/* SOND Landing Page - Apple-inspired Minimalist Design */

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

:root {
    /* Colors */
    --primary-blue: #007AFF;
    --primary-blue-dark: #0051D5;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --background: #ffffff;
    --background-secondary: #f5f5f7;
    --border-color: #d2d2d7;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);

    /* New: Gradient colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --rainbow: linear-gradient(90deg, #ff0080, #ff8c00, #40e0d0, #ff0080);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glow-purple: rgba(102, 126, 234, 0.4);

    /* Rainbow button colors */
    --color-1: 0 100% 63%;    /* hsl(0, 100%, 63%) - Red/Pink */
    --color-2: 270 100% 63%;  /* hsl(270, 100%, 63%) - Purple */
    --color-3: 210 100% 63%;  /* hsl(210, 100%, 63%) - Blue */
    --color-4: 195 100% 63%;  /* hsl(195, 100%, 63%) - Cyan */
    --color-5: 90 100% 63%;   /* hsl(90, 100%, 63%) - Green */

    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-hero: 56px;
    --font-size-h2: 40px;
    --font-size-h3: 32px;
    --font-size-h4: 24px;
    --font-size-body: 17px;
    --font-size-small: 14px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 120px;

    /* Layout */
    --max-width: 980px;
    --border-radius: 12px;
    --border-radius-lg: 18px;
}

body {
    font-family: var(--font-system);
    font-size: var(--font-size-body);
    line-height: 1.8;
    color: var(--text-primary);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Container === */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Header === */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.logo h1 {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

nav {
    display: flex;
    gap: var(--spacing-md);
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.2s;
    padding: var(--spacing-xs) 0;
}

nav a:hover,
nav a.active {
    color: var(--primary-blue);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* === Hero Section === */
.hero {
    text-align: center;
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
    min-height: 600px;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: var(--font-size-hero);
    font-weight: 700;
    letter-spacing: -1.5px;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

/* Rotating Text */
.hero-rotating-text {
    display: inline-block;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    position: relative;
    min-width: 200px;
    text-align: left;
}

.tagline {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === Buttons === */
.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    border-radius: 980px;
    font-size: var(--font-size-body);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px var(--shadow-medium);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
}

/* Rainbow Button - Enhanced from 21st.dev */
.btn-rainbow {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 12px;
    border: calc(0.08 * 1rem) solid transparent;
    padding: 0.5rem 2rem;
    font-weight: 500;
    color: white;
    transition: all 0.3s ease;

    /* Triple background for border gradient effect */
    background-image:
        linear-gradient(#121213, #121213),
        linear-gradient(#121213 50%, rgba(18, 18, 19, 0.6) 80%, rgba(18, 18, 19, 0)),
        linear-gradient(90deg,
            hsl(var(--color-1)),
            hsl(var(--color-5)),
            hsl(var(--color-3)),
            hsl(var(--color-4)),
            hsl(var(--color-2))
        );
    background-origin: border-box;
    background-clip: padding-box, border-box, border-box;
    background-size: 200%;
    animation: rainbow 6s linear infinite;
}

.btn-rainbow::before {
    content: '';
    position: absolute;
    bottom: -20%;
    left: 50%;
    transform: translateX(-50%);
    z-index: -1;
    width: 60%;
    height: 20%;
    background: linear-gradient(90deg,
        hsl(var(--color-1)),
        hsl(var(--color-5)),
        hsl(var(--color-3)),
        hsl(var(--color-4)),
        hsl(var(--color-2))
    );
    background-size: 200%;
    filter: blur(calc(0.8 * 1rem));
    animation: rainbow 6s linear infinite;
}

.btn-rainbow:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

/* Interactive Hover Button */
.btn-interactive {
    position: relative;
    overflow: hidden;
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-interactive::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary-blue);
    border-radius: 50%;
    left: 20%;
    top: 40%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.btn-interactive:hover {
    color: white;
    border-color: var(--primary-blue);
}

.btn-interactive:hover::after {
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    border-radius: 980px;
    transform: scale(1.8);
}

