/* TesterSwap — "night shift": dark charcoal, flat cards, one lime accent. No frameworks. */

:root {
  --bg: #0f1216;
  --surface: #161a20;
  --surface-2: #1d222a;
  --border: #2a313b;
  --border-2: #3a4350;
  --text: #e8ecf1;
  --dim: #98a2b0;
  --lime: #c6f432;
  --lime-ink: #11160a;
  --ok: #5fd38d;
  --bad: #ff6b6b;
  --info: #7cc4ff;
  --radius: 10px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
}
a { color: var(--text); text-decoration-color: var(--border-2); text-underline-offset: 3px; }
a:hover { color: var(--lime); text-decoration-color: var(--lime); }
code { font: 0.86em var(--mono); background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; color: var(--text); word-break: break-all; }
::selection { background: var(--lime); color: var(--lime-ink); }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }
main.wrap { padding-top: 32px; padding-bottom: 72px; min-height: 70vh; }
.narrow { max-width: 520px; }
.muted { color: var(--dim); }
.small { font-size: 14px; }
.inline { display: inline; margin: 0; }

/* ---- Top bar ---------------------------------------------------------------- */
.top { position: sticky; top: 0; z-index: 5; background: rgba(15, 18, 22, 0.92); border-bottom: 1px solid var(--border); backdrop-filter: saturate(140%) blur(6px); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { font: 700 19px/1 var(--mono); text-decoration: none; letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px; }
.brand:hover { color: var(--text); }
.brand-mark {
  width: 20px; height: 20px; display: inline-block; border-radius: 4px;
  background:
    linear-gradient(var(--lime), var(--lime)) 0 0 / 8px 8px no-repeat,
    linear-gradient(var(--border-2), var(--border-2)) 12px 0 / 8px 8px no-repeat,
    linear-gradient(var(--border-2), var(--border-2)) 0 12px / 8px 8px no-repeat,
    linear-gradient(var(--border-2), var(--border-2)) 12px 12px / 8px 8px no-repeat;
}
.nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 15px; }
.nav a { text-decoration: none; color: var(--dim); padding: 7px 12px; border-radius: 8px; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.nav-cta { background: var(--lime) !important; color: var(--lime-ink) !important; font-weight: 700; margin-left: 4px; }
.nav-cta:hover { filter: brightness(1.08); }
.nav .inline .linklike { color: var(--dim); padding: 7px 12px; text-decoration: none; }
.linklike { background: none; border: 0; padding: 4px 0; font: inherit; color: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border-2); }
.linklike:hover { color: var(--lime); }
.danger { color: var(--bad) !important; }

/* ---- Type ------------------------------------------------------------------- */
.display { font: 800 clamp(38px, 7vw, 68px)/1.04 var(--sans); letter-spacing: -2px; margin: 10px 0 20px; }
.h1 { font: 800 clamp(28px, 4.2vw, 36px)/1.15 var(--sans); letter-spacing: -0.8px; margin: 0 0 8px; }
.h2 { font: 700 22px/1.3 var(--sans); letter-spacing: -0.3px; margin: 52px 0 16px; }
.h3 { font: 700 18px/1.3 var(--sans); margin: 0 0 12px; }
.kicker { display: inline-block; font: 600 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 1.2px; margin: 28px 0 0; color: var(--lime); border: 1px solid var(--border); background: var(--surface); padding: 7px 10px; border-radius: 999px; }
.hl { color: var(--lime); }
.lede { font-size: 18px; color: var(--dim); max-width: 600px; }

/* ---- Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-block; cursor: pointer;
  font: 700 15px/1 var(--sans);
  padding: 13px 20px; border: 1px solid var(--lime); border-radius: 9px;
  background: var(--lime); color: var(--lime-ink); text-decoration: none;
  transition: filter .12s, transform .08s;
}
.btn:hover { color: var(--lime-ink); filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-2); }
.btn-ghost:hover { color: var(--text); background: var(--surface-2); filter: none; }
.btn-sm { font-size: 14px; padding: 9px 14px; border-radius: 8px; }
.btn-wide { width: 100%; text-align: center; }
.btn-danger { background: transparent; color: var(--bad); border-color: var(--bad); }
.btn-danger:hover { background: rgba(255, 107, 107, 0.1); color: var(--bad); filter: none; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 10px; }

/* ---- Notes ------------------------------------------------------------------ */
.note { border: 1px solid var(--border); border-left-width: 3px; border-radius: var(--radius); padding: 12px 14px; margin: 0 0 20px; background: var(--surface); }
.note-ok { border-left-color: var(--ok); }
.note-info { border-left-color: var(--info); }
.note-bad { border-left-color: var(--bad); }
.callout { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; margin: 20px 0; background: var(--surface); }
.callout-ok { border-color: rgba(95, 211, 141, 0.45); background: rgba(95, 211, 141, 0.07); }
.callout-bad { border-color: rgba(255, 107, 107, 0.45); background: rgba(255, 107, 107, 0.07); }
.warn-line { color: var(--bad); font-weight: 600; margin: 10px 0 0; }
.ok-line { color: var(--ok); font-weight: 600; margin: 10px 0 0; }

