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

:root {
    /* Color Palette */
    --primary-dark: #1a2332;
    --primary-blue: #2c3e50;
    --accent-yellow: #f39c12;
    --accent-orange: #e67e22;
    --warning-red: #e74c3c;
    --white: #ffffff;
    --light-gray: #ecf0f1;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    background-image:
            linear-gradient(135deg, rgba(26, 35, 50, 0.95) 0%, rgba(44, 62, 80, 0.9) 100%),
            url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"%3E%3Cg fill-rule="evenodd"%3E%3Cg fill="%23ffffff" fill-opacity="0.05"%3E%3Cpath opacity=".5" d="M96 95h4v1h-4v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9h4v1h-4v9zm-1 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-10 0v-9h-9v9h9zm-9-10h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9zm10 0h9v-9h-9v9z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    text-align: center;
    padding: var(--spacing-md);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1) 0%, rgba(230, 126, 34, 0.1) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    opacity: 0.95;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    animation: bounce 2s infinite;
    opacity: 0.7;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-orange) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.6);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--primary-dark);
}

/* Why Section */
.why-section {
    background: var(--light-gray);
}

.why-content {
    display: grid;
    gap: var(--spacing-lg);
}

.why-main-text {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.why-action-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-orange);
    text-align: center;
}

.why-icons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.icon-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.icon-card:hover {
    transform: translateY(-5px);
}

.icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.icon-card p {
    font-weight: 600;
    color: var(--text-dark);
}

/* QR Section */
.qr-section {
    background: var(--white);
}

.qr-description {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
}

.qr-content {
    display: grid;
    gap: var(--spacing-lg);
}

.qr-code-container {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: 20px;
}

.qr-code-placeholder {
    display: inline-block;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--spacing-md);
}

.qr-code-placeholder img {
    width: 200px;
    height: 200px;
    display: block;
}

.qr-note {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
}

.qr-features {
    display: grid;
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 15px;
    border-left: 4px solid var(--accent-orange);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-left-width: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: var(--accent-orange);
    color: var(--white);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
}

.feature-card p {
    color: var(--text-light);
}

/* Safety Section */
.safety-section {
    background: var(--primary-dark);
    color: var(--white);
}

.safety-section .section-title {
    color: var(--white);
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.safety-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.safety-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.safety-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.safety-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.safety-card p {
    color: rgba(255, 255, 255, 0.8);
}

/* Upload Section */
.upload-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
    overflow: hidden;
}

.upload-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
            repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(255,255,255,.3) 35px, rgba(255,255,255,.3) 70px);
    opacity: 0.5;
    pointer-events: none;
}

.upload-description {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-light);
}

.upload-container {
    display: grid;
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.upload-form {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-row {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: 1fr;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--light-gray);
    border-radius: 10px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

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

/* File Upload Styling */
.file-upload-group {
    margin-bottom: var(--spacing-lg);
}

.file-upload-label {
    cursor: pointer;
}

.file-upload-label input[type="file"] {
    display: none;
}

.file-upload-area {
    border: 3px dashed var(--accent-orange);
    border-radius: 15px;
    padding: var(--spacing-lg);
    text-align: center;
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.05) 0%, rgba(230, 126, 34, 0.05) 100%);
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--accent-yellow);
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1) 0%, rgba(230, 126, 34, 0.1) 100%);
    transform: translateY(-2px);
}

.file-upload-area.dragover {
    border-color: var(--accent-yellow);
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.15) 0%, rgba(230, 126, 34, 0.15) 100%);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.upload-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.upload-hint {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.upload-formats {
    font-size: 0.8rem;
    color: var(--text-light);
    font-style: italic;
}

/* Image Preview */
.image-preview {
    margin-top: var(--spacing-md);
    display: none;
}

.image-preview.active {
    display: block;
}

.preview-container {
    position: relative;
    display: inline-block;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.preview-container img {
    max-width: 100%;
    max-height: 300px;
    display: block;
    border-radius: 15px;
}

.preview-remove {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--warning-red);
    color: var(--white);
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.preview-remove:hover {
    background: #c0392b;
    transform: scale(1.1);
}

/* Checkbox Styling */
.checkbox-group {
    margin: var(--spacing-lg) 0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-orange);
}

/* Submit Button */
.btn-submit {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn-submit .btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: var(--spacing-sm);
}

.btn-submit.loading .btn-text {
    opacity: 0.7;
}

.btn-submit.loading .btn-loader {
    display: inline-block;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

/* Form Messages */
.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

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

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

/* Stats Section */
.upload-stats {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.upload-stats h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-dark);
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--light-gray) 0%, #e8eef5 100%);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-orange);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 600;
}

/* Contacts Section */
.contacts-section {
    background: var(--light-gray);
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

.contact-link {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-orange);
    text-decoration: none;
    margin: var(--spacing-sm) 0;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--accent-yellow);
}

.contact-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--accent-yellow) 0%, var(--accent-orange) 100%);
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-main {
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-year {
    font-size: 0.9rem;
    opacity: 0.7;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .qr-content {
        grid-template-columns: 1fr 1.5fr;
        align-items: start;
    }

    .why-content {
        grid-template-columns: 1fr;
    }

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

    .upload-container {
        grid-template-columns: 1.5fr 1fr;
        align-items: start;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    section {
        padding: 5rem 0;
    }

    .hero {
        padding: var(--spacing-lg);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Accessibility */
:focus-visible {
    outline: 3px solid var(--accent-yellow);
    outline-offset: 3px;
}

/* Print Styles */
@media print {
    .hero,
    .cta-section,
    .scroll-indicator {
        display: none;
    }

    section {
        page-break-inside: avoid;
    }
}