/* Subscription Manager CSS - Red, Black & White Theme */

:root {
    --primary-red: #dc3545;
    --dark-red: #c82333;
    --light-red: #f8d7da;
    --black: #000000;
    --dark-gray: #2c2c2c;
    --light-gray: #6c757d;
    --white: #ffffff;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--black);
    line-height: 1.6;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--black), var(--dark-gray));
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
}

.navbar {
    background-color: var(--primary-red) !important;
    border-bottom: 3px solid var(--dark-red);
}

.navbar-brand {
    color: var(--white) !important;
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--white) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    transition: background-color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    background-color: var(--dark-red);
    border-radius: 4px;
}

.navbar-nav .nav-link.active {
    background-color: var(--dark-red);
    border-radius: 4px;
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

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

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.card-header {
    background: linear-gradient(135deg, var(--primary-red), var(--dark-red));
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
    font-weight: 500;
}

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

.btn-secondary {
    background-color: var(--dark-gray);
    border-color: var(--dark-gray);
}

.btn-secondary:hover {
    background-color: var(--black);
    border-color: var(--black);
}

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

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

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

/* Forms */
.form-control {
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.form-select {
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem;
}

.form-select:focus {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Tables */
.table {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.table th {
    background: linear-gradient(135deg, var(--black), var(--dark-gray));
    color: var(--white);
    font-weight: 600;
    border: none;
    padding: 1rem;
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(248, 249, 250, 0.5);
}

.table-hover tbody tr:hover {
    background-color: var(--light-red);
    cursor: pointer;
}

/* Dashboard */
.dashboard-card {
    background: linear-gradient(135deg, var(--white), #f8f9fa);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.dashboard-card h3 {
    color: var(--primary-red);
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.dashboard-card p {
    color: var(--dark-gray);
    font-weight: 500;
    margin: 0;
}

/* Status badges */
.status-active {
    background-color: #28a745;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-expired {
    background-color: var(--primary-red);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-expiring {
    background-color: #ffc107;
    color: var(--black);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Alerts */
.alert {
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: var(--light-red);
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

/* Login Form */
.login-container {
    max-width: 400px;
    margin: 5rem auto;
    padding: 2rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: var(--primary-red);
    font-weight: bold;
}

/* Sidebar */
.sidebar {
    background: linear-gradient(180deg, var(--black), var(--dark-gray));
    color: var(--white);
    min-height: calc(100vh - 100px);
    padding: 1rem 0;
}

.sidebar .nav-link {
    color: var(--white);
    padding: 0.75rem 1.5rem;
    transition: background-color 0.3s ease;
}

.sidebar .nav-link:hover {
    background-color: var(--primary-red);
    color: var(--white);
}

.sidebar .nav-link.active {
    background-color: var(--primary-red);
}

/* Filters */
.filters-section {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.filters-title {
    color: var(--primary-red);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Pagination */
.pagination .page-link {
    color: var(--primary-red);
    border-color: var(--border-color);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
}

.pagination .page-link:hover {
    color: var(--dark-red);
    background-color: var(--light-red);
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem 0;
    }

    .dashboard-card {
        height: 120px;
    }

    .dashboard-card h3 {
        font-size: 2rem;
    }

    .table-responsive {
        font-size: 0.875rem;
    }
}

/* Custom utilities */
.text-red {
    color: var(--primary-red) !important;
}

.bg-red {
    background-color: var(--primary-red) !important;
}

.border-red {
    border-color: var(--primary-red) !important;
}

/* Loading spinner */
.spinner {
    border: 4px solid var(--light-gray);
    border-top: 4px solid var(--primary-red);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Chart container */
.chart-container {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-buttons .btn {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
}

/* Modal customizations */
.modal-header {
    background: linear-gradient(135deg, var(--primary-red), var(--dark-red));
    color: var(--white);
}

.modal-header .btn-close {
    filter: invert(1);
}