/* Airedale Group Holiday System - Styles
   Brand Guidelines Applied: 2024 */

/* ============================================
   CSS Custom Properties (Brand Colours)
   ============================================ */
:root {
    /* Primary Palette */
    --color-green: #19895B;
    --color-green-light: #2BA872;
    --color-green-dark: #14704A;
    --color-navy: #2A3E46;
    --color-navy-light: #3D5560;
    --color-grey-light: #F4F3F1;
    --color-white: #FFFFFF;

    /* Sub-brand Colours */
    --color-service-yellow: #FFC915;
    --color-design-orange: #EF6848;
    --color-lighthouse-teal: #0E9699;

    /* Status Colours */
    --color-pending: #FFC915;
    --color-approved: #19895B;
    --color-rejected: #EF6848;
    --color-cancelled: #9CA3AF;

    /* Neutral Palette */
    --color-grey-100: #F7F7F6;
    --color-grey-200: #E5E5E3;
    --color-grey-300: #D1D1CF;
    --color-grey-400: #9CA3AF;
    --color-grey-500: #6B7280;
    --color-grey-600: #4B5563;
    --color-grey-700: #374151;

    /* Typography */
    --font-primary: 'Degular', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(42, 62, 70, 0.05);
    --shadow-md: 0 4px 6px rgba(42, 62, 70, 0.07);
    --shadow-lg: 0 10px 15px rgba(42, 62, 70, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-navy);
    background-color: var(--color-grey-light);
    min-height: 100vh;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-navy);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-green);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-green-dark);
}

/* ============================================
   Layout Components
   ============================================ */

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-grey-200);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-logo {
    height: 40px;
    width: auto;
}

.header-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-navy);
}

.header-title span {
    color: var(--color-green);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-grey-light);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-menu:hover {
    background: var(--color-grey-200);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-green);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-name {
    font-weight: 500;
}

/* Header Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    background: none;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-grey-500);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-item:hover {
    color: var(--color-navy);
    background: var(--color-grey-100);
}

.nav-item.active {
    color: var(--color-green);
    background: rgba(25, 137, 91, 0.1);
}

/* Legacy Navigation (if using list structure) */
.app-nav {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-grey-200);
    padding: 0 var(--spacing-xl);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-item a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-grey-500);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
}

.nav-item a:hover {
    color: var(--color-navy);
    background: var(--color-grey-100);
}

.nav-item.active a {
    color: var(--color-green);
    border-bottom-color: var(--color-green);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-size: var(--font-size-2xl);
}

/* ============================================
   Card Components
   ============================================ */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-grey-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-grey-200);
    background: var(--color-grey-100);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-top: 4px solid var(--color-green);
}

.stat-card.pending {
    border-top-color: var(--color-pending);
}

.stat-card.used {
    border-top-color: var(--color-navy);
}

.stat-card.selected {
    border-top-color: var(--color-lighthouse-teal);
    background: rgba(14, 150, 153, 0.05);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-grey-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-navy);
}

.stat-unit {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--color-grey-500);
}

/* ============================================
   Button Styles
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-green-dark);
    border-color: var(--color-green-dark);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-navy);
    border-color: var(--color-grey-300);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-grey-100);
    border-color: var(--color-grey-400);
}

.btn-success {
    background: var(--color-approved);
    color: var(--color-white);
    border-color: var(--color-approved);
}

.btn-success:hover:not(:disabled) {
    background: var(--color-green-dark);
    border-color: var(--color-green-dark);
}

.btn-danger {
    background: var(--color-rejected);
    color: var(--color-white);
    border-color: var(--color-rejected);
}

.btn-danger:hover:not(:disabled) {
    background: #D94F2E;
    border-color: #D94F2E;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.form-label.required::after {
    content: ' *';
    color: var(--color-rejected);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-grey-300);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-green);
    box-shadow: 0 0 0 3px rgba(25, 137, 91, 0.15);
}

