/*
 * Gagan Arora — portfolio.
 * Shares its design system (theme tokens, glass surfaces, buttons, motion
 * scale) with the Mobile Apps site, so both read as one family.
 */

/* Register theme tokens so they interpolate in sync on <html> */
@property --background {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffff;
}

@property --foreground {
  syntax: "<color>";
  inherits: true;
  initial-value: #222222;
}

@property --muted {
  syntax: "<color>";
  inherits: true;
  initial-value: #6b6b70;
}

@property --heading {
  syntax: "<color>";
  inherits: true;
  initial-value: #556d91;
}

@property --heading-hover {
  syntax: "<color>";
  inherits: true;
  initial-value: #445a78;
}

@property --accent {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffc454;
}

@property --surface {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffff;
}

@property --surface-hover {
  syntax: "<color>";
  inherits: true;
  initial-value: #fff9ef;
}

@property --border-color {
  syntax: "<color>";
  inherits: true;
  initial-value: #00000014;
}

@property --border-subtle {
  syntax: "<color>";
  inherits: true;
  initial-value: #0000000d;
}

@property --on-heading {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffff;
}

@property --hero-from {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffff;
}

@property --hero-to {
  syntax: "<color>";
  inherits: true;
  initial-value: #fff9ef;
}

@property --glass-bg {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffffae;
}

@property --glass-bg-strong {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffffd1;
}

@property --glass-border {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffffbf;
}

@property --glass-highlight {
  syntax: "<color>";
  inherits: true;
  initial-value: #fffffff2;
}

@property --ambient-1 {
  syntax: "<color>";
  inherits: true;
  initial-value: #556d9124;
}

@property --ambient-2 {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffc4542e;
}

@property --ambient-3 {
  syntax: "<color>";
  inherits: true;
  initial-value: #556d9114;
}

@property --header-shadow {
  syntax: "<color>";
  inherits: true;
  initial-value: #556d910a;
}

/* Glass shadow colours are registered too, so shadows fade with the theme instead of jumping */
@property --shadow-near {
  syntax: "<color>";
  inherits: true;
  initial-value: #1e2d4b0a;
}

@property --shadow-far {
  syntax: "<color>";
  inherits: true;
  initial-value: #1e2d4b12;
}

@property --shadow-rim {
  syntax: "<color>";
  inherits: true;
  initial-value: #ffffffe6;
}

:root {
  --background: #ffffff;
  --foreground: #222222;
  --muted: #6b6b70;
  --heading: #556d91;
  --heading-hover: #445a78;
  --accent: #ffc454;
  --surface: #ffffff;
  --surface-hover: #fff9ef;
  --border-color: #00000014;
  --border-subtle: #0000000d;
  --on-heading: #ffffff;
  --hero-from: #ffffff;
  --hero-to: #fff9ef;
  --glass-bg: rgba(255, 255, 255, 0.68);
  --glass-bg-strong: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.75);
  --glass-highlight: rgba(255, 255, 255, 0.95);
  --shadow-near: rgba(30, 45, 75, 0.04);
  --shadow-far: rgba(30, 45, 75, 0.07);
  --shadow-rim: rgba(255, 255, 255, 0.9);
  --glass-shadow:
    0 2px 6px var(--shadow-near),
    0 8px 30px var(--shadow-far),
    inset 0 1px 0 var(--shadow-rim);
  --ambient-1: rgba(85, 109, 145, 0.14);
  --ambient-2: rgba(255, 196, 84, 0.18);
  --ambient-3: rgba(85, 109, 145, 0.08);
  --header-shadow: rgba(85, 109, 145, 0.04);
  --success: #16a34a;
  --danger: #dc2626;
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  /* Damped spring (about 8% overshoot) for things settling back after a press */
  --ease-spring: linear(0, 0.057 4.2%, 0.194 8.3%, 0.368 12.5%, 0.545 16.7%, 0.706 20.8%, 0.84 25%, 0.942 29.2%, 1.013 33.3%, 1.056 37.5%, 1.078 41.7%, 1.084 45.8%, 1.078 50%, 1.066 54.2%, 1.052 58.3%, 1.037 62.5%, 1.024 66.7%, 1.013 70.8%, 1.004 75%, 0.999 79.2%, 0.995 83.3%, 0.993 87.5%, 0.993 91.7%, 0.994 95.8%, 1);
  /* Motion scale: micro-interactions, presses, and overlays */
  --duration-micro: 160ms;
  --duration-press: 90ms;
  --duration-spring: 420ms;
  --duration-overlay: 180ms;
  --radius-card: 1.5rem;
  --radius-icon: 22.37%; /* iOS app-icon continuous corner ratio */
  --theme-duration: 200ms;
  --theme-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --page-width: 72rem;
  --page-gutter: 1.5rem;
  --header-height: 4.75rem;
}

.dark {
  --background: #0c0f14;
  --foreground: #e6e8ec;
  --muted: #949aa6;
  --heading: #9cb4d4;
  --heading-hover: #b0c5e3;
  --surface: #151a24;
  --surface-hover: #1c2330;
  --border-color: #ffffff14;
  --border-subtle: #ffffff0d;
  --on-heading: #0c0f14;
  --hero-from: #0c0f14;
  --hero-to: #151a24;
  --glass-bg: rgba(21, 26, 36, 0.62);
  --glass-bg-strong: rgba(21, 26, 36, 0.78);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-highlight: rgba(255, 255, 255, 0.06);
  --shadow-near: rgba(0, 0, 0, 0.2);
  --shadow-far: rgba(0, 0, 0, 0.35);
  --shadow-rim: rgba(255, 255, 255, 0.06);
  --ambient-1: rgba(156, 180, 212, 0.12);
  --ambient-2: rgba(255, 196, 84, 0.08);
  --ambient-3: rgba(156, 180, 212, 0.06);
  --header-shadow: rgba(0, 0, 0, 0.2);
  --success: #86efac;
  --danger: #fca5a5;
}

/* Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  transition:
    --background var(--theme-duration) var(--theme-ease),
    --foreground var(--theme-duration) var(--theme-ease),
    --muted var(--theme-duration) var(--theme-ease),
    --heading var(--theme-duration) var(--theme-ease),
    --heading-hover var(--theme-duration) var(--theme-ease),
    --accent var(--theme-duration) var(--theme-ease),
    --surface var(--theme-duration) var(--theme-ease),
    --surface-hover var(--theme-duration) var(--theme-ease),
    --border-color var(--theme-duration) var(--theme-ease),
    --border-subtle var(--theme-duration) var(--theme-ease),
    --on-heading var(--theme-duration) var(--theme-ease),
    --hero-from var(--theme-duration) var(--theme-ease),
    --hero-to var(--theme-duration) var(--theme-ease),
    --glass-bg var(--theme-duration) var(--theme-ease),
    --glass-bg-strong var(--theme-duration) var(--theme-ease),
    --glass-border var(--theme-duration) var(--theme-ease),
    --glass-highlight var(--theme-duration) var(--theme-ease),
    --ambient-1 var(--theme-duration) var(--theme-ease),
    --ambient-2 var(--theme-duration) var(--theme-ease),
    --ambient-3 var(--theme-duration) var(--theme-ease),
    --header-shadow var(--theme-duration) var(--theme-ease),
    --shadow-near var(--theme-duration) var(--theme-ease),
    --shadow-far var(--theme-duration) var(--theme-ease),
    --shadow-rim var(--theme-duration) var(--theme-ease);
}

html.dark {
  color-scheme: dark;
}

/*
 * While theme tokens interpolate on <html>, every colour and shadow follows them
 * in sync. Per-element colour transitions would lag behind, so only transform
 * and opacity transitions (such as the theme toggle's icon swap) stay active.
 */
html.theme-switching *,
html.theme-switching *::before,
html.theme-switching *::after {
  transition-property: transform, opacity, translate, rotate, scale !important;
}

/*
 * Where the browser supports view transitions, the new theme instead opens in a
 * circle from the toggle (the script animates the clip). The tokens then change
 * at once, so the circle's edge is a clean line between the two themes.
 */
html.theme-reveal {
  transition: none;
}

html.theme-reveal::view-transition-old(root),
html.theme-reveal::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

body {
  margin: 0;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: var(--background);
  color: var(--foreground);
  font-family: "Josefin Sans", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
p,
ul,
ol {
  margin: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
  letter-spacing: -0.015em;
}

p {
  text-wrap: pretty;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button {
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

/* Visible, consistent keyboard focus */
:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--heading) 75%, transparent);
  outline-offset: 3px;
}

::selection {
  background: color-mix(in srgb, var(--accent) 45%, var(--background));
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.icon-sm {
  width: 1rem;
  height: 1rem;
}

