:root {
  color-scheme: dark;
  --ink: #11100e;
  --ink-soft: rgba(17, 16, 14, 0.82);
  --panel: rgba(24, 21, 17, 0.9);
  --panel-solid: #1b1814;
  --papyrus: #f2e8d0;
  --sand: #c9aa72;
  --sand-bright: #ead5a7;
  --copper: #82a28f;
  --blue: #5c94a4;
  --danger: #d07b5d;
  --line: rgba(242, 232, 208, 0.18);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { width: 100%; min-height: 100%; margin: 0; overflow: hidden; background: var(--ink); color: var(--papyrus); }
button, input, select { font: inherit; }
button { color: inherit; }
a { color: var(--sand-bright); text-underline-offset: 3px; }
#app-canvas { position: fixed; inset: 0; display: block; width: 100vw; height: 100vh; touch-action: none; background: radial-gradient(circle at 70% 24%, #806a4b, #191610 68%); }
.sand-webgpu-layer { position: fixed; inset: 0; z-index: 1; display: block; width: 100vw; height: 100vh; pointer-events: none; touch-action: none; }

.screen { position: fixed; inset: 0; z-index: 20; display: none; }
.screen.is-active { display: grid; }
.scroll-panel { max-height: calc(100vh - 48px); overflow: auto; scrollbar-color: var(--sand) transparent; }
.eyebrow { display: block; color: var(--sand); font-size: 0.69rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; }

.loading-screen { place-items: center; background: #15120e; }
.loading-screen::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, rgba(0,0,0,.9), rgba(0,0,0,.16)), url("../assets/generated/interiors/grand-gallery.png") center 58%/cover; opacity: .54; filter: saturate(.78) contrast(1.08); transform: scale(1.03); }
.loading-vignette { position: absolute; inset: 0; background: radial-gradient(circle, transparent 20%, rgba(10,8,5,.78)); }
.loading-card { position: relative; width: min(520px, calc(100vw - 44px)); text-align: center; }
.loading-card h1 { margin: .25rem 0 -.25rem; font-family: Georgia, serif; font-size: clamp(4.8rem, 16vw, 9rem); font-weight: 400; letter-spacing: -.07em; }
.loading-card .subtitle { margin: 0 0 2.5rem; color: var(--sand-bright); font-family: Georgia, serif; font-size: 1.25rem; letter-spacing: .28em; text-transform: uppercase; }
.loading-rule { height: 2px; overflow: hidden; background: rgba(255,255,255,.14); }
.loading-rule span { display: block; width: 0; height: 100%; background: var(--sand-bright); box-shadow: 0 0 16px var(--sand); transition: width .32s ease; }
.loading-meta { display: flex; justify-content: space-between; margin-top: .7rem; color: rgba(242,232,208,.7); font-size: .76rem; }
.error-copy { color: #ffc0a8; }

.title-screen { place-items: center start; padding: clamp(18px, 5vw, 80px); background: linear-gradient(90deg, rgba(10,9,7,.96) 0%, rgba(10,9,7,.68) 43%, rgba(10,9,7,.12) 75%); }
.title-backdrop { position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 69% 30%, rgba(229,187,119,.2), transparent 34%), linear-gradient(180deg, transparent 58%, rgba(12,10,7,.74)); pointer-events: none; }
.title-card { width: min(560px, 100%); padding: clamp(24px, 4vw, 48px); border-left: 1px solid rgba(234,213,167,.38); background: linear-gradient(100deg, rgba(23,20,16,.82), rgba(23,20,16,.15)); backdrop-filter: blur(8px); box-shadow: var(--shadow); }
.title-card h1 { margin: .45rem 0 1.3rem; font-family: Georgia, serif; font-size: clamp(3.2rem, 7.8vw, 6.4rem); font-weight: 400; letter-spacing: -.055em; line-height: .88; }
.title-card h1 em { color: var(--sand-bright); font-size: .45em; font-weight: 400; letter-spacing: .02em; }
.title-card > p { max-width: 44ch; color: rgba(242,232,208,.78); line-height: 1.55; }
.primary-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 2rem; }
.secondary-actions { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 1.4rem; }
.button, .icon-button, .text-button { border: 0; cursor: pointer; }
.button { min-height: 44px; padding: .78rem 1.15rem; border: 1px solid var(--line); background: rgba(255,255,255,.035); border-radius: 3px; font-weight: 700; }
.button:hover, .button:focus-visible { border-color: var(--sand); background: rgba(201,170,114,.12); }
.button-primary { color: #18140e; border-color: var(--sand-bright); background: var(--sand-bright); }
.button-primary:hover, .button-primary:focus-visible { background: #f7e9c8; }
.button-danger { border-color: rgba(208,123,93,.5); color: #ffc2ae; }
.button-danger:hover, .button-danger:focus-visible { border-color: var(--danger); background: rgba(208,123,93,.12); }
.text-button { padding: .35rem 0; color: rgba(242,232,208,.72); border-bottom: 1px solid transparent; background: transparent; }
.text-button:hover, .text-button:focus-visible { color: var(--papyrus); border-bottom-color: var(--sand); }
.disclosure { display: flex; gap: 10px; align-items: flex-start; margin-top: 2.25rem; font-size: .74rem; }
.disclosure span { width: 7px; height: 7px; flex: 0 0 auto; margin-top: .38rem; border-radius: 50%; background: var(--danger); box-shadow: 0 0 0 4px rgba(208,123,93,.15); }

.modal-screen { place-items: center; padding: 24px; background: rgba(10,9,7,.72); backdrop-filter: blur(12px); }
.modal-card { width: min(920px, 100%); padding: clamp(22px, 4vw, 42px); border: 1px solid var(--line); background: linear-gradient(145deg, rgba(34,29,23,.98), rgba(20,18,15,.98)); box-shadow: var(--shadow); }
.modal-card h2 { margin: .35rem 0 1.4rem; font-family: Georgia, serif; font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 400; }
.modal-header { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; }
.control-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.control-grid article { min-height: 165px; padding: 20px; background: var(--panel-solid); }
.control-grid kbd { display: inline-block; min-width: 52px; padding: 7px 9px; border: 1px solid rgba(234,213,167,.36); border-radius: 3px; color: var(--sand-bright); background: #100f0d; box-shadow: inset 0 -2px rgba(255,255,255,.08); text-align: center; }
.control-grid h3 { margin: 1rem 0 .3rem; }
.control-grid p, .access-note { color: rgba(242,232,208,.67); font-size: .85rem; line-height: 1.45; }
.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; }
.compact-card { width: min(430px, 100%); text-align: center; }
.stack-actions { display: grid; gap: 10px; }

.cutscene-screen { grid-template-columns: minmax(0, 1.5fr) minmax(360px, .7fr); background: #0d0c0a; }
