/* Dark Navy Theme - CVVChecker */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --accent-teal: #14b8a6;
    --accent-cyan: #38bdf8;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --hover-bg: #2d3748;
}

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

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

/* Sidebar Layout */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.sidebar-user {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section-header {
    padding: 1rem 1.5rem 0.5rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
}

.nav-item {
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
    border-left-color: var(--accent-teal);
}

.nav-link.active {
    background-color: var(--hover-bg);
    color: var(--accent-teal);
    border-left-color: var(--accent-teal);
}

.nav-link i {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

.main-content {
    margin-left: 260px;
    flex: 1;
    min-height: 100vh;
}

.topbar {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.credits-badge {
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
}

.content-area {
    padding: 2rem;
}

/* Cards */
.card-dark {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(20, 184, 166, 0.1);
}

.card-header-dark {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* Forms */
.form-label-dark {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-control-dark {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control-dark:focus {
    outline: none;
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-control-dark::placeholder {
    color: var(--text-secondary);
}

textarea.form-control-dark {
    resize: vertical;
    min-height: 120px;
}

select.form-control-dark {
    cursor: pointer;
}

/* Buttons */
.btn-dark {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary-dark {
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan));
    color: white;
}

.btn-primary-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(20, 184, 166, 0.3);
}

.btn-secondary-dark {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary-dark:hover {
    background-color: var(--hover-bg);
}

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

.btn-outline-dark:hover {
    background-color: var(--accent-teal);
    color: white;
}

/* Card Type Selector */
.card-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.card-type-btn {
    padding: 1rem;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-type-btn:hover {
    border-color: var(--accent-teal);
    transform: translateY(-2px);
}

.card-type-btn.active {
    border-color: var(--accent-teal);
    background-color: rgba(20, 184, 166, 0.1);
}

.card-type-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.card-type-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Generated Cards Display */
.generated-cards-area {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

.generated-card-item {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    background-color: var(--bg-secondary);
    border-radius: 0.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card-dark {
    background: linear-gradient(135deg, var(--bg-secondary), var(--hover-bg));
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Badges */
.badge-dark {
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background-color: #10b981;
    color: white;
}

.badge-danger {
    background-color: #ef4444;
    color: white;
}

.badge-warning {
    background-color: #f59e0b;
    color: white;
}

.badge-info {
    background-color: var(--accent-cyan);
    color: white;
}

/* Table */
.table-dark {
    width: 100%;
    border-collapse: collapse;
}

.table-dark thead {
    background-color: var(--bg-primary);
}

.table-dark th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.table-dark td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.table-dark tbody tr:hover {
    background-color: var(--hover-bg);
}

/* Utilities */
.text-teal {
    color: var(--accent-teal);
}

.text-cyan {
    color: var(--accent-cyan);
}

.text-secondary {
    color: var(--text-secondary);
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

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

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-teal);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 0;
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        width: 260px;
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}