/* Premium Design System */
:root {
    /* Colors */
    --primary-color: #4361ee;
    --primary-hover: #3a56d4;
    --secondary-color: #6c757d;
    --success-color: #2ec4b6;
    --danger-color: #ef476f;
    --warning-color: #ffd166;
    --info-color: #4cc9f0;

    /* Dark Mode / Glass Theme */
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing & Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-sans);
    background-color: #f1f5f9;
    /* Light mode bg for content area */
    color: #334155;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6,
.font-heading {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.025em;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-sidebar) !important;
    border-right: 1px solid var(--border-color);
}

.sidebar .nav-link {
    color: var(--text-secondary) !important;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    color: var(--text-primary) !important;
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar .nav-link.active {
    background-color: var(--primary-color) !important;
    color: white !important;
    box-shadow: var(--shadow-md);
}

.sidebar .nav-link i {
    opacity: 0.8;
}

/* Cards */
.card {
    background-color: white;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
}

/* Tables */
.table thead th {
    background-color: #f8fafc;
    color: #64748b;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f1f5f9;
}

/* Avatar */
.avatar-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 0.875rem;
}

/* Utilities */
.fs-7 {
    font-size: 0.75rem;
}

.bg-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
}

/* DataTables Overrides */
.dataTables_wrapper .dataTables_length select {
    padding-right: 2rem;
}

.dataTables_wrapper .dataTables_filter input {
    border-radius: var(--radius-md);
    border: 1px solid #e2e8f0;
    padding: 0.375rem 0.75rem;
}

.page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Login Page Specifics */
.login-body {
    background-color: var(--bg-dark);
    background-image: radial-gradient(circle at top right, #1e293b 0%, transparent 40%),
        radial-gradient(circle at bottom left, #4361ee 0%, transparent 40%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card-container {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
}

.login-input {
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
}

.login-input-with-toggle {
    padding-right: 3rem;
    position: relative;
    z-index: 1;
}

.login-input:focus {
    background-color: rgba(15, 23, 42, 0.8);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.3);
}

.login-label {
    color: var(--text-secondary);
    pointer-events: none;
}

.login-password-toggle {
    z-index: 10;
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.login-password-toggle:focus,
.login-password-toggle:active {
    box-shadow: none;
}