/**
 * KMLCMP LLC — Modern Design System
 * ===================================
 * Unified stylesheet for all Flask-rendered pages.
 * Light/professional theme with KMLCMP brand identity.
 *
 * Brand: Yellow #FFED00 · Black #0B0B0B · White #FFFFFF (FROM LOGO ONLY)
 * Fonts: Inter (body) · Bebas Neue (display headings)
 *
 * Provides Bootstrap-compatible grid, cards, tables, badges,
 * buttons, alerts, and utility classes so existing templates
 * render correctly without Bootstrap loaded.
 *
 * Created: February 2026
 */

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


/* ==========================================================================
   CSS VARIABLES — LIGHT THEME
   ========================================================================== */
:root {
    /* Brand */
    --brand-yellow: #FFED00; /* EXACT from logo.png */
    --brand-yellow-hover: #F0C800;
    --brand-yellow-light: #FFF8DC;
    --brand-yellow-10: rgba(255, 215, 0, 0.10);
    --brand-yellow-20: rgba(255, 215, 0, 0.20);
    --brand-black: #0B0B0B; /* EXACT from logo.png */
    --brand-black-soft: #2d2d2d;

    /* Surfaces */
    --surface-0: #FFFFFF;
    --surface-1: #F8F9FA;
    --surface-2: #F1F3F5;
    --surface-3: #E9ECEF;

    /* Text */
    --text-primary: #0B0B0B; /* EXACT from logo.png */
    --text-secondary: #495057;
    --text-tertiary: #868E96;
    --text-inverse: #FFFFFF;
    --text-muted: #868E96;

    /* Borders */
    --border-light: #E9ECEF;
    --border-default: #DEE2E6;
    --border-strong: #CED4DA;

    /* Status */
    --color-success: #10B981;
    --color-success-bg: rgba(16, 185, 129, 0.10);
    --color-warning: #F59E0B;
    --color-warning-bg: rgba(245, 158, 11, 0.10);
    --color-danger: #EF4444;
    --color-danger-bg: rgba(239, 68, 68, 0.10);
    --color-info: #3B82F6;
    --color-info-bg: rgba(59, 130, 246, 0.10);
    --color-primary: #0B0B0B; /* EXACT from logo.png */
    --color-primary-bg: rgba(26, 26, 26, 0.08);
    --color-secondary: #6C757D;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.06), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.08), 0 10px 10px rgba(0,0,0,0.04);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 60px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 150ms;
    --duration-normal: 200ms;
    --duration-slow: 300ms;
}


/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.9375rem; /* 15px */
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--surface-1);
}

img { max-width: 100%; height: auto; }

a {
    color: var(--brand-black);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
}

a:hover {
    color: var(--brand-black-soft);
}


/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6, .brand-heading {
    font-family: 'Bebas Neue', 'Inter', sans-serif;
    letter-spacing: 0.5px;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.2;
}

h1, .h1 { font-size: 2.5rem; }
h2, .h2 { font-size: 2rem; }
h3, .h3 { font-size: 1.5rem; }
h4, .h4 { font-size: 1.25rem; }
h5, .h5 { font-size: 1.1rem; }
h6, .h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-4);
    color: var(--text-secondary);
}

small, .small, .text-sm { font-size: 0.8125rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }

.text-muted { color: var(--text-tertiary) !important; }
.text-dark  { color: var(--text-primary) !important; }
.text-white { color: var(--text-inverse) !important; }
.text-center { text-align: center !important; }
.text-right  { text-align: right !important; }
.text-left   { text-align: left !important; }

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }


/* ==========================================================================
   BOOTSTRAP-COMPATIBLE GRID
   ========================================================================== */
.container-fluid {
    width: 100%;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: calc(var(--space-4) * -0.5);
    margin-right: calc(var(--space-4) * -0.5);
}

.row > [class*="col"] {
    padding-left: calc(var(--space-4) * 0.5);
    padding-right: calc(var(--space-4) * 0.5);
    width: 100%;
}

