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

:root {
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --border-color: #ddd;
    --error-color: #dc3545;
    --success-color: #28a745;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: var(--white);
    padding: 40px;
    text-align: center;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.logo-container {
    margin-bottom: 20px;
}

.logo {
    max-width: 200px;
    height: auto;
}

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

.subtitle {
    color: var(--text-light);
    font-size: 1rem;
}

/* Main Content */
.main-content {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

/* Form */
.form-section {
    margin-bottom: 40px;
}

.section-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

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

.form-group label.checkbox-container {
    display: flex;
    margin-bottom: 0;
}

.form-group label.required::after {
    content: ' *';
    color: var(--error-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* File Input */
.file-input-wrapper {
    position: relative;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-input-label {
    display: flex;
    align-items: center;
    padding: 12px;
    border: 2px dashed var(--border-color);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.file-input-label:hover {
    border-color: var(--primary-color);
    background: var(--secondary-color);
}

.file-input-text {
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 5px;
    margin-right: 15px;
    font-weight: 600;
}

.file-input-name {
    color: var(--text-light);
}

/* Signature Tabs */
.signature-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-button {
    flex: 1;
    padding: 12px;
    background: var(--secondary-color);
    border: 2px solid var(--border-color);
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s;
}

.tab-button:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

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

.signature-content {
    position: relative;
}

.signature-tab {
    display: none;
}

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

/* Canvas */
#signatureCanvas {
    border: 2px solid var(--border-color);
    border-radius: 5px;
    cursor: crosshair;
    width: 100%;
    max-width: 600px;
    height: 200px;
    background: var(--white);
    display: block;
    margin-bottom: 10px;
}

/* Typed Signature */
#signatureTyped {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    margin-bottom: 15px;
}

.signature-preview {
    padding: 30px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    text-align: center;
    font-family: 'Brush Script MT', cursive;
    font-size: 2.5rem;
    color: var(--primary-color);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--secondary-color);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 14px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    width: 100%;
}

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

.btn-primary:disabled {
    background: var(--border-color);
    cursor: not-allowed;
    transform: none;
}

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

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

/* Form Actions */
.form-actions {
    margin-top: 30px;
}

/* Error Messages */
.error-message {
    display: block;
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 5px;
    min-height: 20px;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: var(--error-color);
}

/* Form Message */
.form-message {
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: 600;
    text-align: center;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-light);
}

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

.footer a:hover {
    text-decoration: underline;
}

/* Loader */
.btn-loader {
    display: inline-block;
}

.btn-loader::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header,
    .main-content {
        padding: 20px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .logo {
        max-width: 150px;
    }

    #signatureCanvas {
        height: 150px;
    }

    .signature-preview {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .signature-tabs {
        flex-direction: column;
    }
}

/* PDF Viewer */
.pdf-viewer-container {
    position: relative;
    width: 100%;
    height: 600px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: #f5f5f5;
    margin-bottom: 20px;
}

#pdfViewer {
    width: 100%;
    height: 100%;
    border: none;
}

.pdf-scroll-indicator {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 102, 204, 0.95), rgba(0, 102, 204, 0.8));
    color: var(--white);
    padding: 15px;
    text-align: center;
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.section-description {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

/* Checkbox customizado */
.checkbox-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    user-select: none;
    padding: 20px;
    background: var(--secondary-color);
    border-radius: 8px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.checkbox-container:hover {
    background: #e9ecef;
    border-color: var(--primary-color);
}

.checkbox-container input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkbox-container input[type="checkbox"]:disabled {
    cursor: not-allowed;
}

.checkbox-container input[type="checkbox"]:disabled ~ .checkbox-label {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkbox-container input[type="checkbox"]:disabled ~ .checkmark {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #f5f5f5;
}

.checkmark {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    width: 32px;
    min-width: 32px;
    max-width: 32px;
    background-color: var(--white);
    border: 3px solid var(--border-color);
    border-radius: 6px;
    flex-shrink: 0;
    transition: all 0.3s;
}

.checkbox-container:hover input:not(:disabled) ~ .checkmark {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 50%;
    top: 50%;
    width: 8px;
    height: 15px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: translate(-50%, -55%) rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-label {
    flex: 1;
    font-size: 1.05rem;
    line-height: 1.5;
    font-weight: 500;
    color: var(--text-color);
    margin: 0;
}

/* PDF Mobile Fallback */
.pdf-mobile-fallback {
    display: none;
    text-align: center;
    padding: 30px;
    background: var(--secondary-color);
    border-radius: 8px;
    margin: 20px 0;
}

.pdf-mobile-fallback p {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--text-color);
}

.btn-open-pdf {
    display: inline-block;
    padding: 14px 28px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-open-pdf:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Responsivo para PDF Viewer */
@media (max-width: 768px) {
    .pdf-viewer-container {
        height: 300px;
    }
    
