/* ============================================================
   CLIPAL LANDING PAGE — css/style.css
   Design System: Industrial Precision (Black × Silver × Gold)
   ============================================================ */

/* ── 1. RESET + BASE ─────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: opacity 0.4s ease;
}

body.is-loading {
  opacity: 0;
}

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

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

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--gold);
}

/* ── 2. DESIGN TOKENS ────────────────────────────────────── */
:root {
  /* Colors */
  --bg-base: #0a0a0b;
  --bg-surface: rgba(255, 255, 255, 0.03);
  --bg-surface-hover: rgba(255, 255, 255, 0.06);
  --bg-terminal: #0d0d10;
  --silver: #e5e7eb;
  --silver-dim: #9ca3af;
  --gold: #d4af37;
  --gold-dim: rgba(212, 175, 55, 0.6);
  --gold-glow: rgba(212, 175, 55, 0.18);
  --border: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(212, 175, 55, 0.35);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --green: #4ade80;
  --red: #f87171;

  /* Typography */
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 0.18s;
  --dur-std: 0.3s;
  --dur-slow: 0.6s;
}

/* ── 3. LAYOUT UTILITIES ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

section {
  padding-block: var(--space-24);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.section-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

/* ── 4. SCROLL REVEAL ────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

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

/* ── 5. GLASS CARD ───────────────────────────────────────── */
.glass-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--dur-std) var(--ease-out),
    box-shadow var(--dur-std) var(--ease-out),
    transform var(--dur-std) var(--ease-out);
}

.glass-card:hover {
  border-color: var(--border-gold);
  box-shadow: 0 0 30px var(--gold-glow);
  transform: translateY(-2px);
}

/* ── 6. BUTTONS ──────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 24px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.15) 0%, rgba(229, 231, 235, 0.08) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur-std), box-shadow var(--dur-std), transform var(--dur-fast);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(212, 175, 55, 0.08) 100%);
  opacity: 0;
  transition: opacity var(--dur-std);
}

.btn-primary:hover {
  box-shadow: 0 0 24px var(--gold-glow);
  transform: translateY(-1px);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--dur-std), color var(--dur-std), background var(--dur-std);
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: var(--silver-dim);
  color: var(--text-primary);
  background: var(--bg-surface-hover);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: border-color var(--dur-std), color var(--dur-std);
  text-decoration: none;
}

.btn-ghost:hover {
  border-color: var(--silver-dim);
  color: var(--text-primary);
}

/* ── 7. TYPOGRAPHY SPECIAL ───────────────────────────────── */
.text-gradient {
  background: linear-gradient(135deg, #e5e7eb 0%, #d4af37 50%, #e5e7eb 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer-text 4s linear infinite;
}

@keyframes shimmer-text {
  0% {
    background-position: 0% center;
  }

  100% {
    background-position: 200% center;
  }
}

/* ── 8. HEADER / NAV ─────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--dur-std);
}

.nav-container {
  max-width: 1200px;
  margin-inline: auto;
  padding: 14px var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon {
  border-radius: 6px;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex: 1;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--dur-fast);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.lang-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

.lang-toggle:hover {
  border-color: var(--border-gold);
  color: var(--gold);
}

.lang-label.active {
  color: var(--gold);
  font-weight: 700;
}

.lang-sep {
  color: var(--text-muted);
}

/* ── 9. HERO ─────────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(212, 175, 55, 0.07) 0%, transparent 65%);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 540px;
  align-items: center;
  gap: var(--space-16);
  min-height: calc(100vh - 80px);
  padding-block: var(--space-16);
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: var(--space-12);
  }
  .hero-copy {
    align-items: center;
  }
  .hero-sub {
    margin-inline: auto;
  }
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.eyebrow-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.6;
    transform: scale(0.85);
  }
}

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 480px;
}

.cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}

.platform-badge {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold-dim);
  margin-left: var(--space-1);
}

