:root{
  --bg:#070b12; --bg2:#0a1019;
  --panel:rgba(18,26,38,.92); --panel-solid:#111824; --glass:rgba(16,24,36,.72);
  --line:#23303f; --line2:#2c3b4d;
  --txt:#eaf1f8; --mut:#8ea3b8; --mut2:#5f7187;
  --accent:#3da9fc; --accent2:#27e0b0;
  --blue:#2f7bff; --orange:#ff9f1c; --red:#ff3b3b; --green:#27e0b0; --amber:#ffc94d;
  --r:16px; --r-sm:10px;
  --shadow:0 18px 50px rgba(0,0,0,.5);
  --shadow-sm:0 6px 20px rgba(0,0,0,.35);
  --font:"Inter","Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%;background:var(--bg);color:var(--txt);overflow:hidden;font-family:var(--font);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
#app{position:fixed;inset:0}
canvas{display:block}
.hidden{display:none !important}
button{font-family:inherit;color:inherit}
kbd{background:#16202c;border:1px solid var(--line2);border-bottom-width:2px;border-radius:5px;
  padding:1px 6px;font-size:.78em;color:var(--txt);font-family:var(--mono)}
::selection{background:rgba(61,169,252,.3)}

/* ---------- Overlays / Screens ---------- */
.overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:50}
/* safe centering: when the panel is taller than the viewport it scrolls from the top
   instead of clipping (critical on short landscape phone viewports). */
.screen{background:radial-gradient(1200px 700px at 50% -15%,#11233b 0%,#070b12 55%);
  overflow:auto;padding:24px;align-items:safe center;justify-content:safe center}
.bg-grid{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(61,169,252,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(61,169,252,.06) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 50% 35%,#000 0%,transparent 75%)}
.panel{position:relative;z-index:1;background:linear-gradient(180deg,rgba(20,29,42,.96),rgba(11,17,26,.96));
  border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);width:100%;backdrop-filter:blur(10px)}
.panel.start{max-width:640px;padding:34px 38px}
.panel.results{max-width:780px;padding:30px 36px}

/* brand header */
.brand{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.logo{width:46px;height:46px;flex:none;filter:drop-shadow(0 4px 10px rgba(39,224,176,.25))}
.logo.sm{width:26px;height:26px}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.5px}
.brand-tag{font-size:11.5px;color:var(--mut);letter-spacing:.3px}
.hero{font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.05;margin-bottom:12px}
.hero span{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sub{color:var(--mut);font-size:13.5px;line-height:1.6;margin-bottom:24px}
.sub b{color:var(--txt);font-weight:600}

/* config cards */
.config{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:14px}
.config-group>label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:1.4px;color:var(--mut);margin-bottom:9px;font-weight:600}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.card{position:relative;text-align:left;background:#0b121b;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 12px 11px;cursor:pointer;transition:.16s;overflow:hidden}
.card:hover{border-color:var(--line2);transform:translateY(-1px)}
.card.active{border-color:var(--accent);background:linear-gradient(180deg,rgba(61,169,252,.14),rgba(61,169,252,.04));
  box-shadow:0 0 0 1px var(--accent) inset,0 8px 22px rgba(61,169,252,.18)}
.card-ico{display:block;width:26px;height:26px;border-radius:7px;margin-bottom:9px;background:#16212e;position:relative}
.card-ico::after{content:"";position:absolute;inset:0}
.card-ico.flat::after{background:linear-gradient(90deg,transparent 45%,var(--mut) 45%,var(--mut) 55%,transparent 55%);border-radius:7px;opacity:.6}
.card-ico.super{transform:rotate(-8deg)}
.card-ico.super::after{background:linear-gradient(90deg,transparent 45%,var(--mut) 45%,var(--mut) 55%,transparent 55%);border-radius:7px;opacity:.6}
.card-ico.watch::after{background:radial-gradient(circle at 50% 50%,var(--mut) 0 22%,transparent 24%);}
.card-ico.drive::after{background:conic-gradient(from 0deg,var(--mut) 0 25%,transparent 0 50%,var(--mut) 0 75%,transparent 0);border-radius:50%;margin:5px;opacity:.7}
.card.active .card-ico{background:rgba(61,169,252,.18)}
.card-t{display:block;font-size:14px;font-weight:700;color:var(--txt)}
.card.active .card-t{color:#fff}
.card-d{display:block;font-size:11px;color:var(--mut);margin-top:3px;line-height:1.35}
.mode-hint{font-size:12.5px;color:var(--mut);min-height:34px;margin:12px 2px 18px;line-height:1.5;
  padding-left:12px;border-left:2px solid var(--accent)}