/* ---- Landing ---------------------------------------------------------------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: center; padding: 8px 0 44px; }
.hero-art img { display: block; width: 100%; max-width: 580px; height: auto; margin-left: auto; }
.ico { display: block; color: var(--lime); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stats div { padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.stats b { display: block; font: 700 34px/1 var(--mono); color: var(--lime); }
.stats span { display: block; margin-top: 8px; font-size: 14px; color: var(--dim); }
.step-list { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.step-list li { counter-increment: s; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--dim); font-size: 15px; }
.step-list li b { color: var(--text); }
.step-list li { position: relative; }
.step-list li .ico { margin-bottom: 14px; }
.step-list li::before { content: "0" counter(s); position: absolute; top: 18px; right: 18px; font: 600 12px/1 var(--mono); color: var(--border-2); }
.rule-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.rule { padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.rule h3 { font: 700 17px/1.3 var(--sans); margin: 8px 0 6px; }
.rule p { margin: 0; font-size: 15px; color: var(--dim); }
.rule-no { font: 600 12px/1 var(--mono); color: var(--border-2); }
.rule-top { display: flex; justify-content: space-between; align-items: center; }
.rule-top .ico { width: 34px; height: 34px; padding: 6px; border-radius: 8px; background: rgba(198, 244, 50, 0.08); border: 1px solid rgba(198, 244, 50, 0.25); }

/* ---- Two-column pages (sign up, log in, list app, account) ---------------- */
.split { display: grid; grid-template-columns: minmax(0, 520px) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); align-items: start; }
.split .narrow { max-width: none; }
.side { position: sticky; top: 92px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); padding: clamp(18px, 3vw, 32px); }
.side img { display: block; width: 100%; height: auto; max-width: 460px; margin: 0 auto 18px; }
.side h2 { font: 700 19px/1.3 var(--sans); margin: 0 0 12px; }
.side ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.side ul li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start; color: var(--dim); font-size: 15px; }
.side ul li b { color: var(--text); }
.side ol { list-style: none; counter-reset: side; padding: 0; margin: 0; display: grid; gap: 14px; }
.side ol li { counter-increment: side; position: relative; padding-left: 36px; color: var(--dim); font-size: 15px; line-height: 1.55; }
.side ol li::before { content: counter(side); position: absolute; left: 0; top: 1px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--lime); color: var(--lime-ink); font: 700 12px/1 var(--mono); }
.side ol li b { color: var(--text); }
.form-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-pair .form { margin: 0; }
.faq details { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: 14px 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq summary::marker { color: var(--lime); }
.faq p { margin: 10px 0 0; color: var(--dim); }

/* ---- Board ------------------------------------------------------------------ */
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head p { margin: 0; }
.board { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.row { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: border-color .12s; }
.row:hover { border-color: var(--border-2); }
.row.is-full { opacity: .5; }
.row-main { min-width: 0; }
.row-title { font: 700 18px/1.3 var(--sans); text-decoration: none; }
.row-meta { display: block; font: 12.5px/1.4 var(--mono); color: var(--dim); margin-top: 4px; }
.row-desc { margin: 8px 0 0; color: var(--dim); font-size: 15px; overflow-wrap: anywhere; }
.row-side { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; flex-shrink: 0; }
.count { font: 13px var(--mono); color: var(--dim); }
.count b { font-size: 17px; color: var(--text); }
.empty { display: flex; gap: 24px; align-items: center; border: 1px dashed var(--border-2); border-radius: var(--radius); padding: 24px; background: var(--surface); }
.empty img { width: 220px; height: auto; flex-shrink: 0; }
.empty p { margin: 0 0 8px; }

/* The 12 seats and 14 days */
.meter { display: inline-grid; grid-template-columns: repeat(12, 12px); gap: 4px; vertical-align: middle; }
.meter i { width: 12px; height: 12px; border-radius: 3px; background: var(--surface-2); border: 1px solid var(--border-2); }
.meter i.on { background: var(--lime); border-color: var(--lime); }
.ticks { display: inline-flex; gap: 3px; vertical-align: middle; }
.ticks i { width: 5px; height: 14px; border-radius: 2px; background: var(--surface-2); border: 1px solid var(--border-2); }
.ticks i.on { background: var(--lime); border-color: var(--lime); }

.tag { display: inline-block; font: 600 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .6px; border: 1px solid var(--border-2); border-radius: 999px; padding: 6px 10px; text-decoration: none; color: var(--dim); background: var(--surface-2); }
.tag-ok { border-color: rgba(95, 211, 141, 0.5); color: var(--ok); background: rgba(95, 211, 141, 0.08); }
.tag-bad { border-color: rgba(255, 107, 107, 0.5); color: var(--bad); background: rgba(255, 107, 107, 0.08); }

