/* ═══════════════════════════════════════════════════════════
   TIME MACHINE DIAL — Chronoscope Interface
   Extends Cosmic Scale AI design language:
   dark navy base · purple/blue accents · Space Grotesk display
   Feature prefix: tm-
   ═══════════════════════════════════════════════════════════ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

.tm-root{
  --bg:#030712; --bg2:#070B1F; --panel:#05091C;
  --ink:#F8FAFC; --ink-dim:#94A3B8; --ink-faint:#475569;
  --purple:#7C3AED; --blue:#38BDF8;
  --hairline:rgba(148,163,184,.14); --hairline-soft:rgba(148,163,184,.08);
  --heading:'Space Grotesk',sans-serif; --body:'Inter',sans-serif;
  --mono:'IBM Plex Mono',monospace;
  --ease-out:cubic-bezier(.16,1,.3,1);
  min-height:100svh; background:var(--bg); color:var(--ink);
  font-family:var(--body); line-height:1.6;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  position:relative;
}
.tm-root ::selection{background:rgba(124,58,237,.35);color:#fff}
.tm-root a:focus-visible,.tm-root button:focus-visible,.tm-root input:focus-visible,
.tm-root [tabindex]:focus-visible{outline:1px solid var(--blue);outline-offset:3px}

/* ---------- backdrop ---------- */
.tm-sky{position:fixed;inset:0;z-index:0;pointer-events:none;background:
  radial-gradient(ellipse 80% 50% at 70% -10%,rgba(56,189,248,.05),transparent 60%),
  radial-gradient(ellipse 70% 55% at 15% 110%,rgba(124,58,237,.08),transparent 60%),
  var(--bg)}

/* ---------- nav ---------- */
.tm-nav{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:1.3rem clamp(1.25rem,5vw,4rem);border-bottom:1px solid transparent;transition:background .5s,border-color .5s}
.tm-nav.scrolled{background:rgba(3,7,18,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--hairline-soft)}
.tm-brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--ink)}
.tm-brand svg{width:22px;height:22px}
.tm-brand-word{font-family:var(--heading);font-weight:500;font-size:.82rem;letter-spacing:.18em}
.tm-home{font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint);text-decoration:none;transition:color .3s}
.tm-home:hover{color:var(--ink)}
.tm-back{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--hairline-soft);border-radius:50%;color:var(--ink-dim);text-decoration:none;transition:.3s}
.tm-back:hover{border-color:rgba(56,189,248,.45);color:var(--ink)}
.tm-back svg{width:16px;height:16px}

/* ---------- page ---------- */
.tm-page{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:clamp(7rem,12vh,9rem) clamp(1.25rem,4vw,4rem) 6rem}
.tm-kicker{font-family:var(--mono);font-size:.66rem;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-faint);display:flex;align-items:center;gap:.9rem}
.tm-kicker::before{content:'';width:38px;height:1px;background:var(--purple)}
.tm-head{font-family:var(--heading);font-weight:700;font-size:clamp(2.4rem,6.5vw,5rem);line-height:.98;letter-spacing:-.03em;margin:1.4rem 0 .9rem;max-width:16ch}
.tm-head em{font-style:normal;font-weight:300;color:transparent;-webkit-text-stroke:1px rgba(148,163,184,.55)}
.tm-lede{color:var(--ink-dim);font-weight:300;font-size:clamp(1rem,1.4vw,1.12rem);max-width:54ch;line-height:1.8}

/* ---------- console ---------- */
.tm-console{margin-top:clamp(3rem,7vh,5rem);display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:start}
@media(max-width:900px){.tm-console{grid-template-columns:1fr}}

/* dial (decorative gauge) */
.tm-dial-wrap{position:relative;display:grid;place-items:center;aspect-ratio:1;width:100%;max-width:420px;margin:0 auto}
.tm-dial{width:100%;height:100%;transform:rotate(-90deg)}
.tm-dial-track{fill:none;stroke:rgba(148,163,184,.1);stroke-width:2}
.tm-dial-fill{fill:none;stroke:url(#tmGrad);stroke-width:2.5;stroke-linecap:round;transition:stroke-dashoffset .25s linear}
.tm-dial-ticks line{stroke:rgba(148,163,184,.18);stroke-width:1}
.tm-dial-knob{fill:var(--ink);filter:drop-shadow(0 0 8px rgba(56,189,248,.9));transition:cx .25s linear,cy .25s linear}
.tm-dial-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;pointer-events:none;padding:0 2rem}
.tm-dial-pct{font-family:var(--heading);font-weight:700;font-size:clamp(2rem,7vw,2.8rem);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.tm-dial-pct small{font-size:.42em;color:var(--ink-dim);font-family:var(--mono);letter-spacing:.1em}
.tm-dial-cap{font-family:var(--mono);font-size:.58rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-faint);margin-top:.4rem}

/* control panel */
.tm-panel{background:var(--panel);border:1px solid var(--hairline-soft);padding:clamp(1.4rem,3vw,2rem);border-radius:4px}
.tm-readout-era{font-family:var(--heading);font-weight:600;font-size:clamp(1.6rem,3.4vw,2.4rem);letter-spacing:-.01em;line-height:1.04}
.tm-readout-sub{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--purple);margin-top:.5rem}
.tm-readout-time{font-family:var(--mono);font-size:.82rem;color:var(--blue);margin-top:1rem;letter-spacing:.06em}
.tm-readout-time b{color:var(--ink);font-weight:500}

