/* ==========================================================================
   Portfolio design system
   ========================================================================== */

:root {
  --bg: #fafaf9;
  --bg-elevated: #ffffff;
  --bg-muted: #f2f1ef;
  --fg: #1c1917;
  --fg-muted: #57534e;
  --fg-subtle: #78716c;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --accent: #b45309;
  --accent-strong: #92400e;
  --accent-soft: #fef3c7;
  --on-accent: #ffffff;
  --success: #15803d;
  --danger: #b91c1c;
  --shadow: 0 1px 2px rgb(28 25 23 / 0.04), 0 8px 24px -12px rgb(28 25 23 / 0.12);
  --shadow-lg: 0 24px 48px -24px rgb(28 25 23 / 0.25);

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Instrument Serif", ui-serif, Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --container: 1120px;
  --gutter: clamp(16px, 4vw, 32px);
  --section: clamp(72px, 10vw, 128px);
  --header-h: 68px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0a09;
    --bg-elevated: #161412;
    --bg-muted: #1c1917;
    --fg: #f5f5f4;
    --fg-muted: #a8a29e;
    --fg-subtle: #8a837d;
    --border: #292524;
    --border-strong: #3f3a36;
    --accent: #fbbf24;
    --accent-strong: #fcd34d;
    --accent-soft: rgb(251 191 36 / 0.12);
    --on-accent: #1c1917;
    --success: #4ade80;
    --danger: #f87171;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 24px 48px -24px rgb(0 0 0 / 0.7);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0c0a09;
  --bg-elevated: #161412;
  --bg-muted: #1c1917;
  --fg: #f5f5f4;
  --fg-muted: #a8a29e;
  --fg-subtle: #8a837d;
  --border: #292524;
  --border-strong: #3f3a36;
  --accent: #fbbf24;
  --accent-strong: #fcd34d;
  --accent-soft: rgb(251 191 36 / 0.12);
  --on-accent: #1c1917;
  --success: #4ade80;
  --danger: #f87171;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.5);
  --shadow-lg: 0 24px 48px -24px rgb(0 0 0 / 0.7);
  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11", "ss01";
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.025em; font-weight: 650; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--on-accent); }

.icon { flex: none; }

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  padding: 8px 14px; border-radius: var(--radius-sm);
  background: var(--fg); color: var(--bg); font-weight: 600;
}
.skip-link:focus { top: 12px; }

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

.section { padding-block: var(--section); }
.section + .section { padding-top: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-subtle);
  margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 20px; height: 1px; background: currentColor; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 48px; flex-wrap: wrap; }
.section-title { font-size: clamp(1.875rem, 4vw, 2.75rem); max-width: 18ch; }
.section-title em, .display em, .page-head h1 em { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
.lead { font-size: 1.125rem; color: var(--fg-muted); max-width: 60ch; }

.prose { color: var(--fg-muted); font-size: 1.0625rem; max-width: 68ch; }
.prose p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   Buttons, tags, links
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 20px; border-radius: 999px;
  font: 600 0.9375rem/1 var(--font-sans); letter-spacing: -0.005em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background-color .2s, border-color .2s, color .2s, transform .2s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--fg); color: var(--bg); }
.btn--primary:hover { background: var(--accent); color: var(--on-accent); }
.btn--ghost { border-color: var(--border-strong); color: var(--fg); background: transparent; }
.btn--ghost:hover { border-color: var(--fg); }
.btn--sm { height: 38px; padding: 0 16px; font-size: 0.875rem; }
.btn .icon { transition: transform .2s; }
.btn:hover .icon--nudge { transform: translateX(3px); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.9375rem;
  border-bottom: 1px solid var(--border-strong); padding-bottom: 2px; transition: border-color .2s, color .2s;
}
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; list-style: none; }
.tag {
  display: inline-flex; align-items: center; height: 28px; padding: 0 11px; border-radius: 999px;
  font-size: 0.8125rem; font-weight: 500; color: var(--fg-muted);
  background: var(--bg-muted); border: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .2s;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.site-header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.02em; }
.brand__mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--fg); color: var(--bg); font-size: 0.8125rem; font-weight: 700; letter-spacing: 0;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative; padding: 8px 14px; border-radius: 999px;
  font-size: 0.9375rem; font-weight: 500; color: var(--fg-muted); transition: color .2s, background-color .2s;
}
.nav__link:hover { color: var(--fg); background: var(--bg-muted); }
.nav__link[aria-current="page"] { color: var(--fg); }
.nav__link[aria-current="page"]::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; width: 4px; height: 4px;
  border-radius: 50%; background: var(--accent); transform: translateX(-50%);
}

