/* T-Trading brand — red & black on white. Receipts stay monochrome. */
:root {
  --tt-red: #C8102E;
  --tt-red-dark: #9E0C24;
  --tt-black: #111111;
  --tt-white: #FFFFFF;
  --tt-grey: #F4F4F4;
  --tt-line: #E2E2E2;
  --tt-muted: #6B6B6B;
  --tt-ok: #1E7B3A;
  --tt-warn: #A15C00;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 2px 8px rgba(0,0,0,.04);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--tt-black);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--tt-grey); font-size: 15px; line-height: 1.45; }
a { color: var(--tt-red); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .5rem; line-height: 1.2; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }
.muted { color: var(--tt-muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- Layout ---------- */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { background: var(--tt-black); color: var(--tt-white); padding: 1.25rem 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { display: block; padding: 0 1.25rem 1.25rem; border-bottom: 1px solid #2a2a2a; margin-bottom: .75rem; }
.sidebar .brand img { width: 100%; max-width: 180px; display: block; }
.nav a { display: flex; align-items: center; gap: .6rem; padding: .65rem 1.25rem; color: #d8d8d8; border-left: 3px solid transparent; }
.nav a:hover { background: #1c1c1c; color: var(--tt-white); text-decoration: none; }
.nav a.active { color: var(--tt-white); border-left-color: var(--tt-red); background: #1c1c1c; font-weight: 600; }
.nav .group { padding: 1rem 1.25rem .35rem; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: #8a8a8a; }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: var(--tt-white); border-bottom: 3px solid var(--tt-red); padding: .75rem 1.5rem; }
.topbar .who { display: flex; align-items: center; gap: .75rem; font-size: .9rem; }
.content { padding: 1.5rem; max-width: 1280px; width: 100%; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }

.menu-toggle { display: none; background: none; border: 0; font-size: 1.5rem; cursor: pointer; }
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: 240px; z-index: 50; transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: none; }
  .menu-toggle { display: inline-block; }
  .content { padding: 1rem; }
}

/* ---------- Components ---------- */
.card { background: var(--tt-white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; }
.card + .card { margin-top: 1rem; }
.grid { display: grid; gap: 1rem; }
.grid > .card + .card { margin-top: 0; }                 /* grid gap already spaces siblings */
.grid + .card, .grid + .grid, .card + .grid { margin-top: 1rem; }
.grid-2 { grid-template-columns: 2fr 1fr; }
.stats { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-bottom: 1rem; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

.stat .label { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--tt-muted); }
.stat .value { font-size: 1.75rem; font-weight: 700; margin-top: .25rem; }
.stat.alert .value { color: var(--tt-red); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .55rem 1rem; border-radius: 6px; border: 1px solid transparent; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none !important; white-space: nowrap; }
.btn-primary { background: var(--tt-red); color: var(--tt-white); }
.btn-primary:hover { background: var(--tt-red-dark); }
.btn-dark { background: var(--tt-black); color: var(--tt-white); }
.btn-ghost { background: transparent; color: var(--tt-black); border-color: var(--tt-line); }
.btn-ghost:hover { background: var(--tt-grey); }
.btn-sm { padding: .3rem .65rem; font-size: .85rem; }
.btn-block { width: 100%; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; background: var(--tt-white); }
table.data th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--tt-muted); background: #fafafa; border-bottom: 2px solid var(--tt-black); padding: .6rem .75rem; white-space: nowrap; }
table.data td { border-bottom: 1px solid var(--tt-line); padding: .6rem .75rem; vertical-align: top; }
table.data tr:hover td { background: #fcfcfc; }
table.data .empty { text-align: center; color: var(--tt-muted); padding: 2rem; }

.badge { display: inline-block; padding: .1rem .5rem; border-radius: 999px; font-size: .72rem; font-weight: 700; letter-spacing: .03em; background: var(--tt-grey); color: var(--tt-black); vertical-align: middle; }
.badge-red { background: #fde8eb; color: var(--tt-red); }
.badge-dark { background: var(--tt-black); color: var(--tt-white); }
.badge-ok { background: #e4f4e8; color: var(--tt-ok); }
.badge-warn { background: #fff1dc; color: var(--tt-warn); }

