/* ChemInfo Track — shares Chemestry's space palette. */
:root {
  --bg: #05060d;
  --panel: rgba(12, 16, 32, 0.78);
  --panel-solid: #0c1020;
  --panel-2: #11162b;
  --line: rgba(140, 170, 255, 0.16);
  --line-strong: rgba(140, 170, 255, 0.32);
  --text: #e3e9ff;
  --muted: #8a94b6;
  --accent: #7fd6ff;
  --accent-2: #b58cff;
  --good: #5ef2a8;
  --warn: #ffc15e;
  --bad: #ff6b76;
  --radius: 14px;
  --top: 64px;
  --font: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 15px/1.45 var(--font); -webkit-font-smoothing: antialiased; }
body { overflow: hidden; }
.hidden { display: none !important; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: 0.9em; background: rgba(127, 214, 255, 0.08); padding: 1px 5px; border-radius: 5px; word-break: break-all; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.bad { color: var(--bad); }
.warn { color: var(--warn); }
h1, h2, h3, h4 { margin: 0 0 8px; line-height: 1.2; }
h2 { font-size: 22px; } h3 { font-size: 17px; margin-top: 22px; } h4 { font-size: 14px; margin-top: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

/* ── buttons ───────────────────────────────────────────────────────────── */
.btn {
  border: 1px solid var(--line-strong); background: var(--panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding: 8px 14px; border-radius: 999px; cursor: pointer; white-space: nowrap; text-decoration: none; display: inline-flex; align-items: center; gap: 4px;
  transition: border-color .15s, background .15s, transform .1s, box-shadow .2s;
}
.btn:hover { border-color: var(--accent); box-shadow: 0 0 16px rgba(127, 214, 255, 0.18); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: .4; cursor: not-allowed; box-shadow: none; }
.btn.icon { width: 38px; height: 38px; padding: 0; justify-content: center; font-size: 17px; }
.btn.icon.small { width: 30px; height: 30px; font-size: 14px; }
.btn.small { padding: 5px 11px; font-size: 13px; }
.btn.primary { background: linear-gradient(135deg, rgba(127, 214, 255, .28), rgba(181, 140, 255, .28)); border-color: rgba(127, 214, 255, .6); }
.btn.ghost { background: transparent; }
.btn.due { border-color: var(--warn); box-shadow: 0 0 14px rgba(255, 193, 94, .25); }
.row-btns { display: flex; gap: 8px; margin-top: 12px; align-items: center; }
.row-btns.wrap { flex-wrap: wrap; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.pill { padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; }
.tag { font-size: 11.5px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--muted); }
.tag.good { color: var(--good); border-color: rgba(94, 242, 168, .5); }
.xp-tag { font-size: 12px; color: var(--warn); }

/* ── top bar ───────────────────────────────────────────────────────────── */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--top); z-index: 20;
  display: flex; align-items: center; gap: 14px; padding: 0 16px; padding-top: env(safe-area-inset-top);
  background: linear-gradient(rgba(5, 6, 13, .92), rgba(5, 6, 13, .6)); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand h1 { font-size: 19px; margin: 0; letter-spacing: .03em; font-weight: 650; white-space: nowrap; }
.brand h1 span { color: var(--accent); text-shadow: 0 0 12px var(--accent); }
.brand .sub { margin: 0; color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.logo { width: 32px; height: 32px; border-radius: 50%; position: relative; flex: none;
  background: radial-gradient(circle, #b58cff 0 5px, transparent 6px); border: 1.5px solid rgba(127, 214, 255, .6);
  box-shadow: 0 0 18px rgba(127, 214, 255, .35); }
.logo::after { content: ""; position: absolute; width: 6px; height: 6px; border-radius: 50%; background: #fff; box-shadow: 0 0 8px #fff;
  top: -3px; left: 13px; animation: orbit 3.2s linear infinite; transform-origin: 3px 19px; }
.logo.big { width: 64px; height: 64px; }
@keyframes orbit { to { transform: rotate(360deg); } }
.xpbar { flex: 1; max-width: 360px; height: 22px; border-radius: 999px; border: 1px solid var(--line-strong); position: relative; overflow: hidden; background: rgba(12, 16, 32, .6); }
.xpbar i { position: absolute; inset: 0 auto 0 0; width: 0; background: linear-gradient(90deg, rgba(127, 214, 255, .45), rgba(181, 140, 255, .55)); transition: width .5s ease; }
.xpbar span { position: relative; font-size: 12px; display: block; text-align: center; line-height: 20px; }
.top-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.spark { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); display: inline-block; }
.dot.ok { background: var(--good); box-shadow: 0 0 8px var(--good); }
.dot.half { background: var(--warn); box-shadow: 0 0 8px var(--warn); }
.dot.off { background: var(--bad); }
.popover { position: absolute; top: calc(var(--top) + 4px); right: 16px; width: 300px; padding: 14px 16px; z-index: 30; background: var(--panel-solid); }

