/* s06 — DEMO ①: terrain */
.s06-bg { background:
  radial-gradient(1500px 700px at 50% 62%, rgba(46, 92, 84, .55) 0%, rgba(20, 44, 44, .25) 45%, transparent 75%),
  linear-gradient(180deg, #02070b 0%, #061419 32%, #12302f 58%, #0b1d18 74%, #040b08 100%); }
.s06-gl { position: absolute; inset: 0; }
.s06-vign { position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(1300px 820px at 50% 55%, transparent 55%, rgba(2, 6, 5, .75) 100%),
              linear-gradient(180deg, rgba(2, 7, 6, .82) 0%, rgba(2, 7, 6, 0) 26%, rgba(2, 7, 6, 0) 80%, rgba(2, 7, 6, .7) 100%); }
.s06-labels { position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
.s06-l { position: absolute; left: 0; top: 0; will-change: transform; }
.s06-l.north { font: 700 18px var(--mono); color: var(--cyan); text-align: center; width: 40px; margin: -34px 0 0 -20px; opacity: .85; }
.s06-l.north b { display: block; } .s06-l.north i { font-style: normal; font-size: 14px; }
.s06-l.dg { opacity: 0; transition: opacity .6s var(--ease-out) .8s; }
.slide.s06-st2 .s06-l.dg { opacity: 1; }
.s06-l.dg .ring { position: absolute; left: -16px; top: -16px; width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--red); box-shadow: 0 0 18px var(--red); animation: s06-ping 1.8s var(--ease-out) infinite; }
.s06-l.dg .txt { position: absolute; left: 26px; top: -64px; white-space: nowrap; font: 500 19px var(--font); color: var(--ink); background: rgba(20, 4, 6, .78); border: 1px solid rgba(255, 77, 94, .6); border-radius: 8px; padding: 6px 12px; }
.s06-l.dg .txt::before { content: ''; position: absolute; left: -26px; top: 30px; width: 30px; height: 36px; border-left: 1.5px solid var(--red); border-top: 1.5px solid var(--red); transform: skewX(-36deg); transform-origin: 0 0; opacity: 0; }
.s06-l.dg .txt b { color: var(--red); font-family: var(--mono); }
@keyframes s06-ping { 0% { transform: scale(.6); opacity: 1; } 100% { transform: scale(1.9); opacity: 0; } }

.s06 { pointer-events: none; }
.s06-head { position: absolute; left: 0; top: 0; max-width: 1100px; }
.s06-head h2 { font-size: 66px; text-shadow: 0 6px 40px rgba(0, 0, 0, .7); }
.s06-sub { margin: 14px 0 0; font-size: 22px; color: var(--ink2); }

.s06-hud { position: absolute; right: 0; top: -8px; display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.s06-date { background: rgba(3, 12, 14, .7); border: 1px solid rgba(76, 201, 240, .35); border-radius: 14px; padding: 14px 20px 14px; min-width: 380px; backdrop-filter: blur(8px); }
.s06-date .lab { font-size: 14px; letter-spacing: .14em; color: var(--cyan); }
.s06-date .d { font: 800 52px/1.05 var(--font); letter-spacing: -.02em; font-variant-numeric: tabular-nums; margin-top: 6px; position: relative; height: 56px; }
.s06-date .id { font-size: 14px; color: var(--ink3); position: relative; height: 18px; margin-top: 4px; }
.s06-date .y19, .s06-date .y26 { position: absolute; left: 0; top: 0; transition: opacity .35s, transform .5s var(--ease-out); white-space: nowrap; }
.s06-date .y26 { opacity: 0; transform: translateY(14px); }
.slide.s06-after .s06-date .y19 { opacity: 0; transform: translateY(-14px); }
.slide.s06-after .s06-date .y26 { opacity: 1; transform: none; }
.slide.s06-after .s06-date .d .y26 { color: var(--cyan); }
.s06-date .bar { height: 3px; background: rgba(76, 201, 240, .15); border-radius: 2px; margin-top: 12px; overflow: hidden; }
.s06-date .bar i { display: block; height: 100%; width: 0; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }

.s06-loc { position: absolute; left: -10px; bottom: 6px; width: 250px; background: rgba(3, 10, 8, .62); border: 1px solid var(--line); border-radius: 14px; padding: 10px 10px 10px; backdrop-filter: blur(6px); }
.s06-locsvg { width: 210px; height: 300px; display: block; }
.s06-locsvg .prov { fill: rgba(62, 224, 143, .10); stroke: rgba(170, 230, 200, .35); stroke-width: .5; }
.s06-locsvg .prov.on { fill: rgba(242, 193, 78, .28); stroke: var(--gold); stroke-width: 1; }
.s06-locsvg .old { fill: none; stroke: var(--gold); stroke-width: .8; stroke-dasharray: 2 2; }
.s06-locsvg .arch { fill: rgba(170, 230, 200, .5); stroke: rgba(170, 230, 200, .6); stroke-width: .6; }
.s06-locsvg .archlab { font: 500 14px var(--font); fill: var(--ink2); paint-order: stroke; stroke: rgba(3, 10, 8, .9); stroke-width: 3px; stroke-linejoin: round; }
.s06-locsvg .mark .dot { fill: var(--red); stroke: #fff; stroke-width: 1.2; }
.s06-locsvg .mark .pulse { fill: none; stroke: var(--red); stroke-width: 1.5; transform-box: fill-box; transform-origin: center; animation: s06-ping 1.8s var(--ease-out) infinite; }
.s06-loc .cap { font-size: 13px; line-height: 1.35; color: var(--ink3); padding: 4px 6px 0; }
.s06-loc .cap b { color: var(--gold); font-weight: 600; }

