/**
 * Projects Page - Modern UI/UX CSS
 * Verbeterde gebruikersinterface met moderne design principes
 */

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */

:root {
    /* Colors */
    --color-primary: #2196F3;
    --color-primary-dark: #1976D2;
    --color-primary-light: #E3F2FD;
    --color-success: #4CAF50;
    --color-success-light: #E8F5E9;
    --color-warning: #FF9800;
    --color-warning-light: #FFF3E0;
    --color-danger: #F44336;
    --color-danger-light: #FFEBEE;
    --color-danger-dark: #D32F2F;
    --color-danger-darker: #da190b;
    --color-purple: #9C27B0;
    --color-purple-light: #F3E5F5;
    --color-purple-dark: #7B1FA2;
    
    /* Button Colors */
    --color-btn-primary-hover: #333333;
    --color-btn-tertiary-hover: #E9E9E9;
    --color-btn-warning-dark: #f57c00;
    --color-btn-warning-darker: #E65100;
    --color-btn-success-dark: #45a049;
    --color-btn-success-darker: #2e7d32;
    --color-btn-success-darkest: #1b5e20;
    
    /* Neutrals */
    --color-bg: #F8F9FA;
    --color-bg-secondary: #FFFFFF;
    --color-bg-tertiary: #F5F5F5;
    --color-border: #E0E0E0;
    --color-border-light: #F0F0F0;
    --color-text: #212529;
    --color-text-secondary: #6C757D;
    --color-text-muted: #999999;
    --color-black: #000000;
    --color-white: #FFFFFF;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', 'Monaco', monospace;
    
    /* Font Sizes */
    --font-size-xs: 9px;
    --font-size-sm: 10px;
    --font-size-base: 11px;
    --font-size-md: 12px;
    --font-size-lg: 13px;
    --font-size-xl: 14px;
    --font-size-2xl: 15px;
    --font-size-3xl: 16px;
    --font-size-4xl: 18px;
    --font-size-5xl: 20px;
    --font-size-6xl: 24px;
    --font-size-7xl: 28px;
    
    /* Additional Spacing */
    --spacing-xxs: 2px;
    --spacing-xxl: 40px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.projects-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg);
    width: 100%;
    position: relative;
}

/* ============================================
   Sidebar
   ============================================ */

.projects-sidebar {
    width: 300px;
    min-width: 200px;
    max-width: 500px;
    background-color: var(--color-bg-secondary);
    border-right: 2px solid var(--color-border);
    display: flex !important;
    flex-direction: column;
    height: 100vh;
    max-height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
    visibility: visible !important;
    opacity: 1 !important;
}

.projects-sidebar::after {
    content: '';
    position: absolute;
    right: -2px;
    top: 0;
    bottom: 0;
    width: 4px;
    cursor: ew-resize;
    z-index: 10;
    background: transparent;
    transition: background-color 0.2s;
}

.projects-sidebar:hover::after {
    background-color: rgba(33, 150, 243, 0.2);
}

.projects-sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    background-color: var(--color-black);
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.projects-sidebar-header .login-logo {
    height: 30px;
    width: auto;
}

.projects-sidebar-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.projects-search-container {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    background-color: var(--color-bg-secondary);
    position: sticky;
    top: 57px;
    z-index: 9;
}

.projects-search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-family: var(--font-family);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.projects-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.projects-search-input::placeholder {
    color: var(--color-text-muted);
}

.projects-groups {
    flex: 1;
    padding: var(--spacing-sm) 0;
    overflow-y: auto;
}

.projects-group {
    margin-bottom: var(--spacing-xs);
}

.projects-group-header {
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
    user-select: none;
    font-size: var(--font-size-xl);
    background-color: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
}

.projects-group-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: transparent;
    transition: background-color var(--transition-base);
}

.projects-group-header:hover {
    background-color: var(--color-bg-tertiary);
}

.projects-group-header:hover::before {
    background-color: var(--color-primary);
}

.group-toggle {
    font-weight: 600;
    color: var(--color-text);
    font-size: var(--font-size-xl);
    flex: 1;
}

.group-count {
    color: var(--color-text-secondary);
    font-size: var(--font-size-md);
    font-weight: 600;
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-xs) calc(var(--spacing-sm) + var(--spacing-xxs));
    border-radius: var(--radius-full);
    min-width: 24px;
    text-align: center;
}