.cutscene-art { display: grid; min-height: 45vh; grid-template-columns: 1.35fr .65fr; grid-template-rows: 1fr 1fr; gap: 3px; overflow: hidden; background: #0d0c0a; }
.cutscene-art figure { position: relative; min-width: 0; min-height: 0; margin: 0; overflow: hidden; }
.cutscene-art .cutscene-feature { grid-row: span 2; }
.cutscene-art img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) contrast(1.06); }
.cutscene-art figcaption, .interior-reference-gallery figcaption { position: absolute; right: 8px; bottom: 8px; left: 8px; padding: 7px 9px; color: rgba(242,232,208,.86); background: rgba(12,10,8,.68); font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; backdrop-filter: blur(5px); }
.cutscene-copy { align-self: center; padding: clamp(28px, 5vw, 76px); }
.cutscene-copy h2 { margin: .5rem 0 1.2rem; font-family: Georgia, serif; font-size: clamp(2.4rem, 5vw, 4.8rem); font-weight: 400; line-height: .98; }
.cutscene-copy p { color: rgba(242,232,208,.72); line-height: 1.7; }

.route-intro-screen { grid-template-columns: minmax(0, 1.35fr) minmax(390px, .65fr); background: #0b0a08; }
.route-intro-art { position: relative; min-width: 0; min-height: 0; margin: 0; overflow: hidden; }
.route-intro-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 62%, rgba(10,9,7,.7)); pointer-events: none; }
.route-intro-art img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.72) contrast(1.08); }
.route-intro-art figcaption { position: absolute; right: 14px; bottom: 14px; z-index: 1; padding: 8px 10px; color: rgba(242,232,208,.78); background: rgba(8,7,5,.72); font-size: .66rem; }
.route-intro-copy { align-self: center; max-height: calc(100vh - 44px); padding: clamp(24px, 3vw, 48px); }
.route-intro-copy h2 { margin: .5rem 0 1rem; font-family: Georgia, serif; font-size: clamp(2.5rem, 4vw, 4rem); font-weight: 400; line-height: .98; }
.route-intro-copy > p { color: rgba(242,232,208,.72); line-height: 1.6; }
.route-learning-goals { display: grid; gap: 1px; margin: 20px 0; background: var(--line); }
.route-learning-goals article { display: grid; gap: 4px; padding: 13px 15px; background: rgba(24,21,17,.98); }
.route-learning-goals span { color: rgba(242,232,208,.62); font-size: .78rem; }

[data-confidence="documented"] { --confidence-color: #91b8a2; --confidence-rgb: 145,184,162; }
[data-confidence="reconstructed"] { --confidence-color: #d4aa62; --confidence-rgb: 212,170,98; }
[data-confidence="disputed"] { --confidence-color: #df8068; --confidence-rgb: 223,128,104; }
[data-confidence="unknown"] { --confidence-color: #8c9aae; --confidence-rgb: 140,154,174; }
.confidence-legend { display: flex; flex-wrap: wrap; gap: 7px; margin: 15px 0; }
.confidence-legend span, .confidence-chip { padding: 6px 9px; border: 1px solid rgba(var(--confidence-rgb),.48); color: var(--confidence-color); background: rgba(var(--confidence-rgb),.08); font-size: .65rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }

.experience-ui { position: fixed; inset: 0; z-index: 10; display: none; pointer-events: none; }
.experience-ui.is-active { display: block; }
.experience-ui button, .tour-card { pointer-events: auto; }
.top-bar { position: absolute; top: 0; left: 0; right: 0; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: max(14px, env(safe-area-inset-top)) 18px 10px; background: linear-gradient(180deg, rgba(12,10,8,.74), transparent); }
.brand { display: flex; gap: 10px; align-items: center; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid rgba(234,213,167,.35); font-family: Georgia, serif; font-size: 1.3rem; }
.brand div { display: grid; }
.brand small { color: rgba(242,232,208,.62); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
.era-switch { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 18px; background: rgba(14,12,10,.64); pointer-events: auto; }
.era-switch button { padding: 6px 13px; border: 0; border-radius: 15px; color: rgba(242,232,208,.64); background: transparent; font-size: .72rem; cursor: pointer; }
.era-switch button.is-selected { color: #16130f; background: var(--sand-bright); }
.top-actions { display: flex; justify-content: flex-end; gap: 8px; }
.icon-button { min-width: 38px; min-height: 38px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 2px; background: rgba(14,12,10,.68); }
.tour-card { position: absolute; top: 88px; left: 18px; width: min(340px, calc(100vw - 36px)); padding: 18px; border: 1px solid var(--line); border-left: 2px solid var(--sand); background: rgba(18,16,13,.76); backdrop-filter: blur(12px); transition: opacity .25s; }
.tour-card h2 { margin: .35rem 0 .45rem; font-family: Georgia, serif; font-size: 1.5rem; font-weight: 400; }
.tour-card p { margin: 0; color: rgba(242,232,208,.68); font-size: .8rem; line-height: 1.45; }
.tour-meter { height: 2px; margin-top: 14px; background: rgba(255,255,255,.13); }
.tour-meter span { display: block; width: 0; height: 100%; background: var(--sand); transition: width .4s; }
.route-hud { position: absolute; top: 88px; left: 18px; width: min(370px, calc(100vw - 36px)); padding: 17px 18px; border: 1px solid rgba(145,184,162,.34); border-left: 3px solid #91b8a2; background: rgba(13,16,14,.86); box-shadow: 0 16px 40px rgba(0,0,0,.26); backdrop-filter: blur(12px); pointer-events: auto; }
.route-hud-heading { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.route-hud-heading strong { color: rgba(242,232,208,.62); font-size: .65rem; }
.route-hud h2 { margin: .45rem 0 .35rem; font-family: Georgia, serif; font-size: 1.42rem; font-weight: 400; }
.route-hud p { margin: 0; color: rgba(242,232,208,.64); font-size: .76rem; line-height: 1.42; }
.route-progress { height: 3px; margin-top: 13px; overflow: hidden; background: rgba(255,255,255,.1); }
.route-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, #7da58e, #ead5a7); box-shadow: 0 0 10px rgba(145,184,162,.5); transition: width .35s ease; }
.route-hud-actions { display: flex; gap: 8px; margin-top: 11px; }
.route-hud-actions button { padding: 5px 0; border: 0; color: rgba(242,232,208,.65); background: transparent; font-size: .65rem; cursor: pointer; }
.route-hud-actions button:hover { color: var(--sand-bright); }
body[data-hero-route-active="true"] .tour-card { display: none; }

.evidence-lens { position: absolute; inset: 68px 12px 12px; z-index: -1; opacity: 0; pointer-events: none; transition: opacity .28s ease; }
