/* Peptune — peptune.app
   Coded to DESIGN.md: near-black instrument canvas, one bio-mint accent, mono
   numerals as the typographic identity. Flat surfaces, hairlines, surface steps
   for depth — NO gradients-as-decor, NO glow/beam theater (all banned).
   The signature is the CSS-drawn reconstitution syringe. */

:root {
  --ink: #0B0E12;
  --ink-raised: #151A21;
  --ink-sunk: #07090C;
  --primer: #3EE6A8;
  --primer-deep: #2BB984;
  --caution: #FFB454;
  --missed: #FF6B66;
  --text-1: #EDF2F5;
  --text-2: #93A1AD;
  --text-3: #5C6873;
  --hair: rgba(237, 242, 245, .08);
  --hair-2: rgba(237, 242, 245, .14);
  --ui: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, monospace;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ui);
  color: var(--text-1);
  background: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.tag {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--text-3);
}

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(11, 14, 18, .78);
  backdrop-filter: saturate(1.3) blur(14px);
  -webkit-backdrop-filter: saturate(1.3) blur(14px);
  border-bottom: 1px solid var(--hair);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 19px; letter-spacing: -.3px; }
.brand .glyph {
  width: 24px; height: 24px; border-radius: 7px; flex: none;
  background: var(--ink-raised); border: 1px solid var(--hair-2);
  position: relative;
}
/* glyph: a mono droplet mark drawn flat in primer */
.brand .glyph::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 3px; height: 11px; border-radius: 2px;
  background: var(--primer); transform: translate(-50%, -50%);
}
.brand .glyph::before {
  content: ""; position: absolute; left: 50%; top: 6px;
  width: 8px; height: 8px; border-radius: 50% 50% 50% 0;
  background: transparent; border: 1.5px solid var(--primer);
  transform: translateX(-50%) rotate(45deg);
}
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--text-2); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--text-1); }
.nav-links a.btn { color: #06120C; }
.nav-links a.btn:hover { color: #06120C; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--primer); color: #06120C; font-weight: 600; font-size: 15px;
  padding: 12px 22px; border-radius: 999px;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); background: #4CF0B2; }
.btn svg { width: 17px; height: 17px; fill: #06120C; }
.btn small { font-weight: 600; opacity: .7; font-size: 11px; font-family: var(--mono); letter-spacing: 1px; text-transform: uppercase; }

.cta-note { font-family: var(--mono); font-size: 12px; letter-spacing: 1.5px; color: var(--text-3); text-transform: uppercase; }

/* ---- the signature: CSS-drawn reconstitution syringe ---- */
.instrument {
  background: var(--ink-raised);
  border: 1px solid var(--hair);
  border-radius: 22px;
  padding: 30px 30px 34px;
  width: 100%;
}
.instrument .readout {
  display: flex; align-items: baseline; gap: 12px;
}
.instrument .readout .lbl {
  font-family: var(--mono); font-size: 11px; letter-spacing: 3px;
  text-transform: uppercase; color: var(--text-3);
}
.instrument .readout .num {
  font-family: var(--mono); font-weight: 600; font-size: 62px;
  line-height: 1; color: var(--primer); letter-spacing: -1px;
}
.instrument .readout .u {
  font-family: var(--mono); font-size: 18px; color: var(--text-2);
  align-self: flex-end; padding-bottom: 8px;
}

/* live input row above the syringe */
.instrument .inputs {
  display: flex; gap: 10px; margin: 22px 0 30px;
}
.instrument .field {
  flex: 1; background: var(--ink-sunk); border: 1px solid var(--hair);
  border-radius: 12px; padding: 12px 13px;
}
.instrument .field .k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--text-3);
}
.instrument .field .v {
  font-family: var(--mono); font-size: 19px; color: var(--text-1);
  margin-top: 5px; letter-spacing: -.3px;
}
.instrument .field .v em { font-style: normal; color: var(--text-3); font-size: 13px; }

/* the syringe itself, drawn horizontally in flat shapes */
.syringe { position: relative; height: 78px; margin-top: 6px; }
/* plunger thumb rest + rod (left) */
.syringe .thumb {
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 8px; height: 46px; border-radius: 3px; background: var(--hair-2);
}
.syringe .rod {
  position: absolute; left: 8px; top: 50%; transform: translateY(-50%);
  width: 64px; height: 8px; background: var(--hair-2); border-radius: 2px;
}
/* barrel */
.syringe .barrel {
  position: absolute; left: 68px; right: 44px; top: 50%; transform: translateY(-50%);
  height: 40px; background: var(--ink-sunk);
  border: 1px solid var(--hair-2); border-radius: 8px 4px 4px 8px;
  overflow: hidden;
}
.syringe .barrel .liquid {
  position: absolute; left: 0; top: 0; bottom: 0; width: 33%;
  background: var(--primer); opacity: .9;
}
/* plunger seal at the liquid boundary */
.syringe .barrel .seal {
  position: absolute; top: 0; bottom: 0; left: 33%;
  width: 6px; background: var(--text-2); transform: translateX(-6px);
}
/* graduation ticks over the barrel */
.syringe .barrel .ticks {
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(
    to right, transparent 0, transparent 9.09%,
    var(--hair-2) 9.09%, var(--hair-2) calc(9.09% + 1px));
}
/* needle hub + needle (right) */
.syringe .hub {
  position: absolute; right: 30px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 18px; background: var(--hair-2);
  clip-path: polygon(0 0, 100% 28%, 100% 72%, 0 100%);
}
.syringe .needle {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 30px; height: 2px; background: var(--text-3);
}
/* the draw-line marker at the fill boundary */
.syringe .marker {
  position: absolute; top: -6px; bottom: -6px;
  left: calc(68px + (100% - 68px - 44px) * 0.33);
  width: 1px; border-left: 1px dashed var(--primer);
}
.syringe .marker .flag {
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 11px; letter-spacing: 1px;
  color: var(--primer); white-space: nowrap;
}
.instrument .caption {
  margin-top: 30px; font-family: var(--mono); font-size: 11px;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-3);
  display: flex; align-items: center; gap: 8px;
}
.instrument .caption .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primer); flex: none; }

