/* =====================================================================
   Proteins in Motion · visual system
   Light periwinkle glass adapted from the "Blue White Gradient 3D DNA
   Structure" template; Lora for display and quotation, Source Sans 3 for
   reading and interface.
   ===================================================================== */

@font-face{font-family:"Lora";font-weight:400 700;font-style:normal;font-display:swap;src:url("assets/fonts/Lora[wght].ttf") format("truetype")}
@font-face{font-family:"Lora";font-weight:400 700;font-style:italic;font-display:swap;src:url("assets/fonts/Lora-Italic[wght].ttf") format("truetype")}
@font-face{font-family:"Source Sans 3";font-weight:200 900;font-style:normal;font-display:swap;src:url("assets/fonts/SourceSans3[wght].ttf") format("truetype")}
@font-face{font-family:"Source Sans 3";font-weight:200 900;font-style:italic;font-display:swap;src:url("assets/fonts/SourceSans3-Italic[wght].ttf") format("truetype")}

/* website version: viewport units go through --vw/--vh/--vmin so that, when the page is zoomed to fit the
   1600x900 kiosk canvas (index.html sets html.fit, zoom and --z), they keep the kiosk's proportions */
:root{--vw:1vw;--vh:1vh;--vmin:1vmin;--z:1}
html.fit{--vw:calc(1vw/var(--z));--vh:calc(1vh/var(--z));--vmin:calc(1vmin/var(--z))}
:root{
  --bg-0:#F7F9FF; --bg-1:#E1E8F9; --bg-2:#BCCAEC;
  --ink:#2F3750; --ink-2:#5A6480; --mute:#8A94AE;
  --blue:#5A6DB7; --blue-2:#7282C2; --blue-3:#C0CDF1; --blue-4:#E6ECFB;
  --gold:#C99326; --gold-2:#E2B457; --gold-3:#F6E8C6;
  --rose:#D96C86;
  /* instrument identities (one per cluster / quadrant) */
  --m1:#6E5BC7; --m2:#C4673C; --m3:#2A8F8C; --m4:#3E7BCB; --t1:#5A6480;
  --glass:rgba(255,255,255,.60); --glass-2:rgba(255,255,255,.80);
  --glass-line:rgba(255,255,255,.88); --glass-edge:rgba(90,109,183,.14);
  --shadow:0 22px 60px rgba(72,90,160,.16), 0 2px 6px rgba(72,90,160,.06);
  --shadow-sm:0 10px 28px rgba(72,90,160,.12);
  --r:26px; --r-sm:16px;
  --top:92px; --bottom:108px; --side:clamp(32px,calc(4.4*var(--vw)),84px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Lora",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;color:var(--ink);font-family:var(--sans);font-weight:400;font-size:17px;line-height:1.5;
  background:var(--bg-0);overflow:hidden;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;letter-spacing:-.012em;margin:0;line-height:1.12}
p{margin:0}
button,select,input{font:inherit;cursor:pointer;color:inherit}
button:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
::selection{background:var(--blue-3)}

/* ---------- ambient ground ---------- */
#bg{position:fixed;inset:0;z-index:0;overflow:hidden;
  background:
    radial-gradient(120% 90% at 85% 10%, #FFFFFF 0%, rgba(255,255,255,0) 55%),
    radial-gradient(90% 80% at 10% 100%, #B4C3EA 0%, rgba(180,195,234,0) 60%),
    linear-gradient(160deg,var(--bg-0) 0%,var(--bg-1) 48%,var(--bg-2) 100%)}
.orb{position:absolute;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle at 32% 28%, rgba(255,255,255,.98) 0 7%, rgba(255,255,255,.45) 20%, rgba(214,224,250,.55) 52%, rgba(150,168,222,.45) 100%);
  box-shadow:inset -22px -30px 48px rgba(90,109,183,.20), inset 12px 14px 34px rgba(255,255,255,.75), 0 36px 70px rgba(72,90,160,.14);
  border:1px solid rgba(255,255,255,.75);animation:drift var(--t,42s) ease-in-out infinite alternate}
.orb::after{content:"";position:absolute;left:14%;top:12%;width:34%;height:22%;border-radius:50%;
  background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,0));filter:blur(1px)}
.o1{width:calc(44*var(--vmin));height:calc(44*var(--vmin));left:calc(-12*var(--vmin));bottom:calc(-14*var(--vmin));--t:46s}
.o2{width:calc(22*var(--vmin));height:calc(22*var(--vmin));right:calc(8*var(--vw));top:calc(12*var(--vh));--t:38s;animation-delay:-12s}
.o3{width:calc(12*var(--vmin));height:calc(12*var(--vmin));right:calc(26*var(--vw));bottom:calc(14*var(--vh));--t:30s;animation-delay:-20s}
.o4{width:calc(8*var(--vmin));height:calc(8*var(--vmin));left:calc(30*var(--vw));top:calc(18*var(--vh));--t:34s;animation-delay:-6s;opacity:.8}
.o5{width:calc(30*var(--vmin));height:calc(30*var(--vmin));right:calc(-9*var(--vmin));bottom:calc(-8*var(--vmin));--t:52s;animation-delay:-30s;opacity:.85}
@keyframes drift{0%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(calc(2.5*var(--vw)),calc(-3*var(--vh)),0) scale(1.04)}100%{transform:translate3d(calc(-1.5*var(--vw)),calc(2*var(--vh)),0) scale(.98)}}

/* ---------- molecule canvas ---------- */
/* the canvas changes place while it is faded out (body.molswap), then each screen frames the molecule for its own size */
#mol{position:fixed;inset:0;z-index:1;transition:opacity .28s var(--ease)}
body.molswap #mol{opacity:0!important}
body[data-m="full"]  #mol{left:0;right:0;opacity:1}
/* starter page: the molecule is centred in the window, between the title and the team card */
body[data-m="start"] #mol{left:14%;right:0;top:0;bottom:0;opacity:.85}
body[data-m="right"] #mol{left:50%;right:0;opacity:1}
body[data-m="mid"]   #mol{left:36%;right:14%;opacity:1}
body[data-m="ghost"] #mol{left:38%;right:0;opacity:.28}
body[data-m="stage"] #mol{opacity:1;z-index:6}
body[data-m="hidden"] #mol{opacity:0;pointer-events:none}
#mol canvas{display:block}
.veil{position:fixed;inset:0;z-index:2;pointer-events:none;transition:opacity .6s}
body[data-m="full"] .veil{background:radial-gradient(ellipse at 50% 50%, rgba(247,249,255,.55) 0%, rgba(247,249,255,.12) 45%, rgba(247,249,255,0) 70%)}
body[data-m="start"] .veil{background:linear-gradient(90deg, rgba(247,249,255,.92) 0%, rgba(247,249,255,.72) 30%, rgba(247,249,255,.25) 44%, rgba(247,249,255,0) 54%)}
body:not([data-m="full"]):not([data-m="start"]):not([data-m="stage"]):not([data-m="hidden"]) .veil{background:linear-gradient(90deg, rgba(247,249,255,.9) 0%, rgba(247,249,255,.55) 34%, rgba(247,249,255,0) 62%)}
body[data-m="stage"] .veil,body[data-m="hidden"] .veil{background:none}

/* ---------- chrome ---------- */
.topbar{position:fixed;z-index:20;top:0;left:0;right:0;height:var(--top);display:flex;align-items:center;justify-content:space-between;padding:0 var(--side);pointer-events:none}
.wordmark{font-family:var(--serif);font-size:20px;color:var(--ink-2);display:flex;align-items:center;gap:12px}
.wordmark em{font-style:normal;color:var(--blue);font-weight:500}
.wordmark img{height:44px}
.topbtns{display:flex;gap:10px;pointer-events:auto;align-items:center}
/* the university line: top right, on the starter page only */
.uni{font-size:14.5px;color:var(--blue);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-right:8px;white-space:nowrap;opacity:0;transition:opacity .4s var(--ease);pointer-events:none}
body[data-screen="attract"] .uni{opacity:1}
body:not([data-screen="attract"]) .uni{position:absolute;visibility:hidden}
.pill{border:1px solid var(--glass-line);background:var(--glass-2);color:var(--ink);border-radius:999px;padding:11px 22px;font-size:16px;font-weight:600;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);transition:transform .18s var(--ease),background .18s}
.pill:hover{background:#fff;transform:translateY(-1px)}
.iconbtn{width:46px;height:46px;border-radius:50%;border:1px solid var(--glass-line);background:var(--glass-2);display:grid;place-items:center;color:var(--ink-2);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);transition:transform .18s var(--ease),background .18s}
.iconbtn:hover{background:#fff;transform:translateY(-1px);color:var(--blue)}
.iconbtn svg{width:18px;height:18px}

