/* Landing Page — "Terminal Noir" aesthetic
 * Dark, technical, with luminous cyan accents.
 * Typography: Space Mono (display) + DM Sans (body) via Google Fonts.
 */

/* Fonts loaded via <link> in the view (content_for :head) for parallel loading.
 * Do NOT use @import here — it blocks rendering sequentially. */

/* ── Design Tokens + Reset ── */
.landing {
  --bg: #08090d;
  --bg-raised: #0f1117;
  --bg-surface: #161822;
  --border: #1e2030;
  --text: #e2e4ed;
  --text-muted: #6b7089;
  --text-dim: #535678;
  --accent: #22d3ee;
  --accent-hover: #67e8f9;
  --accent-glow: rgba(34, 211, 238, 0.15);
  --accent-dim: rgba(34, 211, 238, 0.06);
  --success: #34d399;
  --danger: #f87171;
  --warning: #fbbf24;
  --font-display: 'Space Mono', monospace;
  --font-body: 'DM Sans', sans-serif;
  --max-width: 1120px;

  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  line-height: 1.6;
}

.landing *,
.landing *::before,
.landing *::after {
  box-sizing: border-box;
}

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

/* ── Container ── */
.landing__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Section Labels ── */
.landing__section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.landing__heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 3rem;
  letter-spacing: -0.02em;
}

.landing__heading--center {
  text-align: center;
}

/* ══════════════════════════════════
   HERO
   ══════════════════════════════════ */
.landing__hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
  min-height: 85vh;
}

.landing__overline {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 2rem;
}

.landing__overline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.25rem;
  height: 2px;
  background: var(--accent);
}

.landing__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.08;
  margin: 0 0 2rem;
  letter-spacing: -0.03em;
}

.landing__title-accent {
  color: var(--accent);
  position: relative;
}

.landing__title-accent::after {
  content: '';
  position: absolute;
  bottom: 0.08em;
  left: 0;
  right: 0;
  height: 0.12em;
  background: var(--accent);
  opacity: 0.25;
  border-radius: 1px;
}

.landing__description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 0 2.5rem;
}

/* ── CTA Buttons ── */
.landing__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.landing__cta--center {
  justify-content: center;
}

.landing__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: 4px;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  cursor: pointer;
  border: none;
}

.landing__btn--primary {
  background: var(--accent);
  color: var(--bg);
}

.landing__btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-1px);
}

.landing__btn--ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.landing__btn--ghost:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.landing__btn--large {
  padding: 1.125rem 3rem;
  font-size: 1rem;
}

/* ── Terminal Visual ── */
.landing__terminal {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow:
    0 20px 60px -15px rgba(0, 0, 0, 0.5),
    0 0 80px var(--accent-dim);
}

.landing__terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.landing__terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.landing__terminal-dot--red { background: var(--danger); }
.landing__terminal-dot--yellow { background: var(--warning); }
.landing__terminal-dot--green { background: var(--success); }

.landing__terminal-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-left: auto;
}

.landing__terminal-body {
  padding: 1.25rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 2;
}

.landing__terminal-line {
  opacity: 0;
  animation: terminal-appear 0.3s ease forwards;
}

.landing__terminal-line[data-delay="1"] { animation-delay: 0.4s; }
.landing__terminal-line[data-delay="2"] { animation-delay: 1.0s; }
.landing__terminal-line[data-delay="3"] { animation-delay: 1.6s; }
.landing__terminal-line[data-delay="4"] { animation-delay: 2.4s; }
.landing__terminal-line[data-delay="5"] { animation-delay: 3.2s; }
.landing__terminal-line[data-delay="6"] { animation-delay: 4.0s; }
.landing__terminal-line[data-delay="7"] { animation-delay: 4.8s; }

.landing__terminal-line--dim { color: var(--text-dim); }
.landing__terminal-line--accent { color: var(--accent); }
.landing__terminal-line--success { color: var(--success); }

.landing__terminal-prompt {
  color: var(--accent);
  margin-right: 0.5rem;
}

@keyframes terminal-appear {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════
   EXAMPLES
   ══════════════════════════════════ */
.landing__examples {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 0;
}

.landing__examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.landing__card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.landing__card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-dim);
  transform: translateY(-2px);
}

.landing__card-meta {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.landing__card-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  flex: 1;
}

