@charset "utf-8";

.nojs-overlay {
  display: none;
}

/* JavaScript無効時だけ表示 */
html.no-js .nojs-overlay {
  display: block !important;
  position: fixed !important;
  inset: 0 !important;
  z-index: 2147483647 !important;
  width: 100vw !important;
  height: 100vh !important;
  overflow-y: auto !important;
  overscroll-behavior: contain;
  background:
    radial-gradient(
      1100px 700px at 20% -10%,
      rgba(122, 162, 255, 0.18),
      transparent 60%
    ),
    radial-gradient(
      900px 600px at 90% 10%,
      rgba(255, 209, 102, 0.1),
      transparent 55%
    ),
    #0b0c10 !important;

  color: #e9ecf1 !important;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Hiragino Sans",
    "Noto Sans JP",
    "Yu Gothic",
    sans-serif !important;
  line-height: 1.75 !important;

  --nojs-bg: #0b0c10;
  --nojs-panel: #11131a;
  --nojs-panel2: #0f1016;
  --nojs-text: #e9ecf1;
  --nojs-muted: #b4bccb;
  --nojs-line: #2a2f3a;
  --nojs-accent: #7aa2ff;
  --nojs-ok: #58d68d;
  --nojs-ng: #ff6b6b;
  --nojs-warn: #ffd166;
  --nojs-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --nojs-radius: 16px;
  --nojs-radius2: 12px;
}

/* JavaScript有効時は確実に非表示 */
html.js .nojs-overlay {
  display: none !important;
}

/* JavaScript無効時はローディングを消す */
html.no-js #loading,
html.no-js .loading,
html.no-js .loading__noise,
html.no-js .loading__glitch,
html.no-js .loading__inner {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* JavaScript無効時だけ通常ページのスクロールを止める */
html.no-js,
html.no-js body {
  overflow: hidden !important;
}

/* 案内画面側はスクロール可能 */
html.no-js .nojs-overlay {
  overflow-y: auto !important;
}

/* JavaScript無効時に不要なUIを隠す */
html.no-js .sound-ui,
html.no-js .top,
html.no-js .play-button {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* =========================
   nojs-overlay 内だけの初期化
========================= */

.nojs-overlay,
.nojs-overlay * {
  box-sizing: border-box;
}

.nojs-overlay a {
  color: var(--nojs-accent);
  text-decoration: none;
}

.nojs-overlay a:hover {
  text-decoration: underline;
}

.nojs-overlay img {
  max-width: 100%;
  height: auto;
}

.nojs-overlay code {
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

/* =========================
   レイアウト
========================= */

.nojs-overlay .wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 16px 80px;
}

.nojs-overlay header {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.02)
  );
  border: 1px solid var(--nojs-line);
  border-radius: var(--nojs-radius);
  padding: 22px 18px;
  box-shadow: var(--nojs-shadow);
}

.nojs-overlay .title {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0 0 10px;
  text-align: center;
}

.nojs-overlay .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--nojs-line);
  background: rgba(122, 162, 255, 0.1);
  color: var(--nojs-text);
  font-size: 12px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.nojs-overlay .badge .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--nojs-accent);
  box-shadow: 0 0 0 3px rgba(122, 162, 255, 0.2);
}

/* =========================
   見出し・本文
========================= */

.nojs-overlay h1 {
  font-size: clamp(20px, 3.2vw, 30px);
  margin: 0;
  line-height: 1.25;
  color: var(--nojs-text);
}

.nojs-overlay h2 {
  color: var(--nojs-text);
}

.nojs-overlay h3 {
  color: var(--nojs-text);
}

.nojs-overlay p {
  color: var(--nojs-muted);
}

.nojs-overlay .lead {
  margin: 8px 0 0;
  color: var(--nojs-muted);
  font-size: 14.5px;
}

/* =========================
   グリッド・カード
========================= */

.nojs-overlay .grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 18px;
}

@media (min-width: 860px) {
  .nojs-overlay .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.nojs-overlay .card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.02)
  );
  border: 1px solid var(--nojs-line);
  border-radius: var(--nojs-radius);
  padding: 16px;
  box-shadow: var(--nojs-shadow);
}

