/* ============================================
   생각을코딩하다 - 메인 스타일시트
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
  /* Colors */
  --primary: #FF6B35;
  --primary-dark: #E55A2B;
  --primary-light: #FF8F66;
  --secondary: #2D3748;
  --secondary-light: #4A5568;
  --accent: #4299E1;
  --accent-dark: #3182CE;
  --success: #48BB78;
  --warning: #ECC94B;
  --danger: #F56565;
  
  /* Backgrounds */
  --bg-white: #FFFFFF;
  --bg-light: #F7FAFC;
  --bg-gray: #EDF2F7;
  --bg-dark: #1A202C;
  
  /* Text Colors */
  --text-primary: #1A202C;
  --text-secondary: #4A5568;
  --text-muted: #718096;
  --text-light: #A0AEC0;
  --text-white: #FFFFFF;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Typography */
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Container */
  --container-max: 1200px;
  --container-padding: 20px;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--primary);
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.nav-link .arrow {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.nav-item:hover .arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background: var(--bg-light);
  color: var(--primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow: hidden;
  padding-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--text-white);
}

.hero-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.hero-title .highlight {
  color: #FFD93D;
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  opacity: 0.9;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Floating Elements */
.hero-float {
  position: absolute;
  z-index: 1;
  animation: float 6s ease-in-out infinite;
}

.hero-float:nth-child(1) {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.hero-float:nth-child(2) {
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.hero-float:nth-child(3) {
  bottom: 20%;
  left: 15%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.float-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  backdrop-filter: blur(10px);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
  color: var(--text-white);
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  border: 2px solid currentColor;
  color: var(--text-white);
}

.btn-outline:hover {
  background: var(--bg-white);
  color: var(--primary);
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.1rem;
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
}

/* ============================================
   Stats Section
   ============================================ */
.stats {
  padding: var(--space-3xl) 0;
  background: var(--bg-white);
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-xl);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-number span {
  font-size: 1.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============================================
   Section Styles
   ============================================ */
.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(255, 107, 53, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-gray);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.card-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  background: var(--primary);
  color: var(--text-white);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.card-content {
  padding: var(--space-lg);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.card-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

/* ============================================
   Product Cards
   ============================================ */
.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--bg-gray);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.product-image {
  aspect-ratio: 1;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.product-image img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
  transition: transform var(--transition-base);
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-content {
  padding: var(--space-lg);
  text-align: center;
}

.product-category {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-light);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.product-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.product-price {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
}

/* ============================================
   Features Section
   ============================================ */
.features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--bg-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: 2rem;
  color: var(--text-white);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Partners Section
   ============================================ */
.partners {
  padding: var(--space-2xl) 0;
  background: var(--bg-white);
  border-top: 1px solid var(--bg-gray);
  border-bottom: 1px solid var(--bg-gray);
}

.partners-title {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-xl);
}

.partners-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2xl);
}

.partner-logo {
  height: 40px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: all var(--transition-base);
}

.partner-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--secondary) 0%, #1a365d 100%);
  color: var(--text-white);
  text-align: center;
}

.cta-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.cta-description {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-md);
}

.footer-description {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--primary);
  color: var(--text-white);
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  color: var(--text-light);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-copyright {
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  gap: var(--space-lg);
}

.footer-legal a {
  font-size: 0.9rem;
  color: var(--text-light);
}

.footer-legal a:hover {
  color: var(--primary);
}

/* ============================================
   Quick Menu (Floating)
   ============================================ */
.quick-menu {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.quick-menu-item {
  width: 50px;
  height: 50px;
  background: var(--bg-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
  position: relative;
}

.quick-menu-item:hover {
  background: var(--primary);
  color: var(--text-white);
}

.quick-menu-item .tooltip {
  position: absolute;
  right: 60px;
  padding: var(--space-sm) var(--space-md);
  background: var(--secondary);
  color: var(--text-white);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.quick-menu-item:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
  padding: 120px 0 var(--space-3xl);
  background: linear-gradient(135deg, var(--secondary) 0%, #1a365d 100%);
  color: var(--text-white);
  text-align: center;
}

.page-header .section-badge {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-white);
}

.page-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.page-subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  font-size: 0.9rem;
  opacity: 0.8;
}

.breadcrumb-separator {
  opacity: 0.5;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--bg-gray);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background: var(--bg-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* ============================================
   Tables
   ============================================ */
.table-wrapper {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--bg-gray);
}

.table th {
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-primary);
}

.table tr:hover {
  background: var(--bg-light);
}

/* ============================================
   Tabs
   ============================================ */
.tabs {
  display: flex;
  gap: var(--space-sm);
  border-bottom: 2px solid var(--bg-gray);
  margin-bottom: var(--space-xl);
}

.tab-btn {
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition-fast);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tab-btn:hover,
.tab-btn.active {
  color: var(--primary);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
}

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

/* ============================================
   Badges & Tags
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.badge-primary {
  background: rgba(255, 107, 53, 0.1);
  color: var(--primary);
}

.badge-success {
  background: rgba(72, 187, 120, 0.1);
  color: var(--success);
}

.badge-warning {
  background: rgba(236, 201, 75, 0.1);
  color: var(--warning);
}

.badge-info {
  background: rgba(66, 153, 225, 0.1);
  color: var(--accent);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease-out;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease-out;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-white { color: var(--text-white); }

.bg-white { background: var(--bg-white); }
.bg-light { background: var(--bg-light); }
.bg-dark { background: var(--bg-dark); }

.mt-xl { margin-top: var(--space-xl); }
.mb-xl { margin-bottom: var(--space-xl); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }
  
  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  
  .nav-link {
    padding: var(--space-md);
    border-bottom: 1px solid var(--bg-gray);
  }
  
  .dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    padding: var(--space-sm) var(--space-lg);
    display: none;
  }
  
  .nav-item.open .dropdown {
    display: block;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-brand {
    max-width: 100%;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .quick-menu {
    right: 10px;
    bottom: 20px;
    top: auto;
    transform: none;
    flex-direction: row;
    gap: var(--space-xs);
  }
  
  .quick-menu-item {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .quick-menu-item .tooltip {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 16px;
  }
  
  .hero {
    min-height: auto;
    padding: 120px 0 var(--space-3xl);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .quick-menu {
    display: none;
  }
  
  .hero {
    min-height: auto;
    padding: var(--space-xl) 0;
  }
}