:root {
    --primary-color: #1a202c;
    --secondary-color: #2d3748;
    --accent-color: #38b2ac;
    --background-color: #f7fafc;
    --card-background-color: #ffffff;
    --text-color: #4a5568;
    --text-light: #a0aec0;
    --border-color: #e2e8f0;
    --success-color: #48bb78;
    --danger-color: #f56565;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* --- Header --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}
.logo h1 {
    margin: 0;
    font-weight: 700;
    font-size: 2rem;
    color: var(--primary-color);
    letter-spacing: -1.5px;
}
.logo .logo-accent {
    color: var(--accent-color);
}
.logo .logo-tagline {
    font-size: 1rem;
    color: var(--text-light);
    margin-left: 5px;
}
.site-switcher a {
    text-decoration: none;
    color: var(--text-light);
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.2s ease-in-out;
}
.site-switcher a:hover {
    color: var(--accent-color);
}

/* --- Main Layout --- */
main {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
}
.filter-sidebar {
    background: var(--card-background-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02), 0 1px 2px rgba(0,0,0,0.04);
    height: fit-content;
}
.filter-group {
    margin-bottom: 25px;
}
.filter-group h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-group h4 .fa-solid {
    margin-right: 8px;
    color: var(--text-light);
}

/* --- Form Elements --- */
input[type="text"], input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 1rem;
    background-color: #fdfdff;
}
input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.2);
}
.price-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}
.merchant-list {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    padding: 10px;
    background-color: #fff;
    border-radius: 6px;
}
.merchant-list label, .filter-group label {
    display: block;
    margin-bottom: 8px;
    cursor: pointer;
    font-weight: 500;
}
.merchant-controls {
    font-size: 0.9rem;
    margin-bottom: 10px;
}
.merchant-controls a {
    text-decoration: none;
    color: var(--accent-color);
    font-weight: 600;
}

/* --- NEW: Styles for Search Suggestions --- */
.search-group {
    position: relative;
}
#suggestionsContainer {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 6px 6px;
    z-index: 1000;
    max-height: 250px;
    overflow-y: auto;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.suggestion-item {
    padding: 10px;
    cursor: pointer;
}
.suggestion-item:hover {
    background-color: var(--background-color);
}


/* --- Results Area --- */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
#resultsCount {
    font-weight: 600;
    color: var(--primary-color);
}
.results-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-background-color);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02), 0 1px 2px rgba(0,0,0,0.04);
}
.results-table th, .results-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.results-table th {
    background-color: #f9fafb;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-light);
}
.results-table tr:last-child td {
    border-bottom: none;
}
.results-table tr:hover {
    background-color: #f9fafb;
}
.new-badge {
    background-color: var(--success-color);
    color: white;
    font-size: 0.7em;
    font-weight: bold;
    padding: 3px 8px;
    border-radius: 12px;
    margin-right: 8px;
    vertical-align: middle;
}
.price-up { color: var(--danger-color); }
.price-down { color: var(--success-color); }
.price-wrapper {
    position: relative;
    cursor: help;
    font-weight: 600;
    color: var(--primary-color);
}
.price-wrapper[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--secondary-color);
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.9em;
    white-space: pre-wrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 10;
    width: max-content;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.price-wrapper[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* --- Loader & Messages --- */
.loader-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}
.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--accent-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.no-results, .error-message {
    text-align: center;
    padding: 50px;
    font-size: 1.2rem;
    font-weight: 500;
    background: var(--card-background-color);
    border-radius: 8px;
}

/* --- Pagination --- */
.pagination {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.pagination ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 5px;
}
.pagination li {
    display: inline-block;
}
.pagination a, .pagination span {
    text-decoration: none;
    color: var(--text-color);
    padding: 8px 14px;
    border-radius: 6px;
    transition: background-color 0.2s ease-in-out;
    font-weight: 600;
    display: block;
}
.pagination a:hover {
    background-color: var(--border-color);
}
.pagination .active a {
    background-color: var(--accent-color);
    color: white;
}
.pagination .disabled span {
    color: var(--text-light);
    cursor: not-allowed;
}
.pagination .ellipsis span {
    padding: 8px;
}