/* Theme: Material v2 — Closer to Material Design 3 spec */
/* Roboto font, solid colors (no gradients), proper elevation, MD3 tokens */

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

:root {
    --sidebar-collapsed-width: 70px;

    /* ─── MD3 Color Tokens ─── */
    --md-primary: #1a73e8;
    --md-on-primary: #ffffff;
    --md-primary-container: #d3e3fd;
    --md-on-primary-container: #062e6f;
    --md-secondary: #535f70;
    --md-on-secondary: #ffffff;
    --md-secondary-container: #d7e3f7;
    --md-on-secondary-container: #101c2b;
    --md-surface: #f8f9fa;
    --md-on-surface: #1d1b20;
    --md-on-surface-variant: #49454f;
    --md-outline: #79747e;
    --md-outline-variant: #cac4d0;
    --md-error: #d32f2f;
    --md-on-error: #ffffff;
    --md-success: #2e7d32;
    --md-warning: #ed6c02;
    --md-info: #0288d1;

    /* ─── MD3 Elevation (box-shadow levels) ─── */
    --md-elevation-0: none;
    --md-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px 1px rgba(0,0,0,0.15);
    --md-elevation-2: 0 1px 2px rgba(0,0,0,0.3), 0 2px 6px 2px rgba(0,0,0,0.15);
    --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.3);
    --md-elevation-4: 0 6px 10px 4px rgba(0,0,0,0.15), 0 2px 3px rgba(0,0,0,0.3);
    --md-elevation-5: 0 8px 12px 6px rgba(0,0,0,0.15), 0 4px 4px rgba(0,0,0,0.3);

    /* ─── MD3 Shape (corner radius) ─── */
    --md-shape-none: 0;
    --md-shape-xs: 4px;
    --md-shape-sm: 8px;
    --md-shape-md: 12px;
    --md-shape-lg: 16px;
    --md-shape-xl: 28px;
    --md-shape-full: 9999px;

    /* ─── MD3 Motion ─── */
    --md-motion-duration-short: 150ms;
    --md-motion-duration-medium: 250ms;
    --md-motion-duration-long: 400ms;
    --md-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
    --md-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
    --md-motion-easing-decelerate: cubic-bezier(0, 0, 0, 1);
    --md-motion-easing-accelerate: cubic-bezier(0.3, 0, 1, 1);

    /* ─── Typography scale ─── */
    --md-typescale-body-large: 400 1rem/1.5 'Roboto', sans-serif;
    --md-typescale-body-medium: 400 0.875rem/1.43 'Roboto', sans-serif;
    --md-typescale-body-small: 400 0.75rem/1.33 'Roboto', sans-serif;
    --md-typescale-label-large: 500 0.875rem/1.43 'Roboto', sans-serif;
    --md-typescale-label-medium: 500 0.75rem/1.33 'Roboto', sans-serif;
    --md-typescale-label-small: 500 0.6875rem/1.45 'Roboto', sans-serif;
    --md-typescale-title-large: 400 1.375rem/1.27 'Roboto', sans-serif;
    --md-typescale-title-medium: 500 1rem/1.5 'Roboto', sans-serif;
    --md-typescale-title-small: 500 0.875rem/1.43 'Roboto', sans-serif;
    --md-typescale-headline-small: 400 1.5rem/1.33 'Roboto', sans-serif;

    /* Bootstrap overrides */
    --bs-body-font-family: 'Roboto', sans-serif;
    --primary: var(--md-primary);
}

/* ─── Base ─── */
body {
    font: var(--md-typescale-body-large);
    -webkit-font-smoothing: antialiased;
    background-color: var(--md-surface);
    color: var(--md-on-surface);
}

/* ─── Buttons ─── */
.btn {
    border-radius: var(--md-shape-full) !important;
    font: var(--md-typescale-label-large) !important;
    text-transform: none;
    letter-spacing: 0.01em;
    padding: 10px 24px !important;
    transition: box-shadow var(--md-motion-duration-short) var(--md-motion-easing-standard),
                background-color var(--md-motion-duration-short) var(--md-motion-easing-standard) !important;
}

.btn:hover {
    transform: none !important;
}

.btn-sm {
    padding: 6px 16px !important;
    font-size: 0.8125rem !important;
}

.btn-primary {
    background-color: var(--md-primary) !important;
    background-image: none !important;
    border: none !important;
    color: var(--md-on-primary) !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-primary:hover {
    background-color: var(--md-primary) !important;
    background-image: none !important;
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-primary:active {
    box-shadow: var(--md-elevation-0) !important;
    filter: brightness(0.92);
}

.btn-outline-primary {
    color: var(--md-primary) !important;
    border-color: var(--md-outline) !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover {
    background-color: var(--md-primary-container) !important;
    border-color: var(--md-primary) !important;
    color: var(--md-primary) !important;
}

