/**
 * SchaffiX ProjektHub - Custom CSS
 * 
 * Benutzerdefinierte Styles für die Anwendung
 */

/* === Modernes Farbschema === */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #06b6d4;
    --accent: #f59e42;
    --background: #f7fafc;
    --card-bg: #fff;
    --text: #1a202c;
    --muted: #64748b;
    --border: #e2e8f0;
}

body, .container, .card, .card-body {
    color: var(--text) !important;
    background-color: var(--background) !important;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--primary) !important;
}

.navbar, .navbar-dark.bg-primary {
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%) !important;
    color: #fff !important;
}

.navbar .nav-link, .navbar .navbar-brand {
    color: #fff !important;
}

.navbar .nav-link.active, .navbar .nav-link:focus, .navbar .nav-link:hover {
    color: var(--accent) !important;
}

footer {
    background: var(--primary-dark) !important;
    color: #e0e0e0 !important;
}

footer a {
    color: var(--secondary) !important;
}

.card {
    background: var(--card-bg) !important;
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
    box-shadow: 0 2px 12px rgba(37,99,235,0.06);
}

.btn, .btn-primary, .btn-outline-primary {
    color: #fff !important;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
    border: none !important;
}

.btn-primary:hover, .btn-outline-primary:hover {
    background: var(--primary-dark) !important;
    color: #fff !important;
}

.btn-outline-secondary {
    color: var(--primary) !important;
    background: #fff !important;
    border: 1px solid var(--primary) !important;
}

a, .text-link {
    color: var(--primary) !important;
    text-decoration: underline;
}

a:hover, .text-link:hover {
    color: var(--accent) !important;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.alert-info {
    background-color: #e0f2fe;
    color: #0369a1;
}

.table thead th {
    background-color: var(--primary);
    color: #fff;
}

.table-hover tbody tr:hover {
    background-color: #e0e7ff;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #181a1b;
        --card-bg: #23272b;
        --text: #f7fafc;
        --muted: #a0aec0;
        --border: #334155;
    }
    body, .container, .card, .card-body {
        background-color: var(--background) !important;
        color: var(--text) !important;
    }
    h1, h2, h3, h4, h5, h6 {
        color: var(--secondary) !important;
    }
    .navbar, .navbar-dark.bg-primary {
        background: linear-gradient(90deg, var(--primary-dark) 0%, var(--secondary) 100%) !important;
        color: #fff !important;
    }
    .navbar .nav-link, .navbar .navbar-brand {
        color: #fff !important;
    }
    .navbar .nav-link.active, .navbar .nav-link:focus, .navbar .nav-link:hover {
        color: var(--accent) !important;
    }
    footer {
        background: #111827 !important;
        color: #e0e0e0 !important;
    }
    .card {
        background: var(--card-bg) !important;
        color: var(--text) !important;
        border: 1px solid var(--border) !important;
        box-shadow: 0 2px 12px rgba(6,182,212,0.08);
    }
    .btn, .btn-primary, .btn-outline-primary {
        color: #fff !important;
        background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
        border: none !important;
    }
    .btn-primary:hover, .btn-outline-primary:hover {
        background: var(--secondary) !important;
        color: #fff !important;
    }
    .btn-outline-secondary {
        color: var(--secondary) !important;
        background: #23272b !important;
        border: 1px solid var(--secondary) !important;
    }
    a, .text-link {
        color: var(--secondary) !important;
    }
    a:hover, .text-link:hover {
        color: var(--accent) !important;
    }
    .table thead th {
        background-color: var(--primary-dark);
        color: #fff;
    }
    .table-hover tbody tr:hover {
        background-color: #334155;
    }
}

/* Allgemeine Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* Navigation */
.navbar-brand img {
    filter: brightness(0) invert(1);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Karten-Hover-Effekte */
.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Projekt-Karten */
.project-card {
    height: 100%;
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.project-card .card-img-top {
    height: 200px;
    object-fit: cover;
    background: linear-gradient(45deg, #f8f9fa, #e9ecef);
}

.project-card .card-body {
    display: flex;
    flex-direction: column;
}

.project-card .card-text {
    flex-grow: 1;
}

/* Badge-Styles */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}

.badge.bg-light {
    color: #495057 !important;
    border: 1px solid #dee2e6;
}

/* Form-Styles */
.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: border-color 0.2s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Alert-Styles */
.alert {
    border-radius: 8px;
    border: none;
}

/* Pagination */
.pagination .page-link {
    border-radius: 6px;
    margin: 0 2px;
    border: none;
    color: #667eea;
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

/* Footer */
footer {
    background: #23272b !important;
    color: #e0e0e0 !important;
}

footer a {
    color: #aab4f7 !important;
}

/* Admin-Bereich */
.admin-sidebar {
    background: #f8f9fa;
    border-right: 1px solid #dee2e6;
}

.admin-nav .nav-link {
    border-radius: 8px;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease-in-out;
}

.admin-nav .nav-link:hover {
    background-color: #e9ecef;
}

.admin-nav .nav-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Dashboard-Karten */
.dashboard-card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
}

.dashboard-card .card-body {
    padding: 1.5rem;
}

/* Statistik-Karten */
.stats-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
}

.stats-card.success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
}

.stats-card.info {
    background: linear-gradient(135deg, #17a2b8 0%, #6f42c1 100%);
}

.stats-card.warning {
    background: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
}

/* Tabelle-Styles */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
}

.table-hover tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
}

/* Upload-Bereich */
.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.2s ease-in-out;
}

.upload-area:hover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.05);
}

.upload-area.dragover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.1);
}

/* Screenshot-Galerie */
.screenshot-gallery img {
    border-radius: 8px;
    transition: transform 0.2s ease-in-out;
    cursor: pointer;
}

.screenshot-gallery img:hover {
    transform: scale(1.05);
}

/* QR-Code */
.qr-code {
    border-radius: 8px;
    padding: 1rem;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Timeline */
.timeline {
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #dee2e6;
}

.timeline-item {
    position: relative;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}

/* Loading-Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .stats-card {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn-group-sm .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar, .footer, .btn, .no-print {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* 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: 0;
}

/* Focus Styles */
.btn:focus, .form-control:focus, .form-select:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .card {
        border: 2px solid #000;
    }
    
    .form-control, .form-select {
        border: 2px solid #000;
    }
}

/* Lesbarkeit für leere Projektlisten und Hinweise */
.text-muted, .text-center .text-muted, .no-projects, .empty-message, .project-list-empty, .text-muted.mt-3 {
    color: #333 !important;
    background: transparent !important;
    opacity: 1 !important;
    font-weight: 500;
}

/* Speziell für den Hinweisbereich bei leeren Projekten */
.text-center.py-5, .text-center .py-5 {
    background: #f8f9fa !important;
    color: #222 !important;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

/* Icon bei leerer Liste besser sichtbar */
.text-center.py-5 .bi-search {
    color: #667eea !important;
    opacity: 1 !important;
}

/* Dark Mode explizit für Hinweisbereiche */
@media (prefers-color-scheme: dark) {
    .text-center.py-5, .text-center .py-5 {
        background: #23272b !important;
        color: #fff !important;
    }
    .text-muted, .text-center .text-muted, .no-projects, .empty-message, .project-list-empty, .text-muted.mt-3 {
        color: #e0e0e0 !important;
    }
    .text-center.py-5 .bi-search {
        color: #aab4f7 !important;
    }
}