.s06-legend { position: absolute; left: 260px; bottom: 14px; display: flex; gap: 26px; font-size: 19px; color: var(--ink2); background: rgba(3, 10, 8, .62); border: 1px solid var(--line); border-radius: 999px; padding: 10px 22px; backdrop-filter: blur(6px); }
.s06-legend span { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.s06-legend .sw { width: 18px; height: 18px; border-radius: 5px; display: inline-block; }
.s06-legend .sw.loss { background: linear-gradient(135deg, #ff5220, #ff9e26); box-shadow: 0 0 12px rgba(255, 82, 32, .7); }
.s06-legend .sw.hi { border: 2.5px solid var(--red); background: rgba(255, 77, 94, .45); }
.s06-legend .sw.med { border: 2.5px solid var(--amber); background: rgba(255, 176, 32, .3); }

.s06-panel { position: absolute; right: 0; top: 196px; width: 560px; padding: 24px 28px 22px; background: rgba(5, 16, 14, .82); pointer-events: auto; }
.s06-panel .ph { font-size: 15px; letter-spacing: .16em; color: var(--cyan); margin-bottom: 12px; }
.s06-panel dl { display: grid; grid-template-columns: 92px 1fr; gap: 9px 14px; margin: 0; font-size: 19px; line-height: 1.32; }
.s06-panel dt { color: var(--ink3); font-size: 16px; font-family: var(--mono); letter-spacing: .04em; padding-top: 2px; }
.s06-panel dd { margin: 0; color: var(--ink); }
.s06-panel dd.mono { font-size: 15.5px; color: var(--ink2); }
.s06-panel dd b { color: var(--gold); }
.s06-hansen { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.s06-hansen .hn .big-num { font-size: 84px; }
.s06-hansen .hn .unit { font-size: 30px; }
.s06-hansen .ht { font-size: 19px; color: var(--ink2); margin: 4px 0 12px; }
.s06-spark { width: 100%; height: 80px; display: block; }
.s06-spark rect { fill: rgba(180, 205, 191, .32); }
.s06-spark rect.r { fill: var(--red); }
.s06-hansen .sx { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink3); margin-top: 6px; }
.s06-panel p.s06-note { margin: 14px 0 0; font-size: 18px; line-height: 1.35; color: var(--amber); }

/* footer/src clash: lift the source line above the deck footer on the demo slides */
#s06 > .src { bottom: 58px; }
.s06-head h2, .s06-sub { text-shadow: 0 2px 18px rgba(0, 0, 0, .9), 0 0 2px rgba(0, 0, 0, .8); }
.s06-badges { display: flex; gap: 12px; align-items: center; }
.s06-back { font-size: 15px; color: var(--ink2); border: 1px dashed var(--line2); border-radius: 999px; padding: 6px 12px; background: rgba(3, 10, 8, .5); }
/* QA pass: projector legibility */
#s06 > .src { color: var(--ink3); }
.s06-date .lab { font-size: 15px; }
.s06-date .id { font-size: 15px; color: var(--ink2); height: 20px; }
.s06-loc .cap { font-size: 15px; color: var(--ink2); }
.s06-panel dt { color: var(--ink2); }
.s06-panel dd.mono { font-size: 16px; }
.s06-hansen .sx { font-size: 15px; color: var(--ink2); }
.s06-72 { font: 700 20px/1 var(--mono); color: var(--amber); border: 1px solid rgba(255, 176, 32, .5); border-radius: 999px; padding: 7px 12px; background: rgba(255, 176, 32, .06); }
#s06 > .src { background: rgba(2, 7, 6, .72); padding: 4px 10px; border-radius: 8px; color: var(--ink2); }
/* QA: legend must end before the AOI panel (x ≥ 1240) */
#s06 .s06-legend { gap: 20px; font-size: 18px; padding: 10px 20px; max-width: 830px; }
/* glossary chips (step 2), just above the legend pill */
.s06-gloss { left: 260px; bottom: 78px; width: 830px; gap: 10px; flex-wrap: nowrap; }
.s06-gloss .gl-chip { flex: 1 1 0; padding: 7px 12px 7px 10px; line-height: 1.28; }
.s06-legend span span { display: inline; }

/* polish: footer runs over the bright terrain → keep it legible */
body[data-slide="s06"] #footer { text-shadow: 0 0 6px #000, 0 0 2px #000, 0 1px 2px #000; }