.icon-xs {
  width: 0.875rem;
  height: 0.875rem;
}

.icon-lg {
  width: 1.75rem;
  height: 1.75rem;
}

.icon-xl {
  width: 2rem;
  height: 2rem;
}

.container {
  width: 100%;
  max-width: var(--page-width);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow-sm {
  font-size: 0.75rem;
}

/* Page backdrop */
.page-shell {
  position: relative;
  isolation: isolate;
}

.ambient-bg {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

/* Static on purpose: no looping background motion */
.ambient-bg::before,
.ambient-bg::after {
  content: "";
  position: absolute;
  border-radius: 9999px;
}

.ambient-bg::before {
  top: -8%;
  left: -6%;
  width: 42vw;
  height: 42vw;
  background: radial-gradient(circle, var(--ambient-1) 0%, transparent 70%);
}

.ambient-bg::after {
  right: -8%;
  bottom: 10%;
  width: 36vw;
  height: 36vw;
  background: radial-gradient(circle, var(--ambient-2) 0%, transparent 70%);
}

.hero-gradient {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--hero-from) 0%, var(--hero-to) 100%);
}

.hero-gradient::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 80% 50% at 50% -10%,
    var(--ambient-3) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* Glass surfaces */
.glass-panel {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.glass-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Content-free glass layer behind the profile panel */
.glass-surface {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  background:
    linear-gradient(
      125deg,
      color-mix(in srgb, var(--glass-highlight) 55%, transparent) 0%,
      transparent 42%
    ),
    var(--glass-bg);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/*
 * The project grid can show two dozen cards at once. A backdrop blur on each
 * would be re-run for every scrolled frame, so these use the denser glass
 * colour without the blur; over the soft page backdrop they look the same.
 */
.glass-card-lite {
  background: var(--glass-bg-strong);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

@media (max-width: 768px) {
  .glass-card:not(.glass-card-lite),
  .glass-panel,
  .glass-surface {
    backdrop-filter: blur(10px) saturate(140%);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
  }
}

.glass-shine {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    var(--glass-highlight) 0%,
    transparent 42%,
    transparent 100%
  );
  opacity: 0.55;
}

/* Card content sits above the shine layer */
.card-body {
  position: relative;
  padding: 1.5rem;
}

@media (min-width: 640px) {
  .card-body-lg {
    padding: 2rem;
  }
}

/* Photos — iOS-style continuous corners with a hairline edge, like the app icons */
.app-icon {
  overflow: hidden;
  border-radius: var(--radius-icon);
  box-shadow:
    0 0 0 0.5px rgba(0, 0, 0, 0.12),
    0 10px 24px rgba(0, 0, 0, 0.16);
}

.app-icon > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Small chevrons that nudge toward where a hovered row or card leads */
.chevron-nudge {
  transition: translate var(--duration-micro) var(--ease-out-quart);
}

.group:hover .chevron-nudge {
  translate: 2px 0;
}

/* Round glass buttons (theme, menu, social links, back to top) */
.icon-button {
  display: inline-flex;
  height: 2.75rem;
  width: 2.75rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  color: var(--heading);
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--duration-micro) var(--ease-out-quart),
    color var(--duration-micro) ease-out;
}

.icon-button:hover {
  color: var(--foreground);
}

@media (hover: hover) and (pointer: fine) {
  .icon-button:hover {
    transform: scale(1.05);
  }
}

.icon-button:active {
  transform: scale(0.94);
  transition-duration: var(--duration-press);
}

/* Theme toggle: both icons are rendered; <html class="dark"> picks one and switching crossfades them */
.theme-toggle {
  position: relative;
}

.theme-toggle-icon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transition:
    opacity var(--theme-duration) var(--theme-ease),
    transform var(--theme-duration) var(--theme-ease);
}

/* Both icons turn the same way: the outgoing one leaves as the incoming one arrives */
.theme-toggle-sun {
  opacity: 0;
  transform: rotate(45deg) scale(0.7);
}

html.dark .theme-toggle-moon {
  opacity: 0;
  transform: rotate(-45deg) scale(0.7);
}

html.dark .theme-toggle-sun {
  opacity: 1;
  transform: none;
}

.icon-badge {
  display: inline-flex;
  height: 2.5rem;
  width: 2.5rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--heading) 12%, transparent);
  color: var(--heading);
}

.icon-badge-lg {
  height: 2.75rem;
  width: 2.75rem;
}

.group:hover .icon-badge {
  background: color-mix(in srgb, var(--heading) 18%, transparent);
  color: var(--foreground);
}

.inline-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  vertical-align: middle;
  line-height: 1;
}

h2.inline-icon,
h3.inline-icon {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.text-icon-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
}

.section-icon {
  display: inline-flex;
  height: 2rem;
  width: 2rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  color: var(--heading);
}

/* Small pills: skills in the hero, tech tags on project cards */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--heading) 16%, transparent);
  background: color-mix(in srgb, var(--heading) 9%, transparent);
  padding: 0.3125rem 0.625rem 0.1875rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--heading);
}

.chip-lg {
  background: var(--glass-bg);
  padding: 0.5rem 1rem 0.375rem;
  font-size: 0.875rem;
}

.chip-md {
  padding: 0.4375rem 0.75rem 0.3125rem;
  font-size: 0.8125rem;
}

.chip-accent {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 24%, transparent);
  color: var(--foreground);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 9999px;
  background: linear-gradient(
    145deg,
    var(--heading) 0%,
    color-mix(in srgb, var(--heading) 85%, #000) 100%
  );
  min-height: 2.75rem;
  padding: 0.625rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.005em;
  color: var(--on-heading);
  position: relative;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
  box-shadow:
    0 4px 14px color-mix(in srgb, var(--heading) 35%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: transform var(--duration-spring) var(--ease-spring);
}

/* Deeper hover shadow on its own layer, so hovering fades opacity instead of animating box-shadow */
.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: 0 8px 22px color-mix(in srgb, var(--heading) 40%, transparent);
  opacity: 0;
  transition: opacity var(--duration-micro) ease-out;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    transition: transform var(--duration-micro) var(--ease-out-quart);
  }

  .btn-primary:hover:not(:disabled)::after {
    opacity: 1;
  }
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.97);
  transition: transform var(--duration-press) ease-out;
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--heading) 22%, transparent);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  min-height: 2.75rem;
  padding: 0.625rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.005em;
  color: var(--heading);
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--duration-spring) var(--ease-spring),
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out;
}

.btn-ghost:hover {
  border-color: color-mix(in srgb, var(--heading) 40%, transparent);
  background-color: var(--glass-bg-strong);
}

@media (hover: hover) and (pointer: fine) {
  .btn-ghost:hover {
    transform: translateY(-2px);
    transition:
      transform var(--duration-micro) var(--ease-out-quart),
      background-color var(--duration-micro) ease-out,
      border-color var(--duration-micro) ease-out;
  }
}

.btn-ghost:active {
  transform: scale(0.97);
  transition-duration: var(--duration-press);
}

/* Compact button for a card's corner action */
.btn-sm {
  min-height: 2.25rem;
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
}

/* Header */
.glass-header {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 1px 0 var(--header-shadow);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.875rem;
}

.brand {
  display: inline-flex;
  min-width: 0;
  flex-direction: column;
}

.brand-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.025em;
  color: var(--heading);
  transition: color var(--duration-micro) ease-out;
}

.brand:hover .brand-name {
  color: var(--foreground);
}

.site-header-actions {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 0.75rem;
}

.site-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
  margin-right: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  color: var(--heading);
}

.site-nav a {
  position: relative;
  padding-block: 0.5rem;
  line-height: 1;
  transition: color var(--duration-micro) ease-out;
}

/* Marks the section currently in view */
.site-nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  border-radius: 9999px;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.4);
  transition:
    opacity var(--duration-micro) ease-out,
    transform var(--duration-micro) var(--ease-out-quart);
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--foreground);
}

.site-nav a[aria-current="true"]::after {
  opacity: 1;
  transform: none;
}

@media (min-width: 1024px) {
  .site-nav {
    display: flex;
  }

  .menu-button {
    display: none;
  }
}

@media (min-width: 1200px) {
  .site-nav {
    gap: 2rem;
  }
}

/* Reading progress: fills along the header's bottom edge (the script sets its scale) */
.scroll-progress {
  position: absolute;
  inset: auto 0 -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--heading) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* Mobile full-page menu */
.mobile-menu-root {
  position: fixed;
  inset: 0;
  z-index: 150;
  overflow-y: auto;
}

.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--background) 30%, #000);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: opacity var(--duration-overlay) ease-out;
}

