/* ==========================================================
   shared.css — TMR/IN common styles (used by all pages)
   ========================================================== */

/* ---------- Design tokens ---------- */
:root {
  --ink: #111111;
  --paper: #F5F4F0;
  --white: #FFFFFF;
  --coral: #FF6B50;
  --gray-2: #888888;
  --gray-3: #BBBBBB;
  --line: #E8E8E8;
  --ink-on-dark: #EFEFEF;

  --grotesk: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'Space Mono', ui-monospace, monospace;
  --slash: 'Helvetica Neue', 'Helvetica', 'Arial Black', sans-serif;

  --gutter: clamp(20px, 4vw, 56px);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--grotesk);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Layout ---------- */
.wrap {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section { position: relative; }

/* ---------- Top bar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 18px var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
  color: var(--ink);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.topbar-logo { display: flex; align-items: center; }
.topbar-logo img { height: 22px; width: auto; display: block; }
.topbar nav {
  display: flex; gap: 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.topbar nav a { opacity: 0.6; transition: opacity .2s; }
.topbar nav a:hover { opacity: 1; }

/* ---------- Nav dropdown ---------- */
.nav-item { position: relative; }
.nav-item > a { display: flex; align-items: center; gap: 5px; }
.nav-item > a .nav-chevron { transition: transform .2s; opacity: 0.5; }
.nav-item:hover > a .nav-chevron,
.nav-item.open > a .nav-chevron { transform: rotate(180deg); opacity: 1; }
.nav-dropdown {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-6px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
  position: absolute; top: calc(100% + 8px); left: 50%;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 8px 28px rgba(0,0,0,0.10);
  min-width: 180px;
  z-index: 100;
  padding: 6px 0;
}
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -10px; left: 0; right: 0;
  height: 10px;
}
.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 10px 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.nav-dropdown a:hover { background: var(--ink); color: #fff; }

/* ---------- Language picker ---------- */
.lang-picker { position: relative; }
.lang-trigger {
  display: flex; align-items: center; gap: 6px;
  background: none; border: 1px solid var(--line);
  color: var(--ink); cursor: pointer;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  padding: 5px 10px; border-radius: 2px;
  transition: border-color .2s, background .2s;
}
.lang-trigger:hover { border-color: var(--ink); }
.lang-picker.open .lang-trigger { border-color: var(--ink); background: var(--ink); color: #fff; }
.lang-chevron { transition: transform .2s; }
.lang-picker.open .lang-chevron { transform: rotate(180deg); }

.lang-dropdown {
  display: none;
  position: absolute; top: calc(100% + 8px); right: 0;
  width: 320px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  z-index: 100;
  padding: 8px;
}
.lang-picker.open .lang-dropdown { display: block; }

.lang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.lang-grid button {
  display: flex; align-items: baseline; gap: 8px;
  background: none; border: 0; cursor: pointer;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--ink); text-align: left;
  padding: 8px 10px; border-radius: 1px;
  transition: background .15s;
  white-space: nowrap; overflow: hidden;
}
.lang-grid button span {
  font-family: var(--grotesk); font-size: 11px;
  letter-spacing: 0; color: var(--gray-2);
  overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}
.lang-grid button:hover { background: var(--line); }
.lang-grid button.active { background: var(--ink); color: #fff; }
.lang-grid button.active span { color: rgba(255,255,255,0.6); }

/* ---------- Section label ---------- */
.section-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-2);
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 48px;
}
.section-label .num { color: var(--coral); }
.section-label::before {
  content: ''; display: inline-block; width: 8px; height: 8px;
  background: var(--coral); border-radius: 50%;
}

/* ---------- Case studies grid ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
}
.case {
  grid-column: span 2;
  border-bottom: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  padding: 28px 24px 32px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
  background: var(--paper);
}
.case:nth-child(3n) { border-right: 0; }
.case .visual {
  aspect-ratio: 4/3;
  margin-bottom: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  position: relative;
  transition: transform 0.4s cubic-bezier(0.2,0.7,0.1,1);
}
.case:hover .visual { transform: scale(0.98); }
.case:hover { background: #efeee9; }

