/* ===================================================================
   İŞ GÖRƏN AI — BEHBUDLU.COM LUXURY BRAND DESIGN SYSTEM
   Signature Crimson (#a81e14), Pitch Black (#030303), Plus Jakarta Sans
   =================================================================== */

:root {
  /* behbudlu.com Official Signature Brand Palette */
  --brand-red: #a81e14;          /* Deeper, sophisticated crimson */
  --brand-red-hover: #cf291d;    /* Vibrant carmine */
  --brand-red-glow: rgba(168, 30, 20, 0.4);
  --brand-red-light: rgba(168, 30, 20, 0.06);
  --brand-red-border: rgba(168, 30, 20, 0.25);

  /* Deep Obsidian Backgrounds */
  --bg-primary: #030303;        /* Pitch black aura */
  --bg-secondary: #0a0a0a;      /* Dark charcoal */
  --bg-card: rgba(10, 10, 10, 0.72);
  --bg-card-hover: rgba(18, 18, 18, 0.88);
  --bg-card-active: rgba(25, 25, 25, 0.95);
  
  --primary: var(--brand-red);
  --primary-hover: var(--brand-red-hover);
  --primary-glow: var(--brand-red-glow);

  --accent-gold: #fbbf24;
  --accent-green: #34d399;
  --accent-rose: #f43f5e;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-bright: rgba(255, 255, 255, 0.15);
  --border-glow: rgba(168, 30, 20, 0.45);

  /* Typography */
  --text-main: #e2e8f0;         /* Soft off-white */
  --text-medium: #cbd5e1;       /* Slate 300 */
  --text-muted: #94a3b8;        /* Slate 400 */
  --text-dim: #64748b;          /* Slate 500 */
  --text-highlight-red: #fca5a5;

  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 100px;         /* behbudlu.com pill shape */

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  --shadow-glass: 0 16px 40px -8px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 50px rgba(168, 30, 20, 0.25);
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: dark;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(168, 30, 20, 0.18) 0%, transparent 60%),
    radial-gradient(circle at 85% 35%, rgba(110, 19, 13, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 15% 75%, rgba(168, 30, 20, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
}

/* CUSTOM SCROLLBAR (behbudlu.com style) */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #222222;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--brand-red);
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 { letter-spacing: -0.035em; }
h2 { letter-spacing: -0.03em; }

/* SIGNATURE BEHBUDLU.COM TEXT HIGHLIGHT */
.gradient-text {
  background: linear-gradient(120deg, #ffffff 0%, #f5d0cd 55%, var(--brand-red-hover) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 800;
  filter: drop-shadow(0 0 16px rgba(168, 30, 20, 0.3));
}

.mono {
  font-family: var(--font-mono);
}

/* LAYOUT CONTAINER */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* GLASSMORPHISM CARD */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-smooth);
}

.glass-panel:hover {
  border-color: var(--border-bright);
}

/* BUTTONS (behbudlu.com PILL SHAPE) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-smooth);
  border: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

/* Primary Crimson Button with rich depth */
.btn-primary {
  background: linear-gradient(135deg, var(--brand-red) 0%, #6e130d 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 24px -6px rgba(168, 30, 20, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-red-hover) 0%, var(--brand-red) 100%);
  box-shadow: 0 12px 32px -4px rgba(168, 30, 20, 0.75);
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button (Refined dark glass) */
.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.28);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.875rem;
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.5);
}

/* BADGES */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.badge-glow {
  background: rgba(168, 30, 20, 0.12);
  color: #fca5a5;
  border: 1px solid rgba(168, 30, 20, 0.35);
  box-shadow: 0 0 25px rgba(168, 30, 20, 0.2);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-red-hover);
  box-shadow: 0 0 10px var(--brand-red-hover);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* ===================================================================
   NAVIGATION BAR
   =================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 18px 0;
  transition: all var(--transition-smooth);
  background: rgba(3, 3, 3, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar.scrolled {
  padding: 14px 0;
  background: rgba(3, 3, 3, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.85);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #ffffff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--brand-red), #6e130d);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  box-shadow: 0 0 20px rgba(168, 30, 20, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

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

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: #ffffff;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
  padding: 160px 0 90px 0;
  text-align: center;
  position: relative;
}

.hero-badge-wrap {
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.3rem, 5.5vw, 4.2rem);
  max-width: 960px;
  margin: 0 auto 24px auto;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 36px auto;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
  max-width: 820px;
  margin: 0 auto;
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-val {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
}

.metric-label {
  font-size: 0.8125rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================================================================
   INTERACTIVE ANATOMY: BEYİN VƏ BƏDƏN SİMULYATORU
   =================================================================== */
.anatomy-section {
  padding: 90px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 54px auto;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--brand-red-hover);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
  margin-bottom: 16px;
}

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

.anatomy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.organ-card {
  padding: 28px 24px;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: all var(--transition-smooth);
}

.organ-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  transition: all var(--transition-smooth);
}

.organ-card:hover, .organ-card.active {
  transform: translateY(-4px);
  border-color: rgba(168, 30, 20, 0.45);
  background: var(--bg-card-hover);
  box-shadow: 0 0 30px rgba(168, 30, 20, 0.15);
}

