/* ===========================================================================
   Horizon — landing page styles.
   Design tokens + page layout + the live V2 "progress-ring hero" menu-bar mock.
   Recreated pixel-for-pixel from the Claude Design handoff (vanilla, no React).
   =========================================================================== */

:root{
  --sans: -apple-system, "SF Pro Text", "SF Pro Display", system-ui, "Segoe UI", sans-serif;
  --ink:        #18181a;
  --ink-2:      #5b5b61;
  --ink-3:      #8e8e95;
  --ink-4:      #b6b6bc;
  --ac:         #2f7a5a;
  --ac-soft:    rgba(47,122,90,0.12);
  --dusk:       #d98b55;
  --hair:       rgba(0,0,0,0.07);
  --hair-2:     rgba(0,0,0,0.10);
  --rowhover:   rgba(0,0,0,0.055);
}

*{ box-sizing:border-box; }
html,body{ margin:0; }
body{
  font-family:var(--sans); -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  color:var(--ink); min-height:100vh;
  background:
    radial-gradient(120% 70% at 50% -8%, #e7eeec 0%, rgba(231,238,236,0) 46%),
    radial-gradient(90% 60% at 88% 6%, #f0e7da 0%, rgba(240,231,218,0) 50%),
    linear-gradient(180deg, #f5f4f0 0%, #efeee9 60%, #e9e8e2 100%);
}
button{ font-family:inherit; }

.page{
  min-height:100vh; max-width:760px; margin:0 auto;
  padding:48px 28px 40px;
  display:flex; flex-direction:column; align-items:center; text-align:center;
}

/* brand lockup */
.brand{ display:flex; align-items:center; gap:9px; color:var(--ink); margin-bottom:auto; }
.brand-mark{ display:flex; color:var(--ink); }
.brand-name{ font-size:17px; font-weight:600; letter-spacing:-0.01em; }

/* hero text */
.headline{
  margin:44px 0 0; font-weight:600; letter-spacing:-0.035em; line-height:1.04;
  font-size:clamp(38px, 6.4vw, 66px); max-width:15ch; text-wrap:balance; color:var(--ink);
}
.sub{
  margin:20px 0 0; font-size:clamp(15px,1.7vw,18px); line-height:1.6; color:var(--ink-2);
  max-width:52ch; text-wrap:pretty;
}

/* CTA */
.cta-wrap{ margin-top:30px; display:flex; flex-direction:column; align-items:center; gap:11px; }
.cta{
  display:inline-flex; align-items:center; gap:9px; text-decoration:none;
  background:var(--ink); color:#fff; font-size:16px; font-weight:550; letter-spacing:.005em;
  padding:14px 26px; border-radius:999px;
  box-shadow:0 6px 18px rgba(20,24,28,0.22), 0 1px 2px rgba(0,0,0,0.18);
  transition:transform .16s cubic-bezier(0.22,1,0.36,1), background .16s ease, box-shadow .16s ease;
}
.cta:hover{ background:#000; transform:translateY(-2px); box-shadow:0 12px 28px rgba(20,24,28,0.28), 0 2px 4px rgba(0,0,0,0.2); }
.cta:active{ transform:translateY(0) scale(0.98); }
.cta:focus-visible{ outline:2px solid var(--ac); outline-offset:3px; }
.cta-note{ font-size:13px; color:var(--ink-3); letter-spacing:.01em; }
.help-link{ font-family:inherit; font-size:13px; color:var(--ink-3); letter-spacing:.01em;
  background:none; border:0; cursor:pointer; padding:1px 0;
  border-bottom:1px solid rgba(0,0,0,0.18); transition:color .14s, border-color .14s; }
.help-link:hover{ color:var(--ac); border-color:var(--ac); }
.help-link:focus-visible{ outline:2px solid var(--ac); outline-offset:3px; border-radius:2px; }

/* live / interactive hint */
.live-hint{
  margin:54px 0 14px; display:inline-flex; align-items:center; gap:8px;
  font-size:12.5px; font-weight:550; letter-spacing:.01em; color:var(--ink-2);
  background:rgba(255,255,255,0.6); border:0.5px solid var(--hair-2);
  padding:6px 13px 6px 11px; border-radius:999px; box-shadow:0 1px 2px rgba(0,0,0,0.04); white-space:nowrap;
}
.live-dot{ width:7px; height:7px; border-radius:50%; background:var(--ac); position:relative; }
.live-dot::after{ content:""; position:absolute; inset:-3px; border-radius:50%;
  border:1.5px solid var(--ac); opacity:0; animation:liveping 2s cubic-bezier(0.22,1,0.36,1) infinite; }
@keyframes liveping{ 0%{ transform:scale(0.6); opacity:.6; } 70%{ transform:scale(1.8); opacity:0; } 100%{ opacity:0; } }