.platform-badge.visible {
  display: inline;
}

/* ── 10. TERMINAL ────────────────────────────────────────── */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 540px;
  flex-shrink: 1;
}

.terminal {
  width: 100%;
  max-width: 540px;
  background: var(--bg-terminal);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.08),
    0 32px 80px rgba(0, 0, 0, 0.6),
    0 0 40px rgba(212, 175, 55, 0.05);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  /* Prevent content from stretching the terminal width */
  contain: layout;
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px var(--space-4);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red {
  background: #ff5f56;
}

.dot-yellow {
  background: #ffbd2e;
}

.dot-green {
  background: #27c93f;
}

.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: var(--space-4);
  min-height: 320px;
  white-space: pre;
  overflow-x: hidden;
  word-break: break-all;
}

/* Terminal text color classes (applied by JS) */
.t-prompt {
  color: var(--silver);
}

.t-ascii {
  color: var(--gold-dim);
  font-size: 11px;
  line-height: 1.4;
  display: block;
}

.t-ok {
  color: var(--green);
}

.t-err {
  color: var(--red);
}

.t-arrow {
  color: var(--gold);
}

.t-dim {
  color: var(--text-muted);
}

.t-tag {
  color: var(--silver-dim);
}

.t-cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--silver);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

/* ── 11. ECOSYSTEM (MARQUEE) ───────────────────────────── */
#ecosystem {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--space-20);
  background: radial-gradient(circle at center, rgba(212, 175, 55, 0.03) 0%, transparent 70%);
  overflow: hidden;
  /* Crucial for marquee */
}

.ecosystem-track-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-10);
  width: 100%;
}

.logo-row-static {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-4);
}

.ecosystem-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  width: 100%;
}

.ecosystem-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

/* Marquee setup */
.marquee-row {
  display: flex;
  overflow: hidden;
  user-select: none;
  padding-block: var(--space-8);
  /* Increased room for hover */
  margin-inline: auto;
  max-width: 100%;
  /* Stronger double-sided fade */
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-content {
  display: flex;
  gap: var(--space-8);
  /* Wider gap for better focus */
  flex-shrink: 0;
  min-width: 100%;
}

/* Speed and direction */
.row-cli .marquee-content {
  animation: scroll-left-center 50s linear infinite reverse;
}

.marquee-row:hover .marquee-content {
  animation-play-state: paused;
}

@keyframes scroll-left-center {

  /* Starting at -25% makes the content centered on load */
  0% {
    transform: translateX(-25%);
  }

  100% {
    transform: translateX(-75%);
  }
}

/* Base Logo Item (Protocols) */
.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 84px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.012);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  transition: all 0.5s var(--ease-out);
  cursor: default;
  flex-shrink: 0;
  position: relative;
}

/* Ecosystem Mini Icon Style */
.logo-eco {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  padding: 16px;
}

.logo-item img {
  max-height: 40px;
  max-width: 100%;
  width: auto;
  height: auto;
  /* DEFAULT: Subtle Silver Silhouette */
  filter: grayscale(1) invert(1) brightness(1.2) opacity(0.5);
  transition: all 0.5s var(--ease-out);
  object-fit: contain;
  z-index: 1;
}

.logo-item:hover {
  border-color: var(--border-gold);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.7), 0 0 15px rgba(212, 175, 55, 0.1);
  transform: translateY(-4px) scale(1.04);
}

.logo-item:hover img {
  /* HOVER: Wake up to Original Brand Colors */
  filter: grayscale(0) invert(0) brightness(1) opacity(1);
  transform: scale(1.08);
}

/* Specific logic for Black-Brand Logos (OpenAI, Anthropic, etc.) on dark cards */
.logo-item.brand-light:hover img {
  /* For brands that are naturally black, we map them to the theme's Gold color on hover
     to ensure they remain visible against the dark background. */
  filter: sepia(1) saturate(8) hue-rotate(5deg) brightness(1) contrast(1.1);
}