/* === Features Section === */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.features h3,
.use-cases h3,
.technical h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--background);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid #e0e0e0;
    transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: #333;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

.feature-card h4 {
    font-size: var(--font-size-h4);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* === Use Cases === */
.use-cases {
    padding: var(--spacing-xl) 0;
}

.use-case-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.use-case {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    background: var(--background-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.use-case strong {
    font-size: 20px;
    color: var(--text-primary);
}

.use-case span {
    color: var(--text-secondary);
    font-size: var(--font-size-small);
}

/* === Technical Section === */
.technical {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.technical ul {
    max-width: 600px;
    margin: 0 auto;
    list-style: none;
}

.technical li {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.technical li:last-child {
    border-bottom: none;
}

/* === CTA Footer === */
.cta-footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-footer h3 {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-sm);
}

.cta-footer p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* === Footer === */
footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-small);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-blue);
}

.copyright {
    color: var(--text-secondary);
    font-size: var(--font-size-small);
}

/* === Legal/Support Content === */
.legal-content,
.support-content {
    padding: var(--spacing-lg) 0;
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2,
.support-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.last-updated,
.intro {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.legal-content section,
.support-content section {
    margin-bottom: var(--spacing-lg);
}

.legal-content h3,
.support-content h3 {
    font-size: var(--font-size-h3);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-content h4,
.support-content h4 {
    font-size: var(--font-size-h4);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-blue);
}

.legal-content p,
.support-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.legal-content ul,
.legal-content ol,
.support-content ul,
.support-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.legal-content li,
.support-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

.legal-content a,
.support-content a {
    color: var(--primary-blue);
    text-decoration: none;
}

.legal-content a:hover,
.support-content a:hover {
    text-decoration: underline;
}

.no-collect-list {
    list-style: none;
    margin-left: 0;
}

.service-card {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.service-card h4 {
    margin-top: 0;
}

.note {
    background: #fff8e1;
    padding: var(--spacing-sm);
    border-left: 4px solid #ffc107;
    border-radius: var(--border-radius);
    margin: var(--spacing-sm) 0;
}

.final-note {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background-secondary);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-lg);
}

/* === FAQ Section === */
.faq-item {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.faq-item h4 {
    margin-top: 0;
}

.troubleshooting {
    margin-top: var(--spacing-xl);
}

.system-requirements {
    background: var(--background-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    margin-top: var(--spacing-xl);
}

.contact {
    margin-top: var(--spacing-xl);
}

.contact-method {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.update-item {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.resources {
    margin-top: var(--spacing-lg);
}

/* === Responsive Design === */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 40px;
    }

    .tagline {
        font-size: 20px;
    }

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

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

    nav {
        gap: var(--spacing-sm);
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .legal-content h2,
    .support-content h2 {
        font-size: 32px;
    }

    .legal-content h3,
    .support-content h3 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 32px;
        --spacing-xl: 48px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .logo h1 {
        font-size: 24px;
    }

    header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* === Problem Section === */
.problem-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.problem-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.problem-story p {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.problem-story .highlight {
    background: #fff8e1;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-style: italic;
    color: var(--text-secondary);
}

/* === Solution Section === */
.solution-section {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.solution-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.solution-intro {
    text-align: center;
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

.insight-card {
    background: var(--background);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid #e0e0e0;
    transition: border-color 0.3s;
}

.insight-card:hover {
    border-color: #333;
}

.insight-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-sm);
}

.insight-card p {
    font-size: 17px;
    line-height: 1.5;
    color: var(--text-primary);
    font-style: italic;
}

.solution-tagline {
    text-align: center;
    font-size: 24px;
    color: var(--text-primary);
}

/* === Privacy Section === */
.privacy-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.privacy-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.privacy-intro {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

.comparison-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--background-secondary);
    border-radius: var(--border-radius);
}

.check-icon {
    font-size: 24px;
    color: #34c759;
    font-weight: bold;
}

.comparison-item p {
    margin: 0;
    font-size: 17px;
    color: var(--text-primary);
}

