/* Global Design System & Variables */
:root {
    --primary-color: #2c3e50;
    --primary-light: #34495e;
    --secondary-color: #3498db;
    --secondary-hover: #2980b9;
    --accent-color: #e74c3c;
    --accent-hover: #c0392b;
    --success-color: #2ecc71;
    --warning-color: #f1c40f;
    --info-color: #9b59b6;
    
    /* Light Mode (default) */
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-color: #2d3748;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --border-focus: #3498db;
    --header-bg: #ffffff;
    --footer-bg: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

/* Base Reset & Styling */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--secondary-hover);
}

/* Header & Navigation */
.app-header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--secondary-color);
}

.logo-subtext {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-color);
}

.nav-link.active {
    border-bottom-color: var(--secondary-color);
}

.header-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Main Content Views */
.app-main {
    flex: 1;
    padding: 2rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.view-section {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.hidden {
    display: none !important;
}

/* Layout Utilities */
.grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.grid > * {
    min-width: 0;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

@media (min-width: 992px) {
    .grid-3 { grid-template-columns: 2fr 1fr; }
    .col-span-2 { grid-column: span 2; }
}

.max-w-lg { max-width: 800px; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.card-header h3 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.card-header p {
    margin-bottom: 0;
    font-size: 0.85rem;
}

.card-body {
    padding: 1.5rem;
}

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

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--text-color);
}

.form-control, input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="date"], input[type="time"], select, textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    color: var(--text-color);
    transition: all 0.2s;
}

.form-control:focus, input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

textarea {
    resize: vertical;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: var(--secondary-hover);
}

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

.btn-secondary:hover {
    background-color: var(--primary-light);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-color);
}

.btn-outline:hover {
    background-color: var(--border-color);
}

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

.btn-danger:hover {
    background-color: var(--accent-hover);
}

.btn-warning {
    background-color: var(--warning-color);
    color: #1a202c;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: 0.5rem;
    aspect-ratio: 1;
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--accent-color);
    border-color: rgba(231, 76, 60, 0.2);
}

.alert-info {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--secondary-color);
    border-color: rgba(52, 152, 219, 0.2);
}

.alert-success {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
    border-color: rgba(46, 204, 113, 0.2);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.table th, .table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* Badges */
.badge {
    display: inline-flex;
    padding: 0.125rem 0.375rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-admin { background-color: rgba(155, 89, 182, 0.15); color: var(--info-color); }
.badge-employee { background-color: rgba(52, 152, 219, 0.15); color: var(--secondary-color); }
.badge-active { background-color: rgba(46, 204, 113, 0.15); color: var(--success-color); }
.badge-inactive { background-color: rgba(113, 128, 150, 0.15); color: var(--text-muted); }
.badge-pending { background-color: rgba(241, 124, 15, 0.15); color: #f17c0f; }
.badge-approved { background-color: rgba(46, 204, 113, 0.15); color: var(--success-color); }
.badge-rejected { background-color: rgba(231, 76, 60, 0.15); color: var(--accent-color); }

/* Login View Styling */
.login-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
}

.login-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: var(--secondary-color);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
}

/* Vacation Statistics Box */
.vacation-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-box {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 1rem;
    text-align: center;
}

.stat-box.highlight {
    background-color: rgba(52, 152, 219, 0.05);
    border-color: var(--secondary-color);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Divider */
.divider {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 1.5rem 0;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: transparent;
    border: 0;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover, .tab-btn.active {
    color: var(--text-color);
}

.tab-btn.active {
    border-bottom-color: var(--secondary-color);
}

/* Roster Section & Grid */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.section-header h1 {
    margin-bottom: 0;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.date-controls {
    display: flex;
    gap: 0.25rem;
}

/* Roster Visual Grid System */
.roster-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.roster-main-content {
    width: 100%;
}

.roster-sidebar {
    width: 100%;
    position: static;
}

@media (max-width: 1024px) {
    .roster-layout {
        flex-direction: column;
    }
    
    .roster-sidebar {
        max-width: 100%;
        width: 100%;
        position: static;
    }
}

.roster-grid-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.roster-location-section {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.location-title-bar {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
}

.roster-columns-wrapper {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    border-bottom: 1px solid var(--border-color);
}

/* Individual Day Column */
.roster-day-column {
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    min-height: 250px;
}