.nojs-overlay .card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.nojs-overlay .card p {
  margin: 0 0 10px;
  color: var(--nojs-muted);
}

/* =========================
   リスト・ラベル
========================= */

.nojs-overlay .steps {
  margin: 0;
  padding-left: 18px;
  color: var(--nojs-text);
}

.nojs-overlay .steps li {
  margin: 8px 0;
}

.nojs-overlay .pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--nojs-line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--nojs-text);
  font-size: 12px;
  margin-right: 6px;
  vertical-align: middle;
}

.nojs-overlay .pill.ok {
  background: rgba(88, 214, 141, 0.12);
  border-color: rgba(88, 214, 141, 0.35);
}

.nojs-overlay .pill.ng {
  background: rgba(255, 107, 107, 0.1);
  border-color: rgba(255, 107, 107, 0.35);
}

.nojs-overlay .pill.warn {
  background: rgba(255, 209, 102, 0.1);
  border-color: rgba(255, 209, 102, 0.35);
}

/* =========================
   セクション
========================= */

.nojs-overlay .section {
  margin-top: 18px;
}

.nojs-overlay .section h2 {
  color: var(--nojs-text);
}

/* =========================
   details / summary
========================= */

.nojs-overlay details {
  border: 1px solid var(--nojs-line);
  border-radius: var(--nojs-radius);
  background: rgba(0, 0, 0, 0.18);
  overflow: hidden;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.22);
  margin: 12px 0;
}

.nojs-overlay summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  user-select: none;
  color: var(--nojs-text);
}

.nojs-overlay summary::-webkit-details-marker {
  display: none;
}

.nojs-overlay summary .icon {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--nojs-line);
  background: rgba(255, 255, 255, 0.03);
  font-weight: 700;
  color: var(--nojs-text);
}

.nojs-overlay summary .sumtext {
  flex: 1 1 auto;
}

.nojs-overlay summary .sumtext strong {
  display: block;
  font-size: 15px;
  line-height: 1.25;
  color: var(--nojs-text);
}

.nojs-overlay summary .sumtext span {
  display: block;
  color: var(--nojs-muted);
  font-size: 13px;
  margin-top: 3px;
}

.nojs-overlay .detail-body {
  padding: 0 14px 14px;
  border-top: 1px solid var(--nojs-line);
  color: var(--nojs-text);
}

.nojs-overlay .detail-body p {
  margin: 10px 0;
  color: var(--nojs-muted);
}

/* =========================
   補足ボックス
========================= */

.nojs-overlay .k {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--nojs-line);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 10px 0;
}

.nojs-overlay .k b {
  color: var(--nojs-text);
}

.nojs-overlay .k ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--nojs-muted);
}

.nojs-overlay .k li {
  margin: 6px 0;
}

.nojs-overlay .note {
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: var(--nojs-radius2);
  padding: 12px 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--nojs-muted);
  margin-top: 10px;
  font-size: 13.5px;
}

.nojs-overlay .callout {
  border: 1px solid rgba(122, 162, 255, 0.35);
  border-radius: var(--nojs-radius);
  padding: 14px;
  background: rgba(122, 162, 255, 0.08);
  margin-top: 14px;
}

.nojs-overlay .callout h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.nojs-overlay .callout p {
  margin: 0;
  color: var(--nojs-muted);
  font-size: 13.5px;
}

/* =========================
   目次
========================= */

.nojs-overlay .toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.nojs-overlay .toc a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--nojs-line);
  background: rgba(255, 255, 255, 0.03);
  font-size: 13px;
  color: var(--nojs-accent);
}

.nojs-overlay .toc a:hover {
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

/* =========================
   ショートカットボタン
========================= */

.nojs-overlay .shortcuts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.nojs-overlay .sbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--nojs-line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--nojs-text);
  font-size: 13px;
  text-decoration: none;
}

.nojs-overlay .sbtn:hover {
  background: rgba(255, 255, 255, 0.07);
  text-decoration: none;
}