.journey{position:fixed;z-index:20;left:50%;bottom:26px;transform:translateX(-50%);display:flex;align-items:center;gap:6px;padding:8px 10px;border-radius:999px;
  background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:opacity .4s,transform .5s var(--ease)}
.journey[hidden]{display:flex;opacity:0;pointer-events:none;transform:translate(-50%,24px)}
.journey ol{list-style:none;display:flex;gap:6px;margin:0;padding:0 4px}
.jdot{position:relative;width:46px;height:46px;border-radius:50%;border:1px solid transparent;background:transparent;font-size:14px;font-weight:600;color:var(--mute);letter-spacing:.04em;display:grid;place-items:center;transition:all .25s var(--ease)}
.jdot::before{content:"";position:absolute;inset:6px;border-radius:50%;background:radial-gradient(circle at 32% 28%, #fff 0 10%, var(--blue-4) 55%, var(--blue-3) 100%);opacity:0;transform:scale(.6);transition:all .3s var(--ease);z-index:-1}
.jdot:hover{color:var(--blue)} .jdot:hover::before{opacity:1;transform:scale(1)}
.jdot.on{color:#fff}
.jdot.on::before{opacity:1;transform:scale(1);background:radial-gradient(circle at 32% 28%, var(--blue-2) 0 6%, var(--blue) 70%, #4B5DA5 100%);box-shadow:0 8px 18px rgba(90,109,183,.35)}
.jdot.sound.on::before{background:radial-gradient(circle at 32% 28%, var(--gold-2) 0 6%, var(--gold) 70%, #A8781C 100%);box-shadow:0 8px 18px rgba(201,147,38,.35)}
.jdot.seen{color:var(--ink-2)}
.jbtn{width:44px;height:44px;border-radius:50%;border:0;background:transparent;color:var(--ink-2);display:grid;place-items:center;transition:background .2s,color .2s}
.jbtn:hover{background:var(--blue-4);color:var(--blue)} .jbtn svg{width:18px;height:18px}
.jsep{width:1px;height:26px;background:var(--glass-edge);margin:0 4px}

/* ---------- screens + reveals ---------- */
#stage{position:fixed;inset:0;z-index:5}
.screen{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .55s var(--ease)}
.screen.on{opacity:1;pointer-events:auto}
.rv{opacity:0}
.screen.on .rv,.tabpane.on .rv{animation:rise .85s var(--ease) both;animation-delay:calc(var(--i,0)*95ms + 120ms)}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.glass{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r);box-shadow:var(--shadow);backdrop-filter:blur(18px) saturate(1.2);-webkit-backdrop-filter:blur(18px) saturate(1.2)}
.num{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:50%;flex:none;font-size:14px;font-weight:600;color:var(--blue);letter-spacing:.04em;
  background:radial-gradient(circle at 32% 28%, #fff 0 12%, var(--blue-4) 58%, var(--blue-3) 100%);
  box-shadow:inset -6px -8px 14px rgba(90,109,183,.18), inset 4px 5px 10px rgba(255,255,255,.9), 0 10px 22px rgba(72,90,160,.16);border:1px solid rgba(255,255,255,.85)}
.num.sound{color:#8A6212;background:radial-gradient(circle at 32% 28%, #fff 0 12%, #FBF1D9 58%, var(--gold-3) 100%);box-shadow:inset -6px -8px 14px rgba(201,147,38,.22), inset 4px 5px 10px rgba(255,255,255,.9), 0 10px 22px rgba(201,147,38,.18)}
.step{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:600;color:var(--blue);letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px}
.step::before{content:"";width:28px;height:1px;background:currentColor;opacity:.6}
.sound .step,.step.sound{color:var(--gold)}
.kicker{font-size:14.5px;color:var(--blue);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin:0 0 14px}

/* quotation block */
.quote{font-family:var(--serif);font-style:italic;font-size:clamp(17px,calc(1.35*var(--vw)),21px);line-height:1.5;color:var(--ink);padding:18px 22px 16px;margin:0;
  border-radius:var(--r-sm);background:rgba(255,255,255,.5);border:1px solid rgba(255,255,255,.8)}
.quote cite{display:block;font-family:var(--sans);font-style:normal;font-size:14px;color:var(--ink-2);margin-top:8px;letter-spacing:.02em}

/* ---------- buttons ---------- */
.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.btn{min-height:54px;padding:0 24px;border-radius:999px;border:1px solid var(--glass-edge);background:rgba(255,255,255,.72);color:var(--ink);font-size:16.5px;font-weight:600;
  display:inline-flex;align-items:center;gap:10px;white-space:nowrap;transition:transform .18s var(--ease),box-shadow .18s,background .18s,border-color .18s;box-shadow:var(--shadow-sm)}
.btn:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--blue-3)}
.btn:active{transform:translateY(0)}
.btn.go{background:linear-gradient(180deg,var(--blue-2),var(--blue));border-color:transparent;color:#fff;box-shadow:0 12px 26px rgba(90,109,183,.35)}
.btn.go:hover{filter:brightness(1.06)}
.btn.au{background:linear-gradient(180deg,var(--gold-2),var(--gold));border-color:transparent;color:#2E2205;box-shadow:0 12px 26px rgba(201,147,38,.32)}
.btn.au:hover{filter:brightness(1.06)}
.btn.au.playing{animation:glow 1.4s ease-in-out infinite}
@keyframes glow{0%,100%{box-shadow:0 12px 26px rgba(201,147,38,.32)}50%{box-shadow:0 12px 34px rgba(201,147,38,.62),0 0 0 8px rgba(201,147,38,.12)}}
.btn .ico{width:18px;height:18px;flex:none}
.btn[hidden]{display:none}
.btn.sm{min-height:42px;padding:0 16px;font-size:15px}

/* ---------- starter page ---------- */
#attract{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:clamp(24px,calc(3*var(--vw)),56px);align-items:center;padding:var(--top) var(--side) 60px;overflow:auto}
#attract .lead{max-width:760px}
#attract h1{font-size:clamp(54px,calc(6.6*var(--vw)),104px);line-height:.98;font-weight:500;letter-spacing:-.025em;
  background:linear-gradient(120deg,var(--ink) 20%,var(--blue) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;margin:6px 0 18px}
#attract .sub{font-size:clamp(19px,calc(1.8*var(--vw)),26px);color:var(--ink-2);font-weight:300;margin-bottom:26px}
#attract .quote{margin:0 0 26px;max-width:640px}
.pulse{display:inline-flex;align-items:center;gap:16px;border:1px solid var(--glass-line);background:var(--glass-2);color:var(--blue);border-radius:999px;padding:16px 34px;font-size:18px;font-weight:600;
  box-shadow:var(--shadow);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:pointer}
.pulse b{width:12px;height:12px;border-radius:50%;background:var(--blue);animation:beat 2.4s ease-in-out infinite}
@keyframes beat{0%,100%{transform:scale(.8);box-shadow:0 0 0 0 rgba(90,109,183,.45)}50%{transform:scale(1.15);box-shadow:0 0 0 14px rgba(90,109,183,0)}}
.team{padding:clamp(22px,calc(2.2*var(--vw)),32px) clamp(22px,calc(2.2*var(--vw)),32px) 24px;max-width:520px;justify-self:end;width:100%}
.team h3{font-size:clamp(20px,calc(1.6*var(--vw)),25px);margin-bottom:14px}
.team .tlab{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:600;margin:14px 0 8px}
.mentor{display:flex;gap:14px;align-items:flex-start;padding:10px 0;border-top:1px solid rgba(90,109,183,.12)}
.mentor:first-of-type{border-top:0}
.team .av{width:44px;height:44px;border-radius:50%;flex:none;display:grid;place-items:center;font-family:var(--serif);font-size:16px;color:#fff;
  background:radial-gradient(circle at 32% 28%, var(--blue-2) 0 6%, var(--blue) 70%, #4B5DA5 100%);box-shadow:inset 3px 4px 8px rgba(255,255,255,.35),0 8px 16px rgba(90,109,183,.28)}
.mentor b{display:block;font-size:17px;font-weight:600}
.mentor span{display:block;font-size:14.5px;color:var(--ink-2);line-height:1.4}
.students{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}
.stu{display:flex;align-items:center;gap:10px;padding:8px 12px 8px 8px;border-radius:999px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9)}
.stu .av{width:36px;height:36px;font-size:13px}
.stu b{font-size:15.5px;font-weight:600;line-height:1.2}
.mentor .av.m{width:36px;height:36px;font-size:13px;background:radial-gradient(circle at 32% 28%, #fff 0 12%, var(--blue-4) 58%, var(--blue-3) 100%);color:var(--blue);box-shadow:inset -4px -6px 10px rgba(90,109,183,.18), inset 3px 4px 8px rgba(255,255,255,.9)}
.mentor{padding:7px 0}
.mentor b{font-size:15.5px}
.mentor span{font-size:13.5px}

