/* ============================================================
   かたわら研修：アサーティブに話せるようになるためには
   テイスト：friendly（親しみやすく明るい）
   ============================================================ */
:root{
  --c-base:#fff8f0;        /* warm cream */
  --c-card:#ffffff;
  --c-main:#2d3a4f;        /* soft navy */
  --c-accent:#ff7a5c;      /* warm coral */
  --c-accent-soft:#fff0eb;
  --c-yellow:#ffd166;
  --c-text:#2d3a4f;
  --c-text-muted:#7a8499;
  --c-border:#f0e6d8;
  --shadow-soft:0 .4vw 1.5vw rgba(45,58,79,.06);
  --slide-w:1920px;
  --slide-h:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;background:var(--c-base);color:var(--c-text);font-family:'Hiragino Maru Gothic ProN','Hiragino Kaku Gothic ProN','Helvetica Neue',sans-serif;-webkit-font-smoothing:antialiased}
body{overflow:hidden}

/* ===== Topbar ===== */
.topbar{
  position:fixed;top:0;left:0;right:0;height:60px;
  background:rgba(255,248,240,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  display:flex;align-items:center;padding:0 20px;z-index:50;
}
.hamburger{background:none;border:none;font-size:24px;cursor:pointer;color:var(--c-main);padding:8px 12px;border-radius:8px;transition:background .15s}
.hamburger:hover{background:var(--c-accent-soft)}
.topbar-title{flex:1;text-align:center;font-weight:700;color:var(--c-main);font-size:15px;letter-spacing:.04em}
.topbar-pager{font-size:13px;color:var(--c-text-muted);font-variant-numeric:tabular-nums}

/* ===== Sidebar (overlay, default hidden) ===== */
.backdrop{position:fixed;inset:0;background:rgba(45,58,79,.4);opacity:0;pointer-events:none;transition:opacity .25s;z-index:60}
.backdrop.open{opacity:1;pointer-events:auto}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:320px;background:var(--c-card);
  transform:translateX(-100%);transition:transform .3s ease;z-index:70;
  display:flex;flex-direction:column;border-right:1px solid var(--c-border);
}
.sidebar.open{transform:translateX(0)}
.sidebar-head{padding:24px;font-weight:800;color:var(--c-main);font-size:20px;border-bottom:1px solid var(--c-border)}
.sidebar-list{list-style:none;flex:1;overflow-y:auto;padding:8px 0}
.sidebar-list li{padding:12px 24px;cursor:pointer;font-size:14px;color:var(--c-text);border-left:3px solid transparent;transition:all .15s}
.sidebar-list li:hover{background:var(--c-accent-soft)}
.sidebar-list li.active{border-left-color:var(--c-accent);color:var(--c-accent);font-weight:700;background:var(--c-accent-soft)}
.sidebar-list li .num{display:inline-block;width:24px;color:var(--c-text-muted);font-weight:700;margin-right:8px}
.sidebar-list li.active .num{color:var(--c-accent)}
.sidebar-foot{padding:16px 24px;font-size:12px;color:var(--c-text-muted);border-top:1px solid var(--c-border)}

/* ===== Slide stage ===== */
.slide-stage{
  position:absolute;top:60px;left:0;right:0;bottom:60px;
  background:var(--c-base);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.slide{
  position:absolute;
  width:min(calc(100vw - 80px),calc((100vh - 200px) * 16 / 9));
  height:min(calc((100vw - 80px) * 9 / 16),calc(100vh - 200px));
  background:var(--c-card);
  border-radius:16px;
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  opacity:0;
  transform:translateX(40px);
  pointer-events:none;
  transition:opacity .35s ease,transform .4s cubic-bezier(.2,.7,.2,1);
  display:flex;flex-direction:column;
}
.slide.active{
  opacity:1;
  transform:translateX(0);
  pointer-events:auto;
}
.slide.prev-out{
  opacity:0;
  transform:translateX(-40px);
}

/* Slide inner content uses container queries via vw of inner stage */
.slide-inner{width:100%;height:100%;display:flex;flex-direction:column;justify-content:center}

/* Slide content scaling: use viewport width as proxy. The 16:9 box uses cqw equivalent. */
@container (min-width:0){}

/* ===== Animations on slide entrance ===== */
@keyframes slideUpFade{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.slide.active .anim{animation:slideUpFade .55s ease both}
.slide.active .anim-d1{animation-delay:.15s}
.slide.active .anim-d2{animation-delay:.3s}
.slide.active .anim-d3{animation-delay:.45s}

/* ===== Controls ===== */
.controls{position:fixed;bottom:80px;right:20px;display:flex;gap:8px;z-index:55}
.ctrl{
  width:48px;height:48px;border-radius:50%;border:none;
  background:var(--c-card);color:var(--c-main);font-size:24px;
  cursor:pointer;box-shadow:var(--shadow-soft);
  display:flex;align-items:center;justify-content:center;
  transition:transform .15s,background .15s;
}
.ctrl:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px)}

/* ===== Notes panel ===== */
.notes-panel{position:fixed;left:0;right:0;bottom:0;background:var(--c-card);border-top:1px solid var(--c-border);z-index:55}
.notes-toggle{width:100%;padding:12px;background:none;border:none;text-align:left;font-size:13px;color:var(--c-text-muted);cursor:pointer;font-weight:600}
.notes-toggle:hover{color:var(--c-accent)}
.notes-body{display:none;padding:0 24px 16px;font-size:13px;line-height:1.8;color:var(--c-text);max-height:180px;overflow-y:auto}
.notes-panel.open .notes-body{display:block}

