@font-face { font-family: "Geist"; src: url(../fonts/geist.woff2) format("woff2"); font-weight: 300 800; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url(../fonts/geist-mono.woff2) format("woff2"); font-weight: 400 600; font-display: swap; }

/* Dark, instrument-panel look: deep navy, hairline grid, cyan→violet signal. */
:root {
  --bg: #05070d;
  --bg-2: #080c16;
  --paper: rgba(16, 22, 38, .72);
  --paper-solid: #0e1424;
  --paper-2: rgba(10, 15, 28, .9);
  --ink: #e8eef9;
  --ink-2: #9aa7bf;
  --ink-3: #5f6b85;
  --line: rgba(120, 150, 210, .16);
  --line-2: rgba(120, 150, 210, .09);
  --accent: #22d3ee;
  --accent-3: #8b5cf6;
  --accent-2: rgba(34, 211, 238, .1);
  --on-accent: #04121a;
  --grad: linear-gradient(100deg, #22d3ee 0%, #6366f1 55%, #a855f7 100%);
  --glow: 0 0 0 1px rgba(34, 211, 238, .35), 0 0 24px -4px rgba(34, 211, 238, .45);
  --mark: #22d3ee;
  --mark-soft: rgba(34, 211, 238, .22);
  --hero-mark: transparent;
  --ok: #34d399;
  --ok-bg: rgba(52, 211, 153, .1);
  --bad: #fb7185;
  --bad-bg: rgba(251, 113, 133, .1);
  --warn: #fbbf24;
  --warn-bg: rgba(251, 191, 36, .1);
  --grid: rgba(110, 140, 220, .07);
  --radius: 10px;
  --display: "Geist", "Segoe UI", system-ui, sans-serif;
  --body: "Geist", "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0; color: var(--ink); font: 16px/1.6 var(--body); min-height: 100vh;
  background:
    radial-gradient(1100px 520px at 78% -8%, rgba(99, 102, 241, .18), transparent 60%),
    radial-gradient(900px 480px at 8% 4%, rgba(34, 211, 238, .12), transparent 60%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 44px 44px,
    var(--bg);
  background-attachment: fixed;
}
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.15rem); font-weight: 700; }
h3 { font-size: 1.12rem; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
code, .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.shell { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--ink-2); }
.small { font-size: .875rem; }

/* ------------------------------------------------------------ top bar */
.bar { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar .shell { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 1.2rem/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.brand svg { width: 28px; height: 28px; }
.links { display: flex; gap: 4px; margin-left: auto; }
.links a { color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: .95rem; }
.links a:hover, .links a[aria-current="page"] { color: var(--ink); background: var(--paper); }
.pass-chip { font: 500 .85rem/1 var(--body); border: 1px solid var(--line); background: var(--paper); color: var(--ink); padding: 9px 12px; border-radius: 999px; cursor: pointer; white-space: nowrap; }
.pass-chip.on { border-color: var(--ok); color: var(--ok); }
.menu-btn { display: none; }
@media (max-width: 760px) {
  .links { display: none; position: absolute; top: 60px; left: 0; right: 0; flex-direction: column; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 12px; }
  .links.open { display: flex; }
  .menu-btn { display: inline-flex; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; color: var(--ink); font: inherit; }
  .pass-chip { padding: 8px 10px; }
}

/* ------------------------------------------------------------- buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 .95rem/1 var(--body); padding: 12px 18px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer; text-decoration: none; transition: transform .08s, border-color .15s; }
.btn:hover { border-color: var(--ink-3); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 8px 12px; font-size: .85rem; border-radius: 8px; }
.btn .lock { font-size: .75rem; opacity: .7; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------------------------------------------------------------- hero */
.hero { padding: 56px 0 40px; }
.hero .shell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 48px; align-items: center; }
.kicker { display: inline-flex; gap: 8px; align-items: center; font: 500 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-2); margin-bottom: 18px; }
.kicker b { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.hero h1 mark { background: linear-gradient(transparent 58%, var(--hero-mark) 58%); color: inherit; padding: 0 .08em; }
.lede { font-size: 1.12rem; color: var(--ink-2); max-width: 36em; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 0; margin: 22px 0 0; list-style: none; font-size: .92rem; color: var(--ink-2); }
.facts li::before { content: "✓"; color: var(--ok); font-weight: 700; margin-right: 6px; }
@media (max-width: 900px) { .hero .shell { grid-template-columns: 1fr; gap: 28px; } .hero { padding-top: 32px; } }

