/* leaderboard.css */
:root {
    --primary-color: #4f46e5;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --gold: #ffc107;
    --silver: #c0c0c0;
    --bronze: #cd7f32;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

.leaderboard-header {
    background-color: var(--card-bg);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
}
.leaderboard-header h1 {
    font-size: 1.5rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary-color);
}
.back-btn {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 600;
    transition: color 0.2s ease;
}
.back-btn:hover { color: var(--primary-color); }
.header-placeholder { width: 60px; } /* To balance the back button */

.leaderboard-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Podium Styles */
.podium {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 1rem;
    margin-bottom: 3rem;
}
.podium-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    width: 200px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: transform 0.3s ease;
}
.podium-item:hover { transform: translateY(-10px); }

.podium-rank {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    color: white;
    font-size: 1.2rem;
    border: 3px solid white;
}
.podium-rank i { font-size: 1rem; margin-right: 5px; }

.user-avatar { 
    font-size: 4rem; 
    color: var(--text-light); 
    margin-bottom: 0.5rem;
    height: 80px;
    width: 80px;
    margin-left: auto;
    margin-right: auto;
}
.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
}
.user-name { font-weight: 600; font-size: 1.1rem; }
.user-score { font-size: 1rem; color: var(--primary-color); font-weight: 700; margin-top: 0.5rem; }

/* Podium Rank Colors */
.podium-item.rank-1 { order: 2; height: 220px; border-top: 5px solid var(--gold); }
.podium-item.rank-1 .podium-rank { background-color: var(--gold); }
.podium-item.rank-1 .user-avatar img { border-color: var(--gold); }

.podium-item.rank-2 { order: 1; height: 190px; border-top: 5px solid var(--silver); }
.podium-item.rank-2 .podium-rank { background-color: var(--silver); }
.podium-item.rank-2 .user-avatar img { border-color: var(--silver); }

.podium-item.rank-3 { order: 3; height: 170px; border-top: 5px solid var(--bronze); }
.podium-item.rank-3 .podium-rank { background-color: var(--bronze); }
.podium-item.rank-3 .user-avatar img { border-color: var(--bronze); }

/* Rankings List (4-10) */
.rankings-list {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}
.rankings-list table {
    width: 100%;
    border-collapse: collapse;
}
.rankings-list tr {
    transition: background-color 0.2s ease;
}
.rankings-list tr:hover {
    background-color: #f8fafc;
}
.rankings-list td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}
.rankings-list tr:last-child td {
    border-bottom: none;
}
.rank-cell { font-weight: 700; font-size: 1.1rem; color: var(--text-light); text-align: center; width: 50px; }
.name-cell { display: flex; align-items: center; gap: 1rem; font-weight: 600; }
.user-avatar-small {
    width: 40px;
    height: 40px;
    font-size: 40px;
    color: var(--text-light);
    flex-shrink: 0;
}
.user-avatar-small img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}
.score-cell { text-align: right; font-weight: 700; color: var(--primary-color); }

/* Empty State */
.empty-state { text-align: center; padding: 3rem; color: var(--text-light); }
.empty-state i { font-size: 3rem; margin-bottom: 1rem; }

@media (max-width: 768px) {
    .podium { flex-direction: column; align-items: center; }
    .podium-item { order: 0 !important; height: auto !important; width: 80%; }
}