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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --accent-1: #6c5ce7;
  --accent-2: #00cec9;
  --accent-3: #fd79a8;
  --accent-4: #fdcb6e;
  --gradient-1: linear-gradient(135deg, #6c5ce7, #00cec9);
  --gradient-2: linear-gradient(135deg, #fd79a8, #fdcb6e);
  --gradient-3: linear-gradient(135deg, #6c5ce7, #fd79a8);
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
  --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f5f5fa;
  --bg-secondary: #ffffff;
  --bg-card: rgba(0, 0, 0, 0.02);
  --bg-glass: rgba(255, 255, 255, 0.7);
  --border-glass: rgba(0, 0, 0, 0.08);
  --text-primary: #1a1a2e;
  --text-secondary: #555570;
  --text-muted: #8888a0;
  --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.1);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

::selection {
  background: var(--accent-1);
  color: white;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-1);
  border-radius: 3px;
}

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

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

.container {
  max-width: 1280px;
  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);
  backdrop-filter: blur(0px);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 10px 0;
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(245, 245, 250, 0.85);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.logo span {
  font-weight: 400;
  opacity: 0.7;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-1);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.theme-toggle:hover {
  background: var(--accent-1);
  color: white;
  border-color: var(--accent-1);
  transform: rotate(30deg);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.cart-icon {
  position: relative;
  cursor: pointer;
  padding: 8px;
  font-size: 1.2rem;
}

.cart-badge {
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: var(--accent-3);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0);
  transition: var(--transition);
}

.cart-badge.show {
  transform: scale(1);
}

/* ═══════════════════════ HERO ═══════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 20s ease-in-out infinite;
}

.hero-bg .orb-1 {
  width: 600px;
  height: 600px;
  background: var(--accent-1);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.hero-bg .orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-2);
  bottom: -100px;
  left: -100px;
  animation-delay: -7s;
}

.hero-bg .orb-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-3);
  top: 50%;
  left: 50%;
  animation-delay: -14s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(15px, 30px) scale(1.02); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #00ff88;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .line {
  display: block;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ═══════════════════════ BUTTONS ═══════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  border-color: var(--accent-1);
}

.btn-small {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

/* ═══════════════════════ SECTIONS ═══════════════════════ */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-1);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ═══════════════════════ FEATURES ═══════════════════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-1);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 92, 231, 0.2);
  box-shadow: var(--shadow-glow);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════ PORTFOLIO ═══════════════════════ */
.portfolio-filters {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-glass);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-1);
  color: white;
  border-color: var(--accent-1);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(108, 92, 231, 0.3);
}

.portfolio-thumb {
  height: 220px;
  background: var(--gradient-1);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.portfolio-thumb .overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-card:hover .overlay {
  opacity: 1;
}

.portfolio-info {
  padding: 24px;
}

.portfolio-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.portfolio-tag {
  padding: 4px 10px;
  background: var(--bg-glass);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-glass);
}

.portfolio-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.portfolio-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ═══════════════════════ BLOG ═══════════════════════ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.blog-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  transition: var(--transition);
  cursor: pointer;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.blog-thumb {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  position: relative;
}

.blog-body {
  padding: 24px;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-category {
  padding: 3px 10px;
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent-1);
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.75rem;
}

.blog-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}

.blog-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-1);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.blog-read-more:hover {
  gap: 10px;
}

/* ═══════════════════════ SHOP ═══════════════════════ */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.product-img {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--accent-3);
  color: white;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
}

.product-body {
  padding: 20px;
}

.product-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.product-body .product-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.product-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price {
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-price .old-price {
  font-size: 0.85rem;
  -webkit-text-fill-color: var(--text-muted);
  text-decoration: line-through;
  margin-right: 6px;
  font-weight: 400;
}

/* ═══════════════════════ CART SIDEBAR ═══════════════════════ */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  max-width: 90vw;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-glass);
  z-index: 2000;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.cart-sidebar.open {
  right: 0;
}

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-glass);
}

.cart-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
}

.cart-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.cart-close:hover {
  background: var(--accent-3);
  color: white;
  border-color: var(--accent-3);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
}

.cart-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
}

.cart-empty .empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.cart-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-glass);
}

.cart-item-img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.cart-item-info {
  flex: 1;
}

.cart-item-info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.cart-item-info .price {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-2);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.qty-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: var(--transition);
}