/* Row-specific speeds */
.row-protocols .marquee-content {
  animation: scroll-left 45s linear infinite;
}

.row-cli .marquee-content {
  animation: scroll-left 60s linear infinite reverse;
}

.row-apps .marquee-content {
  animation: scroll-left 52s linear infinite;
}

.marquee-row:hover .marquee-content {
  animation-play-state: paused;
}

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.ecosystem-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
  margin: var(--space-4) 0;
  opacity: 0.2;
}

/* ── 12. FEATURES ────────────────────────────────────────── */
#features {
  background: linear-gradient(180deg, transparent 0%, rgba(212, 175, 55, 0.02) 50%, transparent 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--dur-std), transform var(--dur-std), box-shadow var(--dur-std);
}

.feature-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3), 0 0 30px var(--gold-glow);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  background: rgba(212, 175, 55, 0.06);
  flex-shrink: 0;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.feature-visual {
  margin-top: var(--space-2);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

/* Failover diagram */
.failover-diagram {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.flow-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.flow-secondary {
  padding-left: var(--space-4);
}

.flow-corner {
  color: var(--text-muted);
}

.flow-node {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.flow-node em {
  font-style: normal;
  font-size: 0.65rem;
  display: block;
}

.flow-bad {
  border-color: rgba(248, 113, 113, 0.3);
}

.flow-bad em {
  color: var(--red);
}

.flow-good {
  border-color: rgba(74, 222, 128, 0.3);
}

.flow-good em {
  color: var(--green);
}

.flow-arr {
  color: var(--text-muted);
}

.flow-arrow.flow-gold,
.flow-arr.flow-gold {
  color: var(--gold);
}

/* Code diff */
.code-diff {
  background: #0d0d10;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.diff-filename {
  padding: 6px var(--space-3);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.7rem;
}

.diff-body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.diff-line {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: 2px var(--space-2);
  border-radius: 3px;
  line-height: 1.6;
}

.diff-del {
  background: rgba(248, 113, 113, 0.08);
  color: var(--red);
}

.diff-add {
  background: rgba(74, 222, 128, 0.08);
  color: var(--green);
}

.diff-sign {
  width: 10px;
  flex-shrink: 0;
  font-weight: 700;
}

/* Screenshot wrapper */
.screenshot-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.08);
}

.feature-screenshot {
  width: 100%;
  display: block;
}

/* Privacy box */
.privacy-box {
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: rgba(212, 175, 55, 0.03);
}

.privacy-machine {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.privacy-machine-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-1);
}

.privacy-flow {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.privacy-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  color: var(--text-secondary);
}

.privacy-clipal {
  border-color: var(--border-gold);
  color: var(--gold);
  background: rgba(212, 175, 55, 0.06);
  animation: softGlow 2s ease-in-out infinite;
}

@keyframes softGlow {

  0%,
  100% {
    box-shadow: none;
  }

  50% {
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.2);
  }
}

.privacy-line {
  color: var(--text-muted);
  font-size: 0.7rem;
  padding-left: var(--space-3);
}

.privacy-badge-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--green);
  margin-top: var(--space-2);
  text-align: center;
  letter-spacing: 0.05em;
}

/* ── 13. HOW IT WORKS ────────────────────────────────────── */
#how-it-works {
  border-top: 1px solid var(--border);
}

.steps-layout {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-8);
  position: relative;
}

.step-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-gold);
  background: rgba(212, 175, 55, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  flex-shrink: 0;
}

.step-connector {
  width: 1px;
  flex: 1;
  min-height: 40px;
  background: linear-gradient(to bottom, var(--border-gold), transparent);
  margin-top: var(--space-3);
}

.step-right {
  padding-bottom: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.step:last-child .step-right {
  padding-bottom: 0;
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-caption {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.code-block {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-all;
}