/* ── tabs ──────────────────────────────────────────────────────────────── */
nav.tabs { position: fixed; top: calc(var(--top) + 10px); left: 50%; transform: translateX(-50%); z-index: 15; display: flex; gap: 4px;
  padding: 4px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(8px); }
nav.tabs button { border: 0; background: none; padding: 7px 16px; border-radius: 999px; cursor: pointer; color: var(--muted); }
nav.tabs button.on { background: rgba(127, 214, 255, .16); color: var(--text); }

main { position: fixed; inset: var(--top) 0 0 0; }
#galaxy-view, #page-view { position: absolute; inset: 0; }
#page-view { overflow-y: auto; -webkit-overflow-scrolling: touch; }
canvas#galaxy { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: none; }
canvas#galaxy.dragging { cursor: grabbing; }
canvas#galaxy.pointing { cursor: pointer; }
.hint { position: absolute; left: 16px; bottom: 16px; margin: 0; padding: 10px 14px; max-width: 420px; font-size: 14px; }
.fit { position: absolute; right: 16px; bottom: 16px; }
.loading { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 12px; background: var(--bg); z-index: 5; text-align: center; padding: 16px; }

.skill-card { position: absolute; top: 64px; right: 16px; width: 360px; max-height: calc(100% - 96px); overflow-y: auto; padding: 18px; }
.skill-card .close, .modal .close { position: absolute; top: 10px; right: 10px; }
.stars-big { color: var(--warn); font-size: 20px; letter-spacing: 2px; margin: 4px 0 8px; }

/* ── pages ─────────────────────────────────────────────────────────────── */
.page { max-width: 1040px; margin: 0 auto; padding: 64px 16px 96px; }
.page-head p { max-width: 720px; }
.ticket-grid, .creds, .portfolio { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.ticket { padding: 16px; display: flex; flex-direction: column; gap: 4px; }
.ticket h3 { margin: 6px 0 0; }
.ticket.locked { opacity: .55; }
.ticket.done { border-color: rgba(94, 242, 168, .35); }
.ticket-top { display: flex; gap: 8px; align-items: center; }
.ticket-brief { flex: 1; font-size: 14px; }
.ticket-brief p { margin: 4px 0; }
.ticket .btn { align-self: flex-start; }
.career-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; align-items: start; }
.ladder { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ladder li { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: start; opacity: .6; }
.ladder li.now, .ladder li.past { opacity: 1; }
.ladder p { margin: 2px 0 0; }
.rung { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-strong); font-weight: 700; }
.ladder li.past .rung { background: rgba(94, 242, 168, .15); border-color: var(--good); }
.ladder li.now .rung { background: rgba(127, 214, 255, .2); border-color: var(--accent); box-shadow: 0 0 14px rgba(127, 214, 255, .4); }
.promo { padding: 16px; margin-top: 22px; }
.promo h3 { margin-top: 0; }
.cred, .portfolio .card { padding: 14px; }
.cred h4 { text-transform: none; letter-spacing: 0; color: var(--text); font-size: 15px; margin-top: 0; }
.meter { height: 8px; border-radius: 999px; background: rgba(140, 170, 255, .12); overflow: hidden; margin: 8px 0 4px; }
.meter i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--good)); }
.badges { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
.badge { padding: 12px; border: 1px dashed var(--line); border-radius: 12px; display: grid; gap: 2px; opacity: .55; }
.badge.got { opacity: 1; border-style: solid; border-color: rgba(255, 193, 94, .45); background: rgba(255, 193, 94, .06); }
.medal { font-size: 22px; color: var(--warn); }
.checks { list-style: none; padding: 0; margin: 6px 0; display: grid; gap: 4px; }
.checks li.ok { color: var(--good); }
.checks li.bad { color: var(--text); }

