/* ==========================================================================
   Loyal Logic — Official Corporate & Research Portal Stylesheet
   Theme: High-Performance Systems, Deep Engineering, Sovereign Computing
   ========================================================================== */

:root {
  --bg-primary: #08090d;
  --bg-secondary: #0f1219;
  --bg-tertiary: #161b26;
  --bg-card: rgba(18, 22, 32, 0.75);
  --bg-card-hover: rgba(26, 32, 48, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.4);
  --border-active: rgba(6, 182, 212, 0.5);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-primary: #6366f1;       /* Indigo */
  --accent-secondary: #06b6d4;     /* Cyan */
  --accent-tertiary: #10b981;      /* Emerald */
  --accent-warning: #f59e0b;       /* Amber */

  --glow-primary: rgba(99, 102, 241, 0.22);
  --glow-secondary: rgba(6, 182, 212, 0.18);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Background grid & subtle glow canvas */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    radial-gradient(circle at 50% -10%, rgba(99, 102, 241, 0.14) 0%, transparent 60%),
    radial-gradient(circle at 85% 35%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 15% 75%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
  z-index: -1;
}

/* Container */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(8, 9, 13, 0.82);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--transition-normal);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 0 16px var(--glow-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.12);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.35);
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  background: rgba(99, 102, 241, 0.22);
  border-color: rgba(99, 102, 241, 0.6);
  color: #fff;
  transform: translateY(-1px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 96px 0 64px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 28px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: 0 0 10px var(--accent-secondary);
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  max-width: 960px;
  margin: 0 auto 24px;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 70%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: clamp(1.1rem, 2vw, 1.28rem);
  color: var(--text-muted);
  max-width: 740px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #4f46e5);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 6px 24px var(--glow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Metrics bar */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 960px;
  margin: 0 auto;
}

.metric-item {
  text-align: left;
  border-left: 2px solid var(--border-subtle);
  padding-left: 16px;
}

.metric-item .val {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.metric-item .lbl {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section {
  padding: 80px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.7rem);
  margin-bottom: 14px;
}

/* ==========================================================================
   Flagship Feature: DocSanitizer Showcase
   ========================================================================== */
.flagship-card {
  background: linear-gradient(180deg, rgba(22, 27, 40, 0.85) 0%, rgba(13, 16, 24, 0.95) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 44px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  transition: border-color var(--transition-normal);
}

.flagship-card:hover {
  border-color: rgba(99, 102, 241, 0.55);
}

.flagship-card::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.flagship-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.flagship-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.flagship-brand h3 {
  font-size: 1.85rem;
  font-weight: 800;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-badge.live {
  background: rgba(16, 185, 129, 0.14);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.status-badge.research {
  background: rgba(6, 182, 212, 0.14);
  color: #38bdf8;
  border: 1px solid rgba(6, 182, 212, 0.35);
}

.status-badge.poc {
  background: rgba(245, 158, 11, 0.14);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.flagship-desc {
  font-size: 1.12rem;
  color: #cbd5e1;
  max-width: 820px;
  margin-bottom: 28px;
}

.flagship-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.flagship-feat-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.flagship-feat-item strong {
  display: block;
  font-size: 0.95rem;
  color: #f1f5f9;
  margin-bottom: 4px;
}

.flagship-feat-item span {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
  display: block;
}

.flagship-action {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   R&D & Systems Labs Grid
   ========================================================================== */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.lab-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
}

.lab-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.lab-card-top {
  margin-bottom: 24px;
}

.lab-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.lab-tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.lab-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.lab-card p {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.lab-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-secondary);
}

.lab-card:hover .lab-card-bottom {
  color: #fff;
}

/* ==========================================================================
   Principles / Promises Section
   ========================================================================== */
.promises-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.promise-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
}

.promise-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-primary);
  margin-bottom: 20px;
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.promise-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.promise-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Terminal / Philosophy Block
   ========================================================================== */
.terminal-block {
  background: #050608;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: #cbd5e1;
  max-width: 760px;
  margin: 48px auto 0;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  overflow-x: auto;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #f59e0b; }
.terminal-dot.green { background: #10b981; }

.terminal-title {
  margin-left: 6px;
  color: var(--text-dim);
  font-size: 0.75rem;
}

.terminal-line {
  margin-bottom: 6px;
}
.terminal-line .kw { color: #f43f5e; }
.terminal-line .fn { color: #38bdf8; }
.terminal-line .str { color: #34d399; }
.terminal-line .comment { color: #64748b; font-style: italic; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 36px;
  background: var(--bg-secondary);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--text-main);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 840px) {
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
  }
  .flagship-card {
    padding: 28px 24px;
  }
}

@media (max-width: 520px) {
  .hero {
    padding: 60px 0 40px;
  }
  .metrics-strip {
    grid-template-columns: 1fr;
  }
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }
}