/* =========================================================
   CHT Studios — portfolio styles
   Colours come from his own PDF portfolio:
   slate #2a3039, warm grey #cecbca, and the mustard from his drone map.
   ========================================================= */

:root {
  --bg: #d6d3d1;          /* light mode: warm grey paper */
  --bg-2: #c9c6c4;
  --ink: #1f242c;
  --ink-soft: #4a505a;
  --line: rgba(31, 36, 44, 0.18);
  --accent: #8f5d00;      /* darker mustard so text stays readable on grey */
  --accent-bg: #e0a12b;
  --card: #e4e2e0;
  --shadow: 0 20px 50px rgba(20, 24, 30, 0.18);

  --display: "Tektur", "Arial Black", system-ui, sans-serif;
  --mono: "Space Mono", ui-monospace, Consolas, monospace;
  --body: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;

  --pad: clamp(16px, 4vw, 56px);
  --radius: 4px;
}

/* Dark mode: the slate from his portfolio cover */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #2a3039;
    --bg-2: #232831;
    --ink: #ecebea;
    --ink-soft: #a9adb4;
    --line: rgba(236, 235, 234, 0.14);
    --accent: #e8a832;
    --card: #333a45;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  }
}
:root[data-theme="dark"] {
  --bg: #2a3039;
  --bg-2: #232831;
  --ink: #ecebea;
  --ink-soft: #a9adb4;
  --line: rgba(236, 235, 234, 0.14);
  --accent: #e8a832;
  --card: #333a45;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--body);
  overflow-x: hidden;
  transition: background-color .3s, color .3s;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
.mono { font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; font-size: 12px; }
.small { font-size: 11px; color: var(--ink-soft); }
.accent { color: var(--accent); }

/* Placeholders: deliberately loud so nobody forgets to replace them */
.ph {
  background: repeating-linear-gradient(45deg, rgba(224,161,43,.22) 0 6px, rgba(224,161,43,.08) 6px 12px);
  outline: 1px dashed var(--accent);
  padding: 0 .3em;
  border-radius: 2px;
}

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--ink); color: var(--bg); padding: 8px 12px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 24px;
  padding: 14px var(--pad);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__logo { font: 900 18px/1 var(--display); letter-spacing: .04em; text-decoration: none; }
.nav__logo span { color: var(--accent); margin: 0 2px; }
.nav__links { margin-left: auto; display: flex; gap: 22px; }
.nav__links a { font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; text-decoration: none; color: var(--ink-soft); }
.nav__links a:hover { color: var(--ink); }
.theme-btn {
  width: 36px; height: 36px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 50%;
  background: transparent; color: var(--ink); cursor: pointer;
}
.theme-btn:hover { border-color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(40px, 9vw, 120px) var(--pad) clamp(32px, 6vw, 72px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.hero__kicker { margin: 0; color: var(--ink-soft); }
.hero__title {
  margin: 0;
  font: 900 clamp(64px, 17vw, 260px)/.82 var(--display);
  letter-spacing: -.02em;
  text-transform: uppercase;
}
.hero__title .dot { color: var(--accent); }
.hero__intro { max-width: 520px; }
.hero__intro p { margin: 0 0 16px; color: var(--ink-soft); }
.hero__lede { font: 700 clamp(22px, 3vw, 30px)/1.2 var(--display); color: var(--ink) !important; text-transform: uppercase; }
.hero__index {
  list-style: none; margin: 0; padding: 18px 0 0;
  display: flex; flex-wrap: wrap; gap: 10px 28px;
  border-top: 2px solid var(--ink);
}
.hero__index span { color: var(--accent); font-weight: 700; margin-right: 6px; }

@media (min-width: 900px) {
  .hero { grid-template-columns: 1.6fr 1fr; align-items: end; }
  .hero__kicker, .hero__title { grid-column: 1 / -1; }
  .hero__index { grid-column: 1 / -1; }
}

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  background: var(--ink); color: var(--bg);
  font: 700 13px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em;
  text-decoration: none; border-radius: var(--radius);
  transition: transform .2s, background-color .2s;
}
.btn:hover { transform: translateY(-2px); background: var(--accent-bg); color: #1f242c; }

