/* ============ LOADING SCREEN ============ */
.loader {
  position: fixed; inset: 0;
  background: var(--ink-950);
  z-index: 99999;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 32px;
}
.loader.done { pointer-events: none; }
.loader-text {
  font-family: var(--font-sans);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  overflow: hidden;
}
.loader-text span {
  display: inline-block;
  transform: translateY(100%);
  will-change: transform;
}
.loader-bar {
  width: 240px; height: 1px;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}
.loader-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  display: flex;
  gap: 20px;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 5;
  height: 100%;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 96px 48px 48px;
}
.hero-headline {
  font-size: clamp(44px, 8vw, 130px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.hero-headline .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: baseline;
  padding-bottom: 0.15em;
  margin-bottom: -0.15em;
}
.hero-headline .char {
  display: inline-block;
  transform: translateY(110%);
  will-change: transform;
}

/* ============ MANIFESTO PINNED ============ */
.manifesto-pin {
  height: 300vh;
  position: relative;
}
.manifesto-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.manifesto-text {
  font-size: clamp(24px, 4vw, 56px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 1400px;
  padding: 0 48px;
  text-align: left;
}
.manifesto-word {
  display: inline-block;
  opacity: 0.15;
  transition: opacity 0.4s, color 0.4s;
  margin-right: 0.25em;
}
.manifesto-word.active { opacity: 1; }
.manifesto-word.accent { color: var(--mint-500); font-weight: 700; }
.manifesto-word.heavy { font-weight: 700; }

/* ============ PRODUCTS HORIZONTAL ============ */
.products-pin {
  height: 400vh;
  position: relative;
}
.products-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}
.products-track {
  display: flex;
  height: 100%;
  will-change: transform;
}
.product-panel {
  flex: 0 0 100vw;
  height: 100vh;
  padding: 96px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.product-panel-inner {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.product-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mint-500);
  margin-bottom: 32px;
}
.product-title {
  font-size: clamp(48px, 8vw, 120px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.92;
  margin-bottom: 24px;
}
.product-tagline {
  font-size: clamp(18px, 2vw, 24px);
  color: rgba(255,255,255,0.6);
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 40px;
}
.product-learn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-500);
  margin-top: 24px;
  transition: gap 0.3s;
}
.product-learn-more:hover { gap: 14px; }

/* Product visuals */
.product-visual {
  aspect-ratio: 1;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.blueprint-svg { width: 100%; height: 100%; }
.blueprint-svg .b-line {
  stroke: var(--mint-500);
  stroke-width: 1;
  fill: none;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
}
.blueprint-svg .b-dot { fill: var(--mint-500); opacity: 0; }
.network-svg .net-line { stroke: rgba(20, 232, 156, 0.3); stroke-width: 1; }
.network-svg .net-node {
  fill: var(--mint-500);
  filter: drop-shadow(0 0 8px rgba(20, 232, 156, 0.6));
  transform-origin: center;
  transform-box: fill-box;
  animation: pulse-node 2s ease-in-out infinite;
}
@keyframes pulse-node {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}
.wave-svg .wave-path { stroke: var(--mint-500); stroke-width: 2; fill: none; }

/* ============ WHY QC COMPARISON ============ */
.comparison {
  display: flex;
  flex-direction: column;
  max-width: 700px;
}
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items: center;
  padding: 1.2rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all 0.3s;
}
.comparison-row:last-child { border-bottom: none; }
.comparison-row:hover { padding-left: 0.5rem; }
.comp-left {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.35);
  text-align: right;
  padding-right: 1.5rem;
  text-decoration: line-through;
  text-decoration-color: rgba(255,255,255,0.15);
}
.comp-arrow {
  color: var(--mint-500);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  filter: drop-shadow(0 0 4px var(--mint-glow));
}
.comp-right {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  padding-left: 1.5rem;
}

/* ============ INDEX TIER CARDS ============ */
.tier-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.tier-card:hover {
  border-color: rgba(20, 232, 156, 0.2);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

/* ============ MASSIVE RULES ============ */
.rule-section {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 96px 48px;
  position: relative;
}
.rule-num {
  font-size: clamp(120px, 25vw, 400px);
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -0.05em;
  background: linear-gradient(180deg, var(--mint-500) 0%, rgba(20, 232, 156, 0.05) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  will-change: transform;
}

/* ============ CRESCENDO ============ */
.crescendo-pin {
  height: 250vh;
  position: relative;
}
.crescendo-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.crescendo-text {
  font-size: clamp(52px, 10vw, 160px);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.86;
  text-align: center;
  will-change: transform;
}

/* ============ CONTACT CARD ============ */
.contact-card {
  background:
    linear-gradient(135deg, rgba(20, 232, 156, 0.08) 0%, rgba(20, 232, 156, 0.01) 100%),
    linear-gradient(180deg, rgba(8, 37, 37, 0.6), rgba(6, 29, 29, 0.6));
  border: 1px solid rgba(20, 232, 156, 0.2);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 64px;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  top: -50%; right: -50%;
  width: 100%; height: 100%;
  background: radial-gradient(circle, rgba(20, 232, 156, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

/* ============ PROMISE QUOTE ============ */
.promise-section {
  padding: 160px 48px;
  text-align: center;
  position: relative;
}
.promise-section blockquote {
  font-size: clamp(36px, 6vw, 80px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 900px;
  margin: 0 auto;
  white-space: pre-line;
}
.promise-section cite {
  display: block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mint-500);
  margin-top: 40px;
}

/* ============ MOBILE RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero-content { padding: 80px 24px 32px; }
  .hero-headline { font-size: clamp(28px, 7vw, 48px); }
  .manifesto-text { font-size: clamp(28px, 5vw, 48px); padding: 0 24px; }
  .product-panel { padding: 64px 24px; }
  .product-panel-inner { grid-template-columns: 1fr; gap: 32px; }
  .product-visual { max-width: 280px; margin: 0 auto; }
  .rule-section { padding: 64px 24px; min-height: auto; }
  .rule-num { font-size: clamp(80px, 20vw, 200px); }
  .promise-section { padding: 80px 24px; }
  .contact-card { padding: 32px 24px; }
  .comparison-row { grid-template-columns: 1fr; gap: 4px; text-align: left; }
  .comp-left { text-align: left; padding-right: 0; }
  .comp-arrow { display: none; }
  .comp-right { padding-left: 0; }
  .comp-right::before { content: '→ '; color: var(--mint-500); font-weight: 700; }
}