/* ============================================================
   MyntOptics Engineering Tools — shared design system
   ============================================================ */
:root {
  --bg: #030407;
  --bg-2: #07090f;
  --panel: #0a0e17;
  --panel-2: #0e1420;
  --border: rgba(255, 255, 255, .10);
  --border-soft: rgba(255, 255, 255, .06);
  --text: #f2f4f8;
  --muted: #9aa3b8;
  --faint: #5c6579;
  --accent: #2fb4ff;
  --accent-dim: #1a6a99;
  --accent-2: #ffb454;
  --good: #35e39c;
  --bad: #ff5f56;
  --spectrum: linear-gradient(92deg, #7b5bff 0%, #2fb4ff 28%, #35e39c 55%, #ffd23e 78%, #ff5f56 100%);
  --display: "Syne", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "Cascadia Code", Consolas, "SF Mono", monospace;
  --radius: 8px;
  --shadow: 0 16px 44px rgba(0, 0, 0, .5);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(47, 180, 255, .09), transparent 60%),
    radial-gradient(900px 460px at 8% -8%, rgba(123, 91, 255, .08), transparent 60%),
    radial-gradient(700px 400px at 50% 110%, rgba(53, 227, 156, .05), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 15px/1.55 "Manrope", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; }
code { font-family: var(--mono); font-size: .92em; color: var(--accent-2); }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 12px 26px;
  background: rgba(10, 16, 30, .85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 26px; display: block; }
.brand .suite {
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); border-left: 1px solid var(--border); padding-left: 12px;
}
.topbar nav { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.topbar nav a { color: var(--muted); font-size: 13.5px; }
.topbar nav a:hover { color: var(--text); text-decoration: none; }
.topbar nav a.cta {
  color: #06121f; background: var(--accent); padding: 7px 14px;
  border-radius: 999px; font-weight: 600;
}

/* ---------- hub (index) ---------- */
.hero { max-width: 1180px; margin: 56px auto 8px; padding: 0 26px; }
.hero h1 { font-size: clamp(28px, 4vw, 44px); margin: 0 0 12px; font-weight: 750; letter-spacing: -.02em; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p { color: var(--muted); max-width: 760px; font-size: 16.5px; margin: 0; }

.tool-grid {
  max-width: 1180px; margin: 34px auto 70px; padding: 0 26px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 18px;
}
.card {
  display: flex; flex-direction: column; gap: 10px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 22px 18px; color: var(--text);
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--accent-dim); box-shadow: var(--shadow); text-decoration: none; }
.card .icon {
  width: 42px; height: 42px; border-radius: 9px; display: grid; place-items: center;
  background: rgba(47, 180, 255, .1); border: 1px solid rgba(47, 180, 255, .25);
}
.card .icon svg { width: 24px; height: 24px; stroke: var(--accent); fill: none; stroke-width: 1.6; }
.card h3 { margin: 4px 0 0; font-size: 17.5px; font-weight: 650; }
.card p { margin: 0; color: var(--muted); font-size: 13.8px; flex: 1; }
.card .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.badge {
  font-size: 11px; letter-spacing: .04em; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 2.5px 9px;
  background: rgba(255, 255, 255, .025);
}

/* ---------- tool page layout ---------- */
.tool-head { max-width: 1460px; margin: 26px auto 0; padding: 0 26px; width: 100%; }
.tool-head .crumbs { font-size: 13px; color: var(--faint); margin-bottom: 6px; }
.tool-head h1 { margin: 0; font-size: 26px; font-weight: 700; letter-spacing: -.01em; }
.tool-head .sub { color: var(--muted); margin: 6px 0 0; max-width: 900px; font-size: 14.5px; }