/* primary button */
button.primary{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(180deg,#46b1ff,#2b86d6);
  color:#04121f;font-weight:800;border:0;padding:14px 26px;border-radius:12px;font-size:15px;cursor:pointer;
  box-shadow:0 10px 26px rgba(61,169,252,.4);transition:.16s;width:100%;justify-content:center;letter-spacing:.3px}
button.primary em{font-style:normal;font-size:13px}
button.primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(61,169,252,.5)}
button.primary:active{transform:translateY(0)}
button.ghost{background:rgba(255,255,255,.03);color:var(--txt);border:1px solid var(--line2);padding:13px 22px;
  border-radius:12px;cursor:pointer;font-size:14px;font-weight:600;transition:.16s}
button.ghost:hover{border-color:var(--accent);background:rgba(61,169,252,.08)}

.keyrow{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-top:18px;font-size:11.5px;color:var(--mut)}
.screen-foot{position:absolute;bottom:14px;left:0;right:0;text-align:center;font-size:11px;color:var(--mut2);letter-spacing:.5px;z-index:1}

/* loading */
#loading{flex-direction:column;gap:20px;background:radial-gradient(800px 500px at 50% 40%,#0e1828,#070b12);z-index:60}
.loader-ring{display:flex;gap:8px}
.loader-ring span{width:12px;height:12px;border-radius:50%;background:var(--accent);animation:bounce 1s infinite ease-in-out}
.loader-ring span:nth-child(2){background:var(--orange);animation-delay:.15s}
.loader-ring span:nth-child(3){background:var(--red);animation-delay:.3s}
@keyframes bounce{0%,80%,100%{transform:scale(.5);opacity:.4}40%{transform:scale(1);opacity:1}}
.loader-txt{color:var(--mut);font-size:13px;letter-spacing:.5px}

/* ---------- HUD ---------- */
#hud{position:fixed;inset:0;pointer-events:none;z-index:40}
#hud button{pointer-events:auto}
#topbar{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;background:linear-gradient(180deg,rgba(7,11,18,.9),transparent)}
.tb-left{display:flex;gap:10px;align-items:center}
.badge{padding:5px 11px;border-radius:8px;font-size:11px;font-weight:700;letter-spacing:.6px;
  background:rgba(47,123,255,.14);color:#7db8ff;border:1px solid rgba(47,123,255,.3)}
.badge.alt{background:rgba(39,224,176,.12);color:var(--green);border-color:rgba(39,224,176,.3)}
.clock{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:13px;color:var(--mut);
  background:rgba(10,16,24,.7);border:1px solid var(--line);border-radius:8px;padding:5px 10px}
.clock i{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 8px var(--red);animation:rec 1.4s infinite}
@keyframes rec{50%{opacity:.3}}
.tb-right{display:flex;gap:10px;align-items:center}
.cam-cluster{display:flex;gap:3px;background:rgba(10,16,24,.78);border:1px solid var(--line);border-radius:11px;padding:3px}
.cam-btn{background:transparent;color:var(--mut);border:0;border-radius:8px;padding:7px 12px;font-size:12px;cursor:pointer;transition:.12s;font-weight:600}
.cam-btn:hover{color:var(--txt);background:rgba(255,255,255,.04)}
.cam-btn.active{background:var(--accent);color:#04121f;font-weight:700;box-shadow:0 2px 10px rgba(61,169,252,.4)}
.icon-btn{width:34px;height:34px;border-radius:9px;background:rgba(10,16,24,.78);border:1px solid var(--line);
  color:var(--mut);font-size:14px;cursor:pointer;transition:.12s;display:flex;align-items:center;justify-content:center}
.icon-btn:hover{color:var(--txt);border-color:var(--line2)}
.icon-btn.quit:hover{color:var(--red);border-color:var(--red)}

