/* ============================================
   .htaccessかんたん生成ツール  style.css
   外部CDN・外部フォントなし（端末標準フォントを使用）
   ============================================ */

:root {
  --bg-0: #0e1320;
  --bg-1: #141b2e;
  --surface: #1b2237;
  --surface-2: #222b44;
  --line: #2e3a59;
  --text: #e8edf7;
  --text-dim: #9aa6c2;
  --text-mute: #6f7c9c;

  --accent: #4f8cff;
  --accent-2: #67e8c3;
  --accent-deep: #2f6bd6;

  --safe: #4ade80;
  --warn: #fbbf24;
  --adv: #f472b6;

  --code-bg: #0a0f1c;
  --code-text: #c7f0e0;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
  --font-base: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Yu Gothic UI", "Meiryo", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Menlo", "Consolas",
    "DejaVu Sans Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.12), transparent 60%),
    radial-gradient(1000px 700px at -10% 20%, rgba(103, 232, 195, 0.08), transparent 55%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
  background-attachment: fixed;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.bg-decoration {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ---------- ヘッダー ---------- */
.site-header { padding: 40px 0 8px; }

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand-text h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
  font-weight: 800;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: 0.98rem;
}

.safe-banner {
  margin-top: 24px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: linear-gradient(135deg, rgba(103, 232, 195, 0.12), rgba(79, 140, 255, 0.08));
  border: 1px solid rgba(103, 232, 195, 0.3);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.safe-icon { font-size: 1.4rem; line-height: 1.4; }
.safe-banner p { margin: 0; font-size: 0.95rem; color: var(--text); }
.safe-banner strong { color: var(--accent-2); }

/* ---------- レイアウト ---------- */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
  align-items: start;
}

.col { display: flex; flex-direction: column; gap: 24px; }

.col-output { position: sticky; top: 20px; }

/* ---------- カード ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  margin: 0 0 4px;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.card-desc {
  margin: 0 0 18px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ---------- プリセット ---------- */
.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.preset-btn {
  text-align: left;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}

.preset-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: #283254;
}

.preset-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.preset-name { font-weight: 700; font-size: 0.98rem; }
.preset-sub { font-size: 0.78rem; color: var(--text-mute); }

/* ---------- オプションリスト ---------- */
.option-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-item {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background 0.15s;
}

.option-item:hover { border-color: #3c4a72; }

.option-label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  cursor: pointer;
}

.option-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}

.option-body { display: flex; flex-direction: column; gap: 3px; }
.option-head {
  font-weight: 600;
  font-size: 0.96rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.option-note { font-size: 0.82rem; color: var(--text-mute); }

/* チェック済みの強調 */
.option-item:has(input:checked) {
  border-color: var(--accent);
  background: #243056;
}

/* ---------- タグ（危険度ラベル） ---------- */
.tag {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.tag-safe { background: rgba(74, 222, 128, 0.16); color: var(--safe); border: 1px solid rgba(74,222,128,0.35); }
.tag-warn { background: rgba(251, 191, 36, 0.16); color: var(--warn); border: 1px solid rgba(251,191,36,0.35); }
.tag-adv  { background: rgba(244, 114, 182, 0.16); color: var(--adv); border: 1px solid rgba(244,114,182,0.35); }

/* ---------- フィールド（詳細設定） ---------- */
.field { margin-bottom: 20px; border: none; padding: 0; }
.field:last-child { margin-bottom: 0; }

.field > label,
.field > legend {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 8px;
  padding: 0;
}

.field input[type="text"] {
  width: 100%;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 11px 14px;
  font-size: 0.95rem;
  font-family: var(--font-mono);
  transition: border-color 0.15s;
}
.field input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.18);
}

.field-help {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: var(--text-mute);
}
.field-help code {
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 6px;
  font-family: var(--font-mono);
}

.radio {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  padding: 6px 0;
  cursor: pointer;
}
.radio input { accent-color: var(--accent); width: 17px; height: 17px; cursor: pointer; }

/* ---------- 生成結果 ---------- */
.output-card { display: flex; flex-direction: column; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  padding: 11px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s, background 0.15s, border-color 0.15s;
}
.btn:hover { transform: translateY(-1px); border-color: var(--accent); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-color: transparent;
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-ghost { background: transparent; color: var(--text-dim); }

.copy-msg {
  display: inline-block;
  min-height: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-2);
  margin-bottom: 8px;
  opacity: 0;
  transition: opacity 0.2s;
}
.copy-msg.show { opacity: 1; }

.code-area {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.6;
  padding: 16px;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}
.code-area:focus { outline: none; border-color: var(--accent); }

/* ---------- 説明ブロック ---------- */
.explain-block { margin-top: 20px; }
.explain-title {
  font-size: 1rem;
  margin: 0 0 10px;
  font-weight: 700;
}
.explain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.explain-list li {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.explain-list li strong { color: var(--text); }
.explain-empty { color: var(--text-mute) !important; }

/* ---------- 注意カード ---------- */
.notice-card {
  border-color: rgba(251, 191, 36, 0.35);
  background: linear-gradient(180deg, rgba(251,191,36,0.05), var(--surface));
}
.notice-list {
  margin: 0;
  padding-left: 1.2em;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
}
.notice-list strong { color: var(--warn); }
.notice-future { color: var(--text-mute); list-style: none; margin-left: -1.2em; padding-top: 6px; }

/* ---------- 戻るリンク・フッター ---------- */
.back-wrap { margin: 36px auto 0; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 0.15s, transform 0.12s;
}
.back-link:hover { border-color: var(--accent); transform: translateX(-3px); }

.site-footer {
  margin-top: 40px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
}
.site-footer p {
  margin: 0;
  text-align: center;
  color: var(--text-mute);
  font-size: 0.82rem;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 860px) {
  .main-grid { grid-template-columns: 1fr; }
  .col-output { position: static; }
}

@media (max-width: 520px) {
  .preset-grid { grid-template-columns: 1fr; }
  .site-header { padding-top: 28px; }
  .card { padding: 18px; }
  .btn { flex: 1 1 auto; }
}