:root {
    --primary-color: #000000;
    --primary-dark: #000000;
    --primary-light: #f5f5f5;
    --text-color: #000000;
    --text-light: #666666;
    --text-lighter: #999999;
    --background: #ffffff;
    --section-bg: #fafafa;
    --section-bg-alt: #f5f5f5;
    --pro-color: #000000;
    --pro-light: #f5f5f5;
    --accent-color: #000000;
    --success-color: #000000;
    --error-color: #000000;
    --border-color: #e0e0e0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header Styles */
header {
    padding: 1.5rem 2rem;
    position: fixed;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: all 0.3s ease;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    min-height: 3rem;
    padding: 0.5rem;
    border: 1px solid #ddd;
}

.logo-image {
    height: 3rem;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    display: block;
    border: 1px solid #ccc;
    vertical-align: middle;
    flex-shrink: 0;
    background-color: #f0f0f0;
}

.logo i {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 6rem;
    background: linear-gradient(135deg, var(--section-bg) 0%, var(--background) 100%);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-color) 0%, var(--text-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.5;
    font-weight: 500;
    font-style: italic;
}

.platforms {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.platforms span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    color: var(--text-light);
    padding: 0.5rem 1rem;
    background-color: var(--background);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

.secondary-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: transparent;
    color: var(--text-color);
    padding: 1rem 2rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.secondary-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-preview {
    perspective: 1000px;
}

.app-window {
    background: var(--background);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.app-window:hover {
    transform: rotateY(-10deg) rotateX(2deg);
}

.app-header {
    background: var(--section-bg);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.app-dots {
    display: flex;
    gap: 0.5rem;
}

.app-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-lighter);
}

.app-dots span:nth-child(1) { background: #ff5f56; }
.app-dots span:nth-child(2) { background: #ffbd2e; }
.app-dots span:nth-child(3) { background: #27ca3f; }

.app-content {
    padding: 2rem;
}

.note-preview h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.note-preview p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.note-tags {
    display: flex;
    gap: 0.5rem;
}

.tag {
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Intro Section */
.intro {
    padding: 6rem 2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    background: var(--background);
}

.intro h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.intro p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.quote-section {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--section-bg);
    border-radius: 16px;
    border-left: 4px solid var(--primary-color);
}

.quote-section blockquote {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.quote-section cite {
    display: block;
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-style: normal;
}


/* Features Section */
.features {
    padding: 6rem 2rem;
    background: var(--section-bg);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--background);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Showcase Section */
.showcase {
    padding: 6rem 2rem;
    background: var(--background);
}

.showcase-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.showcase-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.showcase-text p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.showcase-features {
    list-style: none;
}

.showcase-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.showcase-features i {
    color: var(--success-color);
    font-size: 1.125rem;
}

.app-screenshot {
    background: var(--section-bg);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.screenshot-content {
    background: var(--background);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.screenshot-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.screenshot-title {
    font-weight: 600;
    color: var(--text-color);
}

.screenshot-date {
    font-size: 0.875rem;
    color: var(--text-light);
}

.screenshot-body p {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.screenshot-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.auto-tag {
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    border: 1px solid var(--border-color);
}

/* Pricing Section */
.pricing {
    padding: 6rem 2rem;
    background: var(--section-bg-alt);
    text-align: center;
}

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

.pricing-subtitle {
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.125rem;
}

.pricing-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto 3rem;
}

.pricing-tier {
    background: var(--background);
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: left;
    position: relative;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.pricing-tier:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-tier.pro {
    border: 2px solid var(--pro-color);
    background: linear-gradient(135deg, var(--background) 0%, var(--pro-light) 100%);
}

.pro-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pro-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

.pricing-tier h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.tier-description {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.pricing-tier ul {
    list-style: none;
    margin-bottom: 2.5rem;
}

.pricing-tier li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.pricing-tier li i.fa-check {
    color: var(--success-color);
}

.pricing-tier li i.fa-times {
    color: var(--error-color);
}

.tier-price {
    text-align: center;
    margin-bottom: 1.5rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.period {
    font-size: 1.125rem;
    color: var(--text-light);
}

.best-deal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--pro-color);
    color: white;
    border-radius: 12px;
    font-weight: 600;
}

/* Download Section */
.download {
    padding: 6rem 2rem;
    text-align: center;
    background: var(--background);
}

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

.download p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.app-store-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--text-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

.download-note {
    color: var(--text-lighter);
    font-size: 0.875rem;
}

/* Footer Styles */
.footer {
    background-color: var(--section-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

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

.footer-section ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-lighter);
    font-size: 0.9rem;
}

/* Privacy Policy Page Styles */
.privacy-content {
    padding: 2rem 0;
}

.policy-section {
    margin-bottom: 2.5rem;
}

.policy-section:last-child {
    margin-bottom: 0;
}

.policy-section h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.policy-section p {
    color: var(--text-color);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.policy-section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.policy-section ul li {
    color: var(--text-color);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.policy-section ul li strong {
    color: var(--primary-color);
}

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

.policy-section a:hover {
    color: var(--text-light);
    text-decoration: underline;
}

/* Contact Section */
.contact {
    padding: 3rem 2rem;
    text-align: center;
}

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

.contact p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    max-width: 400px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-details {
    text-align: left;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
    line-height: 1.2;
}

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

.contact-details a:hover {
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .showcase-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 6rem 1rem 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .platforms {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .pricing-tiers {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .intro h2, .features h2, .pricing h2, .download h2 {
        font-size: 2rem;
    }
    
    .feature-card, .pricing-tier {
        padding: 2rem 1.5rem;
    }
}