#caption{position:absolute;top:62px;left:50%;transform:translateX(-50%) translateY(-6px);background:rgba(7,11,18,.82);
  border:1px solid var(--line);padding:10px 20px;border-radius:11px;font-size:14px;max-width:70%;text-align:center;
  opacity:0;transition:all .35s;backdrop-filter:blur(8px);font-weight:500;box-shadow:var(--shadow-sm)}
#caption.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* dashboard */
#dashboard{position:absolute;top:60px;right:14px;width:300px;background:var(--glass);
  border:1px solid var(--line);border-radius:var(--r);padding:14px;backdrop-filter:blur(12px);box-shadow:var(--shadow)}
.dash-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.dh-title{display:flex;align-items:center;gap:7px;font-size:11.5px;letter-spacing:1.2px;font-weight:700;color:var(--txt)}
.dh-title .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}
.sys-pill{font-size:10.5px;font-weight:700;letter-spacing:.5px;color:var(--green);background:rgba(39,224,176,.1);
  border:1px solid rgba(39,224,176,.25);padding:3px 9px;border-radius:20px}
.sys-pill.fault{color:var(--red);background:rgba(255,59,59,.1);border-color:rgba(255,59,59,.3)}
.sensors{display:flex;flex-direction:column;gap:7px;margin-bottom:12px}
.sensor{background:#0a111a;border:1px solid var(--line);border-radius:10px;padding:8px 10px 9px}
.s-row{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:8px;margin-bottom:6px}
.s-name{font-size:11px;color:var(--mut);font-weight:500}
.s-dist{font-family:var(--mono);font-size:12.5px;font-weight:700;color:var(--txt)}
.s-led{width:11px;height:11px;border-radius:50%;background:#24313d;box-shadow:inset 0 0 0 1px rgba(0,0,0,.5)}
.s-led.blue{background:var(--blue);box-shadow:0 0 10px var(--blue)}
.s-led.orange{background:var(--orange);box-shadow:0 0 10px var(--orange)}
.s-led.red{background:var(--red);box-shadow:0 0 12px var(--red);animation:blink .45s steps(1) infinite}
@keyframes blink{50%{opacity:.25}}
.s-bar{height:4px;background:#0f1822;border-radius:3px;overflow:hidden}
.s-fill{height:100%;width:0;border-radius:3px;background:var(--blue);transition:width .25s,background .25s}

.warn-strip{display:flex;align-items:center;gap:8px;background:#0a111a;border:1px solid var(--line);
  border-radius:10px;padding:9px 11px;margin-bottom:12px}
.ws-led{width:13px;height:13px;border-radius:50%;background:#1a2531;transition:.15s;flex:none}
.ws-led[data-l="1"].on{background:var(--blue);box-shadow:0 0 10px var(--blue)}
.ws-led[data-l="2"].on{background:var(--orange);box-shadow:0 0 10px var(--orange)}
.ws-led[data-l="3"].on{background:var(--red);box-shadow:0 0 12px var(--red)}
.ws-text{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--mut)}
.ws-text.lvl1{color:var(--blue)}.ws-text.lvl2{color:var(--orange)}.ws-text.lvl3{color:var(--red)}
.dash-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.dash-grid div{background:#0a111a;border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.dash-grid label{display:block;font-size:9.5px;text-transform:uppercase;letter-spacing:1px;color:var(--mut);margin-bottom:3px;font-weight:600}
.dash-grid span{font-size:12.5px;font-weight:700;font-family:var(--mono)}
.dash-grid .ok-val{color:var(--green)}
#d-buzz.on{color:var(--red)}

