/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0e0e0e;
  --white: #f5f4f0;
  --font: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --nav-h: 52px;
  --footer-h: 52px;
  --gap: 3px;
}

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* ─── Shared text ────────────────────────────────────────── */
.site-name, .contact-link, .tagline, .ailab-btn, .overlay-title, .project-title {
  font-family: var(--font);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--black);
}

/* ─── Header ─────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  background: transparent;
}

.back-link { cursor: pointer; transition: opacity 0.2s; }
.back-link:hover, .contact-link:hover, .ailab-btn:hover { opacity: 0.45; }

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--footer-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  background: transparent;
  pointer-events: none;
}
footer > * { pointer-events: auto; }

/* ─── Landing Grid ───────────────────────────────────────── */
main#grid {
  margin-top: var(--nav-h);
  padding-bottom: var(--footer-h);
  columns: 3;
  column-gap: var(--gap);
  padding-left: var(--gap);
  padding-right: var(--gap);
  padding-top: var(--gap);
  flex: 1;
}

.grid-item {
  display: block;
  position: relative;
  overflow: hidden;
  background: #d8d6d0;
  break-inside: avoid;
  margin-bottom: var(--gap);
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.grid-item-inner { width: 100%; position: relative; }

.grid-item img.poster {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

.grid-item:hover img.poster { transform: scale(1.03); }

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14,14,14,0);
  transition: background 0.35s ease, backdrop-filter 0.35s ease;
}

.grid-item:hover .overlay {
  background: rgba(14,14,14,0.32);
  backdrop-filter: blur(6px) brightness(0.85);
  -webkit-backdrop-filter: blur(6px) brightness(0.85);
}

.overlay-title {
  color: #f5f4f0;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease 0.05s, transform 0.3s ease 0.05s;
  text-align: center;
  padding: 0 16px;
}

.grid-item:hover .overlay-title { opacity: 1; transform: translateY(0); }

/* ─── Project Page ───────────────────────────────────────── */
body.project-page main {
  margin-top: var(--nav-h);
  padding: 48px 24px calc(var(--footer-h) + 48px);
  width: 100%;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  flex: 1;
  box-sizing: border-box;
}

.project-title {
  text-align: center;
  margin-bottom: 40px;
}

/* ─── Video embeds ───────────────────────────────────────── */
.videos-container { width: 100%; }

.video-wrap {
  width: 100%;
  margin-bottom: 48px;
  position: relative;
}

.video-wrap::after {
  content: '';
  display: block;
  padding-bottom: 56.25% !important;
}

.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
  border: none;
}

.video-wrap.ratio-16-9::after { padding-bottom: 56.25% !important; }
.video-wrap.ratio-9-16 { max-width: 440px; margin-left: auto; margin-right: auto; }
.video-wrap.ratio-9-16::after { padding-bottom: 177.78% !important; }
.video-wrap.ratio-1-1 { max-width: 600px; margin-left: auto; margin-right: auto; }
.video-wrap.ratio-1-1::after { padding-bottom: 100% !important; }
.video-wrap.ratio-4-5 { max-width: 560px; margin-left: auto; margin-right: auto; }
.video-wrap.ratio-4-5::after { padding-bottom: 125% !important; }

/* ─── Photo masonry ──────────────────────────────────────── */
.photo-masonry {
  columns: 2;
  column-gap: 24px;
}

.photo-masonry img {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 24px;
  break-inside: avoid;
}

.photo-masonry img:nth-child(3n+1) { margin-bottom: 36px; }
.photo-masonry img:nth-child(3n+2) { margin-bottom: 16px; }

/* ─── AI Lab gate ────────────────────────────────────────── */
.ailab-gate {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.ailab-gate-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 0 24px;
  max-width: 400px;
  width: 100%;
}

.ailab-gate-label {
  font-family: var(--font);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--black);
}

.ailab-gate-input {
  width: 100%;
  background: none;
  border: none;
  border-bottom: 0.5px solid rgba(14,14,14,0.3);
  padding: 10px 0;
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
  outline: none;
  text-align: center;
}
.ailab-gate-input::placeholder { color: #ccc; font-weight: 300; }
.ailab-gate-input:focus { border-bottom-color: var(--black); }

.ailab-gate-btn {
  background: none;
  border: none;
  font-family: var(--font);
  font-weight: 700;
  font-size: 20px;
  color: var(--black);
  cursor: pointer;
  padding: 4px 0;
  transition: opacity 0.2s;
}
.ailab-gate-btn:hover { opacity: 0.45; }

.ailab-gate-error {
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #999;
  min-height: 16px;
}

.ailab-divider {
  width: 40px;
  height: 0.5px;
  background: rgba(14,14,14,0.15);
  margin: 16px 0;
}

.ailab-heading {
  font-family: var(--font);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--black);
  line-height: 2;
  margin-bottom: 16px;
}

.ailab-input {
  width: 100%;
  background: none;
  border: none;
  border-bottom: 0.5px solid rgba(14,14,14,0.2);
  padding: 8px 0;
  font-family: var(--font);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--black);
  outline: none;
  text-align: center;
  margin-bottom: 20px;
}
.ailab-input::placeholder { color: #bbb; }
.ailab-input:focus { border-bottom-color: var(--black); }

.ailab-submit {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  animation: pulse-triangle 2.4s ease-in-out infinite;
}

@keyframes pulse-triangle {
  0%   { opacity: 0.25; filter: hue-rotate(0deg); }
  25%  { opacity: 1;    filter: hue-rotate(80deg); }
  50%  { opacity: 0.5;  filter: hue-rotate(180deg); }
  75%  { opacity: 1;    filter: hue-rotate(280deg); }
  100% { opacity: 0.25; filter: hue-rotate(360deg); }
}

.ailab-sent {
  display: none;
  font-family: var(--font);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #aaa;
}

/* ─── AI Lab content ─────────────────────────────────────── */
.ailab-content {
  margin-top: var(--nav-h);
  padding: var(--gap) var(--gap) calc(var(--footer-h) + var(--gap));
}

.ailab-grid {
  columns: 3;
  column-gap: var(--gap);
}

.ailab-grid img,
.ailab-grid video {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: var(--gap);
  break-inside: avoid;
}

/* ─── Error ──────────────────────────────────────────────── */
.error { font-size: 12px; color: #9a9890; padding: 40px 0; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  main#grid { columns: 2; }
  .photo-masonry { columns: 1; }
  .ailab-grid { columns: 2; }
  body.project-page main { padding: 32px 16px calc(var(--footer-h) + 32px); }
  .site-name, .contact-link, .tagline, .ailab-btn, .overlay-title, .project-title { font-size: 11px; }
}

@media (max-width: 480px) {
  main#grid { columns: 1; }
  .ailab-grid { columns: 1; }
}