/* ---------- home ---------- */
#home{display:flex;flex-direction:column;padding:var(--top) var(--side) var(--bottom);overflow:auto}
#home .inner{margin:auto 0}
#home h2{font-size:clamp(28px,calc(3.2*var(--vw)),54px);margin:0 0 26px;white-space:nowrap;line-height:1.04}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:min(1080px,calc(62*var(--vw)))}
.tile{position:relative;text-align:left;min-height:160px;padding:20px 22px 22px;border-radius:22px;background:var(--glass);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);display:flex;flex-direction:column;gap:6px;transition:transform .28s var(--ease),box-shadow .28s,background .28s,border-color .28s}
.tile:hover,.tile:active{background:var(--glass-2);transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-3)}
.tile .n{display:inline-grid;place-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);background:var(--blue-4);width:max-content;margin-bottom:4px}
.tile .t{display:block;font-family:var(--serif);font-size:clamp(19px,calc(1.5*var(--vw)),24px);font-weight:500;line-height:1.15}
.tile .d{display:block;font-size:15.5px;color:var(--ink-2);line-height:1.42}
.tile.sound .n{color:#8A6212;background:var(--gold-3)}
.tile::after{content:"";position:absolute;right:18px;bottom:18px;width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 32% 28%, #fff 0 12%, var(--blue-4) 58%, var(--blue-3) 100%);
  box-shadow:inset -4px -6px 10px rgba(90,109,183,.18), inset 3px 4px 8px rgba(255,255,255,.9);opacity:0;transform:scale(.5);transition:all .3s var(--ease)}
.tile.sound::after{background:radial-gradient(circle at 32% 28%, #fff 0 12%, #FBF1D9 58%, var(--gold-3) 100%)}
.tile:hover::after{opacity:1;transform:scale(1)}

/* ---------- shared content blocks ---------- */
.dock{position:absolute;z-index:3;left:var(--side);bottom:var(--bottom);width:min(560px,calc(40*var(--vw)));padding:clamp(22px,calc(2.2*var(--vw)),34px) clamp(24px,calc(2.3*var(--vw)),36px)}
.dock h2{font-size:clamp(26px,calc(2.5*var(--vw)),38px);margin:0 0 12px}
.dock p{font-size:clamp(16px,calc(1.25*var(--vw)),19px);line-height:1.55;color:var(--ink-2);margin:0 0 10px}
.dock p.small{font-size:14.5px;color:var(--mute);margin-bottom:0}
.dock p.small[hidden]{display:none}
.dock p.big{color:var(--ink);font-size:clamp(17.5px,calc(1.45*var(--vw)),22px);font-weight:300}
.hdr{position:absolute;z-index:3;left:var(--side);top:var(--top);max-width:min(760px,calc(50*var(--vw)))}
.hdr h2{font-size:clamp(32px,calc(3.5*var(--vw)),54px);margin:0 0 12px;line-height:1.06}
.hdr p{font-size:clamp(16.5px,calc(1.35*var(--vw)),21px);color:var(--ink-2);line-height:1.5;max-width:52ch}

/* section 1 */
.beats{position:absolute;z-index:3;right:var(--side);top:calc(var(--top) + calc(6*var(--vh)));display:flex;flex-direction:column}
.beat{position:relative;display:flex;align-items:center;gap:18px;padding:13px 0;color:var(--mute);font-family:var(--serif);font-size:clamp(18px,calc(1.55*var(--vw)),24px);font-weight:400;transition:color .4s;text-align:right;flex-direction:row-reverse}
.beat i{width:18px;height:18px;border-radius:50%;flex:none;border:1px solid var(--blue-3);background:#fff;transition:all .4s var(--ease);position:relative}
.beat i::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--blue);opacity:0;transform:scale(.4);transition:all .4s var(--ease)}
.beat + .beat::before{content:"";position:absolute;right:8.5px;top:-13px;height:26px;width:1px;background:var(--blue-3)}
.beat.live{color:var(--ink);font-weight:500}
.beat.live i{border-color:var(--blue);box-shadow:0 0 0 8px rgba(90,109,183,.12)}
.beat.live i::after{opacity:1;transform:scale(1)}
.beat.done{color:var(--ink-2)} .beat.done i::after{opacity:.5;transform:scale(.7)}
/* the full passage in the card's original width: the text scrolls inside a short box, the citation stays below it,
   and a fade at the bottom shows there is more to read (removed once the end is reached) */
.s1quote{position:absolute;z-index:3;right:var(--side);bottom:var(--bottom);width:min(420px,calc(30*var(--vw)));
  font-size:clamp(13px,calc(.42*var(--vw)) + calc(.55*var(--vh)),15px);line-height:1.45;padding:14px 12px 12px 18px;
  background:rgba(255,255,255,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-sm)}
.s1quote .qtext{max-height:clamp(180px,calc(26*var(--vh)),290px);overflow-y:auto;padding-right:8px;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--blue-3) transparent;
  -webkit-mask-image:linear-gradient(180deg,#000 calc(100% - 40px),transparent);mask-image:linear-gradient(180deg,#000 calc(100% - 40px),transparent)}
.s1quote .qtext.end{-webkit-mask-image:none;mask-image:none}
.s1quote .qtext:focus-visible{outline:2px solid var(--blue-3);outline-offset:4px}
.s1quote p+p{margin-top:.55em}

/* section 2 */
.meters{position:absolute;z-index:3;right:var(--side);top:var(--top);width:min(380px,calc(28*var(--vw)));display:flex;flex-direction:column;gap:11px}
.meter{padding:14px 20px 12px;border-radius:var(--r-sm);background:rgba(255,255,255,.34);border:1px solid rgba(255,255,255,.55);opacity:.38;transform:scale(.97);transition:all .5s var(--ease);position:relative;overflow:hidden}
.meter.live{opacity:1;transform:scale(1);background:var(--glass-2);box-shadow:var(--shadow-sm);border-color:var(--glass-line)}
.meter .lab{font-size:13px;color:var(--ink-2);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.meter .val{font-family:var(--serif);font-size:clamp(24px,calc(2.1*var(--vw)),34px);margin-top:0;display:flex;align-items:baseline;gap:8px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--ink)}
.meter .val u{text-decoration:none;font-family:var(--sans);font-size:.48em;color:var(--mute);font-weight:400}
.meter.live .val{color:var(--blue)}
.spark{display:block;width:100%;height:36px;margin-top:4px}
/* tap a lit meter to see only its mark */
.meter.live{cursor:pointer}
.meter.live:hover{border-color:var(--blue-3)}
.meter.focus{box-shadow:0 0 0 3px var(--gold-2),var(--shadow-sm)}
.meter.dim{opacity:.6}
.meter:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.meter .mark{display:none;font-size:12.5px;line-height:1.35;color:var(--ink-2);margin-top:4px}
.meter.live .mark{display:block}
.meter .cdot{width:16px;height:16px;border-radius:50%;align-self:center;background:var(--blue-3);flex:none}
.ckey{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:12px;font-weight:600;color:var(--ink-2);margin-top:4px}
.ckey b{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:4px;vertical-align:-1px}
.hdr .tip{font-size:15px;color:var(--blue);font-weight:600;margin-top:10px;max-width:none;white-space:nowrap}
.hdr .tip[hidden]{display:none}
@media(max-height:860px){:where(html:not(.fit)) .meter{padding:10px 16px 9px} :where(html:not(.fit)) .meter .val{font-size:clamp(20px,calc(1.7*var(--vw)),28px)} :where(html:not(.fit)) .spark{height:28px} :where(html:not(.fit)) .meters{gap:8px}}

