/* ==========================================================================
   MDFRP Central Licensing Authority - Premium Dashboard Stylesheet
   ========================================================================== */

:root {
    --primary: #1b4f72;
    --primary-light: #2874a6;
    --primary-dark: #153c57;
    --accent: #ffd75a;
    --accent-hover: #f0c542;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #0ea5e9;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --sidebar-bg: #112233;
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --sidebar-active-bg: #1b4f72;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
}

/* Layout Framework */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #ffffff;
}

.sidebar-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), #e6b800);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #112233;
    font-size: 1.25rem;
    font-weight: 800;
}

.sidebar-logo-text {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #ffffff;
}

.sidebar-logo-sub {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.sidebar-nav {
    list-style: none;
    padding: 20px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-nav-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.sidebar-nav-item a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.sidebar-nav-item.active a {
    color: var(--sidebar-active);
    background: var(--sidebar-active-bg);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(27, 79, 114, 0.35);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.topbar {
    height: 68px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.content-body {
    padding: 32px;
    flex: 1;
}

/* Stat Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-card-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.75px;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.1;
}

.stat-card-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.stat-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.stat-primary .stat-icon { background: rgba(27, 79, 114, 0.1); color: var(--primary); }
.stat-success .stat-icon { background: rgba(16, 185, 129, 0.12); color: var(--success); }
.stat-warning .stat-icon { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.stat-danger .stat-icon { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.stat-info .stat-icon { background: rgba(14, 165, 233, 0.12); color: var(--info); }

/* Card Component */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 28px;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
}

.card-body {
    padding: 24px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.table th {
    text-align: left;
    padding: 12px 16px;
    background: #f8fafc;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background: #fbfcfe;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-primary { background: #e0f2fe; color: #0369a1; }
.badge-secondary { background: #f1f5f9; color: #475569; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

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

.btn-primary:hover {
    background: var(--primary-light);
    color: #ffffff;
}

.btn-accent {
    background: var(--accent);
    color: #112233;
}

.btn-accent:hover {
    background: var(--accent-hover);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background: #f1f5f9;
}

.btn-danger {
    background: var(--danger);
    color: #ffffff;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-warning {
    background: var(--warning);
    color: #ffffff;
}

.btn-warning:hover {
    background: #d97706;
}

/* License Key Monospace Badge */
.license-key-tag {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary);
    background: #eef5fa;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px dashed #b9d5e9;
    letter-spacing: 0.5px;
    display: inline-block;
}

/* Forms */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-main);
}

.form-control, .form-select {
    width: 100%;
    padding: 9px 14px;
    font-size: 0.92rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: #ffffff;
    color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 79, 114, 0.15);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 220px;
}

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: #ffffff;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 540px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    background: #f8fafc;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Alert Boxes */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info { background: #e0f2fe; color: #0369a1; border: 1px solid #bae6fd; }

/* Responsive adjustments */
@media (max-width: 900px) {
    .app-container { flex-direction: column; }
    .sidebar { width: 100%; }
    .content-body { padding: 18px; }
}