/* ============ TOKENS ============ */
:root{
  /* warm grounds */
  --cream:#F7F2E9;
  --cream-deep:#efe8da;
  --bone:#e9e1cf;
  --forest:#0d1f16;      /* tinted dark band */
  --forest-soft:#14291d;

  /* ink ramp (warm, never gray) */
  --ink:#20281f;
  --ink-soft:#4a5347;
  --ink-faint:#8b8f80;

  /* reserved accent = Melody Trails green (interaction / CTA only) */
  --green:#2f9e63;
  --green-deep:#1e7548;
  --green-glow:rgba(47,158,99,.16);

  /* note colours — the product's own language (decorative motif) */
  --n1:#7b3fa0; --n2:#e8489a; --n3:#e23a2c; --n4:#f18e1c;
  --n5:#f4c22b; --n6:#2fa84f; --n7:#1f8fd4;

  --radius:10px 22px 10px 22px;
  --radius-sm:8px 16px 8px 16px;
  --shadow:0 18px 50px -24px rgba(20,40,28,.45);
  --maxw:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--cream);
  color:var(--ink);
  font-family:"Heebo",system-ui,sans-serif;
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.grain{position:fixed;inset:0;width:100%;height:100%;opacity:.045;mix-blend-mode:multiply;pointer-events:none;z-index:1}

/* ============ SHARED ============ */
.kicker{
  font-family:"IBM Plex Mono",monospace;
  font-size:.74rem;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--ink-soft);
  display:flex;align-items:center;gap:.6em;
}
.kicker.center{justify-content:center}
.kdot{width:.5em;height:.5em;border-radius:50%;background:var(--green);display:inline-block;flex:none;box-shadow:0 0 0 4px var(--green-glow)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ HEADER ============ */
.site-head{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:.9rem clamp(1rem,4vw,2.4rem);
  background:color-mix(in srgb,var(--cream) 82%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid color-mix(in srgb,var(--ink) 8%,transparent);
}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
.brand-mark{display:flex;gap:3px}
.brand-mark .dot{width:9px;height:9px;border-radius:50%}
.brand-mark .d1{background:var(--n1)}.brand-mark .d2{background:var(--n4)}.brand-mark .d3{background:var(--green)}
.brand-name{font-family:"Rubik",sans-serif;font-weight:800;font-size:1.05rem;letter-spacing:-.02em}
.head-kicker{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint)}

/* ============ HERO ============ */
.hero{max-width:var(--maxw);margin:0 auto;padding:clamp(2.6rem,7vw,5rem) clamp(1.2rem,5vw,2.4rem) 1rem;text-align:start}
.hero-title{
  font-family:"Rubik",sans-serif;font-weight:900;
  font-size:clamp(2.4rem,7vw,4.6rem);line-height:1.02;letter-spacing:-.035em;
  margin:.7rem 0 1rem;
}
.hero-title em{font-style:normal;color:var(--green-deep)}
.hero-sub{max-width:44ch;font-size:clamp(1rem,2.2vw,1.18rem);color:var(--ink-soft);font-weight:400}

/* ============ STUDIO (model + panel) ============ */
.studio{
  max-width:1340px;margin:1.5rem auto 0;
  padding:0 clamp(.8rem,3vw,2.4rem);
}
.stage{position:relative}
model-viewer{
  width:100%;block-size:clamp(460px,76vh,780px);
  background:
    radial-gradient(95% 85% at 50% 26%, #f4f5f7 0%, #e8e9ee 52%, #d7d9e0 100%);
  border:1px solid color-mix(in srgb,var(--ink) 12%,transparent);
  border-radius:var(--radius);
  box-shadow:0 30px 66px -34px rgba(30,45,32,.4), inset 0 -46px 90px -64px rgba(120,100,60,.28);
  --poster-color:transparent;
}
.stage-hint{
  position:absolute;inset-inline-start:1.2rem;inset-block-end:1.1rem;
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.12em;
  color:var(--ink-faint);display:flex;align-items:center;gap:.5em;pointer-events:none;
}
.drag-ico{font-size:1rem}

