/* CAELORYN Landing Page Styles - Self-Contained Development Preview (Rev.B) */

:root {
  /* Fonts - Pure System Font Stack (Zero Dependency) */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, SF Pro Text, Consolas, "Liberation Mono", Menlo, monospace;

  /* Colors - Cyber-Dark Theme Palette */
  --bg-app: #080a0f;
  --bg-sidebar: #0b0f19;
  --bg-card: rgba(18, 24, 38, 0.65);
  --bg-card-hover: rgba(26, 34, 54, 0.8);
  --bg-control: rgba(13, 18, 30, 0.85);
  --bg-control-active: rgba(30, 41, 67, 0.9);
  
  /* Borders and Separators */
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-glow: rgba(0, 242, 254, 0.25);
  --border-color-glow-purple: rgba(162, 89, 255, 0.25);

  /* Brand and State Accents */
  --color-primary: #00F2FE;
  --color-primary-dark: #4FACFE;
  --color-secondary: #a259ff;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;

  /* Typography Colors */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-muted-dark: #6b7280;
  --text-accent: #00F2FE;

  /* Spacing System */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Elevation and Glassmorphism */
  --glass-blur: blur(12px);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 15px rgba(0, 242, 254, 0.15);
  --shadow-glow-purple: 0 0 15px rgba(162, 89, 255, 0.15);

  /* Animation and Transition */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
}

/* Reset & Global Canvas */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* 01. Brand Header & Navigation */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 10, 15, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md) 0;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: #ffffff;
}

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.5));
}

.badge-dev-preview {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: var(--border-radius-sm);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid var(--border-color-glow);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text-accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.6rem 1.25rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #080a0f;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-control);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--bg-control-active);
  border-color: var(--border-color-glow);
  color: var(--color-primary);
}

/* 02. Hero Section */
.hero-section {
  padding: var(--space-2xl) 0 var(--space-xl);
  text-align: center;
  position: relative;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-2xs) var(--space-md);
  border-radius: 9999px;
  background: rgba(162, 89, 255, 0.1);
  border: 1px solid var(--border-color-glow-purple);
  color: var(--color-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 40%, var(--color-primary) 80%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subheadline {
  max-width: 780px;
  margin: 0 auto var(--space-xl);
  font-size: 1.1rem;
  color: var(--text-muted);
}

.cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

/* Architecture Flow Preview Frame */
.architecture-frame {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  max-width: 900px;
  margin: 0 auto;
}

.arch-flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  align-items: center;
}

.arch-node {
  background: var(--bg-control);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--space-md);
  text-align: center;
  position: relative;
  transition: border-color var(--transition-fast);
}

.arch-node:hover {
  border-color: var(--border-color-glow);
}

.arch-node-title {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
  font-family: var(--font-mono);
  margin-bottom: var(--space-2xs);
}

.arch-node-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.arch-arrow {
  color: var(--text-muted-dark);
  font-size: 1.2rem;
  display: none;
}

@media (min-width: 768px) {
  .arch-arrow {
    display: block;
  }
}

/* 03. Live SPICA API Liveness Bar */
.spica-liveness-bar {
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-sm) 0;
  margin: var(--space-2xl) 0;
}

.liveness-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.status-indicator-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-warning);
  box-shadow: 0 0 8px var(--color-warning);
  transition: all var(--transition-fast);
}

.status-indicator-dot.online {
  background-color: var(--color-success);
  box-shadow: 0 0 10px var(--color-success);
}

.status-indicator-dot.offline {
  background-color: var(--color-warning);
  box-shadow: 0 0 8px var(--color-warning);
}

.status-text {
  color: var(--text-main);
}

.status-detail {
  color: var(--text-muted-dark);
  font-size: 0.75rem;
}

/* 04. Capabilities Matrix */
.capabilities-section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.capability-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.capability-card:hover {
  border-color: var(--border-color-glow);
  transform: translateY(-2px);
}

.cap-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.cap-name {
  font-weight: 700;
  font-size: 1.1rem;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.lifecycle-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 3px 8px;
  border-radius: var(--border-radius-sm);
  text-transform: uppercase;
  font-weight: 600;
}

.badge-research {
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.badge-baseline {
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--color-primary);
}

.badge-experimental {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--color-warning);
}

.badge-foundation {
  background: rgba(162, 89, 255, 0.15);
  border: 1px solid rgba(162, 89, 255, 0.3);
  color: var(--color-secondary);
}

.cap-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 05. Evidence-Driven Pipeline Section */
.pipeline-section {
  padding: var(--space-2xl) 0;
  background: rgba(11, 15, 25, 0.5);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.pipeline-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
}

.pipeline-step {
  background: var(--bg-control);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-main);
}

.pipeline-arrow {
  color: var(--color-primary);
  font-weight: bold;
}

.motto-box {
  margin-top: var(--space-2xl);
  text-align: center;
  font-size: 1.25rem;
  font-weight: 600;
  font-style: italic;
  color: var(--color-primary);
}

/* 06. Prototype Pricing Calibration */
.pricing-section {
  padding: var(--space-2xl) 0;
}

.pricing-notice-banner {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--border-color-glow-purple);
  color: var(--color-warning);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.tier-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-2xs);
}

.tier-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted-dark);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.tier-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 07. Footer */
.landing-footer {
  border-top: 1px solid var(--border-color);
  padding: var(--space-xl) 0;
  background: var(--bg-app);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Rules */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2rem;
  }
  .pipeline-arrow {
    display: none;
  }
}