.t-cmt {
  color: var(--text-muted);
}

.t-cmd {
  color: var(--silver);
  font-weight: 500;
}

.t-flag {
  color: var(--silver-dim);
}

.t-out {
  color: var(--text-muted);
}

.t-ok {
  color: var(--green);
}

.step-screenshot-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.1), 0 16px 48px rgba(0, 0, 0, 0.4);
}

.step-screenshot {
  width: 100%;
  display: block;
}

/* ── 14. DOWNLOAD ────────────────────────────────────────── */
#download {
  border-top: 1px solid var(--border);
}

.download-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.download-panel,
.community-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.download-panel-title,
.community-panel-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Platform tabs */
.platform-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.ptab {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--dur-fast);
}

.ptab:hover {
  border-color: var(--silver-dim);
  color: var(--text-secondary);
}

.ptab.active {
  border-color: var(--border-gold);
  background: rgba(212, 175, 55, 0.08);
  color: var(--gold);
}

.install-cmd-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.install-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.download-btn {
  width: 100%;
  justify-content: center;
  padding: 14px 24px;
}

.version-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.version-link {
  color: var(--gold-dim);
  transition: color var(--dur-fast);
}

.version-link:hover {
  color: var(--gold);
}

.security-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

/* Community */
.community-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.qr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.qr-img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-gold);
  box-shadow: 0 0 30px var(--gold-glow);
  width: 180px;
  height: 180px;
  object-fit: cover;
}

.qr-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.community-links {
  display: flex;
  gap: var(--space-3);
  margin-top: auto;
}

.community-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--dur-fast);
}

.community-link:hover {
  color: var(--text-primary);
}

/* ── 15. FOOTER ──────────────────────────────────────────── */
#site-footer {
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.01);
}

.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-block: var(--space-16);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-paiart {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.footer-paiart a {
  color: var(--gold-dim);
  transition: color var(--dur-fast);
}

.footer-paiart a:hover {
  color: var(--gold);
}

.footer-links {
  display: contents;
}

.footer-link-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link-heading {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.footer-link {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--dur-fast);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-6);
}

.footer-copy,
.footer-security {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ── 16. RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  section {
    padding-block: var(--space-16);
  }

.hero-container {
  display: grid;
  grid-template-columns: 1fr 540px;
  align-items: center;
  gap: var(--space-16);
  min-height: calc(100vh - 80px);
  padding-block: var(--space-16);
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: var(--space-12);
  }
}

  .hero-h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-sub {
    margin-inline: auto;
  }

  .eyebrow {
    justify-content: center;
  }

  .cta-group {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .terminal {
    max-width: 100%;
    font-size: 11.5px;
  }

  .terminal-body {
    min-height: 240px;
  }

  .nav-links {
    display: none;
  }

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

  .step {
    grid-template-columns: 56px 1fr;
    gap: var(--space-4);
  }

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

  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-block: var(--space-10);
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .platform-tabs {
    gap: var(--space-1);
  }

  .ptab {
    font-size: 0.72rem;
    padding: 5px 10px;
  }

  .logo-row {
    gap: var(--space-1);
  }

  .logo-item {
    width: 100px;
    height: 56px;
  }
}

/* ── NEW: LOGO ROW — scrollable on mobile ────────────────── */
.logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
}

/* ── NEW: FEATURE STRIPS ─────────────────────────────────── */
#features {
  border-top: 1px solid var(--border);
}

.fstrips {
  display: flex;
  flex-direction: column;
}

.fstrip {
  padding-block: var(--space-16);
  position: relative;
}

.fstrip-num {
  font-family: var(--font-display);
  font-size: clamp(5rem, 10vw, 9rem);
  font-weight: 800;
  color: rgba(212, 175, 55, 0.06);
  position: absolute;
  top: var(--space-8);
  right: 0;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
}

.fstrip-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.fstrip-rev .fstrip-content {
  direction: rtl;
}

