/* tutorial.html 専用スタイル
   元コード: web/tutorial.html:14-106（分割時点の HEAD 基準・2026-07-19） */
.tut-wrap { max-width: 760px; margin: 0 auto; padding: 24px 16px 60px; }
.tut-hero {
  background: linear-gradient(135deg, rgba(91,140,255,.12), rgba(167,139,250,.08));
  border: 1px solid rgba(91,140,255,.3);
  border-radius: 16px;
  padding: 28px 24px;
  margin-bottom: 24px;
  text-align: center;
}
.tut-hero h1 { margin: 0 0 8px; font-size: 22px; line-height: 1.4; }
.tut-hero .lead { margin: 8px 0 0; color: var(--text-2); font-size: 14px; line-height: 1.7; }
.tut-step {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 12px;
  padding: 20px 22px;
  margin-bottom: 18px;
  position: relative;
}
.tut-step.done { border-left-color: var(--ok); background: rgba(74,222,128,.04); }
.tut-step.step-1 { border-left-color: #5b8cff; }
.tut-step.step-2 { border-left-color: #f0b73a; }
.tut-step.step-3 { border-left-color: #f472b6; }
.tut-step-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.tut-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-3); border: 2px solid var(--line);
  display: grid; place-items: center;
  font-size: 18px; font-weight: 800; color: var(--text);
  flex-shrink: 0;
}
.tut-step.step-1 .tut-num { background: #5b8cff22; border-color: #5b8cff; color: #5b8cff; }
.tut-step.step-2 .tut-num { background: #f0b73a22; border-color: #f0b73a; color: #f0b73a; }
.tut-step.step-3 .tut-num { background: #f472b622; border-color: #f472b6; color: #f472b6; }
.tut-step.done .tut-num { background: var(--ok); border-color: var(--ok); color: #fff; }
.tut-step.done .tut-num::before { content: "✓"; font-size: 20px; }
.tut-step.done .tut-num span { display: none; }
.tut-title { font-size: 17px; font-weight: 700; margin: 0; line-height: 1.4; }
.tut-subtitle { font-size: 12px; color: var(--text-3); margin-top: 4px; }
.tut-body { font-size: 14px; line-height: 1.75; color: var(--text); margin: 8px 0 14px; padding-left: 58px; }
.tut-body .warn {
  background: rgba(248,113,113,.08);
  border-left: 3px solid #f87171;
  padding: 10px 14px;
  border-radius: 6px;
  margin: 10px 0;
  font-size: 13px;
}
.tut-actions { padding-left: 58px; display: flex; gap: 10px; flex-wrap: wrap; }
.tut-btn {
  padding: 12px 20px;
  border-radius: 8px;
  border: none;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform .1s, box-shadow .15s;
}
.tut-btn:active { transform: scale(.98); }
.tut-btn.primary {
  background: linear-gradient(135deg, var(--accent), #7b9fff);
  color: #fff;
}
.tut-btn.done-mark {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--line);
}
.tut-btn.done-mark.checked { background: var(--ok); color: #fff; border-color: var(--ok); }
.tut-footer-cta {
  margin-top: 28px;
  padding: 22px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: center;
}
.tut-footer-cta h2 { margin: 0 0 10px; font-size: 17px; }
.tut-footer-cta .links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
@media (max-width: 600px) {
  .tut-body, .tut-actions { padding-left: 0; }
  .tut-hero h1 { font-size: 19px; }
  .tut-step { padding: 16px 14px; }
  .tut-title { font-size: 15px; }
  .tut-actions .tut-btn { flex: 1 1 100%; justify-content: center; }
}