.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 999px;
  border: 1px solid var(--border); background: transparent; color: var(--fg); cursor: pointer;
  transition: border-color .2s, background-color .2s;
}
.icon-btn:hover { border-color: var(--border-strong); background: var(--bg-muted); }
.theme-toggle .icon--sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon--sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon--moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon--sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon--moon { display: none; }
}

.menu-toggle { display: none; }

@media (max-width: 760px) {
  .menu-toggle { display: grid; }
  .header-actions .btn { display: none; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px var(--gutter) 24px; background: var(--bg); border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 14px 4px; border-radius: 0; border-bottom: 1px solid var(--border); font-size: 1.0625rem; }
  .nav__link:hover { background: transparent; }
  .nav__link[aria-current="page"]::after { left: auto; right: 4px; top: 50%; bottom: auto; transform: translateY(-50%); }
  .nav__resume { display: flex !important; margin-top: 16px; }
}
.nav__resume { display: none !important; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero { padding-block: clamp(40px, 8vw, 104px) 0; }

/* Dot grid behind the hero. The amber layer only shows in a soft circle around the cursor. */
.hero { position: relative; isolation: isolate; --grid-dot: rgb(28 25 23 / 0.13); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero { --grid-dot: rgb(245 245 244 / 0.11); } }
:root[data-theme="dark"] .hero { --grid-dot: rgb(245 245 244 / 0.11); }

.hero__bg {
  position: absolute; inset: 0 0 -48px; z-index: -1; pointer-events: none;
  --mx: 50%; --my: 40%; --glow: 0;
  -webkit-mask-image: radial-gradient(ellipse 75% 75% at 50% 35%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 75% at 50% 35%, #000 25%, transparent 78%);
}
.hero__bg::before, .hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1.6px);
  background-size: 24px 24px; background-position: center 12px;
}
.hero__bg::before { --dot: var(--grid-dot); }
.hero__bg::after {
  --dot: var(--accent);
  background-image:
    radial-gradient(circle, var(--dot) 1.2px, transparent 1.8px),
    radial-gradient(circle 260px at var(--mx) var(--my), var(--accent-soft), transparent 70%);
  background-size: 24px 24px, 100% 100%;
  background-repeat: repeat, no-repeat;
  background-position: center 12px, 0 0;
  -webkit-mask-image: radial-gradient(circle 200px at var(--mx) var(--my), #000, transparent 72%);
  mask-image: radial-gradient(circle 200px at var(--mx) var(--my), #000, transparent 72%);
  opacity: var(--glow); transition: opacity .5s ease;
}

/* No cursor (phones, tablets) or reduced motion: a still glow behind the name instead. */
@media (hover: none), (prefers-reduced-motion: reduce) {
  /* Centred on the profile photo: container edge + gutter + half the 56px photo. */
  .hero__bg {
    --mx: max(calc(var(--gutter) + 28px), calc(50% - (var(--container) / 2) + var(--gutter) + 28px));
    --my: calc(clamp(40px, 8vw, 104px) + 28px);
    --glow: 0.85;
  }
}

.hero__intro { display: flex; align-items: center; gap: 14px; }
.hero__avatar {
  width: 56px; height: 56px; border-radius: 50%; object-fit: cover; flex: none;
  background: var(--bg-muted); box-shadow: 0 0 0 1px var(--border), 0 0 0 4px var(--bg), 0 0 0 5px var(--border);
}
.hero__avatar-btn {
  flex: none; padding: 0; border: 0; background: none; border-radius: 50%; cursor: zoom-in;
  transition: transform .25s cubic-bezier(.2, .7, .2, 1);
}
.hero__avatar-btn:hover { transform: scale(1.08); }
.hero__avatar-btn:hover .hero__avatar { box-shadow: 0 0 0 1px var(--border), 0 0 0 4px var(--bg), 0 0 0 5px var(--accent); }
.hero__avatar { transition: box-shadow .25s; }