.fstrip-rev .fstrip-content>* {
  direction: ltr;
}

.fstrip-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.fstrip-icon {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  background: rgba(212, 175, 55, 0.06);
  flex-shrink: 0;
}

.fstrip-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.fstrip-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 480px;
}

.fstrip-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.ftag {
  padding: 4px 12px;
  border: 1px solid var(--border-gold);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold-dim);
  background: rgba(212, 175, 55, 0.05);
  white-space: nowrap;
}

.fstrip-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.fstrip-screenshot-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.12),
    0 24px 64px rgba(0, 0, 0, 0.5);
  width: 100%;
}

.fstrip-screenshot-frame img {
  width: 100%;
  display: block;
}

.fstrip-sep {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* Failover diagram (fv-*) */
.fv-diagram {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  width: 100%;
}

.fv-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.fv-sub {
  padding-left: var(--space-4);
}

.fv-corner {
  color: var(--text-muted);
}

.fv-node {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
  color: var(--text-secondary);
  gap: 2px;
}

.fv-node small {
  font-size: 0.65rem;
  display: block;
}

.fv-bad {
  border-color: rgba(248, 113, 113, 0.3);
}

.fv-bad small {
  color: var(--red);
}

.fv-ok {
  border-color: rgba(74, 222, 128, 0.3);
}

.fv-ok small {
  color: var(--green);
}

.fv-arr {
  color: var(--text-muted);
  letter-spacing: -2px;
}

.fv-gold {
  color: var(--gold);
}

.fv-stats {
  display: flex;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.fv-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.fv-stat b {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
}

.fv-stat span {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: center;
}

/* Comparison viz (cmp-*) */
.cmp-viz {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
}

.cmp-block {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.cmp-label {
  padding: 6px var(--space-4);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.cmp-bad .cmp-label {
  background: rgba(248, 113, 113, 0.08);
  color: var(--red);
  border-bottom: 1px solid rgba(248, 113, 113, 0.15);
}

.cmp-ok .cmp-label {
  background: rgba(74, 222, 128, 0.08);
  color: var(--green);
  border-bottom: 1px solid rgba(74, 222, 128, 0.15);
}

.cmp-code {
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.8;
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-secondary);
  white-space: pre;
}

.cmp-vs {
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ── NEW: INSTALL SECTION ────────────────────────────────── */
#install {
  border-top: 1px solid var(--border);
}

.install-wrap {
  max-width: 800px;
  margin-inline: auto;
}

.install-tabs-nav {
  display: flex;
  gap: var(--space-2);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-6);
}

.itab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.itab:hover {
  color: var(--text-secondary);
}

.itab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.itab-panel {
  display: none;
}

.itab-panel.active {
  display: block;
}

.install-hint {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

/* AI prompt card */
.prompt-card {
  background: var(--bg-terminal);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.06);
}

.prompt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--space-4);
  background: rgba(212, 175, 55, 0.05);
  border-bottom: 1px solid var(--border-gold);
}

.prompt-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--gold);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gold);
  cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
}

.copy-btn:hover {
  background: rgba(212, 175, 55, 0.2);
}

.copy-btn.copied {
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.4);
  background: rgba(74, 222, 128, 0.08);
}

.prompt-text {
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

/* Manual install steps */
.manual-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mstep {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-4);
  align-items: start;
}

.mstep-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-gold);
  background: rgba(212, 175, 55, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold);
  flex-shrink: 0;
}

.mstep-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.mstep-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── RESPONSIVE ADDITIONS ────────────────────────────────── */
@media (max-width: 900px) {
  .fstrip-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .fstrip-rev .fstrip-content {
    direction: ltr;
  }

  .fstrip-num {
    font-size: 5rem;
    right: 0;
    top: 0;
    opacity: 0.5;
  }
}

@media (max-width: 768px) {
  .hero-container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    width: 100%;
  }