.tm-desc{color:var(--ink-dim);font-weight:300;font-size:.98rem;line-height:1.85;margin-top:1.3rem;max-width:60ch}

/* stat row */
.tm-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin-top:1.6rem;background:var(--hairline-soft);border:1px solid var(--hairline-soft)}
.tm-stat{background:var(--panel);padding:1rem 1.1rem}
.tm-stat .lab{font-family:var(--mono);font-size:.56rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint)}
.tm-stat .val{font-family:var(--heading);font-weight:600;font-size:1.05rem;margin-top:.45rem;color:var(--ink)}
.tm-stat .val.b{color:var(--blue)}
@media(max-width:380px){.tm-stats{grid-template-columns:1fr}}

.tm-fact{margin-top:1.4rem;border-left:2px solid var(--purple);padding:.2rem 0 .2rem 1rem;color:var(--ink-dim);font-weight:300;font-size:.9rem;line-height:1.7}
.tm-fact b{color:var(--ink);font-weight:500}

/* ---------- slider control ---------- */
.tm-slider-row{margin-top:2rem}
.tm-slider-label{font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:.9rem;display:flex;justify-content:space-between}
.tm-range{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--purple),var(--blue));outline:none;cursor:pointer}
.tm-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;border-radius:50%;
  background:var(--ink);border:3px solid var(--bg);box-shadow:0 0 0 1px var(--blue),0 0 14px rgba(56,189,248,.6);cursor:grab;transition:transform .2s var(--ease-out)}
.tm-range::-webkit-slider-thumb:active{transform:scale(1.15);cursor:grabbing}
.tm-range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--ink);border:3px solid var(--bg);box-shadow:0 0 0 1px var(--blue),0 0 14px rgba(56,189,248,.6);cursor:grab}
.tm-ticks{display:flex;justify-content:space-between;margin-top:.7rem}
.tm-tick{font-family:var(--mono);font-size:.52rem;letter-spacing:.05em;color:var(--ink-faint);text-align:center;flex:1;cursor:pointer;transition:color .3s}
.tm-tick:hover,.tm-tick.active{color:var(--blue)}

/* era chips */
.tm-chips{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.6rem}
.tm-chip{font-family:var(--mono);font-size:.66rem;letter-spacing:.08em;color:var(--ink-dim);
  background:none;border:1px solid var(--hairline-soft);padding:.6rem 1rem;cursor:pointer;border-radius:2px;transition:.3s var(--ease-out)}
.tm-chip:hover{color:var(--ink);border-color:rgba(56,189,248,.45)}
.tm-chip.active{color:var(--ink);border-color:rgba(124,58,237,.6);background:rgba(124,58,237,.1)}

/* hint */
.tm-hint{margin-top:2.4rem;font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);display:flex;align-items:center;gap:.7rem}
.tm-hint::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 8px var(--blue);animation:tmPulse 2.4s ease-in-out infinite}
@keyframes tmPulse{0%,100%{opacity:.4}50%{opacity:1}}

/* ---------- footer ---------- */
.tm-foot{border-top:1px solid var(--hairline-soft);margin-top:clamp(4rem,9vh,7rem);padding:2.4rem 0 0}
.tm-foot-in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.tm-foot-brand{font-family:var(--mono);font-size:.62rem;letter-spacing:.22em;color:var(--ink-faint)}
.tm-foot-links{display:flex;gap:2rem;list-style:none}
.tm-foot-links a{font-family:var(--mono);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint);text-decoration:none;transition:color .3s}
.tm-foot-links a:hover{color:var(--ink)}

/* ---------- mobile responsiveness overrides (appended) ---------- */
@media(max-width:640px){
  .tm-foot-in{flex-direction:column;align-items:flex-start}
}

/* phones: 375/390px — stacked, tappable, no overflow */
@media(max-width:640px){
  .tm-chip{
    min-height:44px;display:inline-flex;align-items:center;justify-content:center;
    flex:1 1 auto;padding:.55rem 1rem
  }
  .tm-foot-links{gap:1.25rem .9rem}
  .tm-foot-links a{
    min-height:44px;display:inline-flex;align-items:center;
    padding:.5rem 0
  }
  .tm-tick{
    min-height:44px;display:flex;align-items:center;justify-content:center;
    padding:.4rem 0
  }
  .tm-head{font-size:clamp(2rem,9vw,2.6rem)}
  .tm-hint{flex-wrap:wrap}
  .tm-dial-wrap{max-width:340px}
}

/* very small phones */
@media(max-width:400px){
  .tm-readout-era{font-size:1.5rem}
  .tm-foot-links{flex-direction:column;align-items:flex-start;gap:.25rem}
  .tm-foot-links a{width:100%}
  .tm-chip{width:100%;flex:1 1 100%}
  .tm-dial-wrap{max-width:300px}
}
@media(prefers-reduced-motion:reduce){
  .tm-dial-fill{transition:none}
  .tm-dial-knob{transition:none}
  .tm-range::-webkit-slider-thumb{transition:none}
  .tm-hint::before{animation:none}
  .reveal{opacity:1!important;transform:none!important}
}