/* Column widths */
.col-1  { flex: 0 0 8.333%;  max-width: 8.333%; }
.col-2  { flex: 0 0 16.667%; max-width: 16.667%; }
.col-3  { flex: 0 0 25%;     max-width: 25%; }
.col-4  { flex: 0 0 33.333%; max-width: 33.333%; }
.col-5  { flex: 0 0 41.667%; max-width: 41.667%; }
.col-6  { flex: 0 0 50%;     max-width: 50%; }
.col-7  { flex: 0 0 58.333%; max-width: 58.333%; }
.col-8  { flex: 0 0 66.667%; max-width: 66.667%; }
.col-9  { flex: 0 0 75%;     max-width: 75%; }
.col-10 { flex: 0 0 83.333%; max-width: 83.333%; }
.col-11 { flex: 0 0 91.667%; max-width: 91.667%; }
.col-12 { flex: 0 0 100%;    max-width: 100%; }

/* Medium breakpoint (≥768px) */
@media (min-width: 768px) {
    .col-md-1  { flex: 0 0 8.333%;  max-width: 8.333%; }
    .col-md-2  { flex: 0 0 16.667%; max-width: 16.667%; }
    .col-md-3  { flex: 0 0 25%;     max-width: 25%; }
    .col-md-4  { flex: 0 0 33.333%; max-width: 33.333%; }
    .col-md-5  { flex: 0 0 41.667%; max-width: 41.667%; }
    .col-md-6  { flex: 0 0 50%;     max-width: 50%; }
    .col-md-7  { flex: 0 0 58.333%; max-width: 58.333%; }
    .col-md-8  { flex: 0 0 66.667%; max-width: 66.667%; }
    .col-md-9  { flex: 0 0 75%;     max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333%; max-width: 83.333%; }
    .col-md-11 { flex: 0 0 91.667%; max-width: 91.667%; }
    .col-md-12 { flex: 0 0 100%;    max-width: 100%; }
}

/* Large breakpoint (≥992px) */
@media (min-width: 992px) {
    .col-lg-1  { flex: 0 0 8.333%;  max-width: 8.333%; }
    .col-lg-2  { flex: 0 0 16.667%; max-width: 16.667%; }
    .col-lg-3  { flex: 0 0 25%;     max-width: 25%; }
    .col-lg-4  { flex: 0 0 33.333%; max-width: 33.333%; }
    .col-lg-5  { flex: 0 0 41.667%; max-width: 41.667%; }
    .col-lg-6  { flex: 0 0 50%;     max-width: 50%; }
    .col-lg-7  { flex: 0 0 58.333%; max-width: 58.333%; }
    .col-lg-8  { flex: 0 0 66.667%; max-width: 66.667%; }
    .col-lg-9  { flex: 0 0 75%;     max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333%; max-width: 83.333%; }
    .col-lg-11 { flex: 0 0 91.667%; max-width: 91.667%; }
    .col-lg-12 { flex: 0 0 100%;    max-width: 100%; }
}

/* XL breakpoint (≥1200px) */
@media (min-width: 1200px) {
    .col-xl-1  { flex: 0 0 8.333%;  max-width: 8.333%; }
    .col-xl-2  { flex: 0 0 16.667%; max-width: 16.667%; }
    .col-xl-3  { flex: 0 0 25%;     max-width: 25%; }
    .col-xl-4  { flex: 0 0 33.333%; max-width: 33.333%; }
    .col-xl-5  { flex: 0 0 41.667%; max-width: 41.667%; }
    .col-xl-6  { flex: 0 0 50%;     max-width: 50%; }
    .col-xl-7  { flex: 0 0 58.333%; max-width: 58.333%; }
    .col-xl-8  { flex: 0 0 66.667%; max-width: 66.667%; }
    .col-xl-9  { flex: 0 0 75%;     max-width: 75%; }
    .col-xl-10 { flex: 0 0 83.333%; max-width: 83.333%; }
    .col-xl-11 { flex: 0 0 91.667%; max-width: 91.667%; }
    .col-xl-12 { flex: 0 0 100%;    max-width: 100%; }
}


