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

:root {
    --primary-color: #4a90d9;
    --primary-dark: #3a7bc8;
    --secondary-color: #6c5ce7;
    --accent-color: #e17055;
    --text-color: #2d3436;
    --text-light: #636e72;
    --background: #f8f9fa;
    --white: #ffffff;
    --gradient-start: #667eea;
    --gradient-end: #764ba2;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.nav-logo {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    padding: 140px 40px 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    width: 400px;
    max-width: 90%;
    margin-bottom: 32px;
    filter: drop-shadow(0 8px 30px rgba(0, 0, 0, 0.3));
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 16px;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    list-style: none;
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    padding-bottom: 40px;
    text-align: left;
}

.hero-features li {
    padding: 8px 0;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.125rem;
}

.btn-template {
    background: #ff9900;
    color: var(--white);
    white-space: nowrap;
}

.btn-template:hover {
    background: #e68a00;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 153, 0, 0.3);
}

/* Template Callout Section */
.template-callout {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 40px 24px;
}

.template-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.template-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.template-text {
    flex: 1;
    min-width: 300px;
}

.template-text h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.template-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    line-height: 1.6;
}

/* Features Section */
.features {
    padding: 100px 24px;
    background: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--background);
    padding: 32px;
    border-radius: 16px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-color);
}

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

/* How It Works */
.how-it-works {
    padding: 100px 24px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    padding: 24px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--white);
    color: var(--gradient-start);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

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

/* Card Preview */
.card-preview {
    padding: 100px 24px;
    background: var(--white);
}

.card-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-description {
    text-align: center;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 50px;
    font-size: 1.125rem;
}

.card-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.card-side {
    background: var(--background);
    padding: 32px;
    border-radius: 16px;
}

.card-side h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--gradient-start);
}

.card-side ul {
    list-style: none;
}

.card-side li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-side li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--gradient-start);
    border-radius: 50%;
}

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

/* Privacy Section */
.privacy {
    padding: 80px 24px;
    background: var(--background);
    text-align: center;
}

.privacy h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.privacy p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.125rem;
}

/* Support Section */
.support {
    padding: 80px 24px;
    background: var(--white);
    text-align: center;
}

.support h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.support p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.125rem;
}

.support a {
    color: var(--gradient-start);
    text-decoration: none;
    font-weight: 500;
}

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

/* CTA Section */
.cta {
    padding: 100px 24px;
    background: var(--text-color);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cta p {
    opacity: 0.8;
    margin-bottom: 40px;
    font-size: 1.125rem;
}

.cta .btn-primary {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
}

.cta .btn-primary:hover {
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: var(--white);
    padding: 60px 24px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    width: 150px;
    margin-bottom: 16px;
}

.footer-brand p {
    opacity: 0.7;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.footer-links a {
    display: block;
    color: var(--white);
    opacity: 0.7;
    text-decoration: none;
    padding: 8px 0;
    transition: opacity 0.2s;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.6;
    font-size: 0.875rem;
}

/* Screenshots Section */
.screenshots {
    padding: 100px 24px;
    background: var(--background);
}

.screenshots h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--text-color);
}

.screenshots .section-description {
    margin-bottom: 60px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.screenshot-item {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.screenshot-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.screenshot-item a {
    display: block;
}

.screenshot-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: top;
    display: block;
    transition: transform 0.3s;
}

.screenshot-item:hover img {
    transform: scale(1.02);
}

.screenshot-item h3 {
    font-size: 1.125rem;
    color: var(--text-color);
    padding: 20px 24px 8px;
}

.screenshot-item p {
    color: var(--text-light);
    padding: 0 24px 24px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.screenshot-item-wide {
    grid-column: 1 / -1;
}

.screenshot-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.screenshot-pair a {
    overflow: hidden;
}

.screenshot-pair img {
    height: 300px;
    object-fit: contain;
    background: #f5f5f5;
    padding: 16px;
}

.screenshot-item-wide h3 {
    text-align: center;
}

.screenshot-item-wide p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 16px 20px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 100px 20px 80px;
    }

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-logo {
        width: 280px;
    }

    .features h2,
    .how-it-works h2,
    .card-preview h2,
    .cta h2 {
        font-size: 2rem;
    }

    .features,
    .how-it-works,
    .card-preview,
    .cta {
        padding: 60px 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

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

    .screenshot-pair {
        grid-template-columns: 1fr;
    }

    .screenshot-pair img {
        height: 200px;
    }

    .screenshots h2 {
        font-size: 2rem;
    }

    .screenshots {
        padding: 60px 20px;
    }

    .template-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .template-text {
        min-width: auto;
    }

    .template-text h3 {
        font-size: 1.25rem;
    }
}