/* NIGHTWATCH 公式サイト
   外部フォント・外部スクリプトは読み込みません（第三者への送信を発生させないため）。 */

:root {
  --bg: #0C1520;        /* 夜の藍 */
  --bg-raise: #101B28;
  --panel: #142233;
  --line: #24374D;
  --line-soft: #1B2B3E;
  --text: #E3E8EF;
  --sub: #A9B4C2;
  --dim: #8592A3;
  --moon: #6ECAFB;      /* アイコンの「WATCH」の空色 */
  --moon-soft: rgba(110, 202, 251, .12);
  --lamp: #E9B44C;      /* 注意・TODO用の琥珀 */
  --lamp-soft: rgba(233, 180, 76, .12);
  --calm: #7CC4A4;
  --focus: #9ADAFC;
  --maxw: 1080px;
  --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", "Meiryo", "Noto Sans JP", "Noto Sans CJK JP", system-ui, sans-serif;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .02em;
  font-feature-settings: "palt" 0;
}
img { max-width: 100%; height: auto; }
a { color: var(--text); text-decoration-color: rgba(110,202,251,.55); text-underline-offset: .22em; }
a:hover { color: var(--moon); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
@media (max-width: 480px) { .wrap { padding: 0 16px; } }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; background: var(--moon); color: #10151c; padding: 6px 12px; z-index: 10; }

/* 開発中バナー */
.devbar { background: #17202B; border-bottom: 1px solid var(--line); color: var(--sub); font-size: 13.5px; line-height: 1.6; }
.devbar .wrap { padding-top: 9px; padding-bottom: 9px; display: flex; gap: 10px; align-items: baseline; }
.devbar-dot { flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--lamp); transform: translateY(-1px); }

/* ヘッダー */
.site-head { border-bottom: 1px solid var(--line-soft); background: rgba(12,21,32,.94); position: sticky; top: 0; z-index: 5; backdrop-filter: blur(6px); }
.head-row { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.wordmark { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .26em; font-size: 15px; text-decoration: none; }
.wordmark img { width: 32px; height: 32px; border-radius: 7px; }
.nav-list { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; font-size: 14.5px; }
.nav-list a { text-decoration: none; color: var(--sub); }
.nav-list a:hover, .nav-list a[aria-current] { color: var(--text); }
.nav-list a[aria-current] { box-shadow: 0 2px 0 var(--moon); }
.menu { display: none; position: relative; }
.menu summary { list-style: none; cursor: pointer; font-size: 14px; color: var(--sub); border: 1px solid var(--line); padding: 4px 12px; border-radius: 4px; }
.menu summary::-webkit-details-marker { display: none; }
.menu ul { position: absolute; right: 0; top: 40px; background: var(--panel); border: 1px solid var(--line); list-style: none; margin: 0; padding: 8px 0; min-width: 200px; border-radius: 6px; }
.menu li a { display: block; padding: 9px 18px; text-decoration: none; }
@media (max-width: 760px) {
  .nav-list { display: none; }
  .menu { display: block; }
}

/* ページ見出し */
.page-head { padding: 56px 0 28px; border-bottom: 1px solid var(--line-soft); margin-bottom: 36px; }
.page-head h1 { font-size: clamp(26px, 4vw, 34px); line-height: 1.4; margin: 0 0 10px; letter-spacing: .04em; }
.page-head .lead { color: var(--sub); margin: 0; max-width: 42em; }
.page-body { padding-bottom: 72px; max-width: 46em; }
.prose, .page-body { overflow-wrap: anywhere; }

