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

/* ===== CSS VARIABLES ===== */
:root {
  --primary: #1a6cff;
  --primary-dark: #0f52cc;
  --primary-light: #4d8dff;
  --primary-glow: rgba(26, 108, 255, 0.25);
  --accent: #00c8ff;
  --dark-bg: #121212;
  --dark-surface: #1a1a1a;
  --dark-card: #222222;
  --light-bg: #f8f8f6;
  --light-surface: #ffffff;
  --light-card: #f0efed;
  --text-white: #ffffff;
  --text-light: #b8b8b8;
  --text-dark: #1a1a1a;
  --text-muted: #6b6b6b;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: rgba(0, 0, 0, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 50px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  color: var(--text-dark);
  background: var(--dark-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 var(--primary-glow);
  }
  50% {
    box-shadow: 0 0 0 15px transparent;
  }
}

@keyframes slideRight {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(6px);
  }
  100% {
    transform: translateX(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-delay-1 {
  transition-delay: 0.1s;
}
.animate-delay-2 {
  transition-delay: 0.2s;
}
.animate-delay-3 {
  transition-delay: 0.3s;
}
.animate-delay-4 {
  transition-delay: 0.4s;
}

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-smooth);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(18, 18, 18, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.navbar-brand .brand-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: -0.5px;
}

.navbar-brand .brand-text span {
  color: var(--primary);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition-fast);
  position: relative;
}

.navbar-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition-fast);
}

.navbar-links a:hover {
  color: var(--text-white);
}

.navbar-links a:hover::after {
  width: 100%;
}

.navbar-cta {
  background: var(--primary);
  color: var(--text-white) !important;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.navbar-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.navbar-cta::after {
  display: none !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  width: 26px;
  height: 2px;
  background: var(--text-white);
  transition: var(--transition-fast);
  border-radius: 2px;
}

/* ===== DASHBOARD NAVBAR ===== */
.dash-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 12px 0;
  background: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-dark);
  transition: var(--transition-smooth);
}

.dash-navbar.scrolled {
  padding: 8px 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

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

.dash-nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dash-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition-fast);
  position: relative;
}

.dash-nav-link i {
  font-size: 0.85rem;
  opacity: 0.7;
  transition: var(--transition-fast);
}

.dash-nav-link:hover {
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.06);
}

.dash-nav-link:hover i {
  opacity: 1;
  color: var(--primary-light);
}

.dash-nav-link.active-link {
  color: var(--text-white);
  background: rgba(26, 108, 255, 0.12);
}

.dash-nav-link.active-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.dash-nav-link.active-link i {
  opacity: 1;
  color: var(--primary-light);
}

/* ---- User Dropdown ---- */
.dash-nav-right {
  display: flex;
  align-items: center;
}

.dash-user-menu {
  position: relative;
}

.dash-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-full);
  padding: 6px 14px 6px 6px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.dash-user-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

.dash-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.85rem;
}

.dash-chevron {
  font-size: 0.65rem;
  color: var(--text-light);
  transition: var(--transition-fast);
}

.dash-user-menu.open .dash-chevron {
  transform: rotate(180deg);
}

.dash-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.97);
  transition: var(--transition-fast);
  z-index: 100;
}

.dash-user-menu.open .dash-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dash-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition-fast);
}

.dash-dropdown-item i {
  font-size: 0.9rem;
  width: 18px;
  text-align: center;
  opacity: 0.7;
}

.dash-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-white);
}

.dash-dropdown-item:hover i {
  opacity: 1;
}

.dash-dropdown-divider {
  height: 1px;
  background: var(--border-dark);
  margin: 4px 8px;
}

.dash-logout:hover {
  color: #f56565 !important;
}

.dash-logout:hover i {
  color: #f56565;
}

/* ---- Dashboard Hamburger (mobile) ---- */
@media (max-width: 768px) {
  .dash-nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(18, 18, 18, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-smooth);
    z-index: 999;
  }

  .dash-nav-links.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .dash-nav-link {
    font-size: 1.1rem;
    padding: 14px 24px;
    width: 100%;
    justify-content: center;
  }

