:root {
    --bg-primary: #f0f4f8;
    --bg-card: #ffffff;
    --text-primary: #1a3a4a;
    --text-secondary: #4a6b7c;
    --accent: #008080;
    --accent-light: #26a69a;
    --border: #dbe2e8;
    --footer-bg: #005f5f;
    --footer-text: #e0f7fa;
  }
  
  [data-theme="dark"] {
    --bg-primary: #0d1b2a;
    --bg-card: #1b263b;
    --text-primary: #e0f7fa;
    --text-secondary: #a9d6e5;
    --accent: #26c6c6;
    --accent-light: #4dd0e1;
    --border: #2d4059;
    --footer-bg: #003b3b;
    --footer-text: #b2ebf2;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Geomanist', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.3s, color 0.3s;
    min-height: 100vh;
    padding-bottom: 80px;
  }
  
  header {
    background: var(--bg-card);
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    margin: 0 auto 24px;
    max-width: 1400px;
    border-radius: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
  }
  
  .header-left h1 {
    font-size: 2rem;
    color: var(--accent);
    font-weight: 700;
  }
  
  .search-box {
    display: flex;
    gap: 10px;
    flex: 1;
    max-width: 600px;
  }
  
  .search-box input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
  }
  
  .search-box input::placeholder {
    color: var(--text-secondary);
  }
  
  .theme-toggle {
    background: var(--accent);
    color: white;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }
  
  .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  .main-layout {
    display: flex;
    gap: 30px;
    margin-top: 20px;
  }
  
  .filter-sidebar {
    width: 260px;
    background: var(--bg-card);
    padding: 20px;
    border-radius: 16px;
    height: fit-content;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
  
  .filter-sidebar h3 {
    margin-bottom: 16px;
    color: var(--accent);
  }
  
  .filter-sidebar label {
    display: block;
    margin: 10px 0 6px;
    font-size: 0.9rem;
    color: var(--text-secondary);
  }
  
  .filter-sidebar select,
  .filter-sidebar input[type="range"] {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
  }
  
  .filter-sidebar button {
    width: 100%;
    padding: 10px;
    background: var(--accent);
    color: rgb(4, 46, 46);
    border: none;
    border-radius: 8px;
    margin-top: 16px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s;
  }
  
  .filter-sidebar button:hover {
    background: var(--accent-light);
  }
  
  .feature-filters {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 10px 0 16px;
  }
  
  .feature-filters label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    color: var(--text-secondary);
  }
  
  .content-area {
    flex: 1;
  }
  
  .phone-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 24px;
  }
  
  .phone-card,
  .modal-content {
    background: #ffffff !important;
  }
  
  .phone-card *,
  .modal-content * {
    color: rgb(4, 46, 46) !important;
    border-color: rgb(4, 46, 46) !important;
  }
  
  .phone-card {
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
  }
  
  .phone-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.12);
  }
  
  #compareSearchInput {
    padding: 12px 24px;
    background: #ffffff;
    color: rgb(4, 46, 46);
    border: 1px solid rgb(4, 46, 46);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
  }

  #compareSearchInput:hover,
  #compareSearchInput:focus{
    background: var(--accent-light);
    transition: 0.2s ease-in-out;
  }

  .phone-card img {
    width: 100%;
    height: 160px;
    object-fit: contain;
    margin-bottom: 12px;
  }
  
  .phone-card h3 {
    font-size: 1.1rem;
    text-align: center;
  }
  
  .compare-btn {
    display: block;
    width: 80%;
    margin: 12px auto 0;
    padding: 8px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s;
  }
  
  .compare-btn:hover {
    background: var(--accent-light);
  }
  
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    z-index: 2000;
    justify-content: center;
    align-items: flex-start;
    padding: 60px 20px 20px;
    overflow-y: auto;
  }
  
  .modal-content {
    border-radius: 20px;
    max-width: 1000px;
    width: 100%;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
    animation: modalIn 0.3s ease-out;
  }
  
  @keyframes modalIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .modal-image img {
    max-width: 300px;
    max-height: 400px;
    object-fit: contain;
    border-radius: 12px;
    margin: 0 auto 20px;
    display: block;
  }
  
  .modal-title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--accent);
    font-weight: bold;
  }
  
  .specs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  
  .spec-category h3 {
    margin-bottom: 10px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
  }
  