.roster-day-column:last-child {
    border-right: 0;
}

.roster-day-header {
    padding: 0.75rem;
    text-align: center;
    background-color: rgba(0,0,0,0.02);
    border-bottom: 1px solid var(--border-color);
}

.day-title {
    font-weight: 700;
    font-size: 0.9rem;
    display: block;
}

.day-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.roster-day-header.holiday {
    background-color: rgba(231, 76, 60, 0.1);
}

.roster-day-header.holiday .day-title {
    color: var(--accent-color);
}

.holiday-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-top: 0.25rem;
}

/* Shifts inside Day Column */
.roster-shifts-list {
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.roster-empty-day {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-align: center;
    padding: 1.5rem 0.5rem;
}

.roster-shift-card {
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    padding: 0.5rem;
    font-size: 0.8rem;
    position: relative;
    cursor: pointer;
    transition: all 0.2s;
    background-color: rgba(52, 152, 219, 0.05);
    border-left: 4px solid var(--secondary-color);
}

.roster-shift-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* Person-specific Color Coding classes (pastel backgrounds + solid borders) */
.roster-shift-card.shift-color-1 { background-color: rgba(46, 204, 113, 0.08); border-left-color: #2ecc71; } /* Gerhard (Green) */
.roster-shift-card.shift-color-2 { background-color: rgba(155, 89, 182, 0.08); border-left-color: #9b59b6; } /* Erik (Purple) */
.roster-shift-card.shift-color-3 { background-color: rgba(52, 152, 219, 0.08); border-left-color: #3498db; } /* Patrick (Blue) */
.roster-shift-card.shift-color-4 { background-color: rgba(230, 126, 34, 0.08); border-left-color: #e67e22; } /* Kosi (Orange) */
.roster-shift-card.shift-color-5 { background-color: rgba(241, 196, 15, 0.08); border-left-color: #f1c40f; } /* Bianca (Yellow) */
.roster-shift-card.shift-color-6 { background-color: rgba(26, 188, 156, 0.08); border-left-color: #1abc9c; } /* Karin (Teal) */
.roster-shift-card.shift-color-7 { background-color: rgba(52, 73, 94, 0.08); border-left-color: #34495e; } /* Niclas (Indigo) */
.roster-shift-card.shift-color-8 { background-color: rgba(253, 121, 168, 0.08); border-left-color: #fd79a8; }
.roster-shift-card.shift-color-9 { background-color: rgba(0, 184, 148, 0.08); border-left-color: #00b894; }
.roster-shift-card.shift-color-10 { background-color: rgba(214, 48, 49, 0.08); border-left-color: #d63031; }

.roster-shift-card.unassigned {
    background-color: rgba(231, 76, 60, 0.05);
    border-left-color: var(--accent-color);
}

.shift-time {
    display: block;
    font-weight: 700;
    color: var(--text-color);
}

.shift-employee {
    display: block;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 0.125rem;
}

.shift-status-badge {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.05rem 0.2rem;
    border-radius: 2px;
}

.shift-status-badge.draft { background-color: var(--warning-color); color: #1a202c; }
.shift-status-badge.unassigned { background-color: var(--accent-color); color: white; }

.shift-break-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    background-color: rgba(0, 0, 0, 0.05);
    padding: 0.05rem 0.3rem;
    border-radius: 4px;
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* Feiertag (FT) badge on shift cards */
.ft-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    padding: 0.08rem 0.3rem;
    border-radius: 3px;
    margin-left: 0.35rem;
    vertical-align: middle;
    letter-spacing: 0.05em;
    box-shadow: 0 1px 2px rgba(245,158,11,0.4);
}

/* Holiday shift card styling */
.roster-shift-card.holiday-shift {
    border-left: 3px solid #f59e0b;
    background: linear-gradient(135deg, rgba(255,251,235,0.3), transparent);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    overflow-y: auto;
    padding: 1.5rem;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.2s;
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    padding: 1.5rem;
    margin: auto;
    animation: modalSlideUp 0.25s ease-out;
}

@keyframes modalSlideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 1.25rem;
}

.modal-header h3 {
    margin-bottom: 0;
}

.modal-close {
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-muted);
}

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

/* Preferences Layout */
.preferences-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.pref-day-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.pref-day-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.pref-day-row .day-name {
    font-weight: 700;
}

.pref-selects {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

@media (max-width: 576px) {
    .pref-day-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    .pref-selects {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

.flex-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Footer */
.app-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--footer-bg);
    padding: 1.5rem 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: auto;
}