/* ---------- Forms ---------- */
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.field label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .3rem; }
.field .hint { font-size: .78rem; color: var(--tt-muted); margin-top: .25rem; }
input[type=text], input[type=password], input[type=number], input[type=search], input[type=file], input[type=date], select, textarea {
  width: 100%; padding: .55rem .7rem; border: 1px solid #cfcfcf; border-radius: 6px; font: inherit; background: var(--tt-white);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--tt-red); outline-offset: -1px; border-color: var(--tt-red); }
.field.has-error input, .field.has-error select { border-color: var(--tt-red); }
.field .error { color: var(--tt-red); font-size: .8rem; margin-top: .25rem; }
.check { display: flex; align-items: center; gap: .5rem; font-weight: 600; }
.toolbar { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.toolbar input[type=search] { max-width: 320px; }
.toolbar select { max-width: 220px; }
.actions { display: flex; gap: .5rem; justify-content: flex-end; margin-top: 1rem; }
fieldset { border: 1px solid var(--tt-line); border-radius: var(--radius); padding: 1rem; margin: 0 0 1rem; }
legend { font-weight: 700; padding: 0 .4rem; }

.flash { padding: .75rem 1rem; border-radius: 6px; margin-bottom: 1rem; border-left: 4px solid; background: var(--tt-white); box-shadow: var(--shadow); }
.flash-ok { border-color: var(--tt-ok); }
.flash-error { border-color: var(--tt-red); }
.flash ul { margin: .25rem 0 0; padding-left: 1.2rem; }

.pagination { display: flex; gap: .25rem; flex-wrap: wrap; margin-top: 1rem; align-items: center; }
.pagination a, .pagination span { padding: .35rem .7rem; border: 1px solid var(--tt-line); border-radius: 6px; background: var(--tt-white); color: var(--tt-black); font-size: .9rem; }
.pagination .current { background: var(--tt-black); color: var(--tt-white); border-color: var(--tt-black); }
.pagination .disabled { color: #bbb; }

/* ---------- Auth ---------- */
.auth { min-height: 100vh; display: grid; place-items: center; align-content: center; gap: 1rem; padding: 1rem; background: var(--tt-black); }
.auth .card { width: 100%; max-width: 380px; padding: 2rem; border-top: 4px solid var(--tt-red); }
.auth .logo { display: block; width: 100%; max-width: 240px; margin: 0 auto 1.5rem; }
.auth .field { margin-bottom: 1rem; }

pre.json { margin: 0; font-size: .78rem; white-space: pre-wrap; word-break: break-word; max-width: 420px; }
.toolbar input[type=date] { max-width: 180px; }
.inline-form { display: inline-block; margin: 0 .15rem; }

/* Dashboard */
.hero { font-size: 3rem; font-weight: 700; line-height: 1.1; margin: .15rem 0 .35rem; }
.delta { font-weight: 600; white-space: nowrap; }
.delta.up { color: var(--tt-ok); }
.delta.down { color: var(--tt-red); }
.chart-box { position: relative; height: 260px; }
.chart-table { margin-top: .75rem; }
.chart-table summary { cursor: pointer; color: var(--tt-muted); font-size: .9rem; }
.chart-table table { margin-top: .5rem; }
.nav a .badge { margin-left: auto; }

@media print {
  body { background: #fff; }
  .sidebar, .topbar, .no-print, .pagination { display: none !important; }
  .shell { display: block; }
  .content { padding: 0; max-width: none; }
  .card { box-shadow: none; border: 1px solid var(--tt-line); break-inside: avoid; }
}

/* ---- Site footer ---- */
.site-footer { display: flex; flex-wrap: wrap; gap: .5rem 1rem; justify-content: space-between; align-items: center;
  padding: 1rem 1.5rem 1.5rem; color: var(--tt-muted); font-size: .8rem; }
.site-footer a { color: inherit; }
.site-footer strong { color: var(--tt-black); }