/* device showcase */
.device{
  position:relative; width:388px; height:552px; max-width:100%;
  margin:0 0 12px; border-radius:18px; overflow:hidden; cursor:pointer;
  box-shadow:0 40px 90px -28px rgba(20,30,38,0.45), 0 12px 30px -12px rgba(20,30,38,0.28),
             0 0 0 1px rgba(255,255,255,0.5) inset;
  transition:transform .3s cubic-bezier(0.22,1,0.36,1), box-shadow .3s cubic-bezier(0.22,1,0.36,1);
}
.device:hover{ transform:translateY(-3px);
  box-shadow:0 52px 110px -28px rgba(20,30,38,0.5), 0 16px 36px -12px rgba(20,30,38,0.32),
             0 0 0 1px rgba(255,255,255,0.5) inset; }
.device::after{ content:""; position:absolute; inset:0; border-radius:18px; pointer-events:none;
  box-shadow:0 0 0 1px rgba(0,0,0,0.05) inset; }

/* footer */
.footer{ margin-top:auto; padding-top:44px; font-size:13.5px; color:var(--ink-3); }
.footer a{ color:var(--ink-2); text-decoration:none; font-weight:550; border-bottom:1px solid rgba(0,0,0,0.18); padding-bottom:1px; transition:color .14s, border-color .14s; }
.footer a:hover{ color:var(--ac); border-color:var(--ac); }

/* ===========================================================================
   Shared menu-bar primitives (only the subset the V2 popover uses)
   =========================================================================== */
.hz-desktop button,
.device button{ font-family:inherit; cursor:pointer; border:0; background:none; color:inherit; padding:0; }

.hz-desktop{
  position:relative; width:100%; height:100%; overflow:hidden;
  background:
    radial-gradient(120% 85% at 78% 4%,  #d7e6e9 0%, rgba(215,230,233,0) 52%),
    radial-gradient(110% 80% at 12% 26%, #ece3d6 0%, rgba(236,227,214,0) 50%),
    radial-gradient(150% 130% at 64% 108%, #a9bcc0 0%, rgba(169,188,192,0) 60%),
    linear-gradient(158deg, #dfe7e7 0%, #ccd6d6 58%, #b7c2c4 100%);
}
.hz-desktop::after{ content:""; position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(140% 100% at 50% -10%, rgba(255,255,255,0.45), rgba(255,255,255,0) 45%); }
.hz-menubar{ position:absolute; top:0; left:0; right:0; height:26px; z-index:5;
  background:rgba(255,255,255,0.16);
  backdrop-filter:blur(22px) saturate(160%); -webkit-backdrop-filter:blur(22px) saturate(160%);
  border-bottom:0.5px solid rgba(0,0,0,0.08); display:flex; align-items:center; justify-content:flex-end; }
.hz-mb-cluster{ display:flex; align-items:center; gap:13px; padding-right:14px; height:100%; color:rgba(0,0,0,0.78); }
.hz-mb-item{ display:flex; align-items:center; justify-content:center; height:100%; }
.hz-mb-app{ position:relative; padding:0 6px; height:19px; border-radius:5px; align-self:center;
  transition:background .14s ease, color .14s ease; }
.hz-mb-app.sel{ background:rgba(0,0,0,0.82); color:#fff; }
.hz-mb-time{ font-size:13px; font-weight:500; letter-spacing:.01em; color:rgba(0,0,0,0.82);
  font-variant-numeric:tabular-nums; padding-left:1px; }

.hz-popwrap{ position:absolute; top:31px; z-index:6; }
.hz-popwrap.right{ right:16px; }
.hz-pop{ background:rgba(250,250,249,0.78);
  backdrop-filter:blur(34px) saturate(180%); -webkit-backdrop-filter:blur(34px) saturate(180%);
  border:0.5px solid rgba(0,0,0,0.09); border-radius:13px;
  box-shadow:0 0 0 0.5px rgba(255,255,255,0.5) inset, 0 16px 44px rgba(20,24,28,0.26), 0 3px 10px rgba(20,24,28,0.14);
  color:var(--ink); overflow:hidden; transform-origin:top right; }

