@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700&display=swap');

:root {
    --primary-color: #4361ee;
    --primary-dark: #3a56d4;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --light-bg: #f8fafc;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    --card-hover-shadow: 0 20px 25px -12px rgba(0, 0, 0, 0.1);
    --border-radius-card: 1rem;
    --border-radius-btn: 0.5rem;
    --transition: all 0.2s ease;
}

* {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fe 0%, #eef2ff 100%);
    min-height: 100vh;
    padding: 2rem 0;
}

.container, .container-fluid {
    max-width: 1400px;
}

.card {
    border: none;
    border-radius: var(--border-radius-card);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.96);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--card-hover-shadow);
    transform: translateY(-2px);
}

.card-header {
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.25rem;
}

.btn {
    border-radius: var(--border-radius-btn);
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.table {
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.table thead th {
    background: #f1f5f9;
    color: #1e293b;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: #fefce8;
}

.table td {
    padding: 0.9rem 1rem;
    vertical-align: middle;
    font-size: 0.9rem;
}

.form-control, .form-select {
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    outline: none;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #0f172a;
}

.badge {
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 2rem;
    letter-spacing: 0.3px;
}

.alert {
    border: none;
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
}

.page-header {
    background: white;
    border-radius: var(--border-radius-card);
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1, .page-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.search-form {
    background: white;
    border-radius: var(--border-radius-card);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

/* 响应式 */
@media (max-width: 768px) {
    body {
        padding: 1rem 0.75rem;
    }
    .card-header {
        padding: 0.9rem 1rem;
        font-size: 1.1rem;
    }
    .card-body {
        padding: 1rem;
    }
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .table {
        min-width: 640px;
        font-size: 0.85rem;
    }
    .table td, .table th {
        padding: 0.6rem 0.75rem;
        white-space: nowrap;
    }
    .page-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    .page-header > div {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    .btn {
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
    }
    .row.g-3 > [class*="col-"] {
        margin-bottom: 0.75rem;
    }
    .form-control, .form-select {
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
    }
    .modal-dialog {
        margin: 1rem;
    }
    .d-flex.justify-content-between.align-items-center {
        flex-direction: column;
        gap: 0.75rem;
    }
    .d-flex.justify-content-between.align-items-center > div {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    .table td .btn-sm {
        white-space: nowrap;
        margin-right: 4px;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 0.35rem 0.8rem;
        font-size: 0.8rem;
    }
    .badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.55rem;
    }
    .alert {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
    .page-header h1, .page-header h2 {
        font-size: 1.25rem;
    }
}

.expiring-soon {
    background-color: #fffbeb !important;
}
.expired {
    background-color: #fef2f2 !important;
}
.rebound {
    background-color: #f1f5f9 !important;
    opacity: 0.85;
}