.projects-group-list {
    padding-left: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
}

.projects-group-list-rentman {
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

.rentman-date-header {
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: var(--spacing-xs) 0;
    background-color: var(--color-bg-tertiary);
    border-left: 3px solid var(--color-border);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    position: sticky;
    top: 0;
    z-index: 5;
    border-bottom: 1px solid var(--color-border-light);
}

.rentman-date-header.rentman-date-today {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-left-color: var(--color-primary-dark);
    box-shadow: 0 2px 4px rgba(33, 150, 243, 0.3);
}

.rentman-date-header.rentman-date-upcoming {
    background-color: var(--color-warning);
    color: var(--color-white);
    border-left-color: var(--color-btn-warning-darker);
    box-shadow: 0 2px 4px rgba(255, 152, 0, 0.3);
}

.project-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
    position: relative;
}

.project-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.project-item:hover {
    background-color: var(--color-bg-tertiary);
    padding-left: calc(var(--spacing-sm) + 2px);
}

.project-item:hover::before {
    width: 3px;
}

.project-item.active {
    background-color: var(--color-primary-light);
    border-left-color: var(--color-primary);
    font-weight: 500;
}

.project-item.active::before {
    width: 3px;
}

.project-item[draggable="true"] {
    cursor: grab;
}

.project-item[draggable="true"]:active {
    cursor: grabbing;
}

.project-item-drag-placeholder {
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: 0;
    border: 2px dashed var(--color-primary);
    border-radius: var(--radius-sm);
    background-color: var(--color-primary-light);
    opacity: 0.5;
}

.project-name {
    flex: 1;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    font-weight: 500;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-number {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    font-weight: 600;
    white-space: nowrap;
}

.project-status {
    font-size: var(--font-size-sm);
    padding: calc(var(--spacing-xxs) + 1px) var(--spacing-sm);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.status-open,
.status-todo {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

.status-bezig {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.status-completed,
.status-done {
    background-color: var(--color-success);
    color: var(--color-white);
}

.status-archived {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.btn-open-project {
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-open-project:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

/* ============================================
   Sidebar Actions
   ============================================ */

.projects-sidebar-actions {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    background-color: var(--color-bg-secondary);
    position: sticky;
    bottom: 0;
    flex-shrink: 0;
    width: 100%;
    box-sizing: border-box;
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--color-btn-primary-hover);
    border-color: var(--color-btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-tertiary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-tertiary:hover {
    background-color: var(--color-btn-tertiary-hover);
    border-color: var(--color-text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

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

.btn-danger:hover {
    background-color: var(--color-danger-darker);
    border-color: var(--color-danger-darker);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-danger:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

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

.btn-warning:hover {
    background-color: var(--color-btn-warning-dark);
    border-color: var(--color-btn-warning-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-warning:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-warning:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

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

.btn-success:hover {
    background-color: var(--color-btn-success-dark);
    border-color: var(--color-btn-success-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-success:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-success:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary-dark {
    background-color: var(--color-btn-success-darker);
    color: var(--color-white);
    border-color: var(--color-btn-success-darker);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.btn-primary-dark:hover {
    background-color: var(--color-btn-success-darkest);
    border-color: var(--color-btn-success-darkest);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary-dark:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Screen reader only text - verberg visueel maar behoud voor accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   Project Detail Area
   ============================================ */

.projects-detail {
    flex: 1;
    padding: var(--spacing-xl);
    overflow-y: auto;
    overflow-x: hidden;
    background-color: var(--color-bg);
    min-width: 0;
    position: relative;
    z-index: 0;
}

.project-detail-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.empty-state {
    text-align: center;
    color: var(--color-text-muted);
    max-width: 400px;
}

.empty-state h3 {
    font-size: var(--font-size-6xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.empty-state p {
    font-size: var(--font-size-2xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.project-detail {
    width: 100%;
    max-width: 100%;
    margin: 0;
}

/* ============================================
   Project Header
   ============================================ */

.project-header {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-sm);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--color-border-light);
}

.project-title-section {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.project-title-section h2 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin: 0;
}

.project-number-with-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.project-number {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-tertiary);
    padding: calc(var(--spacing-xxs) + 1px) calc(var(--spacing-xs) + var(--spacing-xxs));
    border-radius: var(--radius-sm);
    font-weight: 600;
    white-space: nowrap;
    margin-right: 0;
}