.tool-layout {
  display: grid; grid-template-columns: 380px minmax(0, 1fr); gap: 20px;
  max-width: 1460px; margin: 20px auto 60px; padding: 0 26px; width: 100%;
  align-items: start; flex: 1;
}
@media (max-width: 980px) { .tool-layout { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.panel h2 {
  margin: 0 0 14px; font-size: 13px; font-weight: 650; color: var(--muted);
  text-transform: uppercase; letter-spacing: .14em;
  display: flex; align-items: center; gap: 8px;
}
.panel h2::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.panel + .panel { margin-top: 20px; }
.stack > .panel + .panel { margin-top: 20px; }

/* ---------- form fields ---------- */
.field { margin-bottom: 13px; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 5px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.inwrap { position: relative; display: flex; }
input[type="number"], input[type="text"], select {
  width: 100%; background: var(--bg-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 7px;
  padding: 8px 11px; font: 14px var(--mono); outline: none;
  transition: border-color .12s ease;
}
input:focus, select:focus { border-color: var(--accent-dim); }
.inwrap .unit {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font-size: 11.5px; color: var(--faint); pointer-events: none; font-family: var(--mono);
}
.inwrap input { padding-right: 46px; }
select { appearance: none; cursor: pointer; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.check { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: var(--muted); }
.check input { accent-color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  background: var(--accent); color: #06121f; border: none; border-radius: 7px;
  padding: 8px 16px; font: 600 13.5px "Manrope", "Segoe UI", sans-serif;
  transition: filter .12s ease;
}
.btn:hover { filter: brightness(1.12); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent-dim); }
.btn.small { padding: 5px 11px; font-size: 12.5px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

/* ---------- results ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); gap: 12px; }
.stat {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 11px 13px;
}
.stat .k { font-size: 11.5px; color: var(--faint); letter-spacing: .04em; text-transform: uppercase; }
.stat .v { font: 600 17px var(--mono); color: var(--text); margin-top: 3px; }
.stat .v small { font-size: 11.5px; color: var(--muted); font-weight: 400; }
.stat.accent .v { color: var(--accent); }
.stat.warn .v { color: var(--accent-2); }
.stat.good .v { color: var(--good); }
.stat.bad .v { color: var(--bad); }

.canvas-wrap { background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px; }
.canvas-wrap canvas { display: block; width: 100%; }
.canvas-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 1200px) { .canvas-row { grid-template-columns: 1fr; } }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font: 13px var(--mono); }
table.data th {
  text-align: left; color: var(--faint); font: 500 11px var(--mono);
  text-transform: uppercase; letter-spacing: .07em;
  padding: 7px 9px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.data td { padding: 5px 9px; border-bottom: 1px solid rgba(34, 48, 77, .55); white-space: nowrap; }
table.data input, table.data select { padding: 4.5px 8px; font-size: 12.5px; }
table.data td.num { text-align: right; }
table.data .rowbtn {
  cursor: pointer; border: none; background: transparent; color: var(--faint);
  font-size: 15px; padding: 2px 6px; border-radius: 5px;
}
table.data .rowbtn:hover { color: var(--bad); background: rgba(255, 107, 107, .1); }

/* ---------- misc ---------- */
.note {
  font-size: 12.8px; color: var(--muted); background: rgba(47, 180, 255, .06);
  border: 1px solid rgba(47, 180, 255, .18); border-radius: 8px; padding: 10px 13px;
  margin-top: 14px;
}
.note b { color: var(--text); }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.legend-chip { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; }
.tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.tabs button {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 999px; padding: 6px 15px; font: 600 12.5px "Manrope", sans-serif; cursor: pointer;
}
.tabs button.active { background: rgba(47, 180, 255, .12); border-color: var(--accent-dim); color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: var(--mono); }

footer {
  margin-top: auto; border-top: 1px solid var(--border);
  padding: 22px 26px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  color: var(--faint); font-size: 12.8px;
}
footer .sep { color: var(--border); }
footer a { color: var(--muted); }

/* ============================================================
   Beginner / Advanced UI layer (ui.js)
   ============================================================ */