/* 本文 */
.prose h2, .page-body h2 { font-size: 21px; line-height: 1.5; margin: 52px 0 14px; padding-top: 4px; letter-spacing: .03em; }
.prose h2:first-child, .page-body h2:first-child { margin-top: 0; }
.prose h3, .page-body h3 { font-size: 17px; margin: 30px 0 8px; }
.prose p, .page-body p { margin: 0 0 1.1em; }
.prose ol, .prose ul, .page-body ol, .page-body ul { padding-left: 1.5em; margin: 0 0 1.2em; }
.prose li, .page-body li { margin-bottom: .45em; }
.prose ol.paren { list-style: none; padding-left: 2.2em; counter-reset: p; }
.prose ol.paren > li { counter-increment: p; position: relative; }
.prose ol.paren > li::before { content: "(" counter(p) ")"; position: absolute; left: -2.2em; color: var(--sub); }
.small { font-size: 14px; color: var(--sub); }
.muted { color: var(--sub); }
code { font-family: ui-monospace, Consolas, monospace; font-size: .92em; background: var(--bg-raise); border: 1px solid var(--line-soft); padding: .05em .35em; border-radius: 3px; word-break: break-all; }

/* 表 */
.tbl-wrap { overflow-x: auto; margin: 0 0 1.6em; border: 1px solid var(--line); border-radius: 6px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; line-height: 1.7; }
th, td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line-soft); }
tr:last-child th, tr:last-child td { border-bottom: 0; }
th { color: var(--sub); font-weight: 500; background: var(--bg-raise); width: 30%; min-width: 9em; }
thead th { width: auto; color: var(--text); font-weight: 600; }

/* TODO表示：公開前に必ず埋める箇所 */
.todo { background: var(--lamp-soft); color: var(--lamp); border: 1px dashed rgba(233,180,76,.6); border-radius: 3px; padding: .02em .35em; font-weight: 500; }

/* 状態ラベル */
.st { display: inline-block; font-size: 12.5px; line-height: 1.5; padding: 1px 9px; border-radius: 20px; border: 1px solid var(--line); color: var(--sub); vertical-align: 2px; margin-left: 6px; white-space: nowrap; }
.st-dev { border-color: rgba(233,180,76,.5); color: var(--lamp); }
.st-plan { border-color: var(--line); color: var(--dim); }

/* 注意ボックス */
.note { border-left: 3px solid var(--lamp); background: var(--bg-raise); padding: 16px 20px; margin: 0 0 1.6em; border-radius: 0 6px 6px 0; }
.note p:last-child, .note ul:last-child { margin-bottom: 0; }
.note-title { font-weight: 700; margin: 0 0 .4em; }

/* 規約レイアウト */
.legal-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 56px; padding-bottom: 80px; }
.toc { position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 100px); overflow: auto; font-size: 13.5px; line-height: 1.6; }
.toc-title { color: var(--dim); margin: 0 0 8px; font-size: 13px; }
.toc ol { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--line); }
.toc li { margin: 0; }
.toc a { display: block; padding: 5px 0 5px 14px; color: var(--sub); text-decoration: none; }
.toc a:hover { color: var(--text); }
.legal .prose { max-width: 44em; font-size: 16px; line-height: 1.95; }
.legal .prose h2 { font-size: 18.5px; border-top: 1px solid var(--line-soft); padding-top: 28px; margin-top: 40px; }
.legal .prose h2:first-child { border-top: 0; padding-top: 0; }
.updated { color: var(--dim); font-size: 14px; }
@media (max-width: 900px) {
  .legal-grid { grid-template-columns: minmax(0,1fr); gap: 24px; }
  .toc { position: static; max-height: none; background: var(--bg-raise); border: 1px solid var(--line-soft); border-radius: 6px; padding: 14px 16px; }
}

/* ---------- トップページ ---------- */
.hero { padding: 72px 0 64px; border-bottom: 1px solid var(--line-soft); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero h1 { word-break: keep-all; overflow-wrap: anywhere; font-size: clamp(30px, 5vw, 46px); line-height: 1.38; letter-spacing: .05em; margin: 0 0 22px; font-weight: 700; }
.hero .kicker { color: var(--sub); font-size: 15px; margin: 0 0 18px; }
.hero p.sum { color: var(--sub); font-size: 17px; max-width: 30em; margin: 0 0 28px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 11px 22px; border-radius: 5px; text-decoration: none; font-size: 15px; font-weight: 600; border: 1px solid var(--line); }
.btn-primary { background: var(--moon); color: #07121C; border-color: var(--moon); }
.btn-primary:hover { color: #07121C; background: #96D9FC; }
.btn-ghost:hover { border-color: var(--sub); color: var(--text); }
.btn[aria-disabled="true"] { background: transparent; color: var(--dim); border-style: dashed; pointer-events: none; }

