:root {
    --primary: #0A7EA4;
    --primary-dark: #085E7D;
    --secondary: #10B981;
    --accent: #F59E0B;
    --danger: #EF4444;
    --bg-main: #F8FAFC;
    --bg-card: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Söhne', 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Startseite Styles */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 120px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h60v60H0z" fill="none"/><path d="M30 15l7.5 15h15L37.5 45 30 60l-7.5-15H7.5L22.5 30z" fill="rgba(255,255,255,0.05)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.btn {
    padding: 15px 35px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

/* Features Section */
.features {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary);
}

/* Reviews Section */
.reviews {
    background: var(--bg-card);
    padding: 80px 20px;
    border-top: 1px solid var(--border);
}

.reviews h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.review-card {
    background: var(--bg-main);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.review-stars {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.review-text {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.review-author {
    font-weight: 600;
    color: var(--text-primary);
}

/* Navigation */
.navbar {
    background: var(--bg-card);
    padding: 20px 40px;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.navbar-brand img {
    height: 40px;
    width: auto;
}

.navbar-brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.sidebar-brand img {
    height: 35px;
    width: auto;
    margin-bottom: 10px;
}

.navbar-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.navbar-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s;
}

.navbar-menu a:hover {
    color: var(--primary);
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-card);
    padding: 30px 0;
    box-shadow: var(--shadow-sm);
}

.sidebar-brand {
    padding: 0 30px;
    margin-bottom: 40px;
}

.sidebar-brand h2 {
    color: var(--primary);
    font-size: 1.5rem;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li a {
    display: block;
    padding: 15px 30px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background: var(--bg-main);
    color: var(--primary);
    border-left-color: var(--primary);
}

.main-content {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
}

.content-header {
    margin-bottom: 40px;
}

.content-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.content-header p {
    color: var(--text-secondary);
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
    border: 1px solid var(--border);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.project-card,
.station-card,
.room-card {
    background: var(--bg-main);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: all 0.3s;
    cursor: pointer;
}

.project-card:hover,
.station-card:hover,
.room-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.project-card h3,
.station-card h3,
.room-card h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

.card-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn-small {
    padding: 8px 15px;
    font-size: 0.875rem;
}

/* Forms */
.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(10, 126, 164, 0.1);
}

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

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

.auth-card {
    background: var(--bg-card);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary);
    font-size: 2rem;
}

.auth-link {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
}

.auth-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: var(--bg-main);
}

table th,
table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

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

table tbody tr:hover {
    background: var(--bg-main);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border-left: 4px solid var(--secondary);
}

.alert-error {
    background: #FEE2E2;
    color: #991B1B;
    border-left: 4px solid var(--danger);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border);
}

.tab-button {
    padding: 15px 30px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-button:hover {
    color: var(--primary);
    background: var(--bg-main);
}

.tab-button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.report-item {
    background: var(--bg-main);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary);
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.report-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.report-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.report-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.report-badge.progress {
    background: #DBEAFE;
    color: #1E40AF;
}

.report-badge.finding {
    background: #FEF3C7;
    color: #92400E;
}

.report-content {
    color: var(--text-primary);
    line-height: 1.8;
    white-space: pre-wrap;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .dashboard-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .auth-card {
        padding: 30px;
    }
}

/* Button variants for cards/white backgrounds */
.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #DC2626;
    transform: translateY(-2px);
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
}