/* ============================================================
   NUWA AIOps Keynote — Deck layout & components
   depends on tokens.css
   ============================================================ */

/* ---------- Deck / Slide ---------- */
.deck { position: relative; }
.slide {
  position: fixed; inset: 0;
  display: flex; flex-direction: column; justify-content: center;
  padding: clamp(48px, 8vh, 96px) clamp(20px, 6vw, 80px) clamp(96px, 14vh, 140px);
  opacity: 0; visibility: hidden;
  transform: translateY(14px);
  transition: opacity .38s var(--ease), transform .38s var(--ease), visibility 0s linear .4s;
  overflow-y: auto;
}
.slide.active {
  opacity: 1; visibility: visible; transform: none;
  transition: opacity .45s var(--ease), transform .45s var(--ease);
  z-index: 2;
}
.slide-inner { width: 100%; max-width: 940px; margin: 0 auto; }

.snum { color: var(--nuwa-violet); font-weight: 700; font-size: var(--fs-caption); letter-spacing: .18em; }
.kicker { color: var(--nuwa-cyan-700); font-weight: 700; letter-spacing: .12em; font-size: var(--fs-caption); text-transform: uppercase; }
.slide h1 { font-size: var(--fs-display); font-weight: 700; line-height: 1.15; letter-spacing: -.01em; margin: var(--sp-2) 0 var(--sp-3); }
.slide h2.sub { font-size: var(--fs-headline); font-weight: 700; margin: var(--sp-5) 0 var(--sp-2); }
.slide h3 { font-size: var(--fs-title); font-weight: 700; margin: var(--sp-4) 0 var(--sp-2); }
.slide p { margin: 0 0 var(--sp-3); }
.lead { font-size: var(--fs-title); color: var(--ink-soft); font-weight: 400; margin-bottom: var(--sp-4); }
.muted { color: var(--ink-soft); }
.slide ul, .slide ol { margin: 0 0 var(--sp-3); padding-left: 1.35em; }
.slide li { margin-bottom: var(--sp-2); }
.slide li::marker { color: var(--nuwa-cyan); }
.hl { background: linear-gradient(transparent 60%, var(--nuwa-yellow) 60%); padding: 0 2px; font-weight: 500; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; font-size: .92em; }

/* ---------- Flow (arrow steps) ---------- */
.flow { display: flex; flex-wrap: wrap; align-items: stretch; gap: var(--sp-2); margin: var(--sp-3) 0; }
.flow .step { background: var(--cyan-soft); color: var(--nuwa-cyan-700); border-radius: var(--radius-sm); padding: 10px 14px; font-weight: 600; font-size: var(--fs-label); }
.flow .arw { align-self: center; color: var(--nuwa-cyan); font-weight: 700; }
.flow .step.warn { background: var(--yellow-soft); color: #6B7000; }
.flow .step.danger { background: var(--danger-soft); color: #A50E3C; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: var(--sp-4); margin: var(--sp-3) 0; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--sp-5); box-shadow: var(--elev-1); transition: box-shadow .2s var(--ease), transform .2s var(--ease); }
.card:hover { box-shadow: var(--elev-3); transform: translateY(-2px); }
.card .icn { width: 40px; height: 40px; border-radius: 10px; display:grid; place-items:center; font-weight:700; margin-bottom: var(--sp-3); }
.card h3 { margin: 0 0 var(--sp-1); }
.card p { margin: 0; font-size: var(--fs-label); }

/* ---------- Chips ---------- */
.chips { display:flex; flex-wrap:wrap; gap: var(--sp-2); margin: var(--sp-3) 0; }
.tag { display:inline-flex; align-items:center; gap:6px; padding: 6px 12px; border-radius: 999px; font-size: var(--fs-label); font-weight: 500; }
.tag.cyan { background: var(--cyan-soft); color: var(--nuwa-cyan-700); }
.tag.yellow { background: var(--yellow-soft); color: #6B7000; }
.tag.violet { background: var(--violet-soft); color: #4038A8; }
.tag.orange { background: var(--orange-soft); color: #8A6212; }

/* ---------- Callouts ---------- */
.callout { border-radius: var(--radius); padding: var(--sp-4) var(--sp-5); margin: var(--sp-3) 0; border-left: 5px solid; box-shadow: var(--elev-1); }
.callout.key { background: var(--yellow-soft); border-color: var(--nuwa-yellow); }
.callout.info { background: var(--cyan-soft); border-color: var(--nuwa-cyan); }
.callout.note { background: var(--violet-soft); border-color: var(--nuwa-violet); }
.callout.danger { background: var(--danger-soft); border-color: var(--danger); }
.callout b { display:block; margin-bottom: 4px; }
.callout p { margin: 0; }

/* ---------- Expansion panel (折疊) ---------- */
details.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); box-shadow: var(--elev-1); margin: var(--sp-3) 0; overflow: hidden; }
details.panel > summary { list-style:none; cursor:pointer; padding: var(--sp-4) var(--sp-5); font-weight: 600; display:flex; align-items:center; justify-content:space-between; gap: var(--sp-3); }
details.panel > summary::-webkit-details-marker { display:none; }
details.panel > summary .arrow { transition: transform .25s var(--ease); color: var(--nuwa-cyan-700); font-weight:700; font-size: 1.2em; }
details.panel[open] > summary .arrow { transform: rotate(90deg); }
details.panel > summary:hover { background: var(--surface); }
details.panel .body { padding: 0 var(--sp-5) var(--sp-5); color: var(--ink); }
details.panel .body p:last-child { margin-bottom: 0; }

