/* ============================================
   SECUREARK DESIGN SYSTEM
   Ultra-Premium Dark Theme
   ============================================ */

/* ── Google Fonts Import ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Custom Properties ── */
:root {
  /* Primary Colors */
  --color-bg-primary: #050a18;
  --color-bg-secondary: #0a0f1e;
  --color-bg-tertiary: #0f1630;
  --color-bg-card: rgba(15, 22, 48, 0.6);
  --color-bg-glass: rgba(15, 22, 48, 0.4);

  /* Accent Colors */
  --color-accent-blue: #4f7df9;
  --color-accent-blue-light: #7ba1ff;
  --color-accent-blue-dark: #2d5bd7;
  --color-accent-gold: #d4a843;
  --color-accent-gold-light: #f0cc6e;
  --color-accent-gold-dark: #b08930;
  --color-accent-cyan: #00d4ff;
  --color-accent-purple: #8b5cf6;
  --color-accent-green: #10b981;
  --color-accent-red: #ef4444;

  /* Text Colors */
  --color-text-primary: #f0f2f8;
  --color-text-secondary: #a0aec0;
  --color-text-muted: #64748b;
  --color-text-accent: var(--color-accent-blue-light);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-accent-blue) 0%, var(--color-accent-purple) 100%);
  --gradient-gold: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-gold-light) 100%);
  --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  --gradient-card: linear-gradient(135deg, rgba(79, 125, 249, 0.08) 0%, rgba(139, 92, 246, 0.04) 100%);
  --gradient-hero-mesh: radial-gradient(ellipse at 20% 50%, rgba(79, 125, 249, 0.15) 0%, transparent 50%),
                        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
                        radial-gradient(ellipse at 50% 80%, rgba(212, 168, 67, 0.08) 0%, transparent 50%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.6);
  --shadow-glow-blue: 0 0 30px rgba(79, 125, 249, 0.3);
  --shadow-glow-gold: 0 0 30px rgba(212, 168, 67, 0.3);
  --shadow-glow-purple: 0 0 30px rgba(139, 92, 246, 0.3);

  /* Borders */
  --border-subtle: 1px solid rgba(79, 125, 249, 0.12);
  --border-glass: 1px solid rgba(255, 255, 255, 0.08);
  --border-accent: 1px solid rgba(79, 125, 249, 0.3);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-xl: 28px;
  --border-radius-full: 9999px;

  /* Typography */
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  --text-8xl: 6rem;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-wide: 1440px;
  --section-padding: var(--space-24) var(--space-6);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 600ms;
  --duration-slower: 800ms;

  /* Z-index layers */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-overlay: 900;
  --z-modal: 1000;
  --z-tooltip: 1100;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
  overflow-x: hidden;
  width: 100vw;
  max-width: 100%;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
}

::selection {
  background: rgba(79, 125, 249, 0.3);
  color: var(--color-text-primary);
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(79, 125, 249, 0.3);
  border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(79, 125, 249, 0.5);
}

/* ── Typography Base ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2rem, 5vw + 1rem, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw + 0.5rem, 2.75rem); }
h3 { font-size: clamp(1.4rem, 3vw + 0.5rem, 2rem); }
h4 { font-size: clamp(1.2rem, 2.5vw + 0.25rem, 1.5rem); }
h5 { font-size: clamp(1.1rem, 2vw + 0.25rem, 1.25rem); font-weight: 600; }
h6 { font-size: clamp(1rem, 1.5vw + 0.25rem, 1.125rem); font-weight: 600; }

p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

a {
  color: var(--color-accent-blue-light);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-accent-gold-light);
}

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

ul, ol {
  list-style: none;
}

/* ── Layout Utilities ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.section--dark {
  background: var(--color-bg-secondary);
}

.section--gradient {
  background: var(--gradient-dark);
}

/* ── Flex & Grid Utilities ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ── Text Utilities ── */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-accent { color: var(--color-accent-blue-light); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

/* ── Section Header Pattern ── */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent-blue);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: rgba(79, 125, 249, 0.08);
  border: 1px solid rgba(79, 125, 249, 0.15);
  border-radius: var(--border-radius-full);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent-blue);
  border-radius: 50%;
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Glass Effect ── */
.glass {
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: var(--border-glass);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  :root {
    --section-padding: var(--space-16) var(--space-6);
  }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-padding: var(--space-12) var(--space-4);
  }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--space-4); }
}