:root {
  --color-signal-red: #fc1c46;
  --color-pure-white: #ffffff;
  --color-ash: #cccccc;
  --color-graphite: #4c4c4c;
  --surface-obsidian: #0a0a0a;
  --surface-carbon: #1a1a1a;
  --surface-elevated: #141414;
  --font-reader: 'Courier New', Courier, monospace;
  --page-pad: clamp(20px, 5vw, 64px);
  --max-width: 1200px;
  --ease-out: cubic-bezier(0.32, 0.72, 0, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100dvh;
  background: var(--surface-obsidian);
  color: var(--color-ash);
  font-family: var(--font-reader);
  font-size: 14px;
  line-height: 1.55;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ── Cinematic hero ── */
.hero-cinematic {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
}

.hero-canvas-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#hillsCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 35%, transparent 0%, rgba(10, 10, 10, 0.55) 70%, rgba(10, 10, 10, 0.92) 100%),
    linear-gradient(to bottom, rgba(10, 10, 10, 0.3) 0%, transparent 35%, rgba(10, 10, 10, 0.85) 85%, var(--surface-obsidian) 100%);
}

.hero-canvas-wrap.hills-fallback {
  background:
    radial-gradient(ellipse 120% 80% at 50% 100%, rgba(252, 28, 70, 0.12), transparent 55%),
    linear-gradient(180deg, #0a0a0a 0%, #141010 45%, #1a080c 100%);
}

.hero-stage {
  position: relative;
  z-index: 2;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: clamp(16px, 3vw, 28px) var(--page-pad) clamp(20px, 4vw, 36px);
}

/* ── Nav ── */
.hero-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: clamp(24px, 5vh, 48px);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-pure-white);
  margin-right: auto;
}

.wordmark-mark {
  width: 7px;
  height: 7px;
  background: var(--color-signal-red);
}

.mode-nav,
.demo-mode-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.demo-mode-bar {
  justify-content: center;
  margin-bottom: 12px;
  padding: 6px 8px;
  border: 1px solid rgba(76, 76, 76, 0.35);
  background: rgba(10, 10, 10, 0.55);
  backdrop-filter: blur(10px);
}

.mode-pill {
  padding: 5px 12px;
  border: 1px solid rgba(76, 76, 76, 0.7);
  border-radius: 9999px;
  background: rgba(10, 10, 10, 0.4);
  color: var(--color-ash);
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.mode-pill:hover {
  border-color: var(--color-signal-red);
  color: var(--color-pure-white);
}

.mode-pill.active {
  border-color: var(--color-signal-red);
  background: var(--color-signal-red);
  color: var(--color-pure-white);
}

.mode-pill:focus-visible {
  outline: 2px solid var(--color-signal-red);
  outline-offset: 2px;
}

.nav-cta {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-pure-white);
  border-bottom: 1px solid var(--color-signal-red);
}

/* ── Centered type ── */
.hero-type {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 clamp(8px, 3vw, 32px);
  pointer-events: none;
}

.hero-type .signal-cta {
  pointer-events: auto;
}

.hero-eyebrow {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-graphite);
  margin-bottom: clamp(16px, 3vh, 28px);
}

#hero-title {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  margin-bottom: clamp(16px, 2.5vh, 24px);
  text-wrap: balance;
}

.hero-line-italic {
  font-size: clamp(28px, 5vw, 52px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
  color: var(--color-ash);
  letter-spacing: -0.02em;
}

.hero-line-main {
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 400;
  line-height: 1.02;
  color: var(--color-pure-white);
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size: clamp(12px, 1.8vw, 14px);
  line-height: 1.65;
  color: var(--color-ash);
  max-width: 42ch;
  margin-bottom: clamp(20px, 3vh, 28px);
  opacity: 0.9;
}

.signal-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 9999px;
  border: none;
  background: var(--color-signal-red);
  color: var(--color-pure-white);
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), opacity 0.2s var(--ease-out);
}

.signal-cta:hover { opacity: 0.92; }
.signal-cta:active { transform: scale(0.98); }
.signal-cta:focus-visible {
  outline: 2px solid var(--color-pure-white);
  outline-offset: 3px;
}

/* ── Demo overlay (bottom) ── */
.hero-demo-overlay {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 680px;
  margin: clamp(16px, 3vh, 32px) auto 0;
  pointer-events: auto;
}

.demo-chrome {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 8px;
}

.demo-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.demo-label {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-graphite);
}

.demo-select {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid rgba(76, 76, 76, 0.6);
  border-radius: 0;
  background: rgba(26, 26, 26, 0.92);
  color: var(--color-pure-white);
  font-family: inherit;
  font-size: 11px;
}

.demo-select:focus-visible {
  outline: 2px solid var(--color-signal-red);
  outline-offset: 1px;
}

.speed-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

#demoWpm {
  flex: 1;
  height: 3px;
  appearance: none;
  background: var(--color-graphite);
  cursor: pointer;
}

#demoWpm::-webkit-slider-thumb {
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-signal-red);
  border: 2px solid var(--surface-obsidian);
}