.organ-card.brain::before { background: var(--brand-red); }
.organ-card.ears::before { background: #cf291d; }
.organ-card.eyes::before { background: #e8c9c6; }
.organ-card.hands::before { background: #f59e0b; }
.organ-card.heart::before { background: #ec4899; }

.organ-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
}

.organ-card.brain .organ-icon-wrap { color: #fca5a5; box-shadow: 0 0 20px rgba(168, 30, 20, 0.35); }
.organ-card.ears .organ-icon-wrap { color: #f87171; box-shadow: 0 0 20px rgba(207, 41, 29, 0.35); }
.organ-card.eyes .organ-icon-wrap { color: #fecdd3; box-shadow: 0 0 20px rgba(232, 201, 198, 0.3); }
.organ-card.hands .organ-icon-wrap { color: #fbbf24; box-shadow: 0 0 20px rgba(245, 158, 11, 0.25); }
.organ-card.heart .organ-icon-wrap { color: #f472b6; box-shadow: 0 0 20px rgba(236, 72, 153, 0.25); }

.organ-title {
  font-size: 1.25rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.organ-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.organ-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.organ-tools {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tool-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 4px 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  color: #cbd5e1;
}

/* ===================================================================
   MÜQAYİSƏ CƏDVƏLİ
   =================================================================== */
.comparison-section {
  padding: 90px 0;
}

.comparison-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-xl);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  background: rgba(168, 30, 20, 0.1);
  color: #ffffff;
}

.comparison-table th.col-agent {
  color: #fca5a5;
  background: rgba(168, 30, 20, 0.18);
  border-bottom-color: rgba(168, 30, 20, 0.4);
}

.comparison-table td.col-feature {
  font-weight: 600;
  color: var(--text-main);
}

.status-bad {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #f87171;
  font-size: 0.9375rem;
}

.status-good {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #34d399;
  font-weight: 600;
  font-size: 0.9375rem;
}

/* ===================================================================
   CURRICULUM (4 DƏRSLİK İNTENSİV TƏDRİS PROQRAMI - TABS)
   =================================================================== */
.curriculum-section {
  padding: 90px 0;
  position: relative;
}

.curriculum-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 13px 26px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: linear-gradient(135deg, rgba(168, 30, 20, 0.28), rgba(110, 19, 13, 0.28));
  border-color: var(--brand-red);
  color: #ffffff;
  box-shadow: 0 0 25px rgba(168, 30, 20, 0.35);
}

.curriculum-content {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.curriculum-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.curriculum-card {
  padding: 38px;
  border-radius: var(--radius-xl);
}

.curriculum-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.week-title {
  font-size: 1.5rem;
}

.week-badge {
  background: rgba(168, 30, 20, 0.15);
  color: #fca5a5;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid rgba(168, 30, 20, 0.35);
}

.curriculum-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.curriculum-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.curriculum-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-main);
  font-size: 0.975rem;
  line-height: 1.6;
}

.curriculum-list li svg {
  min-width: 20px;
  color: var(--brand-red-hover);
  margin-top: 3px;
}

.curriculum-highlight-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.highlight-title {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #ffffff;
}

.highlight-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.highlight-deliverable {
  background: rgba(168, 30, 20, 0.12);
  border: 1px solid rgba(168, 30, 20, 0.3);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  color: #fca5a5;
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ===================================================================
   MONETIZATION & DELIVERABLES
   =================================================================== */
.monetization-section {
  padding: 90px 0;
}

.monetization-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.money-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.money-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--brand-red-hover);
  margin-bottom: 12px;
}

.money-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.money-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.money-income {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.income-label {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.income-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #34d399;
}

/* MODULAR HIGHLIGHT BANNER */
.modular-highlight-banner {
  margin-top: 36px;
  padding: 26px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(168, 30, 20, 0.35);
  background: linear-gradient(135deg, rgba(168, 30, 20, 0.1), rgba(10, 10, 10, 0.7));
  box-shadow: 0 0 35px rgba(168, 30, 20, 0.15);
}

.modular-icon {
  font-size: 2.2rem;
  min-width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-bright);
}

.modular-text {
  flex: 1;
}

.modular-title {
  font-size: 1.25rem;
  color: #fca5a5;
  margin-bottom: 6px;
}

.modular-desc {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.6;
}

/* ===================================================================
   TƏLİMÇİ HAQQINDA (AUTHOR SECTION)
   =================================================================== */
.author-section {
  padding: 90px 0;
  position: relative;
}

.author-card {
  max-width: 880px;
  margin: 0 auto;
  padding: 44px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  gap: 36px;
  border: 1px solid var(--border-bright);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(168, 30, 20, 0.05));
}

.author-avatar-wrap {
  position: relative;
  min-width: 160px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--brand-red), var(--brand-red-hover));
  box-shadow: 0 0 40px rgba(168, 30, 20, 0.45);
}

.author-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.author-info {
  flex: 1;
}