  .fstrip {
    padding-block: var(--space-10);
  }

  .itab {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}
/* ── 13. COMPARISON SECTION ──────────────────────────────── */
#why-clipal {
  background: radial-gradient(circle at bottom, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
}

.comparison-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.comp-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
  font-size: 0.95rem;
}

.comp-table th, 
.comp-table td {
  padding: var(--space-6) var(--space-8);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.comp-table thead th {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}

.comp-table td {
  color: var(--text-secondary);
}

.comp-table .col-clipal {
  color: var(--gold);
  font-weight: 700;
  background: rgba(212, 175, 55, 0.03);
  position: relative;
}

.comp-table tr:last-child td {
  border-bottom: none;
}

.why-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-10);
  padding-top: var(--space-6);
}

.why-highlights-header {
  margin-top: var(--space-12);
  margin-bottom: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px dashed var(--border);
  text-align: center;
}

.why-highlights-header h5 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
}

.why-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-left: var(--space-8);
  border-left: 1px solid var(--border-gold);
  position: relative;
  transition: all var(--dur-std);
}

.why-card:hover {
  transform: translateX(4px);
  border-left-color: var(--gold);
  border-left-width: 3px;
  padding-left: calc(var(--space-8) - 2px);
}

.why-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--gold-glow);
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  margin-bottom: var(--space-1);
}

.why-card-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dim);
}

.why-card h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.why-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ── 14. FAQ GRID ────────────────────────────────────────── */
#faq {
  padding-block: var(--space-24);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.faq-item {
  padding: var(--space-8);
}

.faq-q {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.faq-q::before {
  content: '?';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--gold-glow);
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  color: var(--gold);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.faq-a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .why-cards, .faq-grid {
    grid-template-columns: 1fr;
  }
}


/* ── EXTRACTED INLINE STYLES ─────────────────────────────── */

/* -- SVG Failover Diagram (Feature 02) -- */
.svg-bg {
  fill: rgba(0, 0, 0, 0.4);
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 1;
}

.svg-text {
  fill: #a0a0a0;
  font-size: 11px;
  text-anchor: middle;
  alignment-baseline: middle;
}

.svg-label {
  fill: #666;
  font-size: 10px;
  font-weight: bold;
  text-anchor: start;
}

.svg-key {
  fill: #1a1a1a;
  stroke: #333;
  stroke-width: 1;
  transition: all 0.2s;
}

.svg-err-text {
  fill: #ef4444;
  font-size: 9px;
  opacity: 0;
  font-weight: bold;
  text-anchor: middle;
}

.svg-ok-text {
  fill: #10b981;
  font-size: 9px;
  opacity: 0;
  font-weight: bold;
  text-anchor: middle;
}

.svg-arrow {
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 1.5;
  fill: none;
  stroke-linejoin: round;
}

@keyframes mDot1 {
  0%, 100% { opacity: 0; }
  5% { transform: translate(100px, 67px); opacity: 1; }
  15% { transform: translate(160px, 67px); opacity: 1; }
  16% { opacity: 0; }
}

@keyframes mDot2 {
  0%, 100% { opacity: 0; }
  25% { transform: translate(210px, 85px); opacity: 0; }
  26% { transform: translate(210px, 85px); opacity: 1; }
  35% { transform: translate(210px, 110px); opacity: 1; }
  36% { opacity: 0; }
}

@keyframes mDot3 {
  0%, 100% { opacity: 0; }
  45% { transform: translate(260px, 127px); opacity: 0; }
  46% { transform: translate(260px, 127px); opacity: 1; }
  52% { transform: translate(330px, 127px); }
  56% { transform: translate(330px, 97px); }
  65% { transform: translate(415px, 97px); opacity: 1; }
  66% { opacity: 0; }
}

@keyframes flashRed1 {
  16%, 26% { stroke: #ef4444; fill: rgba(239, 68, 68, 0.1); }
}

@keyframes showErr1 {
  16%, 26% { opacity: 1; }
}

@keyframes flashRed2 {
  36%, 46% { stroke: #ef4444; fill: rgba(239, 68, 68, 0.1); }
}

