/* ============================================
   Material Design 3 Theme — ISP CRM
   ============================================ */

/* MD3 Color Tokens (light) */
:root {
    --md-sys-color-primary: #006D40;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #95F7B5;
    --md-sys-color-on-primary-container: #002110;
    --md-sys-color-secondary: #4E6353;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #D1E8D5;
    --md-sys-color-on-secondary-container: #0C1F13;
    --md-sys-color-tertiary: #3D6473;
    --md-sys-color-on-tertiary: #FFFFFF;
    --md-sys-color-tertiary-container: #C1E8FB;
    --md-sys-color-on-tertiary-container: #001F29;
    --md-sys-color-error: #BA1A1A;
    --md-sys-color-on-error: #FFFFFF;
    --md-sys-color-error-container: #FFDAD6;
    --md-sys-color-on-error-container: #410002;
    --md-sys-color-background: #FBFDF8;
    --md-sys-color-on-background: #191C1A;
    --md-sys-color-surface: #FBFDF8;
    --md-sys-color-on-surface: #191C1A;
    --md-sys-color-surface-variant: #DCE5DA;
    --md-sys-color-on-surface-variant: #414941;
    --md-sys-color-outline: #717971;
    --md-sys-color-outline-variant: #C1C9BE;
    --md-sys-color-shadow: #000000;
    --md-sys-color-inverse-surface: #2E312F;
    --md-sys-color-inverse-on-surface: #F0F1EC;
    --md-sys-color-inverse-primary: #79DA9B;
    --md-sys-color-scrim: #000000;

    /* MD3 Elevation */
    --md-sys-elevation-0: none;
    --md-sys-elevation-1: 0 1px 3px 1px rgba(0,0,0,0.15), 0 1px 2px 0 rgba(0,0,0,0.30);
    --md-sys-elevation-2: 0 2px 6px 2px rgba(0,0,0,0.15), 0 1px 2px 0 rgba(0,0,0,0.30);
    --md-sys-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.15), 0 1px 3px 0 rgba(0,0,0,0.30);
    --md-sys-elevation-4: 0 6px 10px 4px rgba(0,0,0,0.15), 0 2px 3px 0 rgba(0,0,0,0.30);
    --md-sys-elevation-5: 0 8px 12px 6px rgba(0,0,0,0.15), 0 4px 4px 0 rgba(0,0,0,0.30);

    /* MD3 Shape */
    --md-sys-shape-corner-none: 0;
    --md-sys-shape-corner-extra-small: 4px;
    --md-sys-shape-corner-small: 8px;
    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;
    --md-sys-shape-corner-extra-large: 28px;
    --md-sys-shape-corner-full: 9999px;

    /* Layout */
    --sidebar-width: 300px;
    --top-app-bar-height: 64px;
    --transition-speed-md: 200ms;
}

/* Dark theme */
[data-bs-theme="dark"] {
    --md-sys-color-primary: #79DA9B;
    --md-sys-color-on-primary: #003919;
    --md-sys-color-primary-container: #00522A;
    --md-sys-color-on-primary-container: #95F7B5;
    --md-sys-color-secondary: #B6CCBA;
    --md-sys-color-on-secondary: #213528;
    --md-sys-color-secondary-container: #374B3D;
    --md-sys-color-on-secondary-container: #D1E8D5;
    --md-sys-color-tertiary: #A6CCDE;
    --md-sys-color-on-tertiary: #073543;
    --md-sys-color-tertiary-container: #254C5A;
    --md-sys-color-on-tertiary-container: #C1E8FB;
    --md-sys-color-error: #FFB4AB;
    --md-sys-color-on-error: #690005;
    --md-sys-color-error-container: #93000A;
    --md-sys-color-on-error-container: #FFDAD6;
    --md-sys-color-background: #191C1A;
    --md-sys-color-on-background: #E1E3DE;
    --md-sys-color-surface: #191C1A;
    --md-sys-color-on-surface: #E1E3DE;
    --md-sys-color-surface-variant: #414941;
    --md-sys-color-on-surface-variant: #C1C9BE;
    --md-sys-color-outline: #8B938B;
    --md-sys-color-outline-variant: #414941;
    --md-sys-color-inverse-surface: #E1E3DE;
    --md-sys-color-inverse-on-surface: #191C1A;
    --md-sys-color-inverse-primary: #006D40;
    --bs-body-bg: var(--md-sys-color-background);
    --bs-body-color: var(--md-sys-color-on-background);
    --bs-card-bg: #242824;
    --bs-border-color: var(--md-sys-color-outline-variant);
}

* {
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Navigation Drawer (MD3 Sidebar)
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--md-sys-color-surface);
    box-shadow: var(--md-sys-elevation-1);
    z-index: 1050;
    transition: transform var(--transition-speed-md) cubic-bezier(0.2, 0, 0, 1);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--md-sys-color-outline-variant);
}