.privacy-tagline {
    font-size: 20px;
    color: var(--text-primary);
    font-weight: 500;
}

/* === Pricing Section === */
.pricing {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.pricing h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto var(--spacing-md);
}

.pricing-card {
    background: var(--background);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid #e0e0e0;
    text-align: center;
    position: relative;
    transition: border-color 0.3s;
}

.pricing-card:hover {
    border-color: #333;
}

.pricing-card.featured {
    border: 2px solid var(--primary-blue);
}

.popular-badge {
    background: var(--primary-blue);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
}

.pricing-card h4 {
    font-size: var(--font-size-h4);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.price {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.price span {
    font-size: 20px;
    color: var(--text-secondary);
}

.price-detail {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-small);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pricing-features li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-small);
    max-width: 600px;
    margin: 0 auto;
}

/* === FAQ Section === */
.faq {
    padding: var(--spacing-xl) 0;
}

.faq h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq .faq-item {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.faq .faq-item h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.faq .faq-item p {
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
}

/* === CTA Support === */
.cta-support {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-small);
    color: var(--text-secondary);
}

.cta-support a {
    color: var(--primary-blue);
    text-decoration: none;
}

.cta-support a:hover {
    text-decoration: underline;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

/* === Referral Program Section === */
.referral-section {
    margin: 48px 0;
    text-align: center;
}

.referral-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.referral-intro {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.referral-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.referral-card {
    background: var(--background);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 12px var(--shadow-light);
    transition: transform 0.3s, box-shadow 0.3s;
}

.referral-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-medium);
}

.referral-icon {
    font-size: 48px;
    margin-bottom: 16px;
    transition: transform 0.3s;
}

.referral-card:hover .referral-icon {
    animation: bounce 0.5s;
}

.referral-card h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
}

.bonus-amount {
    font-size: 32px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    position: relative;
}

.bonus-amount::after {
    content: '';
    position: absolute;
    inset: -4px;
    background: inherit;
    filter: blur(12px);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.referral-card:hover .bonus-amount::after {
    opacity: 0.5;
}

.referral-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.referral-note {
    font-size: 16px;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 24px;
}

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

/* New animations */
@keyframes rainbow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

/* === Language Switcher === */
.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.lang-switcher a {
    text-decoration: none;
    font-size: 24px;
    opacity: 0.5;
    transition: opacity 0.3s, transform 0.3s;
    display: inline-block;
}

.lang-switcher a:hover {
    opacity: 1;
    transform: scale(1.1);
}

.lang-switcher a.active,
.lang-switcher a.lang-active {
    opacity: 1;
}

/* === Comparison Cards (Hero Section) === */
.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: var(--spacing-lg) auto;
}

.comparison-card {
    background: var(--background);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px var(--shadow-medium);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.card-badge.bad {
    background: #ffebee;
    color: #c62828;
}

.card-badge.good {
    background: #e8f5e9;
    color: #2e7d32;
}

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

.card-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    padding: var(--spacing-sm);
    background: var(--background-secondary);
    border-radius: var(--border-radius);
}

/* === Why SOND Section === */
.why-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.why-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.why-intro {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* === Steps Section (Zoom Usage) === */
.steps-section,
.how-to-section {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.steps-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.steps-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    background: var(--background);
    padding: 32px 24px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    position: relative;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
    border-color: var(--primary-blue);
}

.step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.step-icon {
    font-size: 48px;
    margin: var(--spacing-sm) 0;
}

.step-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.step-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* === Context Section === */
.context-section {
    padding: var(--spacing-xl) 0;
}

.context-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.context-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

.context-card {
    background: var(--background-secondary);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.context-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.context-badge {
    display: inline-block;
    background: var(--primary-blue);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.context-card h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.context-card p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* === Privacy Facts Section === */
.privacy-facts,
.privacy-facts-section {
    padding: var(--spacing-xl) 0;
    background: var(--background-secondary);
    margin: 0 calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.privacy-facts h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.facts-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.fact-card {
    background: var(--background);
    padding: 28px;
    border-radius: var(--border-radius-lg);
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.fact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
    border-color: #34c759;
}

