/* ==========================================================================
   storiforge — visual system
   Concept: the site reads like a shot log / storyboard reel.
   Ink stage, bone paper type, one vermillion marker accent.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,500&family=Space+Mono:wght@400;700&display=swap');

:root {
  --ink: #14100d;
  --panel: #1d1712;
  --paper: #ede6d6;
  --paper-dim: #b6ac97;
  --marker: #e8481c;
  --marker-dim: #a83815;
  --line: rgba(237, 230, 214, 0.14);

  --display: 'Fraunces', Georgia, serif;
  --mono: 'Space Mono', 'Courier New', monospace;

  --edge: 1px solid var(--line);
}

* { box-sizing: border-box; }

html {
  background: var(--ink);
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- slate header ---------- */

.slate {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: var(--edge);
  background: rgba(20, 16, 13, 0.92);
  backdrop-filter: blur(6px);
}

.slate-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1240px;
  margin: 0 auto;
}

.slate-mark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--paper);
}

.slate-mark span { color: var(--marker); }

.slate-nav {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.slate-nav a {
  text-decoration: none;
  font-size: 0.82rem;
  color: var(--paper-dim);
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.slate-nav a:hover,
.slate-nav a[aria-current="page"] {
  color: var(--paper);
  border-color: var(--marker);
}

.slate-nav a:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--marker);
  outline-offset: 3px;
}

.hero-video {
  position: relative;
  overflow: hidden;
}

.hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(20,16,13,0.75) 0%, rgba(20,16,13,0.55) 45%, rgba(20,16,13,0.92) 100%);
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg-video { display: none; }
  .hero-video { background: var(--ink); }
}

/* ---------- hero ---------- */

.hero {
  padding: 96px 0 64px;
  border-bottom: var(--edge);
}

.hero-tag {
  font-size: 0.78rem;
  color: var(--paper-dim);
  margin: 0 0 22px;
}

.hero-tag .dot {
  color: var(--marker);
}

.hero h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.6rem, 6.4vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  margin: 0 0 32px;
  max-width: 15ch;
}

.hero h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--marker);
}

.hero-sub {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--paper-dim);
  max-width: 46ch;
  margin: 0 0 40px;
  line-height: 1.7;
}

.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--paper);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.btn:hover { border-color: var(--marker); }

.btn.primary {
  background: var(--marker);
  border-color: var(--marker);
  color: var(--ink);
  font-weight: 700;
}

.btn.primary:hover { background: var(--marker-dim); border-color: var(--marker-dim); }

/* ---------- filmstrip reel ---------- */

.reel {
  border-bottom: var(--edge);
  overflow: hidden;
  background: var(--panel);
}

.reel-track {
  display: flex;
  gap: 0;
  width: max-content;
  animation: reel-scroll 32s linear infinite;
}

.reel:hover .reel-track {
  animation-play-state: paused;
}

@keyframes reel-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .reel-track { animation: none; }
}

.reel-frame {
  flex: 0 0 auto;
  width: 220px;
  aspect-ratio: 16 / 10;
  border-right: var(--edge);
  background:
    repeating-linear-gradient(135deg, rgba(237,230,214,0.05) 0 2px, transparent 2px 14px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper-dim);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  position: relative;
}

.reel-frame::before {
  content: attr(data-n);
  position: absolute;
  top: 10px;
  left: 10px;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--marker);
}

/* ---------- section scaffolding ---------- */

section.block {
  padding: 88px 0;
  border-bottom: var(--edge);
}

section.block:last-of-type { border-bottom: none; }

.block-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.block-head h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  margin: 0;
  letter-spacing: -0.01em;
}

.block-head p {
  color: var(--paper-dim);
  max-width: 40ch;
  margin: 0;
  font-size: 0.9rem;
}

.slug {
  font-size: 0.78rem;
  color: var(--paper-dim);
}
.slug .dot { color: var(--marker); }

/* ---------- case study grid ---------- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--line);
}

.case-card {
  background: var(--ink);
  padding: 40px;
  text-decoration: none;
  color: var(--paper);
  position: relative;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: background 0.2s ease;
}

.case-card:hover { background: var(--panel); }

.case-card .frame-no {
  position: absolute;
  top: 32px;
  left: 40px;
  font-size: 0.75rem;
  color: var(--marker);
}

.case-card .placeholder-art {
  position: absolute;
  inset: 32px 40px 120px;
  border: 1px dashed var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper-dim);
  font-size: 0.72rem;
  text-align: center;
  padding: 12px;
}

.case-card h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.case-card .meta {
  font-size: 0.78rem;
  color: var(--paper-dim);
}

/* ---------- samples grid ---------- */

.sample-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--line);
}

.sample-card {
  background: var(--panel);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper-dim);
  font-size: 0.72rem;
  text-align: center;
  padding: 16px;
  border: 1px dashed transparent;
}

/* ---------- footer ---------- */

footer.slate-foot {
  border-top: var(--edge);
  padding: 48px 0;
}

.foot-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.foot-row .slug { color: var(--paper-dim); }

.foot-links {
  display: flex;
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.foot-links a { text-decoration: none; font-size: 0.8rem; color: var(--paper-dim); }
.foot-links a:hover { color: var(--marker); }

/* ---------- responsive ---------- */

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--paper);
  width: 40px;
  height: 36px;
  font-size: 1.1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

@media (max-width: 860px) {
  .menu-toggle { display: flex; }
  .slate-bar { position: relative; }
  .slate-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--ink);
    border-bottom: var(--edge);
    padding: 8px 32px 20px;
  }
  .slate-nav.open { display: flex; }
  .slate-nav li { border-top: var(--edge); }
  .slate-nav a { display: block; padding: 14px 0; }
  .case-grid { grid-template-columns: 1fr; }
  .sample-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 64px 0 40px; }
}