.drop { position: relative; border-radius: 16px; background: var(--paper); border: 1px solid var(--line); padding: 14px; box-shadow: 0 1px 0 var(--line-2), 0 18px 40px -24px rgba(11, 18, 32, .25); }
.drop-zone { display: grid; place-items: center; text-align: center; min-height: 300px; border-radius: 10px; border: 2px dashed var(--line); padding: 28px; cursor: pointer;
  background-color: var(--paper-2); background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 22px 22px; transition: border-color .15s, background-color .15s; }
.drop-zone:hover, .drop.over .drop-zone { border-color: var(--accent); background-color: var(--accent-2); }
.drop-zone svg { width: 54px; height: 54px; color: var(--accent); }
.drop-zone strong { display: block; font: 700 1.35rem/1.2 var(--display); margin: 10px 0 4px; }
.drop-foot { display: flex; justify-content: space-between; gap: 12px; padding: 12px 4px 2px; font-size: .82rem; color: var(--ink-3); flex-wrap: wrap; }
.drop-foot span::before { content: "■ "; color: var(--ok); }
.progress { font-family: var(--mono); font-size: .9rem; color: var(--ink-2); }

/* -------------------------------------------------------------- sections */
.band { padding: 64px 0; border-top: 1px solid var(--line); }
.band.paper { background: var(--paper); }
.head { max-width: 680px; margin-bottom: 30px; }
.head .tag { font: 500 .78rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 12px; }
.cols3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.cols2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.cols4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 900px) { .cols3, .cols4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .cols3, .cols2, .cols4 { grid-template-columns: 1fr; } }
.tile { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.band.paper .tile { background: var(--paper-2); }
.tile .n { font: 500 .8rem/1 var(--mono); color: var(--ink-3); display: block; margin-bottom: 14px; }
.tile p:last-child { margin-bottom: 0; }
.fmt { display: flex; flex-direction: column; gap: 6px; }
.fmt .ext { font: 500 1.6rem/1 var(--mono); letter-spacing: -.02em; }
.fmt .who { font-size: .9rem; color: var(--ink-2); }
.badge { display: inline-block; font: 600 .72rem/1 var(--body); text-transform: uppercase; letter-spacing: .06em; padding: 5px 8px; border-radius: 6px; background: var(--accent-2); color: var(--accent); width: fit-content; }
.badge.free { background: var(--ok-bg); color: var(--ok); }

/* proof illustration */
.proof { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 40px; align-items: center; }
@media (max-width: 900px) { .proof { grid-template-columns: 1fr; } }
.chain { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; font-size: .9rem; }
.chain .r { display: grid; grid-template-columns: 64px minmax(0, 1fr) 92px 100px 28px; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--line-2); align-items: center; }
.chain .r:first-child { border-top: 0; background: var(--paper-2); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); }
.chain .r .num { text-align: right; }
.chain .r.hit { background: var(--mark-soft); }
.chain .ok { color: var(--ok); font-weight: 700; text-align: center; }
.chain .no { color: var(--bad); font-weight: 700; text-align: center; }
.chain .why { padding: 10px 14px; font-size: .82rem; color: var(--bad); background: var(--bad-bg); }

/* pricing */
.passes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 980px) { .passes { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .passes { grid-template-columns: 1fr; } }
.pass { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.pass.pick { border: 2px solid var(--accent); }
.pass .price { font: 700 2.3rem/1 var(--display); letter-spacing: -.03em; }
.pass .price small { font: 500 .9rem var(--body); color: var(--ink-2); letter-spacing: 0; }
.pass ul { margin: 4px 0 8px; padding-left: 18px; color: var(--ink-2); font-size: .92rem; }
.pass .btn { margin-top: auto; }
.ticket-edge { height: 10px; margin: 4px -22px; background: radial-gradient(circle at 5px 5px, var(--bg) 4px, transparent 4.5px) 0 0 / 14px 10px repeat-x; }

/* FAQ */
.qa details { border-top: 1px solid var(--line); padding: 4px 0; }
.qa details:last-child { border-bottom: 1px solid var(--line); }
.qa summary { cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; font: 500 1.2rem/1 var(--mono); color: var(--ink-3); }
.qa details[open] summary::after { content: "–"; }
.qa details p { color: var(--ink-2); max-width: 70ch; }