  .dash-navbar .hamburger {
    display: flex;
    z-index: 1001;
  }

  .dash-nav-right {
    margin-right: 52px;
  }
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--dark-bg);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(
      circle at 20% 50%,
      rgba(26, 108, 255, 0.08) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 30%,
      rgba(0, 200, 255, 0.05) 0%,
      transparent 40%
    );
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  animation: fadeInLeft 0.8s ease both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(26, 108, 255, 0.1);
  border: 1px solid rgba(26, 108, 255, 0.2);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-badge i {
  font-size: 0.7rem;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 900;
  color: var(--text-white);
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: var(--text-white);
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-primary i {
  transition: var(--transition-fast);
}

.btn-primary:hover i {
  animation: slideRight 0.6s ease infinite;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text-white);
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-smooth);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(26, 108, 255, 0.05);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: -1px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 2px;
}

.hero-visual {
  position: relative;
  animation: fadeInRight 0.8s ease both;
  animation-delay: 0.2s;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.hero-image-wrapper img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  transition: transform 6s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.05);
}

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(18, 18, 18, 0.7), transparent);
  pointer-events: none;
}

.hero-float-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-elevated);
  animation: float 4s ease-in-out infinite;
  z-index: 3;
}

.hero-float-card .card-icon {
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.hero-float-card .card-text h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
}

.hero-float-card .card-text p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.hero-nav-dots {
  display: flex;
  gap: 10px;
  margin-top: 30px;
}

.hero-nav-dots .dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition-smooth);
  background: transparent;
  font-size: 0.9rem;
}

.hero-nav-dots .dot:hover,
.hero-nav-dots .dot.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(26, 108, 255, 0.05);
}

/* ===== SERVICES SECTION ===== */
.services {
  background: var(--light-bg);
  padding: 100px 0;
  position: relative;
}

.services .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.services-left {
  position: sticky;
  top: 120px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-label .label-line {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.services-title {
  font-size: clamp(2.2rem, 3.5vw, 3rem);
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.services-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 440px;
}

.btn-primary-light {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: var(--text-white);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn-primary-light:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.services-tabs {
  display: flex;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.services-tabs .tab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid var(--border-light);
  background: var(--light-surface);
  cursor: pointer;
  transition: var(--transition-smooth);
  color: var(--text-muted);
  font-size: 1rem;
}

.services-tabs .tab:hover,
.services-tabs .tab.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(26, 108, 255, 0.05);
}

.services-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.service-card {
  background: var(--light-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
  border: 1px solid var(--border-light);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-elevated);
}

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

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-image img {
  transform: scale(1.06);
}

.service-card-image .card-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.service-card-image .card-badge i {
  color: var(--primary);
}

.service-card-content {
  padding: 24px;
}

.service-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.service-card-header .icon-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(26, 108, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
}

.service-card-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
}

.service-card-header span {
  font-size: 0.82rem;
  color: var(--primary);
  font-weight: 600;
}

.service-card-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition-fast);
}

.service-card-link:hover {
  gap: 12px;
}

.service-card-link i {
  font-size: 0.75rem;
}

/* ===== FEATURES SECTION ===== */
.features {
  background: var(--light-bg);
  padding: 80px 0 100px;
  border-top: 1px solid var(--border-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-item {
  text-align: left;
  padding: 24px;
  border-radius: var(--radius-lg);
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.feature-item:hover {
  background: var(--light-surface);
  border-color: var(--border-light);
  box-shadow: var(--shadow-card);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: rgba(26, 108, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 20px;
  transition: var(--transition-smooth);
}

.feature-item:hover .feature-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.feature-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== COURSES SECTION ===== */
.courses {
  background: var(--dark-bg);
  padding: 100px 0;
  position: relative;
}

.courses::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 50% 0%,
    rgba(26, 108, 255, 0.06) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.courses .container {
  position: relative;
  z-index: 2;
}

.courses-header {
  text-align: center;
  margin-bottom: 60px;
}

.courses-header .section-label {
  color: var(--primary-light);
  justify-content: center;
}

.courses-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 900;
  color: var(--text-white);
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.courses-header p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.course-card {
  background: var(--dark-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-dark);
  transition: var(--transition-smooth);
}