/* ---------- Table ---------- */
.tbl-wrap { overflow-x: auto; margin: var(--sp-3) 0; border: 1px solid var(--line); border-radius: var(--radius); }
table.tbl { width: 100%; border-collapse: collapse; font-size: var(--fs-label); min-width: 520px; }
table.tbl th, table.tbl td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); }
table.tbl th { background: var(--nuwa-cyan-700); color: #fff; font-weight: 600; }
table.tbl tr:last-child td { border-bottom: none; }
table.tbl tbody tr:nth-child(even) { background: var(--surface); }

/* ---------- 待回填 placeholder ---------- */
.todo { display: inline-block; background: var(--yellow-soft); border: 1px dashed var(--mod-orange); color: #8A6212; border-radius: 6px; padding: 1px 8px; font-size: .92em; font-weight: 500; }
.todo::before { content: "✎ "; }

/* ---------- Buttons ---------- */
.btn { display:inline-flex; align-items:center; gap:8px; background: var(--nuwa-cyan-700); color:#fff; border:none; border-radius: 999px; padding: 10px 20px; font-family:inherit; font-size: var(--fs-label); font-weight:600; cursor:pointer; box-shadow: var(--elev-1); text-decoration:none; }
.btn.ghost { background: transparent; color: var(--nuwa-cyan-700); border:1.5px solid var(--nuwa-cyan-700); box-shadow:none; }
.btn.accent { background: var(--nuwa-cyan); color: var(--nuwa-cyan-700); }

/* ---------- Top progress ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 4px; background: var(--line); z-index: 50; }
.progress .fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--nuwa-cyan), var(--nuwa-violet)); transition: width .35s var(--ease); }

/* ---------- Bottom nav bar ---------- */
.navbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3);
  padding: 10px clamp(16px, 5vw, 40px);
  background: rgba(255,255,255,.86); backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
}
.navbar .brand { font-weight: 700; font-size: var(--fs-caption); letter-spacing: .1em; color: var(--nuwa-cyan-700); white-space: nowrap; }
.navbar .brand b { color: var(--nuwa-cyan); }
.dots { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.dots button { width: 10px; height: 10px; padding: 0; border-radius: 999px; border: none; background: var(--line); cursor: pointer; transition: all .2s var(--ease); }
.dots button:hover { background: var(--nuwa-cyan); }
.dots button.on { background: var(--nuwa-cyan); width: 26px; }
.nav-right { display: flex; align-items: center; gap: var(--sp-3); white-space: nowrap; }
.counter { font-variant-numeric: tabular-nums; font-weight: 600; font-size: var(--fs-label); color: var(--ink-soft); }
.counter b { color: var(--ink); }
.iconbtn { width: 38px; height: 38px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--bg); cursor: pointer; font-size: 18px; color: var(--nuwa-cyan-700); display:grid; place-items:center; transition: all .2s var(--ease); }
.iconbtn:hover { border-color: var(--nuwa-cyan); background: var(--cyan-soft); }
.iconbtn:disabled { opacity: .35; cursor: not-allowed; }

/* ---------- Menu overlay (目錄) ---------- */
.menu-btn { position: fixed; top: 16px; right: clamp(16px,5vw,40px); z-index: 60; }
.overlay { position: fixed; inset: 0; z-index: 70; background: rgba(13,52,87,.4); backdrop-filter: blur(4px); display: none; }
.overlay.open { display: block; }
.overlay .sheet { position: absolute; top: 0; right: 0; height: 100%; width: min(420px, 88vw); background: var(--bg); box-shadow: var(--elev-3); padding: var(--sp-6) var(--sp-5); overflow-y: auto; transform: translateX(8px); }
.overlay .sheet h3 { margin: 0 0 var(--sp-4); }
.toc { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0; }
.toc a { display: flex; gap: 12px; align-items: baseline; padding: 12px 12px; border-radius: var(--radius-sm); color: var(--ink); text-decoration: none; }
.toc a:hover { background: var(--surface); }
.toc a.on { background: var(--cyan-soft); color: var(--nuwa-cyan-700); font-weight: 600; }
.toc a .n { color: var(--nuwa-violet); font-weight: 700; font-size: var(--fs-caption); width: 30px; flex: none; }

/* ---------- Hint ---------- */
.hint { position: fixed; bottom: 62px; left: 50%; transform: translateX(-50%); z-index: 40; font-size: var(--fs-caption); color: var(--ink-faint); background: rgba(255,255,255,.8); padding: 4px 12px; border-radius: 999px; opacity: 1; transition: opacity .6s; pointer-events: none; }
.hint.hide { opacity: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .navbar .brand { display: none; }
  .dots { display: none; }
  .slide { padding-bottom: 92px; }
}