/* AnzenPay - Custom Styles with Light/Dark Theme Support
   Inspired by the DafaPlus high-contrast dark aesthetic */

/* ===== DESIGN TOKENS ===== */
:root {
  --font-display:   'Rajdhani', sans-serif;
  --font-body:      'Barlow', sans-serif;
  --font-condensed: 'Barlow Condensed', sans-serif;
  --font-code:      'Fira Code', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --transition: 0.18s ease;
}

/* ===== DARK THEME (Default) ===== */
:root,
[data-theme="dark"] {
  --red: #e8192c;
  --gold: #f0a500;
  --green: #00c853;
  --red-dim: #991220;
  --gold-dim: #7a5200;
  --green-dim: #005a22;

  --bg-base: #0a0c10;
  --bg-surface: #111520;
  --bg-card: #161b27;
  --bg-card-hover: #1c2336;
  --bg-input: #0d1119;

  --border: #1e2535;
  --border-bright: #2e3a55;

  --text-primary: #f0f2f8;
  --text-secondary: #8a93ab;
  --text-muted: #4a5268;

  --hero-bg: linear-gradient(135deg, #080b12 0%, #0d1322 50%, #0a0e18 100%);
  --cta-bg: linear-gradient(135deg, #111520 0%, #1a1020 50%, #111520 100%);
  --glow-red: rgba(232, 25, 44, 0.15);
  --glow-gold: rgba(240, 165, 0, 0.1);
  --shadow-card: rgba(0, 0, 0, 0.4);
  --shadow-navbar: rgba(0, 0, 0, 0.5);
  --modal-backdrop: rgba(0, 0, 0, 0.7);
  --logo-bar-opacity: 0.3;

  --grid-color: rgba(30, 37, 53, 0.5);
  --card-glass: rgba(22, 27, 39, 0.85);
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
  --red: #d4152a;
  --gold: #d99200;
  --green: #00a844;
  --red-dim: #fde8ea;
  --gold-dim: #fef3d8;
  --green-dim: #e0f7ea;

  --bg-base: #f5f6f8;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f1f5;
  --bg-input: #f5f6f8;

  --border: #e2e4ea;
  --border-bright: #c8ccd6;

  --text-primary: #1a1d26;
  --text-secondary: #5a6070;
  --text-muted: #9098a8;

  --hero-bg: linear-gradient(135deg, #1a2040 0%, #252e55 50%, #1a2040 100%);
  --cta-bg: linear-gradient(135deg, #1a2040 0%, #2a1830 50%, #1a2040 100%);
  --glow-red: rgba(232, 25, 44, 0.08);
  --glow-gold: rgba(240, 165, 0, 0.06);
  --shadow-card: rgba(0, 0, 0, 0.06);
  --shadow-navbar: rgba(0, 0, 0, 0.08);
  --modal-backdrop: rgba(0, 0, 0, 0.4);
  --logo-bar-opacity: 0.15;

  --grid-color: rgba(200, 204, 214, 0.3);
  --card-glass: rgba(255, 255, 255, 0.85);
}

/* Light theme overrides for specific elements */
[data-theme="light"] .hero-gradient,
[data-theme="light"] .cta-gradient {
  color: #f0f2f8;
}

[data-theme="light"] .hero-gradient .text-text-secondary,
[data-theme="light"] .cta-gradient .text-text-secondary {
  color: #c0c8e0;
}

[data-theme="light"] .navbar {
  background-color: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .navbar .font-display span {
  text-shadow: none;
}

[data-theme="light"] .glow-red { text-shadow: none; }
[data-theme="light"] .glow-gold { text-shadow: none; }
[data-theme="light"] .glow-green { text-shadow: none; }
[data-theme="light"] .stat-number { text-shadow: none; }

[data-theme="light"] .feature-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .code-block {
  background: #1e293b;
  color: #e2e8f0;
  border-color: #334155;
}

[data-theme="light"] .btn-secondary {
  color: var(--text-primary);
}

[data-theme="light"] .btn-secondary:hover {
  background-color: rgba(212, 21, 42, 0.05);
  border-color: var(--red);
  color: var(--red);
}

[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
}

/* Theme toggle button */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid var(--border);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition), background-color var(--transition);
}

.theme-toggle:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ===== GENERAL STYLES ===== */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* ===== HERO ===== */

.hero-gradient {
  background: var(--hero-bg);
  position: relative;
  overflow: hidden;
}

/* Grid pattern overlay (DafaPlus-inspired) */
.hero-gradient .hero-grid,
.cta-gradient .hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* Glow orbs */
.hero-gradient::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 15%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--glow-red) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.hero-gradient::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--glow-gold) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

/* Named glow elements (alternative to pseudo-elements) */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}
.hero-glow--red {
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--red), transparent);
  top: -100px; left: -50px;
}
.hero-glow--gold {
  width: 300px; height: 300px;
  background: radial-gradient(circle, var(--gold), transparent);
  bottom: -80px; right: 10%;
  opacity: 0.15;
}

