:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #10b981;
    --accent-hover: #34d399;
    --border: #334155;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #059669;
    --accent-hover: #10b981;
    --border: #e2e8f0;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--accent), #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.search-bar {
    width: 100%;
    max-width: 600px;
    padding: 0.75rem 1rem;
    border-radius: 9999px;
    border: 1px solid var(--border);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    margin: 1rem auto;
    display: block;
    transition: border-color 0.2s;
}

.search-bar:focus {
    border-color: var(--accent);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s, border-color 0.2s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.tag {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    align-self: flex-start;
    margin-bottom: 1rem;
    text-transform: uppercase;
    font-weight: bold;
}

.match-title {
    font-size: 1.25rem;
    margin: 0.5rem 0;
}

.match-details {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    margin: 1.5rem 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.prediction-box {
    background-color: rgba(16, 185, 129, 0.05);
    border-left: 4px solid var(--accent);
    padding: 1rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.lang-selector {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    justify-content: flex-end;
}

.lang-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.lang-btn:hover, .lang-btn.active {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

.sidebar-links {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.sidebar-links ul {
    list-style-type: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.sidebar-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 4rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
}