/* drive ui */
#drive-ui{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px}
.warn-banner{min-height:26px;font-weight:800;font-size:16px;letter-spacing:.4px;text-align:center;transition:.2s;padding:0 14px}
.warn-banner.blue{color:#7db8ff}.warn-banner.orange{color:var(--orange)}
.warn-banner.red{color:#fff;background:var(--red);padding:7px 20px;border-radius:11px;box-shadow:0 0 0 0 rgba(255,59,59,.6);animation:pulse 1s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,59,59,.5)}70%{box-shadow:0 0 0 14px rgba(255,59,59,0)}100%{box-shadow:0 0 0 0 rgba(255,59,59,0)}}
.cluster{display:flex;align-items:center;gap:18px;background:var(--glass);border:1px solid var(--line);
  border-radius:18px;padding:12px 22px;box-shadow:var(--shadow);backdrop-filter:blur(12px)}
.speedo-gauge{width:110px;height:66px}
#speedo-arc{transition:stroke-dashoffset .2s}
.speed-read{display:flex;flex-direction:column;align-items:center;min-width:96px}
.speed-read #speed-num{font-family:var(--mono);font-size:46px;font-weight:800;line-height:.9}
.speed-read small{font-size:12px;color:var(--mut);font-weight:600;letter-spacing:1px}
.pedals{display:flex;gap:10px}
.pedal{width:62px;height:54px;border-radius:11px;background:#0b121a;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px;font-weight:700;color:var(--mut);transition:.1s}
.pedal b{font-size:12px}
.pedal.active{background:var(--accent2);color:#04121f;border-color:var(--accent2);box-shadow:0 0 16px rgba(39,224,176,.4)}
.pedal.brake.active{background:var(--red);color:#fff;border-color:var(--red);box-shadow:0 0 16px rgba(255,59,59,.5)}

.icon-btn.sound{position:absolute;bottom:18px;right:18px;width:42px;height:42px;border-radius:50%}

/* ---------- Results ---------- */
.res-head{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.res-check{width:46px;height:46px;flex:none;border-radius:50%;background:rgba(39,224,176,.14);border:1px solid rgba(39,224,176,.4);
  color:var(--green);font-size:24px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 22px rgba(39,224,176,.25)}
.res-head h2{font-size:24px;font-weight:800}
.results-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}
.result-card{background:linear-gradient(180deg,#0d1622,#0a111a);border:1px solid var(--line);border-radius:14px;padding:18px 12px;text-align:center}
.result-card.ok{border-color:rgba(39,224,176,.4)}
.rc-val{font-size:29px;font-weight:800;color:var(--accent);font-family:var(--mono)}
.rc-val small{font-size:14px;color:var(--mut)}
.result-card.ok .rc-val{color:var(--green);font-size:30px}
.rc-lbl{font-size:11px;color:var(--mut);margin-top:7px;line-height:1.35}
.run-summary{background:#0a111a;border:1px solid var(--line);border-radius:12px;padding:15px 17px;
  font-size:13px;line-height:1.8;color:var(--mut);margin-bottom:20px}
.run-summary b{color:var(--txt);font-weight:600}
.trial-log{background:#0a111a;border:1px solid var(--line);border-radius:14px;padding:15px 17px;margin-bottom:20px}
.trial-log h3{font-size:15px;margin-bottom:10px}
.tl-hint{font-size:11px;color:var(--mut);font-weight:400}
.trial-table{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:2px}
.trial-table table{width:100%;border-collapse:collapse;font-size:10.5px;white-space:normal}
.trial-table th{color:var(--mut);font-weight:600;text-transform:uppercase;font-size:10px;letter-spacing:.04em;
  text-align:right;padding:6px 5px;border-bottom:1px solid var(--line)}
.trial-table td{text-align:right;padding:6px 5px;border-bottom:1px solid rgba(255,255,255,.04);color:var(--txt)}
.trial-table td.tl-l,.trial-table th:nth-child(2),.trial-table th:nth-child(4){text-align:left}
.trial-table tbody tr:hover{background:rgba(61,169,252,.06)}
.trial-table .tl-l1{color:var(--blue)} .trial-table .tl-l2{color:var(--orange)} .trial-table .tl-l3{color:var(--red)}
.trial-table .tl-led{font-weight:600}
.trial-table .tl-safe{color:var(--green);font-weight:600}
.trial-table .tl-risk{color:var(--red);font-weight:600}
.survey{background:#0a111a;border:1px solid var(--line);border-radius:14px;padding:17px 19px;margin-bottom:20px}
.survey h3{font-size:16px;margin-bottom:4px}
.survey-sub{font-size:12px;color:var(--mut);margin-bottom:14px}
.likert{display:flex;justify-content:space-between;align-items:center;margin:11px 0;font-size:14px;font-weight:500}
.stars{display:flex;gap:7px}
.star{cursor:pointer;color:#2a3a48;font-size:25px;line-height:1;transition:.12s}
.star:hover{transform:scale(1.15)}
.star.on{color:var(--amber);text-shadow:0 0 12px rgba(255,201,77,.5)}
.survey-out{margin-top:14px;font-size:13px;color:var(--green);font-weight:600;padding:10px 12px;
  background:rgba(39,224,176,.08);border:1px solid rgba(39,224,176,.25);border-radius:10px}
.results-actions{display:flex;gap:12px}
.results-actions .primary{flex:1}