.form-control:disabled {
    background: var(--color-grey-100);
    cursor: not-allowed;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: var(--spacing-2xl);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--color-grey-500);
    margin-top: var(--spacing-xs);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* ============================================
   Table Styles
   ============================================ */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-grey-200);
}

.table th {
    font-weight: 600;
    color: var(--color-grey-600);
    background: var(--color-grey-100);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background: var(--color-grey-100);
}

.table tbody tr.selected-row {
    background: rgba(25, 137, 91, 0.1);
}

.table tbody tr.selected-row:hover {
    background: rgba(25, 137, 91, 0.15);
}

.table tbody tr {
    cursor: pointer;
}

.table-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ============================================
   Status Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
}

.badge-pending {
    background: rgba(255, 201, 21, 0.15);
    color: #B8860B;
}

.badge-approved {
    background: rgba(25, 137, 91, 0.15);
    color: var(--color-green-dark);
}

.badge-rejected {
    background: rgba(239, 104, 72, 0.15);
    color: #C94432;
}

.badge-cancelled {
    background: var(--color-grey-200);
    color: var(--color-grey-600);
}

/* ============================================
   Calendar Styles
   ============================================ */
.calendar-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--color-navy);
    color: var(--color-white);
}

.calendar-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-white);
}

.calendar-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.calendar-nav button {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.calendar-nav button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.calendar-filters {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-grey-100);
    border-bottom: 1px solid var(--color-grey-200);
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid var(--color-grey-300);
    background: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--color-green);
    background: rgba(25, 137, 91, 0.1);
    color: var(--color-green);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

/* Weekdays-only calendar (Mon-Fri) */
.calendar-grid.calendar-weekdays-only {
    grid-template-columns: repeat(5, 1fr);
}

.calendar-day-header {
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-grey-500);
    background: var(--color-grey-100);
    border-bottom: 1px solid var(--color-grey-200);
}

.calendar-day {
    min-height: 120px;
    padding: var(--spacing-sm);
    border-right: 1px solid var(--color-grey-200);
    border-bottom: 1px solid var(--color-grey-200);
    background: var(--color-white);
}

.calendar-day:nth-child(7n) {
    border-right: none;
}

.calendar-day.other-month {
    background: var(--color-grey-100);
}

.calendar-day.other-month .day-number {
    color: var(--color-grey-400);
}

.calendar-day.today {
    background: rgba(25, 137, 91, 0.05);
}

.calendar-day.today .day-number {
    background: var(--color-green);
    color: white;
}

.calendar-day.weekend {
    background: var(--color-grey-100);
}

.day-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    font-weight: 500;
    font-size: var(--font-size-sm);
    border-radius: 50%;
    margin-bottom: var(--spacing-xs);
}

.day-events {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.calendar-event {
    padding: 2px var(--spacing-xs);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
}

.calendar-event.approved {
    background: var(--color-approved);
    color: white;
}

.calendar-event.pending {
    background: var(--color-pending);
    color: var(--color-navy);
}

.calendar-event.bank-holiday {
    background: var(--color-grey-400);
    color: white;
}

.calendar-legend {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-grey-100);
    border-top: 1px solid var(--color-grey-200);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-sm);
}

/* ============================================
   Modal Styles
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(42, 62, 70, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-grey-200);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-grey-500);
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-navy);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-grey-200);
    background: var(--color-grey-100);
}

/* ============================================
   Alert & Notification Styles
   ============================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-success {
    background: rgba(25, 137, 91, 0.1);
    border: 1px solid var(--color-green);
    color: var(--color-green-dark);
}

.alert-warning {
    background: rgba(255, 201, 21, 0.1);
    border: 1px solid var(--color-pending);
    color: #8B6914;
}

.alert-error {
    background: rgba(239, 104, 72, 0.1);
    border: 1px solid var(--color-rejected);
    color: #B33D28;
}

.alert-info {
    background: rgba(14, 150, 153, 0.1);
    border: 1px solid var(--color-lighthouse-teal);
    color: #0A6E70;
}