@keyframes showErr2 {
  36%, 46% { opacity: 1; }
}

@keyframes flashGreen {
  66%, 86% { stroke: #10b981; fill: rgba(16, 185, 129, 0.1); }
}

@keyframes showOk {
  66%, 86% { opacity: 1; }
}

.anim-dot1 { animation: mDot1 6s infinite linear; }
.anim-dot2 { animation: mDot2 6s infinite linear; }
.anim-dot3 { animation: mDot3 6s infinite linear; }
.anim-key1 { animation: flashRed1 6s infinite linear; }
.anim-err1 { animation: showErr1 6s infinite linear; }
.anim-key2 { animation: flashRed2 6s infinite linear; }
.anim-err2 { animation: showErr2 6s infinite linear; }
.anim-key3 { animation: flashGreen 6s infinite linear; }
.anim-ok   { animation: showOk 6s infinite linear; }

/* -- Blueprint / How It Works Section -- */
.blueprint-container {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
}

@media (min-width: 900px) {
  .blueprint-container {
    grid-template-columns: 240px 1fr 240px;
    align-items: center;
  }
}

.bp-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  z-index: 2;
}

.bp-core {
  background: rgba(30, 30, 30, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}

.bp-core::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.6;
}

.bp-item {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.bp-item:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.bp-core-item {
  background: rgba(10, 10, 10, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 1.5rem;
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease;
  overflow: hidden;
}

.bp-core-item:hover {
  transform: scale(1.02);
  border-color: rgba(168, 85, 247, 0.4);
}

.bp-core-item::after {
  content: '';
  position: absolute;
  top: 0;
  right: 100%;
  bottom: 0;
  width: 60px;
  background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.1), transparent);
  animation: bpScanline 3s linear infinite;
}

@keyframes bpScanline {
  0%   { right: 100%; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { right: -60px; opacity: 0; }
}

.bp-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bp-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
  animation: bpPulse 2s infinite;
}

@keyframes bpPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.bp-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-base);
  margin-bottom: 0.5rem;
}

.bp-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* Flow Lines */
.bp-flow {
  position: absolute;
  top: 50%;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
  z-index: 1;
  display: none;
}

@media (min-width: 900px) {
  .bp-flow { display: block; }
}

.bp-fline {
  position: absolute;
  top: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.05);
}

.bp-fline.left {
  left: 240px;
  right: calc(100% - 240px - 2rem);
  width: auto;
}

.bp-fline.right {
  left: auto;
  right: 240px;
  width: 4rem;
}

.bp-dot {
  position: absolute;
  top: -2px;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--gold);
  animation: bpFlowAnim 2s infinite linear;
}

.bp-fline.left .bp-dot  { animation-delay: 0s; }
.bp-fline.right .bp-dot {
  animation-delay: 0.5s;
  background: #3b82f6;
  box-shadow: 0 0 10px #3b82f6;
}

@keyframes bpFlowAnim {
  0%   { left: 0; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

/* Mini Terminals */
.bp-term {
  background: #000;
  border-radius: 8px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-top: 1rem;
  color: #a0a0a0;
  border: 1px solid #222;
  overflow-x: auto;
}

.bp-term .diff-add { color: #4ec9b0; }
.bp-term .str      { color: #ce9178; }

/* Flowcharts */
.fc-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 8px;
  border: 1px dashed rgba(255, 255, 255, 0.1);
  overflow-x: auto;
}

.fc-node {
  padding: 4px 8px;
  background: #222;
  border-radius: 4px;
  color: #ccc;
  white-space: nowrap;
}

.fc-box {
  padding: 4px 8px;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.4);
  border-radius: 4px;
  color: #e9d5ff;
  white-space: nowrap;
}

.fc-arr  { color: var(--gold); font-weight: bold; }

.fc-pool {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 2px solid #3b82f6;
  padding-left: 8px;
}

