/* ==================================================================
   VeriPure Labs — COA registry
   Tokens first, components second. Every colour comes from a token
   so all three theme states (light / dark / explicit stamp) resolve
   as a complete set.
   ================================================================== */

:root {
  /* Neutrals, biased cool-green toward the accent */
  --paper:        #F1F4F2;
  --surface:      #FDFEFD;
  --surface-2:    #E9EEEB;
  --surface-sunk: #E3E9E6;

  --ink:          #101A17;
  --ink-2:        #4B5B56;
  --ink-3:        #788882;

  --rule:         #D7DFDB;
  --rule-strong:  #BDC8C3;

  /* One accent, carrying the trace and every control */
  --signal:       #0A6A57;
  --signal-ink:   #FFFFFF;
  --signal-hover: #085646;
  --signal-soft:  rgba(10, 106, 87, 0.09);
  --signal-line:  rgba(10, 106, 87, 0.30);

  /* Reserved strictly for "not found" */
  --alert:        #A33520;
  --alert-soft:   rgba(163, 53, 32, 0.08);

  --grid-line:    rgba(16, 26, 23, 0.055);

  /* Masthead: the inked utility strip is its own small palette, so the
     header reads as a separate tier from the page in both themes */
  --strip-bg:     #101A17;
  --strip-ink:    #C9D5D0;
  --strip-dim:    #7F8F89;
  --strip-rule:   rgba(255, 255, 255, 0.11);
  /* The accent is lifted here: the page-level viridian is too dark to read
     at 10px on the inked strip */
  --strip-signal: #55C2A2;
  --header-shadow: 0 10px 26px -20px rgba(16, 26, 23, 0.55);

  /* Type */
  --display: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --body:    "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  /* Metrics */
  --page:    1180px;
  --gutter:  clamp(20px, 5vw, 56px);
  --band-py: clamp(52px, 7vw, 92px);
  --r:       3px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:        #0B100F;
    --surface:      #111917;
    --surface-2:    #17211E;
    --surface-sunk: #0E1514;

    --ink:          #E8EEEB;
    --ink-2:        #9CACA6;
    --ink-3:        #74847E;

    --rule:         #222E2A;
    --rule-strong:  #313E39;

    --signal:       #45B394;
    --signal-ink:   #05130F;
    --signal-hover: #62C6AA;
    --signal-soft:  rgba(69, 179, 148, 0.12);
    --signal-line:  rgba(69, 179, 148, 0.34);

    --alert:        #E5795F;
    --alert-soft:   rgba(229, 121, 95, 0.10);

    --grid-line:    rgba(232, 238, 235, 0.05);

    /* Inverted the other way: the strip sits *below* the page ground */
    --strip-bg:     #050908;
    --strip-ink:    #A3B3AD;
    --strip-dim:    #6C7C76;
    --strip-rule:   rgba(255, 255, 255, 0.07);
    --strip-signal: #45B394;
    --header-shadow: 0 10px 26px -20px rgba(0, 0, 0, 0.9);
  }
}

:root[data-theme="dark"] {
  --paper:        #0B100F;
  --surface:      #111917;
  --surface-2:    #17211E;
  --surface-sunk: #0E1514;

  --ink:          #E8EEEB;
  --ink-2:        #9CACA6;
  --ink-3:        #74847E;

  --rule:         #222E2A;
  --rule-strong:  #313E39;

  --signal:       #45B394;
  --signal-ink:   #05130F;
  --signal-hover: #62C6AA;
  --signal-soft:  rgba(69, 179, 148, 0.12);
  --signal-line:  rgba(69, 179, 148, 0.34);

  --alert:        #E5795F;
  --alert-soft:   rgba(229, 121, 95, 0.10);

  --grid-line:    rgba(232, 238, 235, 0.05);

  --strip-bg:     #050908;
  --strip-ink:    #A3B3AD;
  --strip-dim:    #6C7C76;
  --strip-rule:   rgba(255, 255, 255, 0.07);
  --strip-signal: #45B394;
  --header-shadow: 0 10px 26px -20px rgba(0, 0, 0, 0.9);
}

