/* Variables CSS */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color), #34495e);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

header h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
}

nav {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 5px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

nav a:hover, nav a.active {
    background: rgba(255, 255, 255, 0.2);
}

/* Main Content */
main {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

/* Documents Grid */
.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.document-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    background: white;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.document-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.document-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.document-ref {
    background: var(--light-color);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--dark-color);
}

.document-content p {
    margin-bottom: 0.5rem;
}

.document-excerpt {
    color: #666;
    font-size: 0.95rem;
    margin-top: 1rem;
}

.document-actions {
    display: flex;
    gap: 10px;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Forms */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

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

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: #d5dbdb;
}

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

.btn-success:hover {
    background: #219653;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

/* Document View */
.document-view {
    background: white;
    padding: 2rem;
    border-radius: 8px;
}

.document-header-view {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.document-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.badge {
    background: var(--light-color);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
}

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

.cabinet-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.document-body {
    line-height: 1.8;
    margin-bottom: 2rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: #fafafa;
}

.qr-code-section {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
}

.qr-code-image {
    max-width: 200px;
    height: auto;
    margin: 1rem auto;
    padding: 10px;
    background: white;
    border: 1px solid var(--border-color);
}

.qr-info {
    color: #666;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.document-actions-view {
    display: flex;
    gap: 15px;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Verification Page */
.verification-container {
    max-width: 800px;
}

.verification-card {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.verification-icon {
    margin-bottom: 2rem;
}

.verification-icon .valid {
    color: var(--success-color);
}

.verification-icon .invalid {
    color: var(--danger-color);
}

.verification-icon .tampered {
    color: var(--warning-color);
}

.verification-status h2 {
    margin-bottom: 1rem;
}

.verification-status .valid {
    color: var(--success-color);
}

.verification-status .invalid {
    color: var(--danger-color);
}

.verification-status .tampered {
    color: var(--warning-color);
}

.verification-message {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

.document-verification-details {
    text-align: left;
    margin: 2rem 0;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 1rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: white;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.verification-hash {
    margin-top: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.verification-hash code {
    font-family: 'Courier New', monospace;
    color: var(--secondary-color);
    word-break: break-all;
}

.verification-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 2rem;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, var(--primary-color), #34495e);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 10px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

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

.login-header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #666;
}

.login-form {
    margin-bottom: 1.5rem;
}

.login-footer {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.empty-state i {
    margin-bottom: 1rem;
    color: var(--border-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 1rem;
    color: #666;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .documents-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .document-actions-view {
        flex-direction: column;
    }
    
    .verification-actions {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    nav {
        flex-direction: column;
    }
}