/* ===== hotspots: pulsing pins for discovery; ALL hide when one is active ===== */
.hotspot{
  position:relative;--c:var(--green);cursor:pointer;width:22px;height:22px;
  background:transparent;border:0;padding:0;-webkit-appearance:none;appearance:none;
}
.hotspot:focus{outline:none}
.hotspot:focus-visible .hs-pin{box-shadow:0 0 0 3px color-mix(in srgb,var(--c) 55%,transparent)}
.hs-pin{
  display:block;width:22px;height:22px;border-radius:50%;
  border:2.5px solid #fff;background:var(--c);
  box-shadow:0 3px 12px rgba(0,0,0,.55);position:relative;
  transition:transform .2s ease,opacity .3s ease;
}
.hs-pin::before{
  content:attr(data-num);position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:"IBM Plex Mono",monospace;font-size:.6rem;font-weight:600;
}
.hs-pin::after{
  content:"";position:absolute;inset:-5px;border-radius:50%;
  border:2px solid var(--c);animation:pulse 1.9s ease-out infinite;
}
.hotspot:hover .hs-pin{transform:scale(1.18)}
@keyframes pulse{0%{transform:scale(.7);opacity:.85}100%{transform:scale(1.75);opacity:0}}
/* when a feature is active, every dot disappears — the leader line marks the spot */
.stage.has-active .hs-pin{opacity:0;pointer-events:none}
.stage.has-active .hs-pin::after{animation:none}

/* ===== leader line (SVG overlay) — panel → the specific area ===== */
.leader-svg{
  position:absolute;inset:0;width:100%;height:100%;overflow:visible;
  pointer-events:none;z-index:5;opacity:0;transition:opacity .3s ease;
}
.stage.has-active .leader-svg{opacity:1}
.leader-line{stroke:var(--c,var(--green));stroke-width:1.5;stroke-linecap:round}
.leader-dot{fill:var(--c,var(--green));stroke:#fff;stroke-width:1.5}

/* ===== info text (fixed top-right, clean dark text — no box) ===== */
.info-panel{
  position:absolute;top:1.3rem;right:1.4rem;z-index:6;
  width:min(300px,46%);--c:var(--green);
  max-height:calc(100% - 2.6rem);overflow-y:auto;   /* long marketing copy scrolls inside the panel */
  color:var(--ink);text-align:start;
  /* soft frosted scrim — keeps it clean but always readable over the model */
  background:color-mix(in srgb, var(--cream) 60%, transparent);
  -webkit-backdrop-filter:blur(11px) saturate(1.08);
  backdrop-filter:blur(11px) saturate(1.08);
  border:1px solid color-mix(in srgb,#fff 45%,transparent);
  border-radius:16px 20px 16px 20px;
  padding:.85rem 1.05rem .95rem;
  box-shadow:0 10px 28px -18px rgba(30,45,32,.4);
  opacity:0;transform:translateY(-8px);pointer-events:none;
  transition:opacity .35s ease,transform .35s ease;
}
.stage.has-active .info-panel{opacity:1;transform:none;pointer-events:auto}
.info-panel .ip-head{margin-bottom:.3rem}
.info-panel .ip-num{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:600;letter-spacing:.14em;color:var(--c);
}
.info-panel .ip-num::before{content:"";display:inline-block;width:.5em;height:.5em;border-radius:50%;background:var(--c);margin-inline-end:.55em;vertical-align:.06em}
.info-panel .ip-title{font-family:"Rubik",sans-serif;font-weight:800;font-size:1.4rem;color:var(--ink);letter-spacing:-.025em;margin:0;line-height:1.1}
.info-panel .ip-desc{margin:.45rem 0 0;font-size:.95rem;line-height:1.6;color:var(--ink-soft)}
.info-panel .ip-desc-short{display:none}   /* full text on desktop; condensed text swaps in on mobile */