.evidence-lens i { position: absolute; width: 38px; height: 38px; border-color: rgba(145,184,162,.55); border-style: solid; filter: drop-shadow(0 0 7px rgba(145,184,162,.32)); }
.evidence-lens i:nth-child(1) { top: 0; left: 0; border-width: 1px 0 0 1px; }
.evidence-lens i:nth-child(2) { top: 0; right: 0; border-width: 1px 1px 0 0; }
.evidence-lens i:nth-child(3) { bottom: 0; left: 0; border-width: 0 0 1px 1px; }
.evidence-lens i:nth-child(4) { right: 0; bottom: 0; border-width: 0 1px 1px 0; }
.evidence-lens > span { position: absolute; right: 0; bottom: 0; padding: 4px 7px; color: rgba(189,225,204,.75); background: rgba(7,13,10,.64); font: 700 .58rem/1 ui-monospace, Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
body[data-evidence-lens="true"] .evidence-lens { opacity: 1; }
#evidence-lens-toggle[aria-pressed="true"] { border-color: rgba(145,184,162,.72); color: #c5ead4; background: rgba(84,137,106,.2); }
.evidence-marker { display: inline-block; }
.evidence-interaction { position: absolute; left: 50%; bottom: 12%; display: flex; min-width: 290px; gap: 11px; align-items: center; padding: 10px 13px; border: 1px solid rgba(145,184,162,.52); background: rgba(8,13,10,.9); box-shadow: 0 14px 36px rgba(0,0,0,.34); transform: translateX(-50%); backdrop-filter: blur(9px); pointer-events: none; }
.evidence-interaction kbd { display: grid; width: 34px; height: 34px; flex: 0 0 auto; place-items: center; border: 1px solid rgba(145,184,162,.5); color: #d3f1df; background: rgba(145,184,162,.08); }
.evidence-interaction span { display: grid; gap: 2px; }
.evidence-interaction small { color: rgba(242,232,208,.58); font-size: .66rem; }
.demo-tour-overlay { position: absolute; inset: 0; z-index: 14; display: flex; justify-content: center; align-items: flex-end; padding: 72px 18px 74px; overflow: hidden; pointer-events: none; }
.demo-cinema-bars::before, .demo-cinema-bars::after { content: ""; position: absolute; right: 0; left: 0; z-index: -1; height: clamp(18px, 4.2vh, 50px); background: #050403; box-shadow: 0 0 28px rgba(0,0,0,.8); }
.demo-cinema-bars::before { top: 0; }
.demo-cinema-bars::after { bottom: 0; }
.demo-parchment {
  --quill-x: 8%;
  position: relative;
  width: min(760px, calc(100vw - 36px));
  max-height: min(72vh, 670px);
  padding: clamp(22px, 3.3vw, 38px) clamp(24px, 4vw, 48px);
  overflow: auto;
  color: #2b2116;
  border: 1px solid rgba(83,55,24,.58);
  background:
    linear-gradient(93deg, rgba(91,48,16,.11), transparent 7% 92%, rgba(91,48,16,.14)),
    radial-gradient(ellipse at 20% 9%, rgba(255,255,255,.34), transparent 34%),
    repeating-linear-gradient(4deg, rgba(102,65,25,.035) 0 1px, transparent 1px 5px),
    #dfc58d;
  box-shadow: 0 26px 75px rgba(0,0,0,.68), inset 0 0 55px rgba(82,44,14,.2);
  clip-path: polygon(0 3%, 2% 1%, 7% 2%, 12% 0, 19% 2%, 27% 1%, 35% 2%, 43% 0, 51% 2%, 59% 1%, 68% 2%, 77% 0, 86% 2%, 94% 1%, 100% 3%, 99% 14%, 100% 25%, 99% 36%, 100% 48%, 99% 61%, 100% 73%, 99% 85%, 100% 97%, 94% 99%, 87% 98%, 79% 100%, 70% 98%, 61% 100%, 52% 98%, 43% 100%, 34% 98%, 25% 100%, 16% 98%, 8% 100%, 0 97%, 1% 84%, 0 70%, 1% 56%, 0 42%, 1% 27%);
  scrollbar-color: rgba(74,45,19,.62) transparent;
  transform-origin: 50% 100%;
}
.demo-papyrus-fibers { position: absolute; inset: 0; opacity: .34; background: repeating-radial-gradient(ellipse at 30% 50%, transparent 0 7px, rgba(71,42,17,.09) 8px 9px, transparent 10px 18px); mix-blend-mode: multiply; pointer-events: none; }
.demo-parchment::before { content: ""; position: absolute; inset: 9px; border: 1px double rgba(88,51,20,.36); pointer-events: none; }
.demo-parchment::after { content: ""; position: absolute; right: -4%; bottom: -2px; left: -4%; z-index: 9; height: 0; opacity: 0; background: linear-gradient(0deg, rgba(32,8,1,.98) 0 16%, #f13b0c 20%, #ffac28 24%, #ffe09a 27%, rgba(255,72,10,.72) 30%, transparent 38%); filter: blur(2px) drop-shadow(0 -8px 18px #f84b10); mix-blend-mode: screen; pointer-events: none; }
.demo-parchment[data-phase="arrival"], .demo-parchment[data-phase="travel"] { opacity: 0; transform: translateY(125%) scale(.92); }
.demo-parchment[data-phase="reveal"] { animation: demo-parchment-rise .9s cubic-bezier(.18,.84,.22,1) both; }
.demo-parchment[data-phase="burn"] { animation: demo-incinerate 1.45s cubic-bezier(.62,.02,.86,.36) both; overflow: hidden; }
.demo-parchment[data-phase="burn"]::after { bottom: calc(var(--burn-progress, 0) * 100% - 3%); height: 17%; opacity: 1; animation: demo-burn-front .16s steps(2,end) infinite; }
.demo-parchment-header { position: relative; display: flex; justify-content: space-between; gap: 18px; padding-bottom: 9px; border-bottom: 1px solid rgba(70,43,19,.34); color: #72522c; font: 800 .65rem/1.2 ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
.demo-writing-field { position: relative; min-height: 132px; padding: 16px 0 8px; }
.demo-writing-field h2 { max-width: 92%; margin: 0 0 8px; color: #342415; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.8rem, 4vw, 3.25rem); font-weight: 400; line-height: 1; }
.demo-writing-field p { min-height: 3.2em; margin: 0; color: rgba(49,34,20,.86); font-family: Georgia, "Times New Roman", serif; font-size: clamp(.92rem, 1.6vw, 1.08rem); line-height: 1.55; }
.demo-quill { position: absolute; top: 62%; left: var(--quill-x); z-index: 3; display: none; width: 13px; height: 48px; background: #31251b; clip-path: polygon(44% 0, 100% 10%, 66% 24%, 100% 30%, 62% 44%, 84% 51%, 54% 66%, 56% 100%, 39% 100%, 43% 65%, 0 53%, 38% 44%, 5% 32%, 42% 24%, 10% 12%); filter: drop-shadow(2px 3px 1px rgba(38,24,12,.28)); transform: translate(-50%,-50%) rotate(24deg); image-rendering: pixelated; }
.demo-quill span { position: absolute; right: 3px; bottom: 0; width: 5px; height: 9px; background: #b88337; }
.demo-parchment[data-phase="write"] .demo-quill { display: block; animation: demo-quill-write .62s steps(8,end) infinite; }
.demo-inscription { position: relative; display: grid; grid-template-columns: minmax(130px,.42fr) minmax(0,1fr); gap: 5px 18px; margin: 10px 0 15px; padding: 12px 14px; border: 1px solid rgba(76,48,22,.32); background: rgba(116,76,30,.075); }
.demo-inscription > span { grid-column: 1 / -1; color: #76562e; font: 800 .62rem/1.2 ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: .13em; text-transform: uppercase; }