/* ---- mode toggle (segmented control in the top bar) ---- */
.mode-toggle {
  display: inline-flex; border: 1px solid var(--border); border-radius: 999px;
  padding: 3px; background: var(--bg-2); gap: 2px;
}
.mode-toggle button {
  border: none; background: transparent; color: var(--muted); cursor: pointer;
  font: 600 12px "Inter", sans-serif; padding: 5px 13px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 6px; transition: background .12s, color .12s;
}
.mode-toggle button.on { background: var(--accent); color: #06121f; }
.mode-toggle button svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.8; }

/* visibility driven by body mode class */
body.mode-guided .adv-only { display: none !important; }
body.mode-advanced .guide-only { display: none !important; }

/* ---- guided callouts (teaching notes, shown in Guided mode) ---- */
.guide-callout {
  display: flex; gap: 11px; align-items: flex-start;
  background: rgba(47, 180, 255, .06); border: 1px solid rgba(47, 180, 255, .2);
  border-radius: 9px; padding: 11px 13px; margin-bottom: 14px; font-size: 13px; color: var(--muted);
}
.guide-callout .gi {
  flex: none; width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center;
  background: rgba(47, 180, 255, .14); color: var(--accent); font-weight: 700; font-size: 13px;
}
.guide-callout b { color: var(--text); font-weight: 600; }

/* ---- info tooltips (ⓘ next to labels / terms) ---- */
.tip {
  position: relative; cursor: help; border-bottom: 1px dotted var(--faint);
}
.tip .ii {
  display: inline-grid; place-items: center; width: 14px; height: 14px; margin-left: 3px;
  border-radius: 50%; border: 1px solid var(--faint); color: var(--faint);
  font: 600 9.5px "Inter", sans-serif; vertical-align: middle; cursor: help; border-bottom: none;
}
.tip[data-tip]:hover::after, .tip.show[data-tip]::after {
  content: attr(data-tip);
  position: absolute; left: 0; top: calc(100% + 7px); z-index: 100;
  width: max-content; max-width: 270px; white-space: normal;
  background: #0b1424; color: var(--text); border: 1px solid var(--accent-dim);
  border-radius: 8px; padding: 9px 11px; font: 400 12px/1.5 "Inter", sans-serif;
  box-shadow: var(--shadow); pointer-events: none;
}
.tip[data-tip]:hover::before, .tip.show[data-tip]::before {
  content: ""; position: absolute; left: 9px; top: calc(100% + 1px); z-index: 101;
  border: 6px solid transparent; border-bottom-color: var(--accent-dim);
}

/* ---- interpretation / verdict panel ---- */
.verdict { display: flex; flex-direction: column; gap: 9px; }
.verdict-item {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-size: 13px; color: var(--text);
}
.verdict-item .vmark {
  flex: none; width: 19px; height: 19px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; margin-top: 1px;
}
.verdict-item.good .vmark { background: rgba(61, 220, 151, .16); color: var(--good); }
.verdict-item.warn .vmark { background: rgba(255, 180, 84, .16); color: var(--accent-2); }
.verdict-item.bad  .vmark { background: rgba(255, 107, 107, .16); color: var(--bad); }
.verdict-item.info .vmark { background: rgba(47, 180, 255, .16); color: var(--accent); }
.verdict-item .vtext b { font-weight: 650; }
.verdict-item .vtext .vsub { color: var(--muted); font-size: 12.2px; margin-top: 2px; }

/* panel accent for the interpretation block */
.panel.interpret { border-color: var(--accent-dim); background: linear-gradient(180deg, rgba(47,180,255,.04), var(--panel)); }

