/* ========================================
   GlazeWM 官方网站样式表 - 浅色主题
   ======================================== */

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

:root {
  /* 主色调 - 蓝色系 */
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary-color: #0ea5e9;
  --accent-color: #06b6d4;

  /* 浅色背景 */
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-light-gray: #f1f5f9;
  --bg-card: #ffffff;

  /* 文字颜色 - 深色系 */
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;

  /* 边框颜色 */
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;

  /* 功能色 */
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
  --gradient-hero: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%);

  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* 过渡动画 */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-light);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand img {
  width: 60px;
}

.nav-brand span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 0.625rem 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(59, 130, 246, 0.08);
}

.nav-link.active {
  color: var(--primary-color);
  background: rgba(59, 130, 246, 0.12);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  cursor: pointer;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(14, 165, 233, 0.1), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.75rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  color: white;
}

.btn-secondary {
  background: var(--bg-white);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-light-gray);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn svg {
  width: 20px;
  height: 20px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ========================================
   Features Section
   ======================================== */
.section {
  padding: 5rem 0;
  background: var(--bg-white);
}

.section-gray {
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   Layouts Showcase
   ======================================== */
.layouts-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.layout-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition-normal);
}

.layout-item:hover {
  border-color: var(--secondary-color);
  transform: scale(1.02);
}

.layout-preview {
  display: grid;
  gap: 4px;
  height: 120px;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background: var(--bg-light-gray);
  border-radius: 0.5rem;
}

.layout-preview.vertical {
  grid-template-columns: 1fr 1fr;
}

.layout-preview.horizontal {
  grid-template-rows: 1fr 1fr;
}

.layout-preview.stacked {
  grid-template-columns: 2fr 1fr;
}

.layout-preview.fullscreen {
  grid-template-columns: 1fr;
}

.layout-window {
  background: var(--primary-color);
  border-radius: 4px;
  opacity: 0.8;
}

.layout-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.layout-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ========================================
   Comparison Section
   ======================================== */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: 1rem;
  overflow: hidden;
  margin-top: 2rem;
  border: 1px solid var(--border-color);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: rgba(59, 130, 246, 0.08);
  color: var(--text-primary);
  font-weight: 600;
}

.comparison-table td {
  color: var(--text-secondary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .check {
  color: var(--success-color);
}

.comparison-table .cross {
  color: var(--text-muted);
}

/* ========================================
   Download Section
   ======================================== */
.download-section {
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
  text-align: center;
}

.download-box {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 3rem;
  max-width: 600px;
  margin: 2rem auto 0;
  box-shadow: var(--shadow-lg);
}

.download-version {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.download-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.download-subtitle {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.download-requirements {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
  text-align: left;
}

.requirement-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-light-gray);
  border-radius: 0.5rem;
}

.requirement-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 0.5rem;
  color: var(--primary-color);
}

.requirement-icon svg {
  width: 20px;
  height: 20px;
}

.requirement-text {
  font-size: 0.875rem;
}

.requirement-label {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.requirement-value {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================
   Shortcuts Section
   ======================================== */
.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.shortcut-category {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
}

.shortcut-category-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.shortcut-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.shortcut-keys {
  display: flex;
  gap: 0.25rem;
}

.shortcut-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-light-gray);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.shortcut-key.modifier {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--primary-color);
}

.shortcut-action {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ========================================
   Changelog Section
   ======================================== */
.changelog-timeline {
  max-width: 800px;
  margin: 2rem auto 0;
  position: relative;
  padding-left: 2rem;
}

.changelog-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.changelog-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.changelog-item:last-child {
  padding-bottom: 0;
}

.changelog-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  background: var(--primary-color);
  border-radius: 50%;
  transform: translateX(-5px);
  border: 3px solid var(--bg-white);
  box-shadow: var(--shadow-sm);
}

.changelog-version {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.changelog-version .version-tag {
  padding: 0.25rem 0.625rem;
  background: var(--gradient-primary);
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

.changelog-date {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.changelog-changes {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.25rem;
}

.changelog-type {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 0.5rem;
  margin-bottom: 0.75rem;
}

.changelog-type.new {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
}

.changelog-type.fix {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning-color);
}

.changelog-type.improve {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
}

.changelog-type.update {
  background: rgba(14, 165, 233, 0.1);
  color: var(--secondary-color);
}

.changelog-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.changelog-list li {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  padding-left: 1.25rem;
  position: relative;
}

.changelog-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

/* ========================================
   Support Section
   ======================================== */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.support-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  transition: all var(--transition-normal);
}

.support-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.support-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 1rem;
  margin: 0 auto 1.5rem;
  color: var(--primary-color);
}

.support-icon svg {
  width: 32px;
  height: 32px;
}

.support-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.support-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.support-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  font-weight: 500;
  transition: gap var(--transition-fast);
}

.support-link:hover {
  gap: 0.75rem;
  color: var(--primary-dark);
}

.support-link svg {
  width: 16px;
  height: 16px;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 2rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-light-gray);
}

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: #1e293b;
  color: #e2e8f0;
  padding: 3rem 0 1.5rem;
}

.footer a {
  color: #94a3b8;
}

.footer a:hover {
  color: #60a5fa;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 2rem;
}

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

.footer-brand .nav-brand {
  margin-bottom: 1rem;
}
.footer-brand .nav-brand img{border-radius: 6px;}
.footer-description {
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #334155;
  border-radius: 0.5rem;
  color: #94a3b8;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--primary-color);
  color: white;
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

.footer-column h4 {
  color: #e2e8f0;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #60a5fa;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  border-top: 1px solid #334155;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  color: #64748b;
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  color: #64748b;
  font-size: 0.875rem;
}

/* ========================================
   Modal / Popup
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 2.5rem;
  max-width: 520px;
  width: 90%;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-xl);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-light-gray);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error-color);
  color: var(--error-color);
}

.modal-close svg {
  width: 20px;
  height: 20px;
}

.modal-body {
  text-align: center;
}

.download-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.download-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  background: var(--bg-light-gray);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.download-option:hover {
  border-color: var(--primary-color);
  background: rgba(59, 130, 246, 0.05);
}

.download-option svg {
  width: 48px;
  height: 48px;
  color: var(--primary-color);
  margin-bottom: 0.75rem;
}

.download-option-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.download-option-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.qr-section {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.qr-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.qr-codes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

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

.qr-code {
  width: 150px;
  height: 150px;
  background: white;
  border-radius: 0.75rem;
  margin: 0 auto 0.75rem;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}
.qr-code img{max-width: 100%;}


.qr-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.qr-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.modal-footer {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.modal-footer p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

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

  .footer-brand {
    grid-column: span 2;
    max-width: none;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1rem;
    gap: 0.5rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 7rem 0 3rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .hero-stats {
    gap: 2rem;
  }

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

  .comparison-table {
    font-size: 0.875rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.75rem 1rem;
  }

  .download-requirements {
    grid-template-columns: 1fr;
  }

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

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

  .footer-brand {
    grid-column: span 1;
  }

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

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

  .qr-codes {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .shortcut-category {
    padding: 1rem;
  }

  .modal {
    padding: 1.5rem;
  }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Scroll Animation Classes */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

.mb-0 {
  margin-bottom: 0;
}

.mt-2 {
  margin-top: 2rem;
}

.mt-3 {
  margin-top: 3rem;
}