/* Tonal button (secondary filled) */
.btn-secondary {
    background-color: var(--md-secondary-container) !important;
    background-image: none !important;
    color: var(--md-on-secondary-container) !important;
    border: none !important;
    box-shadow: var(--md-elevation-0) !important;
}

.btn-secondary:hover {
    box-shadow: var(--md-elevation-1) !important;
    filter: brightness(0.96);
}

.btn-success {
    background-color: var(--md-success) !important;
    background-image: none !important;
    border: none !important;
    color: #fff !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-success:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-danger {
    background-color: var(--md-error) !important;
    background-image: none !important;
    border: none !important;
    color: var(--md-on-error) !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-danger:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-warning {
    background-color: var(--md-warning) !important;
    background-image: none !important;
    border: none !important;
    color: #fff !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-warning:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-info {
    background-color: var(--md-info) !important;
    background-image: none !important;
    border: none !important;
    color: #fff !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-info:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

/* Action buttons */
.btn-view {
    background-color: var(--md-info) !important;
    background-image: none !important;
    border: none !important;
    color: #fff !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-view:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-edit {
    background-color: var(--md-primary) !important;
    background-image: none !important;
    border: none !important;
    color: var(--md-on-primary) !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-edit:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-delete {
    background-color: var(--md-error) !important;
    background-image: none !important;
    border: none !important;
    color: var(--md-on-error) !important;
    box-shadow: var(--md-elevation-1) !important;
}

.btn-delete:hover {
    box-shadow: var(--md-elevation-2) !important;
    filter: brightness(1.08);
}

.btn-outline-dark {
    color: var(--md-on-surface) !important;
    border-color: var(--md-outline) !important;
}

.btn-outline-dark:hover {
    background-color: var(--md-on-surface) !important;
    color: var(--md-surface) !important;
}

.btn-outline-secondary {
    color: var(--md-secondary) !important;
    border-color: var(--md-outline) !important;
}

.btn-outline-secondary:hover {
    background-color: var(--md-secondary-container) !important;
    color: var(--md-on-secondary-container) !important;
    border-color: var(--md-secondary) !important;
}

.btn-light {
    background-color: var(--md-surface) !important;
    border: 1px solid var(--md-outline-variant) !important;
    color: var(--md-on-surface) !important;
    box-shadow: none !important;
}

.btn-light:hover {
    background-color: var(--md-outline-variant) !important;
}

.btn-outline-light,
.card-header .btn-outline-light,
.card-header .btn.btn-outline-light {
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.7) !important;
    background-color: transparent !important;
    box-shadow: none !important;
}

.btn-outline-light:hover,
.card-header .btn-outline-light:hover,
.card-header .btn.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.12) !important;
    color: #fff !important;
    border-color: #fff !important;
    box-shadow: none !important;
    transform: none !important;
}

/* ─── Sidebar ─── */
.navbar {
    background-color: #1c1b1f !important;
    background-image: none !important;
}

.sidebar {
    background-color: #1c1b1f !important;
    background-image: none !important;
    border-radius: 0 var(--md-shape-lg) var(--md-shape-lg) 0;
    box-shadow: var(--md-elevation-2);
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    border-radius: var(--md-shape-full);
    margin: 1px 6px;
    padding: 4px 6px !important;
    transition: background-color var(--md-motion-duration-short) var(--md-motion-easing-standard);
    font: var(--md-typescale-label-large) !important;
}

.sidebar .nav-link:hover {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.08);
}

.sidebar .nav-link.active {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container) !important;
    box-shadow: none;
}

.sidebar .nav-link.active i {
    color: var(--md-on-primary-container) !important;
}

.sidebar .nav-link i {
    color: rgba(255, 255, 255, 0.8) !important;
}

.sidebar #toggleSidebar {
    color: #fff !important;
    border-color: rgba(255, 255, 255, 0.3) !important;
    background-color: rgba(255, 255, 255, 0.08) !important;
}

.sidebar #toggleSidebar i {
    color: #fff !important;
}

.sidebar-label {
    color: inherit !important;
}

/* Sidebar submenu */
.sidebar .collapse .nav-link,
.sidebar .collapsing .nav-link {
    font-size: 0.8125rem !important;
    padding: 8px 12px !important;
}

.sidebar .marginLeft-30 {
    margin-left: 20px !important;
}

/* ─── Cards ─── */
.card {
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-shape-md);
    box-shadow: var(--md-elevation-1);
    transition: box-shadow var(--md-motion-duration-medium) var(--md-motion-easing-standard);
}

.card:hover {
    box-shadow: var(--md-elevation-2);
}

.card-header {
    border-radius: var(--md-shape-md) var(--md-shape-md) 0 0 !important;
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 1rem 1.5rem;
    background-color: transparent;
}

.card-header-primary {
    background-color: var(--md-primary) !important;
    background-image: none !important;
    color: var(--md-on-primary) !important;
    box-shadow: none;
    border-bottom: none;
}