/* ---- App page --------------------------------------------------------------- */
.crumbs { margin: 0 0 16px; font: 13px var(--mono); }
.crumbs a { text-decoration: none; color: var(--dim); }
.crumbs a:hover { color: var(--lime); }
.app-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; }
.app-head p { margin: 0; }
.app-count { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.desc { font-size: 17px; color: var(--dim); max-width: 680px; overflow-wrap: anywhere; }
.howto { list-style: none; counter-reset: h; padding: 0; margin: 0 0 24px; max-width: 680px; display: grid; gap: 8px; }
.howto li { counter-increment: h; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.howto li span::before { content: counter(h); display: inline-grid; place-items: center; width: 22px; height: 22px; margin-right: 10px; border-radius: 50%; background: var(--lime); color: var(--lime-ink); font: 700 12px/1 var(--mono); }
.owner-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.copybox { display: block; margin-top: 18px; font-size: 14px; font-weight: 600; }
.copybox textarea { margin-top: 6px; }

.table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table th { font: 600 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .6px; color: var(--dim); background: var(--surface-2); }
.table tr.dim td { color: var(--dim); }

/* ---- Desk ------------------------------------------------------------------- */
.desk-top { display: grid; grid-template-columns: 1fr 2fr; gap: 12px; margin-top: 20px; }
.tile { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: 20px; }
.tile-label { display: block; font: 600 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .8px; color: var(--dim); margin-bottom: 12px; }
.tile-num { display: block; font: 700 52px/1 var(--mono); color: var(--lime); }
.tile p { margin: 0 0 10px; }
.tile-app { font: 700 19px/1.3 var(--sans); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.tests { list-style: none; padding: 0; margin: 0; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.tests li { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 13px 16px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tests li:last-child { border-bottom: 0; }
.tests li > a:first-child { font-weight: 600; text-decoration: none; }
.tests-prog { display: flex; align-items: center; gap: 8px; color: var(--dim); }

/* ---- Forms ------------------------------------------------------------------ */
.form { display: grid; gap: 16px; margin: 22px 0 28px; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.form label { display: grid; gap: 7px; font-weight: 600; font-size: 14.5px; }
.form .check { grid-template-columns: auto 1fr; align-items: start; font-weight: 400; gap: 10px; color: var(--dim); }
.form-join { max-width: 560px; }
.form-danger { border-color: rgba(255, 107, 107, 0.4); }
input[type=email], input[type=password], input:not([type]), textarea {
  width: 100%; font: 16px var(--sans); color: var(--text);
  padding: 11px 13px; border: 1px solid var(--border-2); border-radius: 8px; background: var(--bg);
  transition: border-color .12s, box-shadow .12s;
}
input::placeholder, textarea::placeholder { color: #5f6875; }
textarea { resize: vertical; font-family: var(--sans); }
input:focus, textarea:focus { outline: none; border-color: var(--lime); box-shadow: 0 0 0 3px rgba(198, 244, 50, 0.18); }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--lime); margin: 2px 0 0; }
.hint { font-weight: 400; font-size: 13px; color: var(--dim); }
.err { color: var(--bad); font-weight: 600; font-size: 13.5px; }
.prose ul { padding-left: 20px; color: var(--dim); }
.prose li { margin-bottom: 6px; }
.prose li b { color: var(--text); }
.prose p { color: var(--dim); }

/* ---- Footer ----------------------------------------------------------------- */
.foot { border-top: 1px solid var(--border); }
.foot-in { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 22px; padding-bottom: 22px; font-size: 14px; color: var(--dim); }
.foot a { color: var(--dim); }

/* ---- Phones ----------------------------------------------------------------- */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; }
  .hero-art img { max-width: 440px; margin: 8px auto 0; }
  .split { grid-template-columns: 1fr; }
  .side { position: static; }
  .side img { max-width: 300px; }
  .form-pair { grid-template-columns: 1fr; }
  .step-list { grid-template-columns: 1fr 1fr; }
  .rule-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .empty { flex-direction: column; align-items: flex-start; }
  .empty img { width: 180px; }
  .nav { gap: 2px; font-size: 14px; }
  .nav a, .nav .inline .linklike { padding: 7px 9px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 8px; }
  .step-list, .rule-grid { grid-template-columns: 1fr; gap: 8px; }
  .row { flex-direction: column; align-items: stretch; gap: 14px; padding: 16px; }
  .row-side { flex-direction: row; align-items: center; justify-content: space-between; flex-wrap: wrap; }
  .meter { grid-template-columns: repeat(12, 11px); gap: 3px; }
  .meter i { width: 11px; height: 11px; }
  .app-head { align-items: stretch; }
  .app-count { align-items: flex-start; }
  .howto li { flex-direction: column; align-items: flex-start; }
  .desk-top { grid-template-columns: 1fr; }
  .form { padding: 16px; }
  .table thead { display: none; }
  .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
  .table tr { border-bottom: 1px solid var(--border); padding: 8px 0; }
  .table tr:last-child { border-bottom: 0; }
  .table td { border: 0; padding: 4px 14px; }
  .table td[data-label]::before { content: attr(data-label) ": "; font: 600 11.5px var(--mono); text-transform: uppercase; color: var(--dim); }
}