/* ==========================================================================
   ORACUS ENTERPRISES - DIGITAL MARKETING WITH AI INTEGRATION
   Premium Modern Mobile-First Stylesheet
   Linux / Hostinger Compatible - All relative forward slashes (/)
   ========================================================================== */

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

:root {
  /* Color Palette */
  --bg-darker: #050B18;
  --bg-dark: #0A1329;
  --bg-card: rgba(14, 26, 54, 0.75);
  --bg-card-hover: rgba(22, 40, 82, 0.85);
  --bg-glass: rgba(10, 19, 41, 0.8);
  
  --primary: #2563EB;
  --primary-light: #38BDF8;
  --primary-electric: #00D2FF;
  --primary-dark: #1D4ED8;
  
  --accent-gold: #F59E0B;
  --accent-gold-light: #FBBF24;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);
  
  --accent-red: #EF4444;
  --accent-green: #10B981;
  --whatsapp-green: #25D366;
  
  --text-white: #FFFFFF;
  --text-light: #F1F5F9;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --border-subtle: rgba(56, 189, 248, 0.15);
  --border-highlight: rgba(56, 189, 248, 0.35);
  --border-gold: rgba(245, 158, 11, 0.3);
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 35px -5px rgba(2, 6, 23, 0.6);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);
  --shadow-gold: 0 0 25px rgba(245, 158, 11, 0.35);
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  /* Mobile Bottom CTA Height */
  --mobile-cta-height: 68px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-darker);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Add bottom padding on mobile so content isn't obscured by sticky bar */
@media (max-width: 767px) {
  body {
    padding-bottom: var(--mobile-cta-height);
  }
}

/* Background Atmospheric Gradient Mesh */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 100vh;
  background: 
    radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 85% 30%, rgba(14, 165, 233, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 75% 90%, rgba(30, 64, 175, 0.15) 0%, transparent 55%);
  pointer-events: none;
  z-index: -1;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  background: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-white);
  font-weight: 700;
  line-height: 1.2;
}

.text-gradient {
  background: linear-gradient(135deg, #FFFFFF 20%, #38BDF8 65%, #00D2FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #FEF08A 0%, #FBBF24 50%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  width: fit-content;
}

.badge-blue {
  background: rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--primary-light);
}

.badge-gold {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--accent-gold-light);
}

.badge-red {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #FCA5A5;
}

.badge-pulse::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 10px #10B981;
  animation: pulseDot 1.8s infinite;
}

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

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
  user-select: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0284C7 100%);
  color: var(--text-white);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.6);
  border-color: rgba(255, 255, 255, 0.35);
  color: #FFFFFF;
}

.btn-gold {
  background: linear-gradient(135deg, #D97706 0%, #F59E0B 50%, #FBBF24 100%);
  color: #050B18;
  font-weight: 800;
  box-shadow: var(--shadow-gold);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.55);
  color: #000000;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid rgba(56, 189, 248, 0.4);
  color: var(--text-white);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #059669 0%, #10B981 50%, #25D366 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.55);
  color: #FFFFFF;
}

.btn-call {
  background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
}

.btn-call:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(59, 130, 246, 0.55);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 11, 24, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(5, 11, 24, 0.96);
  border-bottom: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo img {
  height: 48px;
  width: auto;
  display: block;
}

/* Desktop Nav */
.main-nav {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.03em;
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent-gold));
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-light);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: none;
  align-items: center;
  gap: 1rem;
}

.header-call-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--text-white);
  transition: all var(--transition-fast);
}

.header-call-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

/* Mobile Hamburger Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-white);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-fast);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 76px;
  left: 0;
  width: 100%;
  height: calc(100vh - 76px);
  background: rgba(5, 11, 24, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.25rem 2.5rem;
  overflow-y: auto;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease, visibility 0.35s;
  z-index: 999;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-light);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: rgba(37, 99, 235, 0.2);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--primary-light);
}

.mobile-nav-link svg {
  width: 18px;
  height: 18px;
  color: var(--accent-gold);
}

