/* Samurai PDF - 紹介ページ（ランディング）。ダークで没入感のある見た目と、スクロールに合わせた動き。 */
body.landing {
    --bg: #090a0f; --panel: #12141b; --panel-2: #181b24; --text: #eceef4; --muted: #9aa3b5; --line: #262b38;
    --accent: #ef4444; --accent-2: #f97316; --accent-soft: rgb(239 68 68 / 14%);
    background: var(--bg); color: var(--text); overflow-x: hidden;
}
body.landing .site-header { background: rgb(9 10 15 / 72%); border-bottom-color: rgb(255 255 255 / 7%); }
body.landing .site-nav a { color: #aab2c4; }
body.landing .site-footer { background: #07080c; border-top: 1px solid var(--line); }
body.landing .draft-banner { display: none; }
body.landing a { color: #fca5a5; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1); }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; } .reveal.d3 { transition-delay: .3s; } .reveal.d4 { transition-delay: .42s; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- ヒーロー ---------- */
.lp-hero { position: relative; padding: 76px 0 40px; text-align: center; overflow: hidden; isolation: isolate; }
.lp-bg { position: absolute; inset: 0; z-index: -1; }
.lp-bg .blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .55; animation: drift 16s ease-in-out infinite alternate; }
.lp-bg .b1 { width: 620px; height: 620px; left: -160px; top: -200px; background: radial-gradient(circle, #dc2626, transparent 68%); }
.lp-bg .b2 { width: 520px; height: 520px; right: -120px; top: 60px; background: radial-gradient(circle, #f97316, transparent 68%); animation-duration: 20s; opacity: .32; }
.lp-bg .b3 { width: 560px; height: 560px; left: 38%; top: 340px; background: radial-gradient(circle, #7c3aed, transparent 68%); animation-duration: 24s; opacity: .26; }
.lp-bg .grid-lines { position: absolute; inset: 0; background-image: linear-gradient(rgb(255 255 255 / 4%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse at 50% 20%, #000 30%, transparent 75%); }
@keyframes drift { from { transform: translate(0, 0) scale(1); } to { transform: translate(60px, 40px) scale(1.15); } }
.lp-eyebrow { display: inline-flex; gap: 8px; align-items: center; margin: 0 0 18px; padding: 6px 16px; border-radius: 999px; border: 1px solid rgb(255 255 255 / 12%); background: rgb(255 255 255 / 5%); font-size: .85rem; color: #d8dce8; }
.lp-eyebrow i { color: #fbbf24; }
.lp-title { margin: 0 0 14px; font-size: clamp(2.4rem, 7.2vw, 5rem); line-height: 1.15; font-weight: 900; letter-spacing: -.02em; }
.lp-title .grad { background: linear-gradient(100deg, #fb7185, #f97316 55%, #fbbf24); -webkit-background-clip: text; background-clip: text; color: transparent; background-size: 200% 100%; animation: sheen 6s linear infinite; }
@keyframes sheen { to { background-position: -200% 0; } }
.lp-typed { margin: 0 0 14px; font-size: clamp(1.1rem, 2.6vw, 1.5rem); font-weight: 700; color: #e9ecf5; }
.typed-word { display: inline-block; min-width: 4.5em; color: #fca5a5; border-bottom: 3px solid rgb(239 68 68 / 60%); padding: 0 6px; margin: 0 4px; }
.caret { display: inline-block; width: 2px; height: 1.1em; background: #fca5a5; vertical-align: -.15em; animation: blink 1s steps(2) infinite; margin-right: 2px; }
@keyframes blink { 50% { opacity: 0; } }
.lp-lead { max-width: 720px; margin: 0 auto 28px; color: var(--muted); font-size: 1.05rem; }
.lp-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.lp-btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 28px; border-radius: 14px; font-weight: 800; font-size: 1rem; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s; }
.lp-btn.lg { padding: 17px 36px; font-size: 1.1rem; }
body.landing .lp-btn.primary { background: linear-gradient(135deg, #ef4444, #f97316); color: #fff; box-shadow: 0 10px 34px rgb(239 68 68 / 38%); }
.lp-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgb(239 68 68 / 50%); }
body.landing .lp-btn.ghost { border: 1px solid rgb(255 255 255 / 18%); color: #fff; background: rgb(255 255 255 / 6%); }
.lp-btn.ghost:hover { background: rgb(255 255 255 / 12%); transform: translateY(-2px); }
.lp-chips { list-style: none; display: flex; gap: 10px 22px; justify-content: center; flex-wrap: wrap; padding: 0; margin: 28px 0 0; color: #b9c0d0; font-size: .88rem; }
.lp-chips i { color: #fb923c; margin-right: 6px; }