.demo-glyphs { grid-row: span 3; align-self: center; min-height: 54px; color: #3a2918; font-family: "Segoe UI Historic", "Noto Sans Egyptian Hieroglyphs", serif; font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.15; }
.demo-inscription p { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 3px 0 0; color: #4e371f; }
.demo-inscription p strong::after { content: " ·"; }
.demo-inscription small { grid-column: 2; color: rgba(54,37,21,.7); font-size: .68rem; line-height: 1.35; }
.demo-technology { position: relative; display: grid; gap: 3px; padding-top: 11px; border-top: 1px solid rgba(70,43,19,.32); }
.demo-technology span { color: #76562e; font: 800 .6rem/1.2 ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: .13em; text-transform: uppercase; }
.demo-technology strong { font-size: .74rem; line-height: 1.35; }
.demo-technology small { color: rgba(49,34,20,.62); font: 700 .61rem/1.35 ui-monospace, "SFMono-Regular", Consolas, monospace; }
.demo-embers { position: absolute; inset: 0; z-index: 10; overflow: hidden; pointer-events: none; }
.demo-embers span { --ember-x: 50%; --ember-delay: 0s; --ember-drift: 0px; position: absolute; bottom: -8px; left: var(--ember-x); width: 4px; height: 8px; opacity: 0; background: #ffb12b; box-shadow: 0 0 7px #ff5716; transform: rotate(45deg); }
.demo-parchment[data-phase="burn"] .demo-embers { bottom: calc(var(--burn-progress, 0) * 100%); }
.demo-parchment[data-phase="burn"] .demo-embers span { animation: demo-ember-rise .78s var(--ember-delay) ease-out both; }
.demo-tour-controls { position: absolute; right: 18px; bottom: 16px; z-index: 2; display: flex; gap: 8px; align-items: center; padding: 7px 9px; border: 1px solid var(--line); background: rgba(8,7,5,.82); backdrop-filter: blur(9px); pointer-events: auto; }
.demo-tour-controls .button { min-height: 36px; padding: .5rem .78rem; font-size: .72rem; }
.demo-tour-controls .text-button { padding: .45rem; font-size: .72rem; }
.demo-tour-progress { position: absolute; right: 0; bottom: 0; left: 0; height: 3px; background: rgba(255,255,255,.08); }
.demo-tour-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, #b57a32, #f1d494); box-shadow: 0 0 12px #d99a45; transition: width .25s linear; }
body[data-demo-active="true"] .tour-card, body[data-demo-active="true"] .evidence-badge, body[data-demo-active="true"] .reticle,
body[data-demo-active="true"] .interaction-prompt, body[data-demo-active="true"] .acoustic-readout, body[data-demo-active="true"] .mobile-controls,
body[data-demo-active="true"] .top-bar, body[data-demo-active="true"] .toast, body[data-demo-active="true"] .comfort-status,
body[data-demo-active="true"] .route-hud, body[data-demo-active="true"] .evidence-lens, body[data-demo-active="true"] .evidence-interaction { display: none !important; }

@keyframes demo-parchment-rise {
  0% { opacity: 0; transform: translateY(125%) scale(.92) rotate(1.5deg); }
  68% { opacity: 1; transform: translateY(-2%) scale(1.015) rotate(-.3deg); }
  100% { opacity: 1; transform: translateY(0) scale(1) rotate(0); }
}
@keyframes demo-quill-write {
  0%, 100% { transform: translate(-50%,-50%) rotate(22deg) translateY(0); }
  45% { transform: translate(-50%,-50%) rotate(26deg) translateY(4px); }
}
@keyframes demo-burn-front {
  0%, 100% { filter: blur(2px) drop-shadow(0 -8px 18px #f84b10); transform: translateX(-1%); }
  50% { filter: blur(3px) drop-shadow(0 -11px 22px #ff6a16); transform: translateX(1%); }
}
@keyframes demo-incinerate {
  0% { opacity: 1; filter: none; }
  32% { filter: sepia(.25) contrast(1.06); }
  70% { opacity: .92; filter: sepia(.9) saturate(1.6) contrast(1.34) brightness(.72); }
  100% { opacity: 0; filter: sepia(1) brightness(.25); transform: translateY(-5%) scale(.96); }
}
@keyframes demo-ember-rise {
  0% { opacity: 0; transform: translate(0,0) rotate(45deg) scale(.5); }
  18% { opacity: 1; }
  100% { opacity: 0; transform: translate(var(--ember-drift),-190px) rotate(290deg) scale(.15); }
}
.evidence-badge { position: absolute; bottom: 24px; left: 20px; display: flex; gap: 9px; align-items: center; padding: 8px 11px; border: 1px solid var(--line); background: rgba(18,16,13,.68); backdrop-filter: blur(8px); font-size: .68rem; }
.evidence-badge > span { width: 7px; height: 7px; border-radius: 50%; background: var(--copper); }
.evidence-badge[data-evidence="peer-reviewed-muon"] > span { background: var(--blue); }
.evidence-badge[data-evidence="interpretive-landscape"] > span { background: #78a96b; }
.evidence-badge[data-evidence="disputed-sar"] > span { background: var(--danger); }
.reticle { position: absolute; top: 50%; left: 50%; width: 18px; height: 18px; transform: translate(-50%,-50%); opacity: .7; }
.reticle i { position: absolute; background: var(--papyrus); }
.reticle i:first-child { top: 8px; left: 2px; width: 14px; height: 1px; }
.reticle i:last-child { top: 2px; left: 8px; width: 1px; height: 14px; }
.interaction-prompt { position: absolute; left: 50%; bottom: 12%; display: flex; gap: 12px; align-items: center; min-width: 280px; padding: 11px 13px; border: 1px solid var(--line); background: rgba(15,13,10,.86); transform: translateX(-50%); backdrop-filter: blur(10px); }
.interaction-prompt > span { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid rgba(234,213,167,.4); color: var(--sand-bright); }
.interaction-prompt div:nth-child(2) { display: grid; flex: 1; }
.interaction-prompt small { color: rgba(242,232,208,.56); }
.hold-ring { position: relative; width: 28px; height: 28px; overflow: hidden; border: 2px solid rgba(255,255,255,.15); border-radius: 50%; }
.hold-ring span { position: absolute; inset: auto 0 0; height: 0; background: var(--sand); transition: height .08s linear; }
.comfort-status { position: absolute; right: 18px; bottom: 22px; display: flex; gap: 9px; color: rgba(242,232,208,.58); font-size: .6rem; letter-spacing: .09em; }
.toast { position: absolute; top: 86px; left: 50%; max-width: min(460px, calc(100vw - 32px)); padding: 10px 15px; border: 1px solid var(--line); background: rgba(17,15,12,.84); transform: translateX(-50%); font-size: .78rem; }
.acoustic-readout { position: absolute; left: 18px; bottom: 74px; display: grid; gap: 5px; width: min(390px, calc(100vw - 36px)); padding: 12px 14px; border: 1px solid rgba(103,221,245,.5); background: rgba(8,18,20,.9); box-shadow: var(--shadow); pointer-events: auto; }
.acoustic-readout strong { color: #d8f8ff; }
