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

:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --secondary: #ec4899;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #0ea5e9;
    --dark: #0f172a;
    --light: #f8fafc;
    --bg-color: #0b1120;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;

    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --z-sidebar: 1000;
    --z-overlay: 950;
    --z-header: 900;
    --z-modal: 2000;

    --font-main: 'Kanit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

body {
    background-color: var(--bg-color);
    background-image:
        radial-gradient(ellipse at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

.glass-nav {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
}

.sidebar-overlay {
    display: none;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-main);
    font-weight: 600;
}

p {
    line-height: 1.6;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-control::file-selector-button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    margin-right: 1rem;
    transition: var(--transition);
}

.form-control::file-selector-button:hover {
    background: var(--primary-hover);
}

select.form-control option {
    background: var(--dark);
    color: var(--light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #b91c1c);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-info {
    background: linear-gradient(135deg, var(--info), #0284c7);
    color: white;
}

.btn-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    color: white;
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-block {
    width: 100%;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    letter-spacing: 0.02em;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: var(--transition);
}

.badge i {
    margin-right: 0.4rem;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.1);
}

.badge-approved {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.badge-rejected {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.1);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: 12px;
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1rem;
}

.table th,
.table td {
    padding: 1.25rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
    vertical-align: middle;
}

.table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: rgba(255, 255, 255, 0.02);
}

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

.table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Table Utilities */
.col-nowrap {
    white-space: nowrap;
}

.col-w-sm { width: 80px; }
.col-w-md { width: 150px; }
.col-w-lg { width: 250px; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.font-medium { font-weight: 500; }

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

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

.sidebar {
    width: 280px;
    background: rgba(15, 23, 42, 0.95);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    margin-bottom: 0.5rem;
    gap: 1rem;
}

.nav-link i {
    font-size: 1.25rem;
    opacity: 0.8;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.nav-link:hover i,
.nav-link.active i {
    opacity: 1;
}

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

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        bottom: 0;
        z-index: var(--z-sidebar);
        transition: left 0.3s ease;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .sidebar.active {
        left: 0;
    }

    .main-content {
        padding: 1rem;
        margin-top: 60px;
    }

    .mobile-header {
        display: flex !important;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--glass-nav);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--glass-border);
        padding: 0 1.5rem;
        align-items: center;
        justify-content: space-between;
        z-index: var(--z-header);
    }

    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        z-index: var(--z-overlay);
    }

    .sidebar-overlay.active {
        display: block;
    }
}

.mobile-header {
    display: none;
}

.menu-toggle {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 640px) {
    .glass-panel {
        padding: 1.5rem !important;
    }
    
    .main-content header h2 {
        font-size: 1.25rem;
    }
}

/* Simple-DataTables Overrides for Glassmorphism Theme */
.dataTable-wrapper {
    color: var(--text-main);
    font-family: var(--font-main);
}

.dataTable-top,
.dataTable-bottom {
    padding: 1rem 0;
}

.dataTable-input {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    padding: 0.5rem 1rem;
}

.dataTable-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.dataTable-selector {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    padding: 0.5rem;
}

.dataTable-pagination a {
    background: rgba(15, 23, 42, 0.6);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    margin: 0 2px;
    transition: var(--transition);
}

.dataTable-pagination a:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.dataTable-pagination .active a,
.dataTable-pagination .active a:focus,
.dataTable-pagination .active a:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.dataTable-table>tbody>tr>td,
.dataTable-table>tbody>tr>th,
.dataTable-table>tfoot>tr>td,
.dataTable-table>tfoot>tr>th,
.dataTable-table>thead>tr>td,
.dataTable-table>thead>tr>th {
    vertical-align: middle;
}

.dataTable-info {
    color: var(--text-muted);
}