/* Named page sizes for clean document print layout */
@page landscape-page {
    size: A4 landscape;
    margin: 8mm;
}
@page portrait-page {
    size: A4 portrait;
    margin: 10mm;
}

/* Landscape Print Styling (DIN A4 Quer) */
@media print {
    body.printing-active {
        page: landscape-page;
        background: white !important;
        color: black !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    body.printing-active .app-container {
        min-height: auto !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    body.printing-active .app-main {
        padding: 0 !important;
        margin: 0 !important;
        max-width: 100% !important;
        width: 100% !important;
    }
    
    body.printing-active .roster-layout {
        display: block !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        box-shadow: none !important;
    }
    
    body.printing-active #app-header,
    body.printing-active .view-section:not(#view-roster),
    body.printing-active .section-header,
    body.printing-active .date-controls,
    body.printing-active .header-actions,
    body.printing-active .app-footer,
    body.printing-active .roster-sidebar,
    body.printing-active .roster-location-section:not(.print-target) {
        display: none !important;
    }
    
    body.printing-active .roster-location-section.print-target {
        border: none !important;
        box-shadow: none !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        display: block !important;
    }
    
    body.printing-active .location-title-bar {
        background-color: #ffffff !important;
        color: #000000 !important;
        font-size: 1.4rem !important;
        font-weight: bold !important;
        text-align: center !important;
        padding: 0.5rem 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        border-bottom: 2px solid #000000 !important;
        margin-bottom: 0.5rem !important;
    }
    
    body.printing-active .btn-print-location,
    body.printing-active .btn-add-shift-inline {
        display: none !important;
    }
    
    body.printing-active .roster-columns-wrapper {
        display: grid !important;
        grid-template-columns: repeat(6, 1fr) !important; /* Force 6 days in one row for landscape A4 */
        gap: 0 !important; /* Touch borders to make unified grid cells */
        width: 100% !important;
        border-top: 2px solid #000000 !important;
        border-left: 2px solid #000000 !important;
        margin-top: 0.5rem !important;
    }
    
    body.printing-active .roster-day-column {
        min-height: 480px !important;
        border-right: 2px solid #000000 !important;
        border-bottom: 2px solid #000000 !important;
        border-radius: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    body.printing-active .roster-day-header {
        border: none !important;
        border-bottom: 1px solid #000000 !important;
        border-radius: 0 !important;
        background-color: #f1f5f9 !important;
        padding: 6px !important;
        text-align: center !important;
    }
    
    body.printing-active .roster-day-header .day-title {
        color: #000000 !important;
        font-weight: bold !important;
        font-size: 0.95rem !important;
        display: block !important;
    }
    
    body.printing-active .roster-day-header .day-date {
        color: #4a5568 !important;
        font-size: 0.8rem !important;
        display: block !important;
    }
    
    body.printing-active .roster-shifts-list {
        border: none !important;
        border-radius: 0 !important;
        background-color: #ffffff !important;
        padding: 6px !important;
        flex-grow: 1 !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 6px !important;
    }
    
    body.printing-active .roster-shift-card {
        box-shadow: none !important;
        border: 1px solid #718096 !important;
        background-color: #ffffff !important;
        border-radius: 4px !important;
        margin-bottom: 0 !important;
        padding: 6px !important;
    }
    
    body.printing-active .roster-shift-card-header {
        font-size: 0.75rem !important;
        font-weight: bold !important;
        color: #000000 !important;
        border-bottom: 1px solid #e2e8f0 !important;
        padding-bottom: 2px !important;
        margin-bottom: 4px !important;
    }
    
    body.printing-active .roster-shift-card-body {
        font-size: 0.75rem !important;
        color: #000000 !important;
    }
}

/* Mobile Stacking & Responsiveness (max-width: 991px) */
@media (max-width: 991px) {
    /* Stack Grid Layout Columns on Mobile & Tablet */
    .grid-3, .grid-2 {
        grid-template-columns: 1fr !important;
    }
    .col-span-2 {
        grid-column: span 1 / span 1 !important;
    }
    
    /* Table optimizations for smaller devices */
    .table th, .table td {
        white-space: nowrap !important;
        padding: 0.5rem 0.75rem !important;
    }
    
    /* Wrap navigation menu on smaller screens to prevent header blowout */
    .header-nav {
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: 0.5rem 1rem !important;
        width: 100% !important;
    }

