/*
 * A/B admin – vizuální systém.
 * Varianta A je grafitová, varianta B indigová. Tyto dvě barvy se používají
 * jen pro data variant, ovládání rozhraní je černobílé.
 */
:root {
  --paper: #F2F3EF;
  --surface: #FFFFFF;
  --ink: #15171A;
  --ink-2: #4A505A;
  --ink-3: #6E7480;
  --rule: #D9DCD4;
  --rule-soft: #E9EBE5;
  --a: #6B7280;
  --a-soft: #E3E5E8;
  --b: #3D3BD6;
  --b-soft: #E6E6FB;
  --up: #0F7B4A;
  --down: #B42318;
  --warn: #8A5A00;
  --warn-soft: #FBF1DC;
  --bad-soft: #FCEBE9;

  --display: 'Schibsted Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --body: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  --r: 8px;
}

* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.5 var(--body); -webkit-font-smoothing: antialiased; }
a { color: var(--ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--b); }
p { margin: 0; }
h1, h2, h3 { font-family: var(--display); margin: 0; letter-spacing: -0.02em; }
h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; line-height: 1.05; }
h2 { font-size: 19px; font-weight: 700; }
h3 { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
code, .mono { font-family: var(--mono); font-size: 13px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--b); outline-offset: 2px; }

/* ---------- Horní lišta ---------- */

.bar { background: var(--ink); color: #F2F3EF; }
.bar-in { max-width: 1240px; margin: 0 auto; padding: 0 24px; min-height: 60px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; }
.brand:hover { color: inherit; }
.brand-mark { display: inline-flex; width: 22px; height: 22px; border-radius: 4px; overflow: hidden; }
.brand-mark span:first-child { flex: 1; background: var(--a); }
.brand-mark span:last-child { flex: 1; background: var(--b); }
.brand-name { font-family: var(--display); font-weight: 800; font-size: 17px; letter-spacing: -0.02em; }
.project { min-height: 34px; padding: 0 28px 0 10px; border-radius: 6px; border: 1px solid #3A3E45; background: #1F2226; color: inherit; font: 500 14px var(--body); }
.tabs { display: flex; gap: 2px; margin-right: auto; }
.tabs a { display: inline-flex; align-items: center; min-height: 60px; padding: 0 12px; color: #B9BDC4; text-decoration: none; font-weight: 600; font-size: 15px; border-bottom: 2px solid transparent; }
.tabs a:hover { color: #fff; }
.tabs a.on { color: #fff; border-bottom-color: #fff; }
.health { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: #B9BDC4; }
.health strong { color: #fff; font-weight: 600; }
.health-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--a); flex: none; }
.health-dot.live { background: #3BD18A; box-shadow: 0 0 0 0 rgba(59, 209, 138, .6); animation: ping 2.4s ease-out infinite; }
.health-dot.stale { background: #FF6B5B; }
.logout { color: #B9BDC4; font-size: 14px; text-decoration: none; }
.logout:hover { color: #fff; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(59, 209, 138, .55); } 70%, 100% { box-shadow: 0 0 0 8px rgba(59, 209, 138, 0); } }
@media (max-width: 760px) {
  .bar-in { padding: 10px 16px; }
  .tabs { order: 5; width: 100%; margin: 0; overflow-x: auto; }
  .tabs a { min-height: 44px; }
}

/* ---------- Stránka ---------- */

.page { max-width: 1240px; margin: 0 auto; padding: 40px 24px 96px; display: flex; flex-direction: column; gap: 28px; outline: none; }
@media (max-width: 760px) { .page { padding: 28px 16px 72px; } }

.head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px 24px; }
.head p { color: var(--ink-2); margin-top: 8px; }
.back { display: inline-block; font-size: 14px; color: var(--ink-2); text-decoration: none; margin-bottom: 14px; }
.back:hover { color: var(--ink); }
.meta { font-family: var(--mono); font-size: 13px; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 10px; }

.panel { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); }
.panel-pad { padding: 22px 24px; }
@media (max-width: 760px) { .panel-pad { padding: 18px 16px; } }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.muted { color: var(--ink-2); }
.small { font-size: 14px; }
.caption { font-size: 13px; color: var(--ink-3); }