.btn-icon {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    opacity: 0.8;
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    min-width: 28px;
    height: 24px;
    font-weight: 600;
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
}

.btn-icon:hover {
    opacity: 1;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.btn-icon:active {
    transform: scale(0.95);
}

.project-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
}

.meta-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.meta-group-label {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.meta-items {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.meta-value {
    color: var(--color-text);
    font-size: var(--font-size-lg);
    line-height: 1.4;
}

.meta-value.meta-empty {
    color: var(--color-text-muted);
    font-style: italic;
}

.meta-item .label {
    font-weight: 600;
    color: var(--color-text-muted);
}

.project-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
}

.project-actions .btn {
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) calc(var(--spacing-sm) + var(--spacing-xs));
    font-size: var(--font-size-lg);
}

.main-category-select {
    padding: calc(var(--spacing-sm) + var(--spacing-xxs)) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 500;
    background-color: var(--color-bg-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--color-text);
}

.main-category-select:hover {
    border-color: var(--color-primary);
}

.main-category-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.btn-date-picker,
.btn-open-calendar {
    padding: calc(var(--spacing-sm) + var(--spacing-xxs)) calc(var(--spacing-md) + var(--spacing-xxs));
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--color-text);
}

.btn-date-picker:hover,
.btn-open-calendar:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-date-picker:active,
.btn-open-calendar:active {
    transform: translateY(0);
}

/* ============================================
   Subprojects Section
   ============================================ */

.subprojects-section {
    margin-bottom: var(--spacing-xl);
    width: 100%;
}

.subprojects-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

.subprojects-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-xs);
    width: 100%;
    box-sizing: border-box;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xs);
    background-color: var(--color-bg-tertiary);
}

.subproject-column-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-height: 150px;
    min-width: 0; /* Voorkom overflow in grid */
    transition: background-color var(--transition-base);
}

.subproject-column-container.drag-over {
    background-color: var(--color-primary-light);
    border: 2px dashed var(--color-primary);
    border-radius: var(--radius-md);
}

.subproject-column-header {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    font-size: var(--font-size-base);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    margin-bottom: 0;
    box-shadow: var(--shadow-sm);
}

.subproject-card[data-column="1"] {
    border-left: 3px solid var(--color-primary);
}

.subproject-card[data-column="2"] {
    border-left: 3px solid var(--color-success);
}

.subproject-card[data-column="3"] {
    border-left: 3px solid var(--color-warning);
}

.subproject-card[data-column="4"] {
    border-left: 3px solid var(--color-purple);
}

.subproject-card[data-column="5"] {
    border-left: 3px solid var(--color-danger);
}

.subproject-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    cursor: move;
}

.subproject-card[draggable="true"]:hover {
    cursor: grab;
}

.subproject-card[draggable="true"]:active {
    cursor: grabbing;
}

.subproject-card.status-bezig {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
}

.subproject-card.status-done {
    background-color: var(--color-success-light);
    border-color: var(--color-success);
}

.subproject-card.status-todo {
    background-color: var(--color-bg-secondary);
}

.subproject-card.subproject-card-hidden {
    background-color: var(--color-border);
    opacity: 0.7;
    cursor: default;
    border-color: var(--color-text-muted);
}

.subproject-card.subproject-card-hidden:hover {
    box-shadow: var(--shadow-sm);
    transform: none;
}

.subproject-card.subproject-card-hidden .subproject-title-input {
    color: var(--color-text-muted);
    cursor: default;
}

.subproject-card.subproject-card-hidden .subproject-controls-row {
    justify-content: center;
}

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

.subproject-title-row {
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: 0;
    min-width: 0;
    width: 100%;
    overflow: hidden;
    cursor: pointer;
    transition: background-color var(--transition-base);
    padding: var(--spacing-xxs) 0;
    border-radius: var(--radius-sm);
}

.subproject-title-row:hover {
    background-color: var(--color-bg-tertiary);
}

.subproject-title-row .subproject-title-input {
    cursor: pointer;
}

.subproject-title-row .subproject-title-input:focus {
    cursor: text;
}

.subproject-title-input {
    flex: 0 0 auto;
    min-width: 0;
    max-width: none;
    width: fit-content;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
    border: none;
    border-bottom: 2px solid transparent;
    padding: var(--spacing-xxs) 0;
    background: transparent;
    cursor: text;
    overflow: visible;
    text-overflow: clip;
    white-space: nowrap;
    transition: border-color var(--transition-base);
    line-height: 1.3;
    box-sizing: content-box;
}