/* ── modal + sessions ──────────────────────────────────────────────────── */
.modal-back { position: fixed; inset: 0; z-index: 40; background: rgba(2, 3, 8, .72); display: grid; place-items: center; padding: 16px; }
.modal { position: relative; width: min(560px, 100%); max-height: calc(100dvh - 32px); overflow-y: auto; padding: 22px; background: var(--panel-solid); }
.modal.wide { width: min(860px, 100%); }
.session { display: flex; flex-direction: column; gap: 14px; min-height: 360px; }
.sess-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding-right: 40px; }
.dots { display: flex; gap: 4px; flex: 1; }
.dots i, .pager i { width: 10px; height: 4px; border-radius: 3px; background: var(--line-strong); flex: 1; max-width: 26px; }
.dots i.done, .pager i.done { background: var(--accent-2); }
.dots i.now, .pager i.now { background: var(--accent); }
.combo { font-weight: 700; min-width: 54px; text-align: right; }
.combo.hot { color: var(--warn); text-shadow: 0 0 10px rgba(255, 193, 94, .6); }
.q { font-size: 17px; }
.q p { margin: 0 0 8px; }
.opts { display: grid; gap: 8px; }
.opt { text-align: left; padding: 11px 14px; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--panel-2); cursor: pointer; display: flex; gap: 10px; align-items: baseline; }
.opt:hover:not(:disabled) { border-color: var(--accent); }
.opt.on { border-color: var(--accent); background: rgba(127, 214, 255, .1); }
.opt.right { border-color: var(--good); background: rgba(94, 242, 168, .12); }
.opt.wrong { border-color: var(--bad); background: rgba(255, 107, 118, .1); }
.opt .key { font-size: 12px; color: var(--muted); font-weight: 700; }
.answer-input, input[type=text], input[type=number], textarea, select {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--panel-2); font-family: var(--mono); font-size: 15px; }
select { width: auto; font-family: var(--font); padding: 6px 8px; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(127, 214, 255, .5); outline-offset: 1px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); margin: 8px 0; }
label.chk { display: flex; align-items: center; gap: 6px; }
label.chk input { width: auto; }
.feedback { border-radius: 12px; padding: 12px 14px; }
.feedback:empty { display: none; }
.feedback.ok { background: rgba(94, 242, 168, .08); border: 1px solid rgba(94, 242, 168, .4); }
.feedback.bad { background: rgba(255, 107, 118, .07); border: 1px solid rgba(255, 107, 118, .4); }
.feedback p { margin: 6px 0 0; }
.sess-foot { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: auto; }
.sess-end { text-align: center; padding: 30px 0; }
.sess-end .big { font-size: 54px; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ex-extra { margin-top: 10px; }