/* prose pages */
.page-head { padding: 48px 0 24px; }
.prose { max-width: 760px; padding-bottom: 64px; }
.prose h2 { margin-top: 1.8em; font-size: 1.5rem; }
.prose h3 { margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }
.toc { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.toc a { font-size: .9rem; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink); background: var(--paper); }
.callout { background: var(--paper); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 0; padding: 14px 16px; margin: 18px 0; }
.layouts { display: grid; gap: 14px; }
.layout-card { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.layout-card pre { margin: 10px 0 0; overflow-x: auto; font: .78rem/1.5 var(--mono); background: var(--paper-2); border: 1px solid var(--line-2); border-radius: 8px; padding: 10px 12px; color: var(--ink-2); }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: .9rem; color: var(--ink-2); }
.foot .shell { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); gap: 28px; }
.foot h4 { font: 600 .78rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin: 4px 0 12px; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 6px; }
.foot a { color: var(--ink-2); text-decoration: none; }
.foot a:hover { color: var(--ink); }
@media (max-width: 700px) { .foot .shell { grid-template-columns: 1fr 1fr; } .foot .about { grid-column: 1 / -1; } }

/* ------------------------------------------------------------ workspace */
body.working .marketing { display: none; }
.ws { display: none; padding: 18px 0 40px; }
body.working .ws { display: block; }
.ws .shell { max-width: 1440px; }
.ws-top { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 12px; }
.files { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; min-width: 0; }
.file-tab { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 10px; padding: 7px 10px; font: 500 .85rem/1.2 var(--body); cursor: pointer; color: var(--ink); max-width: 280px; }
.file-tab .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-tab[aria-selected="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.file-tab.all { font-weight: 600; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--ink-3); }
.dot.proven { background: var(--ok); } .dot.partial { background: var(--warn); } .dot.mismatch { background: var(--bad); } .dot.failed { background: var(--bad); }

.verdict { display: flex; gap: 14px; align-items: flex-start; border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; border: 1px solid var(--line); background: var(--paper); }
.verdict .big { font: 700 1.05rem/1.3 var(--display); }
.verdict.proven { background: var(--ok-bg); border-color: transparent; }
.verdict.proven .big { color: var(--ok); }
.verdict.partial, .verdict.unchecked { background: var(--warn-bg); border-color: transparent; }
.verdict.partial .big, .verdict.unchecked .big { color: var(--warn); }
.verdict.mismatch, .verdict.failed { background: var(--bad-bg); border-color: transparent; }
.verdict.mismatch .big, .verdict.failed .big { color: var(--bad); }
.verdict .stats { display: flex; gap: 18px; flex-wrap: wrap; font-size: .88rem; color: var(--ink-2); margin-top: 4px; }
.verdict .stats b { font-family: var(--mono); color: var(--ink); font-weight: 500; }
.verdict .jumps { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }
.verdict .jumps button { font: 500 .8rem var(--mono); border: 1px solid currentColor; background: none; color: var(--bad); border-radius: 6px; padding: 3px 7px; cursor: pointer; }

.split { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 12px; align-items: start; }
@media (max-width: 1000px) { .split { grid-template-columns: 1fr; } }
.grid-wrap { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: auto; max-height: calc(100vh - 230px); min-height: 320px; }
table.tx { width: 100%; border-collapse: collapse; font-size: .86rem; }
table.tx th { position: sticky; top: 0; background: var(--paper-2); text-align: left; font: 600 .72rem/1 var(--body); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); padding: 10px 8px; border-bottom: 1px solid var(--line); z-index: 1; }
table.tx td { padding: 6px 8px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
table.tx .num { text-align: right; white-space: nowrap; }
table.tx td.i { color: var(--ink-3); font: .75rem var(--mono); width: 34px; }
table.tx td.d { font-family: var(--mono); white-space: nowrap; width: 96px; }
table.tx tr { cursor: pointer; }
table.tx tr:hover td { background: var(--paper-2); }
table.tx tr.sel td { background: var(--mark-soft); }
table.tx tr.broken td { box-shadow: inset 0 -1px 0 var(--bad); }
table.tx tr.broken td.c { color: var(--bad); }
table.tx td.c { width: 24px; text-align: center; color: var(--ok); }
table.tx td.c.q { color: var(--ink-3); }
table.tx td.out { color: var(--ink); }
table.tx td.in { color: var(--ok); }
table.tx td[contenteditable="true"] { outline: 2px solid var(--accent); background: var(--paper); border-radius: 4px; }
table.tx td.inferred { color: var(--ink-3); }
.edited { text-decoration: underline dotted var(--accent); }