.course-card:hover {
  transform: translateY(-5px);
  border-color: rgba(26, 108, 255, 0.2);
  box-shadow: 0 12px 40px rgba(26, 108, 255, 0.1);
}

.course-card-image {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.course-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.course-card:hover .course-card-image img {
  transform: scale(1.06);
}

.course-card-image .course-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary);
  color: white;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.course-card-body {
  padding: 24px;
}

.course-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
  line-height: 1.3;
}

.course-card-body p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 20px;
}

.course-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-dark);
}

.course-card-meta .meta-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.course-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  color: var(--text-light);
}

.course-card-meta .meta-item i {
  color: var(--primary-light);
  font-size: 0.75rem;
}

.course-card-meta .price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-light);
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: var(--dark-bg);
  padding: 0 0 100px;
  position: relative;
}

.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-xl);
  padding: 60px 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--text-white);
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.cta-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 500px;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: white;
  color: var(--primary);
  padding: 16px 32px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 2;
  white-space: nowrap;
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark-surface);
  padding: 60px 0 0;
  border-top: 1px solid var(--border-dark);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .brand-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 12px;
}

.footer-brand .brand-text span {
  color: var(--primary);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 300px;
  margin-bottom: 20px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-socials a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.footer-socials a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(26, 108, 255, 0.05);
}

.footer-column h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 20px;
}

.footer-column ul li {
  margin-bottom: 12px;
}

.footer-column ul li a {
  font-size: 0.88rem;
  color: var(--text-light);
  transition: var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--primary-light);
  padding-left: 6px;
}

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--text-light);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-content {
    order: 1;
  }
  .hero-visual {
    order: 0;
  }
  .hero-description {
    margin: 0 auto 40px;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-nav-dots {
    justify-content: center;
  }
  .services .container {
    grid-template-columns: 1fr;
  }
  .services-left {
    position: static;
    text-align: center;
  }
  .services-description {
    margin: 0 auto 32px;
  }
  .services-tabs {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(18, 18, 18, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    z-index: 999;
  }
  .navbar-links.active {
    display: flex;
  }
  .navbar-links a {
    font-size: 1.2rem;
    color: var(--text-white);
  }
  .hamburger {
    display: flex;
    z-index: 1001;
  }
  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }
  .hero-title {
    font-size: 2.4rem;
    letter-spacing: -1px;
  }
  .hero-image-wrapper img {
    height: 350px;
  }
  .hero-float-card {
    bottom: -10px;
    left: 10px;
    padding: 12px 16px;
  }
  .hero-buttons {
    flex-direction: column;
  }
  .hero-stats {
    gap: 24px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .courses-grid {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    flex-direction: column;
    text-align: center;
    padding: 40px 30px;
  }
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-socials {
    justify-content: center;
  }
  .footer-brand p {
    margin: 0 auto 20px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  .services-title {
    font-size: 1.8rem;
  }
  .btn-primary,
  .btn-outline {
    padding: 14px 24px;
    font-size: 0.92rem;
  }
}

/* ===== SEND FACTURA PAGE ===== */
.page-header {
  background: linear-gradient(135deg, var(--dark-bg) 0%, #1a2a4a 100%);
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(
      circle at 30% 50%,
      rgba(26, 108, 255, 0.12) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 30%,
      rgba(0, 200, 255, 0.08) 0%,
      transparent 40%
    );
  pointer-events: none;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--text-white);
  letter-spacing: -1.5px;
  position: relative;
  z-index: 1;
}

.page-header h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-top: 12px;
  position: relative;
  z-index: 1;
}

/* Form Section */
.form-section {
  padding: 60px 0 80px;
}

.form-card {
  background: var(--light-surface);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-elevated);
  border: 1px solid var(--border-light);
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 0.6s ease both;
}

.form-card h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.5px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.form-card h2 i {
  color: var(--primary);
  font-size: 1.3rem;
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-group label i {
  color: var(--primary);
  font-size: 0.82rem;
}

.form-group input {
  padding: 14px 18px;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--light-bg);
  transition: var(--transition-fast);
  outline: none;
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: var(--light-surface);
}