.acoustic-readout small { color: rgba(242,232,208,.66); line-height: 1.45; }
.acoustic-readout-frequency { display: grid; grid-template-columns: 1fr auto; gap: 5px 10px; margin: 4px 0; color: rgba(242,232,208,.76); font-size: .72rem; }
.acoustic-readout-frequency input { grid-column: 1 / -1; width: 100%; accent-color: #67ddf5; }
.acoustic-actions { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; margin-top: 4px; }
.acoustic-actions .button { min-height: 36px; padding: .5rem .8rem; }
.acoustic-actions .text-button { margin-left: auto; color: #67ddf5; }
.acoustic-readout[data-playing="true"] #acoustic-playback-status { color: #9ce9f7; }
.camera-inspector-ui { position: absolute; inset: 0; display: none; pointer-events: none; }
.camera-inspector-ui:not([data-mode="player"]) { display: block; }
.camera-view-labels { position: absolute; inset: 0; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
.camera-view-labels span { padding: 68px 14px 14px; border: 1px solid rgba(100,215,239,.34); color: #d8f8ff; background: linear-gradient(180deg, rgba(5,18,22,.56), transparent 55px); font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.camera-view-labels span:nth-child(n+3) { display: flex; align-items: flex-end; padding: 14px 14px 154px; background: linear-gradient(0deg, rgba(5,18,22,.56), transparent 55px); }
.camera-inspector-ui[data-mode="photo"] .camera-view-labels { display: none; }
.camera-tools { position: absolute; right: 18px; bottom: 18px; left: 18px; display: grid; grid-template-columns: minmax(180px, .7fr) minmax(180px, .8fr) minmax(480px, 2fr) minmax(180px, .8fr); gap: 12px; align-items: center; max-width: 1260px; max-height: min(210px, calc(100vh - 36px)); margin: auto; padding: 13px; overflow: auto; border: 1px solid rgba(100,215,239,.38); background: rgba(9,15,16,.9); box-shadow: var(--shadow); backdrop-filter: blur(12px); pointer-events: auto; }
.camera-tools select { min-height: 42px; padding: 8px; border: 1px solid var(--line); color: var(--papyrus); background: #11191a; }
.camera-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.camera-actions .button { min-height: 38px; padding: .55rem .8rem; }
.camera-tools details { font-size: .76rem; }
.camera-tools summary { color: var(--sand-bright); cursor: pointer; }
.overlay-toggles { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 10px; margin-top: 8px; }
.overlay-toggles label { white-space: nowrap; }
/* The frequency slider lives in the acoustic readout, not the overlay panel;
   .acoustic-readout-frequency carries its own layout. */
.experience-ui[data-camera-mode="inspector"] .tour-card, .experience-ui[data-camera-mode="inspector"] .evidence-badge,
.experience-ui[data-camera-mode="photo"] .tour-card, .experience-ui[data-camera-mode="photo"] .evidence-badge,
.experience-ui[data-camera-mode]:not([data-camera-mode="player"]) .reticle,
.experience-ui[data-camera-mode]:not([data-camera-mode="player"]) .interaction-prompt,
.experience-ui[data-camera-mode]:not([data-camera-mode="player"]) .comfort-status { display: none; }

.map-card, .sources-card { width: min(1040px, 100%); }
.field-notebook { width: min(1080px, 100%); }
.notebook-summary { display: grid; gap: 4px; margin: 2px 0 14px; padding: 14px 16px; border: 1px solid var(--line); background: rgba(255,255,255,.025); }
.notebook-summary > div:first-child { display: flex; justify-content: space-between; gap: 18px; }
.notebook-summary span { color: rgba(242,232,208,.58); font-size: .74rem; }
.notebook-entries { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; margin-top: 16px; }
.notebook-entry { display: grid; grid-template-columns: 38px 1fr auto; gap: 10px; align-items: center; min-height: 82px; padding: 11px 13px; border: 1px solid rgba(var(--confidence-rgb),.28); border-left: 3px solid var(--confidence-color); color: var(--papyrus); background: rgba(var(--confidence-rgb),.035); text-align: left; cursor: pointer; }
.notebook-entry:hover, .notebook-entry:focus-visible { border-color: var(--confidence-color); background: rgba(var(--confidence-rgb),.09); }
.notebook-entry.is-locked { opacity: .48; }
.notebook-entry > span:first-child { color: var(--confidence-color); font-family: Georgia, serif; font-size: 1.25rem; }
.notebook-entry div { display: grid; gap: 3px; }
.notebook-entry small { color: rgba(242,232,208,.56); }
.notebook-entry > i { width: 9px; height: 9px; border: 1px solid var(--confidence-color); border-radius: 50%; }
.notebook-entry.is-found > i { background: var(--confidence-color); box-shadow: 0 0 9px rgba(var(--confidence-rgb),.58); }

.evidence-detail { width: min(900px, 100%); border-top: 3px solid var(--confidence-color); }
.evidence-detail-header { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.evidence-detail-header h2 { margin-bottom: .55rem; }
.evidence-lead { max-width: 68ch; color: rgba(242,232,208,.84); font-family: Georgia, serif; font-size: 1.15rem; line-height: 1.55; }
.evidence-explanation { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 20px 0; }
.evidence-explanation section { padding: 16px 17px; border: 1px solid var(--line); background: rgba(255,255,255,.022); }
.evidence-explanation h3, .evidence-source-block h3 { margin: 0 0 8px; color: var(--sand-bright); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; }
.evidence-explanation p { margin: 0; color: rgba(242,232,208,.66); font-size: .84rem; line-height: 1.55; }
.evidence-epigraphy { margin: 14px 0; padding: 15px 17px; border: 1px solid rgba(212,170,98,.35); background: rgba(212,170,98,.06); }
.evidence-epigraphy p { margin: 7px 0; color: rgba(242,232,208,.8); }
.evidence-epigraphy small { color: rgba(242,232,208,.58); line-height: 1.45; }
.evidence-source-block { padding-top: 15px; border-top: 1px solid var(--line); }
.evidence-source-block a { display: block; margin: 5px 0; font-size: .78rem; }
.evidence-next-hint { margin: 16px 0 0; padding: 10px 12px; border-left: 2px solid var(--confidence-color); color: rgba(242,232,208,.68); background: rgba(var(--confidence-rgb),.05); font-size: .8rem; }
.route-complete { width: min(760px, 100%); text-align: center; }
.route-complete > p { max-width: 62ch; margin-right: auto; margin-left: auto; color: rgba(242,232,208,.68); line-height: 1.55; }
.route-complete-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin: 24px 0; background: var(--line); }