.viewer { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; position: sticky; top: 72px; }
.viewer-bar { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: .85rem; color: var(--ink-2); }
.viewer-bar .grow { flex: 1; }
.viewer-bar button { border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 6px; padding: 4px 9px; cursor: pointer; font: inherit; }
.page-box { position: relative; overflow: auto; max-height: calc(100vh - 280px); background: var(--paper-2); }
.page-box canvas { display: block; width: 100%; height: auto; }
.hl { position: absolute; background: var(--mark-soft); outline: 2px solid var(--mark); border-radius: 3px; pointer-events: none; transition: top .15s, height .15s; mix-blend-mode: multiply; }
:root[data-theme="dark"] .hl { mix-blend-mode: normal; }

.exports { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0 0; padding: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; }
.exports .lbl { font: 600 .78rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-right: 4px; }
.exports .grow { flex: 1; }
.leftovers { margin-top: 12px; font-size: .85rem; color: var(--ink-2); }
.leftovers summary { cursor: pointer; }
.leftovers li { font-family: var(--mono); font-size: .78rem; }

/* dialog */
dialog { border: 1px solid var(--line); border-radius: 16px; padding: 0; background: var(--paper); color: var(--ink); width: min(520px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(8, 12, 22, .55); }
dialog .in { padding: 24px; }
dialog h2 { font-size: 1.4rem; }
dialog form.pass-form { display: flex; gap: 8px; margin-top: 12px; }
dialog input, .field { flex: 1; min-width: 0; font: .9rem var(--mono); padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper-2); color: var(--ink); }
.msg { min-height: 1.4em; font-size: .88rem; margin: 8px 0 0; }
.msg.ok { color: var(--ok); } .msg.bad { color: var(--bad); }
dialog .x { float: right; border: 0; background: none; font-size: 1.3rem; line-height: 1; color: var(--ink-3); cursor: pointer; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: .9rem; z-index: 50; opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: 1; }
.after { margin-top: 18px; }
.after-sm { margin-top: 12px; }
.verdict .grow { flex: 1; }
.layouts { grid-template-columns: minmax(0, 1fr); }
.layout-card { min-width: 0; }

.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 760px) { .faq-grid { grid-template-columns: minmax(0, 1fr); } }
.faq { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.faq h3 { margin-bottom: 8px; }
.faq p { margin: 0; color: var(--ink-2); font-size: .95rem; }
.pass-chip { text-decoration: none; }
.pass p { margin: 0; }

/* term picker */
.term { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin-bottom: 16px; }
.term-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.term-head label { font: 700 1.15rem/1 var(--display); }
.term-input { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.term-input input { width: 76px; font: 600 1.1rem var(--mono); text-align: center; padding: 8px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper-2); color: var(--ink); }
.term-quick { display: flex; flex-wrap: wrap; gap: 6px; margin-left: auto; }
.term-quick button { font: 500 .85rem var(--body); padding: 7px 11px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer; }
.term-quick button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
#months-range { width: 100%; margin: 16px 0 6px; accent-color: var(--accent); }
.term-scale { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 4px; font: .74rem/1.3 var(--mono); color: var(--ink-3); }
.term-scale span { border-left: 1px solid var(--line); padding-left: 6px; }
@media (max-width: 620px) { .term-scale { grid-template-columns: repeat(3, minmax(0, 1fr)); } .term-quick { margin-left: 0; } }
.pass .save { color: var(--ok); min-height: 1.3em; font-weight: 500; }
.term-input select { font: 600 .95rem var(--body); padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper-2); color: var(--ink); }

