/* ==========================================================================
   Qirato (قیراط) - Persian Sovereign Aurum Design System
   Main Stylesheet: Variables, Reset, Typography, and Core Layout
   High-Contrast Light Mode + Obsidian Dark Mode
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* ------------------------------------------------------------------------
     Dark Mode (Default - Luxury Obsidian & Bullion Vault)
     ------------------------------------------------------------------------ */
  --primary: #D4AF37;
  --primary-light: #F3C64F;
  --primary-dark: #A37F00;
  --secondary: #B8860B;
  --gold-gilt: #E6CA65;
  --gold-gradient: linear-gradient(135deg, #F3C64F 0%, #D4AF37 50%, #B8860B 100%);
  --gold-gradient-hover: linear-gradient(135deg, #FFE088 0%, #E6CA65 50%, #D4AF37 100%);
  --gold-gradient-text: linear-gradient(135deg, #FFF1B8 0%, #E6CA65 40%, #D4AF37 100%);

  /* Status Indicators */
  --bull-green: #10B981;
  --bull-green-bg: rgba(16, 185, 129, 0.14);
  --bull-green-text: #34D399;
  --bear-red: #EF4444;
  --bear-red-bg: rgba(239, 68, 68, 0.14);
  --bear-red-text: #F87171;

  /* Surfaces & Backgrounds */
  --bg-deep: #080B11;
  --bg-surface: #0E1420;
  --bg-card: rgba(17, 24, 39, 0.88);
  --bg-card-hover: rgba(26, 36, 58, 0.95);
  --bg-glass: rgba(11, 16, 26, 0.85);
  --bg-input: rgba(0, 0, 0, 0.35);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(212, 175, 55, 0.22);
  --border-gold: rgba(212, 175, 55, 0.25);
  --border-gold-strong: rgba(212, 175, 55, 0.55);

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-inverse: #080B11;
  --text-gold: #F3C64F;

  /* Shadows & Glow */
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.7);
  --aurum-glow: 0 8px 30px rgba(212, 175, 55, 0.25);
  --aurum-glow-strong: 0 12px 45px rgba(212, 175, 55, 0.45);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --font-family: 'Vazirmatn', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1220px;
  --header-height: 76px;
}

/* --------------------------------------------------------------------------
   Light Mode (High-Contrast Haute-Horlogerie & Porcelain Alabaster)
   Specifically engineered for WCAG AA/AAA legibility in direct sunlight
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --primary: #946900;
  --primary-light: #7A5500;
  --primary-dark: #5C4000;
  --secondary: #8C6500;
  --gold-gilt: #B8860B;
  --gold-gradient: linear-gradient(135deg, #D4AF37 0%, #B8860B 60%, #8C6500 100%);
  --gold-gradient-hover: linear-gradient(135deg, #E6CA65 0%, #D4AF37 60%, #A37700 100%);
  --gold-gradient-text: linear-gradient(135deg, #785000 0%, #9E7000 45%, #6B4500 100%);

  /* Status Indicators */
  --bull-green: #047857;
  --bull-green-bg: rgba(4, 120, 87, 0.12);
  --bull-green-text: #047857;
  --bear-red: #B91C1C;
  --bear-red-bg: rgba(185, 28, 28, 0.12);
  --bear-red-text: #B91C1C;

  /* Surfaces & Backgrounds */
  --bg-deep: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;
  --bg-glass: rgba(248, 250, 252, 0.9);
  --bg-input: #F1F5F9;

  /* Borders & Dividers */
  --border-subtle: #E2E8F0;
  --border-card: rgba(184, 134, 11, 0.28);
  --border-gold: rgba(184, 134, 11, 0.35);
  --border-gold-strong: rgba(184, 134, 11, 0.7);

  /* Typography Colors - Guaranteed High Contrast */
  --text-primary: #0F172A;     /* Obsidian Black (Ratio 15.8:1) */
  --text-secondary: #334155;   /* Slate Charcoal (Ratio 9.6:1) */
  --text-muted: #64748B;       /* Neutral Pewter (Ratio 4.8:1) */
  --text-inverse: #FFFFFF;
  --text-gold: #785000;

  /* Shadows & Glow */
  --shadow-sm: 0 4px 16px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --aurum-glow: 0 8px 25px rgba(184, 134, 11, 0.2);
  --aurum-glow-strong: 0 12px 35px rgba(184, 134, 11, 0.32);
}

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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  overflow-x: clip;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  direction: rtl;
  text-align: right;
  overflow-x: clip;
  position: relative;
  min-height: 100vh;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 200ms ease, color 200ms ease;
}

/* Background atmospheric lighting */
body::before {
  content: '';
  position: fixed;
  top: -10vw;
  right: 5vw;
  width: 45vw;
  height: 45vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
}

body::after {
  content: '';
  position: fixed;
  bottom: 0vw;
  left: -5vw;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 134, 11, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
}

[data-theme="light"] body::before {
  background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
}
[data-theme="light"] body::after {
  background: radial-gradient(circle, rgba(184, 134, 11, 0.05) 0%, transparent 70%);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms ease-out;
}

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

button, input, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: transparent;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Typography & Accents
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.gold-gradient-text {
  background: var(--gold-gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-gold);
  margin-bottom: 0.85rem;
  backdrop-filter: blur(10px);
}

[data-theme="light"] .section-badge {
  background: rgba(184, 134, 11, 0.1);
  border-color: var(--border-gold-strong);
  color: #7A5500;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.45rem);
  margin-bottom: 0.85rem;
  font-weight: 800;
}

.section-subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.8;
}