/* ===== Common slide layout primitives ===== */
.s-pad{padding:5%}
.s-center{display:flex;align-items:center;justify-content:center;text-align:center;height:100%}
.s-h1{font-size:4.5cqw;font-weight:800;color:var(--c-main);line-height:1.25;letter-spacing:.02em}
.s-h2{font-size:3.2cqw;font-weight:800;color:var(--c-main);line-height:1.3}
.s-h3{font-size:2cqw;font-weight:700;color:var(--c-main);line-height:1.4}
.s-body{font-size:1.6cqw;line-height:1.9;color:var(--c-text)}
.s-meta{font-size:1.3cqw;color:var(--c-text-muted);letter-spacing:.05em}
.accent-bar{width:4cqw;height:.35cqw;background:var(--c-accent);border-radius:2px}

/* slide uses container queries for fluid scaling */
.slide{container-type:size}

/* ===== Utility cards ===== */
.card-soft{background:var(--c-accent-soft);border:1px solid var(--c-border);border-radius:1cqw;padding:2cqw}
.card-main{background:var(--c-main);color:#fff;border-radius:1cqw;padding:2.5cqw}
.pill{display:inline-block;padding:.5cqw 1.5cqw;background:var(--c-accent);color:#fff;border-radius:2cqw;font-size:1.1cqw;font-weight:700;letter-spacing:.1em}

/* ===== Memo feature ===== */
.memo-list-btn{
  margin-left:12px;background:var(--c-accent-soft);color:var(--c-accent);
  border:1px solid #ffd6cc;padding:6px 12px;border-radius:18px;cursor:pointer;
  font-size:12px;font-weight:700;display:flex;align-items:center;gap:6px;transition:all .15s;
}
.memo-list-btn:hover{background:var(--c-accent);color:#fff}
.memo-list-btn span{
  background:var(--c-accent);color:#fff;border-radius:10px;
  min-width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;padding:0 5px;
}
.memo-list-btn:hover span{background:#fff;color:var(--c-accent)}
.memo-btn{
  position:fixed;top:80px;right:20px;width:48px;height:48px;border-radius:50%;
  background:var(--c-card);border:none;cursor:pointer;font-size:20px;
  box-shadow:var(--shadow-soft);z-index:54;display:flex;align-items:center;justify-content:center;
  transition:transform .15s,background .15s;
}
.memo-btn:hover{background:var(--c-accent-soft);transform:scale(1.05)}
.memo-dot{
  position:absolute;top:8px;right:8px;width:10px;height:10px;border-radius:50%;
  background:var(--c-accent);display:none;border:2px solid #fff;
}
.memo-btn.has-note .memo-dot{display:block}

/* ===== Modal ===== */
.modal{
  position:fixed;inset:0;background:rgba(45,58,79,.5);
  display:none;align-items:center;justify-content:center;z-index:200;padding:20px;
}
.modal.open{display:flex}
.modal-card{
  background:#fff;border-radius:16px;padding:24px;width:520px;max-width:100%;
  box-shadow:0 20px 60px rgba(0,0,0,.2);display:flex;flex-direction:column;gap:16px;
}
.modal-card-lg{width:680px;max-height:80vh}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.modal-head strong{font-size:16px;color:var(--c-main)}
.modal-sub{font-size:12px;color:var(--c-text-muted);margin-top:4px}
.modal-close{
  background:none;border:none;font-size:24px;cursor:pointer;color:var(--c-text-muted);
  padding:0 8px;line-height:1;
}
.modal-close:hover{color:var(--c-accent)}
#memo-textarea{
  width:100%;min-height:160px;padding:12px;border:1px solid var(--c-border);
  border-radius:8px;font-family:inherit;font-size:14px;line-height:1.6;resize:vertical;
  color:var(--c-text);background:#fff8f0;
}
#memo-textarea:focus{outline:none;border-color:var(--c-accent)}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.btn-primary{
  background:var(--c-accent);color:#fff;border:none;padding:10px 20px;
  border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;transition:background .15s;
}
.btn-primary:hover{background:#e85e44}
.btn-ghost{
  background:none;color:var(--c-text-muted);border:1px solid var(--c-border);
  padding:10px 16px;border-radius:8px;font-size:13px;cursor:pointer;transition:all .15s;
}
.btn-ghost:hover{background:var(--c-accent-soft);color:var(--c-accent);border-color:var(--c-accent)}
.memo-list{
  flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;
  max-height:50vh;padding-right:4px;
}
.memo-list-empty{text-align:center;color:var(--c-text-muted);padding:32px;font-size:13px}
.memo-item{
  background:#fff8f0;border:1px solid var(--c-border);border-radius:8px;padding:12px 16px;
}
.memo-item-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.memo-item-title{font-size:13px;font-weight:700;color:var(--c-accent);cursor:pointer}
.memo-item-title:hover{text-decoration:underline}
.memo-item-text{font-size:13px;color:var(--c-text);line-height:1.7;white-space:pre-wrap}
.memo-item-del{background:none;border:none;color:var(--c-text-muted);cursor:pointer;font-size:14px;padding:2px 6px}
.memo-item-del:hover{color:var(--c-accent)}

/* responsive: small screens */
@media (max-width:800px){
  .topbar-title{font-size:12px}
  .controls{bottom:70px}
}