/* 見張りログ（処理の流れの例） */
.watchlog { margin: 0; background: var(--bg-raise); border: 1px solid var(--line); border-radius: 10px; padding: 22px 0 10px; font-variant-numeric: tabular-nums; }
.watchlog-head { display: flex; justify-content: space-between; padding: 0 22px 14px; border-bottom: 1px solid var(--line-soft); font-size: 13px; color: var(--dim); }
.watchlog ol { list-style: none; margin: 0; padding: 6px 0; }
.watchlog li { display: grid; grid-template-columns: 58px 16px 1fr; gap: 10px; align-items: baseline; padding: 9px 22px; font-size: 15px; }
.watchlog time { color: var(--dim); font-size: 13.5px; }
.watchlog .pin { width: 8px; height: 8px; border-radius: 50%; background: var(--line); transform: translateY(-1px); }
.watchlog li.on .pin { background: var(--moon); box-shadow: 0 0 0 0 rgba(110,202,251,.55); animation: lamp 2.4s ease-out infinite; }
.watchlog li.done .pin { background: var(--calm); }
.watchlog li span.what { color: var(--text); }
.watchlog li span.what em { font-style: normal; color: var(--dim); font-size: 13.5px; margin-left: 6px; }
.watchlog-foot { padding: 10px 22px 6px; font-size: 12.5px; color: var(--dim); border-top: 1px solid var(--line-soft); }
@keyframes lamp { 0% { box-shadow: 0 0 0 0 rgba(110,202,251,.55); } 80%, 100% { box-shadow: 0 0 0 9px rgba(110,202,251,0); } }
@media (prefers-reduced-motion: reduce) { .watchlog li.on .pin { animation: none; } }

.band { padding: 64px 0; border-bottom: 1px solid var(--line-soft); }
.band h2 { font-size: clamp(22px, 3vw, 27px); margin: 0 0 10px; letter-spacing: .04em; line-height: 1.5; }
.band .intro { color: var(--sub); max-width: 40em; margin: 0 0 34px; }

.status-row { display: grid; grid-template-columns: 200px minmax(0,1fr); gap: 40px; }
.status-row dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 10px 22px; }
.status-row dt { color: var(--dim); }
.status-row dd { margin: 0; }

.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); border-top: 1px solid var(--line); }
.flow li { padding: 22px 24px 24px 0; border-bottom: 1px solid var(--line-soft); counter-increment: f; }
.flow li:not(:nth-child(3n+1)) { padding-left: 24px; border-left: 1px solid var(--line-soft); }
.flow { counter-reset: f; }
.flow li::before { content: counter(f); display: block; color: var(--moon); font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.flow h3 { margin: 0 0 6px; font-size: 17px; }
.flow p { margin: 0; color: var(--sub); font-size: 15px; }

.principles { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0 40px; }
.principles div { border-top: 2px solid var(--line); padding-top: 16px; }
.principles h3 { margin: 0 0 8px; font-size: 16.5px; }
.principles p { margin: 0; color: var(--sub); font-size: 15px; }

.caution-list { list-style: none; padding: 0; margin: 0; max-width: 46em; }
.caution-list li { padding: 14px 0 14px 22px; border-bottom: 1px solid var(--line-soft); position: relative; }
.caution-list li::before { content: ""; position: absolute; left: 0; top: 25px; width: 8px; height: 2px; background: var(--moon); }

.doclinks { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 40px; list-style: none; padding: 0; margin: 0; }
.doclinks li { border-bottom: 1px solid var(--line-soft); }
.doclinks a { display: block; padding: 13px 0; text-decoration: none; }
.doclinks a span { display: block; color: var(--dim); font-size: 13.5px; }

@media (max-width: 860px) {
  .hero-grid, .status-row { grid-template-columns: 1fr; gap: 36px; }
  .flow { grid-template-columns: 1fr; }
  .flow li, .flow li:not(:nth-child(3n+1)) { padding: 18px 0; border-left: 0; }
  .principles { grid-template-columns: 1fr; gap: 24px; }
  .doclinks { grid-template-columns: 1fr; }
  .hero { padding: 48px 0; }
}