.route-complete-stats article { display: grid; gap: 4px; padding: 20px 12px; background: var(--panel-solid); }
.route-complete-stats strong { color: #b9ddc8; font-family: Georgia, serif; font-size: 1.7rem; }
.route-complete-stats span { color: rgba(242,232,208,.56); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }
.map-layer-tabs { display: flex; gap: 8px; margin: -6px 0 18px; }
.map-layer-tabs button { padding: 9px 14px; border: 1px solid var(--line); color: rgba(242,232,208,.72); background: rgba(255,255,255,.025); cursor: pointer; }
.map-layer-tabs button.is-selected { border-color: #67ddf5; color: #fff7df; background: rgba(35,171,204,.14); box-shadow: inset 0 -2px #67ddf5; }
.map-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; }
.map-graphic { position: relative; align-self: start; width: 100%; height: 430px; min-height: 430px; overflow: hidden; isolation: isolate; border: 1px solid var(--line); background: radial-gradient(ellipse at 22% 28%, rgba(212,178,116,.34), transparent 22%), linear-gradient(160deg, #403724, #181612); }
.map-graphic::before { content: ""; position: absolute; inset: -20%; z-index: -1; background-image: repeating-radial-gradient(ellipse, transparent 0 22px, rgba(255,255,255,.035) 23px 24px); transform: rotate(-19deg); pointer-events: none; }
.map-pyramid { position: absolute; z-index: 1; display: grid; width: 112px; aspect-ratio: 1; place-items: center; color: rgba(242,232,208,.82); border: 1px solid rgba(242,232,208,.32); transform: rotate(45deg); font-size: .7rem; }
.map-pyramid::first-line { transform: rotate(-45deg); }
.map-pyramid.khufu { top: 44px; right: 90px; }
.map-pyramid.khafre { top: 186px; left: 128px; width: 102px; }
.map-pyramid.menkaure { bottom: 42px; left: 48px; width: 62px; }
.map-route { position: absolute; top: 120px; right: 165px; z-index: 1; width: 260px; height: 210px; border-left: 2px dotted var(--sand); border-bottom: 2px dotted var(--sand); transform: rotate(-29deg); opacity: .7; }
.map-underground-diagram { display: none; position: absolute; inset: 54px 36px 30px; color: rgba(242,232,208,.58); }
.map-graphic[data-layer="subsurface"] .map-surface-diagram { display: none; }
.map-graphic[data-layer="subsurface"] .map-underground-diagram { display: block; }
.map-graphic[data-layer="subsurface"] .map-north { display: none; }
.map-section-pyramid { position: absolute; inset: 5px 18% 38%; border-right: 2px solid rgba(242,232,208,.4); border-bottom: 2px solid rgba(242,232,208,.4); transform: skewX(-34deg); }
.map-section-gallery { position: absolute; left: 47%; top: 33%; width: 8px; height: 112px; border: 2px solid var(--copper); transform: rotate(-27deg); }
.map-section-chamber { position: absolute; left: 55%; top: 39%; width: 78px; height: 34px; border: 2px solid #67ddf5; }
.map-section-descent { position: absolute; left: 47%; top: 56%; width: 128px; height: 112px; border-left: 3px dashed var(--danger); border-bottom: 3px dashed var(--danger); transform: skewX(-25deg); }
.map-section-zed { position: absolute; left: 28%; bottom: 10px; width: 190px; height: 48px; border: 3px double var(--danger); }
.map-underground-diagram span { position: absolute; padding: 3px 6px; background: rgba(12,11,9,.82); font-size: .62rem; letter-spacing: .07em; text-transform: uppercase; }
.map-underground-diagram span:nth-of-type(1) { left: 10px; top: 10px; }
.map-underground-diagram span:nth-of-type(2) { right: 10px; top: 112px; color: #67ddf5; }
.map-underground-diagram span:nth-of-type(3) { right: 4px; bottom: 2px; color: #ff9b83; }
.map-north { position: absolute; top: 14px; right: 14px; z-index: 2; display: grid; justify-items: center; color: rgba(242,232,208,.76); font: 700 .68rem/1 system-ui, sans-serif; letter-spacing: .12em; }
.map-north i { width: 1px; height: 26px; margin-top: 5px; background: linear-gradient(var(--papyrus), transparent); }
.map-player-marker { --player-heading: 0deg; position: absolute; z-index: 4; width: 48px; height: 48px; transform: translate(-50%, -50%); pointer-events: none; filter: drop-shadow(0 3px 8px rgba(0,0,0,.9)); }
.map-player-pulse { position: absolute; inset: 2px; border: 2px solid #67ddf5; border-radius: 50%; background: rgba(35,171,204,.14); animation: map-player-pulse 1.8s ease-out infinite; }
.map-player-arrow { position: absolute; top: 7px; left: 14px; width: 20px; height: 31px; clip-path: polygon(50% 0, 100% 72%, 61% 61%, 50% 100%, 39% 61%, 0 72%); background: #f9f0d4; transform: rotate(var(--player-heading)); filter: drop-shadow(0 0 2px #087f9d) drop-shadow(0 0 5px #21c6e9); }
.map-player-marker[data-layer="subsurface"] .map-player-pulse { border-style: dashed; background: rgba(35,171,204,.28); }
.map-player-readout { position: absolute; top: 13px; left: 13px; z-index: 4; display: flex; max-width: calc(100% - 96px); gap: 10px; align-items: center; padding: 9px 11px; border: 1px solid rgba(103,221,245,.68); background: rgba(9,15,16,.9); box-shadow: 0 8px 24px rgba(0,0,0,.34); backdrop-filter: blur(8px); }
.map-player-readout > i { width: 13px; height: 13px; flex: 0 0 auto; border: 3px solid #f9f0d4; border-radius: 50%; background: #22badb; box-shadow: 0 0 0 3px rgba(34,186,219,.24); }
.map-player-readout span { display: grid; gap: 2px; }
.map-player-readout strong { color: #fff7df; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.map-player-readout small { overflow: hidden; color: rgba(242,232,208,.72); font-size: .66rem; text-overflow: ellipsis; white-space: nowrap; }
.map-player-readout[data-layer="subsurface"] > i { border-style: dashed; }
@keyframes map-player-pulse {
  0% { transform: scale(.55); opacity: 1; }
  75%, 100% { transform: scale(1.25); opacity: 0; }
}
.map-stops { display: grid; gap: 14px; align-content: start; }
.map-stop-group { display: grid; gap: 8px; }
.map-stop-group[hidden] { display: none; }
.map-stop-group h3 { margin: 0; color: rgba(242,232,208,.72); font: 700 .7rem/1.2 system-ui, sans-serif; letter-spacing: .13em; text-transform: uppercase; }
.map-stop { display: grid; grid-template-columns: 28px 1fr; gap: 10px; padding: 11px; border: 1px solid var(--line); background: rgba(255,255,255,.02); text-align: left; cursor: pointer; }
.map-stop:hover { border-color: var(--sand); }
.map-stop.is-active { border-color: #67ddf5; background: rgba(35,171,204,.12); box-shadow: inset 3px 0 #67ddf5; }
