/* Default Dark Theme */
:root {
    --primary: #667eea;
    --secondary: #764ba2;
    --bg-dark: #1a1a2e;
    --bg-light: #16213e;
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-light: #ffffff;
    --text-dark: #333333;
    --accent: #f093fb;
    --success: #38ef7d;
    --danger: #f5576c;
    --warning: #f2994a;
}

body {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-light) 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-light);
}

.navbar {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    font-weight: 600;
    color: #fff !important;
}

.card {
    background: var(--card-bg);
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    color: var(--text-dark);
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 15px 15px 0 0 !important;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.price-tag {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: bold;
}

.btn-donate {
    background: linear-gradient(135deg, var(--accent) 0%, var(--danger) 100%);
    border: none;
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-donate:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(245, 87, 108, 0.4);
}

.text-white { color: #fff !important; }
.text-light { color: rgba(255,255,255,0.8) !important; }
.text-muted { color: #6c757d !important; }

footer {
    background: rgba(0, 0, 0, 0.3);
    margin-top: auto;
    padding: 20px 0;
}

.table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

.badge {
    padding: 8px 12px;
    border-radius: 20px;
}

.form-control {
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    padding: 12px 15px;
}

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

.modal-content {
    border-radius: 15px;
    border: none;
}

.dropdown-menu {
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.nav-link.active {
    color: var(--primary) !important;
    font-weight: 600;
}

.nav-link:hover {
    color: var(--primary) !important;
}

.alert {
    border-radius: 10px;
    border: none;
}

.alert-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #d63031 100%);
    color: white;
}

.alert-success {
    background: linear-gradient(135deg, var(--success) 0%, #11998e 100%);
    color: white;
}

.alert-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #f39c12 100%);
    color: white;
}