/* molecules */
.mol-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.mol-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mol-card { position: relative; border: 1px solid var(--line); border-radius: 12px; padding: 8px; background: var(--panel-2); display: grid; gap: 4px; cursor: default; }
.mol-card[class*=" on"], .mol-card.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.mol-grid .mol-card { cursor: pointer; }
.mol-card.ok { border-color: var(--good); }
.mol-card.bad { border-color: var(--bad); }
.mol-card.truth::after { content: "✓ should be picked"; font-size: 11px; color: var(--good); }
.mol-card.small { width: 150px; }
.mol-pic { min-height: 90px; display: grid; place-items: center; }
.mol-pic svg { width: 100%; height: auto; max-height: 160px; }
.mol-pic.big svg { max-height: 240px; }
.mol-pic.inline { max-width: 260px; }
.mol-label { font-weight: 700; font-size: 13px; }
.mol-smiles { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; word-break: normal; }
.bench-btn { position: absolute; top: 6px; right: 6px; padding: 2px 8px; font-size: 11px; }
.smarts-sets h4 { margin-top: 12px; }
.rank-list { padding-left: 22px; display: grid; gap: 8px; }
.rank-list li { display: flex; gap: 10px; align-items: center; }
.rank-btns { display: flex; flex-direction: column; gap: 4px; }
.sim-tag { font-size: 12px; color: var(--accent); }

/* lessons */
.lesson-card { min-height: 220px; font-size: 16px; }
.lesson-card h2 { margin-top: 6px; }
.lesson-nav { display: flex; justify-content: space-between; margin-top: 14px; }
.pager { display: flex; gap: 4px; padding-right: 40px; margin-bottom: 10px; }
.sources { padding-left: 18px; font-size: 13.5px; display: grid; gap: 4px; }
.sources .tag { margin-left: 6px; }
.lib-note blockquote { margin: 2px 0 6px 10px; color: var(--muted); font-size: 13px; border-left: 2px solid var(--line-strong); padding-left: 8px; }
.tutor { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 10px; }
.tutor summary { cursor: pointer; color: var(--accent-2); font-weight: 600; }
.tutor-row { display: flex; gap: 8px; margin-top: 8px; }
.tutor-row input { font-family: var(--font); }
.cites { font-size: 13px; padding-left: 20px; }

/* tickets workspace */
.brief { display: grid; grid-template-columns: 48px 1fr; gap: 14px; padding-right: 40px; }
.avatar { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; background: linear-gradient(135deg, rgba(127, 214, 255, .3), rgba(181, 140, 255, .3)); border: 1px solid var(--line-strong); }
.brief p { margin: 6px 0; }
.palette { display: flex; flex-wrap: wrap; gap: 6px; }
.pipe { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.pipe .node { border: 1px solid var(--line-strong); border-radius: 12px; padding: 10px 12px; background: var(--panel-2); position: relative; margin-bottom: 18px; }
.pipe .node:not(:last-child)::after { content: "↓"; position: absolute; left: 50%; bottom: -18px; color: var(--muted); font-size: 13px; }
.pipe .node.fixed { background: transparent; border-style: dashed; }
.pipe .node.err { border-color: var(--bad); box-shadow: 0 0 0 1px var(--bad) inset; }
.pipe .node p { margin: 2px 0 6px; }
.node-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.node-btns { display: flex; gap: 4px; }
.params { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: end; }
.params label { margin: 0; }
.params label.grow { flex: 1; min-width: 200px; }
.params input[type=number] { width: 110px; }
.data-preview { margin: 10px 0; }
.data-preview summary { cursor: pointer; color: var(--accent); }
.log { display: grid; gap: 4px; }
.log-step { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; padding: 6px 10px; border-left: 2px solid var(--accent-2); background: rgba(181, 140, 255, .05); }
.log-step .count { font-family: var(--mono); }
.table-wrap { overflow-x: auto; }
table.rows, table.props { border-collapse: collapse; width: 100%; font-size: 13px; }
table.rows th, table.rows td { text-align: left; padding: 5px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.rows td.smi { font-family: var(--mono); font-size: 12px; max-width: 340px; overflow: hidden; text-overflow: ellipsis; }
table.props th { text-align: left; color: var(--muted); font-weight: 500; padding: 4px 0; }
table.props td { text-align: right; font-family: var(--mono); }
.bar { height: 3px; background: rgba(140, 170, 255, .12); margin-top: 3px; }
.bar i { display: block; height: 100%; background: var(--accent); }