/* ブラウザ風の枠と、実際の画面 */
.lp-stage { position: relative; margin: 54px auto 0; max-width: 1040px; perspective: 1600px; }
.browser { position: relative; border-radius: 16px; overflow: hidden; background: #0c0d12; border: 1px solid rgb(255 255 255 / 12%);
    box-shadow: 0 50px 120px rgb(0 0 0 / 65%), 0 0 0 1px rgb(255 255 255 / 4%), 0 0 90px rgb(239 68 68 / 22%); }
.browser.tilt { transform: rotateX(var(--rx, 6deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0px)); transition: transform .25s ease-out; transform-style: preserve-3d; }
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; background: #15171e; border-bottom: 1px solid rgb(255 255 255 / 7%); }
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.browser-bar i:nth-child(2) { background: #febc2e; } .browser-bar i:nth-child(3) { background: #28c840; }
.browser-bar .url { margin-left: 14px; padding: 3px 14px; border-radius: 8px; background: #0c0d12; color: #7b8396; font-size: .74rem; font-style: normal; }
.browser-bar .url i { display: inline; background: none; width: auto; height: auto; border-radius: 0; color: #7b8396; }
.browser-body { position: relative; }
.browser .shot, .browser img { display: block; width: 100%; height: auto; }
.video-toggle { position: absolute; right: 12px; bottom: 12px; width: 36px; height: 36px; border-radius: 50%; border: 0; background: rgb(0 0 0 / 55%); color: #fff; cursor: pointer; backdrop-filter: blur(6px); }
.video-toggle:hover { background: rgb(239 68 68 / 80%); }
.float-chip { position: absolute; z-index: 3; padding: 9px 16px; border-radius: 999px; background: rgb(24 27 36 / 92%); border: 1px solid rgb(255 255 255 / 14%); color: #fff; font-size: .85rem; font-weight: 700; box-shadow: 0 14px 36px rgb(0 0 0 / 45%); backdrop-filter: blur(8px); animation: bob 5s ease-in-out infinite; white-space: nowrap; }
.float-chip i { color: #fb923c; margin-right: 6px; }
.float-chip.c1 { left: -26px; top: 18%; } .float-chip.c2 { right: -30px; top: 40%; animation-delay: -1.6s; } .float-chip.c3 { left: 6%; bottom: -18px; animation-delay: -3s; }
@keyframes bob { 50% { transform: translateY(-12px); } }

/* ---------- 数字 ---------- */
.lp-strip { padding: 40px 0 8px; }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.strip-item { text-align: center; padding: 22px 12px; border-radius: 18px; background: linear-gradient(180deg, rgb(255 255 255 / 5%), rgb(255 255 255 / 1%)); border: 1px solid var(--line); }
.strip-item b { display: block; font-size: 2.6rem; line-height: 1.1; font-weight: 900; background: linear-gradient(135deg, #fff, #fca5a5); -webkit-background-clip: text; background-clip: text; color: transparent; }
.strip-item b small { font-size: 1rem; margin-left: 3px; -webkit-text-fill-color: #fca5a5; }
.strip-item > span { color: var(--muted); font-size: .84rem; }

/* ---------- 共通の見出し ---------- */
.lp-section { padding: 96px 0; position: relative; }
.lp-section.alt { background: linear-gradient(180deg, transparent, rgb(255 255 255 / 2.5%) 20%, rgb(255 255 255 / 2.5%) 80%, transparent); }
.lp-kicker { text-align: center; margin: 0 0 8px; color: #fb923c; font-weight: 800; letter-spacing: .22em; font-size: .78rem; }
.lp-kicker.left { text-align: left; }
.lp-h2 { text-align: center; margin: 0 0 14px; font-size: clamp(1.6rem, 4vw, 2.5rem); line-height: 1.35; font-weight: 900; letter-spacing: -.01em; }
.lp-h2.left { text-align: left; }
.lp-sub { text-align: center; max-width: 700px; margin: 0 auto 36px; color: var(--muted); }
.lp-sub.left { text-align: left; margin-left: 0; }