    /* Location Title Bar Wrap on Mobile/Tablet */
    .location-title-bar {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
        padding: 0.75rem 1rem !important;
        font-size: 0.85rem !important;
    }
    .location-title-bar .btn-print-location,
    .location-title-bar .btn-add-shift-inline {
        margin-left: 0 !important;
        width: 100% !important;
        display: block !important;
        text-align: center !important;
    }

    /* Login Card Adaptations */
    .login-card {
        padding: 1.5rem !important;
        width: calc(100% - 2rem) !important;
        margin: 1rem !important;
    }

    /* Vacation Stats stacking */
    .vacation-stats {
        flex-direction: column !important;
        gap: 0.75rem !important;
    }
}

/* Mobile Stacking & Responsiveness (max-width: 768px) */
@media (max-width: 768px) {
    html, body {
        max-width: 100% !important;
        overflow-x: hidden !important;
    }

    .app-container {
        max-width: 100% !important;
        overflow-x: hidden !important;
    }

    /* Main App Header & Nav */
    .app-header {
        flex-direction: column !important;
        align-items: center !important;
        padding: 0.75rem 1rem !important;
        gap: 0.75rem !important;
        position: relative !important; /* Avoid sticky behavior consuming too much screen space on phones */
        width: 100% !important;
    }
    
    .header-logo {
        text-align: center !important;
    }
    
    .header-nav {
        width: 100% !important;
        justify-content: center !important;
        gap: 1rem !important;
    }
    
    .header-profile {
        width: 100% !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }
    
    .profile-name {
        margin-right: 0 !important;
        width: 100% !important;
        text-align: center !important;
        margin-bottom: 0.25rem !important;
    }
    
    /* Main Content Views */
    .app-main {
        padding: 1rem 0.5rem !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Tabs Bar Horizontal Scroll */
    .tabs {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
        white-space: nowrap !important;
        -webkit-overflow-scrolling: touch !important;
        gap: 0.25rem !important;
        width: 100% !important;
        padding-bottom: 5px !important;
    }
    .tab-btn {
        flex: 0 0 auto !important;
        padding: 0.5rem 1rem !important;
        font-size: 0.85rem !important;
    }
    
    /* Wrap Admin tabs instead of scrolling on mobile */
    #view-admin .tabs {
        flex-wrap: wrap !important;
        white-space: normal !important;
        overflow-x: visible !important;
        gap: 0.5rem !important;
    }
    #view-admin .tab-btn {
        flex: 1 1 auto !important;
        text-align: center !important;
        font-size: 0.8rem !important;
        padding: 0.4rem 0.6rem !important;
    }
    
    /* Section headers & button controls */
    .section-header {
        flex-direction: column !important;
        align-items: center !important;
        text-align: center !important;
        gap: 0.75rem !important;
        width: 100% !important;
    }
    
    .header-actions {
        width: 100% !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }
    
    .date-controls {
        width: 100% !important;
        justify-content: center !important;
    }
    
    .version-control {
        width: 100% !important;
        justify-content: center !important;
        margin-right: 0 !important;
        margin-bottom: 0.25rem !important;
    }
    
    /* Card Padding Optimizations */
    .card-header {
        padding: 1rem !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.5rem !important;
    }
    .card-body {
        padding: 1rem !important;
    }

    /* Modal Sizing on Mobile */
    .modal-content {
        width: calc(100% - 1.5rem) !important;
        margin: 0.75rem !important;
        padding: 1rem !important;
    }

    /* Roster Grid Stacking */
    .roster-columns-wrapper {
        display: flex !important;
        flex-direction: column !important;
        width: 100% !important;
        gap: 1rem !important;
    }
    
    .roster-day-column {
        min-height: auto !important;
        border-right: 0 !important;
        border-bottom: 2px solid var(--border-color) !important;
        padding-bottom: 0.5rem !important;
    }
    
    .roster-day-column:last-child {
        border-bottom: 0 !important;
    }
    
    .roster-day-header {
        border-radius: 4px 4px 0 0 !important;
        border: 1px solid var(--border-color) !important;
        border-bottom: 0 !important;
        background-color: var(--border-color) !important;
        font-weight: 700 !important;
    }
    
    .roster-shifts-list {
        border: 1px solid var(--border-color) !important;
        border-top: 0 !important;
        border-radius: 0 0 4px 4px !important;
        background-color: var(--card-bg) !important;
    }
    

}

/* Print Styling for Employee Monthly PDF */
#monthly-pdf-print-area {
    display: none;
}