.subproject-main-project-name {
    flex: 0 1 auto;
    min-width: 0;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.3;
    margin-left: 0;
    cursor: pointer;
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: text-decoration-color var(--transition-base), color var(--transition-base);
}

.subproject-main-project-name:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary);
}

.subproject-title-input:focus {
    outline: none;
    border-bottom-color: var(--color-primary);
}

.subproject-controls-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.btn-calendar-icon {
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    line-height: 1;
}

.btn-calendar-icon:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    transform: scale(1.1);
}

.subproject-status {
    margin-bottom: 0;
}

.status-chip {
    display: inline-block;
    padding: var(--spacing-xxs) calc(var(--spacing-xs) + var(--spacing-xxs));
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-chip.status-todo {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

.status-chip.status-bezig {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.status-chip.status-done {
    background-color: var(--color-success);
    color: var(--color-white);
}

.bus-display {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xxs) calc(var(--spacing-xs) + var(--spacing-xxs));
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    background-color: var(--color-warning-light);
    color: var(--color-btn-warning-darker);
    border: 1px solid var(--color-warning);
    margin-left: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    user-select: none;
    letter-spacing: 0;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

.bus-display::before {
    content: '\1F69A';
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
    margin-right: 3px;
    flex-shrink: 0;
}

.bus-display:hover {
    background-color: var(--color-warning);
    color: var(--color-white);
    border-color: var(--color-warning);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.bus-display:active {
    transform: scale(0.95);
}

.compartment-display {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xxs) calc(var(--spacing-xs) + var(--spacing-xxs));
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    background-color: var(--color-purple-light);
    color: var(--color-purple-dark);
    border: 1px solid var(--color-purple);
    margin-left: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    user-select: none;
    letter-spacing: 0;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

.compartment-display::before {
    content: '\1F4E6';
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
    margin-right: 3px;
    flex-shrink: 0;
}

.compartment-display:hover {
    background-color: var(--color-purple);
    color: var(--color-white);
    border-color: var(--color-purple);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.compartment-display:active {
    transform: scale(0.95);
}

.subproject-active-timers {
    margin-bottom: var(--spacing-xs);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.timer-chip {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: calc(var(--spacing-xxs) + 1px) var(--spacing-sm);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-primary-dark);
    font-weight: 600;
    border: 1px solid var(--color-primary);
}

.timer-display {
    font-weight: 700;
    font-family: var(--font-mono);
    font-size: var(--font-size-base);
}

.btn-stop-timer {
    padding: var(--spacing-xxs) calc(var(--spacing-xs) + var(--spacing-xxs));
    background-color: var(--color-black);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    cursor: pointer;
    margin-left: var(--spacing-xs);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-stop-timer:hover {
    background-color: var(--color-btn-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-stop-timer:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.subproject-employees-section {
    margin-top: var(--spacing-xs);
}

.btn-choose-employees-icon {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    line-height: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    border-radius: var(--radius-sm);
}

.btn-choose-employees-icon:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    transform: scale(1.1);
}

.btn-delete-subproject {
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    line-height: 1;
}

.btn-delete-subproject:hover {
    opacity: 1;
    background-color: var(--color-danger-light);
    transform: scale(1.1);
}

.btn-connect-icon {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    min-width: 20px;
    height: 20px;
}

.btn-connect-icon:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    transform: scale(1.1);
}

.btn-connect-icon.linked {
    opacity: 1;
    color: var(--color-primary);
}

.btn-connect-icon.unlinked {
    opacity: 0.5;
}

.btn-hide-icon,
.btn-unhide-icon {
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    min-width: 24px;
    height: 24px;
}

.btn-hide-icon:hover,
.btn-unhide-icon:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    transform: scale(1.1);
}

.btn-hide-icon:active,
.btn-unhide-icon:active {
    transform: scale(0.95);
}

.btn-note-icon {
    background: none;
    border: none;
    font-size: var(--font-size-3xl);
    cursor: pointer;
    padding: var(--spacing-xxs) var(--spacing-xs);
    opacity: 0.7;
    transition: all var(--transition-base);
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
}