.photo-viewer {
  border: 0; padding: 0; background: transparent; color: #fafaf9; overflow: visible;
  max-width: 100vw; max-height: 100vh; width: 100%; height: 100%;
}
.photo-viewer::backdrop { background: rgb(12 10 9 / 0.85); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.photo-viewer__figure {
  display: grid; place-content: center; justify-items: center; gap: 20px;
  width: 100%; height: 100%; margin: 0; padding: 24px; text-align: center; outline: none;
}
.photo-viewer__img {
  width: min(480px, 80vw, 70vh); height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 50%;
  background: var(--bg-muted); box-shadow: 0 30px 80px -20px rgb(0 0 0 / 0.6);
}
.photo-viewer figcaption { line-height: 1.4; }
.photo-viewer figcaption strong { display: block; font-size: 1.125rem; font-weight: 600; }
.photo-viewer figcaption span { font-size: 0.9375rem; color: #a8a29e; }
.photo-viewer__close { position: fixed; top: 16px; right: 16px; color: #fafaf9; border-color: rgb(255 255 255 / .25); }
.photo-viewer__close:hover { background: rgb(255 255 255 / .1); }

.photo-viewer[open] .photo-viewer__img { animation: photo-zoom-in .4s cubic-bezier(.2, .8, .2, 1); }
.photo-viewer[open] figcaption { animation: photo-fade-in .4s .1s both; }
.photo-viewer[open]::backdrop { animation: photo-fade-in .3s; }
.photo-viewer.is-closing .photo-viewer__img { animation: photo-zoom-out .2s ease-in forwards; }
.photo-viewer.is-closing figcaption, .photo-viewer.is-closing::backdrop { animation: photo-fade-out .2s forwards; }
@keyframes photo-zoom-in { from { transform: scale(.15); opacity: 0; } }
@keyframes photo-zoom-out { to { transform: scale(.15); opacity: 0; } }
@keyframes photo-fade-in { from { opacity: 0; } }
@keyframes photo-fade-out { to { opacity: 0; } }

.hero__name { font-size: 1rem; font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; }
.hero__role { margin: 0; font-size: 0.9375rem; color: var(--fg-subtle); line-height: 1.4; }

.hero__title {
  font-size: clamp(2.5rem, 7vw, 5.25rem); line-height: 1.02; letter-spacing: -0.045em; font-weight: 650;
  margin: clamp(28px, 4vw, 44px) 0 0; max-width: 18ch; text-wrap: balance;
}

.hero__body { display: grid; gap: 32px; margin-top: clamp(24px, 3vw, 36px); }
.hero__bio { font-size: clamp(1.0625rem, 1.6vw, 1.1875rem); color: var(--fg-muted); max-width: 58ch; margin: 0; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero__availability { margin: 0 0 0 12px; padding-left: 20px; border-left: 1px solid var(--border-strong); font-size: 0.875rem; line-height: 1.4; color: var(--fg-subtle); }

.socials { display: flex; gap: 8px; }

.stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(48px, 7vw, 80px); border-top: 1px solid var(--border);
}
.stat { padding: 24px 0 0; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--border); margin-left: -1px; }
.stat strong { display: block; font-size: clamp(1.75rem, 3.6vw, 2.5rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.1; }
.stat span { font-size: 0.875rem; color: var(--fg-subtle); }

@media (max-width: 640px) {
  .hero__availability { flex-basis: 100%; margin: 4px 0 0; padding: 0; border: 0; }
}
@media (max-width: 480px) {
  .stat + .stat { padding-left: 16px; }
  .stat span { font-size: 0.8125rem; }
  .hero__actions .btn { flex: 1 1 auto; }
}

/* --------------------------------------------------------------------------
   Projects
   -------------------------------------------------------------------------- */

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 32px); }
.project-grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 960px) { .project-grid--three { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .project-grid, .project-grid--three { grid-template-columns: 1fr; } }