.card-header-secondary {
    background-color: transparent !important;
    color: var(--md-on-surface) !important;
    border-bottom: 1px solid var(--md-outline-variant) !important;
    box-shadow: none;
}

.card-header-info {
    background-color: var(--md-info) !important;
    background-image: none !important;
    color: #fff !important;
    box-shadow: none;
    border-bottom: none;
}

.card-header-success {
    background-color: var(--md-success) !important;
    background-image: none !important;
    color: #fff !important;
    box-shadow: none;
    border-bottom: none;
}

/* Card header without explicit color class = neutral */
.card-header:not([class*="card-header-"]):not([class*="bg-"]) {
    background-color: transparent !important;
    color: var(--md-on-surface);
}

/* Override bg-primary on card headers */
.card-header.bg-primary {
    background-color: var(--md-primary) !important;
    background-image: none !important;
    border: none;
}

.card-body {
    padding: 1rem 1.5rem;
}

/* ─── Tables ─── */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: transparent;
    border-top: none;
    border-bottom: 1px solid var(--md-outline-variant);
    font: var(--md-typescale-label-medium) !important;
    text-transform: none;
    letter-spacing: 0.02em;
    color: var(--md-on-surface-variant);
    padding: 0.75rem 1rem;
}

.table tbody td {
    border-bottom: 1px solid var(--md-outline-variant);
    border-top: none;
    padding: 0.75rem 1rem;
    font: var(--md-typescale-body-medium) !important;
    color: var(--md-on-surface);
}

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

.table-hover tbody tr:hover {
    background-color: rgba(26, 115, 232, 0.04);
}

.table-bordered {
    border: none !important;
}

.table-bordered td,
.table-bordered th {
    border: none !important;
    border-bottom: 1px solid var(--md-outline-variant) !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: transparent;
}

/* ─── List groups ─── */
.list-group-item {
    border: none;
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 1rem 0;
}

.list-group-item:last-child {
    border-bottom: none;
}

/* ─── Alerts ─── */
.alert {
    border-radius: var(--md-shape-md);
    border: none;
    font: var(--md-typescale-body-medium);
}

.alert-info {
    background-color: #e3f2fd;
    color: #01579b;
}

.alert-success {
    background-color: #e8f5e9;
    color: #1b5e20;
}

.alert-warning {
    background-color: #fff3e0;
    color: #bf360c;
}

.alert-danger {
    background-color: #fbe9e7;
    color: #b71c1c;
}

/* ─── Pagination ─── */
.page-link {
    border-radius: var(--md-shape-full) !important;
    margin: 0 2px;
    border: none;
    color: var(--md-on-surface-variant);
    font: var(--md-typescale-label-large);
}

.page-item.active .page-link {
    background-color: var(--md-primary);
    color: var(--md-on-primary);
    box-shadow: none;
}

/* ─── Breadcrumb ─── */
.breadcrumb {
    background: transparent;
    padding: 0;
    font: var(--md-typescale-body-medium);
}

/* ─── Forms ─── */
.form-control,
.form-select {
    border-radius: var(--md-shape-xs);
    border: 1px solid var(--md-outline);
    font: var(--md-typescale-body-large);
    padding: 12px 16px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--md-primary);
    border-width: 2px;
    box-shadow: none;
    padding: 11px 15px; /* compensate 2px border */
}

.input-group-text {
    border-radius: var(--md-shape-xs) 0 0 var(--md-shape-xs);
    border: 1px solid var(--md-outline);
    background-color: var(--md-surface);
}

.input-group .btn {
    border-radius: 0 var(--md-shape-xs) var(--md-shape-xs) 0 !important;
    padding: 10px 12px !important;
}

/* ─── Badges ─── */
.badge {
    border-radius: var(--md-shape-full);
    font: var(--md-typescale-label-small) !important;
    text-transform: none;
    padding: 4px 8px;
}

/* ─── Modal ─── */
.modal-content {
    border-radius: var(--md-shape-xl);
    border: none;
    box-shadow: var(--md-elevation-5);
}

/* ─── Dark mode ─── */
[data-bs-theme="dark"] body {
    --md-on-surface: #e6e1e5;
    --md-on-surface-variant: #cac4d0;
    --md-surface: #1c1b1f;
    background-color: #1c1b1f;
    color: #e6e1e5;
}

[data-bs-theme="dark"] .card {
    background-color: #2b2930;
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--md-elevation-1);
    color: #e6e1e5;
}

[data-bs-theme="dark"] .table tbody td {
    color: #cac4d0;
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-bs-theme="dark"] .table thead th {
    color: #938f99;
    border-bottom-color: rgba(255, 255, 255, 0.12);
}

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: #2b2930;
    border-color: rgba(255, 255, 255, 0.12);
    color: #e6e1e5;
}