:root {
    --accent: #6c5ce7;
    --accent-dark: #4f46c8;
    --accent-soft: #f0edff;
    --text: #202124;
    --subtext: #5f6368;
    --muted: #8a8f98;
    --border: #e6e7eb;
    --surface: #ffffff;
    --background: #f7f7fa;
    --success: #177245;
    --max-width: 920px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background: var(--background);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

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

a:hover {
    text-decoration: underline;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(230, 231, 235, 0.9);
    background: rgba(247, 247, 250, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(calc(100% - 32px), var(--max-width));
    min-height: 64px;
    margin: 0 auto;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 750;
    letter-spacing: -0.02em;
}

.brand:hover {
    text-decoration: none;
}

.mini-icon {
    position: relative;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: linear-gradient(145deg, #8174ff, #5142d8);
    box-shadow: 0 6px 14px rgba(80, 65, 210, 0.25);
}

.mini-icon::before,
.mini-icon::after {
    content: "";
    position: absolute;
    left: 8px;
    width: 14px;
    height: 9px;
    border: 1.5px solid rgba(255, 255, 255, 0.92);
    border-radius: 3px;
}

.mini-icon::before {
    top: 7px;
}

.mini-icon::after {
    top: 13px;
    background: rgba(255, 255, 255, 0.14);
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 18px;
    font-size: 0.93rem;
}

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

main {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 48px 0 72px;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 62px 54px;
    border: 1px solid var(--border);
    border-radius: 28px;
    background:
        radial-gradient(circle at 82% 18%, rgba(139, 125, 255, 0.24), transparent 34%),
        linear-gradient(145deg, #ffffff 0%, #f5f2ff 100%);
    box-shadow: 0 24px 60px rgba(43, 36, 108, 0.08);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 190px;
    align-items: center;
    gap: 48px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--accent-dark);
    font-size: 0.86rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin-top: 0;
    letter-spacing: -0.035em;
}

h1 {
    margin-bottom: 18px;
    font-size: clamp(2.5rem, 7vw, 4.7rem);
    line-height: 0.98;
}

h2 {
    margin-bottom: 14px;
    font-size: clamp(1.65rem, 4vw, 2.25rem);
}

h3 {
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.hero-copy {
    max-width: 610px;
    margin: 0;
    color: var(--subtext);
    font-size: 1.08rem;
    line-height: 1.72;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 19px;
    border: 1px solid var(--accent);
    border-radius: 12px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 700;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover {
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(80, 65, 210, 0.2);
}

.button.secondary {
    border-color: var(--border);
    background: rgba(255, 255, 255, 0.85);
    color: var(--text);
}

.button.secondary:hover {
    color: var(--text);
}

.app-icon {
    position: relative;
    width: 180px;
    height: 180px;
    border-radius: 42px;
    background: linear-gradient(145deg, #887bff 0%, #5a4ae0 58%, #4333ba 100%);
    box-shadow: 0 28px 50px rgba(71, 55, 184, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.35);
    transform: rotate(3deg);
}

.card-shape {
    position: absolute;
    left: 38px;
    width: 104px;
    height: 64px;
    border: 3px solid rgba(255, 255, 255, 0.94);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.11);
    box-shadow: 0 10px 22px rgba(34, 22, 105, 0.18);
}

.card-shape.one {
    top: 38px;
}

.card-shape.two {
    top: 71px;
    background: rgba(255, 255, 255, 0.19);
}

.card-shape.three {
    top: 104px;
    background: rgba(255, 255, 255, 0.27);
}

.section {
    margin-top: 64px;
}

.section-intro {
    max-width: 700px;
    margin: 0;
    color: var(--subtext);
    line-height: 1.75;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.feature-card,
.info-card,
.faq-item,
.policy-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
}

.feature-card {
    padding: 23px;
}

.feature-card p {
    margin: 0;
    color: var(--subtext);
    font-size: 0.94rem;
    line-height: 1.65;
}

.feature-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin-bottom: 16px;
    border-radius: 11px;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-weight: 800;
}

.privacy-callout {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 28px;
    padding: 30px;
    border: 1px solid #dcd7ff;
    border-radius: 20px;
    background: var(--accent-soft);
}

.privacy-callout p {
    margin: 0;
    color: #4d4872;
    line-height: 1.7;
}

.page-header {
    margin-bottom: 30px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    margin-bottom: 14px;
    font-size: clamp(2rem, 6vw, 3.4rem);
    line-height: 1.05;
}

.page-header p {
    margin: 0;
    color: var(--subtext);
    line-height: 1.7;
}

.content-shell {
    padding: 38px 42px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--surface);
    box-shadow: 0 20px 50px rgba(30, 32, 45, 0.05);
}

.policy-section + .policy-section {
    margin-top: 34px;
}

.policy-section h2 {
    margin-bottom: 10px;
    font-size: 1.35rem;
}

.policy-section p,
.policy-section li {
    color: var(--subtext);
    line-height: 1.78;
}

.policy-section p {
    margin: 0;
}

.policy-section ul {
    margin: 12px 0 0;
    padding-left: 22px;
}

.language-divider {
    margin: 48px 0 38px;
    border: 0;
    border-top: 1px solid var(--border);
}

.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin: 26px 0 48px;
}

.info-card {
    padding: 26px;
}

.info-card p {
    margin: 0;
    color: var(--subtext);
    line-height: 1.7;
}

.info-card .label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.faq-list {
    display: grid;
    gap: 12px;
    margin-top: 22px;
}

.faq-item {
    padding: 22px 24px;
}

.faq-item h3 {
    margin-bottom: 9px;
}

.faq-item p,
.faq-item ol,
.faq-item ul {
    margin-top: 0;
    margin-bottom: 0;
    color: var(--subtext);
    line-height: 1.7;
}

.faq-item ol,
.faq-item ul {
    padding-left: 22px;
}

.notice {
    margin-top: 22px;
    padding: 16px 18px;
    border-left: 4px solid var(--accent);
    border-radius: 8px;
    background: var(--accent-soft);
    color: #4d4872;
    line-height: 1.65;
}

.meta {
    color: var(--muted);
    font-size: 0.9rem;
}

.site-footer {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 0 0 38px;
    color: var(--muted);
    font-size: 0.86rem;
    text-align: center;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 12px;
}

@media (max-width: 760px) {
    .hero {
        padding: 42px 28px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .app-icon {
        width: 150px;
        height: 150px;
        margin: 0 auto;
        border-radius: 36px;
    }

    .card-shape {
        left: 32px;
        width: 86px;
        height: 54px;
    }

    .card-shape.one {
        top: 32px;
    }

    .card-shape.two {
        top: 61px;
    }

    .card-shape.three {
        top: 90px;
    }

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

    .privacy-callout {
        grid-template-columns: 1fr;
    }

    .content-shell {
        padding: 30px 24px;
    }
}

@media (max-width: 560px) {
    .nav {
        align-items: flex-start;
        flex-direction: column;
        padding: 14px 0;
    }

    .nav-links {
        gap: 13px;
    }

    main {
        padding-top: 28px;
    }

    .hero {
        padding: 34px 22px;
        border-radius: 22px;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .content-shell {
        padding: 26px 19px;
        border-radius: 19px;
    }
}