.mobile-drawer-cta {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

@media (min-width: 992px) {
  .menu-toggle {
    display: none;
  }
  .main-nav {
    display: block;
  }
  .header-actions {
    display: flex;
  }
  .mobile-drawer {
    display: none;
  }
}

/* ==========================================================================
   MOBILE STICKY BOTTOM CALL / WHATSAPP BAR
   Visible only on screens < 768px
   ========================================================================== */
.mobile-bottom-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: var(--mobile-cta-height);
  background: rgba(5, 11, 24, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.5rem 0.75rem;
  gap: 0.65rem;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

.mobile-bottom-bar .bottom-btn {
  flex: 1;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  text-decoration: none;
}

.bottom-btn-call {
  background: linear-gradient(135deg, #1E40AF 0%, #2563EB 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.bottom-btn-whatsapp {
  background: linear-gradient(135deg, #059669 0%, #25D366 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

@media (min-width: 768px) {
  .mobile-bottom-bar {
    display: none !important;
  }
}

/* ==========================================================================
   HERO SECTIONS
   ========================================================================== */
.hero {
  position: relative;
  padding: 3rem 0 4.5rem;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    padding: 5rem 0 6.5rem;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

@media (min-width: 1200px) {
  .hero-title {
    font-size: 3.85rem;
  }
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-gold-light);
  text-transform: uppercase;
}

@media (min-width: 768px) {
  .hero-tagline {
    font-size: 1.35rem;
  }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 580px;
}

@media (min-width: 768px) {
  .hero-desc {
    font-size: 1.15rem;
  }
}

.hero-highlights {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: rgba(37, 99, 235, 0.1);
  border: 1px dashed rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--primary-light);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

@media (max-width: 480px) {
  .hero-cta-group .btn {
    width: 100%;
  }
}

.hero-image-wrapper {
  position: relative;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-highlight);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(37, 99, 235, 0.25);
  background: var(--bg-card);
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.hero-image-frame:hover img {
  transform: scale(1.03);
}

/* Floating Badges over Hero Image */
.floating-badge {
  position: absolute;
  background: rgba(10, 19, 41, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-highlight);
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
}

.floating-badge-bottom {
  bottom: -15px;
  right: -10px;
}

@media (min-width: 768px) {
  .floating-badge-bottom {
    bottom: -20px;
    right: 20px;
  }
}

.floating-badge-top {
  top: -15px;
  left: -10px;
}

@media (min-width: 768px) {
  .floating-badge-top {
    top: 20px;
    left: -25px;
  }
}

/* ==========================================================================
   OFFER BANNER & PROMO CARDS (45% OFF & FREE LECTURE)
   ========================================================================== */
.offer-banner {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(37, 99, 235, 0.2) 50%, rgba(245, 158, 11, 0.15) 100%);
  border: 1.5px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0 3.5rem;
  box-shadow: var(--shadow-gold);
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .offer-banner {
    padding: 2.25rem;
  }
}

.offer-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.offer-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .offer-grid {
    flex-direction: row;
    align-items: center;
  }
}

.offer-discount-badge {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.discount-number {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1;
  color: #FFFFFF;
  text-shadow: 0 4px 15px rgba(239, 68, 68, 0.5);
  background: linear-gradient(135deg, #EF4444 0%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.discount-text {
  display: flex;
  flex-direction: column;
}

.discount-text .special {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  color: var(--accent-gold-light);
}

.discount-text .title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
}

/* Free First Lecture Feature Section */
.free-lecture-section {
  background: linear-gradient(135deg, #0A1329 0%, #0F1E42 50%, #162852 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 2.5rem 1.5rem;
  margin: 3.5rem 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

@media (min-width: 768px) {
  .free-lecture-section {
    padding: 3.5rem 3rem;
  }
}

.free-lecture-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 992px) {
  .free-lecture-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.free-lecture-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .free-lecture-title {
    font-size: 2.5rem;
  }
}

