/**
 * Baustellenmappe - Soldach GmbH
 * Mobile-First CSS
 * 
 * Datei: /baustellenmappe/assets/css/style.css
 */

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
    /* Farben - Soldach Corporate */
    --color-primary: #1a7f7f;
    --color-primary-dark: #156666;
    --color-primary-light: #2aa3a3;
    --color-secondary: #e8a54b;
    --color-secondary-dark: #d4923a;
    
    /* Grautöne */
    --color-bg: #f5f7fa;
    --color-white: #ffffff;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Status-Farben */
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #17a2b8;
    
    /* Abstände */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Schriften */
    --font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    
    /* Radien */
    --border-radius-sm: 4px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Schatten */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-gray-800);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* ============================================================
   HEADER
   ============================================================ */
.app-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    color: var(--color-white);
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.logo-slogan {
    font-size: var(--font-size-xs);
    opacity: 0.9;
}

.user-info {
    display: none;
    flex-direction: column;
    align-items: flex-end;
    margin-right: var(--spacing-md);
}

.user-name {
    font-weight: 600;
}

.user-role {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* Mobile Menu Toggle */
.menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.main-nav {
    background: var(--color-white);
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
}

.main-nav.open {
    max-height: 500px;
}

.nav-container {
    display: flex;
    flex-direction: column;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-200);
    transition: var(--transition-fast);
}

.nav-item:hover,
.nav-item.active {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.nav-icon {
    font-size: var(--font-size-lg);
}

.nav-logout {
    color: var(--color-danger);
}

.nav-logout:hover {
    background: #fff5f5;
}

/* ============================================================
   REGEL BANNER
   ============================================================ */
.regel-banner {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-gray-900);
}

.regel-container {
    max-width: 1200px;
    margin: 0 auto;
    font-size: var(--font-size-xs);
}

.regel-de, .regel-ro {
    margin: var(--spacing-xs) 0;
}

.regel-banner strong {
    color: var(--color-gray-900);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    flex: 1;
    padding: var(--spacing-md);
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* ============================================================
   FLASH MESSAGES
   ============================================================ */
.flash-message {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.flash-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.flash-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.flash-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.flash-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.flash-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    opacity: 0.5;
    padding: 0 var(--spacing-sm);
}

.flash-close:hover {
    opacity: 1;
}

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

.card-header {
    background: var(--color-gray-100);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-header h2,
.card-header h3 {
    font-size: var(--font-size-lg);
    color: var(--color-gray-800);
    margin: 0;
}

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

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

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

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-700);
}

.form-label-bilingual {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    background: var(--color-white);
    transition: var(--transition-fast);
    -webkit-appearance: none;
    appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 127, 127, 0.1);
}

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

.form-control.error {
    border-color: var(--color-danger);
}

select.form-control {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5rem;
    padding-right: 2.5rem;
}

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

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-gray-100);
    border-radius: var(--border-radius-sm);
}

.checkbox-item input[type="checkbox"] {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.checkbox-item label {
    flex: 1;
    cursor: pointer;
}

.checkbox-schweisser {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

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

.btn-secondary {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-gray-300);
}

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

.btn-success:hover:not(:disabled) {
    background: #218838;
}

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

.btn-danger:hover:not(:disabled) {
    background: #c82333;
}

.btn-warning {
    background: var(--color-warning);
    color: var(--color-gray-900);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    min-height: 56px;
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================================
   TABLES
   ============================================================ */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

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

.table th {
    background: var(--color-gray-100);
    font-weight: 600;
    color: var(--color-gray-700);
    white-space: nowrap;
}

.table tr:hover {
    background: var(--color-gray-50);
}

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

/* Mobile Table Cards */
@media (max-width: 768px) {
    .table-mobile .table thead {
        display: none;
    }
    
    .table-mobile .table tbody tr {
        display: block;
        margin-bottom: var(--spacing-md);
        padding: var(--spacing-md);
        background: var(--color-white);
        border-radius: var(--border-radius);
        box-shadow: var(--shadow-sm);
    }
    
    .table-mobile .table tbody td {
        display: flex;
        justify-content: space-between;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-gray-100);
    }
    
    .table-mobile .table tbody td:last-child {
        border-bottom: none;
    }
    
    .table-mobile .table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--color-gray-600);
    }
}

/* ============================================================
   PHOTO UPLOAD
   ============================================================ */
.photo-upload {
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    background: var(--color-gray-50);
    transition: var(--transition-fast);
}

.photo-upload:hover,
.photo-upload.dragover {
    border-color: var(--color-primary);
    background: rgba(26, 127, 127, 0.05);
}

.photo-upload-input {
    display: none;
}

.photo-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.photo-upload-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.photo-upload-text {
    color: var(--color-gray-600);
}

.photo-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.photo-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.photo-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-preview-delete {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    width: 24px;
    height: 24px;
    background: var(--color-danger);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1;
}

/* ============================================================
   SIGNATURE PAD
   ============================================================ */
.signature-container {
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.signature-pad {
    width: 100%;
    height: 200px;
    touch-action: none;
    background: var(--color-white);
}

.signature-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-gray-100);
    border-top: 1px solid var(--color-gray-200);
}

/* ============================================================
   STEPPER / WIZARD
   ============================================================ */
.stepper {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-sm);
}

.stepper-item {
    flex: 1;
    text-align: center;
    position: relative;
}

.stepper-item::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--color-gray-300);
}

.stepper-item:last-child::before {
    display: none;
}

.stepper-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-gray-300);
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    position: relative;
    z-index: 1;
}

.stepper-item.active .stepper-number {
    background: var(--color-primary);
}

.stepper-item.completed .stepper-number {
    background: var(--color-success);
}

.stepper-item.completed::before {
    background: var(--color-success);
}

.stepper-label {
    display: none;
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

/* ============================================================
   STATUS BADGES
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 100px;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* ============================================================
   STATS GRID
   ============================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ============================================================
   FOOTER
   ============================================================ */
.app-footer {
    background: var(--color-gray-800);
    color: var(--color-gray-400);
    padding: var(--spacing-md);
    text-align: center;
    font-size: var(--font-size-sm);
    margin-top: auto;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.login-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-xl);
}

.login-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo h1 {
    color: var(--color-primary);
    font-size: var(--font-size-xxl);
}

.login-logo p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-gray-600); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }

/* ============================================================
   DESKTOP STYLES
   ============================================================ */
@media (min-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-lg);
    }
    
    .user-info {
        display: flex;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .main-nav {
        max-height: none;
        overflow: visible;
    }
    
    .nav-container {
        flex-direction: row;
        padding: 0 var(--spacing-lg);
    }
    
    .nav-item {
        border-bottom: none;
        border-radius: var(--border-radius-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav-logout {
        margin-left: auto;
    }
    
    .regel-container {
        display: flex;
        gap: var(--spacing-lg);
    }
    
    .regel-de, .regel-ro {
        flex: 1;
    }
    
    .main-content {
        padding: var(--spacing-xl);
    }
    
    .stepper-label {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .btn-group {
        justify-content: flex-start;
    }
    
    .form-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .form-row-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .photo-preview {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
    .app-header,
    .main-nav,
    .regel-banner,
    .app-footer,
    .btn,
    .flash-message {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
}