#demoWpm::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-signal-red);
  border: 2px solid var(--surface-obsidian);
}

.speed-value {
  min-width: 3ch;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--color-pure-white);
}

/* 21st.dev-inspired: border beam + shine + glow (Magic UI) */
@keyframes border-beam {
  100% { offset-distance: 100%; }
}

@keyframes shine-rotate {
  to { transform: rotate(360deg); }
}

@keyframes demo-pulse {
  0%, 100% { opacity: 0.45; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.02); }
}

.demo-showcase {
  position: relative;
  isolation: isolate;
}

.demo-glow {
  position: absolute;
  inset: -20% -10% -30%;
  background: radial-gradient(ellipse 70% 55% at 50% 60%, rgba(252, 28, 70, 0.22), transparent 70%);
  filter: blur(28px);
  pointer-events: none;
  z-index: 0;
  animation: demo-pulse 6s var(--ease-out) infinite;
}

.demo-shell {
  position: relative;
  z-index: 1;
  padding: 1px;
  border-radius: 12px;
  background: rgba(14, 14, 14, 0.92);
  border: 1px solid rgba(76, 76, 76, 0.35);
  backdrop-filter: blur(14px);
  box-shadow:
    0 0 0 1px rgba(252, 28, 70, 0.08),
    0 24px 48px -12px rgba(0, 0, 0, 0.65),
    0 0 80px -20px rgba(252, 28, 70, 0.35);
  overflow: hidden;
}

.demo-shine {
  position: absolute;
  inset: -50%;
  z-index: 0;
  background: conic-gradient(
    from 0deg,
    transparent 0deg 340deg,
    rgba(252, 28, 70, 0.5) 350deg,
    rgba(255, 120, 140, 0.35) 360deg
  );
  animation: shine-rotate 8s linear infinite;
  opacity: 0.35;
  pointer-events: none;
}

.demo-beam {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  pointer-events: none;
  border: 1.5px solid transparent;
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
}

.demo-beam::after {
  content: '';
  position: absolute;
  width: 200px;
  aspect-ratio: 1;
  background: linear-gradient(to left, var(--color-signal-red), #ff8fa3, transparent);
  offset-path: rect(0 auto auto 0 round 12px);
  offset-anchor: 90% 50%;
  offset-distance: 0%;
  animation: border-beam 14s linear infinite;
  filter: blur(1px);
}

.demo-frame {
  position: relative;
  z-index: 1;
  margin: 6px;
  border-radius: 8px;
  background: var(--surface-carbon);
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.demo-iframe {
  width: 100%;
  height: 280px;
  border: 0;
  display: block;
  background: #1a1a1a;
}

@supports not (offset-path: rect(0 auto auto 0 round 12px)) {
  .demo-beam::after {
    display: none;
  }

  .demo-shine {
    opacity: 0.55;
  }
}

.demo-caption {
  margin-top: 8px;
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--color-graphite);
  text-align: center;
}

.demo-caption a {
  color: var(--color-ash);
  border-bottom: 1px solid rgba(252, 28, 70, 0.35);
}

/* ── Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Bento ── */
.bento {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 1px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 80px) var(--page-pad);
  background: var(--color-graphite);
  border-top: 1px solid rgba(76, 76, 76, 0.4);
}

.bento-card {
  padding: clamp(24px, 4vw, 36px);
  background: var(--surface-carbon);
}

.bento-wide {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.bento-tag {
  display: block;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-signal-red);
  margin-bottom: 12px;
}

.bento-card h2 {
  font-size: clamp(17px, 2.5vw, 22px);
  font-weight: 400;
  color: var(--color-pure-white);
  margin-bottom: 8px;
}

.bento-card p {
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-ash);
  max-width: 36ch;
}

/* ── CTA ── */
.cta-band {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 64px) var(--page-pad) clamp(64px, 8vw, 96px);
  text-align: center;
  border-top: 1px solid rgba(76, 76, 76, 0.35);
}

.cta-line {
  font-size: 12px;
  color: var(--color-ash);
  margin-bottom: 20px;
}

.cta-large {
  padding: 14px 32px;
  font-size: 12px;
}

/* ── Footer ── */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px var(--page-pad) 40px;
  border-top: 1px solid rgba(76, 76, 76, 0.35);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 11px;
  color: var(--color-graphite);
}

.site-footer a:hover { color: var(--color-ash); }

@media (max-width: 768px) {
  .hero-nav {
    justify-content: center;
  }

  .wordmark {
    margin-right: 0;
    width: 100%;
    justify-content: center;
  }

  .demo-mode-bar {
    gap: 4px;
    padding: 5px 6px;
  }

  .mode-pill {
    padding: 4px 10px;
    font-size: 9px;
  }

  .demo-chrome {
    grid-template-columns: 1fr;
  }

  .demo-iframe {
    height: 240px;
  }

  .bento {
    grid-template-columns: 1fr;
  }

  .bento-wide {
    grid-row: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .demo-glow,
  .demo-shine,
  .demo-beam::after {
    animation: none;
  }
}