/* sections 3/4 layout */
.soundwrap{position:absolute;z-index:3;left:var(--side);right:var(--side);top:var(--top);bottom:var(--bottom);display:grid;grid-template-columns:minmax(330px,36%) 1fr;gap:26px;align-items:stretch}
.soundwrap .col{display:flex;flex-direction:column;min-height:0;gap:18px}
.soundwrap .hdr,.soundwrap .dock{position:static;max-width:none;width:auto}
.soundwrap .hdr h2{font-size:clamp(28px,calc(3*var(--vw)),46px)}
.soundwrap .hdr p{font-size:clamp(16px,calc(1.25*var(--vw)),19.5px)}
.soundwrap .dock{margin-top:auto}
.settings{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 10px}
.settings span{padding:6px 12px;border-radius:999px;background:var(--gold-3);color:#5E4611;font-size:14px;font-weight:600}

/* section 3 · stage */
.stagepanel{display:flex;flex-direction:column;flex:1;min-height:0;padding:14px 16px 12px;position:relative;overflow:hidden}
.media{position:relative;flex:1;min-height:200px;border-radius:18px;overflow:hidden;background:radial-gradient(ellipse at 50% 60%, rgba(255,255,255,.55), rgba(230,236,251,.35));border:1px solid rgba(255,255,255,.7)}
/* the VMD render keeps the molecule in the middle third of a dark frame: enlarge it and let the panel crop the empty margins */
.media video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#091320;display:none;transform:scale(1.24);transform-origin:50% 50%}
.media.hasvideo{background:#091320;border-color:rgba(9,19,32,.35)}
.media.hasvideo video{display:block}
.nowbar{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:10px}
.now{padding:8px 11px;border-radius:14px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.85);min-width:0}
.now .lab{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2);line-height:1.25;min-height:2.5em;display:flex;align-items:flex-end}
.now .v{font-family:var(--serif);font-size:clamp(14px,calc(1.1*var(--vw)),19px);font-weight:500;line-height:1.2;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-variant-numeric:tabular-nums}
.now .s{font-size:12.5px;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.now.m1 .v{color:var(--m1)} .now.m2 .v{color:var(--m2)} .now.m3 .v{color:var(--m3)} .now.m4 .v{color:var(--m4)} .now.t1 .v{color:var(--t1)}
.volbar{height:8px;border-radius:999px;background:var(--blue-4);margin-top:6px;overflow:hidden}
.volbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold-2),var(--gold));border-radius:999px;transition:width .12s linear}
.regs{display:flex;gap:4px;margin-top:6px}
.regs i{flex:1;height:8px;border-radius:999px;background:var(--blue-4);transition:background .2s}
.regs i.on{background:var(--blue)}
.score{margin-top:10px;position:relative;height:46px;border-radius:12px;overflow:hidden;cursor:pointer;background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.85)}
.score svg{width:100%;height:100%;display:block}
.score .ph{position:absolute;top:0;bottom:0;width:2px;background:var(--rose);left:0;pointer-events:none;box-shadow:0 0 0 1px rgba(255,255,255,.8)}
/* one row of controls (play, time, note, enlarge), the legend on its own row underneath */
.transport{display:grid;grid-template-columns:auto auto minmax(0,1fr) auto;align-items:center;gap:6px 12px;margin-top:8px}
.transport #zoom3{grid-column:4;grid-row:1}
.transport .hint2{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.transport .legend{grid-column:1/-1;grid-row:2;margin-left:0;justify-content:flex-start}
.transport .time{font-variant-numeric:tabular-nums;font-size:15px;color:var(--ink-2);min-width:96px}
.transport .hint2{font-size:13px;color:var(--mute)}
.legend{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:12.5px;color:var(--ink-2);margin-left:auto}
.legend b{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:middle}
/* the stars of the VMD video, with a link to the dictionary */
.legend .lgstar{flex-basis:100%}
.legend .lgstar[hidden]{display:none}
.legend b.star{width:auto;height:auto;border-radius:0;background:none;color:#6F93CF;font-size:14px;line-height:1;margin-right:6px}
.dictlink{border:0;background:none;padding:0;font-size:inherit;font-weight:700;color:var(--blue);text-decoration:underline;text-underline-offset:2px}
.dictlink:hover{color:var(--ink)}

/* section 3 · the alternative sonification: its own dock, readouts, piano roll and legend */
#s3:not(.alt) .alt-only{display:none!important}
#s3.alt .main-only{display:none!important}
@media(max-height:950px){:where(html:not(.fit)) #s3altdock{padding:22px 28px} :where(html:not(.fit)) #s3altdock p{font-size:clamp(15px,calc(1.05*var(--vw)),17px);margin-bottom:8px} :where(html:not(.fit)) #s3altdock .row{margin-top:14px}}
.legend .roll{display:inline-block;width:14px;height:5px;border-radius:2px;margin-right:6px;vertical-align:middle}
/* the alternative's card: how it differs from the main sonification */
#s3altdock .difflab{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin:4px 0 6px}
.altdiff{display:grid;grid-template-columns:auto 1fr 1fr;border-radius:14px;overflow:hidden;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.9);margin-bottom:10px}
.altdiff>div{padding:7px 10px;font-size:13.5px;line-height:1.4;color:var(--ink-2);border-top:1px solid rgba(90,109,183,.12);min-width:0}
.altdiff .dh{border-top:0;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);background:rgba(230,236,251,.75)}
.altdiff .dr{font-size:12px;font-weight:700;color:var(--ink);white-space:nowrap}
.altdiff .alt{background:rgba(246,232,198,.5);color:var(--ink)}
.altdiff .dh.alt{background:var(--gold-3);color:#8A6212}
#s3altdock .altline{font-size:clamp(14px,calc(1*var(--vw)),16px);line-height:1.45;color:var(--ink-2);margin-bottom:0}
#s3altdock .altline b{color:var(--ink);font-weight:600}
/* the switch between the two sonifications sits at the bottom right, like the game button on Home */
.altbtn{position:absolute;z-index:4;right:var(--side);bottom:30px;min-height:54px}
body.s3zoom .altbtn{opacity:0;pointer-events:none}
#s3.alt .media video{display:none!important}
#s3.alt .media.hasvideo{background:radial-gradient(ellipse at 50% 60%, rgba(255,255,255,.55), rgba(230,236,251,.35));border-color:rgba(255,255,255,.7)}

/* section 3 · enlarged view: the picture fills the window, the audio display stays along the bottom */
.stagepanel .nowbar,.stagepanel .score,.stagepanel .transport{flex:none}
.stagepanel .media{min-height:120px}
.iconbtn.sm{width:40px;height:40px;flex:none}
.iconbtn.sm svg{width:17px;height:17px}
.playbtn{color:#2E2205;background:linear-gradient(180deg,var(--gold-2),var(--gold));border-color:transparent}
.playbtn:hover{background:linear-gradient(180deg,var(--gold-2),var(--gold));color:#2E2205;filter:brightness(1.06)}
.playbtn .i-pause,.playbtn.playing .i-play{display:none}
.playbtn.playing .i-pause{display:block}
#zoom3 .i-out,#s3.zoomed #zoom3 .i-in{display:none}
#s3.zoomed #zoom3 .i-out{display:block}
#s3.zoomed .stagepanel{position:fixed;inset:12px;z-index:25;animation:none;opacity:1;background:rgba(247,249,255,.97);padding:14px 16px 12px}
#s3.zoomed .soundwrap .col:first-child{visibility:hidden}
body.s3zoom .topbar,body.s3zoom .journey{opacity:0;pointer-events:none}