/* voice-guidance mini player — colored 1·2·3 like the console buttons */
.info-panel .ip-audio{margin-top:.75rem}
.info-panel .ip-audio-lbl{display:block;font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.1em;color:var(--ink-faint);margin-bottom:.4rem}
.info-panel .ip-audio-row{display:flex;gap:.5rem}
.info-panel .ip-audio-btn{
  position:relative;width:2.35rem;height:2.35rem;border-radius:50%;cursor:pointer;
  border:0;background:var(--ac);display:grid;place-items:center;
  box-shadow:0 3px 9px -3px color-mix(in srgb,var(--ac) 70%,transparent);
  transition:transform .18s ease,box-shadow .18s ease;
}
.info-panel .ip-audio-btn:hover{transform:translateY(-1px) scale(1.04)}
.info-panel .ip-audio-num{font-family:"Rubik",sans-serif;font-weight:800;font-size:1rem;color:#fff;line-height:1}
.info-panel .ip-audio-ico{position:absolute;inset:0;border-radius:50%;pointer-events:none}
/* play triangle appears on the ring while playing; number hides */
.info-panel .ip-audio-btn.playing{box-shadow:0 0 0 3px color-mix(in srgb,var(--ac) 40%,transparent),0 3px 9px -3px var(--ac)}
.info-panel .ip-audio-btn.playing .ip-audio-num{opacity:0}
.info-panel .ip-audio-btn.playing .ip-audio-ico::before{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:.55rem;height:.7rem;background:#fff;
  clip-path:polygon(15% 12%,15% 88%,26% 88%,26% 12%,74% 12%,74% 88%,85% 88%,85% 12%);  /* pause bars */
}
/* playable mini-keyboard — colored keys, real press feel */
.info-panel .mini-kbd{margin-top:.8rem}
.info-panel .mk-top{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.45rem}
.info-panel .mk-lbl{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.1em;color:var(--ink-faint)}
.info-panel .mk-demo{
  font-family:"Rubik",sans-serif;font-weight:700;font-size:.74rem;color:#fff;cursor:pointer;
  background:var(--green);border:0;border-radius:99px;padding:.28rem .7rem;
  display:inline-flex;align-items:center;gap:.35em;flex:none;
  box-shadow:0 3px 9px -3px var(--green);transition:transform .15s,background .15s,box-shadow .15s;
}
.info-panel .mk-demo:hover{transform:translateY(-1px)}
.info-panel .mk-demo .mk-demo-ico{font-size:.7em}
.info-panel .mk-demo.playing{background:var(--green-deep);box-shadow:0 0 0 3px var(--green-glow)}
.info-panel .mk-demo.playing .mk-demo-ico{animation:pulse 1.2s ease-out infinite}
.info-panel .mk-board{position:relative;height:4.4rem;direction:ltr;user-select:none;-webkit-user-select:none;touch-action:none}
.info-panel .mk-whites{display:flex;gap:2px;height:100%}
.info-panel .mk-key{border:0;cursor:pointer;padding:0;touch-action:none;-webkit-tap-highlight-color:transparent}
.info-panel .mk-white{
  flex:1;background:linear-gradient(#fff,#f3f0ea);border-radius:0 0 5px 5px;
  box-shadow:inset 0 -3px 0 rgba(0,0,0,.07),0 2px 3px rgba(30,45,32,.16);
  display:flex;align-items:flex-end;justify-content:center;transition:transform .05s ease,box-shadow .05s ease;
}
.info-panel .mk-white .mk-cap{display:block;width:62%;height:.85rem;margin-bottom:.4rem;border-radius:99px;background:var(--kc);box-shadow:0 1px 2px rgba(0,0,0,.2)}
.info-panel .mk-white.pressed{transform:translateY(2px);box-shadow:inset 0 3px 6px rgba(0,0,0,.18),0 1px 1px rgba(30,45,32,.14)}
.info-panel .mk-white.pressed .mk-cap{filter:brightness(1.18) saturate(1.15);box-shadow:0 0 8px var(--kc)}
.info-panel .mk-black{
  position:absolute;top:0;width:9%;height:60%;border-radius:0 0 4px 4px;
  background:linear-gradient(#3a3f39,#181c17);box-shadow:0 3px 4px rgba(0,0,0,.4);
  transition:transform .05s ease,box-shadow .05s ease;z-index:2;
}
.info-panel .mk-black.pressed{transform:translateY(2px) scaleY(.97);box-shadow:0 1px 2px rgba(0,0,0,.5)}
/* memorial-mode toggle (point 06) */
.info-panel .mem-toggle{
  margin-top:.8rem;width:100%;cursor:pointer;
  font-family:"Rubik",sans-serif;font-weight:700;font-size:.85rem;
  color:var(--ink);background:color-mix(in srgb,var(--c) 16%,transparent);
  border:1.5px solid color-mix(in srgb,var(--c) 55%,transparent);border-radius:12px;
  padding:.5rem .7rem;transition:background .2s,color .2s,transform .15s;
}
.info-panel .mem-toggle:hover{transform:translateY(-1px)}
.info-panel .mem-toggle.on{background:var(--c);color:#fff;border-color:var(--c)}
.info-panel .ip-nav{
  display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  margin-top:.8rem;padding-top:.6rem;
  border-top:1px solid color-mix(in srgb,var(--ink) 13%,transparent);
}
.info-panel .ip-nav-btn{
  font-family:"Rubik",sans-serif;font-weight:700;font-size:.82rem;
  color:var(--green-deep);background:none;border:0;cursor:pointer;padding:.15rem .1rem;
  display:inline-flex;align-items:center;gap:.35em;transition:color .2s,transform .2s;
}
.info-panel .ip-nav-btn:hover{color:var(--green)}
.info-panel .ip-chev{font-size:1.1em;line-height:1}
.info-panel .ip-count{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.12em;color:var(--ink-faint)}
.info-panel .ip-count .ip-cur{color:var(--c);font-weight:600}

