:root {
  /* Color Palette - Red and White Theme */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --surface: #FFFFFF;
  --text-primary: #1A1A1A;
  --text-secondary: #666666;
  --accent-primary: #D32F2F;
  --accent-secondary: #B71C1C;
  --highlight: #FFCDD2;
  --warning: #FFB300;
  --border: #E0E0E0;
  --border-hover: #D32F2F;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  
  /* Radii & Shadows */
  --radius-card: 18px;
  --radius-button: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.05);
  --shadow-hover: 0 12px 24px -4px rgba(211, 47, 47, 0.15);
  
  /* Layout */
  --container-width: 1200px;
  --container-article: 800px;
  --nav-height: 80px;
  --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body.dark-mode {
  --bg-primary: #121212;
  --bg-secondary: #1E1E1E;
  --surface: #242424;
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --border: #333333;
  --accent-primary: #EF5350;
  --accent-secondary: #E53935;
  --border-hover: #EF5350;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-hover: 0 12px 24px -4px rgba(239, 83, 80, 0.2);
}

/* 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);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition), color var(--transition);
}

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

a:hover {
  color: var(--accent-secondary);
}

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

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1.5rem; color: var(--text-secondary); }

/* Layout Containers */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-article {
  max-width: var(--container-article);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section-sm {
  padding: 3rem 0;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

body.dark-mode .navbar {
  background-color: rgba(36, 36, 36, 0.8);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-brand span {
  color: var(--accent-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-button);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--accent-secondary);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
}

.btn-secondary {
  background-color: var(--surface);
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  color: var(--accent-primary);
}

/* Reading Progress */
.reading-progress-container {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: transparent;
}
.reading-progress-bar {
  height: 100%;
  background: var(--accent-primary);
  width: 0%;
  transition: width 0.1s ease;
}

/* Hero Section */
.hero {
  padding: 8rem 0 6rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero h1 {
  font-size: 4rem;
  max-width: 900px;
  margin: 0 auto 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* Notices */
.notice-box {
  background-color: var(--surface);
  border-left: 4px solid var(--warning);
  padding: 1.5rem;
  border-radius: 0 var(--radius-button) var(--radius-button) 0;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}
.notice-box.info {
  border-left-color: var(--accent-primary);
}

/* Cards & Grids */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  background-color: var(--bg-secondary);
}

.card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid var(--border);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: flex;
  gap: 1rem;
}

.card-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Review Specific Content */
.review-header {
  text-align: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.editorial-block {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-card);
  padding: 2rem;
  margin: 2rem 0;
  border: 1px solid var(--border);
}

.editorial-block h4 {
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  position: relative;
}

.comparison-table th:hover {
  color: var(--accent-primary);
}

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

.comparison-table tr:hover td {
  background-color: var(--bg-primary);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  background-color: var(--surface);
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: border-color var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

/* Footer */
.footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

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

.footer-col ul li a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.affiliate-disclosure {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 1rem;
  border-radius: 8px;
  margin-top: 2rem;
  text-align: left;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 600px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 1.5rem;
  z-index: 9999;
  display: none;
  flex-direction: column;
  gap: 1rem;
}

.cookie-banner.show {
  display: flex;
}

.cookie-content h4 {
  margin-bottom: 0.5rem;
}

.cookie-content p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

/* Dark Mode Toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: all var(--transition);
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* Filter Controls */
.filter-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 0.9rem;
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
}