/* section 4 */
.rules{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rule{padding:16px 18px;border-radius:var(--r-sm);background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.85);display:flex;flex-direction:column;gap:6px;min-width:0}
.rule .arrow{display:flex;align-items:center;gap:8px;font-family:var(--serif);font-size:clamp(16px,calc(1.25*var(--vw)),19px);font-weight:500;flex-wrap:wrap}
.rule .arrow svg{width:18px;height:18px;color:var(--gold);flex:none}
.rule p{font-size:14px;color:var(--ink-2);line-height:1.45}
.rule .arrow{font-size:clamp(17px,calc(1.4*var(--vw)),21px)}
.inst{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.ib{display:inline-flex;align-items:center;gap:7px;padding:6px 11px 6px 8px;white-space:nowrap;border-radius:999px;border:1px solid rgba(255,255,255,.9);background:rgba(255,255,255,.7);font-size:13.5px;font-weight:600;transition:transform .15s var(--ease),box-shadow .15s}
.ib:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.ib i{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:9px;font-style:normal;font-weight:700}
.ib.m1 i{background:var(--m1)} .ib.m2 i{background:var(--m2)} .ib.m3 i{background:var(--m3)} .ib.m4 i{background:var(--m4)} .ib.t1 i{background:var(--t1)}
.ib.playing{box-shadow:0 0 0 3px rgba(201,147,38,.25)}
.compare{display:flex;flex-direction:column;padding:20px 22px 18px;gap:12px}
.compare .score{margin-top:4px;height:72px}
@media(max-width:1100px){:where(html:not(.fit)) .nowbar{grid-template-columns:repeat(3,1fr)}}
.compare .legend{margin-left:0}
.compare h3{font-size:clamp(20px,calc(1.7*var(--vw)),26px)}
.compare .lead{font-size:15px;color:var(--ink-2)}
.runs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.runbtn{text-align:left;padding:10px 14px;border-radius:14px;border:1px solid rgba(255,255,255,.8);background:rgba(255,255,255,.5);transition:all .2s var(--ease);position:relative;min-width:0}
.runbtn:hover{background:rgba(255,255,255,.85);border-color:var(--gold-2)}
.runbtn.sel{background:#fff;border-color:var(--gold);box-shadow:0 8px 20px rgba(201,147,38,.16)}
.runbtn b{display:block;font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.runbtn span{display:block;font-size:13px;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini{display:flex;align-items:center;gap:12px}
.mini .bar{flex:1;height:8px;border-radius:999px;background:var(--blue-4);overflow:hidden;cursor:pointer}
.mini .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold-2),var(--gold))}
.mini .time{font-size:14px;color:var(--ink-2);font-variant-numeric:tabular-nums;min-width:96px;text-align:right}

/* section 5 · tabs */
.tabs{position:absolute;z-index:3;left:var(--side);right:var(--side);top:var(--top);bottom:var(--bottom);display:flex;flex-direction:column;gap:16px}
.tabs .hdrrow{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.tabs .hdr{position:static;max-width:min(760px,calc(60*var(--vw)))}
.tabbar{display:flex;flex-wrap:wrap;gap:6px;padding:6px;border-radius:28px;background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.tab{border:0;background:transparent;padding:10px 18px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);transition:all .2s var(--ease)}
.tab:hover{color:var(--gold)}
.tab.on{background:linear-gradient(180deg,var(--gold-2),var(--gold));color:#2E2205;box-shadow:0 8px 18px rgba(201,147,38,.3)}
.tabpane{display:none;flex:1;min-height:0;overflow:auto;padding-bottom:6px}
.tabpane.on{display:block}
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.why .card{padding:22px 24px}
.timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:22px;padding-top:22px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:36px;height:1px;background:var(--blue-3)}
.tl{position:relative;padding-top:12px}
.tl i{position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:50%;background:radial-gradient(circle at 32% 28%, #fff 0 10%, var(--gold-2) 55%, var(--gold) 100%);box-shadow:0 6px 14px rgba(201,147,38,.35)}
.tl b{display:block;font-family:var(--serif);font-size:20px;margin:12px 0 4px;font-weight:600}
.tl p{font-size:15.5px;color:var(--ink-2);line-height:1.45}
.bigquote{font-size:clamp(20px,calc(1.9*var(--vw)),28px);padding:26px 30px 22px;background:rgba(255,255,255,.62)}
.cr{display:grid;grid-template-columns:1fr auto 1fr;gap:10px 14px;align-items:stretch}
.cr .h{font-family:var(--serif);font-size:18px;font-weight:600;padding:4px 6px}
.cr .h.c{color:#B4483C} .cr .h.r{color:#1F7E7A}
.cr .c,.cr .r{padding:14px 18px;border-radius:14px;font-size:15.5px;line-height:1.45}
.cr .c{background:#F8E6E3;border:1px solid #EBC9C4;color:var(--ink)}
.cr .r{background:#DFF0EE;border:1px solid #BFDEDA;color:var(--ink)}
.cr .a{display:grid;place-items:center;color:var(--ink-2)} .cr .a svg{width:22px;height:22px}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.principle{padding:18px 20px;border-radius:var(--r-sm);background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm)}
.principle b{display:block;font-family:var(--serif);font-size:19px;color:var(--gold);margin-bottom:6px}
.principle p{font-size:14.5px;line-height:1.5;color:var(--ink-2)}
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cat{padding:22px 24px;border-radius:var(--r-sm);min-height:150px;background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm);color:var(--ink);position:relative;overflow:hidden}
.cat b{display:block;font-family:var(--serif);font-size:22px;margin-bottom:8px}
.cat p{font-size:15.5px;line-height:1.45;color:var(--ink-2)}
.cat::before{content:"";position:absolute;left:24px;top:0;width:44px;height:4px;border-radius:0 0 4px 4px}
.cat.art::before{background:#C4574B} .cat.out::before{background:var(--gold)} .cat.sci::before{background:#2F8C86}
.cat.art b{color:#B4483C} .cat.out b{color:#A8781C} .cat.sci b{color:#1F7E7A}
.axis{display:flex;justify-content:space-between;font-style:italic;font-family:var(--serif);font-size:15px;color:var(--ink-2);margin-top:12px}
/* section 5 · techniques: five cards and a note on why parameter mapping needs care */
.techs{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;align-items:stretch}
.tech{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:6px;padding:20px 20px 16px;border-radius:var(--r-sm);background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm);min-width:0}
.tech::before{content:"";position:absolute;left:20px;top:0;width:44px;height:4px;border-radius:0 0 4px 4px;background:var(--blue)}
.tech b{font-family:var(--serif);font-size:clamp(18px,calc(1.4*var(--vw)),21px);font-weight:600;color:var(--blue);line-height:1.2}
.tech b span{font-family:var(--sans);font-size:.62em;font-weight:700;letter-spacing:.06em;color:var(--ink-2);margin-left:4px}
.tech p{font-size:14.5px;line-height:1.5;color:var(--ink-2)}
.tech p.ex{margin-top:auto;padding-top:6px;font-family:var(--serif);font-style:italic;font-size:14.5px;color:var(--ink)}
.tech p.ex::before{content:"e.g. ";font-style:normal;font-family:var(--sans);font-size:12.5px;font-weight:700;color:var(--mute)}
.tech.ours{background:rgba(246,232,198,.6);border-color:var(--gold-2)}
.tech.ours::before{background:var(--gold)} .tech.ours b{color:#8A6212}
.tech em{align-self:flex-start;font-style:normal;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#8A6212;background:var(--gold-3);padding:3px 9px;border-radius:999px}
.techcare{margin-top:14px;padding:16px 20px;border-radius:var(--r-sm);background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm)}
.techcare b{display:block;font-family:var(--serif);font-size:19px;color:#B4483C;margin-bottom:6px}
.techcare ul{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:6px 24px}
.techcare li{position:relative;padding-left:14px;font-size:14.5px;line-height:1.45;color:var(--ink-2)}
.techcare li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;border-radius:50%;background:#C4574B}
@media(max-width:1380px){:where(html:not(.fit)) .techs{grid-template-columns:repeat(3,1fr)}}
@media(max-height:950px){:where(html:not(.fit)) .tech{padding:15px 16px 12px;gap:4px} :where(html:not(.fit)) .tech p,:where(html:not(.fit)) .tech p.ex{font-size:14px} :where(html:not(.fit)) .techcare{margin-top:10px;padding:12px 16px} :where(html:not(.fit)) .techcare b{margin-bottom:4px}
  :where(html:not(.fit)) .altdiff>div{padding:5px 9px;font-size:13px} :where(html:not(.fit)) #s3altdock .difflab{margin:2px 0 5px}}