.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-navy);
    color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
}

.toast.success {
    background: var(--color-green);
}

.toast.error {
    background: var(--color-rejected);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   Request List / Approvals
   ============================================ */
.request-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.request-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--color-grey-100);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-grey-400);
}

.request-item.pending {
    border-left-color: var(--color-pending);
}

.request-item.approved {
    border-left-color: var(--color-approved);
}

.request-item.rejected {
    border-left-color: var(--color-rejected);
}

.request-info {
    flex: 1;
}

.request-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.request-dates {
    font-size: var(--font-size-sm);
    color: var(--color-grey-500);
}

.request-days {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-navy);
    margin: 0 var(--spacing-lg);
    white-space: nowrap;
    min-width: 70px;
    text-align: right;
}

.request-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* ============================================
   Empty States
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-grey-500);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-grey-600);
}

.empty-state-text {
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   User Selection (Login Simulation)
   ============================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-green-dark) 100%);
}

.login-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 450px;
    text-align: center;
}

.login-logo {
    margin-bottom: var(--spacing-lg);
}

.login-logo svg {
    height: 60px;
    width: auto;
}

.login-title {
    margin-bottom: var(--spacing-sm);
}

.login-subtitle {
    color: var(--color-grey-500);
    margin-bottom: var(--spacing-xl);
}

.user-select-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.user-select-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-grey-100);
    border: 2px solid var(--color-grey-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-select-btn:hover {
    border-color: var(--color-green);
    background: rgba(25, 137, 91, 0.05);
}

.user-select-btn .user-avatar {
    width: 48px;
    height: 48px;
    font-size: var(--font-size-lg);
}

.user-select-btn .user-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.user-select-btn .user-role {
    font-size: var(--font-size-xs);
    color: var(--color-grey-500);
}

/* Department colour coding */
.dept-leadership .user-avatar { background: var(--color-navy); }
.dept-iot .user-avatar { background: var(--color-lighthouse-teal); }
.dept-development .user-avatar { background: var(--color-green); }
.dept-support .user-avatar { background: var(--color-service-yellow); color: var(--color-navy); }

/* ============================================
   Dashboard Grid
   ============================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.dashboard-main {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.dashboard-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* ============================================
   Quick Actions
   ============================================ */
.quick-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: var(--spacing-md);
    }

    .header-title {
        display: none;
    }

    .app-main {
        padding: var(--spacing-md);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-list {
        overflow-x: auto;
    }

    .calendar-day {
        min-height: 80px;
    }

    .user-select-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Utilities
   ============================================ */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--color-grey-500);
}

.text-success {
    color: var(--color-green);
}

.text-warning {
    color: #B8860B;
}

.text-danger {
    color: var(--color-rejected);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

/* ============================================
   Multi-Select Dropdown
   ============================================ */
.multi-select-trigger {
    background: var(--color-white);
}

.multi-select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border: 2px solid var(--color-grey-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    margin-top: 4px;
    min-width: 280px;
}

.multi-select-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-grey-200);
    background: var(--color-grey-100);
}

.multi-select-list {
    max-height: 250px;
    overflow-y: auto;
}

.multi-select-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.multi-select-item:hover {
    background: var(--color-grey-100);
}

.multi-select-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.multi-select-item span:first-of-type {
    flex: 1;
    font-size: var(--font-size-sm);
}

.multi-select-dept {
    font-size: var(--font-size-xs);
    color: var(--color-grey-500);
    background: var(--color-grey-100);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.multi-select-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--color-grey-200);
    background: var(--color-grey-100);
}

.multi-select-count {
    font-size: var(--font-size-sm);
    color: var(--color-grey-500);
}

/* ============================================
   Calendar - Own Request Highlighting
   ============================================ */
.calendar-event.own-request {
    border: 2px solid rgba(0, 0, 0, 0.2);
    font-weight: 600;
}

.calendar-event.own-request:hover {
    transform: scale(1.02);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}