.btn-note-icon:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    transform: scale(1.1);
}

.btn-note-icon:active {
    transform: scale(0.95);
}

.employee-icon {
    font-size: var(--font-size-xl);
    line-height: 1;
}

.employee-count {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text);
    background-color: var(--color-primary-light);
    padding: 1px var(--spacing-xs);
    border-radius: var(--radius-full);
    min-width: 14px;
    text-align: center;
}

.materialen-comments-section {
    margin-top: 4px;
    margin-bottom: 4px;
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-left: 2px solid var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
}

.materialen-comment-item {
    margin-bottom: 3px;
    line-height: 1.3;
}

.materialen-comment-item:last-child {
    margin-bottom: 0;
}

.materialen-comment-label {
    font-weight: 600;
    color: var(--color-text);
    margin-right: 4px;
    font-size: var(--font-size-base);
}

.materialen-comment-text {
    color: var(--color-text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: var(--font-size-base);
}

.subproject-dates-display {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    padding: var(--spacing-xxs) 0;
    font-weight: 500;
}

.subproject-note-display {
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-left: 2px solid var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    line-height: 1.3;
    white-space: pre-wrap;
    word-wrap: break-word;
    width: 100%;
    box-sizing: border-box;
    display: block;
    color: var(--color-text);
}

.note-textarea {
    width: 100%;
    min-height: 200px;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    resize: vertical;
}

.note-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.subproject-employees-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.employee-block {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-secondary);
    overflow: hidden;
    transition: all var(--transition-base);
}

.employee-block:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.employee-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-tertiary);
}

.employee-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.employee-active-timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.employee-registrations {
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.registration-entry {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding: 1px 0;
}

.registration-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.registration-time {
    font-weight: 700;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

.registration-label {
    color: var(--color-text-muted);
    font-style: italic;
    font-size: var(--font-size-xs);
}

.registration-comments-small {
    margin-top: 2px;
    padding: var(--spacing-xxs) var(--spacing-xs);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
    line-height: 1.3;
}

.employee-timer {
    font-size: var(--font-size-base);
    color: var(--color-primary-dark);
    font-weight: 700;
    font-family: var(--font-mono);
    margin-right: var(--spacing-xs);
}

.btn-start-employee {
    padding: var(--spacing-xs) calc(var(--spacing-sm) + var(--spacing-xxs));
    background-color: var(--color-success);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-start-employee:hover {
    background-color: var(--color-btn-success-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-start-employee:disabled {
    background-color: var(--color-text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-stop-employee {
    padding: var(--spacing-sm) calc(var(--spacing-md) + var(--spacing-xxs));
    background-color: var(--color-danger);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-stop-employee:hover {
    background-color: var(--color-danger-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

/* ============================================
   Active Timers & Registrations Sections
   ============================================ */

.active-timers-section,
.registrations-section {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--color-border-light);
}

.active-timers-section h3,
.registrations-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

#activeTimersList,
#registrationsList {
    min-height: 50px;
}

.active-timer-item,
.registration-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
    transition: background-color var(--transition-base);
    gap: var(--spacing-md);
}

.active-timer-item:hover,
.registration-item:hover {
    background-color: var(--color-bg-tertiary);
}

.active-timer-item:last-child,
.registration-item:last-child {
    border-bottom: none;
}

.registration-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.registration-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.registration-employee {
    font-weight: 600;
    color: var(--color-text);
}

.registration-subproject {
    color: var(--color-text-secondary);
}

.registration-details {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
}

.registration-date {
    font-weight: 500;
}

.registration-time {
    font-family: monospace;
}

.registration-duration {
    font-weight: 600;
    color: var(--color-text);
}

.registration-comments {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.registration-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    flex-shrink: 0;
}

.btn-edit-registration {
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) calc(var(--spacing-sm) + var(--spacing-xs));
    font-size: var(--font-size-lg);
    white-space: nowrap;
}

.btn-delete-registration {
    padding: calc(var(--spacing-xs) + var(--spacing-xxs)) calc(var(--spacing-sm) + var(--spacing-xs));
    font-size: var(--font-size-lg);
    white-space: nowrap;
    background-color: var(--color-danger);
    color: var(--color-white);
    border-color: var(--color-danger);
}

.btn-delete-registration:hover {
    background-color: var(--color-danger-dark);
    border-color: var(--color-danger-dark);
    opacity: 1;
}