/* previous MD sonification research: a comparison table, then what it focuses on, what it misses, how ours differs */
.prevlead{font-size:clamp(15.5px,calc(1.2*var(--vw)),18.5px);line-height:1.5;color:var(--ink-2);max-width:96ch;margin-bottom:10px}
.prevgrid{display:grid;grid-template-columns:minmax(250px,1fr) 3.3fr;gap:14px;align-items:start}
.plabel{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin-bottom:8px}
.earlier{display:flex;flex-direction:column;gap:8px}
.earlier .plabel{margin-bottom:0}
.study{padding:10px 14px;border-radius:14px;background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm)}
.study b{display:block;font-family:var(--serif);font-size:15.5px;font-weight:600;color:var(--blue);margin-bottom:2px}
.study p{font-size:13px;line-height:1.4;color:var(--ink-2)}
.prev{display:grid;grid-template-columns:minmax(130px,.62fr) repeat(3,1fr);border-radius:var(--r-sm);overflow:hidden;background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm)}
.prev>div{padding:8px 14px;font-size:14.5px;line-height:1.4;color:var(--ink);border-top:1px solid rgba(90,109,183,.12);min-width:0}
.prev .ph{border-top:0;background:rgba(230,236,251,.75);display:flex;flex-direction:column;gap:1px;padding-top:11px;padding-bottom:10px}
.prev .ph b{font-family:var(--serif);font-size:17px;font-weight:600}
.prev .ph span{font-size:13px;color:var(--ink-2)}
.prev .rh{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);display:flex;align-items:center}
.prev .ours{background:rgba(246,232,198,.5)}
.prev .ph.ours{background:var(--gold-3)} .prev .ph.ours b{color:#8A6212}
.prev .no{color:#A9433A;font-weight:600}
.takeaways{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:12px}
.take{position:relative;overflow:hidden;padding:18px 20px 16px;border-radius:var(--r-sm);background:var(--glass-2);border:1px solid var(--glass-line);box-shadow:var(--shadow-sm)}
.take::before{content:"";position:absolute;left:20px;top:0;width:44px;height:4px;border-radius:0 0 4px 4px;background:var(--blue)}
.take b{display:block;font-family:var(--serif);font-size:19px;color:var(--blue);margin-bottom:6px}
.take p{font-size:14.5px;line-height:1.5;color:var(--ink-2)}
.take.gap::before{background:#C4574B} .take.gap b{color:#B4483C}
.take.ours::before{background:var(--gold)} .take.ours b{color:#A8781C}

/* sections 5/6 cards */
.cards{position:absolute;z-index:3;left:var(--side);right:var(--side);bottom:var(--bottom);display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:min(1400px,calc(92*var(--vw)))}
.card{padding:24px 26px 26px;display:flex;flex-direction:column;gap:8px;transition:transform .3s var(--ease),box-shadow .3s}
.card:hover{transform:translateY(-6px);box-shadow:0 30px 70px rgba(72,90,160,.22)}
.card h3{font-size:clamp(19px,calc(1.6*var(--vw)),25px);line-height:1.18}
.card p{font-size:15px;line-height:1.5;color:var(--ink-2)}
.card .fig{display:inline-grid;place-items:center;width:58px;height:58px;border-radius:50%;margin-bottom:4px;font-family:var(--serif);font-size:24px;font-weight:600;color:var(--blue);
  background:radial-gradient(circle at 32% 28%, #fff 0 12%, var(--blue-4) 58%, var(--blue-3) 100%);box-shadow:inset -7px -9px 16px rgba(90,109,183,.18), inset 5px 6px 12px rgba(255,255,255,.9), 0 12px 24px rgba(72,90,160,.16);border:1px solid rgba(255,255,255,.85)}
.card.au .fig{color:#8A6212;background:radial-gradient(circle at 32% 28%, #fff 0 12%, #FBF1D9 58%, var(--gold-3) 100%);box-shadow:inset -7px -9px 16px rgba(201,147,38,.22), inset 5px 6px 12px rgba(255,255,255,.9), 0 12px 24px rgba(201,147,38,.18)}
.card.q{gap:8px;padding:22px 24px 24px} .card.q h3{font-size:clamp(19px,calc(1.65*var(--vw)),26px)} .card.q p{font-size:16px;line-height:1.5}
.card.q .fig{width:46px;height:46px;font-size:19px}
.qwrap{position:absolute;z-index:3;left:var(--side);right:var(--side);top:var(--top);bottom:var(--bottom);display:flex;flex-direction:column;gap:18px}
.qwrap .hdrrow{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.qwrap .hdr{position:static;max-width:min(760px,calc(60*var(--vw)))}
.qwrap .dock.side{position:static;width:min(400px,calc(30*var(--vw)));padding:18px 22px 20px}
.qwrap .cards{position:static;flex:1;min-height:0;max-width:none;grid-template-columns:repeat(6,1fr);grid-auto-rows:1fr;gap:16px;overflow:auto}
@media(max-height:800px){:where(html:not(.fit)) .card.q{padding:14px 18px 16px;gap:4px} :where(html:not(.fit)) .card.q .fig{width:38px;height:38px;font-size:16px;margin-bottom:0} :where(html:not(.fit)) .card.q h3{font-size:clamp(17px,calc(1.35*var(--vw)),21px)} :where(html:not(.fit)) .card.q p{font-size:14.5px;line-height:1.42} :where(html:not(.fit)) .qwrap .hdr h2{font-size:clamp(26px,calc(2.8*var(--vw)),40px)} :where(html:not(.fit)) .qwrap .hdr p{font-size:15px} :where(html:not(.fit)) .qwrap .dock.side{padding:12px 18px 14px} :where(html:not(.fit)) .qwrap .dock.side .btn{min-height:44px} :where(html:not(.fit)) .qwrap{gap:12px}}
.cards.five .card:nth-child(-n+3){grid-column:span 2}
.cards.five .card:nth-child(4){grid-column:2/4}
.cards.five .card:nth-child(5){grid-column:4/6}