.map-stop[data-evidence="disputed-sar"] { border-left-color: rgba(255,104,86,.64); }
.map-stop span { color: var(--sand); font-family: Georgia, serif; font-size: 1.2rem; }
.map-stop strong { display: block; }
.map-stop small { color: rgba(242,232,208,.55); }
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 18px 0 24px; background: var(--line); }
.settings-grid label { display: flex; min-height: 64px; justify-content: space-between; gap: 16px; align-items: center; padding: 16px; background: var(--panel-solid); }
.settings-grid input[type="checkbox"] { width: 38px; height: 20px; accent-color: var(--sand); }
.range-label { grid-column: span 2; flex-wrap: wrap; }
.range-label input { width: 100%; accent-color: var(--sand); }
.settings-grid select { padding: 7px 28px 7px 9px; border: 1px solid var(--line); color: var(--papyrus); background: #14120f; }
.source-sections { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.source-sections article { padding: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.02); }
.source-sections article:last-child { grid-column: span 2; }
.source-sections h3 { margin: 0 0 .7rem; }
.source-sections p { color: rgba(242,232,208,.66); font-size: .84rem; line-height: 1.5; }
.source-sections a { display: block; margin-top: .45rem; font-size: .78rem; }
.interior-reference-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin: 0 0 14px; }
.interior-reference-gallery figure { position: relative; min-height: 150px; margin: 0; overflow: hidden; border: 1px solid var(--line); background: #0d0c0a; }
.interior-reference-gallery img { display: block; width: 100%; height: 100%; min-height: 150px; object-fit: cover; }
.reference-heading { margin: 22px 0 10px; }
.surface-reference-gallery { display: grid; grid-template-columns: 1.4fr .8fr; gap: 8px; margin: 0 0 18px; }
.surface-reference-gallery figure { display: grid; grid-template-rows: minmax(180px, 300px) auto; margin: 0; overflow: hidden; border: 1px solid var(--line); background: #0d0c0a; }
.surface-reference-gallery img { width: 100%; height: 100%; min-height: 180px; object-fit: cover; }
.exterior-reference-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0 0 18px; }
.exterior-reference-gallery figure { display: grid; grid-template-rows: minmax(180px, 260px) auto; margin: 0; overflow: hidden; border: 1px solid var(--line); background: #0d0c0a; }
.exterior-reference-gallery img { width: 100%; height: 100%; min-height: 180px; object-fit: cover; }
.surface-reference-gallery figcaption, .exterior-reference-gallery figcaption, .interior-reference-gallery figcaption { padding: 8px 10px; color: rgba(242,232,208,.68); background: rgba(12,11,9,.92); font-size: .72rem; line-height: 1.35; }
.source-dot { display: inline-block; width: 8px; height: 8px; margin-right: 7px; border-radius: 50%; }
.source-dot.documented { background: var(--copper); }.source-dot.scanned { background: var(--blue); }.source-dot.disputed { background: var(--danger); }

.orientation-gate { position: absolute; z-index: 13; display: none; grid-template-columns: auto minmax(0,1fr) auto 44px; gap: 9px; align-items: center; min-height: 58px; padding: 7px 8px 7px 11px; border: 1px solid rgba(234,213,167,.32); background: rgba(17,15,12,.9); box-shadow: 0 14px 35px rgba(0,0,0,.35); backdrop-filter: blur(10px); pointer-events: auto; }
.orientation-symbol { color: var(--sand-bright); font-size: 1.45rem; }
.orientation-gate p { display: grid; gap: 2px; min-width: 0; margin: 0; }
.orientation-gate strong { overflow: hidden; font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }
.orientation-gate small { overflow: hidden; color: rgba(242,232,208,.62); font-size: .61rem; text-overflow: ellipsis; white-space: nowrap; }
.orientation-gate button { min-height: 44px; padding: 0 10px; border: 1px solid rgba(234,213,167,.28); border-radius: 3px; color: var(--papyrus); background: rgba(255,255,255,.04); font-size: .66rem; }
.orientation-gate .orientation-dismiss { width: 44px; padding: 0; font-size: 1.2rem; }
.mobile-controls { position: fixed; inset: auto 0 max(20px, env(safe-area-inset-bottom)); z-index: 12; display: none; justify-content: space-between; align-items: end; padding: 0 22px; pointer-events: none; }
.move-pad { position: relative; width: 112px; height: 112px; border: 1px solid rgba(242,232,208,.22); border-radius: 50%; background: rgba(17,15,12,.35); pointer-events: auto; touch-action: none; }
.move-pad span { position: absolute; top: 36px; left: 36px; width: 40px; height: 40px; border-radius: 50%; background: rgba(234,213,167,.68); }
.touch-look { position: absolute; top: -31px; left: 50%; padding: 5px 9px; border: 1px solid rgba(242,232,208,.16); border-radius: 14px; color: rgba(242,232,208,.7); background: rgba(17,15,12,.48); transform: translateX(-50%); font-size: .6rem; letter-spacing: .04em; white-space: nowrap; pointer-events: none; }
.mobile-actions { display: grid; grid-template-columns: repeat(2, 72px); gap: 8px; pointer-events: auto; }
.mobile-actions button { width: 72px; height: 48px; border: 1px solid rgba(242,232,208,.25); border-radius: 24px; color: var(--papyrus); background: rgba(17,15,12,.62); }

[hidden] { display: none !important; }
@media (max-width: 480px), (pointer: coarse) and (any-hover: none) {
  .title-screen { place-items: end stretch; padding: 16px; background: linear-gradient(0deg, rgba(10,9,7,.96), rgba(10,9,7,.1)); }
  .title-card { width: 100%; max-height: 72vh; border: 1px solid var(--line); }
  .control-grid { grid-template-columns: 1fr 1fr; }
  .cutscene-screen { grid-template-columns: 1fr; grid-template-rows: minmax(36vh, .8fr) auto; overflow: auto; }
  .cutscene-art { min-height: 42vh; grid-template-columns: 1fr 1fr; grid-template-rows: 1.3fr .7fr; }
  .cutscene-art .cutscene-feature { grid-column: span 2; grid-row: auto; }
  .cutscene-copy { align-self: end; }
  .route-intro-screen { grid-template-columns: 1fr; grid-template-rows: minmax(30vh,.55fr) auto; overflow: auto; }
  .route-intro-art { min-height: 34vh; }
  .route-intro-art::after { background: linear-gradient(180deg, transparent 55%, rgba(10,9,7,.85)); }
  .route-intro-copy { align-self: start; max-height: none; padding: 24px; }
  .top-bar { grid-template-columns: minmax(0,1fr) auto; grid-template-areas: "brand era" "actions actions"; gap: 8px; padding-right: 12px; padding-left: 12px; }
  .brand { grid-area: brand; min-width: 0; }