/* ------------------------------------------------------------------
   Base
   ------------------------------------------------------------------ */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.021em;
  line-height: 1.08;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 1px;
}

/* ------------------------------------------------------------------
   Shared primitives
   ------------------------------------------------------------------ */

.wrap {
  width: 100%;
  max-width: var(--page);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.band { border-bottom: 1px solid var(--rule); }
.band-inner { padding-block: var(--band-py); }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}

.eyebrow-signal { color: var(--signal); }

.lede {
  font-size: 16.5px;
  color: var(--ink-2);
  max-width: 56ch;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------
   Header
   ------------------------------------------------------------------ */

.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--surface);
  border-bottom: 1px solid var(--rule-strong);
}

.masthead.is-stuck { box-shadow: var(--header-shadow); }

/* --- Tier 1: utility strip -------------------------------------- */

.utility {
  background: var(--strip-bg);
  color: var(--strip-ink);
  height: 32px;
  overflow: hidden;
  transition: height 0.26s ease, opacity 0.2s ease;
}

.masthead.is-stuck .utility { height: 0; opacity: 0; }

.utility-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 32px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.utility-side { display: flex; align-items: center; gap: 12px; min-width: 0; }
.utility-side > span { overflow: hidden; text-overflow: ellipsis; }
.utility-dim { color: var(--strip-dim); }

.utility-sep {
  width: 1px;
  height: 11px;
  background: var(--strip-rule);
  flex: none;
}

.utility-live { display: flex; align-items: center; gap: 7px; color: var(--strip-signal); }

.utility-live .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--strip-signal);
  flex: none;
  animation: pulse 2.6s ease-in-out infinite;
}

.utility-live .dot.is-off {
  background: var(--strip-dim);
  animation: none;
}

.utility-live.is-off { color: var(--strip-dim); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

@media (max-width: 860px) {
  .utility-drop { display: none; }
}

@media (max-width: 560px) {
  .utility-side:first-child .utility-dim,
  .utility-side:first-child .utility-sep { display: none; }
}

/* --- Tier 2: main bar -------------------------------------------- */

.bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  transition: height 0.26s ease;
}

.masthead.is-stuck .bar-inner { height: 60px; }

.wordmark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}

.wordmark-plate {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  color: var(--signal);
  background: var(--surface-2);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  transition: border-color 0.18s, background 0.18s;
}

.wordmark:hover .wordmark-plate {
  border-color: var(--signal-line);
  background: var(--signal-soft);
}

.wordmark-plate svg { display: block; }

.wordmark-lines { display: grid; gap: 2px; min-width: 0; }

.wordmark-text {
  font-family: var(--display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wordmark-sub {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.bar-right { display: flex; align-items: center; gap: 20px; }

.bar-div {
  width: 1px;
  height: 24px;
  background: var(--rule);
  flex: none;
}

.nav { display: flex; align-items: center; gap: 24px; }

.nav a {
  position: relative;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.15s;
}

/* Baseline that draws in from the left, like a detector trace */
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}

.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }

.nav a[aria-current="true"] { color: var(--signal); }
.nav a[aria-current="true"]::after { transform: scaleX(1); }

/* Mobile disclosure */

.nav-toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  width: 38px;
  height: 38px;
  cursor: pointer;
  padding: 0;
  place-items: center;
  gap: 4px;
  align-content: center;
  justify-items: center;
}

.nav-toggle span {
  display: block;
  width: 15px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-2.5px) rotate(-45deg); }

@media (max-width: 820px) {
  .bar-right { gap: 12px; }
  .nav-toggle { display: grid; }
  .bar-div { display: none; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--rule-strong);
    box-shadow: var(--header-shadow);
    padding: 6px var(--gutter) 14px;
  }

  .nav.is-open { display: flex; }

  .nav a { padding: 13px 0; border-bottom: 1px solid var(--rule); }
  .nav a:last-child { border-bottom: 0; }
  .nav a::after { display: none; }
}