/* ---------- Ribbon (moving strip of thumbnails) ---------- */
.ribbon { overflow: hidden; border-block: 1px solid var(--line); padding: 14px 0; }
.ribbon__track { display: flex; gap: 14px; width: max-content; animation: slide 70s linear infinite; }
.ribbon__track img { height: clamp(110px, 16vw, 190px); width: auto; border-radius: var(--radius); }
@keyframes slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .ribbon__track { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Section heads ---------- */
section { scroll-margin-top: 70px; }
.section-title {
  margin: 0 0 28px;
  font: 900 clamp(34px, 6vw, 72px)/.95 var(--display);
  text-transform: uppercase; letter-spacing: -.01em;
}
.section-title .mono { display: block; font-size: 12px; color: var(--accent); margin-bottom: 10px; letter-spacing: .1em; }

/* ---------- Work ---------- */
.work { padding: clamp(56px, 9vw, 120px) var(--pad); }
.section-head { display: grid; gap: 8px; margin-bottom: 28px; }
.section-head .section-title { margin-bottom: 12px; }

.filters {
  display: flex; gap: 8px;
  overflow-x: auto; scrollbar-width: none;
  margin-inline: calc(var(--pad) * -1); padding: 4px var(--pad);
}
.filters::-webkit-scrollbar { display: none; }
.filter {
  flex: none;
  padding: 10px 16px;
  border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--ink);
  font: 700 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em;
  cursor: pointer; transition: background-color .2s, color .2s, border-color .2s;
}
.filter sup { color: var(--ink-soft); margin-left: 4px; font-size: 10px; }
.filter:hover { border-color: var(--ink); }
.filter[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.filter[aria-pressed="true"] sup { color: inherit; opacity: .7; }

/* Masonry grid built with CSS columns: keeps every piece at its real shape */
.grid { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 12px; }
@media (min-width: 760px) { .grid { columns: 3; column-gap: 16px; } }
@media (min-width: 1200px) { .grid { columns: 4; column-gap: 18px; } }

.tile { break-inside: avoid; margin-bottom: 12px; animation: pop .45s ease both; }
@media (min-width: 760px) { .tile { margin-bottom: 16px; } }
@keyframes pop { from { opacity: 0; transform: translateY(14px); } }
.tile[hidden] { display: none; }
.tile button {
  all: unset; display: block; width: 100%; cursor: zoom-in;
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: var(--card);
}
.tile img { width: 100%; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.tile button:hover img, .tile button:focus-visible img { transform: scale(1.04); }
.tile .label {
  position: absolute; inset: auto 0 0 0;
  padding: 28px 12px 10px;
  background: linear-gradient(transparent, rgba(15,18,24,.85));
  color: #fff; font: 600 14px/1.25 var(--body);
  opacity: 0; transform: translateY(8px); transition: opacity .25s, transform .25s;
}
.tile .label small { display: block; font: 400 10px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .1em; color: #e8a832; margin-top: 3px; }
.tile button:hover .label, .tile button:focus-visible .label { opacity: 1; transform: none; }
@media (hover: none) {
  .tile .label { opacity: 1; transform: none; padding: 20px 10px 8px; font-size: 11px; }
  .tile .label small { display: none; }
}
.tile .play {
  position: absolute; top: 10px; right: 10px;
  padding: 6px 9px; border-radius: 999px;
  background: var(--accent-bg); color: #1f242c; font: 700 10px/1 var(--mono); letter-spacing: .1em;
}

/* ---------- About ---------- */
.about { padding: clamp(56px, 9vw, 120px) var(--pad); background: var(--bg-2); }
.about__grid { display: grid; gap: 32px; }
@media (min-width: 900px) { .about__grid { grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; } }
.about__photo { margin: 0; max-width: 460px; }
@media (min-width: 900px) { .about__photo { max-width: none; } }
.about__photo img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.about__photo figcaption { margin-top: 10px; color: var(--ink-soft); }
.about__big { font: 700 clamp(22px, 2.8vw, 34px)/1.2 var(--display); margin: 0 0 24px; text-transform: uppercase; }
.about__text p { color: var(--ink-soft); max-width: 60ch; }
.about__text .about__big { color: var(--ink); }
.stats { display: flex; gap: 36px; margin: 32px 0 20px; padding: 20px 0 0; border-top: 2px solid var(--ink); }
.stats div { margin: 0; }
.about__text .about__pitch {
  margin: 8px 0 0; color: var(--accent);
  font: 700 clamp(18px, 2vw, 24px)/1.25 var(--display); text-transform: uppercase;
}
.stats dt { color: var(--ink-soft); font-size: 11px; }
.stats dd { margin: 4px 0 0; font: 900 clamp(40px, 6vw, 64px)/1 var(--display); }

/* ---------- Contact ---------- */
.contact { padding: clamp(64px, 11vw, 160px) var(--pad); }
.contact__big { font: 700 clamp(22px, 3vw, 34px)/1.2 var(--display); margin: 0 0 24px; max-width: 22ch; text-transform: uppercase; color: var(--ink-soft); }
.contact__mail {
  display: inline-block;
  font: 900 clamp(28px, 6.5vw, 88px)/1 var(--display);
  text-decoration: none; word-break: break-word;
  border-bottom: 4px solid var(--accent);
  padding-bottom: 6px; transition: color .2s;
}
.contact__mail:hover { color: var(--accent); }
.contact__links { list-style: none; padding: 0; margin: 40px 0 0; display: grid; gap: 12px; color: var(--ink-soft); }
.contact__links a { text-decoration: none; }

.footer {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 24px var(--pad); border-top: 1px solid var(--line); color: var(--ink-soft);
}
.footer a { text-decoration: none; }

/* ---------- Lightbox ---------- */
.lightbox {
  width: 100vw; height: 100dvh; max-width: none; max-height: none;
  margin: 0; padding: 0; border: 0;
  background: rgba(14, 16, 20, .96); color: #ecebea;
}
.lightbox[open] { display: grid; grid-template-columns: auto 1fr auto; align-items: center; }
.lightbox::backdrop { background: rgba(14,16,20,.6); }
.lb-figure { margin: 0; height: 100dvh; display: grid; grid-template-rows: 1fr auto; padding: 56px 0 16px; min-width: 0; }
.lb-media { position: relative; min-height: 0; }
.lb-media img, .lb-media video {
  position: absolute; inset: 0; margin: auto;
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  object-fit: contain; border-radius: 2px;
}
.lb-caption { display: flex; flex-wrap: wrap; gap: 6px 16px; justify-content: center; align-items: baseline; padding: 14px 16px 0; text-align: center; }
.lb-title { font: 700 16px/1.3 var(--display); text-transform: uppercase; }
.lb-meta { color: #e8a832; font-size: 11px; }
.lb-shop {
  font-size: 11px; color: #1f242c; background: #e8a832;
  padding: 6px 10px; border-radius: 999px; text-decoration: none;
}
.lb-shop[hidden] { display: none; }
.lb-shop:hover { background: #fff; }
.lb-btn {
  width: 48px; height: 48px; margin: 0 8px;
  border: 1px solid rgba(255,255,255,.25); border-radius: 50%;
  background: rgba(255,255,255,.04); color: #fff; font-size: 18px; cursor: pointer;
}
.lb-btn:hover { background: #e8a832; color: #1f242c; border-color: #e8a832; }
.lb-close { position: absolute; top: 10px; right: 6px; z-index: 2; }
@media (max-width: 640px) {
  .lightbox[open] { grid-template-columns: 1fr; }
  .lb-prev, .lb-next { position: absolute; bottom: 12px; z-index: 2; }
  .lb-prev { left: 12px; } .lb-next { right: 12px; }
  .lb-figure { padding: 60px 8px 76px; }
  .nav__links { gap: 14px; }
  .nav__links a { font-size: 11px; }
  .nav { gap: 12px; }
}