/* ---- "Learn the concept" collapsible ---- */
.learn { margin-top: 14px; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; }
.learn > summary {
  cursor: pointer; list-style: none; padding: 11px 14px; font: 600 13px "Inter", sans-serif;
  color: var(--accent); display: flex; align-items: center; gap: 8px; background: var(--bg-2);
}
.learn > summary::-webkit-details-marker { display: none; }
.learn > summary::before { content: "▸"; font-size: 11px; transition: transform .15s; }
.learn[open] > summary::before { transform: rotate(90deg); }
.learn .learn-body { padding: 13px 15px; font-size: 13px; color: var(--muted); line-height: 1.6; }
.learn .learn-body p { margin: 0 0 9px; }
.learn .learn-body p:last-child { margin-bottom: 0; }
.learn .learn-body b { color: var(--text); }
.learn .learn-body .eq { font-family: var(--mono); color: var(--accent-2); font-size: 12.5px; }

/* ---- segmented sub-mode tabs reused for input grouping ---- */
.adv-badge {
  font: 600 9.5px "Inter", sans-serif; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent-2); border: 1px solid rgba(255,180,84,.35); border-radius: 4px;
  padding: 1px 5px; margin-left: 7px; vertical-align: middle;
}

/* ============================================================
   SPECTRAL overrides — aligns the tool suite with the main site
   (appended layer; later rules win at equal specificity)
   ============================================================ */
h1, h2, h3 { font-family: var(--display); letter-spacing: -.015em; }

.topbar {
  background: rgba(3, 4, 7, .72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
}
.topbar::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--spectrum); opacity: .35; pointer-events: none; }
.topbar nav a.cta { background: #fff; color: #05060a; font-weight: 700; }
.topbar nav a.cta:hover { box-shadow: 0 0 0 1px rgba(255,255,255,.25), 0 8px 28px rgba(47,180,255,.3); text-decoration: none; }
.brand .suite { font-family: var(--mono); letter-spacing: .22em; font-size: 10.5px; }

.hero h1 { font-weight: 800; letter-spacing: -.025em; }
.hero h1 em { font-style: normal;
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent; }

.card { position: relative; overflow: hidden; background: var(--panel); }
.card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1.5px;
  background: var(--spectrum); transform: scaleX(0); transform-origin: 0 50%;
  transition: transform .5s cubic-bezier(.22,1,.36,1); }
.card:hover { transform: translateY(-4px); border-color: var(--border); }
.card:hover::before { transform: scaleX(1); }
.card .icon { background: rgba(47, 180, 255, .08); }

.panel { position: relative; }
.panel h2 { font-family: var(--mono); font-weight: 500; font-size: 11px;
  letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.tool-head .crumbs { font-family: var(--mono); font-size: 11px;
  letter-spacing: .1em; text-transform: uppercase; }
.tool-head h1 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; }

.badge { font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.adv-badge { display: none; }

footer { border-top: 1px solid var(--border-soft); }

/* signup gate (injected at build) */
.gate-veil { position: fixed; inset: 0; z-index: 300; display: none;
  background: rgba(2, 3, 6, .82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  align-items: center; justify-content: center; padding: 22px; }
.gate-veil.open { display: flex; }
.gate-card { width: 100%; max-width: 460px; background: #0a0d15; border: 1px solid var(--border);
  border-radius: 14px; padding: 32px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.gate-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--spectrum); }
.gate-card h3 { margin: 0 0 6px; font-size: 21px; }
.gate-card .gsub { margin: 0 0 18px; color: var(--muted); font-size: 14px; }
.gate-card input[type=email], .gate-card input[type=text] {
  width: 100%; padding: 12px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: rgba(255, 255, 255, .03); color: var(--text);
  font: 15px "Manrope", "Segoe UI", sans-serif; margin-bottom: 10px; }
.gate-card input:focus { outline: none; border-color: rgba(47, 180, 255, .6); }
.gate-card button { width: 100%; padding: 13px; border-radius: 999px; border: 0;
  background: #fff; color: #05060a; font: 700 15px "Manrope", sans-serif; cursor: pointer; }
.gate-card .gmsg { display: none; margin-top: 10px; color: var(--good); font-size: 13.5px; }
.gate-card .gfoot { margin: 14px 0 0; font-size: 12.5px; color: var(--faint); }
.gate-card .gfoot a { color: var(--accent); }