@media print {
    /* Set page portrait orientation for this specific print target */
    body.printing-employee-monthly {
        page: portrait-page;
        background: #fff !important;
        color: #000 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    body.printing-employee-monthly .app-container,
    body.printing-employee-monthly .modal {
        display: none !important;
    }
    
    body.printing-employee-monthly #monthly-pdf-print-area {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        background: #fff !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    body.printing-inventory-active {
        background: #fff !important;
        color: #000 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    body.printing-inventory-active .app-container,
    body.printing-inventory-active .modal {
        display: none !important;
    }
    
    body.printing-inventory-active #monthly-pdf-print-area {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        background: #fff !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}

/* Activity Logs Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 0.25rem;
    text-align: center;
}
.badge-success {
    background-color: #def7ec;
    color: #03543f;
}
.badge-danger {
    background-color: #fde8e8;
    color: #9b1c1c;
}
.badge-warning {
    background-color: #fdf6b2;
    color: #723b10;
}
.badge-info {
    background-color: #e1effe;
    color: #1e429f;
}
.badge-secondary {
    background-color: #f3f4f6;
    color: #374151;
}

/* Signature Pad Canvas touch behavior */
#employee-signature-canvas, #admin-signature-canvas {
    touch-action: none;
    cursor: crosshair;
}

/* Global Modal Layout Fix for Monthly PDF */
#modal-monthly-pdf .modal-content {
    max-height: 90vh !important;
    display: flex !important;
    flex-direction: column !important;
}

#modal-monthly-pdf .modal-body {
    flex: 1 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding-right: 0.5rem !important;
}

.modal-close {
    font-size: 1.75rem !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    color: var(--text-muted) !important;
    padding: 0.5rem !important;
    margin: -0.5rem !important;
}

/* Scrollable Modals on Mobile Viewports */
@media (max-width: 768px) {
    .modal {
        align-items: flex-start !important;
        overflow-y: auto !important;
        padding: 1rem 0 6rem 0 !important;
    }
    
    #modal-monthly-pdf .modal-content {
        max-height: 85vh !important;
        margin: 0.5rem !important;
        width: calc(100% - 1rem) !important;
    }
    
    #modal-monthly-pdf .modal-footer {
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: 0.5rem !important;
        padding-top: 0.75rem !important;
        border-top: 1px solid var(--border-color) !important;
    }
    
    #modal-monthly-pdf .modal-footer button {
        width: 100% !important;
        margin: 0 !important;
    }
    
    /* Prevent iOS auto-zoom on inputs/selects */
    .form-control, input, select, textarea {
        font-size: 16px !important;
    }
    
    /* Responsive Employee List Table */
    #admin-employees-list,
    #admin-employees-list tr,
    #admin-employees-list td {
        display: block !important;
        width: 100% !important;
    }
    
    #admin-tab-employees table thead {
        display: none !important; /* Hide column headers on mobile */
    }
    
    #admin-employees-list tr {
        border: 1px solid var(--border-color) !important;
        border-radius: 8px !important;
        padding: 0.75rem !important;
        margin-bottom: 1rem !important;
        background-color: var(--card-bg) !important;
        box-shadow: var(--shadow) !important;
    }
    
    #admin-employees-list td {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 0.35rem 0 !important;
        border: none !important;
        font-size: 0.85rem !important;
    }
    
    #admin-employees-list td::before {
        content: attr(data-label) !important;
        font-weight: 600 !important;
        color: var(--text-muted) !important;
    }
    
    #admin-employees-list td.actions-td {
        justify-content: flex-start !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
        margin-top: 0.5rem !important;
        padding-top: 0.5rem !important;
        border-top: 1px solid var(--border-color) !important;
    }
    
    #admin-employees-list td.actions-td::before {
        display: none !important;
    }
    
    #admin-employees-list td.actions-td button {
        flex: 1 1 calc(50% - 0.5rem) !important;
        margin: 0 !important;
        font-size: 0.75rem !important;
        padding: 0.4rem 0.5rem !important;
    }
    
    #admin-employees-list td.actions-td button.btn-monthly-pdf {
        flex: 1 1 100% !important; /* PDF button gets full width for easy clicking */
        font-weight: bold !important;
    }
}

/* Announcements Layout */
.announcements-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 1rem;
}

@media (max-width: 991px) {
    .announcements-layout {
        grid-template-columns: 1fr !important;
    }
}