/* ============ METHOD ============ */
.method{max-width:820px;margin:clamp(3.5rem,9vw,6rem) auto 0;padding:0 clamp(1.2rem,5vw,2.4rem);text-align:center}
.method-title{font-family:"Rubik",sans-serif;font-weight:900;font-size:clamp(1.9rem,5vw,3rem);letter-spacing:-.03em;margin:.6rem 0 .7rem}
.method-sub{color:var(--ink-soft);max-width:52ch;margin:0 auto;font-size:1.05rem}
.scale-row{display:flex;justify-content:center;flex-wrap:wrap;gap:clamp(.5rem,2vw,1rem);margin-top:2rem}
.scale-pin{width:clamp(30px,7vw,44px);height:clamp(30px,7vw,44px);border-radius:50% 50% 50% 0;transform:rotate(45deg);box-shadow:0 8px 20px -8px rgba(20,40,28,.5)}

/* ============ CTA ============ */
.cta{max-width:var(--maxw);margin:clamp(3.5rem,9vw,6rem) auto 0;padding:clamp(2.4rem,6vw,4rem) clamp(1.2rem,5vw,2.4rem);text-align:center;
  background:var(--forest);border-radius:var(--radius);}
.cta-title{font-family:"Rubik",sans-serif;font-weight:800;font-size:clamp(1.6rem,4vw,2.4rem);color:#fff;letter-spacing:-.02em;margin-bottom:1.4rem}
.cta-btn{
  display:inline-block;font-family:"Rubik",sans-serif;font-weight:700;font-size:1.05rem;
  color:#fff;background:var(--green);text-decoration:none;
  padding:.85rem 2.2rem;border-radius:var(--radius-sm);
  box-shadow:0 12px 30px -12px var(--green);transition:transform .2s,background .2s;
}
.cta-btn:hover{background:var(--green-deep);transform:translateY(-2px)}

/* ============ FOOTER ============ */
.site-foot{
  max-width:var(--maxw);margin:2.5rem auto;padding:1.4rem clamp(1.2rem,5vw,2.4rem) 0;
  border-top:1px solid color-mix(in srgb,var(--ink) 10%,transparent);
  display:flex;justify-content:space-between;align-items:center;
  font-size:.86rem;color:var(--ink-faint);
}
.foot-num{font-family:"IBM Plex Mono",monospace;letter-spacing:.1em}

/* ============ RESPONSIVE ============ */
@media (max-width:800px) and (min-width:641px){
  model-viewer{block-size:clamp(420px,66vh,580px)}
  .info-panel{top:1rem;right:1rem;width:min(62%,230px)}
  .info-panel .ip-title{font-size:1.15rem}
  .info-panel .ip-desc{font-size:.86rem}
}

/* ---- phones: text becomes a bottom sheet so it never covers the product ---- */
@media (max-width:640px){
  model-viewer{block-size:min(74vh,560px)}
  /* swap full text → condensed one-liner */
  .info-panel .ip-desc-full{display:none}
  .info-panel .ip-desc-short{display:block;font-size:.9rem}
  /* the leader line makes no sense once the text sits at the bottom */
  .stage.has-active .leader-svg{opacity:0}
  .stage.has-active .stage-hint{opacity:0}
  /* ...so keep the ACTIVE numbered dot on the model — it anchors what the sheet explains */
  .stage.has-active .hotspot.is-active .hs-pin{opacity:1}
  .stage.has-active .hotspot.is-active .hs-pin::after{animation:none}   /* steady, not pulsing */

  .info-panel{
    top:auto;bottom:0;right:0;left:0;width:100%;
    max-height:62vh;overflow-y:auto;
    border-radius:20px 20px 0 0;
    padding:.9rem 1.15rem 1.15rem;
    transform:translateY(105%);          /* slides up from the bottom edge */
    box-shadow:0 -12px 30px -16px rgba(30,45,32,.45);
    background:color-mix(in srgb, var(--cream) 82%, transparent);
    -webkit-backdrop-filter:blur(14px) saturate(1.1);
    backdrop-filter:blur(14px) saturate(1.1);
    border:0;border-top:1px solid color-mix(in srgb,#fff 55%,transparent);
  }
  .stage.has-active .info-panel{transform:translateY(0)}
  /* little grab-handle to read as a sheet */
  .info-panel::before{
    content:"";position:absolute;top:.5rem;left:50%;transform:translateX(-50%);
    width:2.4rem;height:.28rem;border-radius:99px;background:color-mix(in srgb,var(--ink) 22%,transparent);
  }
  .info-panel .ip-head{margin-top:.35rem}
  .info-panel .ip-title{font-size:1.25rem}
  .info-panel .ip-nav{margin-top:.7rem;padding-top:.55rem}
  .info-panel .ip-audio-btn{width:2.6rem;height:2.6rem}   /* comfortable tap targets */
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hs-pin::after{animation:none}
  html{scroll-behavior:auto}
}