/* variables.css: Design System Foundation */
/* Palette: WhatsApp Green + Steel Dark + Warm Off-white */

:root {
  /* Color Palette - Dark Steel Theme */
  --bg-dark: #0f1117;
  --bg-card: #181b23;
  --bg-card-hover: #1e222c;
  --bg-surface: #141720;

  /* Text - Warm Steel Off-white */
  --text-primary: #e8ecf1;
  --text-secondary: #8b95a5;
  --text-muted: #5c6577;
  --text-tertiary: #4a5264;

  /* Accents & Gradients (Green / Emerald feel) */
  --accent-green: #25D366;
  /* WhatsApp green - primary */
  --accent-green-dark: #128C7E;
  /* Deep WhatsApp green - gradient start, lower accent rings */
  --accent-emerald: #10b981;
  /* Emerald - secondary */
  --accent-mint: #34d399;
  /* Mint - lighter accent */
  --accent-teal: #14b8a6;
  /* Teal for variety */
  --accent-amber: #f59e0b;
  /* Amber for warnings */
  --accent-wa: #25D366;
  /* WhatsApp Green */

  /* Legacy compat aliases */
  --accent-blue: #25D366;
  --accent-purple: #10b981;
  --accent-pink: #34d399;

  --gradient-primary: linear-gradient(135deg, #25D366, #10b981);
  --gradient-neon: linear-gradient(135deg, #34d399 0%, #25D366 100%);
  --gradient-wa: linear-gradient(135deg, #128C7E, #25D366);
  --gradient-subtle: linear-gradient(135deg, rgba(37, 211, 102, 0.15), rgba(16, 185, 129, 0.05));

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.14);

  /* Aliases for legacy references */
  --bg-lighter: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);

  /* Typography */
  /* Noto Sans variants load via unicode-range — zero payload for Latin users */
  --font-sans: 'Inter', 'Noto Sans Arabic', 'Noto Sans Devanagari', 'Noto Sans Bengali',
               'Noto Sans Tamil', 'Noto Sans Telugu', 'Noto Sans Malayalam', 'Noto Sans JP',
               -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Outfit', var(--font-sans);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-12: 4.5rem;
  --space-16: 6rem;

  /* Borders & Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Semantic Status Colors (dashboards + badges) */
  --color-success: #25D366;
  --color-success-bg: rgba(37, 211, 102, 0.12);
  --color-error: #ef4444;
  --color-error-light: #f87171;
  --color-error-bg: rgba(239, 68, 68, 0.12);
  --color-warning: #f59e0b;
  --color-warning-light: #fbbf24;
  --color-warning-bg: rgba(251, 191, 36, 0.12);
  --color-info: #60a5fa;
  --color-info-bg: rgba(59, 130, 246, 0.12);
  --color-purple: #a78bfa;

  /* Shadows */
  --shadow-glow: 0 0 20px rgba(37, 211, 102, 0.2);
  --shadow-glow-strong: 0 0 30px rgba(37, 211, 102, 0.3);
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.15), 0 2px 4px -1px rgba(0, 0, 0, 0.08);
  --shadow-elevated: 0 10px 40px -10px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul {
  list-style: none;
}

/* Utility classes */
.relative-z {
  position: relative;
  z-index: 2;
}

.overflow-hidden {
  overflow: hidden;
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-16 {
  margin-top: var(--space-16);
}

/* Scroll animation utilities */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}