.sidebar.closed {
    transform: translateX(calc(var(--sidebar-width) * -1));
}

.sidebar-logo {
    height: var(--top-app-bar-height);
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
}

.sidebar-logo i {
    font-size: 28px;
    color: var(--md-sys-color-primary);
}

.sidebar-logo-img {
    height: 32px;
    width: auto;
    border-radius: 4px;
}

.sidebar-logo .logo-text {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.25px;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
}

.sidebar-nav {
    padding: 12px 0;
    flex: 1;
    list-style: none;
}

.sidebar-nav .nav-section-title {
    padding: 16px 24px 8px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--md-sys-color-on-surface-variant);
}

.sidebar-nav .nav-item {
    list-style: none;
    padding: 0 12px;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
    border-radius: var(--md-sys-shape-corner-extra-large);
    transition: all var(--transition-speed-md) ease;
    font-size: 14px;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.sidebar-nav .nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-sys-color-primary);
    opacity: 0;
    transition: opacity var(--transition-speed-md) ease;
}

.sidebar-nav .nav-link:hover::before {
    opacity: 0.08;
}

.sidebar-nav .nav-link.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.sidebar-nav .nav-link i {
    font-size: 22px;
    width: 24px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.sidebar-nav .nav-link span {
    position: relative;
    z-index: 1;
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1049;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed-md) ease;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ============================================
   Top App Bar (MD3)
   ============================================ */
.top-app-bar {
    position: sticky;
    top: 0;
    z-index: 1030;
    height: var(--top-app-bar-height);
    background: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    align-items: center;
    padding: 0 16px 0 4px;
    gap: 8px;
}

.top-app-bar .menu-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface);
    border-radius: var(--md-sys-shape-corner-full);
    cursor: pointer;
    transition: background var(--transition-speed-md) ease;
}

.top-app-bar .menu-icon:hover {
    background: rgba(0,0,0,0.08);
}

.top-app-bar .menu-icon i {
    font-size: 24px;
}

.top-app-bar .page-title {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.25px;
    color: var(--md-sys-color-on-surface);
    flex: 1;
    margin: 0;
}

.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-speed-md) cubic-bezier(0.2, 0, 0, 1);
}

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

/* ============================================
   Material Cards
   ============================================ */
.card {
    background: var(--md-sys-color-surface);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-sys-shape-corner-medium);
    box-shadow: var(--md-sys-elevation-1);
    transition: box-shadow var(--transition-speed-md) ease;
}

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

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    padding: 16px 20px;
    font-weight: 500;
    font-size: 16px;
}

.card-body {
    padding: 20px;
}

.stat-card {
    border-radius: var(--md-sys-shape-corner-medium);
    border-left: none;
    position: relative;
    overflow: hidden;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--md-sys-shape-corner-small);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--md-sys-color-on-primary);
    background: var(--md-sys-color-primary);
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.5px;
    color: var(--md-sys-color-on-surface);
}

.stat-card .stat-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   MD3 Buttons
   ============================================ */
.btn {
    border-radius: var(--md-sys-shape-corner-full);
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.1px;
    padding: 8px 24px;
    transition: all var(--transition-speed-md) ease;
    text-transform: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: var(--md-sys-elevation-2);
}

.btn-primary:hover {
    background: color-mix(in srgb, var(--md-sys-color-primary) 90%, black);
    border-color: transparent;
    box-shadow: var(--md-sys-elevation-3);
}

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

.btn-secondary:hover {
    background: rgba(0, 109, 64, 0.08);
    border-color: var(--md-sys-color-primary);
}

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

.btn-danger {
    background: var(--md-sys-color-error);
    border-color: var(--md-sys-color-error);
}

.btn-warning {
    background: #EFB034;
    border-color: #EFB034;
    color: #1D1B16;
}

.btn-outline-secondary {
    border-color: var(--md-sys-color-outline);
    color: var(--md-sys-color-on-surface);
}

.btn-outline-secondary:hover {
    background: rgba(0,0,0,0.08);
    border-color: var(--md-sys-color-outline);
}

.btn-outline-danger {
    border-color: var(--md-sys-color-error);
    color: var(--md-sys-color-error);
}

.btn-outline-danger:hover {
    background: var(--md-sys-color-error-container);
    border-color: var(--md-sys-color-error);
}

.btn-outline-warning {
    border-color: #EFB034;
    color: #EFB034;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 13px;
}

.btn-group-sm > .btn {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-radius: var(--md-sys-shape-corner-full) 0 0 var(--md-sys-shape-corner-full);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--md-sys-shape-corner-full) var(--md-sys-shape-corner-full) 0;
}

/* ============================================
   MD3 Tables
   ============================================ */
.table {
    color: var(--md-sys-color-on-surface);
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    padding: 14px 16px;
    border-bottom-color: var(--md-sys-color-outline-variant);
}