/* ---------- Tlačítka ---------- */

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 0 18px; border-radius: 6px; border: 1px solid var(--rule); background: var(--surface); color: var(--ink); font: 600 15px var(--body); cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--ink); color: var(--ink); }
.btn-primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-primary:hover { background: #2C3036; border-color: #2C3036; color: #fff; }
.btn-danger { color: var(--down); }
.btn-danger:hover { border-color: var(--down); color: var(--down); }
.btn-quiet { border-color: transparent; background: transparent; padding: 0 10px; min-height: 34px; font-size: 14px; color: var(--ink-2); }
.btn-quiet:hover { color: var(--down); border-color: transparent; }
.btn-tag { min-height: 34px; padding: 0 12px; font-size: 14px; border-style: dashed; }
.btn-tag:hover { border-style: solid; }

/* ---------- Stav testu ---------- */

.status { display: inline-flex; align-items: center; gap: 7px; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); white-space: nowrap; }
.status::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.status-running { color: var(--b); }
.status-paused { color: var(--warn); }
.status-finished { color: var(--up); }
.status-draft { color: var(--ink-3); }
.status-draft::before { background: transparent; border: 1.5px solid currentColor; }

/* ---------- Srovnávací pravítko (podpis rozhraní) ---------- */

.ruler { position: relative; display: grid; gap: 6px; }
.ruler-lane { position: relative; height: 18px; }
.ruler-lane::before { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--rule); }
.ruler-band { position: absolute; top: 3px; bottom: 3px; border-radius: 3px; }
.ruler-dot { position: absolute; top: 0; bottom: 0; width: 3px; margin-left: -1.5px; border-radius: 2px; }
.lane-a .ruler-band { background: var(--a-soft); }
.lane-a .ruler-dot { background: var(--a); }
.lane-b .ruler-band { background: var(--b-soft); }
.lane-b .ruler-dot { background: var(--b); }
.ruler-scale { display: flex; justify-content: space-between; font: 11px var(--mono); color: var(--ink-3); }
.ruler-key { font: 600 11px var(--mono); position: absolute; left: -22px; top: 1px; }
.lane-a .ruler-key { color: var(--a); }
.lane-b .ruler-key { color: var(--b); }
.ruler-lg .ruler-lane { height: 30px; }
.ruler-lg .ruler-band { top: 5px; bottom: 5px; }
.ruler-lg .ruler-key { font-size: 13px; top: 6px; left: -26px; }
.ruler-wrap { padding-left: 26px; }
.ruler-empty { font: 12px var(--mono); color: var(--ink-3); border-top: 1px dashed var(--rule); padding-top: 6px; }

/* ---------- Seznam testů ---------- */

.tests { list-style: none; margin: 0; padding: 0; }
.test { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(220px, 1fr) minmax(120px, .5fr); gap: 16px 32px; align-items: center; padding: 20px 24px; border-top: 1px solid var(--rule-soft); }
.test:first-child { border-top: 0; }
.test-name { font-family: var(--display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; text-decoration: none; }
.test-name::after { content: ''; position: absolute; inset: 0; }
.test { position: relative; }
.test:hover { background: #FAFAF8; }
.test-sub { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 6px; align-items: center; }
.test-result { text-align: right; }
.lift { font: 600 20px var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.lift.up { color: var(--up); }
.lift.down { color: var(--down); }
.lift.none { color: var(--ink-3); }
@media (max-width: 860px) {
  .test { grid-template-columns: 1fr; padding: 18px 16px; }
  .test-result { text-align: left; }
}
.empty { padding: 56px 24px; display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }

/* ---------- Detail ---------- */

.detail { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; align-items: start; }
.detail > * { min-width: 0; }
@media (max-width: 1000px) { .detail { grid-template-columns: minmax(0, 1fr); } }
.verdict { font-family: var(--display); font-weight: 700; font-size: clamp(22px, 2.6vw, 30px); line-height: 1.15; letter-spacing: -0.02em; max-width: 26ch; }
.verdict em { font-style: normal; color: var(--b); }
.verdict-note { color: var(--ink-2); max-width: 62ch; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 14px; color: var(--ink-2); }
.legend b { font-family: var(--mono); font-weight: 600; }
.legend .ka { color: var(--a); }
.legend .kb { color: var(--b); }