/* rows / bits */
.hz-row{ width:calc(100% - 12px); margin:0 6px; padding:7px 12px; border-radius:7px;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  font-size:13.5px; color:var(--ink); text-align:left; transition:background .12s ease, transform .06s ease; }
.hz-row:not(.static):hover{ background:var(--rowhover); }
.hz-row:not(.static):active{ transform:scale(0.985); }
.hz-row.static{ cursor:default; }
.hz-row.tall{ padding:9px 14px; font-size:13.5px; }
.hz-row-l{ color:var(--ink); }
.hz-sep{ height:0.5px; background:var(--hair); margin:5px 12px; }
.hz-sep.flush{ margin:0; }
.hz-kbd{ color:var(--ink-3); font-size:12.5px; letter-spacing:.04em; }

/* switch */
.hz-sw{ width:38px; height:23px; border-radius:999px; background:rgba(0,0,0,0.16);
  position:relative; transition:background .18s cubic-bezier(0.22,1,0.36,1); flex:none; }
.hz-sw .knob{ position:absolute; top:2px; left:2px; width:19px; height:19px; border-radius:50%;
  background:#fff; box-shadow:0 1px 3px rgba(0,0,0,0.28), 0 0 0 0.5px rgba(0,0,0,0.04);
  transition:transform .2s cubic-bezier(0.34,1.56,0.64,1); }
.hz-sw.on{ background:var(--ac); }
.hz-sw.on .knob{ transform:translateX(15px); }

/* stepper  ‹ value › */
.hz-step{ display:flex; align-items:center; gap:2px; }
.hz-step button{ width:22px; height:22px; border-radius:6px; color:var(--ink-2);
  display:flex; align-items:center; justify-content:center; transition:background .12s, color .12s; }
.hz-step button:hover{ background:var(--rowhover); color:var(--ink); }
.hz-step button:disabled{ opacity:.3; cursor:default; }
.hz-step .v{ min-width:54px; text-align:center; font-size:13px; font-weight:500; color:var(--ink); font-variant-numeric:tabular-nums; }

/* ring */
.hz-ring{ position:relative; display:grid; place-items:center; }
.hz-ring-c{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }

/* buttons */
.hz-btn{ display:inline-flex; align-items:center; justify-content:center; gap:7px; border-radius:9px;
  font-size:13.5px; font-weight:500; letter-spacing:.005em; transition:transform .07s ease, background .14s ease, box-shadow .14s ease; }
.hz-btn:active{ transform:scale(0.975); }
.hz-btn.primary{ background:var(--ink); color:#fff; padding:10px 14px; box-shadow:0 1px 2px rgba(0,0,0,0.18); }
.hz-btn.primary:hover{ background:#000; }
.hz-btn.ghost{ background:rgba(0,0,0,0.05); color:var(--ink); padding:10px 14px; }
.hz-btn.ghost:hover{ background:rgba(0,0,0,0.085); }

/* V2 · ring hero (the piece the landing page uses) */
.hz-pop.v2{ width:316px; padding:6px 6px 8px; }
.v2-hero{ display:flex; flex-direction:column; align-items:center; padding:18px 0 6px; }
.v2-time{ font-size:30px; font-weight:600; letter-spacing:-0.01em; color:var(--ink);
  font-variant-numeric:tabular-nums; line-height:1; transition:transform .3s ease; }
.v2-time.flash{ transform:scale(1.06); }
.v2-time-sub{ margin-top:4px; font-size:10px; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-4); }
.v2-cap{ margin-top:13px; font-size:13px; color:var(--ink-2); }
.v2-actions{ display:flex; flex-direction:column; gap:7px; padding:12px 10px 8px; }
.v2-settings{ margin:6px 4px 2px; background:rgba(0,0,0,0.025); border-radius:11px; overflow:hidden; border:0.5px solid var(--hair); }
.v2-foot{ padding:6px 6px 2px; }
.v2-quit{ width:100%; display:flex; align-items:center; justify-content:center; gap:8px;
  padding:9px; border-radius:9px; font-size:12.5px; color:var(--ink-2); transition:background .12s; }
.v2-quit:hover{ background:var(--rowhover); }

/* focus visibility for keyboard users inside the mock */
.hz-pop button:focus-visible{ outline:2px solid var(--ac); outline-offset:2px; }

@media (max-width:480px){
  .device{ width:100%; height:auto; aspect-ratio:388/552; }
}

/* ---------------------------------------------------------------------------
   Page-load reveal — one orchestrated, staggered entrance. Disabled entirely
   for visitors who prefer reduced motion (everything renders at full opacity).
   --------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference){
  .brand,.headline,.sub,.cta-wrap,.live-hint,.footer{
    opacity:0; animation:hz-reveal .7s cubic-bezier(0.22,1,0.36,1) forwards;
  }
  .brand{ animation-delay:.05s; }
  .headline{ animation-delay:.12s; }
  .sub{ animation-delay:.19s; }
  .cta-wrap{ animation-delay:.26s; }
  .live-hint{ animation-delay:.34s; }
  .footer{ animation-delay:.5s; }
  /* device fades opacity only, so its hover transform stays intact */
  .device{ opacity:0; animation:hz-fade .8s ease .42s forwards; }