  .era-switch { position: static; grid-area: era; transform: none; }
  .top-actions { display: grid; grid-area: actions; grid-template-columns: repeat(7, minmax(44px, 1fr)); gap: 4px; width: 100%; max-width: none; overflow: visible; }
  .top-actions .icon-button { min-width: 0; min-height: 44px; padding: 4px 2px; overflow: hidden; font-size: 0; text-overflow: ellipsis; }
  .top-actions .icon-button::after { content: attr(data-short-label); font-size: .61rem; }
  .tour-card { top: 122px; max-width: 265px; }
  .route-hud { top: 122px; left: 12px; max-width: min(310px, calc(100vw - 24px)); }
  .evidence-lens { inset: 112px 8px 142px; }
  .evidence-interaction { bottom: 205px; min-width: min(300px, calc(100vw - 24px)); }
  .demo-tour-overlay { padding: 110px 10px 66px; }
  .demo-parchment { width: min(620px, calc(100vw - 20px)); max-height: calc(100vh - 184px); padding: 24px 22px; }
  .demo-parchment-header { gap: 8px; font-size: .57rem; }
  .demo-writing-field { min-height: 112px; padding-top: 12px; }
  .demo-inscription { grid-template-columns: 1fr; gap: 4px; }
  .demo-glyphs { grid-row: auto; font-size: 2rem; }
  .demo-inscription small { grid-column: 1; }
  .demo-tour-controls { right: 8px; bottom: 10px; left: 8px; justify-content: center; }
  .toast { top: auto; bottom: 205px; }
  .acoustic-readout { right: 12px; bottom: 178px; left: 12px; width: auto; }
  .evidence-badge { bottom: 142px; }
  .comfort-status { display: none; }
  .map-layout, .source-sections { grid-template-columns: 1fr; }
  .notebook-entries { grid-template-columns: 1fr; }
  .notebook-summary > div:first-child { display: grid; gap: 5px; }
  .evidence-explanation { grid-template-columns: 1fr; }
  .route-complete-stats { grid-template-columns: 1fr; }
  .interior-reference-gallery { grid-template-columns: 1fr 1fr; }
  .surface-reference-gallery, .exterior-reference-gallery { grid-template-columns: 1fr; }
  .map-graphic { height: 300px; min-height: 300px; }
  .source-sections article:last-child { grid-column: auto; }
  .settings-grid { grid-template-columns: 1fr; }
  .range-label { grid-column: auto; }
  .mobile-controls.is-active { display: flex; }
  .interaction-prompt { bottom: 152px; min-width: 250px; }
  .camera-tools { right: 10px; bottom: 10px; left: 10px; grid-template-columns: 1fr; max-height: 46vh; }
  .camera-view-labels span { padding-top: 112px; }
  .camera-view-labels span:nth-child(n+3) { padding-bottom: 48vh; }
  .camera-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .camera-inspector-ui:not([data-mode="player"]) ~ * { pointer-events: none; }
}
@media (max-width: 480px) {
  .control-grid { grid-template-columns: 1fr; }
  .control-grid article { min-height: 130px; }
  .modal-screen { padding: 12px; }
  .modal-card { max-height: calc(100vh - 24px); }
  .route-intro-copy h2 { font-size: 2.25rem; }
  .route-learning-goals { margin: 14px 0; }
  .primary-actions { display: grid; }
  .secondary-actions { gap: 12px; }
  .tour-card { top: 124px; left: 12px; }
  .route-hud { right: 12px; width: auto; }
  .route-hud-heading { align-items: flex-start; flex-direction: column; gap: 4px; }
  .route-hud-actions { justify-content: space-between; }
  .demo-tour-overlay { padding-top: 118px; }
  .demo-parchment { padding: 22px 18px; }
  .demo-parchment-header { align-items: flex-start; flex-direction: column; }
  .demo-writing-field h2 { font-size: 1.65rem; }
  .demo-writing-field p { font-size: .84rem; }
  .demo-inscription { margin-top: 4px; }
  .demo-inscription-context, .demo-inscription-caution { font-size: .62rem; }
  .demo-tour-controls .button, .demo-tour-controls .text-button { min-height: 44px; }
  .evidence-detail-header { flex-direction: column; gap: 4px; }
  .evidence-detail .modal-actions { display: grid; }
  .notebook-entry { grid-template-columns: 30px 1fr auto; }
  .interior-reference-gallery { grid-template-columns: 1fr; }
}
@media (pointer: coarse) and (any-hover: none) and (orientation: portrait) {
  .orientation-gate.is-active { top: 118px; right: 12px; left: 12px; display: grid; }
  .tour-card, .route-hud { top: 188px; }
  .evidence-lens { inset-block-start: 178px; }
  .evidence-badge { bottom: 178px; }
  .interaction-prompt { bottom: 190px; }
}
@media (pointer: coarse) and (any-hover: none) and (orientation: landscape) {
  .top-bar { grid-template-columns: minmax(170px,.72fr) minmax(0,1.65fr) auto; grid-template-areas: "brand actions era"; gap: 8px; padding: max(7px, env(safe-area-inset-top)) 12px 6px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand small { max-width: 145px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .top-actions .icon-button { min-height: 44px; }
  .era-switch button { min-height: 40px; padding: 5px 10px; }
  .tour-card { top: 62px; left: 12px; width: min(260px, calc(100vw - 24px)); padding: 12px 14px; }
  .tour-card h2 { margin: .22rem 0 .3rem; font-size: 1.2rem; }
  .tour-card p { display: -webkit-box; overflow: hidden; font-size: .72rem; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
  .route-hud { top: 62px; left: 12px; max-width: 300px; padding: 12px 14px; }
  .mobile-controls { inset-block-end: max(12px, env(safe-area-inset-bottom)); padding: 0 12px; }
  .move-pad { width: 96px; height: 96px; }
  .move-pad span { top: 31px; left: 31px; width: 34px; height: 34px; }
  .mobile-actions { grid-template-columns: repeat(2, 68px); gap: 8px; }
  .mobile-actions button { width: 68px; height: 44px; font-size: .72rem; }
  .touch-look { top: -29px; }
  .evidence-badge { bottom: 12px; left: 124px; }
  .interaction-prompt, .evidence-interaction { bottom: 112px; }
  .acoustic-readout { bottom: 112px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .demo-parchment[data-phase] { opacity: 1; filter: none; clip-path: none; transform: none; }
  .demo-quill, .demo-embers { display: none !important; }
}
body[data-reduced-motion="true"] .demo-parchment[data-phase] { opacity: 1; filter: none; clip-path: none !important; transform: none; animation: none; }
body[data-reduced-motion="true"] .demo-quill, body[data-reduced-motion="true"] .demo-embers,
body[data-reduced-motion="true"] .demo-parchment::after { display: none !important; }
body[data-reduced-motion="true"] .evidence-marker,
body[data-reduced-motion="true"] .evidence-lens { animation: none !important; transition: none !important; }