.case-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-2);
  display: flex; justify-content: space-between;
  margin-bottom: 8px;
}
.case-tag .from { color: var(--coral); }
.case h3 {
  font-family: var(--grotesk);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 6px;
}
.case .desc {
  font-size: 13px;
  line-height: 1.85;
  color: var(--gray-2);
  margin: 0;
}
.case .arrow {
  position: absolute;
  top: 28px; right: 24px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  transform: translate(0, 0) rotate(-45deg);
  transition: transform 0.3s;
}
.case:hover .arrow { transform: translate(4px, -4px) rotate(-45deg); background: var(--coral); }
.case:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: -2px;
}

/* Visual placeholder styles */
.vis {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.vis-mark {
  font-family: var(--grotesk);
  font-weight: 700;
  font-size: clamp(40px, 5vw, 72px);
  letter-spacing: -0.04em;
}
.vis-1 { background: #1a1a1a; color: #efefef; }
.vis-1 .vis-mark { font-style: italic; }
.vis-2 { background: var(--coral); color: #fff; }
.vis-3 { background: #F5F4F0; color: var(--ink); border-bottom: 8px solid var(--coral); }
.vis-4 { background: #2A3F3A; color: #F5F4F0; }
.vis-4 .vis-mark { font-family: var(--slash); }
.vis-5 { background: #E8DDD0; color: #111; }
.vis-5 .vis-mark::after { content: '°'; color: var(--coral); }
.vis-6 { background: #111; color: #fff; }
.vis-6 .vis-mark { font-weight: 400; letter-spacing: 0.02em; }
.vis-6 .vis-mark span { color: var(--coral); }

/* ---------- Case detail modal ---------- */
.case-modal-overlay {
  display: none;
  position: fixed; inset: 0;
  z-index: 200;
  background: rgba(17,17,17,0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
}
.case-modal-overlay.open { display: flex; }
.case-modal {
  background: var(--paper);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}
.case-modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--ink); color: #fff;
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; line-height: 1;
  z-index: 10;
  transition: background 0.2s;
}
.case-modal-close:hover { background: var(--coral); }
.case-modal-visual {
  aspect-ratio: 16/9;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.case-modal-body {
  padding: 32px 36px 40px;
}
.case-modal-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 12px;
}
.case-modal-body h2 {
  font-family: var(--grotesk);
  font-weight: 700;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 16px;
}
.case-modal-body > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray-2);
  margin: 0 0 28px;
}
.case-modal-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 28px;
}
.case-modal-stat {
  background: var(--paper);
  padding: 20px;
}
.case-modal-stat .val {
  font-family: var(--grotesk);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 4px;
}
.case-modal-stat .val em { font-style: normal; color: var(--coral); }
.case-modal-stat .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-2);
}
.case-modal-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink); color: #fff;
  font-family: var(--grotesk); font-weight: 600; font-size: 14px;
  padding: 12px 24px; border: none; cursor: pointer;
  letter-spacing: -0.01em;
  transition: background 0.2s;
}
.case-modal-cta:hover { background: var(--coral); }

/* ---------- Footer ---------- */
footer {
  background: var(--ink);
  color: var(--gray-3);
  padding: 60px 0 32px;
  border-top: 1px solid #2a2a2a;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}
footer .row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
footer h5 {
  color: var(--ink-on-dark);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
  font-weight: 700;
}
footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
footer a:hover { color: var(--coral); }
footer .credit {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid #2a2a2a;
  padding-top: 24px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
footer .credit .dot { color: var(--coral); margin: 0 8px; }

/* ---------- Accessibility: prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Shared responsive ---------- */
@media (max-width: 960px) {
  .case-grid { grid-template-columns: 1fr 1fr; }
  .case { grid-column: span 1; }
  .case:nth-child(3n) { border-right: 1px solid var(--ink); }
  .case:nth-child(2n) { border-right: 0; }
  footer .row { grid-template-columns: 1fr 1fr; }
  .topbar nav { display: none; }
}