.mobile-menu-panel {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  background: color-mix(in srgb, var(--background) 92%, transparent);
  outline: none;
  transition:
    opacity 200ms var(--ease-out-quart),
    transform 200ms var(--ease-out-quart);
}

.mobile-menu-panel-inner {
  margin: 0 auto;
  width: 100%;
  max-width: 36rem;
  padding: 1.25rem 1.5rem 2rem;
}

.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

/* Items follow the panel in, slightly staggered (enter only) */
.mobile-menu-item {
  --enter-delay: 0ms;
  display: flex;
  width: 100%;
  align-items: center;
  gap: 1rem;
  border-radius: 1rem;
  border: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  padding: 1rem 1.25rem;
  text-align: left;
  transition:
    opacity 220ms var(--ease-out-quart) var(--enter-delay),
    transform 220ms var(--ease-out-quart) var(--enter-delay),
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out;
}

.mobile-menu-item:hover {
  border-color: color-mix(in srgb, var(--heading) 25%, transparent);
  background-color: var(--surface-hover);
}

.mobile-menu-item:nth-child(1) {
  --enter-delay: 40ms;
}

.mobile-menu-item:nth-child(2) {
  --enter-delay: 70ms;
}

.mobile-menu-item:nth-child(3) {
  --enter-delay: 100ms;
}

.mobile-menu-item:nth-child(4) {
  --enter-delay: 130ms;
}

.mobile-menu-item:nth-child(5) {
  --enter-delay: 160ms;
}

.mobile-menu-item:nth-child(6) {
  --enter-delay: 190ms;
}

.mobile-menu-item:nth-child(7) {
  --enter-delay: 220ms;
}

.mobile-menu-item-text {
  min-width: 0;
  flex: 1;
}

.mobile-menu-item-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.mobile-menu-item-title {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  color: var(--heading);
  transition: color var(--duration-micro) ease-out;
}

.mobile-menu-item:hover .mobile-menu-item-title {
  color: var(--foreground);
}

.mobile-menu-item > .icon {
  color: var(--muted);
}

.mobile-menu-root[data-state="closed"] .mobile-menu-backdrop {
  opacity: 0;
  transition-duration: 160ms;
}

.mobile-menu-root[data-state="closed"] .mobile-menu-panel {
  opacity: 0;
  transform: translateY(-8px);
  transition-duration: 160ms;
  transition-timing-function: ease-in;
}

.mobile-menu-root[data-state="closed"] .mobile-menu-item {
  --enter-delay: 0ms;
}

@starting-style {
  .mobile-menu-root[data-state="open"] .mobile-menu-backdrop {
    opacity: 0;
  }

  .mobile-menu-root[data-state="open"] .mobile-menu-panel {
    opacity: 0;
    transform: translateY(-12px);
  }

  .mobile-menu-root[data-state="open"] .mobile-menu-item {
    opacity: 0;
    transform: translateY(10px);
  }
}

.dialog-close {
  display: inline-flex;
  height: 2.25rem;
  width: 2.25rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--heading) 18%, transparent);
  background: var(--glass-bg);
  color: var(--heading);
}

.dialog-close:hover {
  border-color: color-mix(in srgb, var(--heading) 35%, transparent);
  background: var(--glass-bg-strong);
  color: var(--foreground);
}

/*
 * Hero: the introduction beside the banner photo (stacked, photo first, on
 * small screens).
 *
 * Reveal: eyebrow, name, photo and the rest fade and rise in turn, then the
 * highlight draws in once. It plays once per session: <html class="hero-seen">
 * (set by the script in <head>) turns it off.
 */
.hero-inner {
  position: relative;
  display: grid;
  gap: 2.5rem;
  padding-block: 2.5rem 3.5rem;
  text-align: center;
}

.hero-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
}

/* The bottom margin leaves room for the badge that hangs below the photo */
.hero-media {
  position: relative;
  order: -1;
  width: min(100%, 13rem);
  margin: 0 auto 1.5rem;
}

.hero-photo {
  overflow: hidden;
  aspect-ratio: 1;
  border-radius: 2rem;
  box-shadow:
    0 0 0 1px var(--glass-border),
    0 24px 48px rgba(0, 0, 0, 0.18);
}

/* Zoomed in from the bottom edge: closer on the person, with less sky above */
.hero-photo > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.28);
  transform-origin: 50% 100%;
}

/* Current role: hangs from the photo's lower edge, mostly below it, so it hides little of the picture */
.hero-badge {
  position: absolute;
  bottom: 0;
  left: 50%;
  translate: -50% 68%;
  display: flex;
  width: max-content;
  max-width: calc(100% + 4rem);
  align-items: center;
  gap: 0.75rem;
  border-radius: 1rem;
  padding: 0.625rem 1rem;
  text-align: left;
}

.hero-badge .eyebrow {
  display: block;
  font-size: 0.6875rem;
}

.hero-badge-text {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--heading);
}

/* Static on purpose: no pulsing */
.status-dot {
  height: 0.625rem;
  width: 0.625rem;
  flex-shrink: 0;
  border-radius: 9999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px color-mix(in srgb, #22c55e 22%, transparent);
}

.hero-title {
  position: relative;
  display: inline-block;
  margin-top: 0.75rem;
  padding-inline: 0.5rem;
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--foreground);
}

.hero-title-text {
  position: relative;
  z-index: 1;
}

.hero-highlight {
  position: absolute;
  inset: 0.28em -12% 0.3em;
  border-radius: 0.125rem;
  background: color-mix(in srgb, var(--accent) 90%, transparent);
  box-shadow: 0 4px 20px rgba(255, 196, 84, 0.35);
  transform-origin: 0 50%;
  animation: hero-highlight 480ms var(--ease-out-quart) 380ms both;
}

.hero-subtitle {
  max-width: 34rem;
  margin-top: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.625;
  color: var(--muted);
}

.hero-role {
  display: block;
  font-weight: 600;
  color: var(--foreground);
}

/*
 * Rotating word in the hero sentence. The script stacks the words in one line
 * box and resizes it to the current word, so the sentence closes up around it.
 */
.rotator.is-ready {
  position: relative;
  display: inline-block;
  height: 1lh;
  overflow: hidden;
  vertical-align: bottom;
  white-space: nowrap;
  font-weight: 600;
  color: var(--heading);
  transition: width 380ms var(--ease-out-quart);
}

.rotator-word {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  transform: translateY(100%);
  transition:
    opacity 380ms var(--ease-out-quart),
    transform 380ms var(--ease-out-quart);
}

.rotator-word.is-active {
  opacity: 1;
  transform: none;
}

.rotator-word.is-leaving {
  opacity: 0;
  transform: translateY(-100%);
}

.hero-pitch {
  max-width: 32rem;
  margin-top: 0.75rem;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted);
}

/* The stack at a glance: one row, centred until the hero splits into columns */
.hero-chips {
  justify-content: center;
  margin-top: 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-social {
  display: inline-flex;
  gap: 0.625rem;
}

.hero-reveal {
  animation: hero-reveal 520ms var(--ease-out-quart) both;
  animation-delay: calc(60ms + var(--i, 0) * 80ms);
}

html.hero-seen .hero-reveal,
html.hero-seen .hero-highlight {
  animation: none;
}

@keyframes hero-reveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-highlight {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@media (min-width: 640px) {
  .hero-media {
    width: min(100%, 18rem);
  }

  .hero-title {
    font-size: 3.75rem;
    line-height: 1;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 4rem;
    padding-block: 5rem 5.5rem;
    text-align: left;
  }

  .hero-copy {
    align-items: flex-start;
  }

  .hero-media {
    order: 0;
    width: min(100%, 24rem);
    margin: 0 0 1.5rem auto;
  }

  /* Flush with the text column, so the highlight only overhangs a little */
  .hero-title {
    padding-inline: 0;
  }

  .hero-highlight {
    right: -0.3em;
    left: -0.15em;
  }

  .hero-chips,
  .hero-actions {
    justify-content: flex-start;
  }

  .hero-badge {
    left: -2rem;
    translate: 0 55%;
    max-width: 100%;
  }
}

/* Sections */
.section {
  padding-block: 2.5rem;
  scroll-margin-top: var(--header-height);
}

.section:last-of-type {
  padding-bottom: 5rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
}

/*
 * The head wraps as a row, so on a narrow screen whatever sits beside the
 * title (a count, a button) drops below it instead of squeezing it. A title
 * too long for the screen by itself still wraps.
 */
.section-head > div {
  min-width: 0;
}

.section-title {
  margin-top: 0.5rem;
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--heading);
}

.section-count {
  flex-shrink: 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--heading);
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }

  .section-count {
    font-size: 1.5rem;
  }
}

/* A line under a section's title, in the site's own voice */
.section-lead {
  max-width: 40rem;
  margin-top: 0.875rem;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--muted);
}

.section-lead strong {
  font-weight: 600;
  color: var(--foreground);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

.card-text {
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted);
}

/* About: profile panel beside the introduction, like an app's detail page */
.about-grid {
  display: grid;
  gap: 1.5rem;
}

.profile-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  padding: 1.5rem;
}

.profile-panel-body {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.profile-photo {
  width: 11rem;
  aspect-ratio: 1;
  flex-shrink: 0;
  border-radius: 1.5rem;
}

.profile-details {
  min-width: 0;
}

.profile-name {
  margin-top: 0.25rem;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--heading);
}

.profile-location {
  justify-content: center;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.625rem;
  margin-top: 1.25rem;
}

.profile-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/*
 * Beside the profile panel the two share one height: the text keeps to the top
 * and takes up the slack, so the three points stay on the card's bottom edge.
 */
.about-card,
.about-card .card-body {
  display: flex;
  flex-direction: column;
}

.about-card .card-body {
  flex: 1;
}

.about-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--heading);
}

.about-text {
  flex: 1;
  margin-top: 1.25rem;
  padding-bottom: 1.75rem;
}

/* The opening sentence carries the summary, so it reads a size up from the rest */
.about-lead {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--foreground);
}

.about-text .card-text {
  margin-top: 1rem;
}

/*
 * Three strengths under the text. On a phone each is a row with its icon on
 * the left; with more room they sit side by side, icon on top.
 */
.about-points {
  display: grid;
  gap: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.about-points > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  column-gap: 0.875rem;
}

.about-points .icon-badge {
  grid-row: span 2;
}

.about-point-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

.about-point-text {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--muted);
}

@media (min-width: 640px) {
  .about-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .about-points > li {
    display: block;
  }

  .about-point-title {
    margin-top: 0.75rem;
  }
}

/* Headline numbers under the introduction */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.stat-card {
  padding: 1.25rem 1.5rem;
}

.stat-card > :not(.glass-shine) {
  position: relative;
}

/* Even-width digits, so the number does not jitter while it counts up */
.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--heading);
}

.stat-card .eyebrow {
  margin-top: 0.5rem;
  letter-spacing: 0.14em;
}

@media (min-width: 900px) {
  .stat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 2rem;
  }
}

/* What I build: a bento grid, wide and narrow tiles alternating row by row */
.bento {
  display: grid;
  gap: 1rem;
}

.bento-card .card-body {
  display: flex;
  height: 100%;
  flex-direction: column;
  align-items: flex-start;
}

.bento-card .card-title {
  margin-top: 1rem;
}

.bento-card .card-text {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
}

/* Tags and links keep to the tile's bottom edge */
.bento-card .chip-row,
.bento-link {
  margin-top: auto;
  padding-top: 1.25rem;
}

.bento-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--heading);
  transition: color var(--duration-micro) ease-out;
}

.bento-link:hover {
  color: var(--foreground);
}

@media (min-width: 640px) {
  .bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 1fr;
  }

  /* In two columns the last tile would sit alone, so it takes the row */
  .bento-wide,
  .bento > :last-child {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .bento {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .bento > :last-child:not(.bento-wide) {
    grid-column: auto;
  }
}

/* Skills: one row per group, its name beside its technologies */
.skill-list {
  margin: 0;
}

/* Tags arrive one after another once the card is on screen (classes set by the script) */
.chips-pending .chip {
  opacity: 0;
}

.chips-in .chip {
  animation: chip-in 320ms var(--ease-out-quart) both;
  animation-delay: calc(var(--n, 0) * 18ms);
}

@keyframes chip-in {
  from {
    opacity: 0;
    transform: translateY(6px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.skill-row {
  display: grid;
  gap: 0.875rem;
  border-top: 1px solid var(--border-subtle);
  padding-block: 1.25rem;
}

.skill-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.skill-row:last-child {
  padding-bottom: 0;
}

.skill-row dt {
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--heading);
}

.skill-row dd {
  margin: 0;
}

@media (min-width: 768px) {
  .skill-row {
    grid-template-columns: 16rem minmax(0, 1fr);
    align-items: center;
    gap: 1.5rem;
  }
}

/* Achievement bullets (experience, featured projects) */
.bullet-list {
  display: grid;
  gap: 0.625rem;
  margin-top: 1rem;
  font-size: 1rem;
  line-height: 1.625;
  color: var(--muted);
}

.bullet-list > li {
  position: relative;
  padding-left: 1.1875rem;
}

.bullet-list > li::before {
  content: "";
  position: absolute;
  top: 0.6em;
  left: 0;
  height: 0.4375rem;
  width: 0.4375rem;
  border-radius: 9999px;
  background: var(--heading);
}

@media (min-width: 640px) {
  .profile-panel {
    padding: 2rem;
  }

  .profile-panel-body {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    text-align: left;
  }

  .profile-location,
  .social-row {
    justify-content: flex-start;
  }

  .profile-actions {
    flex-direction: row;
  }
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 20rem minmax(0, 1fr);
    gap: 2rem;
  }

  .profile-panel-body {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .profile-photo {
    width: 100%;
  }

  .profile-details {
    width: 100%;
  }

  .profile-location,
  .social-row {
    justify-content: center;
  }

  .profile-actions {
    flex-direction: column;
  }
}

/* Education and experience share one card: a headline row, then the details */
.card-grid {
  display: grid;
  gap: 1rem;
}

.timeline-card {
  height: 100%;
}

.timeline-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--heading);
}

.timeline-org {
  margin-top: 0.375rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--foreground);
}

.timeline-date {
  margin-top: 0.625rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
}

.timeline-card .eyebrow {
  margin-top: 1.25rem;
}

.timeline-card .eyebrow + .card-title {
  margin-top: 0.375rem;
}

.timeline-card .card-text {
  margin-top: 1rem;
}

/*
 * Side by side, equal rows keep every card in a grid the same height whatever
 * its text. Stacked in one column, each card simply fits its own content.
 */
@media (min-width: 900px) {
  .card-grid {
    grid-auto-rows: 1fr;
  }

  .experience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/*
 * Education timeline: one rail, a marker per entry, newest first. On a phone
 * the year sits above its card; with more room it stands to the left of the
 * rail.
 */
.timeline {
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: calc(0.4375rem - 1px);
  width: 2px;
  background: color-mix(in srgb, var(--heading) 24%, transparent);
}

.timeline-item {
  position: relative;
  padding-left: 2rem;
}

/* The marker on the rail; the newest entry's is filled */
.timeline-item::before {
  content: "";
  position: absolute;
  top: 0.4375rem;
  left: 0;
  height: 0.875rem;
  width: 0.875rem;
  border-radius: 9999px;
  border: 2px solid var(--accent);
  background: var(--background);
}

.timeline-item:first-child::before {
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 26%, transparent);
}

.timeline-item > .timeline-year {
  margin-bottom: 0.75rem;
}

.timeline .timeline-card {
  height: auto;
}

.timeline .timeline-head {
  align-items: center;
}

.timeline .timeline-card .eyebrow {
  margin-top: 0;
}

/* The grade stays whole beside a long school name */
.timeline .chip {
  flex-shrink: 0;
  white-space: nowrap;
}

.timeline .timeline-head + .card-title {
  margin-top: 0.5rem;
}

.timeline-action {
  margin-top: 1.25rem;
}

@media (min-width: 768px) {
  .timeline::before {
    left: calc(8.5rem + 1.5rem - 1px);
  }

  .timeline-item {
    display: grid;
    grid-template-columns: 8.5rem minmax(0, 1fr);
    column-gap: 3rem;
    padding-left: 0;
  }

  .timeline-item::before {
    top: 1.75rem;
    left: calc(8.5rem + 1.5rem - 0.4375rem);
  }

  /* A span of years stays on one line beside its card */
  .timeline-item > .timeline-year {
    margin: 0;
    padding-top: 1.5rem;
    text-align: right;
    white-space: nowrap;
    font-size: 1.25rem;
  }
}

/* Mobile apps: the cards from the apps site, three across on a wide screen */
.app-card {
  height: 100%;
}

.app-card-body {
  position: relative;
  display: flex;
  height: 100%;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem;
}

.app-tile {
  height: 5rem;
  width: 5rem;
  flex-shrink: 0;
  margin-bottom: 1.25rem;
}

.app-card .card-text {
  margin-top: 0.75rem;
  font-size: 0.9375rem;
}

.app-card .chip-row {
  margin-top: 1.25rem;
}

.app-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1.5rem;
}

.chip-live {
  border-color: color-mix(in srgb, #22c55e 45%, transparent);
  background: color-mix(in srgb, #22c55e 14%, transparent);
  color: var(--success);
}