.not-counted-label {
    color: var(--color-danger);
    font-size: var(--font-size-md);
    font-style: italic;
    margin-left: var(--spacing-sm);
    font-weight: 500;
}

/* ============================================
   Modals
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: modalFadeIn var(--transition-base);
}

.modal-content {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn var(--transition-slow);
    border: 1px solid var(--color-border);
    margin: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

/* Calendar modal should fit without scroll */
#projectsDateModal .modal-content {
    max-height: calc(100vh - var(--spacing-md) * 2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-content.large {
    max-width: 900px;
}

.modal-content.medium {
    max-width: 650px;
}

.bus-modal-content {
    max-width: 550px;
}

.compartment-modal-content {
    max-width: 400px;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border-light);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-header h2 {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    color: var(--color-text);
}

.modal-close {
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-sm) calc(var(--spacing-md) + var(--spacing-xxs));
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    line-height: 1;
    min-height: 36px;
}

.modal-header .modal-close {
    min-width: 36px;
    width: 36px;
    height: 36px;
    padding: 0;
    font-size: var(--font-size-7xl);
    line-height: 1;
    border-radius: var(--radius-md);
}

#projectsBusModalClose,
#projectsConfirmClose {
    min-width: 80px;
    width: auto;
    height: auto;
    padding: var(--spacing-sm) calc(var(--spacing-md) + var(--spacing-xxs));
    font-size: var(--font-size-xl);
}

.modal-close:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-text-secondary);
    color: var(--color-black);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.modal-body {
    padding: var(--spacing-xl);
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

/* Calendar modal body should fit without scroll */
#projectsDateModal .modal-body {
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: var(--spacing-md);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-tertiary);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    flex-shrink: 0;
}

/* Calendar modal header and actions should not shrink */
#projectsDateModal .modal-header {
    flex-shrink: 0;
}

#projectsDateModal .modal-actions {
    flex-shrink: 0;
}

.btn-cancel {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 100px;
}

.btn-cancel:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-save {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-black);
    color: var(--color-white);
    border: 2px solid #000000;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 100px;
    box-shadow: var(--shadow-sm);
}

.btn-save:hover {
    background-color: var(--color-btn-primary-hover);
    border-color: var(--color-btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-save:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   Forms
   ============================================ */

.projects-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group select {
    padding: calc(var(--spacing-md) - var(--spacing-xxs)) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.project-modal-date-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.date-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-lg);
    color: var(--color-primary-dark);
    font-weight: 600;
    border: 1px solid var(--color-primary);
}

.date-chip .remove {
    cursor: pointer;
    font-weight: bold;
    opacity: 0.7;
    margin-left: var(--spacing-xs);
    font-size: var(--font-size-4xl);
    line-height: 1;
    padding: 0 4px;
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
}

.date-chip .remove:hover {
    opacity: 1;
    color: var(--color-danger);
    background-color: rgba(244, 67, 54, 0.1);
}

.project-modal-date-input {
    display: flex;
    gap: var(--spacing-sm);
}

.project-modal-date-input input {
    flex: 1;
}

/* ============================================
   Calendar Date Modal
   ============================================ */

.calendar-date-modal {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.calendar-container {
    width: 100%;
    flex-shrink: 0;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-shrink: 0;
}

.calendar-nav {
    padding: calc(var(--spacing-sm) + var(--spacing-xxs)) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-3xl);
    font-weight: 600;
    transition: all var(--transition-base);
    color: var(--color-text);
}

.calendar-nav:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.calendar-month {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-text);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
}

.calendar-weekday {
    text-align: center;
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    font-size: var(--font-size-xl);
}

.calendar-day.empty {
    cursor: default;
    visibility: hidden;
}

.calendar-day.selected {
    background-color: var(--color-success);
    color: var(--color-white);
    border-color: var(--color-success);
    font-weight: 700;
}

.calendar-day.today {
    font-weight: 700;
    border-color: var(--color-warning);
    background-color: var(--color-warning-light);
}

.project-date-selected {
    flex-shrink: 0;
    max-height: 150px;
    overflow-y: auto;
    padding: var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    color: var(--color-text);
    display: block;
    visibility: visible;
    margin-top: var(--spacing-sm);
}

.project-date-selected p {
    margin: 0 0 var(--spacing-sm) 0;
    font-weight: 600;
    color: var(--color-text);
}

