:root {
    --tg-theme-bg-color: #17212b;
    --tg-theme-text-color: #f5f5f5;
    --tg-theme-hint-color: #708499;
    --tg-theme-link-color: #64b5ef;
    --tg-theme-button-color: #5288c1;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #232e3c;
    
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent: #FFD700; /* Gold */
}

body {
    background-color: var(--tg-theme-bg-color, #17212b);
    color: var(--tg-theme-text-color, #ffffff);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    padding: 20px;
    max-width: 600px;
    margin: 0 auto;
}

/* Profile Header */
.profile-card {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.avatar-placeholder {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #64b5ef, #5288c1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin-right: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.profile-info h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.rank-badge {
    background: rgba(255, 215, 0, 0.2);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
    margin-top: 5px;
    display: inline-block;
}

/* Cards */
.card {
    background: var(--tg-theme-secondary-bg-color, #232e3c);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.balance-card {
    text-align: center;
    background: linear-gradient(135deg, rgba(82, 136, 193, 0.2), rgba(35, 46, 60, 0.5));
    border: 1px solid rgba(255,255,255,0.05);
}

.card-title {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #aaa);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.balance-amount {
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.balance-label {
    font-size: 14px;
    opacity: 0.7;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 25px;
}

.stat-item {
    background: var(--tg-theme-secondary-bg-color, #232e3c);
    border-radius: 12px;
    padding: 15px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 18px;
    font-weight: bold;
    color: var(--tg-theme-link-color, #64b5ef);
}

.stat-label {
    font-size: 11px;
    color: var(--tg-theme-hint-color, #aaa);
    margin-top: 4px;
}

/* Leaderboard */
.leaderboard-section h3 {
    margin-bottom: 15px;
    font-size: 18px;
}

.leaderboard-list {
    background: var(--tg-theme-secondary-bg-color, #232e3c);
    border-radius: 16px;
    overflow: hidden;
}

.lb-row {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.lb-row:last-child {
    border-bottom: none;
}

.lb-row.is-me {
    background: rgba(100, 181, 239, 0.15);
    border-left: 3px solid #64b5ef;
}

.lb-rank {
    width: 30px;
    font-weight: bold;
    color: var(--tg-theme-hint-color, #aaa);
}

.lb-rank.top-1 { color: #FFD700; }
.lb-rank.top-2 { color: #C0C0C0; }
.lb-rank.top-3 { color: #CD7F32; }

.lb-name {
    flex-grow: 1;
    font-weight: 500;
}

.lb-score {
    font-weight: bold;
    color: var(--tg-theme-link-color, #64b5ef);
}

.loading {
    padding: 20px;
    text-align: center;
    color: var(--tg-theme-hint-color);
}