/* Diagonal corner ribbon: clips itself to the card's corner */
.status-ribbon {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  height: 8rem;
  width: 8rem;
  overflow: hidden;
  border-top-right-radius: inherit;
  pointer-events: none;
}

.status-ribbon > span {
  position: absolute;
  top: 2.5rem;
  right: -1.875rem;
  width: 10rem;
  rotate: 45deg;
  background: var(--accent);
  padding-block: 0.25rem;
  text-align: center;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #171717;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

/* Stand-in for a name that is not public yet */
.blurred-placeholder {
  display: inline-block;
  opacity: 0.7;
  filter: blur(5px);
  user-select: none;
  pointer-events: none;
}

/* With room to spare the icon sits beside the details */
@media (min-width: 640px) {
  .app-card-body {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-content: start;
    column-gap: 1.5rem;
    padding: 2rem;
  }

  .app-card-body > :not(.app-tile) {
    grid-column: 2;
  }

  .app-tile {
    grid-row: 1 / span 6;
    margin-bottom: 0;
  }
}

/*
 * Showcase: a phone held at a fixed 3D angle beside the selected app's card.
 * The phone's screen and the floating icons follow the selection; nothing
 * here reacts to hovering.
 */
.app-showcase {
  display: grid;
  align-items: center;
  gap: 1.5rem;
}

.phone-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding-block: 2rem 3.5rem;
  perspective: 1500px;
}

.phone {
  position: relative;
  width: min(13rem, 54vw);
  aspect-ratio: 9 / 19;
  transform: rotateX(8deg) rotateY(-20deg);
  transform-style: preserve-3d;
}

/* Front, middle and back plates of the same shape, a few pixels apart, read as the phone's thickness */
.phone-frame,
.phone-side,
.phone-back {
  position: absolute;
  inset: 0;
  border-radius: 2.4rem;
}

.phone-back {
  background: #05070a;
  box-shadow: 0 0 0 1px #1b212b;
  transform: translateZ(-16px);
}

.phone-side {
  background: linear-gradient(90deg, #3a4352 0%, #0d1117 28%, #0d1117 72%, #3a4352 100%);
  transform: translateZ(-8px);
}

.phone-frame {
  background: linear-gradient(150deg, #39414e 0%, #12161d 45%, #0a0d12 100%);
  padding: 0.5rem;
  box-shadow:
    inset 0 0 0 1.5px rgba(255, 255, 255, 0.14),
    inset 0 0 0 4px #0a0d12;
}

.phone-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 1.95rem;
  background: #000;
}

/* Glass glare across the top-left of the screen */
.phone-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    118deg,
    rgba(255, 255, 255, 0.2) 0%,
    rgba(255, 255, 255, 0.04) 26%,
    transparent 42%
  );
  pointer-events: none;
}

.phone-island {
  position: absolute;
  top: 1.05rem;
  left: 50%;
  z-index: 3;
  height: 1.15rem;
  width: 4.25rem;
  translate: -50% 0;
  border-radius: 9999px;
  background: #000;
}

/* One layer per app; the selected one fades up over the last */
.phone-app {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.04);
  transition:
    opacity 520ms var(--ease-out-quart),
    transform 520ms var(--ease-out-quart);
}

.phone-app.is-active {
  opacity: 1;
  transform: none;
}

.phone-app > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.phone-app-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  background: radial-gradient(120% 80% at 50% 20%, #ffa24d 0%, #fc8019 45%, #b9530a 100%);
  text-align: center;
  color: #fff;
}

.phone-app-icon {
  height: 4.5rem;
  width: 4.5rem;
}

.phone-app-name {
  font-size: 1.25rem;
  font-weight: 700;
}

.phone-app-note {
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.22);
  padding: 0.4375rem 0.75rem 0.3125rem;
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Icons in front of the phone: --depth lifts each off the glass, and the selected one comes forward */
.float-icon {
  --depth: 60px;
  position: absolute;
  height: 3.5rem;
  width: 3.5rem;
  opacity: 0.9;
  transform: translateZ(var(--depth));
  transition:
    transform 620ms var(--ease-spring),
    opacity var(--duration-micro) ease-out,
    box-shadow 320ms ease-out;
}

/*
 * How far each icon hangs off the phone's edge is kept small on narrow screens:
 * perspective pushes anything lifted toward the viewer further out, and the
 * selected icon must still clear the edge of the screen.
 */
.float-icon-1 {
  --depth: 90px;
  top: 12%;
  left: -1rem;
}

.float-icon-2 {
  --depth: 60px;
  top: 44%;
  right: -1.25rem;
}

.float-icon-3 {
  --depth: 40px;
  bottom: 12%;
  left: -0.75rem;
}

.float-icon.is-active {
  opacity: 1;
  transform: translateZ(calc(var(--depth) + 30px)) scale(1.1);
  box-shadow:
    0 0 0 3px var(--accent),
    0 18px 34px rgba(0, 0, 0, 0.3);
}

.phone-shadow {
  position: absolute;
  bottom: 1.25rem;
  height: 1.75rem;
  width: 11rem;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0, 0, 0, 0.34) 0%, transparent 100%);
  filter: blur(6px);
}

.app-detail {
  min-width: 0;
}

/* The tabs need the script; without it every card below is simply listed */
.app-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

html:not(.js) .app-tabs {
  display: none;
}

.app-tab {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.625rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  background: var(--glass-bg);
  padding: 0.375rem 1rem 0.375rem 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--heading);
  -webkit-tap-highlight-color: transparent;
  transition:
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out,
    color var(--duration-micro) ease-out,
    transform var(--duration-spring) var(--ease-spring);
}

.app-tab:hover {
  background-color: var(--glass-bg-strong);
  color: var(--foreground);
}

.app-tab:active {
  transform: scale(0.96);
  transition-duration: var(--duration-press);
}

.app-tab[aria-selected="true"] {
  background-color: color-mix(in srgb, var(--accent) 24%, var(--glass-bg));
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--foreground);
}

.app-tab-icon {
  height: 2rem;
  width: 2rem;
  flex-shrink: 0;
  box-shadow: 0 0 0 0.5px rgba(0, 0, 0, 0.12);
}

.app-panels {
  display: grid;
  gap: 1rem;
}

/*
 * With the script, the cards share one grid cell and only the selected one
 * shows. The cell is as tall as the tallest card, so switching (or the
 * automatic cycle) never moves the page.
 */
html.js .app-panels > .app-card {
  grid-area: 1 / 1;
  visibility: hidden;
  opacity: 0;
  translate: 0 8px;
  transition:
    opacity 420ms var(--ease-out-quart),
    translate 420ms var(--ease-out-quart),
    visibility 0s linear 420ms;
}

html.js .app-panels > .app-card.is-active {
  visibility: visible;
  opacity: 1;
  translate: none;
  transition-delay: 0s;
}

@media (min-width: 640px) {
  .phone {
    width: 14.5rem;
  }

  .float-icon {
    height: 4.25rem;
    width: 4.25rem;
  }

  .float-icon-1 {
    left: -2.25rem;
  }

  .float-icon-2 {
    right: -2.75rem;
  }

  .float-icon-3 {
    left: -1.75rem;
  }
}

@media (min-width: 1024px) {
  .app-showcase {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 2rem;
  }
}

/* Pill buttons that narrow the More projects grid to one kind */
.filter-toggle {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  background: var(--glass-bg);
  padding: 0.625rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--heading);
  -webkit-tap-highlight-color: transparent;
  transition:
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out,
    color var(--duration-micro) ease-out,
    transform var(--duration-spring) var(--ease-spring);
}

.filter-toggle:hover {
  background-color: var(--glass-bg-strong);
  color: var(--foreground);
}

.filter-toggle:active {
  transform: scale(0.96);
  transition-duration: var(--duration-press);
}

.filter-toggle[aria-pressed="true"] {
  background-color: color-mix(in srgb, var(--accent) 24%, var(--glass-bg));
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--foreground);
}

.project-group + .project-group {
  margin-top: 2.5rem;
}

.subhead {
  margin-bottom: 1rem;
}

/*
 * The icon tile: a rounded square, tinted from the heading colour to the
 * accent. The case studies put their number on it.
 */
.featured-icon {
  display: inline-flex;
  height: 3.5rem;
  width: 3.5rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-icon);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--heading) 16%, transparent) 0%,
    color-mix(in srgb, var(--accent) 24%, transparent) 100%
  );
  color: var(--heading);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--heading) 14%, transparent);
}

.featured-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.featured-title {
  margin-top: 0.25rem;
  overflow-wrap: anywhere;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--heading);
}