/* ---------- drawer ---------- */
.drawer{position:fixed;z-index:30;inset:0;background:rgba(225,232,249,.72);backdrop-filter:blur(22px) saturate(1.2);-webkit-backdrop-filter:blur(22px) saturate(1.2);display:flex;align-items:center;justify-content:center;padding:clamp(20px,calc(3*var(--vw)),56px);opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.drawer.on{opacity:1;pointer-events:auto}
.drawer .box{max-width:1320px;width:100%;max-height:100%;overflow:auto;padding:clamp(24px,calc(2.6*var(--vw)),40px) clamp(24px,calc(2.8*var(--vw)),44px);transform:translateY(16px);transition:transform .5s var(--ease)}
.drawer.on .box{transform:translateY(0)}
.drawer h3{font-size:clamp(24px,calc(2.4*var(--vw)),34px);margin:0 0 4px}
.drawer .lead{font-size:14px;color:var(--gold);letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin-bottom:18px}
.drawer .part+.part{margin-top:28px;padding-top:24px;border-top:1px solid rgba(90,109,183,.16)}
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px 12px;margin:0;padding:0;position:relative}
.spec{position:relative;padding:16px 16px;border-radius:18px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow-sm);opacity:0;transform:translateY(14px)}
.drawer.on .spec{animation:rise .7s var(--ease) both;animation-delay:calc(var(--i,0)*90ms + 150ms)}
.spec .num{width:38px;height:38px;font-size:12px;margin-bottom:10px}
.spec dt{font-size:12.5px;color:var(--ink-2);letter-spacing:.08em;text-transform:uppercase;font-weight:700;margin-bottom:4px}
.spec dd{margin:0;font-family:var(--serif);font-size:clamp(17px,calc(1.35*var(--vw)),22px);color:var(--ink);font-weight:500;line-height:1.2}
.spec dd small{display:block;font-family:var(--sans);font-size:.66em;color:var(--ink-2);font-weight:400;margin-top:3px;line-height:1.35}
.spec::after{content:"";position:absolute;right:-12px;top:34px;width:12px;height:1px;background:var(--blue-2);opacity:0}
.drawer.on .spec:not(:nth-child(4n))::after{animation:fadein .4s both;animation-delay:calc(var(--i,0)*90ms + 500ms)}
@keyframes fadein{to{opacity:.7}}
.layers{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.layer{position:relative;padding:16px 16px 14px;border-radius:18px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow-sm);opacity:0;transform:translateY(14px);min-width:0}
.drawer.on .layer{animation:rise .7s var(--ease) both;animation-delay:calc(var(--i,0)*120ms + 300ms)}
.layer .num{width:38px;height:38px;font-size:12px;margin-bottom:10px}
.layer h4{font-size:clamp(16px,calc(1.3*var(--vw)),20px);margin-bottom:8px}
.layer ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:5px}
.layer li{font-size:13.5px;color:var(--ink-2);line-height:1.4;padding-left:14px;position:relative}
.layer li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.layer li b{color:var(--ink);font-weight:600}
.layer::after{content:"";position:absolute;right:-12px;top:34px;width:12px;height:1px;background:var(--gold);opacity:0}
.drawer.on .layer:not(:last-child)::after{animation:fadein .4s both;animation-delay:calc(var(--i,0)*120ms + 700ms)}
/* the analyses run on the trajectory (a gold dot: read by the pipeline) */
.sublead{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px 14px;font-size:14px;color:var(--blue);letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin:24px 0 12px}
.sublead span{display:flex;align-items:center;gap:7px;font-size:13px;letter-spacing:.02em;text-transform:none;color:var(--ink-2);font-weight:600}
.sublead i{width:10px;height:10px;border-radius:50%;background:var(--gold)}
.analyses{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
@media(max-width:1380px){:where(html:not(.fit)) .analyses{grid-template-columns:repeat(3,1fr)}}
/* the link to the PDB entry (opens in the system browser) */
.spec a.ext{color:var(--blue);font-weight:600;text-decoration:underline;text-underline-offset:2px;word-break:break-word}
.spec a.ext:hover{color:var(--ink)}
.an,.next{position:relative;border-radius:18px;background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow-sm);opacity:0;transform:translateY(14px);min-width:0}
.an{padding:14px 16px}
.drawer.on .an{animation:rise .7s var(--ease) both;animation-delay:calc(var(--i,0)*80ms + 450ms)}
.an h4{font-size:clamp(15px,calc(1.15*var(--vw)),18px);margin-bottom:6px;padding-right:16px}
.an p{font-size:13.5px;line-height:1.4;color:var(--ink-2)}
.an.used::after{content:"";position:absolute;right:13px;top:16px;width:10px;height:10px;border-radius:50%;background:var(--gold)}
/* next steps */
.nexts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:1380px){:where(html:not(.fit)) .nexts{grid-template-columns:repeat(2,1fr)}}
.next{padding:16px 16px 14px}
.drawer.on .next{animation:rise .7s var(--ease) both;animation-delay:calc(var(--i,0)*110ms + 300ms)}
.next .num{width:38px;height:38px;font-size:13px;margin-bottom:8px}
.next h4{font-size:clamp(16px,calc(1.3*var(--vw)),20px);margin-bottom:8px}
.next ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:5px}
.next li{position:relative;padding-left:14px;font-size:13.5px;line-height:1.4;color:var(--ink-2)}
.next li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.next li b{color:var(--ink);font-weight:600}
.note{margin-top:18px;padding:14px 18px;border-radius:14px;background:var(--gold-3);color:#5E4611;font-size:15px;line-height:1.5;display:flex;gap:14px;align-items:flex-start}
.note::before{content:"";flex:none;width:10px;height:10px;border-radius:50%;background:var(--gold);margin-top:8px}
.warn{position:fixed;z-index:40;left:50%;bottom:100px;transform:translateX(-50%);background:var(--rose);color:#fff;padding:12px 22px;border-radius:999px;font-size:15px;max-width:calc(88*var(--vw));display:none;box-shadow:var(--shadow)}


/* ---------- dictionary (section three) ---------- */
.dict{position:fixed;z-index:32;inset:0;background:rgba(225,232,249,.72);backdrop-filter:blur(20px) saturate(1.2);-webkit-backdrop-filter:blur(20px) saturate(1.2);
  display:flex;align-items:center;justify-content:center;padding:clamp(20px,calc(3*var(--vw)),56px);opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.dict.on{opacity:1;pointer-events:auto}
.dict .box{max-width:880px;width:100%;max-height:100%;overflow:auto;padding:clamp(22px,calc(2.4*var(--vw)),36px) clamp(22px,calc(2.6*var(--vw)),40px);display:flex;flex-direction:column;gap:14px;transform:translateY(16px);transition:transform .45s var(--ease)}
.dict.on .box{transform:translateY(0)}
.dict h3{font-size:clamp(24px,calc(2.3*var(--vw)),34px)}
.entries{margin:0;display:flex;flex-direction:column;gap:12px}
.entry{padding:16px 20px;border-radius:18px;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.9)}
.entry.hl{box-shadow:0 0 0 3px var(--gold-2)}
.entry dt{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 10px;margin-bottom:6px}
.entry dt b{font-family:var(--serif);font-size:22px;font-weight:600;color:var(--blue)}
.entry dt span{font-size:14.5px;font-style:italic;color:var(--ink-2)}
.entry dd{margin:0;font-size:clamp(15.5px,calc(1.2*var(--vw)),17.5px);line-height:1.55;color:var(--ink)}
.entry.where{background:rgba(246,232,198,.55);border-color:var(--gold-2)}
.entry.where dt b{color:#8A6212}
.entry .c2{color:var(--m2);font-weight:700}