/* ==========================================================================
   CARDS
   ========================================================================== */
.card {
    background: var(--surface-0);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--duration-normal) var(--ease-out),
                transform var(--duration-normal) var(--ease-out);
    overflow: hidden;
}

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

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-light);
    background: var(--surface-1);
    font-weight: 600;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-5) var(--space-6);
    border-top: 1px solid var(--border-light);
    background: var(--surface-1);
}

.card-title {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

/* Colored stat cards */
.card.bg-primary {
    background: var(--brand-black);
    border-color: var(--brand-black);
    color: var(--text-inverse);
}

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

.card.bg-warning {
    background: var(--color-warning);
    border-color: var(--color-warning);
}

.card.bg-info {
    background: var(--color-info);
    border-color: var(--color-info);
    color: var(--text-inverse);
}

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

.card.bg-dark {
    background: var(--brand-black);
    border-color: var(--brand-black);
    color: var(--text-inverse);
}

.card.bg-primary .card-title,
.card.bg-success .card-title,
.card.bg-info .card-title,
.card.bg-danger .card-title,
.card.bg-dark .card-title {
    color: rgba(255,255,255,0.85);
}

.card.bg-primary h2,
.card.bg-success h2,
.card.bg-info h2,
.card.bg-danger h2,
.card.bg-dark h2 {
    color: #FFFFFF;
    font-family: 'Inter', sans-serif;
}

.card.bg-primary small,
.card.bg-success small,
.card.bg-info small,
.card.bg-danger small,
.card.bg-dark small {
    color: rgba(255,255,255,0.7);
}

.card.bg-dark .card-header {
    background: rgba(0,0,0,0.2);
    border-bottom-color: rgba(255,255,255,0.1);
}

.card.bg-dark .card-header h5 {
    color: #FFFFFF;
}


/* ==========================================================================
   TABLES
   ========================================================================== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    padding: var(--space-3) var(--space-4);
    border-bottom: 2px solid var(--border-default);
    text-align: left;
    white-space: nowrap;
}

.table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: middle;
}

.table-hover tbody tr {
    transition: background var(--duration-fast) ease;
}

.table-hover tbody tr:hover {
    background: var(--brand-yellow-10);
}

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


/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
    line-height: 1.5;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background: var(--brand-black-soft);
    box-shadow: var(--shadow-md);
    color: var(--brand-yellow);
}

.btn-secondary {
    background: var(--surface-0);
    color: var(--text-primary);
    border-color: var(--border-default);
}

.btn-secondary:hover {
    background: var(--surface-1);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-sm);
}

.btn-success {
    background: var(--color-success);
    color: var(--text-inverse);
    border-color: var(--color-success);
}

.btn-success:hover {
    background: #0EA472;
    box-shadow: var(--shadow-md);
    color: var(--text-inverse);
}

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

.btn-info {
    background: var(--color-info);
    color: var(--text-inverse);
    border-color: var(--color-info);
}

.btn-info:hover {
    background: #2563EB;
    box-shadow: var(--shadow-md);
    color: var(--text-inverse);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--text-inverse);
    border-color: var(--color-danger);
}

.btn-danger:hover {
    background: #DC2626;
    box-shadow: var(--shadow-md);
    color: var(--text-inverse);
}

.btn-outline-primary {
    background: transparent;
    color: var(--brand-black);
    border-color: var(--brand-black);
}

.btn-outline-primary:hover {
    background: var(--brand-black);
    color: var(--brand-yellow);
}

.btn-sm {
    font-size: 0.8125rem;
    padding: var(--space-1) var(--space-3);
}

.btn-lg {
    font-size: 1rem;
    padding: var(--space-3) var(--space-8);
}

.btn-block {
    width: 100%;
}


/* ==========================================================================
   BADGES
   ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.badge.bg-primary, .badge-primary {
    background: var(--color-primary-bg);
    color: var(--brand-black);
}

.badge.bg-success, .badge-success {
    background: var(--color-success-bg);
    color: #059669;
}

.badge.bg-warning, .badge-warning {
    background: var(--color-warning-bg);
    color: #D97706;
}