/* 3ステップ */
.steps3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 46px; position: relative; }
.steps3::before { content: ""; position: absolute; left: 12%; right: 12%; top: 54px; height: 2px; background: repeating-linear-gradient(90deg, rgb(239 68 68 / 60%) 0 10px, transparent 10px 20px); z-index: 0; }
.step3 { position: relative; z-index: 1; text-align: center; padding: 28px 22px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); transition: transform .3s, border-color .3s; }
.step3:hover { transform: translateY(-6px); border-color: rgb(239 68 68 / 55%); }
.step3 .num { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg, #ef4444, #f97316); font-weight: 900; box-shadow: 0 6px 20px rgb(239 68 68 / 45%); }
.step3 > i { display: block; font-size: 2rem; margin: 10px 0 12px; color: #fb923c; }
.step3 h3 { margin: 0 0 6px; font-size: 1.15rem; }
.step3 p { margin: 0; color: var(--muted); font-size: .92rem; }

/* 機能（実画面） */
.feature { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; margin-top: 90px; }
.feature.flip { grid-template-columns: 1.25fr 1fr; }
.feature-text h3 { font-size: clamp(1.35rem, 2.6vw, 1.9rem); line-height: 1.45; margin: 14px 0 14px; font-weight: 900; }
.feature-text p { color: var(--muted); }
.feature-text strong { color: #fff; }
.tag-pill { display: inline-flex; gap: 7px; align-items: center; padding: 5px 14px; border-radius: 999px; background: var(--accent-soft); color: #fca5a5; font-size: .8rem; font-weight: 800; border: 1px solid rgb(239 68 68 / 35%); }
.tag-pill.elite { background: linear-gradient(135deg, rgb(245 158 11 / 22%), rgb(239 68 68 / 22%)); color: #fcd34d; border-color: rgb(245 158 11 / 45%); }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 28px; font-size: .94rem; color: #cfd5e3; }
.ticks li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-size: .62rem; background: rgb(239 68 68 / 20%); color: #fca5a5; }
kbd { padding: 1px 7px; border-radius: 6px; border: 1px solid rgb(255 255 255 / 22%); background: rgb(255 255 255 / 8%); font-size: .82em; }
.frame { margin: 0; }
.frame .browser { transition: transform .5s cubic-bezier(.2, .7, .2, 1), box-shadow .5s; }
.frame:hover .browser { transform: translateY(-8px) scale(1.015); box-shadow: 0 60px 130px rgb(0 0 0 / 70%), 0 0 110px rgb(239 68 68 / 30%); }

/* テーマ切り替え */
.theme-demo { max-width: 980px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 24px; }
.seg { display: inline-flex; padding: 5px; gap: 4px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); }
.seg-btn { border: 0; background: transparent; color: var(--muted); padding: 9px 20px; border-radius: 999px; font: inherit; font-weight: 800; cursor: pointer; transition: all .25s; }
.seg-btn i { margin-right: 6px; }
.seg-btn.active { background: linear-gradient(135deg, #ef4444, #f97316); color: #fff; box-shadow: 0 6px 20px rgb(239 68 68 / 40%); }
.browser.wide { width: 100%; }
.theme-stack { position: relative; aspect-ratio: 16 / 10; }
.theme-stack img { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease, transform .6s ease; transform: scale(1.015); }
.theme-stack img.on { opacity: 1; transform: none; }

/* スマホ */
.mobile-row { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center; }
.phone { position: relative; width: min(290px, 78%); margin: 0 auto; padding: 12px; border-radius: 44px; background: linear-gradient(160deg, #2a2d38, #0e0f14); border: 1px solid rgb(255 255 255 / 16%);
    box-shadow: 0 50px 100px rgb(0 0 0 / 60%), 0 0 90px rgb(124 58 237 / 25%); animation: bob 7s ease-in-out infinite; }
.phone img { display: block; width: 100%; height: auto; border-radius: 32px; }
.phone-notch { position: absolute; top: 20px; left: 50%; transform: translateX(-50%); width: 86px; height: 22px; border-radius: 999px; background: #05060a; z-index: 2; }