  .spec-item {
    display: flex;
    margin-bottom: 6px;
    font-size: 0.95rem;
  }
  
  .spec-key {
    min-width: 120px;
    font-weight: 600;
  }
  
  .compare-modal-content {
    max-width: 1200px;
    padding: 30px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
  }
  
  .compare-section {
    flex: 1;
    text-align: center;
  }
  
  .compare-section h3 {
    margin-bottom: 16px;
    color: var(--accent);
  }
  
  .compare-divider {
    width: 1px;
    background: var(--border);
    margin: 0 20px;
  }
  
  .compare-search-box {
    display: flex;
    gap: 8px;
    margin-top: 16px;
  }
  
  .compare-search-box input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
  }
  
  .compare-search-box button {
    padding: 10px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
  }
  
  .compare-results {
    margin-top: 16px;
    max-height: 400px;
    overflow-y: auto;
    background: #ffffff !important;
    color: rgb(4, 46, 46) !important;
    border-radius: 12px;
    padding: 12px;
  }
  
  .compare-result-item {
    padding: 10px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    color: rgb(4, 46, 46) !important;
    border-color: var(--border) !important;
  }
  
  .compare-result-item:last-child {
    border-bottom: none;
  }
  
  .compare-result-item:hover {
    background: #f0f8f8 !important;
  }
  
  .fixed-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 12px;
    font-size: 0.9rem;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
  }
  
  .fixed-footer a {
    color: #ffffff;
    text-decoration: none;
    font-weight: bold;
  }
  
  .fixed-footer a:hover {
    text-decoration: underline;
  }
  
  .stats {
    display: flex;
    gap: 20px;
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 0.95rem;
  }

  .search-box button {
    padding: 12px 24px;
    background: var(--accent);
    color: rgb(4, 46, 46);
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
  }
  
  .search-box button:hover {
    background: var(--accent-light);
  }
  
  .compare-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
    margin-top: 16px;
  }
  
  .compare-table th,
  .compare-table td {
    padding: 14px 16px;
    text-align: center;
    vertical-align: middle;
    line-height: 1.4;
    background: #ffffff !important;
    color: rgb(4, 46, 46) !important;
    border-color: var(--border) !important;
    border-radius: 8px;
    margin: 0 4px;
    flex: 1;
  }
  
  .compare-table th {
    font-weight: 600;
    color: var(--accent);
    background-color: #f0f8f8;
  }
  
  .compare-table tr {
    display: flex;
    width: 100%;
  }

  .compare-table-content {
    position: relative;
    width: 100%;
    max-width: 1200px;
    padding: 30px;
  }
  
  .rotate-message {
    display: block;
    text-align: center;
    font-size: 1.2rem;
    color: var(--accent);
    padding: 40px 20px;
    font-weight: 600;
  }
  
  .compare-table-wrapper {
    display: none;
  }

  @media (min-width: 768px), (orientation: landscape) {
    .rotate-message {
      display: none !important;
    }
    .compare-table-wrapper {
      display: block !important;
    }
  }
  
  @media (max-width: 900px) {
    .main-layout {
      flex-direction: column;
    }
    .filter-sidebar {
      width: 100%;
    }
    .specs-grid {
      grid-template-columns: 1fr;
    }
    .compare-modal-content {
      flex-direction: column;
      gap: 30px;
    }
    .compare-divider {
      display: none;
    }
  }

.phone-card, .compare-btn, .search-box button, .filter-sidebar button, .theme-toggle {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal[style*="flex"] {
  opacity: 1;
  pointer-events: auto;
}

.search-box input:focus,
.compare-search-box input:focus,
.filter-sidebar input:focus,
.filter-sidebar select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.compare-btn:active,
.search-box button:active,
.filter-sidebar button:active {
  transform: scale(0.98);
}

.phone-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(0,128,128,0.05), transparent);
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.phone-card.loading::before {
  opacity: 1;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  to { transform: translateX(200%); }
}

.fixed-footer a {
  transition: color 0.2s;
}

.stats > div {
  background: rgba(0, 128, 128, 0.1);
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: 600;
}

input[type="range"] {
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.feature-filters input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-right: 6px;
  accent-color: var(--accent);
}

button {
  font-family: 'Geomanist', system-ui, sans-serif;
}