/* bench drawer */
.bench { position: fixed; top: var(--top); right: 0; bottom: 0; width: min(440px, 100%); z-index: 35; border-radius: 0; border-width: 0 0 0 1px;
  padding: 14px 16px 30px; overflow-y: auto; background: var(--panel-solid); transform: translateX(105%); transition: transform .25s ease; }
.bench.open { transform: none; box-shadow: -20px 0 40px rgba(0, 0, 0, .5); }
.bench-head { display: flex; align-items: center; gap: 10px; }
.bench-head h3 { margin: 0; flex: 1; }
.bench .row { display: flex; gap: 8px; margin-top: 10px; }
.bench .seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden; margin: 10px 0 4px; }
.bench .seg button { border: 0; background: none; padding: 6px 14px; cursor: pointer; color: var(--muted); }
.bench .seg button.on { background: rgba(127, 214, 255, .16); color: var(--text); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.chip { border: 1px solid var(--line); background: none; border-radius: 999px; padding: 3px 10px; font-size: 12.5px; cursor: pointer; color: var(--muted); }
.chip:hover { color: var(--text); border-color: var(--accent); }
.ids { display: grid; gap: 2px; font-size: 13px; }
.ids dt { color: var(--muted); }
.ids dd { margin: 0 0 6px; }
.from:empty { display: none; }
.from { margin: 6px 0; color: var(--accent-2); }
.modal-back { z-index: 40; }
body.bench-open .modal-back { right: min(440px, 100%); }

/* toasts, xp, confetti */
.toasts { position: fixed; top: calc(var(--top) + 60px); left: 50%; transform: translateX(-50%); z-index: 60; display: grid; gap: 6px; pointer-events: none; }
.toast { background: var(--panel-solid); border: 1px solid var(--line-strong); padding: 8px 14px; border-radius: 999px; font-size: 14px; transition: opacity .4s, transform .4s; text-align: center; }
.toast.good { border-color: rgba(94, 242, 168, .6); }
.toast.badge { border-color: rgba(255, 193, 94, .7); color: var(--warn); }
.toast.bad { border-color: rgba(255, 107, 118, .6); }
.toast.out { opacity: 0; transform: translateY(-8px); }
.xp-float { position: fixed; z-index: 70; pointer-events: none; color: var(--warn); font-weight: 800; text-shadow: 0 0 10px rgba(255, 193, 94, .7); transform: translate(-50%, 0); animation: rise 1.2s ease-out forwards; }
@keyframes rise { to { transform: translate(-50%, -46px); opacity: 0; } }
.confetti { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 80; pointer-events: none; }

/* ── phones ────────────────────────────────────────────────────────────── */
@media (max-width: 760px) {
  :root { --top: 96px; }
  .topbar { flex-wrap: wrap; height: auto; min-height: var(--top); gap: 6px 10px; padding: 8px 12px; padding-top: max(8px, env(safe-area-inset-top)); align-content: center; }
  .hide-sm { display: none; }
  .brand h1 { font-size: 17px; }
  .xpbar { order: 3; flex-basis: 100%; max-width: none; height: 18px; }
  .xpbar span { line-height: 16px; font-size: 11px; }
  .top-actions { gap: 5px; }
  .top-actions .btn.small { padding: 5px 9px; }
  nav.tabs { top: auto; bottom: max(10px, env(safe-area-inset-bottom)); }
  .hint { bottom: 70px; right: 16px; font-size: 13px; }
  .fit { bottom: 70px; top: auto; }
  .fit { display: none; }
  .skill-card { top: auto; bottom: 66px; left: 8px; right: 8px; width: auto; max-height: 62%; }
  .career-grid { grid-template-columns: 1fr; }
  .page { padding-top: 16px; }
  .modal-back { padding: 0; place-items: end stretch; }
  .modal, .modal.wide { width: 100%; max-height: 92dvh; border-radius: 18px 18px 0 0; padding: 18px 14px 26px; }
  body.bench-open .modal-back { right: 0; }
  .mol-card.small { width: calc(50% - 4px); }
  .popover { right: 8px; left: 8px; width: auto; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }