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

:root {
    --bg-color: #E9ECEE;
    --card-bg: #FFFFFF;
    --sidebar-bg: #153160;
    --border-color: #E2E8F0;
    --border-glow: rgba(77, 169, 245, 0.25);
    
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --sidebar-text: #F8FAFC;
    --sidebar-text-muted: #94A3B8;
    
    --accent-orange: #D35400;
    --accent-orange-hover: #E67E22;
    --accent-blue: #4DA9F5;
    --accent-blue-hover: #3B82F6;
    
    --success: #009688;
    --warning: #F59E0B;
    --danger: #F44336;
    --info: #0EA5E9;
    
    --btn-bg: var(--accent-orange);
    --btn-bg-hover: var(--accent-orange-hover);
    --btn-text: #FFFFFF;
    --btn-shadow: rgba(211, 84, 0, 0.3);

    --font-family: 'Inter', sans-serif;
    --transition: all 0.2s ease-in-out;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-orange);
}

/* Modern Card Utilities */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

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

/* Sidebar styling */
.sidebar {
    width: 255px;
    background: var(--sidebar-bg);
    border-right: none;
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    z-index: 100;
    box-shadow: 2px 0 8px rgba(0,0,0,0.1);
    overflow-y: auto;
}

.sidebar-brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 0.5rem;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 4px;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.sidebar-menu::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-link, .sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--sidebar-text-muted);
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.sidebar-link:hover, .sidebar-item:hover {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.08);
}

.sidebar-link.active, .sidebar-item.active {
    color: #FFFFFF;
    background: var(--accent-blue);
}

.sidebar-user {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--sidebar-text);
}

.user-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
}

.user-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

.logout-btn:hover {
    transform: scale(1.1);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 2rem 2rem 5rem 2rem;
    max-width: calc(100% - 260px);
    overflow-y: auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Dashboard Widgets */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(211, 84, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-orange);
}

.metric-icon.blue {
    background: rgba(77, 169, 245, 0.1);
    color: var(--accent-blue);
}

.metric-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
}

.metric-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Grid Layouts */
.content-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--btn-bg), var(--btn-bg-hover));
    color: var(--btn-text);
    box-shadow: 0 4px 14px var(--btn-shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--btn-bg-hover), var(--btn-bg));
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--btn-shadow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

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

.btn-danger:hover {
    background: #dc2626;
    background: var(--danger);
    color: #FFF;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    text-align: left;
}

th, td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: #F8FAFC;
}

tr:hover td {
    background: #F1F5F9;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-active { background: rgba(0, 150, 136, 0.1); color: var(--success); }
.badge-warning, .badge-expired { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.badge-danger, .badge-disabled { background: rgba(244, 67, 54, 0.1); color: var(--danger); }
.badge-inactive { background: rgba(100, 116, 139, 0.15); color: var(--text-secondary); }
.badge-info { background: rgba(14, 165, 233, 0.1); color: var(--info); }
.badge-primary { background: rgba(77, 169, 245, 0.1); color: var(--accent-blue); }

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-family);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 2px rgba(211, 84, 0, 0.25);
}

/* Alert notifications */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: var(--danger);
}

/* Card Lists */
.card-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.card-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 1024px) {
    .col-8, .col-6, .col-4 {
        grid-column: span 12;
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .main-content {
        max-width: 100%;
        padding: 1.25rem;
    }
}