/* ---------- Eyes or ears? (game overlay) ---------- */
.game{position:fixed;z-index:30;inset:0;background:rgba(225,232,249,.78);backdrop-filter:blur(22px) saturate(1.2);-webkit-backdrop-filter:blur(22px) saturate(1.2);
  display:flex;align-items:center;justify-content:center;padding:clamp(16px,calc(2.6*var(--vw)),48px);opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.game.on{opacity:1;pointer-events:auto}
.gbox{max-width:1360px;width:100%;max-height:100%;overflow:auto;padding:clamp(22px,calc(2.4*var(--vw)),36px) clamp(22px,calc(2.6*var(--vw)),40px);display:flex;flex-direction:column;gap:16px;
  transform:translateY(16px);transition:transform .5s var(--ease)}
.game.on .gbox{transform:translateY(0)}
.ghead{display:flex;align-items:flex-start;gap:16px}
.ghead>div{flex:1;min-width:0}
.ghead h3{font-size:clamp(24px,calc(2.4*var(--vw)),36px)}
.ghead .step{margin-bottom:8px}
.gprog{align-self:center;font-family:var(--serif);font-size:20px;color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap}
.gpane p{font-size:clamp(16px,calc(1.25*var(--vw)),19px);line-height:1.55;color:var(--ink-2);margin:0 0 10px;max-width:70ch}
.gpane p.big{color:var(--ink);font-size:clamp(18px,calc(1.5*var(--vw)),23px);font-weight:300}
.gpane h3{font-size:clamp(22px,calc(2.1*var(--vw)),32px);margin-bottom:10px}
.gtask{font-size:16.5px!important;margin-bottom:12px!important}
.gviewwrap{position:relative;border-radius:18px;overflow:hidden;background:radial-gradient(ellipse at 50% 60%, rgba(255,255,255,.75), rgba(230,236,251,.5));border:1px solid rgba(255,255,255,.85)}
#gview{position:relative;width:100%;height:clamp(230px,calc(40*var(--vh)),430px);margin-top:26px}
.glabels{position:absolute;inset:0;display:grid;grid-template-columns:repeat(5,1fr);pointer-events:none}
.glabels span{display:flex;align-items:flex-start;justify-content:center;padding-top:12px;font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);
  border-right:1px solid rgba(90,109,183,.14)}
.glabels span.unk{border-right:0;color:#8A6212;box-shadow:inset 0 0 0 3px var(--gold-2);border-radius:0 18px 18px 0}
.gcards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.gcard{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 12px 16px;border-radius:18px;border:1px solid rgba(255,255,255,.9);background:rgba(255,255,255,.66);
  box-shadow:var(--shadow-sm);transition:transform .18s var(--ease),box-shadow .18s,border-color .18s;min-width:0}
.gcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
/* the instrument's picture, with the play badge in its corner */
.gpic{display:grid;place-items:center;width:100%;height:clamp(84px,calc(15*var(--vh)),150px);border-radius:14px;overflow:hidden;margin-bottom:2px;
  background:radial-gradient(ellipse at 50% 55%, rgba(255,255,255,.95), rgba(255,255,255,.25) 70%)}
.gpic img{display:block;max-width:94%;max-height:94%}
.gpic.q{font-family:var(--serif);font-size:clamp(52px,calc(7*var(--vh)),80px);font-weight:500;color:#A8781C;background:radial-gradient(ellipse at 50% 55%, rgba(255,255,255,.9), rgba(246,232,198,.35) 70%)}
.gcard i{position:absolute;top:10px;right:10px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:radial-gradient(circle at 32% 28%, var(--blue-2) 0 6%, var(--blue) 70%, #4B5DA5 100%);box-shadow:inset 3px 4px 8px rgba(255,255,255,.35),0 8px 16px rgba(90,109,183,.28)}
.gcard i::before{content:"";border-style:solid;border-width:7px 0 7px 11px;border-color:transparent transparent transparent #fff;margin-left:3px}
.gcard.m1 i{background:var(--m1)} .gcard.m2 i{background:var(--m2)} .gcard.m3 i{background:var(--m3)} .gcard.m4 i{background:var(--m4)}
.gcard.unk{background:rgba(246,232,198,.6);border-color:var(--gold-2)}
.gcard.unk i{background:radial-gradient(circle at 32% 28%, var(--gold-2) 0 6%, var(--gold) 70%, #A8781C 100%)}
.gcard b{font-family:var(--serif);font-size:19px;font-weight:500}
.gcard span{font-size:14px;color:var(--ink-2)}
.gcard.playing{border-color:var(--gold);box-shadow:0 0 0 4px rgba(201,147,38,.22)}
.gcard.playing i{animation:beat 1s ease-in-out infinite}
/* five columns, like the boxes above: each answer sits under its own reference, the fifth column (under the unknown) stays empty */
.ganswers{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:14px}
#ground[data-mode="eyes"] .ganswers{gap:0}
#ground[data-mode="eyes"] .gans{margin:0 8px}
.gans{min-height:60px;border-radius:999px;border:1px solid var(--glass-edge);background:rgba(255,255,255,.8);font-size:18px;font-weight:600;box-shadow:var(--shadow-sm);
  transition:transform .15s var(--ease),background .2s,border-color .2s,color .2s}
.gans:hover{transform:translateY(-2px);border-color:var(--blue-3);background:#fff}
.gans.right{background:#DFF0EE;border-color:#2A8F8C;color:#1F6E6B}
.gans.wrong{background:#F8E6E3;border-color:#C4574B;color:#A9433A}
.gscore{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:6px 0 16px}
.gscore div{padding:18px 22px;border-radius:18px;background:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.9)}
.gscore div.ears{background:rgba(246,232,198,.55);border-color:var(--gold-2)}
.gscore dt{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.gscore dd{margin:4px 0 0;font-family:var(--serif);font-size:clamp(26px,calc(2.4*var(--vw)),38px);font-weight:500}
.gscore dd small{display:block;font-family:var(--sans);font-size:14px;color:var(--ink-2);font-weight:400;margin-top:2px}
.gamebtn{position:fixed;z-index:21;right:var(--side);bottom:30px;min-height:54px}
@media(max-width:900px){:where(html:not(.fit)) .gcards{grid-template-columns:repeat(2,1fr)} :where(html:not(.fit)) .ganswers{grid-template-columns:repeat(2,1fr)}}

/* ---------- responsive ---------- */
@media(max-width:1380px){ :where(html:not(.fit)) .grid{grid-template-columns:repeat(2,1fr);max-width:min(760px,calc(60*var(--vw)))} :where(html:not(.fit)) .runs{grid-template-columns:repeat(3,1fr)} :where(html:not(.fit)) .rules{grid-template-columns:1fr;gap:10px} :where(html:not(.fit)) .rule{padding:12px 16px} }
@media(max-width:1180px){
  :where(html:not(.fit)):root{--top:84px;--bottom:100px}
  :where(html:not(.fit)) .cards{grid-template-columns:repeat(2,1fr)} :where(html:not(.fit)) .qwrap .cards{grid-template-columns:repeat(2,1fr);grid-auto-rows:auto;overflow:auto} :where(html:not(.fit)) .cards.five .card{grid-column:auto!important}
  :where(html:not(.fit)) .specs{grid-template-columns:repeat(2,1fr)} :where(html:not(.fit)) .spec::after{display:none}
  :where(html:not(.fit)) .layers{grid-template-columns:repeat(2,1fr)} :where(html:not(.fit)) .layer::after{display:none}
  :where(html:not(.fit)) .why{grid-template-columns:repeat(2,1fr)} :where(html:not(.fit)) .principles,:where(html:not(.fit)) .cats,:where(html:not(.fit)) .takeaways,:where(html:not(.fit)) .prevgrid,:where(html:not(.fit)) .techcare ul{grid-template-columns:1fr} :where(html:not(.fit)) .techs{grid-template-columns:repeat(2,1fr)}
  :where(html:not(.fit)) .analyses{grid-template-columns:repeat(3,1fr)} :where(html:not(.fit)) .prev>div{font-size:13.5px;padding:8px 10px}
  :where(html:not(.fit)) .soundwrap{grid-template-columns:minmax(300px,42%) 1fr;gap:18px} :where(html:not(.fit)) .rules{grid-template-columns:1fr}
  :where(html:not(.fit)) #attract{grid-template-columns:1fr} :where(html:not(.fit)) .team{justify-self:start}
}
@media(max-width:820px){
  :where(html:not(.fit)) .grid,:where(html:not(.fit)) .cards,:where(html:not(.fit)) .qwrap .cards{grid-template-columns:1fr}
  :where(html:not(.fit)) .dock{left:18px;right:18px;width:auto} :where(html:not(.fit)) .meters{left:18px;right:18px;top:auto;bottom:260px;width:auto}
  :where(html:not(.fit)) .beats,:where(html:not(.fit)) .s1quote{right:18px} :where(html:not(.fit)) .soundwrap,:where(html:not(.fit)) .tabs{grid-template-columns:1fr;left:18px;right:18px} :where(html:not(.fit)) .journey ol{display:none}
}
@media(prefers-reduced-motion:reduce){ *{animation:none!important;transition:none!important} .rv,.spec,.layer,.an,.next{opacity:1;transform:none} }