/* ---- User manual ---- */
.manual { display: grid; grid-template-columns: 240px 1fr; gap: 1rem; align-items: start; }
.manual-toc { position: sticky; top: 1rem; display: flex; flex-direction: column; gap: .15rem; padding: 1rem; max-height: calc(100vh - 2rem); overflow: auto; }
.manual-toc strong { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--tt-muted); margin-bottom: .35rem; }
.manual-toc a { color: var(--tt-black); text-decoration: none; padding: .3rem .4rem; border-radius: 6px; font-size: .88rem; }
.manual-toc a:hover { background: var(--tt-grey, #f4f4f4); }
.manual-body > .card + .card { margin-top: 1rem; }
.manual-body h2 { margin: 0 0 .5rem; font-size: 1.25rem; scroll-margin-top: 1rem; }
.manual-body h3 { margin: 1rem 0 .35rem; font-size: .95rem; text-transform: uppercase; letter-spacing: .04em; color: var(--tt-muted); }
.manual-body p, .manual-body li { line-height: 1.55; }
.manual-body ol, .manual-body ul { margin: .35rem 0; padding-left: 1.25rem; }
.manual-body li + li { margin-top: .25rem; }
.manual-body .data td { vertical-align: top; }
.manual-body section { scroll-margin-top: 1rem; }
@media (max-width: 860px) { .manual { grid-template-columns: 1fr; } .manual-toc { position: static; max-height: none; } }
@media print {
  .sidebar, .topbar, .manual-toc, .page-head .toolbar, .site-footer a { display: none !important; }
  .manual { grid-template-columns: 1fr; } .card { box-shadow: none; border: 1px solid #ddd; page-break-inside: avoid; }
}
.powered { text-align: center; color: var(--tt-muted); font-size: .8rem; margin-top: 1rem; letter-spacing: .02em; }
.powered strong { color: var(--tt-black); font-weight: 800; }
/* Sign-in page has a black background: light text so the credit is readable. */
.auth .powered { color: #b5b5b5; margin: 0; }
.auth .powered strong { color: var(--tt-white); }

/* ---- UAT sign-off ---- */
.uat-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.uat-head .badge { margin-left: .4rem; }
.uat-bar { height: 6px; background: #eee; border-radius: 3px; margin-top: .5rem; overflow: hidden; }
.uat-bar span { display: block; height: 100%; background: var(--tt-ok); transition: width .3s; }
.uat-section-title { margin: 0; padding: .9rem 1.25rem .4rem; }
.uat-table td { vertical-align: top; }
.uat-table tr { border-left: 4px solid transparent; }
.uat-table tr.uat-pass { border-left-color: var(--tt-ok); }
.uat-table tr.uat-fail { border-left-color: var(--tt-red); background: #fff6f7; }
.uat-table tr.uat-na { border-left-color: #bbb; }
.uat-no { width: 2rem; color: var(--tt-muted); font-weight: 700; }
.uat-text { font-weight: 600; margin-bottom: .35rem; }
.uat-extra { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .25rem; }
.uat-extra input { flex: 1 1 14rem; min-width: 0; padding: .35rem .5rem; font-size: .85rem; }
.uat-extra input.uat-ref { flex: 0 1 11rem; }
.uat-actions { width: 1%; white-space: nowrap; text-align: right; }
.uat-choice { display: inline-flex; border: 1px solid #d5d5d5; border-radius: 8px; overflow: hidden; }
.uat-choice button { border: 0; background: #fff; padding: .45rem .75rem; font: inherit; font-weight: 700; font-size: .85rem; cursor: pointer; color: #555; }
.uat-choice button + button { border-left: 1px solid #d5d5d5; }
.uat-choice button.pass.on { background: var(--tt-ok); color: #fff; }
.uat-choice button.fail.on { background: var(--tt-red); color: #fff; }
.uat-choice button.na.on { background: #6b6b6b; color: #fff; }
.uat-choice button:disabled { opacity: .6; cursor: default; }
.uat-sig { height: 48px; max-width: 220px; }
.uat-sign { margin-top: 1rem; max-width: 600px; }
.uat-pad { display: block; width: 100%; max-width: 560px; height: auto; aspect-ratio: 560 / 180; border: 2px dashed #bbb; border-radius: 8px; background: #fff; touch-action: none; cursor: crosshair; }
@media (max-width: 700px) {
  .uat-actions { white-space: normal; text-align: left; }
  .uat-table tr { display: grid; grid-template-columns: 2rem 1fr; }
  .uat-table td.uat-actions { grid-column: 2; padding-top: 0; }
}
[x-cloak] { display: none !important; }
.uat-sign .field input { width: 100%; box-sizing: border-box; padding: .55rem .65rem; font-size: 1rem; }
.uat-sign .form-row { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }