/* ============================================================
   ANTONIONI — portfolio
   Original implementation. Design tokens measured from reference
   observation; see site-docs/ for the audit.
   ============================================================ */

:root {
  --base-100: #fff;
  --base-200: #999;
  --base-300: #343434;
  --base-400: #212121;
  --base-500: #000;
  --bg: #f4f4f2;
  --fg: #1a1a1a;
  --muted: #999;
  /* motion */
  --ease-curtain: cubic-bezier(0.87, 0, 0.13, 1);
  --t-curtain: 1.2s;
  --t-theme: 0.4s;
  --t-modal: 0.35s;
  --t-ctrl: 0.2s;
  --t-caption: 0.3s;
}

html.dark-theme {
  --bg: #0f0f0f;
  --fg: #f4f4f2;
  --muted: #777;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overscroll-behavior: none;
}

body {
  font-family: "Helvetica Neue", -apple-system, "SF Pro Display", "Inter", Arial, sans-serif;
  font-size: 16px;
  background: var(--bg);
  color: var(--fg);
  transition: background var(--t-theme) ease, color var(--t-theme) ease;
  overflow: hidden; /* virtual scroll drives everything */
  -webkit-font-smoothing: antialiased;
}

img { display: block; user-select: none; -webkit-user-drag: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* ---------- preloader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 100;
  background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px;
  transition: transform var(--t-curtain) var(--ease-curtain), background 0.8s ease-in-out;
}
.loader.lifted { transform: translateY(-100%); }
.loader__logo {
  width: 300px; max-width: 60vw;
  opacity: 0;
  animation: logoFill 0.9s ease forwards 0.15s;
}
html.dark-theme .loader__logo { filter: invert(1); }
.loader__tag {
  font-size: 13px; font-weight: 700; letter-spacing: 0.06em;
  opacity: 0;
  animation: logoFill 0.9s ease forwards 0.35s;
}
@keyframes logoFill { from { opacity: 0; } to { opacity: 1; } }

.content { opacity: 0; transition: opacity 0.25s ease; }
.content.ready { opacity: 1; }

/* ---------- header ---------- */
.hdr {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 48px 0;
  mix-blend-mode: difference;
  color: #fff;
  pointer-events: none;
}
.hdr > * { pointer-events: auto; }
.hdr__logo img { height: 26px; width: auto; filter: invert(1); }
.hdr__clock, .hdr__mail {
  font-size: 14px; font-weight: 700; letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.hdr__theme { font-size: 14px; font-weight: 700; display: flex; gap: 10px; align-items: center; }
.hdr__theme .sep { color: var(--muted); font-weight: 400; }
.theme-btn { transition: color var(--t-ctrl) ease, opacity var(--t-ctrl) ease; opacity: 0.45; }
.theme-btn.active { opacity: 1; }
.theme-btn:hover { opacity: 1; }
.menu-btn {
  font-size: 14px; font-weight: 700; letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 8px;
}
.menu-btn .dot {
  width: 11px; height: 11px; border-radius: 50%;
  border: 1.5px solid currentColor;
  transition: background var(--t-ctrl) ease;
}
.menu-btn[aria-expanded="true"] .dot { background: currentColor; }

/* ---------- footer ---------- */
.ftr {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px 22px;
  font-size: 14px; font-weight: 700;
}
.ftr__socials { display: flex; gap: 18px; align-items: center; }
.ftr__socials a { color: var(--muted); transition: color var(--t-ctrl) ease; display: flex; }
.ftr__socials a:hover { color: var(--fg); }
.ftr__socials svg { width: 17px; height: 17px; }
.ftr__mode { display: flex; gap: 10px; align-items: center; }
.mode-btn { color: var(--muted); transition: color var(--t-ctrl) ease; font-weight: 700; }
.mode-btn.active, .mode-btn:hover { color: var(--fg); }
.ftr__mode .sep { color: var(--muted); font-weight: 400; }
.ftr__copy { color: var(--fg); font-weight: 500; font-size: 13.5px; }
.ftr__moon { display: none; }

/* ---------- LIST carousel ---------- */
.carousel {
  position: fixed; inset: 0;
  display: flex; align-items: center;
  visibility: visible;
}
.view-grid .carousel { visibility: hidden; }
.track {
  display: flex; align-items: center;
  will-change: transform;
}
.slide {
  flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  padding: 0 14vw 0 0;
}
.slide img {
  max-height: 60vh;
  max-width: 62vw;
  width: auto; height: auto;
  object-fit: contain;
}
.caption {
  position: fixed; left: 0; right: 0; bottom: 12.5vh;
  text-align: center;
  font-size: 16px; font-weight: 700;
  transition: opacity var(--t-caption) ease;
  pointer-events: none;
}
.caption.fade { opacity: 0; }
.view-grid .caption { opacity: 0; }
.car-arrow {
  position: fixed; top: 50%; transform: translateY(-50%);
  z-index: 30; padding: 14px; color: var(--muted);
  display: none;
}
.car-arrow:hover { color: var(--fg); }
.car-arrow.prev { left: 6px; } .car-arrow.next { right: 6px; }
.car-arrow svg { width: 22px; height: 22px; }

/* ---------- GRID ---------- */
.gridview {
  position: fixed; inset: 0;
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--t-theme) ease;
}
.view-grid .gridview { visibility: visible; opacity: 1; }
.grid-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 3.2vw;
  padding: 90px 48px 120px;
  align-items: start;
}
.gcol { display: flex; flex-direction: column; gap: 4.5vh; will-change: transform; }
.gitem { cursor: pointer; }
.gitem img {
  width: 100%; height: auto;
  transition: opacity var(--t-ctrl) ease;
}
.gitem:hover img { opacity: 0.85; }
.gitem { width: 100%; }
.gitem:nth-child(even) { width: 92%; align-self: flex-end; }