@media (max-width: 520px) {
  .bar-cta { display: none; }
  .wordmark-text { font-size: 14px; }
}

/* Anchored sections must clear the sticky header. The hero is excluded: it
   already sits at the top of the document, and an offset there would park
   the scroll position inside the header's own collapse range. */
section[id]:not(.hero) { scroll-margin-top: 78px; }

/* ------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------ */

.hero {
  position: relative;
  background:
    linear-gradient(to bottom, var(--surface-sunk), var(--paper));
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  gap: clamp(32px, 4.5vw, 64px);
  align-items: start;
  padding-block: clamp(44px, 6vw, 76px) clamp(48px, 6vw, 80px);
}

.hero-copy { display: grid; gap: 20px; }

.hero h1 {
  font-size: clamp(33px, 5.1vw, 55px);
  max-width: 17ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--signal);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: 2px;
}

.chip {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--rule-strong);
  border-radius: 100px;
  padding: 4px 11px;
  white-space: nowrap;
}

@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------------
   Instrument panel (chromatogram + readout)
   ------------------------------------------------------------------ */

.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--r);
}

.panel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
  background: var(--surface-2);
  border-radius: var(--r) var(--r) 0 0;
}

.panel-bar span {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.panel-bar .panel-bar-live { color: var(--signal); }

.trace-holder {
  position: relative;
  padding: 8px 8px 0;
}

canvas.trace { display: block; width: 100%; height: auto; }

.readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
}

.readout div {
  padding: 11px 14px;
  border-top: 1px solid var(--rule);
}

.readout div:nth-child(-n+2) { border-top: 0; }
.readout div:nth-child(odd) { border-right: 1px solid var(--rule); }

.readout dt {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 3px;
}

.readout dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 460px) {
  .readout { grid-template-columns: 1fr; }
  .readout div:nth-child(odd) { border-right: 0; }
  .readout div:nth-child(2) { border-top: 1px solid var(--rule); }
}

/* ------------------------------------------------------------------
   Lookup instrument
   ------------------------------------------------------------------ */

.lookup { max-width: 560px; }

.lookup-body { padding: 16px; display: grid; gap: 14px; }

.segmented {
  display: inline-flex;
  padding: 2px;
  gap: 2px;
  background: var(--surface-2);
  border: 1px solid var(--rule);
  border-radius: 100px;
  width: fit-content;
  max-width: 100%;
}

.segmented button {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 7px 14px;
  border-radius: 100px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.segmented button:hover { color: var(--ink); }

.segmented button[aria-selected="true"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(16, 26, 23, 0.08);
}

.field { display: flex; gap: 8px; }

.field input {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r);
  padding: 11px 13px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input::placeholder { color: var(--ink-3); letter-spacing: 0.04em; }

.field input:focus {
  outline: 0;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-soft);
}

.btn {
  appearance: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--r);
  padding: 11px 18px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary { background: var(--signal); color: var(--signal-ink); }
.btn-primary:hover { background: var(--signal-hover); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}

.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }

/* Declared after .btn so the smaller padding actually wins */
.btn-sm {
  padding: 9px 15px;
  font-size: 10.5px;
  letter-spacing: 0.11em;
}

.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.hint { font-size: 12.5px; color: var(--ink-3); }

/* An empty search is reported at the field, where the person is already looking */
.hint.is-error { color: var(--alert); }

/* Focus is moved here programmatically after a lookup; the scroll is the cue */
#result-out:focus { outline: none; }

/* Disclosure: where is my search code */

.disclose {
  border-top: 1px solid var(--rule);
  margin: 0 -16px -16px;
  padding: 0;
}

.disclose summary {
  cursor: pointer;
  list-style: none;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.disclose summary::-webkit-details-marker { display: none; }
.disclose summary:hover { color: var(--signal); }

.disclose summary::before {
  content: "+";
  font-size: 13px;
  line-height: 1;
  color: var(--signal);
}

.disclose[open] summary::before { content: "–"; }

.disclose-body {
  padding: 0 16px 16px;
  display: grid;
  gap: 16px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