.nojs-overlay .sbtn .mini {
  font-size: 11px;
  color: var(--nojs-muted);
}

.nojs-overlay .short-note {
  margin: 10px 0 0;
  color: var(--nojs-muted);
  font-size: 13px;
}

/* =========================
   コピーボックス
========================= */

.nojs-overlay code.kv {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--nojs-line);
  border-radius: 10px;
  padding: 2px 8px;
  color: var(--nojs-text);
}

.nojs-overlay .copylist {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.nojs-overlay .copyitem {
  border: 1px solid var(--nojs-line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  padding: 10px;
}

.nojs-overlay .copyhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.nojs-overlay .copytitle {
  font-size: 13px;
  color: var(--nojs-text);
}

.nojs-overlay .copyhint {
  font-size: 12px;
  color: var(--nojs-muted);
  border: 1px solid var(--nojs-line);
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

.nojs-overlay .copyurl {
  display: block;
  width: 100%;
  border: 1px solid var(--nojs-line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.18);
  color: var(--nojs-text);
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.4;
  overflow-x: auto;
  user-select: all;
  -webkit-user-select: all;
}

.nojs-overlay .copybtnfake {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--nojs-line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--nojs-text);
  font-size: 13px;
}

.nojs-overlay .kbd {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--nojs-line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 12px;
  color: var(--nojs-text);
  margin: 0 2px;
}

.nojs-overlay .copy-note {
  margin-top: 8px;
  color: var(--nojs-muted);
  font-size: 13px;
}

/* =========================
   JavaScript無効案内の強調枠
========================= */

.nojs-overlay .no-js-help {
  margin: 18px 0;
  padding: 22px 20px;
  border-radius: 18px;
  border: 2px solid rgba(255, 107, 107, 0.65);
  background: rgba(255, 107, 107, 0.12);
  color: var(--nojs-text);
  box-shadow: 0 10px 30px rgba(120, 0, 0, 0.12);
}

.nojs-overlay .no-js-help h2 {
  margin: 6px 0 10px;
  font-size: clamp(22px, 4vw, 32px);
  line-height: 1.35;
  color: var(--nojs-text) !important;
}

.nojs-overlay .no-js-help p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--nojs-muted);
}

.nojs-overlay .warn-label {
  display: inline-block;
  margin-bottom: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: #d94a4a;
  color: #fff;
}

/* =========================
   JS有効時案内用
   ※no-js方式では基本使わないが、HTMLに残っていても干渉しないようにスコープ化
========================= */

.nojs-overlay .js-ok-return {
  display: none;
}

.nojs-overlay .return-hero {
  margin: 20px 0;
  padding: 28px 22px;
  border-radius: 22px;
  border: 2px solid #222;
  background: linear-gradient(135deg, #ffffff, #f1f1f1);
  text-align: center;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.14);
}

.nojs-overlay .return-hero h2 {
  margin: 8px 0 10px;
  font-size: clamp(26px, 5vw, 42px);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: #222;
}

.nojs-overlay .return-hero p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: #333;
}

.nojs-overlay .return-label {
  display: inline-block;
  margin: 0 0 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: #222;
  color: #fff;
}

.nojs-overlay .return-main-button {
  display: inline-block;
  width: min(100%, 360px);
  padding: 16px 22px;
  border-radius: 999px;
  background: #111;
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.24);
}

.nojs-overlay .return-main-button:hover {
  opacity: 0.86;
  transform: translateY(-1px);
}

.nojs-overlay .return-main-button:focus-visible {
  outline: 3px solid #999;
  outline-offset: 4px;
}

/* =========================
   小画面調整
========================= */

@media (max-width: 480px) {
  .nojs-overlay .wrap {
    padding: 18px 12px 56px;
  }

  .nojs-overlay header {
    padding: 18px 14px;
  }

  .nojs-overlay .card {
    padding: 14px;
  }

  .nojs-overlay summary {
    padding: 12px;
  }

  .nojs-overlay .detail-body {
    padding: 0 12px 12px;
  }

  .nojs-overlay .toc a {
    width: 100%;
    justify-content: center;
  }
}