    .pdf-iframe {
        display: none;
    }
    
    .pdf-mobile-fallback {
        display: block;
    }
    
    .pdf-scroll-indicator {
        font-size: 0.85rem;
        padding: 10px;
    }
}

/* Link de Download do PDF */
.download-link {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 24px;
    background: var(--primary-color);
    color: var(--white) !important;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
}

.download-link:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4);
}

.download-link:active {
    transform: translateY(0);
}

/* Ocultar campo de documento temporariamente */
.form-group:has(#documento) {
    display: none;
}

/* Container de confirmação de leitura do PDF */
.pdf-confirm-container {
    text-align: center;
    margin: 20px 0;
}

.btn-confirm-read {
    padding: 16px 32px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-confirm-read:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.4);
}

.btn-confirm-read:active {
    transform: translateY(0);
}

/* Página de Sucesso */
.success-container {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    width: 100px;
    height: 100px;
    background: var(--success-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin: 0 auto 30px;
    animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.success-container h2 {
    color: var(--success-color);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.success-container > p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.success-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 400px;
    margin: 0 auto 40px;
}

.success-actions .btn-primary,
.success-actions .btn-secondary {
    width: 100%;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.success-info {
    background: var(--secondary-color);
    padding: 30px;
    border-radius: 10px;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}

.success-info p {
    margin-bottom: 15px;
    font-weight: 600;
}

.success-info ul {
    list-style: none;
    padding: 0;
}

.success-info li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.success-info li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

@media (max-width: 768px) {
    .success-container h2 {
        font-size: 1.5rem;
    }
    
    .success-icon {
        width: 80px;
        height: 80px;
        font-size: 48px;
    }
}

/* ===================================
   PDF Viewer Styles
   =================================== */
.pdf-viewer-container {
    margin: 20px 0;
    background: #f5f5f5;
    border-radius: 8px;
    padding: 15px;
    width: 100%;
    height: 650px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pdf-loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 16px;
}

.pdf-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding: 12px;
    background: #e3f2fd;
    border-radius: 5px;
    flex-wrap: wrap;
    gap: 10px;
}

.pdf-info {
    flex: 1;
}

.page-info {
    font-weight: 600;
    color: #1976d2;
    font-size: 14px;
}

.pdf-zoom-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.zoom-btn {
    background: #0066cc;
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.zoom-btn:hover {
    background: #0052a3;
}

.zoom-btn:active {
    transform: scale(0.95);
}

.zoom-btn-reset {
    background: #6c757d;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

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

#zoomLevel {
    font-weight: 600;
    color: #333;
    min-width: 50px;
    text-align: center;
    font-size: 14px;
}

.pdf-scroll-container {
    background: white;
    border-radius: 5px;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    width: 100%;
    flex: 1;
    overflow-y: scroll !important;
    overflow-x: hidden !important;
    box-sizing: border-box;
}

/* Forçar scrollbar sempre visível */
.pdf-scroll-container::-webkit-scrollbar {
    width: 14px;
    background: #f1f1f1;
}

.pdf-scroll-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
    margin: 5px 0;
}

.pdf-scroll-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
    border: 3px solid #f1f1f1;
}

.pdf-scroll-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Firefox */
.pdf-scroll-container {
    scrollbar-width: auto;
    scrollbar-color: #888 #f1f1f1;
}

#pdfPagesContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
    padding-bottom: 40px;
}

#pdfPagesContainer canvas {
    width: 100% !important;
    height: auto !important;
    max-width: 100%;
    display: block;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-radius: 3px;
    margin: 0 auto;
    object-fit: contain;
}

.pdf-scroll-indicator {
    text-align: center;
    margin-top: 15px;
    padding: 12px;
    background: #fff3cd;
    border-radius: 5px;
    color: #856404;
    font-weight: 500;
    animation: pulse 2s infinite;
    position: relative;
    z-index: 10;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.pdf-confirm-container {
    text-align: center;
    margin: 20px 0;
}

.btn-confirm-read {
    background: #28a745;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-confirm-read:hover {
    background: #218838;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .pdf-viewer-container {
        padding: 10px;
        max-height: 650px;
    }
    
    .pdf-header {
        padding: 10px;
    }
    
    .pdf-viewer-container {
        height: 550px;
    }
    
    .pdf-scroll-container {
        padding: 10px;
    }
    
    .pdf-scroll-container::-webkit-scrollbar {
        width: 10px;
    }
    
    .page-info {
        font-size: 13px;
    }
    
    .zoom-btn {
        width: 28px;
        height: 28px;
        font-size: 16px;
    }
    
    #zoomLevel {
        font-size: 13px;
        min-width: 45px;
    }
    
    #pdfPagesContainer {
        gap: 15px;
    }
    
    #pdfPagesContainer canvas {
        width: 100% !important;
        height: auto !important;
    }
}