.project-date-selected ul {
    margin: 0;
    padding-left: var(--spacing-lg);
    color: var(--color-text);
    list-style-type: disc;
}

.project-date-selected li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.schedule-timing-inputs {
    flex-shrink: 0;
    margin-top: 0;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.calendar-day:hover:not(.empty) {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
}

.calendar-day.selected:hover {
    background-color: var(--color-btn-success-dark);
}

/* ============================================
   Bus Selection Modal
   ============================================ */

.bus-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 450px;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

/* Remove scrolling for compartment options - show all compartments */
/* This applies to all stop pop-ups that use the compartment modal */
#projectsCompartmentOptions.bus-list,
#projectsCompartmentModal #projectsCompartmentOptions {
    max-height: none !important;
    overflow-y: visible !important;
}

/* Grid layout for compartment buttons */
#projectsCompartmentOptions {
    display: block; /* Let child grid handle layout */
}

#projectsCompartmentOptions > div[style*="grid"] {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    padding: 0.5rem;
}

#projectsCompartmentOptions .compartment-option-btn {
    min-height: 44px;
}

.compartment-option-btn.selected {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

/* Fix focus styling for compartment buttons - remove gray border and overlay */
.compartment-option-btn:focus,
.compartment-option-btn:focus-visible {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* Remove browser default focus styles when not using keyboard navigation */
.compartment-option-btn:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

/* Remove scrolling for bus options - show all buses */
/* This applies to the bus selection modal */
#projectsBusOptions.bus-list,
#projectsBusModal #projectsBusOptions {
    max-height: none !important;
    overflow-y: visible !important;
    display: flex;
    flex-direction: column;
    padding: 0;
}

/* Grid layout for bus buttons */
#projectsBusOptions .bus-option-btn {
    min-height: 44px;
}

/* Ensure all non-selected bus buttons have consistent styling with higher specificity */
#projectsBusOptions .bus-option-btn:not(.selected),
#projectsBusOptions .bus-option-btn:not(.selected):hover,
#projectsBusOptions .bus-option-btn:not(.selected):focus,
#projectsBusOptions .bus-option-btn:not(.selected):active {
    background-color: var(--color-bg-secondary) !important;
    color: var(--color-text) !important;
    border-color: var(--color-border) !important;
    transform: none !important;
    box-shadow: none !important;
}

.bus-option-btn.selected {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

.bus-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    background-color: var(--color-bg-secondary);
}

.bus-checkbox:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
}

.bus-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.bus-checkbox span {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    font-weight: 500;
}

.bus-other-input {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
}

.bus-other-input label {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.bus-other-input input[type="text"] {
    width: 100%;
    padding: calc(var(--spacing-md) - var(--spacing-xxs)) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
}

.bus-other-input input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ============================================
   Employee Dropdown
   ============================================ */

.employee-dropdown {
    position: absolute;
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 280px;
    max-height: 450px;
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow: hidden;
}

.dropdown-header {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    flex-shrink: 0;
}

.dropdown-header .select-all-btn,
.dropdown-header .select-none-btn {
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    user-select: none;
}

.dropdown-header .select-all-btn:hover,
.dropdown-header .select-none-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.dropdown-header .select-all-btn:active,
.dropdown-header .select-none-btn:active {
    transform: scale(0.95);
}

.employee-list {
    padding: var(--spacing-sm);
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.employee-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

.employee-checkbox:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
}

.employee-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.employee-checkbox span {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    font-weight: 500;
}

.dropdown-actions {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-tertiary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    flex-shrink: 0;
}

.btn-confirm-employees {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-confirm-employees:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Confirm Modal
   ============================================ */

#projectsConfirmMessage {
    font-size: var(--font-size-2xl);
    line-height: 1.7;
    color: var(--color-text);
}

#projectsConfirmMessage strong {
    font-weight: 700;
    color: var(--color-black);
}

.hint {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-top: var(--spacing-sm);
    line-height: 1.6;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (min-width: 768px) and (max-width: 1199px) {
    .projects-detail {
        padding: var(--spacing-lg);
    }
    
    .project-header {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-sm);
    }
    
