/*
 * ANTI-FORMULA
 * Home — conviction scroll
 */

/* ─── PRELOADER ──────────────────────────────────────────────── */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--specimen-black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.4s ease;
}
.preloader.done {
  opacity: 0;
  pointer-events: none;
}
.preloader-word {
  display: flex;
  gap: 0;
}
.preloader-char {
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 72px);
  color: var(--lab-white);
  display: inline-block;
}
.preloader-sub {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dark-mid);
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: relative;
  z-index: 2;
}

.hero-headline {
  max-width: 900px;
  margin-bottom: 40px;
}
.hero-headline .word {
  display: inline-block;
  margin-right: 0.25em;
}
.hero-headline .accent {
  color: var(--signal-red);
}

.hero-sub {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--dark-mid);
  margin-bottom: 48px;
}
.hero-sub .dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--signal-red);
  border-radius: 50%;
  margin: 0 12px;
  vertical-align: middle;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.5;
}
.scroll-cue-line {
  width: 1px;
  height: 40px;
  background: var(--dark-mid);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
  50%      { opacity: 1; transform: scaleY(1); }
}
.scroll-cue-text {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark-mid);
}

/* Hero background grid */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  opacity: 0.04;
}
.hero-bg-grid {
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(var(--lab-white) 1px, transparent 1px),
    linear-gradient(90deg, var(--lab-white) 1px, transparent 1px);
  background-size: 80px 80px;
}


/* ─── SECTION SHARED ─────────────────────────────────────────── */
.section-num {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 13px;
  color: var(--dark-mid);
  margin-bottom: 40px;
}

.section-header {
  max-width: 800px;
  margin-bottom: 48px;
}


/* ─── §01 THE PROBLEM ────────────────────────────────────────── */
.problem {
  border-top: 1px solid var(--dark-rule);
}
.problem-body {
  max-width: 640px;
}
.problem-body p {
  color: var(--dark-body);
  margin-bottom: 24px;
}
.problem-body p:last-child { margin-bottom: 0; }
.problem-line {
  width: 80px;
  height: 2px;
  background: var(--signal-red);
  margin-top: 48px;
}


/* ─── §02 THE REFUSAL ────────────────────────────────────────── */
.refusal {
  border-top: 1px solid var(--dark-rule);
}
.refusal-body {
  max-width: 640px;
  margin-bottom: 64px;
}
.refusal-body p {
  color: var(--dark-body);
  margin-bottom: 24px;
}

/* Demonstration: upstream diagram */
.refusal-diagram {
  max-width: 720px;
  margin-bottom: 64px;
  padding: 48px;
  border: 1px solid var(--dark-rule);
  position: relative;
}
.diagram-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark-mid);
  margin-bottom: 32px;
}
.diagram-flow {
  display: flex;
  align-items: center;
  gap: 0;
}
.diagram-node {
  flex: 1;
  padding: 16px 20px;
  text-align: center;
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--dark-rule);
  color: var(--dark-mid);
  transition: all 0.4s ease;
}
.diagram-node.active {
  border-color: var(--signal-red);
  color: var(--lab-white);
  background: rgba(193, 39, 45, 0.08);
}
.diagram-arrow {
  width: 32px;
  height: 1px;
  background: var(--dark-rule);
  flex-shrink: 0;
  position: relative;
}
.diagram-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  border: 3px solid transparent;
  border-left-color: var(--dark-rule);
}

/* Signature line */
.signature {
  max-width: 640px;
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: clamp(24px, 3.5vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--lab-white);
}


/* ─── §03 VENTURES ───────────────────────────────────────────── */
.ventures {
  background: var(--lab-white);
  color: var(--specimen-black);
}
.ventures .section-num { color: var(--muted); }

.venture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--hairline);
}

.venture-card {
  background: var(--lab-white);
  padding: 40px;
  cursor: pointer;
  transition: background 0.3s;
  position: relative;
}
.venture-card:hover {
  background: #EEEBE6;
}

.venture-tag {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.venture-name {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--specimen-black);
  margin-bottom: 12px;
}

.venture-thesis {
  font-family: var(--f-serif);
  font-size: 16px;
  font-style: italic;
  color: var(--muted);
  line-height: 1.5;
}

.venture-detail {
  overflow: hidden;
}
.venture-detail-inner {
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  margin-top: 20px;
}
.venture-detail p {
  font-family: var(--f-serif);
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.venture-link {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal-red);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.venture-link:hover { border-bottom-color: var(--signal-red); }


/* ─── §04 INVITATION ─────────────────────────────────────────── */
.invitation {
  border-top: 1px solid var(--dark-rule);
}

.doors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--dark-rule);
  margin-top: 48px;
}

.door {
  background: var(--specimen-black);
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 240px;
  transition: background 0.3s;
}
.door:hover { background: var(--dark-subtle); }

.door-text {
  font-family: var(--f-serif);
  font-size: 20px;
  font-style: italic;
  color: var(--dark-body);
  line-height: 1.45;
  margin-bottom: 32px;
}

.door-action {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal-red);
  opacity: 0;
  transition: opacity 0.3s;
}
.door:hover .door-action { opacity: 1; }

/* Close */
.home-close {
  text-align: center;
  padding-top: 96px;
  padding-bottom: 64px;
}
.home-close-mission {
  font-family: var(--f-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--dark-body);
  max-width: 480px;
  margin: 0 auto 16px;
  line-height: 1.6;
}
.home-close-loc {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark-mid);
}


/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding-top: 100px; padding-bottom: 60px; }
  .hero-headline { max-width: 100%; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .scroll-cue { display: none; }
  .hero-bg-grid { background-size: 60px 60px; }

  .refusal-diagram { padding: 24px; }
  .diagram-flow { flex-direction: column; gap: 8px; }
  .diagram-arrow {
    width: 1px; height: 24px;
    background: var(--dark-rule);
  }
  .diagram-arrow::after {
    right: -3px; top: auto; bottom: 0;
    border: 3px solid transparent;
    border-top-color: var(--dark-rule);
    border-left-color: transparent;
  }

  .venture-grid { grid-template-columns: 1fr; }
  .venture-card { padding: 32px 24px; }
  .venture-name { font-size: 24px; }

  .doors { grid-template-columns: 1fr; }
  .door { padding: 32px 24px; min-height: 180px; }
  .door-action { opacity: 1; }

  .home-close { text-align: left; }
  .home-close-mission { margin: 0 0 16px; }
}