.steps-inline {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  counter-reset: s;
}

.steps-inline li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-2);
  counter-increment: s;
}

.steps-inline li::before {
  content: counter(s);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--signal);
  border: 1px solid var(--signal-line);
  border-radius: 2px;
  height: 18px;
  display: grid;
  place-items: center;
}

.steps-inline code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: var(--signal-soft);
  color: var(--signal);
  padding: 1px 5px;
  border-radius: 2px;
}

/* Anatomy of a search code */

.anatomy {
  background: var(--surface-sunk);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  padding: 14px;
}

.anatomy-code {
  display: flex;
  align-items: stretch;
  font-family: var(--mono);
  font-size: clamp(15px, 4vw, 19px);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.anatomy-part {
  display: grid;
  gap: 6px;
  text-align: center;
}

.anatomy-part b {
  font-weight: 500;
  padding: 7px 10px;
  background: var(--surface);
  border: 1px solid var(--rule-strong);
}

.anatomy-part:first-child b {
  color: var(--signal);
  border-right: 0;
  border-radius: var(--r) 0 0 var(--r);
}

/* Joined segments share one border between them */
.anatomy-part:not(:last-child) b { border-right: 0; }

.anatomy-part:last-child b {
  color: var(--ink);
  border-radius: 0 var(--r) var(--r) 0;
}

.anatomy-part i {
  font-style: normal;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.35;
}

/* ------------------------------------------------------------------
   Result
   ------------------------------------------------------------------ */

.result-band { background: var(--surface-sunk); }
.result-band .band-inner { padding-block: clamp(36px, 4.5vw, 60px); }

.result-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.cert { background: var(--surface); }

.cert-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 18px 20px;
  border-bottom: 1px solid var(--rule);
}

.cert-title { display: grid; gap: 6px; }

.cert-title h3 { font-size: clamp(21px, 3.2vw, 27px); }

.cert-title .cert-sub {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.pills { display: flex; gap: 8px; flex-wrap: wrap; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 2px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-2);
  white-space: nowrap;
}

.pill-confirmed {
  color: var(--signal);
  border-color: var(--signal-line);
  background: var(--signal-soft);
}

.pill-confirmed::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--signal);
  border-radius: 1px;
  flex: none;
}

.pill-example {
  color: var(--alert);
  border-color: color-mix(in srgb, var(--alert) 35%, transparent);
  background: var(--alert-soft);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cert-cell {
  padding: 13px 20px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  min-width: 0;
}

.cert-cell:nth-child(4n) { border-right: 0; }

.cert-cell dt {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 4px;
}

.cert-cell dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  overflow-wrap: break-word;
}

@media (max-width: 860px) {
  .cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cert-cell:nth-child(4n) { border-right: 1px solid var(--rule); }
  .cert-cell:nth-child(2n) { border-right: 0; }
}

@media (max-width: 420px) {
  .cert-grid { grid-template-columns: 1fr; }
  .cert-cell, .cert-cell:nth-child(4n) { border-right: 0; }
}

/* Purity meter + assay trace */

.assay {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: 0;
}

.assay-purity { padding: 18px 20px; border-right: 1px solid var(--rule); }

/* No reported retention time: the purity meter spans the full width */
.assay-solo { grid-template-columns: minmax(0, 1fr); }
.assay-solo .assay-purity { border-right: 0; }

.assay-figure {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.assay-figure b {
  font-size: clamp(30px, 5.5vw, 42px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.assay-figure span {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.meter {
  position: relative;
  height: 6px;
  background: var(--surface-sunk);
  border-radius: 100px;
  margin-top: 14px;
  overflow: visible;
}

.meter-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--signal);
  border-radius: 100px;
}

.meter-tick {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 1px;
  background: var(--ink-3);
}

.meter-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 7px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.assay-trace { padding: 12px 14px; display: grid; align-content: center; }

@media (max-width: 720px) {
  .assay { grid-template-columns: 1fr; }
  .assay-purity { border-right: 0; border-bottom: 1px solid var(--rule); }
}