.project-card { display: flex; flex-direction: column; gap: 18px; }
.project-card__media {
  position: relative; overflow: hidden; border-radius: var(--radius);
  aspect-ratio: 16 / 10; background: var(--bg-muted); border: 1px solid var(--border);
}
.project-card__media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.project-card:hover .project-card__media img { transform: scale(1.035); }
.project-card__media .placeholder { display: grid; place-items: center; height: 100%; color: var(--fg-subtle); font-size: 2.5rem; font-weight: 650; letter-spacing: -0.04em; }
.project-card__arrow {
  position: absolute; right: 14px; top: 14px; display: grid; place-items: center; width: 40px; height: 40px;
  border-radius: 50%; background: var(--bg-elevated); color: var(--fg); box-shadow: var(--shadow);
  opacity: 0; transform: translate(-4px, 4px); transition: opacity .25s, transform .25s;
}
.project-card:hover .project-card__arrow, .project-card:focus-visible .project-card__arrow { opacity: 1; transform: none; }
.project-card__meta { display: flex; align-items: center; gap: 10px; font-size: 0.8125rem; color: var(--fg-subtle); margin-bottom: 6px; }
.project-card__meta .sep { width: 3px; height: 3px; border-radius: 50%; background: currentColor; }
.project-card__title { font-size: 1.25rem; transition: color .2s; }
.project-card:hover .project-card__title { color: var(--accent); }
.project-card__tagline { color: var(--fg-muted); margin: 6px 0 0; font-size: 0.9375rem; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.filter {
  height: 38px; display: inline-flex; align-items: center; padding: 0 16px; border-radius: 999px;
  border: 1px solid var(--border); font-size: 0.875rem; font-weight: 500; color: var(--fg-muted); transition: all .2s;
}
.filter:hover { border-color: var(--border-strong); color: var(--fg); }
.filter[aria-current="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

.pagination { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 64px; }
.pagination a, .pagination span {
  display: grid; place-items: center; min-width: 40px; height: 40px; padding: 0 12px; border-radius: 999px;
  border: 1px solid var(--border); font-size: 0.875rem; font-weight: 500; color: var(--fg-muted);
}
.pagination a:hover { border-color: var(--fg); color: var(--fg); }
.pagination [aria-current="page"] { background: var(--fg); border-color: var(--fg); color: var(--bg); }
.pagination .is-disabled { opacity: .4; }

.empty {
  padding: 64px 24px; text-align: center; border: 1px dashed var(--border-strong); border-radius: var(--radius);
  color: var(--fg-muted);
}

/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */

.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.service { padding: 32px 28px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); transition: background-color .25s; }
.service:hover { background: var(--bg-elevated); }
.service__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); margin-bottom: 20px; }
.service h3 { font-size: 1.125rem; margin-bottom: 8px; }
.service p { color: var(--fg-muted); font-size: 0.9375rem; margin: 0; }
@media (max-width: 960px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .services { grid-template-columns: 1fr; } .service { padding: 28px 20px; } }

/* --------------------------------------------------------------------------
   About & experience
   -------------------------------------------------------------------------- */

.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); }
.about__aside { position: sticky; top: calc(var(--header-h) + 32px); align-self: start; }
.about__skills { margin-top: 40px; }
.about__skills h3, .timeline-title { font-size: 0.875rem; font-weight: 600; letter-spacing: 0; color: var(--fg); margin-bottom: 14px; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; } .about__aside { position: static; } }

.timeline { list-style: none; margin: 48px 0 0; padding: 0; border-top: 1px solid var(--border); }
.timeline__item { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--border); }
.timeline__dates { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--fg-subtle); padding-top: 3px; }
.timeline__role { font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.01em; }
.timeline__company { color: var(--fg-muted); }
.timeline__desc { color: var(--fg-muted); font-size: 0.9375rem; margin: 8px 0 0; }
@media (max-width: 600px) { .timeline__item { grid-template-columns: 1fr; gap: 6px; } }

/* --------------------------------------------------------------------------
   CTA & footer
   -------------------------------------------------------------------------- */

