/* =========================================
   1. GLOBAL VARIABLES & RESET
   ========================================= */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #ffc107; /* Gold/Yellow for Coins/Premium */
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --dark-color: #2c3e50;
    --light-bg: #f4f6f9;
    --white: #ffffff;
    --text-muted: #7f8c8d;
    --border-radius: 12px;
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.05);
    --shadow-md: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --font-main: 'Poppins', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--light-bg);
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* =========================================
   2. TYPOGRAPHY
   ========================================= */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5em;
}

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-accent { color: var(--accent-color) !important; }
.text-muted { color: var(--text-muted) !important; }

.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }

/* =========================================
   3. BUTTONS
   ========================================= */
.btn {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 6px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-warning {
    background-color: var(--accent-color);
    color: #333;
    box-shadow: 0 4px 6px rgba(255, 193, 7, 0.3);
}

.btn-warning:hover {
    background-color: #ffca2c;
    transform: translateY(-2px);
    color: #333;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-block {
    width: 100%;
    display: block;
}

/* =========================================
   4. CARDS & CONTAINERS
   ========================================= */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    background: var(--white);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: var(--white);
    border-bottom: 1px solid #eee;
    font-weight: 700;
    padding: 15px 20px;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
}

.card-body {
    padding: 20px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border-left: 5px solid var(--primary-color);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.stat-card.premium { border-left-color: var(--accent-color); }
.stat-card.success { border-left-color: var(--success-color); }
.stat-card.danger { border-left-color: var(--danger-color); }

/* =========================================
   5. FORMS & INPUTS
   ========================================= */
.form-control, .form-select {
    border-radius: 8px;
    padding: 12px 15px;
    border: 1px solid #ddd;
    background-color: #f8f9fa;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.form-control:focus, .form-select:focus {
    background-color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-label {
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.input-group-text {
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    color: #777;
}

/* =========================================
   6. TABLES
   ========================================= */
.table-responsive {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background: var(--white);
}

.table {
    margin-bottom: 0;
    vertical-align: middle;
}

.table thead th {
    background-color: #f8f9fa;
    color: #555;
    font-weight: 700;
    border-bottom: 2px solid #dee2e6;
    padding: 15px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: 15px;
    vertical-align: middle;
    border-bottom: 1px solid #eee;
    color: #444;
}

.table-hover tbody tr:hover {
    background-color: #f1f4f8;
}

/* =========================================
   7. BADGES & STATUS
   ========================================= */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.badge-success { background-color: rgba(46, 204, 113, 0.15); color: #27ae60; }
.badge-warning { background-color: rgba(243, 156, 18, 0.15); color: #d35400; }
.badge-danger { background-color: rgba(231, 76, 60, 0.15); color: #c0392b; }
.badge-info { background-color: rgba(52, 152, 219, 0.15); color: #2980b9; }
.badge-secondary { background-color: rgba(149, 165, 166, 0.15); color: #7f8c8d; }

/* =========================================
   8. ANIMATIONS
   ========================================= */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(255, 193, 7, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-pulse {
    animation: pulse 1.5s infinite;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

/* =========================================
   9. UTILITIES
   ========================================= */
.shadow-sm-custom { box-shadow: var(--shadow-sm); }
.shadow-md-custom { box-shadow: var(--shadow-md); }
.shadow-lg-custom { box-shadow: var(--shadow-lg); }

.rounded-custom { border-radius: var(--border-radius); }

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.bg-gradient-gold {
    background: linear-gradient(135deg, #f1c40f, #f39c12);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* =========================================
   10. RESPONSIVE ADJUSTMENTS
   ========================================= */
@media (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    
    .card {
        margin-bottom: 15px;
    }
    
    .table-responsive {
        font-size: 0.85rem;
    }
    
    .btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1; 
}

::-webkit-scrollbar-thumb {
    background: #ccc; 
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #aaa; 
}