/* rotate guard */
#rotate-guard{display:none;position:fixed;inset:0;z-index:200;background:var(--bg);
  flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center;padding:30px}
.rg-icon{font-size:48px;animation:rothint 2s infinite}
@keyframes rothint{0%,100%{transform:rotate(0)}50%{transform:rotate(90deg)}}
#rotate-guard p{color:var(--mut);line-height:1.6}
#rotate-guard b{color:var(--txt)}

@media (max-width:720px){
  .config{grid-template-columns:1fr}
  .hero{font-size:27px}
  .results-grid{grid-template-columns:repeat(2,1fr)}
  #dashboard{width:230px;transform:scale(.9);transform-origin:top right}
}
/* compact layout for short (landscape phone) viewports */
@media (max-height:560px){
  .panel.start{padding:20px 26px}
  .brand{margin-bottom:12px}
  .hero{font-size:24px;margin-bottom:8px}
  .sub{font-size:12px;margin-bottom:14px}
  .config{margin-bottom:10px;gap:12px}
  .mode-hint{min-height:0;margin:8px 2px 12px}
  button.primary{padding:12px 22px}
  .keyrow{margin-top:12px}
  .screen-foot{display:none}
  .panel.results{padding:20px 26px}
  .results-grid{margin-bottom:14px}
  .result-card{padding:12px 8px}
  .rc-val{font-size:23px}
  .survey{padding:13px 15px;margin-bottom:14px}
  .run-summary{margin-bottom:14px}
}
@media (max-width:720px) and (orientation:portrait){
  #rotate-guard{display:flex}
}

/* ============================================================
   2026 DESIGN LAYER — cinematic depth, aurora, refined glass
   (purely visual; no thesis content/values changed)
   ============================================================ */

/* cinematic vignette + subtle film grain over the 3D canvas */
#vignette{position:fixed;inset:0;z-index:30;pointer-events:none;
  background:
    radial-gradient(120% 100% at 50% 42%,transparent 52%,rgba(4,8,14,.32) 88%,rgba(3,6,11,.62) 100%);
  mix-blend-mode:multiply}
#vignette::after{content:"";position:absolute;inset:0;opacity:.05;mix-blend-mode:overlay;
  background-image:radial-gradient(rgba(255,255,255,.8) .5px,transparent .5px);background-size:3px 3px}

/* animated aurora glow behind the menu/results screens */
.screen::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;filter:blur(60px);opacity:.55;
  background:
    radial-gradient(38% 44% at 22% 18%,rgba(61,169,252,.5),transparent 70%),
    radial-gradient(34% 40% at 82% 26%,rgba(39,224,176,.4),transparent 70%),
    radial-gradient(46% 50% at 60% 96%,rgba(120,80,255,.32),transparent 72%);
  animation:aurora 18s ease-in-out infinite alternate}
@keyframes aurora{0%{transform:translate3d(-3%,-2%,0) scale(1)}100%{transform:translate3d(4%,3%,0) scale(1.12)}}

/* refined glass panel: brighter top edge, deeper shadow, hairline ring */
.panel{background:linear-gradient(180deg,rgba(22,32,47,.82),rgba(10,16,25,.9));
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 30px 80px rgba(0,0,0,.6),0 2px 0 rgba(255,255,255,.06) inset,0 -1px 0 rgba(0,0,0,.4) inset;
  backdrop-filter:blur(18px) saturate(1.15)}
.panel::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.06),transparent 18%)}

/* animated gradient on the hero accent word */
.hero span{background:linear-gradient(90deg,var(--accent),var(--accent2),#7a6bff,var(--accent));
  background-size:300% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:flow 7s linear infinite}
@keyframes flow{to{background-position:300% 0}}