.cta {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  padding: clamp(40px, 7vw, 88px) clamp(24px, 6vw, 72px);
  background: var(--fg); color: var(--bg);
}
.cta::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%); opacity: .35; pointer-events: none;
}
.cta .eyebrow { color: color-mix(in srgb, var(--bg) 60%, var(--fg)); }
.cta h2 { font-size: clamp(2rem, 5vw, 3.5rem); max-width: 16ch; letter-spacing: -0.035em; }
.cta p { color: color-mix(in srgb, var(--bg) 70%, var(--fg)); max-width: 48ch; margin: 18px 0 32px; font-size: 1.0625rem; }
.cta__actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px; }
.cta .btn--primary { background: var(--bg); color: var(--fg); }
.cta .btn--primary:hover { background: var(--accent); color: var(--on-accent); }
.cta .btn--ghost { color: var(--bg); border-color: color-mix(in srgb, var(--bg) 30%, var(--fg)); }
.cta .btn--ghost:hover { border-color: var(--bg); }

.site-footer { padding-block: 40px; border-top: 1px solid var(--border); margin-top: var(--section); }
.site-footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer p { margin: 0; font-size: 0.875rem; color: var(--fg-subtle); }

/* --------------------------------------------------------------------------
   Page header, project detail
   -------------------------------------------------------------------------- */

.page-head { padding-block: clamp(48px, 8vw, 96px) clamp(32px, 5vw, 56px); }
.page-head h1 { font-size: clamp(2.25rem, 5.6vw, 4rem); letter-spacing: -0.04em; max-width: 18ch; }
.page-head .lead { margin-top: 18px; }

.back-link { display: flex; width: max-content; align-items: center; gap: 8px; font-size: 0.875rem; font-weight: 500; color: var(--fg-muted); margin-bottom: 32px; transition: color .2s; }
.back-link:hover { color: var(--fg); }
.back-link:hover .icon { transform: translateX(-3px); }
.back-link .icon { transition: transform .2s; }

.project-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; padding-block: 24px; margin-block: 40px; border-block: 1px solid var(--border); }
.project-facts dt { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-subtle); margin-bottom: 8px; }
.project-facts dd { margin: 0; font-weight: 500; }
.project-links { display: flex; flex-wrap: wrap; gap: 10px; }

.project-cover { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); background: var(--bg-muted); box-shadow: var(--shadow-lg); }
.project-cover img { width: 100%; }

/* Demo video: a poster with a play button that swaps in YouTube on click. */
.icon--fill { fill: currentColor; stroke: none; }
.video { position: relative; aspect-ratio: 16 / 9; scroll-margin-top: calc(var(--header-h) + 24px); }
.video__poster, .video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video__poster { display: block; cursor: pointer; }
.video__poster img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .7, .2, 1), filter .3s; }
.video__poster::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgb(12 10 9 / .55), transparent 55%); }
.video__poster:hover img { transform: scale(1.02); filter: brightness(.92); }
.video__play {
  position: absolute; left: 50%; top: 50%; z-index: 1; display: grid; place-items: center;
  width: 84px; height: 84px; border-radius: 50%; transform: translate(-50%, -50%);
  background: var(--accent); color: var(--on-accent); padding-left: 5px;
  box-shadow: 0 0 0 10px rgb(251 191 36 / .22), 0 20px 40px -12px rgb(0 0 0 / .5);
  transition: transform .25s cubic-bezier(.2, .7, .2, 1), box-shadow .25s;
}
.video__poster:hover .video__play, .video__poster:focus-visible .video__play {
  transform: translate(-50%, -50%) scale(1.08); box-shadow: 0 0 0 16px rgb(251 191 36 / .18), 0 20px 40px -12px rgb(0 0 0 / .5);
}
.video__label { position: absolute; left: 24px; bottom: 20px; z-index: 1; color: #fafaf9; font-weight: 600; font-size: 0.9375rem; }
@media (max-width: 600px) {
  .video__play { width: 60px; height: 60px; box-shadow: 0 0 0 6px rgb(251 191 36 / .22); }
  .video__play .icon { width: 22px; height: 22px; }
  .video__label { left: 16px; bottom: 12px; font-size: 0.875rem; }
}