.form-group .input-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Drop Zones */
.drop-zones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  grid-column: 1 / -1;
  margin-top: 8px;
}

.drop-zone {
  border: 2px dashed rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  background: var(--light-bg);
  position: relative;
  overflow: hidden;
}

.drop-zone::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    rgba(26, 108, 255, 0.03) 100%
  );
  opacity: 0;
  transition: var(--transition-smooth);
  pointer-events: none;
}

.drop-zone:hover {
  border-color: var(--primary-light);
  background: var(--light-surface);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(26, 108, 255, 0.08);
}

.drop-zone:hover::before {
  opacity: 1;
}

.drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(26, 108, 255, 0.04);
  transform: scale(1.02);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.drop-zone.has-file {
  border-color: #22c55e;
  border-style: solid;
  background: rgba(34, 197, 94, 0.04);
}

.drop-zone-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  position: relative;
  opacity: 0.3;
  transition: var(--transition-smooth);
  filter: grayscale(100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone-icon svg {
  width: 100%;
  height: 100%;
}

.drop-zone.has-file .drop-zone-icon {
  opacity: 1;
  filter: grayscale(0%);
}

.drop-zone:hover .drop-zone-icon {
  opacity: 0.6;
  transform: scale(1.05);
}

.drop-zone.has-file:hover .drop-zone-icon {
  opacity: 1;
}

.drop-zone-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.drop-zone-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.drop-zone-filename {
  display: none;
  margin-top: 12px;
  padding: 8px 16px;
  background: rgba(34, 197, 94, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: #16a34a;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.drop-zone.has-file .drop-zone-filename {
  display: inline-flex;
}

.drop-zone.has-file .drop-zone-hint {
  display: none;
}

.remove-file-btn {
  display: none;
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.1);
  border: none;
  cursor: pointer;
  color: #ef4444;
  font-size: 0.75rem;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.drop-zone.has-file .remove-file-btn {
  display: flex;
}

.remove-file-btn:hover {
  background: #ef4444;
  color: white;
}

/* Submit Button */
.form-actions {
  grid-column: 1 / -1;
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: var(--text-white);
  padding: 16px 40px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-submit::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  transition: 0.5s;
}

.btn-submit:hover::before {
  left: 100%;
}

.btn-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-submit:disabled::before {
  display: none;
}

.btn-submit i {
  transition: var(--transition-fast);
}

.btn-submit:hover i {
  animation: slideRight 0.6s ease infinite;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 28px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  color: white;
  z-index: 9999;
  transform: translateY(120%);
  opacity: 0;
  transition: var(--transition-spring);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-elevated);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  background: linear-gradient(135deg, #16a34a, #22c55e);
}

.toast.error {
  background: linear-gradient(135deg, #dc2626, #ef4444);
}

.toast.warning {
  background: linear-gradient(135deg, #d97706, #f59e0b);
}

/* Loading Spinner */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Send Factura Responsive */
@media (max-width: 768px) {
  .form-card {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .drop-zones {
    grid-template-columns: 1fr;
  }

  .form-actions {
    justify-content: center;
  }

  .btn-submit {
    width: 100%;
    justify-content: center;
  }
}

/* ===== COURSE DESCRIPTION PAGE ===== */
.course-hero {
  background: var(--dark-bg);
  color: var(--text-white);
  padding: 130px 0 60px;
}

.course-hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 50px;
  align-items: center;
}

.breadcrumbs {
  font-size: 0.9rem;
  color: var(--primary-light);
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs a {
  transition: var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--text-white);
}

.breadcrumbs i {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.course-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.course-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 800px;
  margin-bottom: 24px;
}

.course-meta-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.badge-best-seller {
  background: #fcd34d;
  color: #78350f;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.created-by a {
  color: var(--primary-light);
  text-decoration: underline;
}

.course-meta-bottom {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.course-meta-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.course-body {
  background: var(--light-bg);
  padding: 50px 0;
  min-height: 500px;
}

.course-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 50px;
  align-items: start;
}

/* MAIN CONTENT */
.course-main-content {
  color: var(--text-dark);
}

.course-premium-banner {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 40px;
}

