:root {
    --primary-color: #0A84FF;
    --secondary-color: #30D158;
    --text-color: #1d1d1f;
    --background-color: #FFFFFF;
    --card-background: #FFFFFF;
    --light-gray: #F2F2F7;
    --border-radius: 12px;
    --section-spacing: 130px;
}

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

body {
    font-family: "SF Pro Display", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
nav {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 44px;
}

.logo-link {
    display: inline-block;
    cursor: pointer;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: -0.01em;
}

/* Hero Section */
.parallax-header {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: center;
    padding-top: 44px;
    background-color: #FBFBFD;
}

.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.hero-content h1 {
    max-width: 600px;
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    font-weight: 600;
    letter-spacing: -0.005em;
}

.hero-content p {
    max-width: 500px;
    margin-bottom: 2rem;
    font-size: 28px;
    color: #86868b;
    font-weight: 400;
    letter-spacing: 0.004em;
}

.hero-image {
    position: relative;
    height: 700px;
    max-height: 80vh;
}

.app-screenshot {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/app-screenshot.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

/* Features Section */
#features {
    padding: var(--section-spacing) 2rem;
    background-color: #FBFBFD;
}

#features h2 {
    text-align: center;
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.003em;
    margin-bottom: 20px;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    padding: 2rem 0;
}

.feature-card {
    padding: 2rem;
    background: var(--card-background);
    border-radius: 0;
    box-shadow: none;
    transition: transform 0.3s ease;
    text-align: center;
}

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

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

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 1rem 0;
    letter-spacing: -0.003em;
}

.feature-card p {
    font-size: 17px;
    color: #86868b;
    line-height: 1.47059;
    letter-spacing: -0.022em;
}

/* Testimonials Section */
#testimonials {
    padding: var(--section-spacing) 2rem;
    background-color: var(--background-color);
}

#testimonials h2 {
    text-align: center;
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.003em;
    margin-bottom: 50px;
}

.testimonials-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 0 1rem;
}

.testimonial-card {
    background: #FBFBFD;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: left;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-card p {
    font-size: 21px;
    line-height: 1.47059;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 400;
    flex-grow: 1;
    letter-spacing: 0.004em;
}

.testimonial-card cite {
    font-size: 17px;
    color: #86868b;
    font-style: normal;
    display: block;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

/* Download Section */
#download {
    text-align: center;
    padding: var(--section-spacing) 2rem;
}

#download h2 {
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.003em;
    margin-bottom: 20px;
}

.download-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.download-section p {
    font-size: 17px;
    color: #86868b;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

.app-store-button img {
    height: 44px;
}

/* Privacy Page */
.privacy-content {
    max-width: 800px;
    margin: 7rem auto 4rem;
    padding: 2rem;
    line-height: 1.7;
}

.privacy-content h1 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
    color: var(--text-color);
}

.privacy-content .effective-date {
    font-style: italic;
    color: #86868b;
    font-size: 17px;
    letter-spacing: -0.022em;
    margin-bottom: 2rem;
}

.privacy-content .intro {
    font-size: 21px;
    margin-bottom: 2rem;
    color: #86868b;
    letter-spacing: 0.004em;
    line-height: 1.47059;
}

.privacy-content h2 {
    margin: 2rem 0 1rem;
    font-size: 1.4rem;
    color: var(--text-color);
}

.privacy-content p {
    margin-bottom: 1rem;
    color: #86868b;
    font-size: 17px;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

.privacy-content a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.privacy-content .thank-you {
    margin-top: 3rem;
    font-style: italic;
    color: #86868b;
    font-size: 17px;
    letter-spacing: -0.022em;
}

@media (max-width: 768px) {
    .privacy-content {
        padding: 1.5rem;
        margin-top: 5rem;
    }

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

    .privacy-content h2 {
        font-size: 1.2rem;
    }
}

/* Footer */
footer {
    background-color: var(--card-background);
    padding: 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.support-button-container {
    margin-bottom: 1.5rem;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
}

/* Buttons */
.cta-button {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 12px 23px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .parallax-header {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: 40px;
    }
    
    .hero-split {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-content {
        text-align: center;
        margin: 0 auto;
        padding: 0 1rem;
    }
    