.qty-btn:hover {
  background: var(--accent-1);
  color: white;
  border-color: var(--accent-1);
}

.cart-item-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
  align-self: flex-start;
}

.cart-item-remove:hover {
  color: var(--accent-3);
}

.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-glass);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  font-size: 1.1rem;
  font-weight: 700;
}

.cart-total .total-price {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.3rem;
}

/* ═══════════════════════ ENGLISH SECTION ═══════════════════════ */
.english-hero {
  padding: 120px 0 60px;
  text-align: center;
  position: relative;
}

.level-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.level-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: pointer;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.level-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(108, 92, 231, 0.3);
}

.level-card.level-a1 { border-left: 3px solid #00b894; }
.level-card.level-a2 { border-left: 3px solid #00cec9; }
.level-card.level-b1 { border-left: 3px solid #6c5ce7; }
.level-card.level-b2 { border-left: 3px solid #fd79a8; }
.level-card.level-c1 { border-left: 3px solid #fdcb6e; }

.level-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.level-card.level-a1 .level-label { color: #00b894; }
.level-card.level-a2 .level-label { color: #00cec9; }
.level-card.level-b1 .level-label { color: #6c5ce7; }
.level-card.level-b2 .level-label { color: #fd79a8; }
.level-card.level-c1 .level-label { color: #fdcb6e; }

.level-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.level-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}

.level-progress {
  height: 4px;
  background: var(--bg-glass);
  border-radius: 2px;
  overflow: hidden;
}

.level-progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s ease;
}

.level-card.level-a1 .level-progress-fill { background: #00b894; }
.level-card.level-a2 .level-progress-fill { background: #00cec9; }
.level-card.level-b1 .level-progress-fill { background: #6c5ce7; }
.level-card.level-b2 .level-progress-fill { background: #fd79a8; }
.level-card.level-c1 .level-progress-fill { background: #fdcb6e; }

.level-card.level-p1 { border-left: 3px solid #00ff88; }
.level-card.level-p2 { border-left: 3px solid #00d2ff; }
.level-card.level-p3 { border-left: 3px solid #ff6b6b; }
.level-card.level-p4 { border-left: 3px solid #ffd93d; }
.level-card.level-p5 { border-left: 3px solid #c084fc; }
.level-card.level-p6 { border-left: 3px solid #f39c12; }
.level-card.level-p7 { border-left: 3px solid #1dd1a1; }
.level-card.level-p8 { border-left: 3px solid #e15f41; }
.level-card.level-p9 { border-left: 3px solid #ff9ff3; }
.level-card.level-p10 { border-left: 3px solid #e17055; }
.level-card.level-p11 { border-left: 3px solid #00a8ff; }
.level-card.level-p12 { border-left: 3px solid #fdcb6e; }
.level-card.level-p13 { border-left: 3px solid #a29bfe; }

.level-card.level-p1 .level-label { color: #00ff88; }
.level-card.level-p2 .level-label { color: #00d2ff; }
.level-card.level-p3 .level-label { color: #ff6b6b; }
.level-card.level-p4 .level-label { color: #ffd93d; }
.level-card.level-p5 .level-label { color: #c084fc; }
.level-card.level-p6 .level-label { color: #f39c12; }
.level-card.level-p7 .level-label { color: #1dd1a1; }
.level-card.level-p8 .level-label { color: #e15f41; }
.level-card.level-p9 .level-label { color: #ff9ff3; }
.level-card.level-p10 .level-label { color: #e17055; }
.level-card.level-p11 .level-label { color: #00a8ff; }
.level-card.level-p12 .level-label { color: #fdcb6e; }
.level-card.level-p13 .level-label { color: #a29bfe; }

.level-card.level-p1 .level-progress-fill { background: #00ff88; }
.level-card.level-p2 .level-progress-fill { background: #00d2ff; }
.level-card.level-p3 .level-progress-fill { background: #ff6b6b; }
.level-card.level-p4 .level-progress-fill { background: #ffd93d; }
.level-card.level-p5 .level-progress-fill { background: #c084fc; }
.level-card.level-p6 .level-progress-fill { background: #f39c12; }
.level-card.level-p7 .level-progress-fill { background: #1dd1a1; }
.level-card.level-p8 .level-progress-fill { background: #e15f41; }
.level-card.level-p9 .level-progress-fill { background: #ff9ff3; }
.level-card.level-p10 .level-progress-fill { background: #e17055; }
.level-card.level-p11 .level-progress-fill { background: #00a8ff; }
.level-card.level-p12 .level-progress-fill { background: #fdcb6e; }
.level-card.level-p13 .level-progress-fill { background: #a29bfe; }