/* config cards: glossier active state + smoother hover */
.card{transition:transform .18s cubic-bezier(.2,.8,.2,1),border-color .18s,background .18s,box-shadow .18s;
  background:linear-gradient(180deg,rgba(16,24,35,.7),rgba(10,15,23,.7))}
.card:hover{transform:translateY(-2px);border-color:var(--line2)}
.card.active{border-color:var(--accent);
  background:linear-gradient(180deg,rgba(61,169,252,.16),rgba(61,169,252,.05));
  box-shadow:0 0 0 1px var(--accent) inset,0 12px 30px rgba(61,169,252,.26),0 1px 0 rgba(255,255,255,.1) inset}
.card-ico{box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 2px 6px rgba(0,0,0,.3)}
.card.active .card-ico::after{opacity:1;filter:brightness(1.8)}
/* active card gets a subtle corner check */
.card.active::after{content:"✓";position:absolute;top:9px;right:10px;font-size:11px;font-weight:800;
  color:var(--accent);opacity:.9}

/* primary button: sheen sweep on hover */
button.primary{position:relative;overflow:hidden;
  background:linear-gradient(180deg,#5bbcff,#2b86d6);
  box-shadow:0 12px 30px rgba(61,169,252,.42),0 1px 0 rgba(255,255,255,.4) inset}
button.primary::before{content:"";position:absolute;top:0;left:-60%;width:50%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-18deg);
  transition:left .55s ease}
button.primary:hover::before{left:130%}

/* topbar badges — frosted pills */
.badge,.clock,.cam-cluster,.icon-btn{backdrop-filter:blur(10px)}
.cam-btn.active{box-shadow:0 2px 12px rgba(61,169,252,.5),0 0 0 1px rgba(255,255,255,.12) inset}

/* dashboard glass refinement + glowing header dot */
#dashboard,#driver-panel{background:linear-gradient(180deg,rgba(13,20,31,.93),rgba(8,12,20,.95));
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 24px 60px rgba(0,0,0,.5),0 1px 0 rgba(255,255,255,.06) inset;
  backdrop-filter:blur(16px) saturate(1.1)}
.dh-title .dot{animation:dotpulse 2.4s ease-in-out infinite}
@keyframes dotpulse{50%{box-shadow:0 0 16px var(--green),0 0 4px var(--green)}}
.sensor{background:linear-gradient(180deg,rgba(13,20,30,.9),rgba(8,13,20,.9));transition:border-color .25s}
.sensor:has(.s-led.red){border-color:rgba(255,59,59,.5);box-shadow:0 0 18px rgba(255,59,59,.18)}

/* speedometer cluster glow */
.cluster{background:linear-gradient(180deg,rgba(16,24,36,.8),rgba(9,14,22,.86));
  box-shadow:0 20px 50px rgba(0,0,0,.5),0 1px 0 rgba(255,255,255,.06) inset}
.speed-read #speed-num{text-shadow:0 0 24px rgba(91,188,255,.35)}

/* result cards lift + accent glow */
.result-card{position:relative;overflow:hidden;transition:transform .2s}
.result-card:hover{transform:translateY(-3px)}
.result-card::before{content:"";position:absolute;inset:0;background:radial-gradient(80% 60% at 50% 0%,rgba(61,169,252,.14),transparent 70%)}
.result-card.ok::before{background:radial-gradient(80% 60% at 50% 0%,rgba(39,224,176,.16),transparent 70%)}
.rc-val{text-shadow:0 0 22px rgba(61,169,252,.3)}
.result-card.ok .rc-val{text-shadow:0 0 22px rgba(39,224,176,.35)}

/* respect reduced-motion preference */
@media (prefers-reduced-motion:reduce){
  .screen::before,.hero span,.dh-title .dot,button.primary::before{animation:none}
}

/* ============================================================
   FEATURE CONTROLS — conditions, pause, restart, quality, touch
   ============================================================ */

/* start-screen: full-width conditions group + chips */
.config-group.span2{grid-column:1/-1}
.lbl-hint{text-transform:none;letter-spacing:0;color:var(--mut2);font-weight:500}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{flex:1 1 auto;min-width:84px;background:linear-gradient(180deg,rgba(16,24,35,.7),rgba(10,15,23,.7));
  border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:12.5px;font-weight:600;
  color:var(--txt);cursor:pointer;transition:.16s;text-align:center}
.chip:hover{border-color:var(--line2);transform:translateY(-1px)}
.chip.active{border-color:var(--accent2);color:#04121f;font-weight:700;
  background:linear-gradient(180deg,#3ff0c4,#27e0b0);box-shadow:0 8px 22px rgba(39,224,176,.28)}

