:root {
    --bg: #0c1118;
    --panel: #121a24;
    --panel2: #f3f5f7;
    --text: #10151b;
    --muted: #5d6875;
    --white: #fff;
    --accent: #e7ff63;
    --line: #dce1e6;
    --max: 1160px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: #fff;
    line-height: 1.6;
}

.wrap {
    width: min(var(--max), calc(100% - 40px));
    margin: auto;
}

.narrow {
    max-width: 780px;
}

/* Navigation */

.nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(12, 17, 24, .94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #27313d;
}

.nav-inner {
    height: 68px;
    display: flex;
    align-items: center;
    gap: 30px;
}

.brand {
    font-weight: 900;
    font-size: 24px;
    color: #fff;
    text-decoration: none;
    letter-spacing: .06em;
}

.nav nav {
    display: flex;
    gap: 24px;
    margin-left: auto;
}

    .nav nav a,
    .footer-inner a {
        color: #cbd3dc;
        text-decoration: none;
        font-size: 14px;
    }

/* Buttons */

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 13px 20px;
    border-radius: 7px;
    background: var(--accent);
    color: #111;
    text-decoration: none;
    font-weight: 800;
    border: 1px solid var(--accent);
}

    .btn.small {
        padding: 9px 14px;
    }

    .btn.ghost {
        background: transparent;
        color: #fff;
        border-color: #66717e;
    }

    .btn.full {
        width: 100%;
    }

/* Hero */

.hero {
    background: var(--bg);
    color: #fff;
    padding: 88px 0 76px;
}

.hero-grid,
.two {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 64px;
    align-items: center;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: 12px;
    font-weight: 900;
    margin: 0 0 12px;
    color: #687584;
}

.hero .eyebrow,
.assistant .eyebrow,
.final .eyebrow {
    color: var(--accent);
}

h1 {
    font-size: clamp(44px, 6vw, 76px);
    line-height: .98;
    letter-spacing: -.05em;
    margin: 0 0 24px;
    max-width: 780px;
}

h2 {
    font-size: clamp(32px, 4vw, 50px);
    line-height: 1.08;
    letter-spacing: -.035em;
    margin: 0 0 18px;
}

h3 {
    line-height: 1.2;
}

.lead {
    font-size: 20px;
    color: #cbd3dc;
    max-width: 700px;
}

.actions {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-top: 30px;
}

.text-link {
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.micro {
    font-size: 13px;
    color: #8f9aa6;
}

/* Images */

.media img,
.two img,
.steps img {
    width: 100%;
    height: auto;
    display: block;
    max-width: 100%;
    background: #222;
    border: 1px solid #35404c;
}

/* 横長の紹介画像は横幅基準で縮小 */
.wide-media img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 0;
    object-fit: contain;
    background: #222;
    border: 1px solid #35404c;
}

.media figcaption {
    font-size: 12px;
    color: #8995a1;
    margin-top: 8px;
}

.media figcaption {
    font-size: 12px;
    color: #8995a1;
    margin-top: 8px;
}

/* Assistant */

.assistant {
    background: var(--panel);
    color: #fff;
    padding: 72px 0;
    text-align: center;
}

    .assistant .big {
        font-size: 28px;
        font-weight: 800;
        margin: 0 0 12px;
    }

    .assistant p:last-child {
        color: #b9c2cc;
    }

/* Sections */

.section {
    padding: 92px 0;
}

.alt {
    background: var(--panel2);
}

.section-head {
    max-width: 760px;
    margin-bottom: 42px;
}

    .section-head p:last-child {
        color: var(--muted);
    }

/* Demo video */

.video-placeholder {
    padding: 18px;
    background: #101720;
    color: #cbd3dc;
    border-radius: 12px;
    max-width: 900px;
    margin: 0 auto;
}

    .video-placeholder video {
        display: block;
        width: 100%;
        height: auto;
        background: #222;
        border: 1px solid #35404c;
    }

    .video-placeholder span {
        display: block;
        padding: 12px 2px 0;
    }

/* Steps */

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

    .steps article,
    .features article {
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 10px;
        padding: 24px;
    }

    .steps b {
        font-size: 13px;
    }

    .steps img {
        margin-top: 18px;
        min-height: 150px;
    }

/* Features */

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

    .features p,
    .proof p {
        color: var(--muted);
    }

.wide-media {
    margin: 40px 0 0;
}

.proof {
    background: #eef1f4;
}

/* Pricing */

.pricing {
    text-align: center;
}

.price-card {
    margin: 36px auto 0;
    border: 1px solid var(--line);
    box-shadow: 0 18px 60px rgba(10, 20, 30, .08);
    border-radius: 14px;
    padding: 38px;
    text-align: left;
    max-width: 520px;
}

.regular {
    text-align: center;
    color: var(--muted);
    margin: 0;
}

.price {
    text-align: center;
    font-size: 76px;
    font-weight: 900;
    line-height: 1;
    margin: 8px 0;
}

    .price span {
        font-size: 30px;
        vertical-align: top;
    }

.launch {
    text-align: center;
    font-weight: 800;
}

.price-card ul {
    padding-left: 22px;
    margin: 28px 0;
}

/* Trial */

.trial {
    background: #101720;
    color: #fff;
}

    .trial p {
        color: #cbd3dc;
    }

    .trial .eyebrow {
        color: var(--accent);
    }

/* Details */

details {
    border-top: 1px solid #ccd3da;
    padding: 18px 0;
}

    details:last-child {
        border-bottom: 1px solid #ccd3da;
    }

summary {
    font-weight: 800;
    cursor: pointer;
}

details p {
    color: var(--muted);
}

/* Final CTA */

.final {
    background: var(--bg);
    color: #fff;
    text-align: center;
    padding: 86px 0;
}

    .final p {
        color: #bdc6d0;
    }

.center {
    justify-content: center;
}

/* Footer */

footer {
    background: #070b10;
    color: #b9c2cc;
    padding: 50px 0 28px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

    .footer-inner div:last-child {
        display: flex;
        gap: 20px;
        flex-wrap: wrap;
    }

.legal {
    border-top: 1px solid #202833;
    margin-top: 32px;
    padding-top: 20px;
    font-size: 12px;
    color: #717d89;
}

/* Legal */

.legal-section {
    background: #f7f8fa;
}

.legal-block {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 32px;
    margin-top: 24px;
}

    .legal-block h3 {
        font-size: 28px;
        margin: 0 0 18px;
    }

    .legal-block h4 {
        font-size: 17px;
        margin: 28px 0 8px;
    }

    .legal-block p {
        color: var(--muted);
        margin: 0 0 14px;
    }

.legal-updated {
    margin-top: 24px;
    font-size: 12px;
    color: var(--muted);
}

/* Responsive */

@media (max-width: 820px) {
    .nav nav {
        display: none;
    }

    .nav .btn {
        margin-left: auto;
    }

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

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

    .hero {
        padding-top: 60px;
    }

    .section {
        padding: 68px 0;
    }

    .footer-inner {
        flex-direction: column;
    }

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

    .text-link {
        text-align: center;
    }
}