/* checkout */
.checkout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 20px; align-items: start; padding-bottom: 48px; }
@media (max-width: 860px) { .checkout { grid-template-columns: minmax(0, 1fr); } .co-sum { order: -1; } }
.co-main { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 22px; display: flex; flex-direction: column; gap: 18px; }
.co-plans { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.co-plans legend, .co-row label { font: 600 .9rem var(--body); margin-bottom: 8px; display: block; padding: 0; }
@media (max-width: 560px) { .co-plans { grid-template-columns: minmax(0, 1fr); } }
.co-plan { position: relative; display: block; cursor: pointer; }
.co-plan input { position: absolute; opacity: 0; }
.co-plan span { display: flex; flex-direction: column; gap: 2px; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--paper-2); }
.co-plan small { color: var(--ink-2); }
.co-plan input:checked + span { border: 2px solid var(--accent); padding: 11px 13px; background: var(--accent-2); }
.co-plan input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.co-row .field { width: 100%; }
.co-extend summary { cursor: pointer; font-size: .9rem; color: var(--ink-2); }
.co-extend .field { width: 100%; margin-top: 6px; }
.co-pay { min-height: 48px; }
.co-sum { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 22px; position: sticky; top: 76px; }
.co-total { font: 700 2.6rem/1 var(--display); letter-spacing: -.03em; margin: 6px 0 8px; }
.co-sum ul { padding-left: 18px; margin: 12px 0 0; }
.co-done, .co-pending { padding-bottom: 48px; }
.key-box { width: 100%; font-size: .85rem; resize: none; margin: 8px 0 12px; word-break: break-all; }
.co-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.resend { display: flex; flex-wrap: wrap; gap: 8px; align-content: start; }
.resend .msg { flex-basis: 100%; }
a.btn[data-buy] { text-align: center; }
.co-sum .save { color: var(--ok); font-weight: 500; }

/* ===================================================== tech theme layer */
::selection { background: rgba(34, 211, 238, .3); color: #fff; }
h1, h2, h3 { letter-spacing: -.035em; font-weight: 650; }
h1 { font-weight: 700; }
.muted, .lede { color: var(--ink-2); }

/* bar */
.bar { background: rgba(5, 7, 13, .72); backdrop-filter: blur(14px) saturate(1.4); border-bottom: 1px solid var(--line); }
.brand { font-weight: 650; letter-spacing: -.03em; }
.brand b { font-weight: inherit; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.links a:hover, .links a[aria-current="page"] { background: rgba(120, 150, 210, .08); color: #fff; }
.pass-chip { background: rgba(120, 150, 210, .06); border-color: var(--line); font-family: var(--mono); font-size: .78rem; letter-spacing: .02em; }
.pass-chip.on { border-color: rgba(52, 211, 153, .5); color: var(--ok); box-shadow: 0 0 18px -6px rgba(52, 211, 153, .6); }
@media (max-width: 760px) { .links { background: var(--paper-solid); } }

/* buttons */
.btn { background: rgba(120, 150, 210, .06); border-color: var(--line); color: var(--ink); backdrop-filter: blur(6px); }
.btn:hover { border-color: rgba(34, 211, 238, .5); box-shadow: 0 0 20px -8px rgba(34, 211, 238, .6); }
.btn.primary { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 8px 28px -10px rgba(99, 102, 241, .8); }
.btn.primary:hover { filter: brightness(1.12); box-shadow: 0 10px 34px -8px rgba(34, 211, 238, .7); }
.btn[disabled] { box-shadow: none; }

/* hero */
.kicker { color: var(--accent); }
.kicker b { background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.hero h1 mark { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding: 0; }
.facts li::before { content: "▸"; color: var(--accent); }

/* glass cards */
.drop, .tile, .pass, .faq, .chain, .term, .co-main, .co-sum, .layout-card, .grid-wrap, .viewer, .exports, .verdict, .callout, .file-tab {
  background: var(--paper); border-color: var(--line); backdrop-filter: blur(10px);
}
.band { border-top-color: var(--line-2); }
.band.paper { background: linear-gradient(180deg, rgba(14, 20, 36, .55), rgba(5, 7, 13, 0)); }
.band.paper .tile { background: var(--paper); }
.tile, .pass, .faq { transition: border-color .2s, box-shadow .2s, transform .2s; }
.tile:hover, .pass:hover, .faq:hover { border-color: rgba(34, 211, 238, .35); box-shadow: 0 0 0 1px rgba(34, 211, 238, .08), 0 18px 40px -24px rgba(34, 211, 238, .35); }
.pass.pick { border: 1px solid transparent; background: linear-gradient(var(--paper-solid), var(--paper-solid)) padding-box, var(--grad) border-box; box-shadow: 0 20px 50px -26px rgba(99, 102, 241, .8); }
.head .tag, .tile .n, .foot h4, .exports .lbl { color: var(--accent); }
.badge { background: var(--accent-2); color: var(--accent); border: 1px solid rgba(34, 211, 238, .3); }
.badge.free { border-color: rgba(52, 211, 153, .3); }
.fmt .ext { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ticket-edge { background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px) center / 100% 1px no-repeat; height: 1px; margin: 8px -22px; }
.price, .co-total { font-family: var(--display); }

