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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header and Navigation */
header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.logo h1 a {
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-tagline {
    margin-top: 2rem;
}

.hero-tagline p {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    border: 8px solid var(--text-primary);
    border-radius: 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: var(--shadow-xl);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background-color: var(--text-primary);
    border-radius: 1rem;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 1.5rem;
    background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

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

.feature-card {
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: 1rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

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

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    border: 2px solid white;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.step p {
    opacity: 0.9;
    line-height: 1.7;
}

/* Use Cases Section */
.use-cases {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.use-cases h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.use-case-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.use-case {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--bg-white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.use-case .emoji {
    font-size: 2rem;
    flex-shrink: 0;
}

.use-case p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.use-case strong {
    color: var(--text-primary);
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background-color: var(--bg-white);
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.cta-section p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
footer {
    background-color: var(--text-primary);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links h4,
.footer-social h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

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

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-social p {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* Privacy Policy Page */
.privacy-page {
    padding: 3rem 0;
    background-color: var(--bg-white);
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.last-updated {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.privacy-section {
    margin-bottom: 3rem;
}

.privacy-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    margin-top: 2rem;
}

.privacy-section h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
    color: var(--text-primary);
}

.privacy-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.privacy-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.privacy-section li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.privacy-footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

/* Support Page */
.support-page {
    padding: 3rem 0;
    background-color: var(--bg-white);
}

.support-content {
    max-width: 900px;
    margin: 0 auto;
}

.support-content h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    text-align: center;
}

.support-content .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

.support-section {
    margin-bottom: 4rem;
}

.support-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.support-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 2rem;
    color: var(--text-primary);
}

.support-section h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    margin-top: 1.25rem;
    color: var(--primary-dark);
    font-weight: 600;
}

.support-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.support-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.support-section li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.support-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.support-section a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Contact Cards */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-card {
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    margin-top: 0.5rem;
    color: var(--text-primary);
}

.contact-card p {
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.125rem;
}

.contact-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* FAQ Accordion */
.faq-list {
    margin-top: 2rem;
}

.faq-item {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2rem;
}

.faq-item h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    margin-top: 0;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.75rem;
}

.faq-content h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.faq-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

/* Tips Grid */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tip-card {
    background: linear-gradient(135deg, var(--bg-light) 0%, white 100%);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.tip-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.tip-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.tip-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    margin-top: 0.5rem;
    color: var(--text-primary);
}

.tip-card p {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Support CTA */
.support-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 1rem;
    padding: 3rem 2rem;
    text-align: center;
    margin-top: 4rem;
}

.support-cta h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: white;
}

.support-cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.support-cta .btn {
    background: white;
    color: var(--primary-color);
    font-size: 1.125rem;
    padding: 1rem 2rem;
}

.support-cta .btn:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

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

    .hero-tagline p {
        font-size: 1.25rem;
    }

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

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.875rem;
    }

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

    .features h2,
    .how-it-works h2,
    .use-cases h2,
    .cta-section h2 {
        font-size: 2rem;
    }

    .privacy-content h1 {
        font-size: 2rem;
    }

    .privacy-section h2 {
        font-size: 1.5rem;
    }

    .support-content h1 {
        font-size: 2rem;
    }

    .support-content .subtitle {
        font-size: 1.125rem;
    }

    .support-section h2 {
        font-size: 1.75rem;
    }

    .support-section h3 {
        font-size: 1.25rem;
    }

    .contact-info,
    .tips-grid {
        grid-template-columns: 1fr;
    }

    .support-cta {
        padding: 2rem 1.5rem;
    }

    .support-cta h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 2rem 0;
    }

    .features,
    .how-it-works,
    .use-cases,
    .cta-section {
        padding: 3rem 0;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .logo h1 {
        font-size: 1.25rem;
    }
}