.banner-icon {
  width: 60px;
  height: 60px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: white;
  flex-shrink: 0;
}

.banner-text h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.banner-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.banner-stats {
  margin-left: auto;
  text-align: right;
  border-left: 1px solid var(--border-light);
  padding-left: 20px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  margin-bottom: 8px;
}

.stat-item:last-child {
  margin-bottom: 0;
}

.stat-rating {
  font-weight: 800;
  color: #b4690e;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 1.1rem;
}

.stat-rating i {
  font-size: 0.8rem;
}

.stat-item a {
  font-size: 0.8rem;
  color: var(--primary);
  text-decoration: underline;
}

.stat-item .stat-number {
  font-weight: 800;
  font-size: 1.1rem;
}

.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 20px;
  font-weight: 800;
  color: var(--text-dark);
}

.mt-4 {
  margin-top: 40px;
}

.course-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background: var(--light-surface);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  margin-bottom: 40px;
  border: 1px solid var(--border-light);
}

.summary-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: var(--text-dark);
}

.summary-item i {
  color: var(--primary);
}

.course-accordion {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--light-surface);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--border-light);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  padding: 16px 20px;
  background: var(--light-card);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-fast);
}

.accordion-header:hover {
  background: #e6e5e3;
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.accordion-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease-in-out;
  background: var(--light-surface);
}

.accordion-item.open .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-content-inner {
  overflow: hidden;
  padding: 0 20px 0 44px;
  opacity: 0;
  transition: padding 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.accordion-item.open .accordion-content-inner {
  padding: 16px 20px 16px 44px;
  opacity: 1;
}

.accordion-content ul li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.accordion-content ul li i {
  color: var(--primary);
}

.requirements-list {
  padding-left: 20px;
  list-style: disc;
}

.requirements-list li {
  margin-bottom: 10px;
  color: var(--text-dark);
}

/* SIDEBAR RIGHT */
.course-sidebar {
  position: sticky;
  top: 100px;
}

.pricing-card {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.course-hero-media {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
  border: 4px solid rgba(255, 255, 255, 0.05);
}

.course-hero-media img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.course-hero-media:hover img {
  transform: scale(1.05);
}

.play-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  border: 2px solid rgba(255, 255, 255, 0.8);
  cursor: pointer;
  transition: var(--transition-fast);
}

.play-overlay:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translate(-50%, -50%) scale(1.1);
  color: white;
}

.pricing-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.pricing-header h3 {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 600;
}

.badge-plus {
  background: #f5365c;
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
}

.badge-presencial {
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
}

.price-amount {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-dark);
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 16px;
}

.price-amount .currency {
  font-size: 1.2rem;
}

.price-amount .mxn {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 600;
}

.price-amount .plus-tax {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
}

.btn-comprar {
  width: 100%;
  background: var(--primary);
  color: white;
  padding: 16px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 16px;
}

.btn-comprar:hover {
  background: var(--primary-dark);
}

.btn-outline-dark {
  width: 100%;
  background: transparent;
  color: var(--text-dark);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1rem;
  border: 1.5px solid var(--text-dark);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 16px;
}

.btn-outline-dark:hover {
  background: rgba(0, 0, 0, 0.05);
}

.pricing-features ul li {
  font-size: 0.9rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
}

.pricing-features ul li i {
  color: var(--primary);
}

.pricing-divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 24px 0;
}

.regular-price {
  font-size: 1.4rem;
}

.pricing-regular-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.pricing-footer-list ul li {
  font-size: 0.85rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dark);
}

.pricing-footer-list ul li i {
  color: var(--text-muted);
  width: 16px;
}

@media (max-width: 900px) {
  .course-hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .course-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .course-premium-banner {
    flex-direction: column;
    text-align: center;
  }
  .banner-stats {
    border-left: none;
    border-top: 1px solid var(--border-light);
    padding-left: 0;
    padding-top: 20px;
    margin-left: 0;
    width: 100%;
    text-align: center;
  }
  .course-summary-grid {
    grid-template-columns: 1fr;
  }
  .course-meta-bottom {
    flex-direction: column;
    gap: 10px;
  }
}