/* topbar condition badge tinted per condition */
.badge.cond{background:rgba(255,201,77,.14);color:var(--amber);border-color:rgba(255,201,77,.32)}
.badge.cond[data-cond="night"]{background:rgba(96,128,200,.18);color:#9fb6ff;border-color:rgba(96,128,200,.4)}
.badge.cond[data-cond="rain"]{background:rgba(90,140,180,.18);color:#9fcfff;border-color:rgba(90,140,180,.4)}
.badge.cond[data-cond="fog"]{background:rgba(180,190,200,.16);color:#cfd8e0;border-color:rgba(180,190,200,.35)}
.badge.cond[data-cond="dusk"]{background:rgba(255,150,90,.16);color:#ffb88a;border-color:rgba(255,150,90,.36)}

/* topbar control cluster */
.ctrl-cluster{display:flex;gap:3px;background:rgba(10,16,24,.78);border:1px solid var(--line);
  border-radius:11px;padding:3px;backdrop-filter:blur(10px)}
.ctrl-btn{min-width:32px;height:30px;padding:0 9px;background:transparent;color:var(--mut);border:0;
  border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;transition:.12s;display:flex;align-items:center;justify-content:center}
.ctrl-btn:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.ctrl-btn:active{transform:scale(.94)}
.ctrl-btn.wide{font-size:10.5px;letter-spacing:.6px}
#btn-condition{font-size:15px}

/* pause overlay */
#pause-overlay{position:absolute;inset:0;z-index:45;display:flex;align-items:center;justify-content:center;
  background:rgba(5,9,15,.55);backdrop-filter:blur(6px);pointer-events:auto;cursor:pointer}
.pause-card{text-align:center;background:var(--glass);border:1px solid var(--line);border-radius:18px;
  padding:26px 40px;box-shadow:var(--shadow)}
.pause-ico{font-size:34px;color:var(--accent);margin-bottom:8px}
.pause-title{font-size:22px;font-weight:800;letter-spacing:.5px}
.pause-sub{font-size:12.5px;color:var(--mut);margin-top:6px}

/* make drive pedals tappable (HUD itself is pointer-events:none) */
#drive-ui{pointer-events:none}
.pedal{pointer-events:auto;cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:none}

/* driver awareness panel */
#driver-panel{position:absolute;top:60px;left:14px;width:280px;background:var(--glass);
  border:1px solid var(--line);border-radius:var(--r);padding:14px;backdrop-filter:blur(12px);box-shadow:var(--shadow);pointer-events:none}
.driver-metrics{display:flex;flex-direction:column;gap:8px;margin-top:12px;margin-bottom:12px}
.metric-row{display:flex;justify-content:space-between;align-items:center;background:#0a111a;border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:12px}
.m-lbl{color:var(--mut);font-weight:600;font-size:10px;text-transform:uppercase;letter-spacing:.5px}
.m-val{margin-left:auto;font-weight:700;font-family:var(--mono)}
.m-val.warn{color:var(--orange)}
.m-val.danger{color:var(--red)}
.m-val.safe{color:var(--green)}
.reaction-meter{background:#0a111a;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:11px}
.rm-label{text-transform:uppercase;font-size:9.5px;letter-spacing:1px;color:var(--mut);margin-bottom:6px;font-weight:600}
.rm-progress{height:6px;background:#0f1822;border-radius:3px;overflow:hidden;margin-bottom:6px}
.rm-fill{height:100%;width:0%;background:var(--accent);transition:width .2s,background .2s}
.rm-status{font-weight:700;color:var(--txt);font-size:11px}
.eye-dot{background:var(--accent) !important;box-shadow:0 0 8px var(--accent) !important}

@media (max-width:720px){
  .ctrl-btn{min-width:30px;height:28px;font-size:13px}
  .chip{min-width:0;flex:1 1 28%;font-size:11.5px;padding:8px 6px}
}