.landing__card-arrow {
  font-size: 1.25rem;
  color: var(--accent);
  margin-top: 1rem;
  transition: transform 0.2s ease;
}

.landing__card:hover .landing__card-arrow {
  transform: translateX(4px);
}

/* ══════════════════════════════════
   HOW IT WORKS
   ══════════════════════════════════ */
.landing__how {
  padding: 5rem 0;
}

.landing__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.landing__step {
  position: relative;
  padding: 2rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s ease;
}

.landing__step:hover {
  border-color: var(--accent);
}

.landing__step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 1.5rem;
}

.landing__step:hover .landing__step-number {
  opacity: 0.5;
}

.landing__step-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.landing__step-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ══════════════════════════════════
   COMPARISON
   ══════════════════════════════════ */
.landing__compare {
  padding: 5rem 0;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.landing__compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.landing__compare-col {
  padding: 2rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.landing__compare-col--them {
  background: var(--bg);
}

.landing__compare-col--us {
  background: var(--bg-surface);
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-dim);
}

.landing__compare-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.landing__compare-col--them .landing__compare-label {
  color: var(--text-dim);
}

.landing__compare-col--us .landing__compare-label {
  color: var(--accent);
}

.landing__compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.landing__compare-list li {
  padding: 0.6rem 0;
  padding-left: 1.75rem;
  position: relative;
  font-size: 0.95rem;
  line-height: 1.5;
}

.landing__compare-col--them .landing__compare-list li {
  color: var(--text-dim);
}

.landing__compare-col--them .landing__compare-list li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: var(--danger);
  font-weight: 700;
  font-family: var(--font-display);
}

.landing__compare-col--us .landing__compare-list li {
  color: var(--text);
}

.landing__compare-col--us .landing__compare-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-display);
}

/* ══════════════════════════════════
   CAPABILITIES
   ══════════════════════════════════ */
.landing__capabilities {
  padding: 5rem 0;
}

.landing__caps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.landing__cap {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg-raised);
  transition: background 0.2s ease;
}

.landing__cap:hover {
  background: var(--bg-surface);
}

.landing__cap-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 6px;
}

.landing__cap-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
}

/* ══════════════════════════════════
   FINAL CTA
   ══════════════════════════════════ */
.landing__final-cta {
  padding: 5rem 0;
  text-align: center;
  position: relative;
}

.landing__final-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* ══════════════════════════════════
   FOOTER
   ══════════════════════════════════ */
.landing__footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.landing__footer-text {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0;
}

.landing__footer-link {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.landing__footer-link:hover {
  color: var(--accent);
}

/* ══════════════════════════════════
   HERO FADE-IN
   ══════════════════════════════════ */
.landing__hero-content > * {
  opacity: 0;
  animation: landing-reveal 0.6s ease forwards;
}

.landing__hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.landing__hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.landing__hero-content > *:nth-child(3) { animation-delay: 0.35s; }
.landing__hero-content > *:nth-child(4) { animation-delay: 0.5s; }

.landing__hero-visual {
  opacity: 0;
  animation: landing-reveal 0.8s ease 0.3s forwards;
}

@keyframes landing-reveal {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════ */
@media (max-width: 900px) {
  .landing__hero {
    grid-template-columns: 1fr;
    padding: 4rem 2rem 3rem;
    min-height: auto;
    gap: 3rem;
  }

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

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

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

@media (max-width: 600px) {
  .landing__hero {
    padding: 3rem 1.5rem 2rem;
  }

  .landing__title {
    font-size: 2.25rem;
  }

  .landing__heading {
    font-size: 1.75rem;
  }

  .landing__cta {
    flex-direction: column;
  }

  .landing__btn {
    width: 100%;
    justify-content: center;
  }

  .landing__examples,
  .landing__how,
  .landing__compare,
  .landing__capabilities,
  .landing__final-cta {
    padding: 4rem 0;
  }

  .landing__terminal-body {
    font-size: 0.7rem;
  }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  .landing__hero-content > *,
  .landing__hero-visual,
  .landing__terminal-line {
    animation: none;
    opacity: 1;
  }

  .landing__btn,
  .landing__card,
  .landing__step,
  .landing__cap {
    transition: none;
  }
}

/* ── Noise texture overlay ── */
.landing::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.landing > * {
  position: relative;
  z-index: 1;
}