@media (min-width: 640px) {
  .featured-icon {
    height: 4.5rem;
    width: 4.5rem;
  }
}

/*
 * Case studies: the three projects told in full. Each card is a header, one
 * large figure, then the story in four steps.
 */
.case-list {
  display: grid;
  gap: 1.5rem;
}

.case-card {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.case-body {
  position: relative;
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
}

.case-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 1.5rem;
}

.case-heading {
  display: flex;
  min-width: 0;
  flex: 1 1 22rem;
  align-items: flex-start;
  gap: 1rem;
}

.case-heading > div {
  min-width: 0;
}

/* The study's number, on the tile an icon would otherwise take */
.case-no {
  padding-top: 0.2em;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.case-deck {
  max-width: 38rem;
  margin-top: 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--muted);
}

.case-figure {
  margin: 0;
}

/* A drawn figure, where there is no public screen to show */
.case-diagram {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: color-mix(in srgb, var(--heading) 5%, var(--surface));
  padding: 1.25rem;
}

/*
 * Project map: what a project is made of, drawn as a tree. The project sits
 * on top, its parts hang below it, and each part lists what it holds. On a
 * phone the parts stack along a rail; with more room they stand side by side
 * under one line. It lists names only; a project's own page has the graph.
 */
.pmap {
  --pmap-gap: 1rem;
  --pmap-line: color-mix(in srgb, var(--heading) 34%, transparent);
}

.pmap-label {
  margin-bottom: 1rem;
}

.pmap-root {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  padding: 1rem 1.25rem;
}

.pmap-root-title {
  overflow-wrap: anywhere;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--heading);
}

.pmap-compact .pmap-root {
  padding-block: 0.75rem;
}

.pmap-compact .pmap-root-title {
  font-size: 1.0625rem;
}

.pmap-parts {
  position: relative;
  display: grid;
  gap: var(--pmap-gap);
  margin-top: 1.25rem;
  padding-left: 1.5rem;
}

/* The rail: from the project down to the first part, then on from part to part */
.pmap-parts::before,
.pmap-part::before,
.pmap-part:not(:last-child)::after {
  content: "";
  position: absolute;
  background: var(--pmap-line);
}

.pmap-parts::before {
  top: -1.25rem;
  left: 0.5rem;
  height: calc(1.25rem + 1.75rem);
  width: 1px;
}

.pmap-part {
  position: relative;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--heading) 16%, var(--border-color));
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  padding: 1rem 1.125rem 1.125rem;
}

/* A tick from the rail into each part, level with the part's title */
.pmap-part::before {
  top: 1.75rem;
  right: 100%;
  height: 1px;
  width: 1rem;
}

.pmap-part:not(:last-child)::after {
  top: 1.75rem;
  bottom: calc(-1 * (var(--pmap-gap) + 1.75rem));
  left: calc(-1rem - 1px);
  width: 1px;
}

.pmap-part-title {
  display: flex;
  gap: 0.625rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

.pmap-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.875rem;
}

.pmap-list > li {
  position: relative;
  padding-left: 1rem;
}

.pmap-list > li::before {
  content: "";
  position: absolute;
  top: 0.5em;
  left: 0;
  height: 0.375rem;
  width: 0.375rem;
  border-radius: 9999px;
  background: var(--accent);
}

.pmap-item-title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--foreground);
}

.pmap-compact .pmap-list {
  gap: 0.5rem;
}

/* How many names a part holds beyond those shown */
.pmap-list > .pmap-more::before {
  content: none;
}

.pmap-more .pmap-item-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--heading);
}

.pmap-compact .pmap-item-title {
  font-weight: 500;
  color: var(--muted);
}

@media (min-width: 900px) {
  .pmap-root {
    width: fit-content;
    max-width: 100%;
    margin-inline: auto;
    padding-inline: 1.5rem;
  }

  /* A stem from the project down to the line the parts hang from */
  .pmap-root::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    height: 1.25rem;
    width: 1px;
    background: var(--pmap-line);
  }

  /* No gap between columns (each part carries its own margin), so every centre is an exact fraction */
  .pmap-parts {
    grid-template-columns: repeat(var(--count), minmax(0, 1fr));
    gap: 0;
    margin-top: 2.5rem;
    margin-inline: calc(var(--pmap-gap) / -2);
    padding-left: 0;
  }

  /* The line, from the first part's centre to the last one's */
  .pmap-parts::before {
    top: -1.25rem;
    right: calc(50% / var(--count));
    left: calc(50% / var(--count));
    height: 1px;
    width: auto;
  }

  .pmap-part {
    margin-inline: calc(var(--pmap-gap) / 2);
  }

  /* A drop from the line into each part */
  .pmap-part::before {
    top: auto;
    right: auto;
    bottom: 100%;
    left: 50%;
    height: 1.25rem;
    width: 1px;
  }

  .pmap-part:not(:last-child)::after {
    content: none;
  }
}

/*
 * Feature graph (project pages): the project, its parts and their items as
 * nodes, joined by lines the script draws. Selecting a node shows its detail
 * in the reading panel beside the graph. On a phone the nodes stack as an
 * indented list and each opens in place. Without the script it is that same
 * list, with every detail showing.
 */
.fgraph {
  --fgraph-line: color-mix(in srgb, var(--heading) 40%, transparent);
}

/* The canvas: dotted, like the grid of a diagram editor */
.fgraph-canvas {
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background-color: color-mix(in srgb, var(--heading) 5%, var(--surface));
  background-image: radial-gradient(
    circle,
    color-mix(in srgb, var(--heading) 24%, transparent) 1px,
    transparent 1.5px
  );
  background-size: 1.25rem 1.25rem;
  padding: 1rem;
}

.fgraph-edges {
  display: none;
}

.fgraph-stages,
.fgraph-leaves {
  display: grid;
  margin-top: 0.625rem;
  margin-left: 1rem;
  border-left: 1px solid var(--fgraph-line);
  padding-left: 1rem;
}

.fgraph-stages {
  gap: 0.875rem;
}

.fgraph-leaves {
  gap: 0.5rem;
}

.fgraph-node {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 0.625rem;
  border-radius: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--heading) 24%, var(--border-color));
  background: var(--surface);
  padding: 0.625rem 0.875rem;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color var(--duration-micro) ease-out,
    box-shadow var(--duration-micro) ease-out;
}

html:not(.js) .fgraph-node {
  cursor: default;
}

.fgraph-node:hover {
  border-color: color-mix(in srgb, var(--heading) 60%, transparent);
}

/* The node being read */
.fgraph-item.is-active > .fgraph-node {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent);
}

.fgraph-node-text {
  display: grid;
  min-width: 0;
  gap: 0.125rem;
}

.fgraph-node-title {
  overflow-wrap: anywhere;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--foreground);
}

.fgraph-node-sub {
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.fgraph-node-stage .fgraph-node-title,
.fgraph-node-root .fgraph-node-title {
  font-weight: 700;
  color: var(--heading);
}

.fgraph-node-root {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}

.fgraph-node-root .fgraph-node-title {
  font-size: 1.125rem;
}

.fgraph-node-root .fgraph-node-sub {
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}

.fgraph-node-root .featured-icon {
  height: 3rem;
  width: 3rem;
}

/* A node's detail, opened in place */
.fgraph-detail {
  margin-top: 0.5rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 0.75rem 0.75rem 0;
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
  padding: 0.875rem 1rem;
}

html.js .fgraph-item:not(.is-active) > .fgraph-detail {
  display: none;
}

.fgraph-detail-title {
  margin-top: 0.25rem;
  overflow-wrap: anywhere;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

:is(.fgraph-detail, .fgraph-reader-body) .card-text {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}

:is(.fgraph-detail, .fgraph-reader-body) .bullet-list {
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.55;
}

/* Where the node sits: what it holds, what comes before and after, what it is built with */
.fgraph-links {
  display: grid;
  gap: 0.875rem;
  margin: 1rem 0 0;
}

.fgraph-links dd {
  margin: 0.375rem 0 0;
}

.fgraph-links a.chip {
  text-decoration: none;
  transition:
    border-color var(--duration-micro) ease-out,
    color var(--duration-micro) ease-out;
}

.fgraph-links a.chip:hover {
  border-color: var(--heading);
  color: var(--foreground);
}

.fgraph-reader {
  display: none;
}

.fgraph-reader-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.875rem;
}

.fgraph-position {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
}

.fgraph-reader-nav {
  display: flex;
  gap: 0.5rem;
}

/*
 * The lines: solid from a node to what it holds. The dashed arrows to what a
 * node leads to stay hidden until that node is selected, so the graph reads
 * as a simple tree first.
 */
.fgraph-edge {
  fill: none;
  stroke: var(--fgraph-line);
  stroke-width: 1.5;
  transition: stroke var(--duration-micro) ease-out;
}