.table > thead {
    background: var(--md-sys-color-surface-variant);
    border-bottom: none;
}

.table > thead th {
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--md-sys-color-on-surface-variant);
}

.table-hover > tbody > tr:hover {
    background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

/* ============================================
   MD3 Forms
   ============================================ */
.form-control, .form-select {
    border-radius: var(--md-sys-shape-corner-extra-small);
    border: 1px solid var(--md-sys-color-outline);
    padding: 10px 16px;
    font-size: 16px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    transition: all var(--transition-speed-md) ease;
    height: auto;
}

.form-control:focus, .form-select:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 20%, transparent);
}

.form-control-sm {
    padding: 6px 12px;
    font-size: 14px;
}

.form-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.form-text {
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
}

.input-group > .form-control {
    border-radius: var(--md-sys-shape-corner-extra-small);
}

.input-group > .btn {
    border-radius: var(--md-sys-shape-corner-extra-small);
}

/* ============================================
   MD3 Modals
   ============================================ */
.modal-content {
    border: none;
    border-radius: var(--md-sys-shape-corner-extra-large);
    box-shadow: var(--md-sys-elevation-3);
    background: var(--md-sys-color-surface);
}

.modal-header {
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    padding: 24px 24px 16px;
}

.modal-header .modal-title {
    font-size: 24px;
    font-weight: 500;
    letter-spacing: -0.25px;
}

.modal-body {
    padding: 16px 24px;
}

.modal-footer {
    border-top: 1px solid var(--md-sys-color-outline-variant);
    padding: 16px 24px 24px;
    gap: 8px;
}

/* ============================================
   MD3 Badges & Chips
   ============================================ */
.badge {
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: var(--md-sys-shape-corner-small);
    text-transform: uppercase;
}

.bg-primary {
    background: var(--md-sys-color-primary) !important;
}

.bg-danger {
    background: var(--md-sys-color-error) !important;
}

.bg-success {
    background: var(--md-sys-color-primary) !important;
}

.bg-warning {
    background: #EFB034 !important;
}

.bg-info {
    background: var(--md-sys-color-tertiary-container) !important;
    color: var(--md-sys-color-on-tertiary-container) !important;
}

.bg-dark {
    background: var(--md-sys-color-inverse-surface) !important;
    color: var(--md-sys-color-inverse-on-surface) !important;
}

/* ============================================
   Kanban Board (MD3)
   ============================================ */
.kanban-board {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 16px 0;
    min-height: calc(100vh - 150px);
    scroll-snap-type: x mandatory;
}

.kanban-column {
    min-width: 300px;
    max-width: 300px;
    flex-shrink: 0;
    background: var(--md-sys-color-surface-variant);
    border-radius: var(--md-sys-shape-corner-large);
    border: none;
    scroll-snap-align: start;
}

.kanban-column-header {
    padding: 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.25px;
}

.kanban-column-body {
    padding: 8px;
    min-height: 200px;
    max-height: calc(100vh - 250px);
    overflow-y: auto;
}

.kanban-card {
    background: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-medium);
    padding: 16px;
    margin-bottom: 8px;
    cursor: pointer;
    box-shadow: var(--md-sys-elevation-1);
    transition: all var(--transition-speed-md) ease;
}

.kanban-card:hover {
    box-shadow: var(--md-sys-elevation-2);
    transform: translateY(-2px);
}

.kanban-card.dragging {
    opacity: 0.5;
    transform: rotate(3deg) scale(0.95);
    box-shadow: var(--md-sys-elevation-4);
}

.kanban-card .card-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.kanban-card .card-subtitle {
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
}

.kanban-card .card-value {
    font-weight: 600;
    color: var(--md-sys-color-primary);
    font-size: 16px;
}

.drag-over {
    background: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent);
    box-shadow: inset 0 0 0 2px var(--md-sys-color-primary);
    border-radius: var(--md-sys-shape-corner-medium);
}

/* ============================================
   Alerts (MD3 Snackbar style)
   ============================================ */
.alert {
    border: none;
    border-radius: var(--md-sys-shape-corner-medium);
    padding: 16px 20px;
    font-size: 14px;
    box-shadow: var(--md-sys-elevation-3);
}

.alert-success {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.alert-danger {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.alert-warning {
    background: #FDF0D6;
    color: #1D1B16;
}

.alert-info {
    background: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
}

/* ============================================
   Timeline (MD3)
   ============================================ */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--md-sys-color-outline-variant);
}

.timeline-item {
    position: relative;
    padding-bottom: 24px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -25px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: var(--md-sys-shape-corner-full);
    background: var(--md-sys-color-primary);
    border: 2px solid var(--md-sys-color-surface);
}

/* ============================================
   Search
   ============================================ */
.search-box {
    position: relative;
}

