:root {
    --primary: #a02239;
    --primary-dark: #7a1a2b;
    --primary-light: #d92b4b;
    --secondary: #000000;
    --bg: #ffffff;
    --text: #1a1a1a;
    --text-muted: #666666;
    --card-bg: #ffffff;
    --border: #e5e5e5;
    --accent-gradient: linear-gradient(135deg, #a02239 0%, #d92b4b 100%);
    --border-radius: 15px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --font-primary: Arial, Helvetica, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.nav-brand {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: none;
    gap: 28px;
}

.nav-links a {
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.nav-cta {
    padding: 10px 20px;
    background: var(--accent-gradient);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(160, 34, 57, 0.3);
}

.hero {
    position: relative;
    padding: 80px 24px 70px;
    background: linear-gradient(135deg, #fff8f9 0%, #ffffff 50%, #f8f9ff 100%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(160, 34, 57, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.age-badge {
    display: inline-block;
    padding: 6px 14px;
    margin-bottom: 20px;
    background: rgba(160, 34, 57, 0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--secondary);
    margin-bottom: 20px;
}

.hero p {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    justify-content: center;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 14px rgba(160, 34, 57, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(160, 34, 57, 0.35);
}

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

.btn-secondary:hover {
    background: rgba(160, 34, 57, 0.04);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.hero-stats div {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.hero-stats strong {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
}

.hero-stats span {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

section {
    padding: 70px 24px;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 50px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 14px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-muted);
}

.models-section {
    background: #fafafa;
}

.category-block {
    max-width: 1200px;
    margin: 0 auto 50px;
}

.category-block:last-child {
    margin-bottom: 0;
}

.category-block h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 20px;
    padding-left: 10px;
    border-left: 4px solid var(--primary);
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.model-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 14px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.model-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.model-avatar {
    width: 90px;
    height: 120px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--avatar-color) 0%, rgba(0,0,0,0.2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.model-photo {
    width: 140px;
    height: 180px;
    border-radius: 16px;
    object-fit: cover;
    margin-bottom: 14px;
}

.model-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
    text-align: center;
}

.model-tag {
    font-size: 11px;
    color: var(--primary);
    background: rgba(160, 34, 57, 0.08);
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.features-section {
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 30px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.gallery-section {
    background: #f5f5f7;
}

.screenshot-list {
    display: flex;
    flex-direction: column;
    gap: 50px;
    max-width: 1100px;
    margin: 0 auto;
}

.screenshot-item {
    display: flex;
    flex-direction: column;
    gap: 24px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.screenshot-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}

.screenshot-text {
    padding: 0 24px 24px;
}

.screenshot-text h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.screenshot-text p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

.pricing-section {
    background: #fff;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto 30px;
}

.pricing-card {
    position: relative;
    padding: 34px 28px;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

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

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(160, 34, 57, 0.12);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.pricing-card .price {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.pricing-card .tokens {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 26px;
}

.pricing-card li {
    font-size: 14px;
    color: var(--text-muted);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

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

.pricing-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}

.faq-section {
    background: #fafafa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 700;
    color: var(--secondary);
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: 50px;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 22px;
    color: var(--primary);
    font-weight: 300;
}

.faq-item[open] summary::after {
    content: "−";
}

.faq-item p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

.footer {
    background: #111;
    color: #aaa;
    padding: 50px 24px 24px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto 30px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.footer-brand strong {
    color: #fff;
    font-size: 20px;
}

.footer-brand p {
    font-size: 14px;
    margin-top: 6px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    color: #ccc;
    font-size: 14px;
    transition: color 0.2s ease;
}

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

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.footer-legal a {
    color: #888;
    font-size: 13px;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: var(--primary-light);
}

.footer-languages {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.footer-languages a {
    color: #888;
    font-size: 13px;
    padding: 6px 14px;
    border: 1px solid #333;
    border-radius: 20px;
    transition: all 0.2s ease;
}

.footer-languages a:hover {
    color: #fff;
    border-color: var(--primary);
    background: var(--primary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid #333;
    text-align: center;
    font-size: 12px;
    color: #777;
}

.footer-bottom p {
    margin-bottom: 6px;
}

.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 640px) {
    .model-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: 44px;
    }

    .hero-buttons {
        flex-direction: row;
    }
}

@media (min-width: 900px) {
    .nav-links {
        display: flex;
    }

    .hero {
        padding: 110px 40px 90px;
    }

    .hero h1 {
        font-size: 52px;
    }

    section {
        padding: 90px 40px;
    }

    .model-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .screenshot-item {
        flex-direction: row;
        align-items: center;
    }

    .screenshot-item img {
        width: 55%;
        border-bottom: none;
        border-right: 1px solid var(--border);
    }

    .screenshot-reverse {
        flex-direction: row-reverse;
    }

    .screenshot-reverse img {
        border-right: none;
        border-left: 1px solid var(--border);
    }

    .screenshot-text {
        width: 45%;
        padding: 34px;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}