/* FAQ */
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq summary { cursor: pointer; padding: 16px 28px 16px 0; font-weight: 600; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--moon); font-size: 20px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq .a { padding: 0 0 16px; color: var(--sub); }
.faq h2 { margin-top: 44px; }

/* フッター */
.site-foot { background: var(--bg-raise); border-top: 1px solid var(--line); padding: 48px 0 32px; font-size: 14px; }
.fgrid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 28px; margin-bottom: 32px; }
.fhead { color: var(--dim); margin: 0 0 10px; font-size: 13px; }
.fcol ul { list-style: none; margin: 0; padding: 0; }
.fcol li { margin-bottom: 6px; }
.fcol a { text-decoration: none; color: var(--sub); }
.fcol a:hover { color: var(--text); }
.fnote { color: var(--dim); font-size: 13px; line-height: 1.75; max-width: 60em; margin: 0 0 8px; }
.copy { color: var(--dim); font-size: 13px; margin: 20px 0 0; }
@media (max-width: 760px) { .fgrid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 420px) { .fgrid { grid-template-columns: 1fr; } }

/* 404 */
.nf { padding: 96px 0 120px; }
.nf h1 { font-size: 30px; margin: 0 0 12px; }

@media print {
  .site-head, .devbar, .toc, .site-foot { display: none; }
  body { background: #fff; color: #000; }
  .legal-grid { display: block; }
}

/* ヒーローのアプリアイコン */
.hero-icon { display: block; width: 96px; height: 96px; border-radius: 22px; margin: 0 0 22px; }
@media (max-width: 480px) { .hero-icon { width: 76px; height: 76px; border-radius: 17px; } }

/* ---------- 第2回追加 ---------- */
/* ヘッダーの無料体験ボタン */
.head-cta { display: inline-block; margin-left: 22px; padding: 6px 14px; border-radius: 5px; border: 1px solid var(--moon); color: var(--moon); text-decoration: none; font-size: 13.5px; font-weight: 600; white-space: nowrap; }
.head-cta:hover { background: var(--moon-soft); color: var(--moon); }
.nav { display: flex; align-items: center; }
@media (max-width: 760px) { .head-cta { margin-left: 0; margin-right: 10px; padding: 5px 10px; font-size: 13px; } .nav { flex-direction: row-reverse; } }

/* キャラクター */
.chara-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 40px; }
.chara { display: grid; grid-template-columns: 96px minmax(0,1fr); gap: 20px; align-items: start; }
.chara img { width: 96px; height: 96px; border-radius: 50%; border: 2px solid var(--line); }
.chara h3 { margin: 4px 0 4px; font-size: 18px; }
.chara .role { color: var(--sub); font-size: 14.5px; margin: 0 0 10px; }
.say { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin: 0 0 8px; font-size: 15px; }
.say::before { content: ""; position: absolute; left: -7px; top: 14px; width: 12px; height: 12px; background: var(--panel); border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); transform: rotate(45deg); }
.say-inline { display: grid; grid-template-columns: 44px minmax(0,1fr); gap: 12px; align-items: start; margin: 0 0 1.4em; }
.say-inline img { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); }
.say-inline .say { margin: 2px 0 0; }
@media (max-width: 760px) { .chara-row { grid-template-columns: 1fr; gap: 28px; } .chara { grid-template-columns: 72px minmax(0,1fr); } .chara img { width: 72px; height: 72px; } }

/* 料金 */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; margin: 0 0 1.6em; }
.plan { border: 1px solid var(--line); border-radius: 10px; padding: 22px 24px; background: var(--bg-raise); position: relative; }
.plan h3 { margin: 0 0 6px; font-size: 16px; color: var(--sub); font-weight: 600; }
.price { font-size: 32px; font-weight: 700; letter-spacing: .02em; margin: 0; line-height: 1.3; }
.price small { font-size: 15px; font-weight: 500; color: var(--sub); margin-left: 4px; }
.plan .deal { display: inline-block; margin: 10px 0 0; font-size: 14px; color: var(--moon); border: 1px solid rgba(110,202,251,.5); border-radius: 20px; padding: 1px 10px; }
.plan p.small { margin: 10px 0 0; }
@media (max-width: 640px) { .plans { grid-template-columns: 1fr; } }