.project-card__badge {
  position: absolute; left: 14px; top: 14px; z-index: 1; display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 11px; border-radius: 999px; font-size: 0.75rem; font-weight: 600;
  background: rgb(12 10 9 / .78); color: #fafaf9; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.project-card__badge .icon { color: var(--accent); }

.project-body { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 6vw, 96px); padding-block: clamp(56px, 8vw, 96px); }
@media (max-width: 860px) { .project-body { grid-template-columns: 1fr; } }

.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gallery__item { margin: 0; }
.gallery__item:first-child:nth-last-child(odd), .gallery__item:only-child { grid-column: 1 / -1; }
.gallery__btn {
  display: block; width: 100%; padding: 0; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--bg-muted); cursor: zoom-in;
}
.gallery__btn img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; transition: transform .5s; }
.gallery__btn:hover img { transform: scale(1.02); }
.gallery figcaption { margin-top: 10px; font-size: 0.875rem; color: var(--fg-subtle); }
@media (max-width: 600px) { .gallery { grid-template-columns: 1fr; } }

.lightbox {
  border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100%; height: 100%;
}
.lightbox::backdrop { background: rgb(12 10 9 / 0.92); backdrop-filter: blur(6px); }
.lightbox__inner { display: grid; place-items: center; width: 100%; height: 100%; padding: 64px 16px 32px; }
.lightbox img { max-width: min(1400px, 100%); max-height: calc(100vh - 120px); width: auto; border-radius: var(--radius-sm); }
.lightbox__close { position: fixed; top: 16px; right: 16px; color: #fafaf9; border-color: rgb(255 255 255 / .25); }
.lightbox__nav { position: fixed; top: 50%; transform: translateY(-50%); color: #fafaf9; border-color: rgb(255 255 255 / .25); }
.lightbox__nav--prev { left: 16px; }
.lightbox__nav--next { right: 16px; }
.lightbox .icon-btn:hover { background: rgb(255 255 255 / .1); }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */

.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }

.contact-list { list-style: none; padding: 0; margin: 32px 0; display: grid; gap: 4px; }
.contact-list a, .contact-list .contact-item {
  display: flex; align-items: center; gap: 14px; padding: 14px; margin-inline: -14px; border-radius: var(--radius);
  transition: background-color .2s;
}
.contact-list a:hover { background: var(--bg-muted); }
.contact-list .icon-wrap { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--fg-muted); flex: none; }
.contact-list small { display: block; font-size: 0.8125rem; color: var(--fg-subtle); line-height: 1.3; }
.contact-list strong { font-weight: 500; word-break: break-word; }

.card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 40px); box-shadow: var(--shadow); }

.form { display: grid; gap: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 600px) { .form__row { grid-template-columns: 1fr; } }
.field label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong);
  background: var(--bg); color: var(--fg); font: inherit; font-size: 1rem; transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 160px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--fg-subtle); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.form__footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.form__note { font-size: 0.8125rem; color: var(--fg-subtle); margin: 0; }

/* --------------------------------------------------------------------------
   Toasts
   -------------------------------------------------------------------------- */

.toasts { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 60; display: grid; gap: 8px; width: min(440px, calc(100% - 32px)); }
.toast {
  display: flex; align-items: flex-start; gap: 12px; padding: 14px 16px; border-radius: var(--radius);
  background: var(--fg); color: var(--bg); box-shadow: var(--shadow-lg); font-size: 0.9375rem; line-height: 1.45;
  animation: toast-in .35s cubic-bezier(.2, .7, .2, 1);
}
.toast .icon { margin-top: 1px; color: var(--success); }
.toast--error .icon { color: var(--danger); }
.toast__close { margin-left: auto; background: none; border: 0; color: inherit; opacity: .6; cursor: pointer; padding: 0; }
.toast__close:hover { opacity: 1; }
.toast.is-leaving { opacity: 0; transform: translateY(8px); transition: opacity .3s, transform .3s; }
@keyframes toast-in { from { opacity: 0; transform: translateY(12px); } }

/* --------------------------------------------------------------------------
   Motion
   -------------------------------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}