.badge.bg-danger, .badge-danger {
    background: var(--color-danger-bg);
    color: #DC2626;
}

.badge.bg-info, .badge-info {
    background: var(--color-info-bg);
    color: #2563EB;
}

.badge.bg-secondary, .badge-secondary {
    background: var(--surface-2);
    color: var(--text-secondary);
}

.badge.bg-light {
    background: var(--surface-2);
    color: var(--text-secondary);
}


/* ==========================================================================
   ALERTS
   ========================================================================== */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    border-left: 4px solid transparent;
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
    line-height: 1.5;
}

.alert strong {
    font-weight: 600;
}

.alert p {
    margin-bottom: var(--space-1);
    color: inherit;
}

.alert-primary {
    background: var(--color-primary-bg);
    border-left-color: var(--brand-black);
    color: var(--text-primary);
}

.alert-success {
    background: var(--color-success-bg);
    border-left-color: var(--color-success);
    color: #065F46;
}

.alert-warning {
    background: var(--color-warning-bg);
    border-left-color: var(--color-warning);
    color: #92400E;
}

.alert-danger {
    background: var(--color-danger-bg);
    border-left-color: var(--color-danger);
    color: #991B1B;
}

.alert-info {
    background: var(--color-info-bg);
    border-left-color: var(--color-info);
    color: #1E40AF;
}

.alert-secondary {
    background: var(--surface-2);
    border-left-color: var(--color-secondary);
    color: var(--text-secondary);
}

.alert-light {
    background: var(--surface-1);
    border-left-color: var(--border-default);
    color: var(--text-secondary);
}


/* ==========================================================================
   PROGRESS BARS
   ========================================================================== */
.progress {
    height: 8px;
    background: var(--surface-2);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--brand-yellow);
    border-radius: var(--radius-full);
    transition: width var(--duration-slow) var(--ease-out);
}


/* ==========================================================================
   FORMS
   ========================================================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label, .form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="search"],
input[type="url"],
input[type="date"],
input[type="datetime-local"],
select,
textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--surface-0);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) ease,
                box-shadow var(--duration-fast) ease;
    outline: none;
}

.form-control:focus,
input:focus,
select:focus,
textarea:focus {
    border-color: var(--brand-yellow);
    box-shadow: 0 0 0 3px var(--brand-yellow-20);
}

.form-control::placeholder,
input::placeholder {
    color: var(--text-tertiary);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}


/* ==========================================================================
   ADMIN LAYOUT — SIDEBAR + MAIN
   ========================================================================== */

/* Sidebar — Light theme */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface-0);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 200;
    transition: transform var(--duration-slow) var(--ease-out);
}

.sidebar-header {
    padding: var(--space-6) var(--space-5);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-header img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
}

.sidebar-header h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.25rem;
    letter-spacing: 1.5px;
    color: var(--brand-black);
    margin: 0;
    line-height: 1;
}

.sidebar-header p {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin: 0;
}

/* Navigation menu */
.nav-menu {
    flex: 1;
    padding: var(--space-4) 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-5);
}

.nav-section-title {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    padding: 0 var(--space-5) var(--space-2);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-5);
    margin: 1px var(--space-2);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border-left: 3px solid transparent;
    transition: all var(--duration-fast) ease;
}

.nav-link:hover {
    background: var(--surface-1);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--brand-yellow-10);
    color: var(--brand-black);
    border-left-color: var(--brand-yellow);
    font-weight: 600;
}

.nav-link i {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    font-style: normal;
}

.nav-link .badge {
    margin-left: auto;
    background: var(--color-danger);
    color: var(--text-inverse);
    font-size: 0.6875rem;
    padding: 2px 7px;
}

/* Sidebar footer */
.sidebar-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-light);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--brand-yellow);
    color: var(--brand-black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8125rem;
}

.user-details { flex: 1; }

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.logout-btn {
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    background: none;
    border: 1px solid var(--border-default);
    color: var(--text-tertiary);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