/* ---------- modal ---------- */
.modal {
  position: fixed; inset: 0; z-index: 60;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(2px);
  opacity: 0; visibility: hidden;
  transition: opacity var(--t-modal) ease, visibility 0s linear var(--t-modal);
}
.modal.open { opacity: 1; visibility: visible; transition: opacity var(--t-modal) ease; }
.modal img {
  max-width: 46vw; max-height: 62vh;
  box-shadow: 0 0 80px rgba(0,0,0,0.25);
}
.modal__cap {
  position: absolute; left: 0; right: 0;
  top: calc(50% + 34vh);
  text-align: center; font-size: 15px; font-weight: 700;
  transform: translateY(-50%);
}
.modal__close {
  position: absolute; top: 96px; right: 48px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 8px;
  color: var(--fg);
  transition: color var(--t-ctrl) ease;
}
.modal__close:hover { color: var(--muted); }
.modal__nav {
  position: absolute; bottom: 22px;
  font-size: 15px; font-weight: 700;
  transition: opacity 0.3s ease;
}
.modal__nav:hover { opacity: 0.6; }
.modal__nav.prev { left: 48px; } .modal__nav.next { right: 48px; }

/* ---------- menu overlay ---------- */
.menu {
  position: fixed; inset: 0; z-index: 50;
  visibility: hidden; opacity: 0;
  transition: opacity 0.45s ease, visibility 0s linear 0.45s;
  background: color-mix(in srgb, var(--bg) 30%, transparent);
  backdrop-filter: blur(26px) brightness(0.55);
  -webkit-backdrop-filter: blur(26px) brightness(0.55);
}
html:not(.dark-theme) .menu { backdrop-filter: blur(26px) brightness(1.05); -webkit-backdrop-filter: blur(26px) brightness(1.05); }
.menu.open { visibility: visible; opacity: 1; transition: opacity 0.45s ease; }
.menu__nav {
  position: absolute; top: 50%; left: 48px; right: 48px;
  transform: translateY(-50%);
  display: flex; gap: 5.2vw;
  align-items: center; justify-content: center;
}
.mgroup { position: relative; }
.mgroup__label {
  font-size: 24px; font-weight: 700; letter-spacing: 0.01em;
  text-transform: uppercase;
  display: flex; align-items: center; gap: 10px;
  opacity: 0; transform: translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease, color var(--t-ctrl) ease;
  color: var(--fg);
}
.menu.open .mgroup__label { opacity: 1; transform: none; }
.mgroup__label:hover { color: var(--muted); }
.mgroup__label .x { font-size: 16px; font-weight: 400; opacity: 0; transition: opacity var(--t-ctrl) ease; }
.mgroup.expanded .mgroup__label .x { opacity: 1; }
.mgroup:not(.single) .mgroup__label .plus { font-size: 16px; font-weight: 400; }
.mgroup.expanded .mgroup__label .plus { display: none; }
.mgroup__links {
  position: absolute; top: 100%; left: 0;
  padding-top: 16px;
  display: grid; gap: 12px;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height 0.35s ease, opacity 0.35s ease;
  white-space: nowrap;
}
.mgroup.expanded .mgroup__links { max-height: 60vh; opacity: 1; }
.mgroup__links a {
  font-size: 15px; font-weight: 500; letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--fg);
  transition: color var(--t-ctrl) ease;
}
.mgroup__links a:hover { color: var(--muted); }
.menu__foot {
  position: absolute; left: 48px; right: 48px; bottom: 22px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid color-mix(in srgb, var(--fg) 25%, transparent);
  padding-top: 16px;
  font-size: 13.5px;
}
.menu__foot .socials { display: flex; gap: 18px; }
.menu__foot .socials svg { width: 17px; height: 17px; }
.menu__foot a { transition: color var(--t-ctrl) ease; }
.menu__foot a:hover { color: var(--muted); }

/* ---------- video slide (polaroids) ---------- */
.slide video { max-height: 60vh; max-width: 62vw; }

/* ---------- terms page ---------- */
.page {
  position: fixed; inset: 0; overflow-y: auto;
  padding: 140px 48px 120px;
}
.page h1 { font-size: 34px; margin-bottom: 32px; letter-spacing: -0.01em; }
.page h2 { font-size: 20px; margin: 34px 0 12px; }
.page p { max-width: 62ch; line-height: 1.55; font-size: 15.5px; color: color-mix(in srgb, var(--fg) 88%, transparent); margin-bottom: 12px; }

/* ---------- responsive ---------- */
@media (max-width: 820px) {
  .hdr { padding: 16px 20px 0; }
  .ftr { padding: 0 20px 20px; }
  .hdr__mail, .hdr__theme { display: none; }
  .hdr__logo img { height: 20px; }
  .slide img, .slide video { max-width: 82vw; max-height: 52vh; }
  .slide { padding-right: 24vw; }
  .caption { bottom: 15vh; font-size: 15px; }
  .car-arrow { display: block; }
  .ftr__moon { display: block; position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(-34px); color: var(--muted); }
  .ftr__moon svg { width: 18px; height: 18px; }
  .grid-cols { grid-template-columns: repeat(2, 1fr); padding: 80px 20px 110px; }
  .menu__nav { flex-direction: column; gap: 26px; top: 20%; transform: none; align-items: flex-start; justify-content: flex-start; }
  .mgroup__links { position: static; }
  .modal img { max-width: 88vw; max-height: 56vh; }
  .modal__close { top: 70px; right: 20px; }
  .modal__nav.prev { left: 20px; } .modal__nav.next { right: 20px; }
}