/* ===== CTA GRADIENT ===== */

.cta-gradient {
  background: var(--cta-bg);
  position: relative;
  overflow: hidden;
}

.cta-gradient::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--glow-red) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

/* ===== NAVBAR ===== */

.navbar {
  transition: padding var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.navbar.scrolled {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  box-shadow: 0 2px 20px var(--shadow-navbar);
}

/* ===== MODAL ===== */

.modal-overlay {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-overlay.active .modal-content {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-content {
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ===== MOBILE NAV ===== */

.mobile-nav {
  transform: translateX(100%);
  transition: transform var(--transition);
}

.mobile-nav.open {
  transform: translateX(0);
}

/* ===== FAQ ACCORDION ===== */

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer.open {
  max-height: 500px;
}

.faq-chevron {
  transition: transform var(--transition);
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-item {
  transition: border-color var(--transition);
}

.faq-item:hover {
  border-color: var(--border-bright);
}

.faq-item.open {
  border-color: var(--gold-dim);
}

/* ===== FEATURE CARDS ===== */

.feature-card {
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  backdrop-filter: blur(8px);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--shadow-card);
  border-color: var(--border-bright);
}

/* Gradient accent line on top of card on hover */
.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--gold));
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.feature-card:hover::after {
  opacity: 1;
}

/* ===== PRICING ===== */

.pricing-card-featured {
  border: 2px solid var(--red);
  position: relative;
  box-shadow: 0 0 40px rgba(232, 25, 44, 0.15), 0 0 80px rgba(232, 25, 44, 0.05);
}

/* ===== STATS ===== */

.stat-number {
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px rgba(240, 165, 0, 0.4);
}

/* ===== CODE BLOCK ===== */

.code-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-code);
  font-size: 0.875rem;
  line-height: 1.7;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient accent on code block top */
.code-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--gold), var(--green));
}

.code-block .keyword { color: #e8192c; }
.code-block .string { color: #00c853; }
.code-block .comment { color: var(--text-muted); }
.code-block .function { color: #f0a500; }
.code-block .number { color: #4dabf7; }

/* ===== DROPDOWN MENU ===== */

.nav-dropdown {
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  backdrop-filter: blur(12px);
}

.nav-dropdown-trigger:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== METRIC CARD ===== */

.metric-card {
  border-top: 3px solid var(--gold);
  transition: transform var(--transition), box-shadow var(--transition);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-card);
}

/* ===== STEP CONNECTOR ===== */

.step-connector {
  width: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--gold));
}

/* ===== BUTTONS ===== */

.btn-primary {
  background: linear-gradient(135deg, var(--red), #c0001a);
  color: #ffffff;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-family: var(--font-condensed);
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 20px rgba(232, 25, 44, 0.35);
  display: inline-block;
}

.btn-primary:hover {
  box-shadow: 0 6px 28px rgba(232, 25, 44, 0.5);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(232, 25, 44, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  padding: 0.75rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-condensed);
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: 1px solid var(--border-bright);
  transition: border-color var(--transition), background-color var(--transition), color var(--transition);
  display: inline-block;
}

.btn-secondary:hover {
  border-color: var(--gold);
  background-color: rgba(240, 165, 0, 0.05);
  color: var(--gold);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-condensed);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 12px 24px;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  display: inline-block;
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

/* ===== TESTIMONIAL CARD ===== */

.testimonial-card {
  border-left: 3px solid var(--gold);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-card);
  border-left-color: var(--red);
}

/* ===== CERTIFICATION BADGE ===== */

.cert-badge {
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.cert-badge:hover {
  border-color: var(--gold);
  box-shadow: 0 0 16px rgba(240, 165, 0, 0.1);
  transform: translateY(-2px);
}

/* ===== GLOW TEXT ===== */

.glow-red {
  text-shadow: 0 0 12px rgba(232, 25, 44, 0.6);
}

.glow-gold {
  text-shadow: 0 0 12px rgba(240, 165, 0, 0.5);
}

.glow-green {
  text-shadow: 0 0 12px rgba(0, 200, 83, 0.5);
}

/* ===== ANIMATIONS ===== */

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.animate-pulse-glow {
  animation: pulse-glow 1.5s infinite;
}

/* Fade-in on scroll (used with JS IntersectionObserver) */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ===== SCROLLBAR ===== */

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }

/* ===== SECTION HELPERS ===== */

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

/* Eyebrow badge (pill label above headings) */
.eyebrow-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--border-bright);
  background: var(--card-glass);
  backdrop-filter: blur(8px);
  font-family: var(--font-condensed);
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ===== HERO GRID (standalone element, DafaPlus-style) ===== */

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 900px) {
  .hero-glow { display: none; }
}