    .project-title-section h2 {
        font-size: var(--font-size-4xl);
    }
    
    .projects-sidebar-header {
        padding: var(--spacing-lg);
    }
    
    .subproject-card {
        padding: var(--spacing-sm);
    }
    
    .subproject-title-input {
        font-size: var(--font-size-md);
    }
    
    .subproject-main-project-name {
        font-size: var(--font-size-md);
    }
    
    .subprojects-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: var(--spacing-xs);
        padding: var(--spacing-xs);
    }
}

@media (min-width: 1200px) {
    .subprojects-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: var(--spacing-xs);
    }
    
    .subproject-column-container {
        min-width: 0; /* Voorkom overflow */
    }
}

@media (max-width: 767px) {
    .projects-layout {
        flex-direction: column;
    }
    
    .projects-sidebar {
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        height: auto;
        max-height: 80vh;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        display: flex !important;
    }
    
    .projects-sidebar-header {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-shrink: 0;
    }
    
    .projects-search-container {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-shrink: 0;
    }
    
    .projects-groups {
        flex: 1;
        min-height: 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .projects-sidebar-actions {
        flex-shrink: 0;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .projects-detail {
        padding: var(--spacing-md);
    }
    
    .project-header {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .project-title-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    
    .project-title-section h2 {
        font-size: var(--font-size-4xl);
    }
    
    .project-number-with-actions {
        width: 100%;
        margin-top: var(--spacing-xs);
    }
    
    .project-meta {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        font-size: var(--font-size-md);
    }
    
    .project-actions {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }
    
    .project-actions > * {
        width: 100%;
    }
    
    .subprojects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .subproject-card {
        padding: var(--spacing-sm);
    }
    
    .subproject-title-input {
        font-size: var(--font-size-md);
    }
    
    .subproject-main-project-name {
        font-size: var(--font-size-md);
    }
    
    .subproject-employees-section {
        margin-top: var(--spacing-xs);
    }
    
    .subproject-employees-list {
        gap: var(--spacing-xs);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: calc(100% - var(--spacing-md) * 2);
        max-width: calc(100vw - var(--spacing-md) * 2);
        margin: var(--spacing-md);
        max-height: calc(100vh - var(--spacing-md) * 2);
    }
    
    .modal-content.large,
    .modal-content.medium,
    .bus-modal-content,
    .compartment-modal-content {
        width: calc(100% - var(--spacing-md) * 2);
        max-width: calc(100vw - var(--spacing-md) * 2);
    }
    
    .subprojects-section h3,
    .active-timers-section h3,
    .registrations-section h3 {
        font-size: var(--font-size-md);
    }
}

@media (max-width: 480px) {
    .projects-detail {
        padding: var(--spacing-sm);
    }
    
    .project-header {
        padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-xs) var(--spacing-xs);
    }
    
    .project-title-section h2 {
        font-size: var(--font-size-3xl);
    }
    
    .subproject-card {
        padding: var(--spacing-sm);
    }
    
    .subproject-title-input {
        font-size: var(--font-size-md);
    }
    
    .subproject-main-project-name {
        font-size: var(--font-size-base);
    }
    
    .modal {
        padding: var(--spacing-sm);
        align-items: flex-start;
        padding-top: var(--spacing-md);
    }
    
    .modal-content {
        border-radius: var(--radius-md);
        margin: 0;
        width: 100%;
        max-width: 100%;
        max-height: calc(100vh - var(--spacing-md) * 2);
    }
    
    .modal-content.large,
    .modal-content.medium,
    .bus-modal-content,
    .compartment-modal-content {
        width: 100%;
        max-width: 100%;
    }
    
    .modal-header {
        padding: var(--spacing-md);
        border-radius: var(--radius-md) var(--radius-md) 0 0;
    }
    
    .modal-header h2 {
        font-size: var(--font-size-4xl);
    }
    
    .modal-body {
        padding: var(--spacing-md);
        font-size: var(--font-size-xl);
    }
    
    .modal-body p {
        font-size: var(--font-size-xl);
        line-height: 1.5;
    }
    
    .modal-actions {
        padding: var(--spacing-md);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        flex-direction: column-reverse;
        gap: var(--spacing-sm);
    }
    
    .modal-actions .btn {
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xl);
    }
    
    .modal-close {
        min-width: 32px;
        width: 32px;
        height: 32px;
        font-size: var(--font-size-6xl);
    }
}

/* ============================================
   Accessibility
   ============================================ */

button:focus,
input:focus,
select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}