.fgraph-edge.is-on {
  stroke: var(--accent);
  stroke-width: 2.25;
}

.fgraph-edge-flow {
  stroke-dasharray: 4 4;
  opacity: 0;
}

.fgraph-edge-flow.is-on {
  stroke-width: 1.75;
  opacity: 1;
}

.fgraph-edges marker path {
  fill: var(--accent);
}

@media screen and (min-width: 900px) {
  /* Graph on the left, reading panel on the right */
  html.js .fgraph {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(17rem, 1fr);
    align-items: start;
    gap: 1.5rem;
  }

  html.js .fgraph-canvas {
    position: relative;
    padding: 1.75rem 1.5rem;
  }

  html.js .fgraph-edges {
    position: absolute;
    inset: 0;
    display: block;
    height: 100%;
    width: 100%;
    overflow: visible;
    pointer-events: none;
  }

  /* Three columns of nodes: the project, its parts, their items */
  html.js .fgraph-tree {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    column-gap: 2.75rem;
  }

  html.js .fgraph-stages {
    gap: 1.25rem;
    margin: 0;
    border-left: 0;
    padding-left: 0;
  }

  html.js .fgraph-stage {
    display: grid;
    grid-template-columns: 10.5rem minmax(0, 1fr);
    align-items: center;
    column-gap: 2.75rem;
  }

  /* Room on the right for the links that loop from one item to the next */
  html.js .fgraph-leaves {
    margin: 0;
    border-left: 0;
    padding: 0 1.75rem 0 0;
  }

  /* Wide enough for a domain name to break at its dots, not inside a word */
  html.js .fgraph-node-root {
    width: 10.5rem;
    flex-direction: column;
    padding: 1rem 0.75rem;
    text-align: center;
  }

  html.js .fgraph-node-root .fgraph-node-title {
    font-size: 1rem;
  }

  /* Details are read in the panel here, not in place */
  html.js .fgraph .fgraph-item > .fgraph-detail {
    display: none;
  }

  html.js .fgraph-reader {
    position: sticky;
    top: calc(var(--header-height) + 1rem);
    display: block;
    border-radius: 1rem;
    border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
    background: color-mix(in srgb, var(--accent) 10%, var(--surface));
    padding: 1.25rem;
  }
}

/* The story: four steps, stacked on a phone and side by side with more room */
.case-story {
  display: grid;
  gap: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

/* On a project page the story has a card to itself, so it needs no rule above it */
.card-body > .case-story {
  border-top: 0;
  padding-top: 0;
}

.case-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: start;
  column-gap: 0.875rem;
}

.case-step .icon-badge {
  grid-row: span 2;
}

.case-step-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

.case-step .card-text,
.case-step .bullet-list {
  margin-top: 0.375rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.case-step .bullet-list {
  gap: 0.5rem;
}

.case-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.875rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
}

@media (min-width: 640px) {
  .case-body {
    gap: 2rem;
    padding: 2rem;
  }

  .case-no {
    font-size: 1.375rem;
  }

  .case-diagram {
    padding: 1.75rem;
  }

  .case-story {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem 2rem;
  }
}

@media (min-width: 1024px) {
  .case-story {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  /* Icon above the text, and a hairline between one step and the next */
  .case-step {
    display: block;
    border-left: 1px solid var(--border-subtle);
    padding-inline: 1.5rem;
  }

  .case-step:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .case-step:last-child {
    padding-right: 0;
  }

  .case-step-title {
    margin-top: 0.875rem;
  }
}

/*
 * More projects: a grid of small cards, each with its kind's icon in one
 * corner and where it leads in the other. The pill buttons above the grid
 * narrow it to one kind.
 */
.more-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.25rem;
}

.more-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* They work through the script, so without JavaScript they are not offered */
html:not(.js) .more-tabs {
  display: none;
}

.more-count {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
}

.more-grid {
  display: grid;
  gap: 1rem;
}

.more-card {
  display: flex;
  height: 100%;
  flex-direction: column;
  padding: 1.5rem;
}

.more-card > :not(.glass-shine) {
  position: relative;
}

.more-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.more-card .card-title {
  margin-top: 0.375rem;
  overflow-wrap: anywhere;
}

.more-text {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted);
}

/* Tags keep to the card's bottom edge, so they line up across a row */
.more-card .chip-row {
  margin-top: auto;
  padding-top: 1.25rem;
}

/* Where a card leads: the live site, or why there is nothing to open */
.project-action,
.more-status {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
}

.project-action {
  color: var(--heading);
}

.more-status {
  color: var(--muted);
}

/* A card that opens a site lifts a little under the pointer and takes a firmer edge */
.more-card-link {
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--duration-spring) var(--ease-spring),
    border-color var(--duration-micro) ease-out;
}

@media (hover: hover) and (pointer: fine) {
  .more-card-link:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--heading) 45%, transparent);
    transition:
      transform var(--duration-micro) var(--ease-out-quart),
      border-color var(--duration-micro) ease-out;
  }
}

.more-card-link:active {
  transform: scale(0.98);
  transition: transform var(--duration-press) ease-out;
}

/* Page controls under the grid: previous, the page numbers, next, and which cards are showing */
[data-more] {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.more-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.more-pages {
  display: flex;
  gap: 0.375rem;
}

.more-page {
  display: grid;
  height: 2.75rem;
  min-width: 2.75rem;
  place-items: center;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  background: var(--glass-bg);
  padding: 0.15em 0.75rem 0;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--heading);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out,
    color var(--duration-micro) ease-out;
}

.more-page:hover {
  background-color: var(--glass-bg-strong);
  color: var(--foreground);
}

.more-page[aria-current="page"] {
  background-color: color-mix(in srgb, var(--accent) 24%, var(--glass-bg));
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--foreground);
}

.more-pager .icon-button:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.icon-flip {
  rotate: 180deg;
}

.more-range {
  flex-basis: 100%;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
}

@media (min-width: 640px) {
  .more-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 1fr;
  }
}

@media (min-width: 1024px) {
  .more-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Small print: the confidentiality note under the featured work, the privacy line by the form */
.note {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--muted);
}

.note > .icon {
  margin-top: 0.2em;
  color: var(--heading);
}

.note a {
  font-weight: 600;
  color: var(--heading);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--heading) 40%, transparent);
  text-underline-offset: 0.2em;
  transition: color var(--duration-micro) ease-out;
}

.note a:hover {
  color: var(--foreground);
}

.project-group > .note {
  margin-top: 1.25rem;
}

/*
 * Scroll reveal: sections below the fold fade and rise once as they come into
 * view. The script adds .reveal only where it will also remove it, so nothing
 * stays hidden without JavaScript or with reduced motion.
 */
.reveal {
  opacity: 0;
  translate: 0 14px;
}

.reveal.is-revealed {
  opacity: 1;
  translate: none;
  transition:
    opacity 480ms var(--ease-out-quart) var(--reveal-delay, 0ms),
    translate 480ms var(--ease-out-quart) var(--reveal-delay, 0ms);
}

/* A printout (or "Save as PDF") includes sections that were never scrolled to */
@media print {
  .reveal {
    opacity: 1;
    translate: none;
  }
}

/*
 * Project pages (projects/<name>/): a smaller hero with the project's facts,
 * then sections built from the same cards as the home page.
 */
.page-hero {
  position: relative;
  padding-block: 2rem 3rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  color: var(--heading);
  transition: color var(--duration-micro) ease-out;
}

.back-link:hover {
  color: var(--foreground);
}

.back-link .icon {
  transition: translate var(--duration-micro) var(--ease-out-quart);
}

.back-link:hover .icon {
  translate: -2px 0;
}

.page-hero .eyebrow {
  margin-top: 1.75rem;
}

/* A domain name has no spaces to wrap at: the markup offers breaks after its dots, and this is the last resort */
.page-title {
  margin-top: 0.75rem;
  overflow-wrap: break-word;
  font-size: clamp(1.75rem, 1rem + 4vw, 3.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--foreground);
}

.page-lead {
  max-width: 40rem;
  margin-top: 1rem;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Running text on a project page */
.prose {
  max-width: 44rem;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--muted);
}

.prose + .prose {
  margin-top: 1rem;
}

/* Screenshots: a browser window (or a phone) around the capture, with a caption */
.shot {
  margin: 0;
}

.browser-frame {
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: var(--surface);
  box-shadow:
    var(--glass-shadow),
    0 24px 48px rgba(0, 0, 0, 0.1);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  border-bottom: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--heading) 6%, var(--surface));
  padding: 0.625rem 0.875rem;
}

