:root {
    --bg-color: #0a0a0c;
    --card-bg: rgba(20, 20, 24, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f0f0f0;
    --text-secondary: #888890;
    --accent-color: #d4af37; /* Gold for finance */
    --accent-hover: #f1c40f;
    --danger-color: #e74c3c;
    --success-color: #2ecc71;
    --font-family: 'Inter', sans-serif;
}

[data-theme="light"] {
    --bg-color: #f8f9fa;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-border: rgba(0, 0, 0, 0.1);
    --text-primary: #1a1a1a;
    --text-secondary: #5a5a64;
    --accent-color: #b8860b; /* Darker gold for light mode */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(10, 10, 12, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.theme-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: var(--font-family);
    transition: all 0.2s;
}

.theme-btn:hover {
    background: var(--card-border);
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.live-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    display: inline-block;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.7); }
    70% { box-shadow: 0 0 0 6px rgba(46, 204, 113, 0); }
    100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

/* Layout Container */
.container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    gap: 2rem;
}

/* Sidebar */
.sidebar {
    width: 250px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.filter-title {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.filter-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: -1rem;
    margin-bottom: 0.5rem;
}

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

.filter-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.filter-item:hover {
    background-color: var(--card-border);
}

.filter-checkbox {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 1px solid var(--text-secondary);
    border-radius: 4px;
    background-color: transparent;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
}

.filter-checkbox:checked {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.filter-checkbox:checked::after {
    content: '✓';
    position: absolute;
    color: var(--bg-color);
    font-size: 12px;
    font-weight: bold;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.filter-label {
    font-size: 0.95rem;
    user-select: none;
    font-weight: 500;
}

.legal-notice {
    margin-top: auto;
    padding: 1rem;
    background-color: rgba(255,255,255,0.03);
    border-radius: 8px;
    border-left: 3px solid var(--text-secondary);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.legal-notice h3 {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    text-transform: uppercase;
}

/* Feed Section */
.news-feed {
    flex-grow: 1;
}

.feed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.feed-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.loader {
    font-size: 0.85rem;
    color: var(--accent-color);
    display: none;
}

/* Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* News Card */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.4);
    border-color: rgba(212, 175, 55, 0.4);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.source-badge {
    background-color: rgba(255,255,255,0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    color: var(--accent-color);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-snippet {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: auto;
}

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

.read-more {
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
    transition: color 0.2s;
}

.card:hover .read-more {
    color: var(--accent-hover);
}

/* Responsive */
@media (max-width: 900px) {
    .container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        margin-bottom: 2rem;
    }
    .filter-list {
        flex-direction: row;
        flex-wrap: wrap;
    }
}