  @keyframes hz-reveal{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:none; } }
  @keyframes hz-fade{ from{ opacity:0; } to{ opacity:1; } }
}
@media (prefers-reduced-motion: reduce){
  .live-dot::after{ animation:none; }
}

/* ---------------------------------------------------------------------------
   First-launch help dialog — built from the site's own tokens. Purely additive.
   --------------------------------------------------------------------------- */
.help-dialog{ border:none; padding:0; background:transparent; color:var(--ink);
  width:min(92vw, 440px); max-height:86vh; }
.help-dialog::backdrop{ background:rgba(20,24,28,0.34); backdrop-filter:blur(2px); -webkit-backdrop-filter:blur(2px); }
.help-card{ position:relative; text-align:left; background:#faf9f7;
  border:0.5px solid var(--hair-2); border-radius:16px;
  box-shadow:0 0 0 0.5px rgba(255,255,255,0.6) inset,
             0 30px 60px -20px rgba(20,30,38,0.45), 0 8px 20px -10px rgba(20,30,38,0.30);
  padding:24px 24px 20px; }
.help-title{ margin:0 6px 6px 0; font-size:18px; font-weight:600; letter-spacing:-0.02em; color:var(--ink); }
.help-intro{ margin:0 0 16px; font-size:13.5px; line-height:1.55; color:var(--ink-2); max-width:38ch; }
.help-steps{ margin:0; padding:0; list-style:none; counter-reset:step;
  display:flex; flex-direction:column; gap:11px; }
.help-steps li{ position:relative; padding-left:30px; font-size:13.5px; line-height:1.5;
  color:var(--ink); counter-increment:step; }
.help-steps li::before{ content:counter(step); position:absolute; left:0; top:-1px;
  width:20px; height:20px; border-radius:50%; background:var(--ac-soft); color:var(--ac);
  font-size:11px; font-weight:650; display:flex; align-items:center; justify-content:center;
  font-variant-numeric:tabular-nums; }
.help-steps strong, .help-why strong, .help-done strong{ font-weight:600; color:var(--ink); }
.help-done{ margin:16px 0 0; font-size:13.5px; line-height:1.5; color:var(--ink); }
.help-why{ margin:14px 0 0; padding-top:14px; border-top:0.5px solid var(--hair);
  font-size:12.5px; line-height:1.5; color:var(--ink-3); }
.help-close{ position:absolute; top:12px; right:12px; width:28px; height:28px; border-radius:8px;
  display:flex; align-items:center; justify-content:center; color:var(--ink-3);
  background:none; border:0; cursor:pointer; transition:background .12s, color .12s; }
.help-close:hover{ background:var(--rowhover); color:var(--ink); }
.help-close:focus-visible{ outline:2px solid var(--ac); outline-offset:2px; }
.help-term{ margin:16px 0 0; font-size:12.5px; }
.help-term summary{ cursor:pointer; color:var(--ink-2); font-weight:550; list-style:none;
  display:inline-flex; align-items:center; gap:5px; width:max-content; }
.help-term summary::-webkit-details-marker{ display:none; }
.help-term summary::before{ content:"›"; transition:transform .15s ease; display:inline-block; }
.help-term[open] summary::before{ transform:rotate(90deg); }
.help-term summary:hover{ color:var(--ac); }
.help-term summary:focus-visible{ outline:2px solid var(--ac); outline-offset:3px; border-radius:3px; }
.help-term-note{ margin:8px 0 0; color:var(--ink-3); font-size:12px; }
.help-term code{ display:block; margin-top:8px; padding:10px 12px; border-radius:8px;
  background:rgba(0,0,0,0.05); border:0.5px solid var(--hair);
  font-family:ui-monospace, SFMono-Regular, Menlo, monospace; font-size:12px; color:var(--ink);
  white-space:pre-wrap; word-break:break-word; }

@media (prefers-reduced-motion: no-preference){
  .help-dialog[open]{ animation:help-pop .22s cubic-bezier(0.22,1,0.36,1); }
  .help-dialog[open]::backdrop{ animation:help-fade .22s ease; }
  @keyframes help-pop{ from{ opacity:0; transform:translateY(8px) scale(0.98); } to{ opacity:1; transform:none; } }
  @keyframes help-fade{ from{ opacity:0; } to{ opacity:1; } }
}