/* ---- hero ---- */
.hero { padding: 74px 0 88px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; }
.hero h1 {
  font-size: clamp(42px, 6vw, 66px); line-height: 1.04;
  letter-spacing: -2.4px; font-weight: 700; margin: 20px 0 22px;
}
.hero h1 em { font-style: normal; color: var(--primer); }
.hero .lede { font-size: clamp(17px, 2vw, 20px); color: var(--text-2); max-width: 34ch; }
.hero .cta-row { display: flex; align-items: center; gap: 18px; margin-top: 34px; flex-wrap: wrap; }

/* ---- feature trio ---- */
.features { border-top: 1px solid var(--hair); padding: 92px 0; }
.features .section-head { max-width: 34ch; }
.features .section-head h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -1.4px; font-weight: 700; margin-top: 12px; }
.features .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 40px; }
.feature {
  background: var(--ink-raised); border: 1px solid var(--hair);
  border-radius: 22px; padding: 28px 26px 30px;
}
.feature .ic { width: 40px; height: 40px; margin-bottom: 20px; }
.feature .ic svg { width: 40px; height: 40px; display: block; }
.feature .n { font-family: var(--mono); font-size: 11px; letter-spacing: 1.5px; color: var(--primer); text-transform: uppercase; }
.feature h3 { font-size: 21px; font-weight: 600; letter-spacing: -.4px; margin: 12px 0 9px; }
.feature p { color: var(--text-2); font-size: 15.5px; }

/* ---- numeric band (the instrument voice, full-bleed dark) ---- */
.numband { border-top: 1px solid var(--hair); background: var(--ink-sunk); padding: 88px 0; text-align: center; }
.numband .stat { display: inline-flex; align-items: baseline; gap: 10px; }
.numband .stat .big {
  font-family: var(--mono); font-weight: 600; font-size: clamp(60px, 12vw, 104px);
  line-height: 1; color: var(--primer); letter-spacing: -3px;
}
.numband .stat .lbl { font-family: var(--mono); font-size: 16px; color: var(--text-2); }
.numband h2 { font-size: clamp(28px, 4.2vw, 44px); letter-spacing: -1.6px; font-weight: 700; margin-top: 34px; }
.numband p { color: var(--text-2); font-size: 18px; margin: 14px auto 0; max-width: 48ch; }

/* ---- closer ---- */
.closer { text-align: center; padding: 96px 0 44px; }
.closer h2 { font-size: clamp(30px, 5vw, 52px); letter-spacing: -1.6px; font-weight: 700; line-height: 1.06; }
.closer .cta-row { display: flex; justify-content: center; gap: 16px; margin-top: 32px; align-items: center; flex-wrap: wrap; }

/* ---- footer ---- */
footer { border-top: 1px solid var(--hair); margin-top: 40px; padding: 40px 0 56px; }
footer .wrap { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
footer .brand { font-size: 16px; }
footer .fcol { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
footer .meta { font-family: var(--mono); font-size: 12.5px; color: var(--text-2); display: flex; gap: 18px; flex-wrap: wrap; letter-spacing: .3px; justify-content: flex-end; }
footer .meta a:hover { color: var(--text-1); }
footer .disclaimer { font-size: 12.5px; color: var(--text-3); max-width: 46ch; text-align: right; line-height: 1.5; }

/* ---- legal / support document pages ---- */
.doc { padding: 62px 0 20px; }
.doc .wrap { max-width: 760px; }
.doc .tag { display: block; margin-bottom: 12px; }
.doc h1 { font-size: clamp(34px, 5vw, 46px); letter-spacing: -1.4px; font-weight: 700; }
.doc .updated { font-family: var(--mono); font-size: 12.5px; color: var(--text-3); margin-top: 12px; letter-spacing: .5px; }
.doc h2 { font-size: 21px; font-weight: 600; letter-spacing: -.4px; margin: 40px 0 12px; padding-top: 24px; border-top: 1px solid var(--hair); }
.doc h2:first-of-type { border-top: 0; padding-top: 8px; }
.doc p, .doc li { color: #C3CDD6; font-size: 16.5px; line-height: 1.62; margin-bottom: 14px; }
.doc ul { padding-left: 22px; margin-bottom: 14px; }
.doc li { margin-bottom: 8px; }
.doc a { color: var(--primer); text-decoration: underline; text-underline-offset: 2px; }
.doc strong { color: var(--text-1); }
.doc .callout { background: var(--ink-raised); border: 1px solid var(--hair); border-radius: 16px; padding: 20px 22px; margin: 6px 0 22px; }
.doc .callout p:last-child { margin-bottom: 0; }
.doc .callout.warn { border-color: rgba(255, 180, 84, .3); }

@media (max-width: 860px) {
  .hero { padding: 44px 0 60px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero .stage { order: 1; }
  .features .grid { grid-template-columns: 1fr; }
  .nav-links .l-hide { display: none; }
  footer .wrap { flex-direction: column; }
  footer .fcol { align-items: flex-start; }
  footer .meta { justify-content: flex-start; }
  footer .disclaimer { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

:focus-visible { outline: 2px solid var(--primer); outline-offset: 3px; border-radius: 4px; }