.fact-icon {
    font-size: 40px;
    margin-bottom: var(--spacing-sm);
}

.fact-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.fact-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

.fact-card strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* === Comparison Section (SOND vs Otter) === */
.comparison-section,
.better-section {
    padding: var(--spacing-xl) 0;
}

.comparison-section h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.comparison-table {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow-light);
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 100px 100px;
    gap: 1px;
    background: #e0e0e0;
}

.comparison-row.header {
    background: var(--primary-blue);
}

.comparison-cell {
    padding: 16px;
    background: var(--background);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 15px;
}

.comparison-row.header .comparison-cell {
    background: var(--primary-blue);
    color: white;
    font-weight: 700;
    font-size: 16px;
}

.comparison-cell:first-child {
    justify-content: flex-start;
    text-align: left;
    color: var(--text-primary);
    font-weight: 500;
}

.comparison-row.header .comparison-cell:first-child {
    color: white;
}

.comparison-check {
    font-size: 24px;
    color: #34c759;
    font-weight: bold;
}

.comparison-cross {
    font-size: 24px;
    color: #ff3b30;
    font-weight: bold;
}

/* Alternative comparison table styles */
.comparison-feature,
.comparison-sond,
.comparison-other {
    padding: 20px;
    background: var(--background);
    border-bottom: 1px solid #e0e0e0;
}

.comparison-row:last-child .comparison-feature,
.comparison-row:last-child .comparison-sond,
.comparison-row:last-child .comparison-other {
    border-bottom: none;
}

.comparison-feature {
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
}

.comparison-sond {
    background: #e8f5e9;
    font-weight: 500;
}

.comparison-other {
    background: #ffebee;
    color: var(--text-secondary);
}

.better-section .comparison-table {
    display: flex;
    flex-direction: column;
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow-light);
}

.better-section .comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
    background: transparent;
}

/* Additional utility classes */
.section-intro {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 700;
    letter-spacing: -1.5px;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.hero-note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-small);
    color: var(--text-secondary);
}

.highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.how-to-note,
.privacy-link {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: 16px;
    color: var(--text-secondary);
}

.privacy-link a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.privacy-link a:hover {
    text-decoration: underline;
}

.context-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0 0 0;
}

.context-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    padding-left: 24px;
}

.context-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.context-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
}

/* === Mobile Responsiveness === */
@media (max-width: 768px) {
    .comparison-cards {
        grid-template-columns: 1fr;
    }

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

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

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

    .comparison-table {
        font-size: 13px;
    }

    .comparison-cell {
        padding: 12px 8px;
        font-size: 13px;
    }

    .comparison-check,
    .comparison-cross {
        font-size: 20px;
    }

    .step-card,
    .context-card,
    .fact-card {
        padding: 24px;
    }

    .why-intro {
        font-size: 18px;
    }

    .steps-intro,
    .context-intro,
    .facts-intro,
    .section-intro {
        font-size: 16px;
    }

    .better-section .comparison-row {
        grid-template-columns: 1fr;
    }

    .comparison-feature,
    .comparison-sond,
    .comparison-other {
        padding: 16px;
        text-align: center;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .card-text {
        font-size: 14px;
        padding: 10px;
    }

    .comparison-row {
        grid-template-columns: 1.5fr 80px 80px;
    }

    .comparison-cell {
        font-size: 12px;
        padding: 10px 6px;
    }

    .comparison-row.header .comparison-cell {
        font-size: 13px;
    }
}

.hero,
.features,
.use-cases,
.technical,
.problem-section,
.solution-section,
.privacy-section,
.pricing,
.referral-section,
.faq,
.why-section,
.steps-section,
.how-to-section,
.context-section,
.privacy-facts,
.privacy-facts-section,
.comparison-section,
.better-section {
    animation: fadeIn 0.6s ease-out;
}