/* ==========================================================================
   SECTIONS & GRIDS
   ========================================================================== */
.section {
  padding: 4rem 0;
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding: 6rem 0;
  }
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.65rem;
  }
}

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

/* Cards Grid */
.cards-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .cards-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .cards-grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

.cards-grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .cards-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cards-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cards-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 840px) {
  .cards-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.25rem;
  }
}

/* Glassmorphism Card Style */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md), 0 0 25px rgba(37, 99, 235, 0.2);
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--primary-light);
  margin-bottom: 1.25rem;
  flex-shrink: 0;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Image Cards (Who Can Join) */
.image-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.image-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md);
}

.image-card-thumb {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.image-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.image-card:hover .image-card-thumb img {
  transform: scale(1.05);
}

.image-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Stat Cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.25rem;
  text-align: center;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--primary-light);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-white);
}

/* ==========================================================================
   MODULES ACCORDION (PAGE 4)
   ========================================================================== */
.module-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.module-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.module-item.active {
  border-color: var(--primary-light);
  box-shadow: 0 4px 25px rgba(37, 99, 235, 0.25);
  background: rgba(14, 26, 54, 0.95);
}

.module-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  user-select: none;
  background: rgba(255, 255, 255, 0.02);
}

@media (min-width: 768px) {
  .module-header {
    padding: 1.5rem 2rem;
  }
}

.module-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

@media (min-width: 768px) {
  .module-header-left {
    gap: 1.5rem;
  }
}

.module-number-badge {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: var(--primary-light);
  white-space: nowrap;
}

.module-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}

@media (min-width: 768px) {
  .module-title {
    font-size: 1.35rem;
  }
}

.module-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--primary-light);
  transition: transform var(--transition-normal), background var(--transition-fast);
  flex-shrink: 0;
}

.module-item.active .module-toggle-btn {
  transform: rotate(180deg);
  background: var(--primary);
  color: #FFFFFF;
}

.module-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
  padding: 0 1.5rem;
}

.module-item.active .module-body {
  max-height: 800px;
  padding: 1.25rem 1.5rem 1.75rem;
  border-top: 1px solid rgba(56, 189, 248, 0.15);
}

@media (min-width: 768px) {
  .module-item.active .module-body {
    padding: 1.5rem 2rem 2rem;
  }
}

.topics-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .topics-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem 1.5rem;
  }
}

.topic-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text-light);
}

.topic-bullet {
  color: var(--accent-gold);
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   CONTACT FORM & INFO CARDS (PAGE 5)
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .contact-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .contact-form-card {
    padding: 2.75rem;
  }
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-light);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  background: rgba(5, 11, 24, 0.75);
  border: 1px solid var(--border-subtle);
  color: #FFFFFF;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.form-control::placeholder {
  color: var(--text-dim);
}

/* Contact Info Card */
.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.direct-channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: all var(--transition-fast);
}

.direct-channel-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.channel-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.channel-icon.call {
  background: rgba(37, 99, 235, 0.2);
  color: var(--primary-light);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.channel-icon.whatsapp {
  background: rgba(37, 211, 102, 0.2);
  color: #25D366;
  border: 1px solid rgba(37, 211, 102, 0.35);
}

.channel-icon.gift {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.35);
}

/* ==========================================================================
   POPUP MODAL (FIRST LECTURE FREE)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: linear-gradient(135deg, #0A1329 0%, #0F1E42 100%);
  border: 1.5px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  padding: 2.25rem 1.75rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 35px rgba(37, 99, 235, 0.3);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.modal-overlay.open .modal-box {
  transform: scale(1) translateY(0);
}

@media (min-width: 768px) {
  .modal-box {
    padding: 3rem 2.5rem;
  }
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(239, 68, 68, 0.3);
  border-color: var(--accent-red);
  transform: rotate(90deg);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #030712;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 3rem;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-brand img {
  height: 52px;
  width: auto;
}

.footer-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-heading {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: #FFFFFF;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link:hover {
  color: var(--primary-light);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-dim);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}