/* prescription tables (zmx analyzer & friends) */
.rx { width: 100%; border-collapse: collapse; font: 12.5px var(--mono); }
.rx th { text-align: left; color: var(--faint); font-weight: 500; font-size: 10.5px;
  letter-spacing: .12em; text-transform: uppercase; padding: 7px 10px;
  border-bottom: 1px solid var(--border); }
.rx td { padding: 6px 10px; border-bottom: 1px solid var(--border-soft); color: var(--muted);
  white-space: nowrap; }
.rx tr:hover td { background: rgba(255, 255, 255, .02); }

/* ============================================================
   SPECTRAL ambience & brand — round 2
   ============================================================ */
/* aurora glow field behind everything */
body::before {
  content: ""; position: fixed; inset: -20%; z-index: -2; pointer-events: none;
  background:
    radial-gradient(38% 42% at 18% 8%, rgba(123, 91, 255, .14), transparent 65%),
    radial-gradient(42% 46% at 85% 4%, rgba(47, 180, 255, .12), transparent 65%),
    radial-gradient(36% 40% at 55% 100%, rgba(53, 227, 156, .07), transparent 65%),
    radial-gradient(28% 32% at 100% 70%, rgba(255, 180, 84, .05), transparent 65%);
  animation: mo-aurora 52s ease-in-out infinite alternate;
}
@keyframes mo-aurora {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(3%, 2%, 0) scale(1.06); }
  100% { transform: translate3d(-3%, -2%, 0) scale(.97); }
}
/* film grain above everything */
body::after {
  content: ""; position: fixed; inset: -50%; z-index: 95; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  opacity: .04; animation: mo-grain 9s steps(10) infinite;
}
@keyframes mo-grain {
  0%, 100% { transform: translate(0, 0) } 20% { transform: translate(-3%, 2%) }
  40% { transform: translate(2%, -3%) } 60% { transform: translate(-2%, -2%) } 80% { transform: translate(3%, 3%) }
}
.bg-dust { position: fixed; inset: 0; z-index: -1; pointer-events: none; width: 100%; height: 100%; }

/* brand wordmark (matches main site) */
.brand .mark { width: 26px; height: 26px; display: block; }
.brand .word { font: 700 18px/1 var(--display); letter-spacing: -.01em; color: var(--text); }
.brand .word b { font-weight: 700;
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent; }
.brand:hover { text-decoration: none; }

/* retired guided/advanced toggle — belt & braces */
.mode-toggle { display: none !important; }

/* richer hub hero */
.hero { margin-top: 64px; position: relative; }
.hero .eyebrow { display: inline-flex; align-items: center; gap: 12px;
  font: 500 11px/1.6 var(--mono); letter-spacing: .24em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 16px; }
.hero .eyebrow::before { content: ""; width: 30px; height: 1px; background: var(--spectrum); }
.hero h1 { font-size: clamp(30px, 4.6vw, 52px); }
.hero-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.hero-meta span { font: 500 10.5px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--border-soft); border-radius: 99px; padding: 8px 14px;
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, .02); }
.hero-meta span::before { content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--good); box-shadow: 0 0 8px var(--good); }
.hero-meta span:nth-child(2)::before { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.hero-meta span:nth-child(3)::before { background: #7b5bff; box-shadow: 0 0 8px #7b5bff; }

/* tool page heads get a spectral rule */
.tool-head h1 { position: relative; padding-bottom: 14px; }
.tool-head h1::after { content: ""; position: absolute; left: 0; bottom: 0; width: 64px; height: 2px;
  background: var(--spectrum); border-radius: 2px; }

@media (prefers-reduced-motion: reduce) {
  body::before, body::after { animation: none !important; }
}
.gate-veil.open { overflow-y:auto; }
.gate-card { max-height:calc(100svh - 40px); overflow-y:auto; }
.gate-card .gmsg { color:#ffb4ac; line-height:1.5; }
:focus-visible { outline:2px solid #5ecbff; outline-offset:3px; }