.announcement-item-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    background: var(--card-bg);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.announcement-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.announcement-item-card.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05); /* Indigo tint matching primary */
    box-shadow: 0 0 0 1px var(--primary-color);
}

.announcement-item-card.unread {
    border-left: 4px solid var(--accent-color);
}

.announcement-item-card h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 600;
}

.announcement-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.announcement-item-snippet {
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.attachment-preview-box {
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.02);
    max-width: 100%;
}

.attachment-preview-box img {
    max-height: 300px;
    max-width: 100%;
    object-fit: contain;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.attachment-preview-box img:hover {
    opacity: 0.9;
}

.attachment-file-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.2s ease;
}

.attachment-file-link:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* KB Embedded Images & Placeholder Code Badge styling */
.kb-embedded-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    display: block;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s ease;
}
.kb-embedded-image:hover {
    transform: scale(1.015);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}
.copy-placeholder-btn {
    font-family: Consolas, Monaco, monospace;
    font-size: 0.8rem;
    background: var(--border-color);
    padding: 2px 6px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}
.copy-placeholder-btn:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
}


.announcement-emp-checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.announcement-emp-checkbox-item:hover {
    background: rgba(0, 0, 0, 0.05);
}

/* Knowledge Base Layout */
.kb-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 1rem;
}

@media (max-width: 991px) {
    .kb-layout {
        grid-template-columns: 1fr !important;
    }
}

.kb-item-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    background: var(--card-bg);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kb-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.kb-item-card.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.kb-item-card h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 600;
}

.kb-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.kb-item-snippet {
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.kb-category-tag {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    text-transform: uppercase;
}

/* Comment Thread Styles */
.kb-comments-section {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.kb-comments-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.kb-comment-bubble {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kb-comment-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.kb-comment-text {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.4;
    white-space: pre-wrap;
}

/* Events (Termine & Veranstaltungen) Layout */
.events-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 1rem;
}

@media (max-width: 991px) {
    .events-layout {
        grid-template-columns: 1fr !important;
    }
}

.event-item-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    background: var(--card-bg);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.event-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.event-item-card.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.event-item-card h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 600;
}

.event-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.event-item-snippet {
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.event-badge-obligatory {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    text-transform: uppercase;
}

.event-badge-voluntary {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(107, 114, 128, 0.1);
    color: #4b5563;
    text-transform: uppercase;
}

.event-badge-confirmed {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.event-badge-pending {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    background: rgba(234, 179, 8, 0.1);
    color: #ca8a04;
}

.event-confirmations-section {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.event-confirmations-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.event-confirmation-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
}

.roster-event-item {
    background: rgba(99, 102, 241, 0.08);
    border-left: 3px solid var(--primary-color);
    padding: 0.35rem 0.5rem;
    border-radius: 0 4px 4px 0;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

.roster-event-item:hover {
    background: rgba(99, 102, 241, 0.15);
}

.event-image-preview {
    max-width: 100%;
    max-height: 350px;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 1.5rem;
    display: block;
    background: #f8fafc;
    border: 1px solid var(--border-color);
}

.event-employee-checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s ease;
}

.event-employee-checkbox-row:hover {
    background: rgba(0, 0, 0, 0.03);
}

.event-employee-checkbox-row input {
    cursor: pointer;
}

/* Contacts (Kontakte) Section Styles */
.contacts-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 1rem;
}

@media (max-width: 991px) {
    .contacts-layout {
        grid-template-columns: 1fr !important;
    }
}

.contact-item-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    background: var(--card-bg);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.contact-item-card.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.contact-item-card h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 600;
}

.contact-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.contact-item-company {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* QR Code Container styling inside details card */
.contact-detail-grid {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .contact-detail-grid {
        grid-template-columns: 1fr;
    }
}

.contact-qrcode-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--border-color);
    padding: 1rem;
    border-radius: 6px;
    background: #f8fafc;
    text-align: center;
}

.contact-qrcode-wrapper p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    margin-bottom: 0;
}

/* OCR Scanner and Helper Styles */
#modal-scan-card .btn-secondary.active {
    background: var(--primary-color) !important;
    color: #fff !important;
    border-color: var(--primary-color) !important;
}

#scan-upload-area:hover {
    border-color: var(--primary-color) !important;
    background: rgba(30, 27, 75, 0.02);
}

.ocr-line-item:hover {
    background: var(--border-color) !important;
    color: var(--primary-color) !important;
    transform: translateX(3px);
}