/* プラン選択（JSなし） */
.pick { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin: 0 0 1.4em; }
.pick input { position: absolute; opacity: 0; pointer-events: none; }
.pick label { display: block; cursor: pointer; border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px 18px 50px; background: var(--bg-raise); position: relative; }
.pick label::before { content: ""; position: absolute; left: 18px; top: 22px; width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--dim); }
.pick input:checked + label { border-color: var(--moon); box-shadow: 0 0 0 1px var(--moon) inset; }
.pick input:checked + label::before { border-color: var(--moon); background: radial-gradient(var(--moon) 45%, transparent 50%); }
.pick input:focus-visible + label { outline: 2px solid var(--focus); outline-offset: 3px; }
.pick .pname { display: block; font-weight: 700; }
.pick .pprice { display: block; font-size: 22px; font-weight: 700; margin: 2px 0; }
.pick .pnote { display: block; color: var(--sub); font-size: 14px; }
.only-year { display: none; }
.checkout:has(#plan-year:checked) .only-year { display: revert; }
.checkout:has(#plan-year:checked) .only-month { display: none; }
@media (max-width: 640px) { .pick { grid-template-columns: 1fr; } }

.stripe-note { border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; margin: 0 0 1.4em; background: var(--bg-raise); }
.stripe-note p { margin: 0 0 .4em; }
.stripe-note p:last-child { margin: 0; }

/* 手順 */
.steps { list-style: none; padding: 0; margin: 0 0 1.6em; counter-reset: s; }
.steps > li { counter-increment: s; position: relative; padding: 0 0 18px 46px; margin: 0; }
.steps > li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--moon); color: var(--moon); font-weight: 700; font-size: 14px; display: grid; place-items: center; }
.steps > li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 34px; bottom: 4px; width: 1px; background: var(--line); }
.steps strong { display: block; }
.steps .muted { font-size: 14.5px; }
.steps li.key strong { color: var(--moon); }

/* 公開範囲 */
.vis { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; margin: 0 0 1.4em; }
.vis div { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; background: var(--bg-raise); font-size: 14.5px; color: var(--sub); }
.vis b { display: block; color: var(--text); font-size: 16px; margin-bottom: 4px; }
.vis .def { border-color: var(--moon); }
.vis .def b::after { content: "初期設定"; font-size: 12px; font-weight: 500; color: var(--moon); border: 1px solid rgba(110,202,251,.5); border-radius: 20px; padding: 0 8px; margin-left: 8px; vertical-align: 2px; }
@media (max-width: 760px) { .vis { grid-template-columns: 1fr; } }

.quiet { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0 40px; }
.quiet div { border-top: 2px solid var(--line); padding-top: 16px; }
.quiet h3 { margin: 0 0 8px; font-size: 16.5px; }
.quiet p { margin: 0; color: var(--sub); font-size: 15px; }
@media (max-width: 860px) { .quiet { grid-template-columns: 1fr; gap: 24px; } }

.price-band { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr); gap: 48px; align-items: center; }
@media (max-width: 860px) { .price-band { grid-template-columns: 1fr; gap: 24px; } }
.under-cta { margin-top: 14px; }
.intro.tight { margin-bottom: 16px; }
.plans.flush { margin: 0; }
.price small { white-space: nowrap; display: inline-block; }
.price-band .plan { padding: 20px; }
.price-band .price { font-size: 28px; }
.menu summary { white-space: nowrap; }
@media (max-width: 480px) {
  .wordmark { letter-spacing: .1em; font-size: 13px; gap: 8px; }
  .wordmark img { width: 28px; height: 28px; }
  .head-cta { padding: 5px 8px; font-size: 12.5px; margin-right: 8px; }
  .menu summary { padding: 4px 9px; font-size: 13px; }
}
@media (max-width: 360px) { .wordmark span.wm-text { display: none; } }