/* Premium Glassmorphism & Modern CSS Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Theme Colors - DARK MODE (Default) */
    --bg-main: #090b11;
    --bg-sidebar: #0f121e;
    --bg-card: rgba(18, 22, 37, 0.7);
    --bg-card-hover: rgba(26, 32, 53, 0.8);
    
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    --primary: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.25);
    
    --secondary: #d946ef; /* Magenta */
    --secondary-glow: rgba(217, 70, 239, 0.2);

    --success: #10b981; /* Emerald */
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #ef4444; /* Rose */
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b; /* Amber */
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3b82f6; /* Blue */
    --info-bg: rgba(59, 130, 246, 0.1);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.7);

    /* Contextual variables for theme toggling */
    --bg-nav-hover: rgba(255, 255, 255, 0.03);
    --logo-text-gradient: linear-gradient(to right, #ffffff, #a5b4fc);
    --table-row-hover: rgba(255, 255, 255, 0.015);
    --input-bg: rgba(255, 255, 255, 0.03);
    --stat-icon-bg: rgba(255, 255, 255, 0.03);
    --alert-success-text: #a7f3d0;
    --alert-success-border: rgba(16, 185, 129, 0.2);
    --alert-danger-text: #fecaca;
    --alert-danger-border: rgba(239, 68, 68, 0.2);
}

/* Theme Colors - LIGHT MODE Overrides */
[data-theme="light"] {
    --bg-main: #f8fafc;
    --bg-sidebar: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(15, 23, 42, 0.15);

    --primary: #4f46e5; /* Deeper Indigo for light bg */
    --primary-hover: #3730a3;
    --primary-glow: rgba(79, 70, 229, 0.15);
    
    --secondary: #d946ef;
    --secondary-glow: rgba(217, 70, 239, 0.1);

    --success: #059669;
    --success-bg: rgba(5, 150, 105, 0.1);
    --danger: #dc2626;
    --danger-bg: rgba(220, 38, 38, 0.1);
    --warning: #d97706;
    --warning-bg: rgba(217, 119, 6, 0.1);
    --info: #2563eb;
    --info-bg: rgba(37, 99, 235, 0.1);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.08);

    /* Contextual variables for theme toggling */
    --bg-nav-hover: rgba(15, 23, 42, 0.04);
    --logo-text-gradient: linear-gradient(to right, #0f172a, #4338ca);
    --table-row-hover: rgba(15, 23, 42, 0.015);
    --input-bg: rgba(15, 23, 42, 0.02);
    --stat-icon-bg: rgba(15, 23, 42, 0.02);
    --alert-success-text: #065f46;
    --alert-success-border: rgba(5, 150, 105, 0.2);
    --alert-danger-text: #991b1b;
    --alert-danger-border: rgba(220, 38, 38, 0.2);
}

/* Reset and Globals */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2.5rem;
    min-height: 100vh;
    background: radial-gradient(circle at 70% 10%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
                radial-gradient(circle at 10% 80%, rgba(217, 70, 239, 0.05) 0%, transparent 50%),
                var(--bg-main);
}

/* Sidebar Logo */
.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    background: var(--logo-text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Sidebar Nav */
.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    color: var(--text-secondary);
    border-radius: 12px;
    transition: var(--transition-normal);
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    background-color: var(--bg-nav-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15) 0%, transparent 100%);
    border-left: 3px solid var(--primary);
    padding-left: calc(1rem - 3px);
}

.nav-link svg {
    width: 20px;
    height: 20px;
    transition: var(--transition-fast);
}

.nav-link:hover svg, .nav-link.active svg {
    color: var(--primary);
    transform: scale(1.05);
}

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
}

.page-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

/* Cards & Glassmorphism */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-lg);
}

/* Grid System */
.grid-cols-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 1200px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }
    .grid-cols-4, .grid-cols-3, .grid-cols-2 {
        grid-template-columns: 1fr;
    }
}

/* Stat Widget */
.stat-widget {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background-color: var(--stat-icon-bg);
    border: 1px solid var(--border-color);
}

.stat-icon.primary { color: var(--primary); background-color: var(--primary-glow); }
.stat-icon.success { color: var(--success); background-color: var(--success-bg); }
.stat-icon.danger { color: var(--danger); background-color: var(--danger-bg); }
.stat-icon.warning { color: var(--warning); background-color: var(--warning-bg); }
.stat-icon.info { color: var(--info); background-color: var(--info-bg); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-top: 0.1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: 0.95rem;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
    filter: brightness(1.1);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 4px 12px var(--danger-bg);
}

.btn-danger:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    border-radius: 8px;
}

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

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

.form-control {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-normal);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    background-color: var(--bg-card);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin-top: 1.5rem;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.custom-table th {
    padding: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.custom-table td {
    padding: 1.15rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

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

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

.custom-table tbody tr:hover {
    background-color: var(--table-row-hover);
}

/* Badges / Status Pills */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-success { color: var(--success); background-color: var(--success-bg); }
.badge-danger { color: var(--danger); background-color: var(--danger-bg); }
.badge-warning { color: var(--warning); background-color: var(--warning-bg); }
.badge-info { color: var(--info); background-color: var(--info-bg); }

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    border: 1px solid transparent;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: var(--success-bg);
    border-color: var(--alert-success-border);
    color: var(--alert-success-text);
}

.alert-danger {
    background-color: var(--danger-bg);
    border-color: var(--alert-danger-border);
    color: var(--alert-danger-text);
}

/* Dropdowns / Pagination */
.pagination {
    display: flex;
    justify-content: flex-end;
    gap: 0.25rem;
    margin-top: 1.5rem;
    list-style: none;
}

.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.02);
    transition: var(--transition-fast);
    font-size: 0.9rem;
}

.pagination li.active span {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 600;
}

.pagination li a:hover {
    border-color: var(--border-hover);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Modal / Cards header */
.card-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.placeholder-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

/* Chart SVG Styles */
.chart-container {
    height: 250px;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding-top: 20px;
}

.chart-bar-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    height: 100%;
    justify-content: flex-end;
}

.chart-bar {
    width: 60%;
    max-width: 45px;
    background: linear-gradient(to top, var(--primary), var(--secondary));
    border-radius: 6px 6px 0 0;
    transition: height 1s ease;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.chart-bar-label {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.chart-bar-value {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}