/**
 * Schulungsplattform - Hauptstylesheet
 * Design inspiriert von fluesterbox.de
 */

:root {
    /* Hauptfarben - Fluesterbox Design */
    --primary: #1a2b4a;
    --primary-dark: #0f1a2e;
    --primary-light: #2a3f66;
    --secondary: #FFBD59;
    --secondary-dark: #f0a830;
    --accent: #CAE8FF;
    
    /* Grautoene */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Status */
    --success: #28a745;
    --warning: #FFBD59;
    --danger: #dc3545;
    --info: #CAE8FF;
    
    /* Sonstiges */
    --white: #ffffff;
    --shadow: 0 2px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
    margin: 0;
    padding: 0;
}

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

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

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 1rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin: 0 0 1rem;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-sm {
    max-width: 600px;
}

.container-md {
    max-width: 800px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

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

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

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

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

.btn-danger:hover {
    background: #c82333;
    color: var(--white);
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

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

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    background: var(--gray-100);
    border-bottom: 1px solid var(--gray-200);
}

.card-header h3 {
    margin: 0;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    background: var(--gray-100);
    border-top: 1px solid var(--gray-200);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(255, 189, 89, 0.2);
}

.form-control::placeholder {
    color: var(--gray-500);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    margin-top: 6px;
    font-size: 0.875rem;
    color: var(--gray-600);
}

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

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
}

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

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

.alert-warning {
    background: rgba(255, 189, 89, 0.2);
    color: #856404;
    border: 1px solid var(--secondary);
}

.alert-info {
    background: rgba(202, 232, 255, 0.4);
    color: var(--primary);
    border: 1px solid var(--accent);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
}

.table th,
.table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    background: var(--gray-100);
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background: rgba(202, 232, 255, 0.2);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.badge-warning {
    background: rgba(255, 189, 89, 0.3);
    color: #856404;
}

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

.badge-info {
    background: rgba(202, 232, 255, 0.5);
    color: var(--primary);
}

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

/* Progress Bar */
.progress {
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--secondary);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-lg {
    height: 20px;
}

.progress-lg .progress-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-dark);
}

/* Header */
.header {
    background: var(--primary);
    color: var(--white);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 70px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo:hover {
    color: var(--white);
}

.logo svg {
    width: 32px;
    height: 32px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 16px;
    color: rgba(255,255,255,0.8);
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(202, 232, 255, 0.2);
    color: var(--white);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--primary-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

/* Sidebar Layout */
.layout {
    display: flex;
    min-height: calc(100vh - 70px);
}

.sidebar {
    width: 260px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    padding: 24px 0;
    flex-shrink: 0;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    margin-bottom: 4px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--gray-700);
    transition: var(--transition);
}

.sidebar-nav a:hover {
    background: rgba(202, 232, 255, 0.3);
    color: var(--primary);
}

.sidebar-nav a.active {
    background: var(--primary);
    color: var(--white);
}

.sidebar-nav svg {
    width: 20px;
    height: 20px;
}

.sidebar-section {
    padding: 16px 24px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.main-content {
    flex: 1;
    padding: 30px;
    background: var(--gray-100);
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.page-title {
    margin: 0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.stat-card-icon.green { background: #d4edda; color: #28a745; }
.stat-card-icon.blue { background: rgba(202, 232, 255, 0.5); color: var(--primary); }
.stat-card-icon.orange { background: rgba(255, 189, 89, 0.3); color: var(--secondary-dark); }
.stat-card-icon.purple { background: #e2d9f3; color: #6f42c1; }

.stat-card-icon svg {
    width: 24px;
    height: 24px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Video Player */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background: #000;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.video-container video,
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Quiz */
.quiz-container {
    max-width: 700px;
    margin: 0 auto;
}

.quiz-question {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.quiz-option:hover {
    border-color: var(--secondary);
    background: rgba(255, 189, 89, 0.05);
}

.quiz-option.selected {
    border-color: var(--secondary);
    background: rgba(255, 189, 89, 0.1);
}

.quiz-option.correct {
    border-color: var(--success);
    background: #d4edda;
}

.quiz-option.incorrect {
    border-color: var(--danger);
    background: #f8d7da;
}

.quiz-option input {
    display: none;
}

.quiz-option-marker {
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray-400);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.quiz-option.selected .quiz-option-marker {
    border-color: var(--secondary);
    background: var(--secondary);
    color: var(--primary-dark);
}

.quiz-option-text {
    flex: 1;
}

/* Module List */
.module-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.module-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.module-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.module-item.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.module-item.completed {
    border-left: 4px solid var(--success);
}

.module-item.current {
    border-left: 4px solid var(--secondary);
}

.module-number {
    width: 40px;
    height: 40px;
    background: var(--gray-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--gray-600);
}

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

.module-item.current .module-number {
    background: var(--secondary);
    color: var(--primary-dark);
}

.module-info {
    flex: 1;
}

.module-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.module-meta {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.module-status {
    font-size: 0.875rem;
}

/* Login/Register Form */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-header {
    padding: 40px;
    text-align: center;
    background: rgba(202, 232, 255, 0.2);
}

.auth-header h1 {
    margin-bottom: 8px;
}

.auth-header p {
    margin: 0;
    color: var(--gray-600);
}

.auth-body {
    padding: 40px;
}

/* Install Wizard */
.install-steps {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
}

.install-step {
    display: flex;
    align-items: center;
    gap: 8px;
}

.install-step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-300);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.install-step.active .install-step-number {
    background: var(--secondary);
    color: var(--primary-dark);
}

.install-step.completed .install-step-number {
    background: var(--success);
}

.install-step-line {
    width: 40px;
    height: 2px;
    background: var(--gray-300);
}

.install-step.completed + .install-step-line {
    background: var(--success);
}

/* Responsive */
@media (max-width: 768px) {
    .layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .sidebar-nav {
        display: flex;
        overflow-x: auto;
        padding: 0 16px;
    }
    
    .sidebar-nav a {
        padding: 12px 16px;
        white-space: nowrap;
    }
    
    .sidebar-section {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .header-inner {
        padding: 0 16px;
    }
    
    .nav {
        display: none;
    }
}

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

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

.hidden { display: none; }