.prog-section-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 80px 0 40px;
}

.prog-section-divider::before,
.prog-section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-glass);
}

.prog-section-divider span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 2px;
  white-space: nowrap;
}

/* Lesson View */
.lesson-view {
  display: none;
}

.lesson-view.active {
  display: block;
}

.lesson-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.back-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}

.back-btn:hover {
  background: var(--accent-1);
  color: white;
  border-color: var(--accent-1);
}

.vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.vocab-card {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.vocab-card:hover {
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

.vocab-word {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.vocab-phonetic {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 8px;
}

.vocab-translation {
  font-size: 0.9rem;
  color: var(--accent-2);
  font-weight: 500;
}

.vocab-example {
  font-size: 0.83rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-glass);
}

.vocab-card .flipped {
  display: none;
}

.vocab-card.flipped .front { display: none; }
.vocab-card.flipped .flipped { display: block; }

.audio-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: var(--transition);
}

.audio-btn:hover {
  background: var(--accent-2);
  color: white;
  border-color: var(--accent-2);
}

/* Quiz */
.quiz-container {
  max-width: 700px;
  margin: 0 auto;
}

.quiz-progress {
  display: flex;
  gap: 6px;
  margin-bottom: 32px;
}

.quiz-dot {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--bg-glass);
  transition: var(--transition);
}

.quiz-dot.done {
  background: var(--accent-2);
}

.quiz-dot.current {
  background: var(--accent-1);
}

.quiz-question {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.quiz-hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.quiz-option {
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
  font-family: inherit;
  color: var(--text-primary);
}

.quiz-option:hover {
  border-color: var(--accent-1);
  background: rgba(108, 92, 231, 0.05);
}

.quiz-option.correct {
  border-color: #00b894;
  background: rgba(0, 184, 148, 0.1);
  color: #00b894;
}

.quiz-option.wrong {
  border-color: var(--accent-3);
  background: rgba(253, 121, 168, 0.1);
  color: var(--accent-3);
}

.quiz-option.disabled {
  pointer-events: none;
  opacity: 0.5;
}

.quiz-result {
  text-align: center;
  padding: 40px;
}

.quiz-result .score {
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.quiz-result .message {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin: 16px 0 32px;
}

/* ═══════════════════════ FOOTER ═══════════════════════ */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-glass);
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--accent-1);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-link:hover {
  background: var(--accent-1);
  color: white;
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

/* ═══════════════════════ STATS ═══════════════════════ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  margin: 60px 0;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ═══════════════════════ TESTIMONIALS ═══════════════════════ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.testimonial-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.testimonial-stars {
  color: var(--accent-4);
  font-size: 0.9rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: white;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ═══════════════════════ PAGE HEADER ═══════════════════════ */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(108, 92, 231, 0.15), transparent 70%);
}

.page-header h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 12px;
  position: relative;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
  position: relative;
}

/* ═══════════════════════ TOAST ═══════════════════════ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.4s ease;
  backdrop-filter: blur(20px);
  min-width: 250px;
}

.toast.success { border-left: 3px solid #00b894; }
.toast.error { border-left: 3px solid var(--accent-3); }
.toast.info { border-left: 3px solid var(--accent-1); }

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

.toast-exit {
  animation: toastOut 0.3s ease forwards;
}

@keyframes toastOut {
  to { opacity: 0; transform: translateX(40px); }
}

/* ═══════════════════════ REVEAL ANIMATIONS ═══════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* ═══════════════════════ CTA SECTION ═══════════════════════ */
.cta-section {
  padding: 80px 0;
}

.cta-box {
  padding: 60px;
  background: var(--gradient-1);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.cta-box .btn {
  background: white;
  color: var(--accent-1);
  position: relative;
  z-index: 1;
}

.cta-box .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* ═══════════════════════ MOBILE ═══════════════════════ */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 999;
  }

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

  .nav-links a {
    font-size: 1.3rem;
    padding: 12px 24px;
  }

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

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

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

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

  .shop-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .quiz-options {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .level-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .shop-grid {
    grid-template-columns: 1fr;
  }
}