.cert-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border-top: 1px solid var(--rule);
  background: var(--surface-2);
  border-radius: 0 0 var(--r) var(--r);
}

.cert-actions .hint { margin-left: auto; }

@media (max-width: 620px) {
  .cert-actions .hint { margin-left: 0; }
}

/* Company result list */

.hits-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 20px;
  padding: 12px 20px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--rule);
  border-radius: var(--r) var(--r) 0 0;
}

.hits-title { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.hits-title h3 { font-size: 18px; letter-spacing: -0.01em; }

.hits-count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.hits { display: grid; }

.hit {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.7fr) minmax(0, 0.9fr) auto;
  gap: 12px 24px;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
  transition: background 0.12s, box-shadow 0.12s;
}

.hit:last-child { border-bottom: 0; }

.hit:hover {
  background: var(--signal-soft);
  box-shadow: inset 3px 0 0 var(--signal);
}

.hit-main, .hit-stat { display: grid; gap: 3px; min-width: 0; }

/* Values share a line height so the labels above them line up across columns */
.hit-purity, .hit-code { line-height: 20px; }

.hit-compound {
  font-family: var(--display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.hit-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.hit-label {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.hit-purity {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.hit-code {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.hit-actions { display: flex; gap: 8px; justify-content: flex-end; }

.hit-open span { display: inline-block; transition: transform 0.15s; }
.hit:hover .hit-open span { transform: translateX(3px); }

@media (max-width: 760px) {
  .hit { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px 16px; }
  .hit-main, .hit-actions { grid-column: 1 / -1; }
  .hit-actions .btn { flex: 1; justify-content: center; }
}

/* Empty / not-found */

.notice {
  display: grid;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--alert);
  border-radius: var(--r);
  background: var(--surface);
}

.notice strong {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--alert);
}

.notice p { font-size: 13.5px; color: var(--ink-2); max-width: 62ch; }

.notice-ok { border-left-color: var(--signal); }
.notice-ok strong { color: var(--signal); }

/* ------------------------------------------------------------------
   Methods
   ------------------------------------------------------------------ */

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 30px;
}

@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.method-card { padding: 22px; display: grid; gap: 14px; align-content: start; }

.method-card h3 { font-size: 19px; }

.method-card > p { font-size: 14px; color: var(--ink-2); }

.spec {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--rule);
}

.spec-row {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
}

.spec-row dt {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 2px;
}

.spec-row dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
}

/* ------------------------------------------------------------------
   Process — genuinely sequential, so the numbers carry meaning
   ------------------------------------------------------------------ */

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  overflow: hidden;
}

.step {
  background: var(--surface);
  padding: 20px;
  display: grid;
  gap: 9px;
  align-content: start;
}

.step-n {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.step h4 { font-size: 15.5px; letter-spacing: -0.01em; }

.step p { font-size: 13.5px; color: var(--ink-2); }

@media (max-width: 880px) { .process { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 460px) { .process { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------
   Figures
   ------------------------------------------------------------------ */

.figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r);
  overflow: hidden;
  margin-top: 28px;
}

.figure { background: var(--surface); padding: 18px 20px; display: grid; gap: 5px; }

.figure b {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 30px);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
}

.figure span {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.4;
}

/* ------------------------------------------------------------------
   Submit
   ------------------------------------------------------------------ */

.submit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

@media (max-width: 800px) { .submit-grid { grid-template-columns: 1fr; } }

.addr {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  font-style: normal;
}

.contact-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--rule);
  margin-top: 4px;
}

.contact-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12.5px;
}

.contact-row span {
  font-size: 10px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.contact-row a { color: var(--signal); text-decoration: none; }
.contact-row a:hover { text-decoration: underline; }

/* ------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------ */

.foot { background: var(--surface-sunk); }

.foot-inner {
  padding-block: 34px;
  display: grid;
  gap: 22px;
}

.foot-quality {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.disclaimer {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-3);
  max-width: 88ch;
}

.foot-base {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ------------------------------------------------------------------
   Motion
   ------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}