/* 安心 */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 44px; }
.trust { padding: 26px 22px; border-radius: 20px; background: var(--panel); border: 1px solid var(--line); transition: transform .3s, border-color .3s, background .3s; }
.trust:hover { transform: translateY(-6px); border-color: rgb(239 68 68 / 55%); background: var(--panel-2); }
.trust > i { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; font-size: 1.25rem; margin-bottom: 14px; background: linear-gradient(135deg, rgb(239 68 68 / 25%), rgb(249 115 22 / 18%)); color: #fb923c; }
.trust h3 { margin: 0 0 6px; font-size: 1.05rem; }
.trust p { margin: 0; color: var(--muted); font-size: .88rem; }

/* プラン */
.plan-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; align-items: stretch; }
.plan-card { position: relative; padding: 30px 26px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); transition: transform .3s; }
.plan-card:hover { transform: translateY(-8px); }
.plan-card.hot { border: 1px solid transparent; background: linear-gradient(var(--panel), var(--panel)) padding-box, linear-gradient(135deg, #ef4444, #f97316, #fbbf24) border-box; box-shadow: 0 30px 80px rgb(239 68 68 / 22%); }
.hot-tag { position: absolute; top: -13px; right: 22px; padding: 3px 14px; border-radius: 999px; background: linear-gradient(135deg, #ef4444, #f97316); font-size: .74rem; font-weight: 900; }
.plan-card h3 { margin: 0; font-size: 1.35rem; }
.plan-card .pp { margin: 10px 0 14px; font-size: 1.6rem; font-weight: 900; }
.plan-card .pp small { font-size: .85rem; color: var(--muted); font-weight: 600; }
.plan-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.plan-card li { position: relative; padding-left: 24px; font-size: .92rem; color: #cfd5e3; }
.plan-card li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; color: #fb923c; font-size: .8rem; top: 2px; }
.plan-link { text-align: center; margin-top: 30px; }

/* FAQ */
.faq-wrap { max-width: 800px; }
.faq-wrap details { margin-top: 12px; border-radius: 16px; background: var(--panel); border: 1px solid var(--line); overflow: hidden; transition: border-color .2s; }
.faq-wrap details[open] { border-color: rgb(239 68 68 / 50%); }
.faq-wrap summary { cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 800; position: relative; }
.faq-wrap summary::-webkit-details-marker { display: none; }
.faq-wrap summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: #fb923c; transition: transform .3s; }
.faq-wrap details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-wrap details p { margin: 0; padding: 0 22px 20px; color: var(--muted); animation: fade .4s; }
@keyframes fade { from { opacity: 0; transform: translateY(-6px); } }

/* 最後のひと押し */
.lp-final { position: relative; padding: 110px 0; text-align: center; overflow: hidden; isolation: isolate; }
.final-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; opacity: .3; }
.lp-final::after { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse at 50% 50%, rgb(9 10 15 / 30%), #090a0f 78%), linear-gradient(180deg, #090a0f, transparent 30%, transparent 70%, #07080c); }
.lp-final h2 { margin: 0 0 12px; font-size: clamp(1.8rem, 4.6vw, 3rem); font-weight: 900; }
.lp-final p { color: #c3cadb; margin: 0 0 30px; }

/* ---------- スクロール進捗バー ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 50; background: linear-gradient(90deg, #ef4444, #f97316, #fbbf24); }

@media (max-width: 900px) {
    .feature, .feature.flip, .mobile-row { grid-template-columns: 1fr; gap: 30px; margin-top: 64px; }
    .feature.flip .frame { order: 2; }
    .strip-grid { grid-template-columns: repeat(2, 1fr); }
    .steps3 { grid-template-columns: 1fr; gap: 34px; } .steps3::before { display: none; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .plan-row { grid-template-columns: 1fr; }
    .float-chip { display: none; }
    .lp-section { padding: 70px 0; }
    .lp-hero { padding-top: 48px; }
    .browser.tilt { transform: none !important; }
}
@media (max-width: 520px) { .trust-grid { grid-template-columns: 1fr; } .lp-chips { font-size: .8rem; } }
@media (min-width: 901px) { br.pc { display: inline; } }
@media (max-width: 900px) { br.pc { display: none; } }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .lp-bg .blob, .float-chip, .phone, .lp-title .grad, .caret { animation: none; }
    .browser.tilt { transform: none !important; }
}
.lp-h2, .feature-text h3, .lp-final h2 { text-wrap: balance; }
.lp-sub { text-wrap: pretty; }

.plan-card .plan-apply { margin-top: 18px; width: 100%; justify-content: center; text-align: center; }