:root {
    --bg-color: #f6f7fb;
    --accent: #5c6cff;
    --accent-dark: #404cde;
    --text-primary: #20243a;
    --text-secondary: #606478;
    --card-bg: #ffffff;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-color);
    line-height: 1.7;
}
a {
    color: inherit;
    text-decoration: none;
}
.hero {
    background: linear-gradient(135deg, rgba(92, 108, 255, 0.1), rgba(92, 108, 255, 0.3));
    border-bottom: 1px solid rgba(64, 76, 222, 0.15);
    padding: 32px 20px 80px;
    position: relative;
    overflow: hidden;
}
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1040px;
    margin: 0 auto 40px;
}
.logo {
    font-weight: 700;
    font-size: 1.1rem;
}
.contact-button {
    border: none;
    background: rgba(92, 108, 255, 0.18);
    color: var(--accent);
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s ease;
}
.contact-button:hover {
    background: rgba(92, 108, 255, 0.3);
}
.hero-content {
    max-width: 620px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}
.hero-content h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    margin-bottom: 18px;
}
.hero-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(92, 108, 255, 0.35);
}
.secondary {
    background: #fff;
    color: var(--accent);
    border: 1px solid rgba(92, 108, 255, 0.3);
}
.hero-visual {
    position: absolute;
    right: -80px;
    top: 50%;
    transform: translateY(-50%);
    width: 360px;
    height: 360px;
    background: radial-gradient(circle at center, rgba(92, 108, 255, 0.35), transparent 60%);
    filter: blur(0px);
    z-index: 1;
}
.section {
    padding: 80px 20px;
}
.section.accent {
    background: #fff;
}
.section h2 {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    margin-bottom: 30px;
}
.section p {
    max-width: 840px;
    margin: 0 auto 16px;
    color: var(--text-secondary);
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 1040px;
    margin: 0 auto;
}
.feature-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 12px 32px rgba(32, 36, 58, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card h3 {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.2rem;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 34px rgba(32, 36, 58, 0.12);
}
.subscription-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}
.plan {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 12px 32px rgba(32, 36, 58, 0.08);
}
.plan h3 {
    margin-top: 0;
    margin-bottom: 16px;
}
.plan ul {
    padding-left: 18px;
    color: var(--text-secondary);
}
.plan.recommended {
    border: 2px solid rgba(92, 108, 255, 0.25);
    position: relative;
}
.plan .price {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-dark);
}
.plan .note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 20px;
}
.terms-list {
    max-width: 840px;
    margin: 0 auto;
    padding-left: 18px;
    color: var(--text-secondary);
}
.contact {
    text-align: center;
}
.footer {
    text-align: center;
    padding: 24px 12px 40px;
    background: #fff;
    color: var(--text-secondary);
}
@media (max-width: 720px) {
    .nav {
        margin-bottom: 24px;
    }
    .hero {
        padding: 24px 16px 60px;
    }
    .hero-visual {
        display: none;
    }
    .feature-card,
    .plan {
        padding: 24px;
    }
}