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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

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

/* Header Styles */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2563eb;
}

.language-switcher {
    position: relative;
}

.lang-btn {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-btn:hover {
    background: #e2e8f0;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    display: none;
    z-index: 200;
}

.lang-dropdown.show {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 10px 16px;
    text-decoration: none;
    color: #333;
    transition: background-color 0.2s;
}

.lang-dropdown a:hover {
    background: #f1f5f9;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Ad Placeholders */
.ad-placeholder {
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    margin: 2rem 0;
}

.ad-hero {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.ad-content {
    font-size: 0.9rem;
    color: #6c757d;
}

.ad-hero .ad-content {
    color: rgba(255, 255, 255, 0.7);
}

/* Generator Section */
.generator-section {
    padding: 4rem 0;
    background: white;
}

.generator-wrapper {
    margin-top: -100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.generator-form {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-input,
.form-select {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input {
    resize: vertical;
    min-height: 100px;
}

.btn-primary {
    background: #2563eb;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: #10b981;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.btn-secondary:hover {
    background: #059669;
}

.generator-result {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    text-align: center;
}

.qr-display {
    margin-bottom: 1.5rem;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #e2e8f0;
    border-radius: 8px;
    padding: 2rem;
}

.qr-placeholder {
    color: #6b7280;
}

.qr-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.qr-result-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Error display styles for QR generation */
.qr-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    color: #ef4444;
    background-color: #fef2f2;
    border: 1px solid #fca5a5;
    border-radius: 8px;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.qr-error p {
    margin: 0;
    font-weight: 500;
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    background: #f8fafc;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.2s;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Use Cases Section */
.use-cases-section {
    padding: 4rem 0;
    background: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2563eb;
}

.use-case-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    padding: 4rem 0;
    background: #f8fafc;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.faq-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.faq-item p {
    color: #6b7280;
    line-height: 1.6;
}

/* SEO Content Section */
.seo-content {
    padding: 4rem 0;
    background: white;
}

.seo-content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.seo-content-item h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.seo-content-item p {
    color: #6b7280;
    line-height: 1.7;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1e293b;
    color: white;
    padding: 1rem;
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.cookie-text {
    flex: 1;
}

.cookie-text h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: #f1f5f9;
}

.cookie-text p {
    color: #94a3b8;
    line-height: 1.5;
    margin: 0;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
}

.btn-accept {
    background: #10b981;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease;
}

.btn-accept:hover {
    background: #059669;
}

.btn-reject {
    background: transparent;
    color: #94a3b8;
    border: 1px solid #475569;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-reject:hover {
    background: #475569;
    color: white;
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cookie-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .btn-accept,
    .btn-reject {
        flex: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .generator-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-top: -80px;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .generator-section {
        padding: 2rem 0;
    }

    .generator-form,
    .generator-result {
        padding: 1rem;
    }

    .features-section,
    .use-cases-section,
    .faq-section,
    .seo-content {
        padding: 2rem 0;
    }

    .feature-card,
    .use-case-card,
    .faq-item {
        padding: 1.5rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

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

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .ad-placeholder {
        display: none;
    }

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


@keyframes pulse {
    0% {
        transform: scale(0.95);
    }

    70% {
        transform: scale(1);
    }

    100% {
        transform: scale(0.95);
    }
}

/* Tracking debug info (only visible in development) */
.tracking-debug {
    position: fixed;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px;
    border-radius: 4px;
    font-size: 12px;
    z-index: 10000;
    max-width: 300px;
    display: none;
}

.tracking-debug.show {
    display: block;
}

/* Privacy-friendly tracking indicator */
.tracking-status {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.5rem;
    text-align: center;
}

.tracking-status.enabled::before {
    content: "🔒 ";
}

.tracking-status.disabled::before {
    content: "📊 ";
}

/* Loading state styles */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}