.fc-key {
  font-size: 0.65rem;
  padding: 2px 6px;
  background: #111;
  border-radius: 4px;
  color: #888;
  white-space: nowrap;
}

.fc-key.active {
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.5);
}

/* -- Mini SVG diagrams (Blueprint cards) -- */
.mini-bg {
  fill: rgba(0, 0, 0, 0.5);
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 1;
}

.mini-txt {
  fill: #a0a0a0;
  font-family: var(--font-mono);
  font-size: 9px;
  alignment-baseline: middle;
  text-anchor: middle;
}

.mini-arr {
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 1.5;
  stroke-dasharray: 3;
  fill: none;
}

@keyframes miniPack1 {
  0%   { transform: translateX(50px); opacity: 0; }
  10%  { opacity: 1; }
  40%  { transform: translateX(95px); opacity: 1; }
  50%  { opacity: 0; }
  100% { opacity: 0; }
}

@keyframes miniPack2 {
  0%, 40% { opacity: 0; }
  50%  { transform: translateX(180px); opacity: 0; }
  60%  { opacity: 1; }
  90%  { transform: translateX(225px); opacity: 1; }
  100% { opacity: 0; }
}

@keyframes scrubPulse {
  30%, 60% { stroke: rgba(168, 85, 247, 0.7); }
}

.m-dot1  { animation: miniPack1 3s infinite linear; fill: #ef4444; }
.m-dot2  { animation: miniPack2 3s infinite linear; fill: #10b981; }
.m-scrub { animation: scrubPulse 3s infinite linear; }

/* -- Blueprint path animations -- */
@keyframes bpPath1 {
  0%   { transform: translate(75px, 20px); opacity: 1; }
  20%  { transform: translate(120px, 20px); opacity: 1; }
  25%  { transform: translate(120px, 20px); opacity: 0; }
  100% { opacity: 0; }
}

@keyframes bpFlashR {
  20%, 30% { stroke: #ef4444; fill: rgba(239, 68, 68, 0.2); }
}

@keyframes bpPath2 {
  0%, 40% { opacity: 0; }
  45%  { transform: translate(125px, 30px); opacity: 1; }
  65%  { transform: translate(125px, 45px); opacity: 1; }
  70%  { opacity: 0; }
  100% { opacity: 0; }
}

@keyframes bpFlashG {
  65%, 85% { stroke: #10b981; fill: rgba(16, 185, 129, 0.2); }
}

.b-dot1 { animation: bpPath1 3s infinite linear; fill: #ef4444; }
.b-dot2 { animation: bpPath2 3s infinite linear; fill: #10b981; }
.b-k1   { animation: bpFlashR 3s infinite linear; }
.b-k2   { animation: bpFlashG 3s infinite linear; }

/* -- Header failover path animations -- */
@keyframes hfPath1 {
  0%   { transform: translateX(60px); opacity: 1; }
  25%  { transform: translateX(100px); opacity: 1; }
  30%  { opacity: 0; }
  100% { opacity: 0; }
}

@keyframes hfPath2 {
  0%, 45% { opacity: 0; }
  50%  { transform: translateX(190px); opacity: 1; }
  75%  { transform: translateX(230px); opacity: 1; }
  80%  { opacity: 0; }
  100% { opacity: 0; }
}

@keyframes hfBad {
  25%, 45% { stroke: #ef4444; fill: rgba(239, 68, 68, 0.2); }
}

@keyframes hfOk {
  75%, 95% { stroke: #10b981; fill: rgba(16, 185, 129, 0.2); }
}

.c-dot1 { animation: hfPath1 3s infinite linear; fill: #ef4444; }
.c-dot2 { animation: hfPath2 3s infinite linear; fill: #10b981; }
.c-b1   { animation: hfBad 3s infinite linear; }
.c-b2   { animation: hfOk 3s infinite linear; }