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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.header .logo {
    max-width: 300px;
    max-height: 120px;
    height: auto;
    width: auto;
    margin-bottom: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.subtitle {
    font-size: 1.1em;
    opacity: 0.9;
}

/* Navigation */
.nav-tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #e9ecef;
}

.nav-tab {
    flex: 1;
    padding: 15px 20px;
    text-align: center;
    text-decoration: none;
    color: #495057;
    font-weight: 500;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.nav-tab:hover {
    background: #e9ecef;
    color: #667eea;
}

.nav-tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background: white;
}

/* Main Content */
.main-content {
    padding: 30px;
}

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

.section-header h2 {
    color: #2c3e50;
    font-size: 1.8em;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9em;
}

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

.exam-card {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s;
}

.exam-card:hover {
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.exam-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e9ecef;
}

.exam-header h3 {
    color: #2c3e50;
    font-size: 1.3em;
}

.exam-info {
    margin-bottom: 15px;
}

.exam-info p {
    margin: 8px 0;
    color: #6c757d;
    font-size: 0.9em;
}

.exam-info strong {
    color: #495057;
}

.mono {
    font-family: 'Courier New', monospace;
    background: #f8f9fa;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85em;
}

/* Exam ID Container - Clicável para copiar */
.exam-id-container {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
    user-select: none;
    position: relative;
}

.exam-id-container:hover {
    background: #e7f3ff;
    border: 1px solid #667eea;
}

.exam-id-container:hover .copy-icon {
    opacity: 1;
    transform: scale(1.1);
}

.copy-icon {
    opacity: 0;
    font-size: 0.9em;
    transition: all 0.2s;
}

.exam-id-container.copied {
    background: #d4edda;
    border-color: #28a745;
}

.exam-id-container.copied .exam-id {
    color: #155724;
    font-weight: 600;
}

/* Tooltip para mostrar ID completo */
.id-tooltip-active {
    position: absolute;
    background: #2c3e50;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    z-index: 10000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    max-width: 90vw;
    word-break: break-all;
    pointer-events: none;
    animation: tooltipFadeIn 0.2s ease-out;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mensagem de sucesso ao copiar */
.copy-success-message {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #28a745;
    color: white;
    padding: 12px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 10001;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease-out;
}

.copy-success-message.show {
    opacity: 1;
    transform: translateY(0);
}

.exam-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-warning {
    background: #ffc107;
    color: #000;
}

.badge-info {
    background: #17a2b8;
    color: white;
}

.badge-success {
    background: #28a745;
    color: white;
}

.badge-danger {
    background: #dc3545;
    color: white;
}

/* Form */
.exam-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-help {
    display: block;
    margin-top: 5px;
    color: #6c757d;
    font-size: 0.85em;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
}

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

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
}

.empty-state p {
    font-size: 1.2em;
    margin-bottom: 20px;
}

/* Text Utilities */
.text-muted {
    color: #6c757d;
}

.text-danger {
    color: #dc3545;
}

/* Responsive */
@media (max-width: 768px) {
    .exams-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}