.author-name {
  font-size: 1.8rem;
  margin-bottom: 6px;
}

.author-role {
  color: #fca5a5;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.author-bio {
  color: var(--text-main);
  font-size: 0.975rem;
  line-height: 1.65;
  margin-bottom: 18px;
}

.author-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.author-tag {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.author-link {
  color: #fca5a5;
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.author-link:hover {
  text-decoration: underline;
  color: #ffffff;
}

/* ===================================================================
   PRICING SECTION
   =================================================================== */
.pricing-section {
  padding: 90px 0;
  position: relative;
}

/* URGENCY & SCARCITY BANNER */
.urgency-banner {
  max-width: 900px;
  margin: 0 auto 36px auto;
  padding: 20px 26px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(168, 30, 20, 0.4);
  background: linear-gradient(135deg, rgba(168, 30, 20, 0.15), rgba(10, 10, 10, 0.8));
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: 0 0 35px rgba(168, 30, 20, 0.18);
}

.urgency-icon {
  font-size: 2rem;
  min-width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(168, 30, 20, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fca5a5;
}

.urgency-title {
  font-size: 1.15rem;
  color: #fca5a5;
  margin-bottom: 4px;
}

.urgency-desc {
  font-size: 0.925rem;
  color: var(--text-main);
  line-height: 1.5;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  padding: 40px;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.pricing-card.featured {
  border-color: rgba(168, 30, 20, 0.6);
  background: linear-gradient(180deg, rgba(168, 30, 20, 0.14) 0%, rgba(10, 10, 10, 0.95) 100%);
  box-shadow: 0 0 60px rgba(168, 30, 20, 0.25);
}

.featured-ribbon {
  position: absolute;
  top: -14px;
  right: 24px;
  background: linear-gradient(135deg, var(--brand-red), var(--brand-red-hover));
  color: #ffffff;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 15px rgba(168, 30, 20, 0.5);
}

.tier-name {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.tier-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.tier-price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.price-old {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: #94a3b8;
  text-decoration: line-through;
  text-decoration-color: var(--brand-red-hover);
  text-decoration-thickness: 2px;
  margin-right: 8px;
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: #ffffff;
}

.price-period {
  color: var(--text-dim);
  font-size: 0.9375rem;
}

.tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
}

.tier-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text-main);
}

.tier-features li svg {
  min-width: 18px;
  color: var(--brand-red-hover);
}

/* PAYMENT METHODS STRIP */
.payment-methods-strip {
  max-width: 900px;
  margin: 36px auto 0 auto;
  padding: 20px 28px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
}

.payment-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.payment-badges {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pay-badge {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-bright);
  color: #e2e8f0;
}

/* ===================================================================
   FAQ ACCORDION
   =================================================================== */
.faq-section {
  padding: 90px 0;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.faq-item.active {
  border-color: rgba(168, 30, 20, 0.45);
  background: rgba(168, 30, 20, 0.05);
  box-shadow: 0 0 25px rgba(168, 30, 20, 0.1);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
}

.faq-arrow {
  font-size: 0.75rem;
  color: var(--text-dim);
  transition: transform var(--transition-smooth);
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  color: var(--brand-red-hover);
}

.faq-answer {
  padding: 0 24px 22px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ===================================================================
   FINAL CTA
   =================================================================== */
.final-cta {
  padding: 90px 0;
}

.cta-box {
  padding: 60px 32px;
  text-align: center;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(168, 30, 20, 0.4);
  background: linear-gradient(180deg, rgba(168, 30, 20, 0.15) 0%, rgba(10, 10, 10, 0.9) 100%);
  box-shadow: 0 0 60px rgba(168, 30, 20, 0.2);
}

/* ===================================================================
   REGISTRATION MODAL
   =================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  width: 100%;
  max-width: 500px;
  padding: 38px;
  border-radius: var(--radius-xl);
  position: relative;
  background: rgba(10, 10, 10, 0.96);
  border: 1px solid rgba(168, 30, 20, 0.45);
  box-shadow: 0 0 60px rgba(168, 30, 20, 0.35);
  animation: modalEnter 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.92) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: #ffffff;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-input, .form-select {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--brand-red-hover);
  box-shadow: 0 0 15px rgba(168, 30, 20, 0.4);
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  padding: 60px 0 30px 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-dim);
  background: #030303;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 30px;
}

.footer-copy {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 20px;
}

/* ===================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   =================================================================== */
@media (max-width: 992px) {
  .curriculum-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta .btn {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .comparison-table {
    font-size: 0.875rem;
  }
  .comparison-table th, .comparison-table td {
    padding: 14px 16px;
  }
  .pricing-card {
    padding: 28px 20px;
  }
  .author-card {
    flex-direction: column;
    text-align: center;
    padding: 30px 20px;
  }
  .author-avatar-wrap {
    margin: 0 auto;
  }
  .author-tags {
    justify-content: center;
  }
  .urgency-banner {
    flex-direction: column;
    text-align: center;
  }
  .payment-methods-strip {
    flex-direction: column;
    text-align: center;
  }
  .payment-badges {
    justify-content: center;
  }
  .curriculum-body {
    grid-template-columns: 1fr;
  }
}