    .hero-content h1 {
        font-size: 40px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-content p {
        font-size: 21px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-image {
        height: 500px;
        margin: 0 auto;
        width: 100%;
        max-width: 400px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .nav-links {
        display: flex;
        gap: 1rem;
    }
    
    .nav-links a {
        margin-left: 0;
        font-size: 0.9rem;
    }
}

/* Additional mobile optimization */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-content p {
        font-size: 19px;
    }
    
    .hero-image {
        height: 400px;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
}

.hero-content ul {
    list-style: none;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-content li {
    position: relative;
    font-size: 19px;
    color: #1d1d1f;
    margin-bottom: 1rem;
    padding-left: 2rem;
    letter-spacing: 0.004em;
    line-height: 1.4;
}

.hero-content li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 40px;
    }
    
    .hero-content p {
        font-size: 21px;
    }
    
    .hero-content ul {
        text-align: left;
        margin-left: auto;
        margin-right: auto;
        padding: 0 1rem;
    }
    
    .hero-content li {
        font-size: 17px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-content p {
        font-size: 19px;
    }
    
    .hero-content li {
        font-size: 16px;
        padding-left: 1.5rem;
    }
}

@media (max-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    #testimonials {
        padding: calc(var(--section-spacing) * 0.7) 1rem;
    }
    
    #testimonials h2 {
        font-size: 32px;
        margin-bottom: 30px;
        padding: 0 1rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .testimonial-card p {
        font-size: 19px;
    }
    
    .testimonial-card cite {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    #testimonials h2 {
        font-size: 28px;
    }
    
    .testimonial-card {
        padding: 1.25rem;
    }
}

/* Support Page */
.support-content {
    max-width: 1000px;
    margin: 7rem auto 4rem;
    padding: 2rem;
}

.support-content h1 {
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.003em;
    margin-bottom: 2rem;
    color: var(--text-color);
}

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

.support-section h2 {
    font-size: 32px;
    font-weight: 600;
    letter-spacing: -0.003em;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.support-card {
    background: #FBFBFD;
    padding: 2rem;
    border-radius: var(--border-radius);
}

.support-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
    letter-spacing: -0.003em;
}

.support-card ul {
    list-style: none;
    padding: 0;
}

.support-card li {
    font-size: 17px;
    color: #86868b;
    margin-bottom: 0.8rem;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

.faq-list {
    display: grid;
    gap: 2rem;
}

.faq-item h3 {
    font-size: 21px;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    letter-spacing: 0.004em;
}

.faq-item p {
    font-size: 17px;
    color: #86868b;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

.contact-section {
    text-align: center;
    background: #FBFBFD;
    padding: 3rem;
    border-radius: var(--border-radius);
}

.contact-section p {
    font-size: 19px;
    color: #86868b;
    margin-bottom: 2rem;
    letter-spacing: -0.022em;
    line-height: 1.47059;
}

.contact-button {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 12px 23px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.contact-button:hover {
    transform: translateY(-2px);
}

.response-time {
    font-size: 15px !important;
    margin-top: 1rem;
    font-style: italic;
}

/* Support Page Responsive */
@media (max-width: 768px) {
    .support-content {
        padding: 1.5rem;
        margin-top: 5rem;
    }

    .support-content h1 {
        font-size: 32px;
    }

    .support-section h2 {
        font-size: 28px;
    }

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

    .contact-section {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .support-card h3 {
        font-size: 21px;
    }

    .support-card li {
        font-size: 15px;
    }

    .faq-item h3 {
        font-size: 19px;
    }

    .faq-item p {
        font-size: 15px;
    }
}

.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.mobile-menu-button span {
    display: block;
    width: 24px;
    height: 2px;
    margin: 5px 0;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .mobile-menu-button {
        display: block;
    }

    .mobile-menu-button.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-button.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-button.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right 0.3s ease;
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        margin-left: 0;
        font-size: 1.1rem;
        padding: 0.5rem 1rem;
    }

    body.menu-open {
        overflow: hidden;
    }
} 

.faq-item ol {
    margin: 10px 0;
    padding-left: 20px;
}

.faq-item li {
    margin: 8px 0;
    color: #1d1d1f;
    line-height: 1.4;
}

@media (max-width: 480px) {
    .faq-item ol {
        padding-left: 16px;
    }
    
    .faq-item li {
        font-size: 15px;
    }
}