.logout-btn:hover {
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* Main content area */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top bar */
.top-bar {
    background: var(--surface-0);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-3) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: var(--topbar-height);
    position: sticky;
    top: 0;
    z-index: 100;
}

.page-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin: 0;
}

.top-bar-actions {
    display: flex;
    gap: var(--space-2);
}

/* Content area */
.content-area {
    flex: 1;
    padding: var(--space-6);
    overflow-y: auto;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-5);
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--duration-fast) ease;
}

.breadcrumb a:hover {
    color: var(--brand-black);
}

/* Mobile hamburger */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-1);
}


/* ==========================================================================
   SPACING UTILITIES
   ========================================================================== */
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-4) !important; }
.mb-4 { margin-bottom: var(--space-6) !important; }
.mb-5 { margin-bottom: var(--space-10) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-4) !important; }
.mt-4 { margin-top: var(--space-6) !important; }
.mt-5 { margin-top: var(--space-10) !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-4) !important; }
.p-4 { padding: var(--space-6) !important; }
.p-5 { padding: var(--space-10) !important; }

.py-2 { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3 { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.px-3 { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }
.px-4 { padding-left: var(--space-6) !important; padding-right: var(--space-6) !important; }


/* ==========================================================================
   DISPLAY & FLEX UTILITIES
   ========================================================================== */
.d-none    { display: none !important; }
.d-block   { display: block !important; }
.d-flex    { display: flex !important; }
.d-grid    { display: grid !important; }
.d-inline  { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-inline-flex  { display: inline-flex !important; }

.flex-row    { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap   { flex-wrap: wrap !important; }
.flex-1      { flex: 1 !important; }

.align-items-center   { align-items: center !important; }
.align-items-start    { align-items: flex-start !important; }
.align-items-end      { align-items: flex-end !important; }
.justify-content-center  { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-end     { justify-content: flex-end !important; }

.gap-1 { gap: var(--space-1) !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-4) !important; }
.gap-4 { gap: var(--space-6) !important; }

.w-100 { width: 100% !important; }
.border { border: 1px solid var(--border-default) !important; }
.rounded { border-radius: var(--radius-md) !important; }


/* ==========================================================================
   RESPONSIVE — MOBILE
   ========================================================================== */
@media (max-width: 767px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: block !important;
    }

    .content-area {
        padding: var(--space-4);
    }

    .row > [class*="col-md"],
    .row > [class*="col-lg"] {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .d-md-none { display: none !important; }

    /* Tables scroll horizontally on mobile */
    .card-body { overflow-x: auto; }
    table { min-width: 600px; }

    /* Card grids stack on mobile */
    .card-grid {
        grid-template-columns: 1fr !important;
    }

    /* Top bar compact */
    .top-bar {
        flex-wrap: wrap;
        gap: 8px;
    }
    .top-bar-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

@media (min-width: 768px) {
    .d-md-block { display: block !important; }
    .d-md-flex  { display: flex !important; }
}


/* ==========================================================================
   OVERLAY for mobile sidebar
   ========================================================================== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 199;
    backdrop-filter: blur(2px);
}

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


/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { transform: translateX(-20px); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

.animate-fadeIn {
    animation: fadeIn var(--duration-slow) var(--ease-out) both;
}

.content-area > * {
    animation: fadeIn var(--duration-slow) var(--ease-out) both;
}


/* ==========================================================================
   PRINT
   ========================================================================== */
@media print {
    .sidebar,
    .top-bar,
    .mobile-menu-btn,
    .logout-btn {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}


/* ==========================================================================
   MISC LEGACY COMPAT
   ========================================================================== */
.text-white { color: #FFFFFF !important; }
.bg-dark    { background-color: var(--brand-black) !important; }
.bg-light   { background-color: var(--surface-1) !important; }
.border-0   { border: 0 !important; }
.shadow-sm  { box-shadow: var(--shadow-sm) !important; }
.shadow     { box-shadow: var(--shadow-md) !important; }
.overflow-hidden { overflow: hidden !important; }

ol, ul {
    padding-left: var(--space-6);
    margin-bottom: var(--space-4);
}

ol li, ul li {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}