/* Reset & Base Styles */
:root {
    --primary: #ff6b00;
    --primary-dark: #e55a00;
    --primary-light: #ffe0cc;
    --secondary: #007bff;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --dark: #343a40;
    --light: #f8f9fa;
    --gray: #6c757d;
    --border: #dee2e6;
    --radius: 10px;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

.section-title {
    font-size: 1.8rem;
    color: var(--dark);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary);
}

.section-description {
    color: var(--gray);
    margin-bottom: 30px;
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #ff8c00 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 0, 0.4);
}

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

.btn-secondary:hover {
    background: #e9ecef;
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
    background: #218838;
    transform: translateY(-3px);
}

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

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Progress Bar */
.progress-container {
    background: white;
    padding: 20px;
    border-radius: var(--radius);
    margin: 0 20px 30px;
    box-shadow: var(--shadow);
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--border);
    z-index: 1;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    flex: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--light);
    border: 3px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.step-label {
    font-weight: 500;
    color: var(--gray);
    font-size: 0.9rem;
    text-align: center;
}

.progress-step.active .step-number {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.progress-step.active .step-label {
    color: var(--primary);
    font-weight: 600;
}

/* Registration Container */
.registration-container {
    background: white;
    border-radius: var(--radius);
    margin: 0 20px 40px;
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
}

/* Form Sections */
.form-section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.form-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

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

/* Input Fields */
input, select, textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-with-icon input {
    padding-left: 45px;
}

/* Error Messages */
.error-message {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 5px;
    display: none;
}

/* File Upload */
.file-upload-box {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    background: var(--light);
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-box:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.upload-content h4 {
    margin-bottom: 10px;
    color: var(--dark);
}

.upload-content p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.file-input-wrapper {
    position: relative;
}

.file-input {
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}

.file-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    border: 2px solid var(--primary);
    border-radius: 50px;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.file-label:hover {
    background: var(--primary);
    color: white;
}

/* Documents Grid */
.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.document-card {
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    transition: var(--transition);
}

.document-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.document-card.required {
    border-left: 5px solid var(--primary);
}

.document-card.optional {
    border-left: 5px solid var(--info);
}

.doc-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.document-card.optional .doc-icon {
    color: var(--info);
}

.doc-content h4 {
    margin-bottom: 10px;
    color: var(--dark);
}

.doc-content p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* File Preview */
.file-preview {
    margin-top: 15px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: var(--light);
    border-radius: 5px;
    margin-bottom: 8px;
}

.file-item i {
    color: var(--primary);
}

.file-name {
    flex: 1;
    font-size: 0.9rem;
}

.file-size {
    color: var(--gray);
    font-size: 0.8rem;
}

.remove-file {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0 5px;
}

/* Agreement Box */
.agreement-box {
    margin-bottom: 40px;
}

.agreement-content {
    background: var(--light);
    border-radius: var(--radius);
    padding: 30px;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 30px;
}

.agreement-content h4 {
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.terms-section {
    margin-bottom: 20px;
}

.terms-section h5 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 1rem;
}

.terms-section ul {
    padding-left: 20px;
    color: var(--gray);
}

.terms-section li {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.checkbox-group:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 3px;
    transform: scale(1.2);
}

.checkbox-group label {
    margin-bottom: 0;
    cursor: pointer;
    flex: 1;
}

/* Form Navigation */
.form-navigation {
    display: flex;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 2px solid var(--border);
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.loading-content {
    text-align: center;
    max-width: 500px;
    padding: 40px;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--light);
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.progress-bar-loading {
    width: 100%;
    height: 10px;
    background: var(--light);
    border-radius: 5px;
    margin-top: 20px;
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #ff8c00);
    animation: loading 2s ease-in-out infinite;
}

@keyframes loading {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* Success Message */
.success-message {
    text-align: center;
    padding: 40px;
}

.success-icon {
    font-size: 5rem;
    color: var(--success);
    margin-bottom: 20px;
    animation: bounce 1s ease;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-30px);}
    60% {transform: translateY(-15px);}
}

.success-text {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.success-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.detail-box {
    background: var(--light);
    padding: 20px;
    border-radius: var(--radius);
    text-align: left;
    display: flex;
    gap: 15px;
    align-items: center;
}

.detail-box i {
    font-size: 2rem;
    color: var(--primary);
}

.reference-code {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

.next-steps {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    margin: 40px 0;
    text-align: left;
}

.next-steps h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--dark);
}

.next-steps ol {
    padding-left: 20px;
    color: var(--gray);
}

.next-steps li {
    margin-bottom: 10px;
    padding-left: 10px;
}

.success-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin: 30px 0;
}

.support-info {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--border);
    color: var(--gray);
}

.support-info i {
    color: var(--primary);
    margin-right: 10px;
}

/* Footer */
.registration-footer {
    background: var(--dark);
    color: white;
    padding: 40px 20px;
    margin-top: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-brand h3 {
    color: white;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand p {
    color: #aaa;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #aaa;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-security {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #aaa;
    font-size: 0.9rem;
}

.security-badge i {
    color: var(--success);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #aaa;
    font-size: 0.9rem;
}

.disclaimer {
    margin-top: 10px;
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Spam Trap */
.spam-trap {
    position: absolute;
    left: -9999px;
    opacity: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .registration-container {
        margin: 0 10px 30px;
        padding: 25px;
    }
    
    .progress-container {
        margin: 0 10px 20px;
        padding: 15px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .step-label {
        font-size: 0.8rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .documents-grid {
        grid-template-columns: 1fr;
    }
    
    .form-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
    }
    
    .success-details {
        grid-template-columns: 1fr;
    }
    
    .success-actions {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
    }
    
    .security-badge {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
    }
    
    .agreement-content {
        padding: 20px;
    }
    
    .checkbox-group {
        padding: 10px;
    }
}