.browser-dot {
  height: 0.5625rem;
  width: 0.5625rem;
  flex-shrink: 0;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--muted) 45%, transparent);
}

.browser-url {
  min-width: 0;
  flex: 1;
  margin-left: 0.5rem;
  overflow: hidden;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--heading) 8%, transparent);
  padding: 0.3125rem 0.75rem 0.125rem;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--muted);
}

.browser-frame > img,
.device-frame > img {
  width: 100%;
  height: auto;
}

.device-frame {
  width: min(100%, 15rem);
  margin-inline: auto;
  overflow: hidden;
  border: 0.5rem solid #0d1117;
  border-radius: 2rem;
  background: #000;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 24px 48px rgba(0, 0, 0, 0.2);
}

.shot-caption {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--muted);
}

.shot-device .shot-caption {
  text-align: center;
}

/* minmax(0, 1fr): a long address in a browser bar must not widen the column past the screen */
.shot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.shot-note {
  margin-top: 1.5rem;
}

/* Text beside a phone capture */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .shot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
  }
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr) 17rem;
    align-items: start;
    gap: 3.5rem;
  }
}

/* What I built: two wide tiles over three narrower ones */
.build-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .build-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 1fr;
  }

  .build-grid > :last-child {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .build-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .build-grid > li,
  .build-grid > :last-child {
    grid-column: span 2;
  }

  .build-grid > :nth-child(-n + 2) {
    grid-column: span 3;
  }
}

/* Architecture: three columns read left to right (top to bottom on a phone), joined by arrows */
.flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.flow-col {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.75rem;
}

.flow-node {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--heading) 16%, var(--border-color));
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  padding: 1rem 1.125rem;
}

/* The piece everything else connects to */
.flow-node-main {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}

.flow-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
}

.flow-text {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--muted);
}

.flow-arrow {
  display: grid;
  place-items: center;
  color: var(--muted);
  rotate: 90deg;
}

.flow-note {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.25rem;
}

@media (min-width: 900px) {
  .flow {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.1fr) auto minmax(0, 1fr);
  }

  /* Centred on the boxes, which start below each column's label */
  .flow-arrow {
    padding-top: 1.75rem;
    rotate: none;
  }
}

/* Closing call to action */
.cta {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
}

.cta .card-text {
  margin-top: 0.5rem;
}

.cta-actions {
  display: flex;
  flex-shrink: 0;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2rem;
  }
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 1.5rem;
}

.contact-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-option {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 1rem;
  border-radius: 1rem;
  border: 1px solid color-mix(in srgb, var(--heading) 16%, var(--border-color));
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  padding: 1rem 1.125rem;
  text-align: left;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--duration-spring) var(--ease-spring),
    background-color var(--duration-micro) ease-out,
    border-color var(--duration-micro) ease-out;
}

a.contact-option:hover {
  border-color: color-mix(in srgb, var(--heading) 30%, var(--border-color));
  background-color: var(--surface-hover);
}

@media (hover: hover) and (pointer: fine) {
  a.contact-option:hover {
    transform: translateY(-1px);
  }
}

a.contact-option:active {
  transform: scale(0.98);
  transition-duration: var(--duration-press);
}

.contact-option-text {
  min-width: 0;
  flex: 1;
}

.contact-option-value {
  display: block;
  margin-top: 0.25rem;
  overflow-wrap: anywhere;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--heading);
}

.contact-option > .icon {
  color: var(--muted);
}

.contact-follow {
  margin-top: 1.5rem;
}

.contact-follow .social-row {
  justify-content: flex-start;
  margin-top: 0.75rem;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 2rem;
  }
}

/* Form fields */
.form-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.5rem;
}

.form-header .card-text {
  margin-top: 0.5rem;
}

.form-fields {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .form-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-field-wide {
    grid-column: 1 / -1;
  }
}

.form-field {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--heading);
}

.form-count {
  font-size: 0.75rem;
  color: var(--muted);
}

.form-input {
  display: block;
  width: 100%;
  appearance: none;
  border-radius: 0.875rem;
  border: 1px solid color-mix(in srgb, var(--heading) 28%, var(--border-color));
  background: var(--surface);
  padding: 0.8125rem 1rem;
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--foreground);
  box-shadow: inset 0 1px 2px color-mix(in srgb, var(--foreground) 4%, transparent);
}

.form-input::placeholder {
  color: color-mix(in srgb, var(--muted) 85%, transparent);
}

.form-input:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--heading) 40%, var(--border-color));
}

.form-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--heading) 55%, transparent);
  background: var(--surface-hover);
  box-shadow:
    inset 0 1px 2px color-mix(in srgb, var(--foreground) 4%, transparent),
    0 0 0 3px color-mix(in srgb, var(--heading) 14%, transparent);
}

.form-input:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-input-invalid {
  border-color: color-mix(in srgb, #f87171 70%, var(--border-color));
}

.form-input-invalid:focus {
  border-color: #f87171;
  box-shadow:
    inset 0 1px 2px color-mix(in srgb, var(--foreground) 4%, transparent),
    0 0 0 3px color-mix(in srgb, #f87171 20%, transparent);
}

.form-error {
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--danger);
}

.form-textarea {
  min-height: 9.5rem;
  resize: vertical;
}

/* Netlify fills this in on the deployed site; until then it takes no row */
.form-captcha:empty {
  display: none;
}

/* The privacy line, then the button: stacked on a phone, side by side with more room */
.form-footer {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.form-footer .btn-primary {
  width: 100%;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .form-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .form-footer .note {
    max-width: 24rem;
  }

  .form-footer .btn-primary {
    width: auto;
  }
}

/* Form submit feedback */
.form-status-enter {
  animation: form-status-in 0.28s var(--ease-out-quart) both;
}

.form-status-icon-pop {
  animation: form-status-pop 0.36s var(--ease-spring) 0.06s both;
}

.form-status-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
  border-radius: 0.875rem;
  border: 1px solid transparent;
  padding: 0.875rem 1rem;
  outline: none;
}

.form-status-banner-error {
  border-color: color-mix(in srgb, #f87171 45%, transparent);
  background: color-mix(in srgb, #f87171 10%, var(--surface));
  color: var(--danger);
}

.form-status-title {
  font-weight: 600;
  color: var(--heading);
}

.form-status-text {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--muted);
}

.form-success {
  padding: 2rem;
  text-align: center;
}

.form-success > :not(.glass-shine) {
  position: relative;
}

.form-success h3 {
  margin-top: 1.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--heading);
  outline: none;
}

.form-success .card-text {
  margin-top: 0.75rem;
}

.form-status-icon-success {
  display: inline-flex;
  height: 3.5rem;
  width: 3.5rem;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: color-mix(in srgb, #4ade80 18%, transparent);
  color: var(--success);
  box-shadow: 0 0 0 1px color-mix(in srgb, #4ade80 28%, transparent);
}

@keyframes form-status-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes form-status-pop {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-block: 2rem;
  font-size: 0.875rem;
  line-height: 1;
  color: var(--muted);
}

.site-footer a {
  font-weight: 600;
  color: var(--heading);
  transition: color var(--duration-micro) ease-out;
}

.site-footer a:hover {
  color: var(--foreground);
}

@media (min-width: 640px) {
  .site-footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* Back to top: appears once the hero has scrolled away */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  translate: 0 8px;
  transition:
    opacity var(--duration-overlay) ease-out,
    translate var(--duration-overlay) var(--ease-out-quart),
    visibility 0s linear var(--duration-overlay),
    transform var(--duration-micro) var(--ease-out-quart),
    color var(--duration-micro) ease-out;
}

.back-to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  translate: none;
  transition-delay: 0s;
}

/*
 * Reduced motion: nothing moves. Entrances are skipped and overlays keep only
 * a short opacity fade. Colour and glow changes (hover, focus, selection)
 * still show state.
 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    transition: none;
  }

  .hero-reveal,
  .hero-highlight,
  .form-status-enter,
  .form-status-icon-pop {
    animation: none !important;
  }

  /* No lifts, presses or slides, in any state */
  .more-card-link,
  .btn-primary,
  .btn-ghost,
  .contact-option,
  .filter-toggle,
  .app-tab,
  .icon-button,
  .theme-toggle-icon,
  .mobile-menu-panel,
  .mobile-menu-item {
    transform: none !important;
  }

  .chevron-nudge,
  .back-link .icon,
  .back-to-top,
  .app-panels > .app-card {
    translate: none !important;
  }

  /* The phone keeps its 3D pose; its screen and icons change without moving */
  .phone-app {
    transform: none !important;
  }

  .float-icon {
    transition: none !important;
  }
}