.search-box input {
    padding-left: 44px;
    border-radius: var(--md-sys-shape-corner-full);
    background: var(--md-sys-color-surface-variant);
    border: none;
    height: 40px;
}

.search-box input:focus {
    background: var(--md-sys-color-surface);
    border: 1px solid var(--md-sys-color-outline);
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--md-sys-color-on-surface-variant);
    font-size: 20px;
}

/* ============================================
   Avatar
   ============================================ */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--md-sys-shape-corner-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: 16px;
    color: white;
    flex-shrink: 0;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 13px;
}

.avatar-lg {
    width: 64px;
    height: 64px;
    font-size: 24px;
}

/* ============================================
   Notifications
   ============================================ */
.notification-dropdown {
    width: 360px;
    max-height: 400px;
    overflow-y: auto;
    border: none;
    border-radius: var(--md-sys-shape-corner-large);
    box-shadow: var(--md-sys-elevation-3);
}

.notification-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    transition: background var(--transition-speed-md) ease;
}

.notification-item:hover {
    background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

.notification-item.unread {
    background: color-mix(in srgb, var(--md-sys-color-primary) 4%, transparent);
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: var(--md-sys-shape-corner-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-outline);
}

/* ============================================
   Responsive — Mobile First MD3
   ============================================ */

/* Tablet: < 1024px */
@media (max-width: 1023.98px) {
    .kanban-column {
        min-width: 280px;
    }
}

/* Mobile landscape / small tablet: < 840px */
@media (max-width: 839.98px) {
    :root {
        --sidebar-width: 280px;
    }

    .sidebar {
        box-shadow: var(--md-sys-elevation-5);
    }

    .sidebar:not(.mobile-open) {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .top-app-bar .menu-icon {
        display: flex;
    }

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

    .kanban-column {
        min-width: 260px;
        max-width: 280px;
    }
}

/* Mobile portrait: < 600px */
@media (max-width: 599.98px) {
    :root {
        --top-app-bar-height: 56px;
    }

    .sidebar {
        width: 100%;
        max-width: 320px;
    }

    .top-app-bar {
        padding: 0 8px 0 0;
    }

    .top-app-bar .page-title {
        font-size: 18px;
    }

    .card-body {
        padding: 16px;
    }

    .table > :not(caption) > * > * {
        padding: 10px 12px;
        font-size: 13px;
    }

    .kanban-column {
        min-width: calc(100vw - 40px);
        max-width: calc(100vw - 40px);
    }

    .stat-card .stat-value {
        font-size: 24px;
    }

    .notification-dropdown {
        width: calc(100vw - 32px);
        right: 16px;
    }

    .modal-dialog {
        margin: 8px;
    }

    .modal-content {
        border-radius: var(--md-sys-shape-corner-large);
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 200ms cubic-bezier(0.2, 0, 0, 1);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-16px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in {
    animation: slideIn 200ms cubic-bezier(0.2, 0, 0, 1);
}

/* Spinner overlay */
.spinner-overlay {
    position: fixed;
    inset: 0;
    background: color-mix(in srgb, var(--md-sys-color-scrim) 40%, transparent);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.spinner-overlay.active {
    display: flex;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
}

/* Calendar */
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

#calendar {
    min-height: 400px;
}

/* Dropdown menu (MD3) */
.dropdown-menu {
    border: none;
    border-radius: var(--md-sys-shape-corner-medium);
    box-shadow: var(--md-sys-elevation-2);
    padding: 8px 0;
}

.dropdown-item {
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
}

.dropdown-item:hover {
    background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
    color: var(--md-sys-color-on-surface);
}

.dropdown-header {
    font-size: 14px;
    font-weight: 500;
    padding: 12px 16px;
    color: var(--md-sys-color-on-surface);
}

.dropdown-divider {
    border-top-color: var(--md-sys-color-outline-variant);
    margin: 4px 0;
}

/* Pagination */
.page-link {
    border: none;
    color: var(--md-sys-color-primary);
    border-radius: var(--md-sys-shape-corner-full);
    margin: 0 2px;
}

.page-link:hover {
    background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
    color: var(--md-sys-color-primary);
}

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

/* Nav tabs (MD3 tabs) */
.nav-tabs {
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.nav-tabs .nav-link {
    border: none;
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 500;
    font-size: 14px;
    padding: 12px 20px;
    position: relative;
}

.nav-tabs .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--md-sys-color-primary);
    border-radius: 3px 3px 0 0;
    transition: width var(--transition-speed-md) ease;
}

.nav-tabs .nav-link.active {
    color: var(--md-sys-color-primary);
    background: transparent;
}

.nav-tabs .nav-link.active::after {
    width: 100%;
}

/* Print */
@media print {
    .sidebar, .top-app-bar, .btn, .no-print {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}