/* drop zone: instrument screen with a scanning line */
.drop { box-shadow: 0 30px 80px -40px rgba(34, 211, 238, .35); }
.drop-zone { position: relative; overflow: hidden; background-color: rgba(5, 9, 18, .8); border: 1px dashed rgba(34, 211, 238, .35); }
.drop-zone::after { content: ""; position: absolute; left: 0; right: 0; height: 80px; top: -80px; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, .14) 85%, rgba(34, 211, 238, .55) 100%);
  border-bottom: 1px solid rgba(34, 211, 238, .7); animation: scan 3.6s cubic-bezier(.5, 0, .5, 1) infinite; }
@keyframes scan { to { top: 100%; } }
.drop-zone:hover, .drop.over .drop-zone { border-color: var(--accent); background-color: rgba(34, 211, 238, .06); }
.drop-zone svg { color: var(--accent); filter: drop-shadow(0 0 10px rgba(34, 211, 238, .6)); }
.drop-foot span::before { color: var(--accent); }
@media (prefers-reduced-motion: reduce) { .drop-zone::after, .kicker b { animation: none; display: none; } }

/* proof table */
.chain .r:first-child { background: rgba(120, 150, 210, .05); }
.chain .r.hit { background: rgba(251, 113, 133, .08); }
.chain .why { background: var(--bad-bg); }

/* inputs, dialog */
.field, dialog input, .term-input input, .term-input select { background: rgba(5, 9, 18, .8); border-color: var(--line); color: var(--ink); }
.field:focus, dialog input:focus, .term-input input:focus { outline: none; border-color: var(--accent); box-shadow: var(--glow); }
dialog { background: var(--paper-solid); border-color: var(--line); box-shadow: 0 30px 90px -30px rgba(34, 211, 238, .4); }
dialog::backdrop { background: rgba(2, 4, 10, .7); backdrop-filter: blur(4px); }
.toast { background: var(--paper-solid); color: var(--ink); border: 1px solid rgba(34, 211, 238, .4); box-shadow: var(--glow); }
.term-quick button { background: rgba(120, 150, 210, .06); border-color: var(--line); color: var(--ink); }
.term-quick button[aria-pressed="true"] { background: var(--grad); color: #fff; border-color: transparent; }
.co-plan span { background: rgba(5, 9, 18, .6); border-color: var(--line); }
.co-plan input:checked + span { border-color: var(--accent); background: var(--accent-2); box-shadow: var(--glow); }
.qa summary::after { color: var(--accent); }
.toc a { background: rgba(120, 150, 210, .06); border-color: var(--line); color: var(--ink); }
.layout-card pre { background: rgba(5, 9, 18, .85); border-color: var(--line-2); color: #a5f3fc; }
.callout { border-left-color: var(--accent); }

/* workspace */
table.tx th { background: var(--paper-solid); color: var(--ink-3); font-family: var(--mono); font-weight: 500; letter-spacing: .08em; }
table.tx tr:hover td { background: rgba(120, 150, 210, .05); }
table.tx tr.sel td { background: rgba(34, 211, 238, .12); }
table.tx td.d, table.tx .num { font-family: var(--mono); font-size: .84rem; }
.file-tab[aria-selected="true"] { border-color: var(--accent); box-shadow: var(--glow); }
.page-box { background: #0b1120; }
.hl { background: rgba(34, 211, 238, .25); outline: 2px solid #06b6d4; mix-blend-mode: multiply; }
.verdict.proven { background: var(--ok-bg); border: 1px solid rgba(52, 211, 153, .3); }
.verdict.partial, .verdict.unchecked { border: 1px solid rgba(251, 191, 36, .3); }
.verdict.mismatch, .verdict.failed { border: 1px solid rgba(251, 113, 133, .35); }

/* footer */
.foot { border-top-color: var(--line-2); background: linear-gradient(0deg, rgba(14, 20, 36, .6), transparent); }
.page-inner { position: relative; }