.aside { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 20px; }
@media (max-width: 1000px) { .aside { position: static; } }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0; font-size: 14px; }
.facts dt { color: var(--ink-3); }
.facts dd { margin: 0; font-family: var(--mono); font-size: 13px; word-break: break-word; }
.actions { display: flex; flex-direction: column; gap: 8px; }
.actions .btn { width: 100%; }

.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align: left; padding: 12px 14px; border-top: 1px solid var(--rule-soft); vertical-align: middle; }
thead th { border-top: 0; font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); }
td.num, th.num { text-align: right; }
tbody th { font-weight: 600; }
.primary-goal { font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--b); margin-left: 8px; }
.up { color: var(--up); }
.down { color: var(--down); }

/* ---------- Cíle ---------- */

.goal-list { list-style: none; margin: 0; padding: 0; }
.goal-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 16px; padding: 14px 0; border-top: 1px solid var(--rule-soft); }
.goal-row:first-child { border-top: 0; }
.goal-row > div:first-child { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.goal-row code { font-family: var(--mono); font-size: 12px; word-break: break-all; }
.goal-form { border-top: 1px solid var(--rule); padding-top: 18px; }

/* ---------- Zákazníci a účty ---------- */

[hidden] { display: none !important; }
.who { color: #B9BDC4; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; }
@media (max-width: 1100px) { .who { display: none; } }
.access { display: inline-block; margin-top: 4px; font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.access-edit { color: var(--b); }
.access-view { color: var(--ink-3); }
.shop-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.linklike { font: inherit; font-weight: 600; color: var(--ink); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.linklike:hover { color: var(--b); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--ink); }
.goal-row.is-off strong { color: var(--ink-3); text-decoration: line-through; }
.link-box { flex-basis: 100%; padding: 12px; border: 1px dashed var(--b); border-radius: 6px; background: var(--surface); }
.link-row { flex-wrap: nowrap; }
.link-row .input { min-width: 0; flex: 1; }

/* ---------- Formuláře ---------- */

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px 24px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.label { font-weight: 600; font-size: 14px; }
.hint { font-size: 13px; color: var(--ink-3); }
.input { width: 100%; min-height: 42px; padding: 8px 12px; border: 1px solid var(--rule); border-radius: 6px; font: 16px var(--body); background: var(--surface); color: var(--ink); }
.input:hover { border-color: #BFC3BA; }
.input:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px var(--b-soft); }
.input.mono { font-family: var(--mono); font-size: 14px; }
textarea.input { min-height: 96px; resize: vertical; font-family: var(--mono); font-size: 14px; line-height: 1.55; }
select.input { padding-right: 28px; }

.section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 22px; border-top: 1px solid var(--rule-soft); }

.changes { display: flex; flex-direction: column; gap: 12px; }
.change { border: 1px solid var(--rule); border-left: 3px solid var(--b); border-radius: 6px; padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; background: #FCFCFB; }
.change-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.change-kind { font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--b); }
.change-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; }
.change-fields .wide { grid-column: 1 / -1; }
.add-change { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.note { padding: 12px 16px; border-radius: 6px; font-size: 15px; }
.note-warn { background: var(--warn-soft); color: var(--warn); }
.note-bad { background: var(--bad-soft); color: var(--down); }
.note-bad ul { margin: 6px 0 0; padding-left: 20px; }

.snippet { margin: 0; padding: 16px 18px; border-radius: 6px; background: var(--ink); color: #E8EAE4; font: 14px/1.6 var(--mono); white-space: pre-wrap; word-break: break-all; }
.snippet .k { color: #8C8AF7; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); max-width: min(520px, calc(100vw - 32px)); padding: 12px 18px; border-radius: 6px; background: var(--ink); color: #fff; font-size: 15px; box-shadow: 0 10px 30px rgba(21, 23, 26, .25); }

/* ---------- Přihlášení ---------- */

.login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login-card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 20px; }
.login-card .brand-mark { width: 36px; height: 36px; border-radius: 6px; }
.login-card form { display: flex; flex-direction: column; gap: 10px; }
.login-error { color: var(--down); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
.panel > .section-title:first-child { padding-top: 0; border-top: 0; align-items: center; }