/* QuantShop portal. Chart-paper surface, ink text, one illustrated plate as the focal point. */
:root {
  --paper: #edf1f3;
  --grid: #dbe3e8;
  --panel: #fafbfc;
  --ink: #15212b;
  --ink-soft: #47586a;
  --rule: #c8d2d9;
  --up: #0b7f6e;
  --down: #c0402a;
  --link: #1d5bbf;
  --on-ink: #fafbfc;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, "Iowan Old Style", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f161c; --grid: #19242d; --panel: #16212a; --ink: #e8eef2; --ink-soft: #a3b3c0;
    --rule: #2b3a46; --up: #3dc7ab; --down: #f27a62; --link: #82b3ff; --on-ink: #0f161c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px; background-position: -1px -1px;
  color: var(--ink); font: 1rem/1.55 var(--sans);
}
a { color: var(--link); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 3px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--on-ink); padding: .5rem .8rem; z-index: 10; }
.skip:focus { left: .5rem; top: .5rem; }

/* header */
.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem 1.5rem; flex-wrap: wrap;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--paper) 88%, transparent); border-bottom: 1px solid var(--rule);
}
.wordmark { font: 700 1.3rem/1 var(--serif); letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.auth-nav { display: flex; align-items: center; gap: .6rem .9rem; flex-wrap: wrap; }
.auth-nav form { margin: 0; }
.nav-link { color: var(--ink); text-decoration: none; padding: .35rem .1rem; border-bottom: 1.5px solid transparent; }
.nav-link:hover { border-bottom-color: var(--ink); }
.whoami { display: inline-flex; align-items: center; gap: .5rem; padding-right: .4rem; }
.whoami__name { font-weight: 650; }

/* role badges: always carry the word, never colour alone */
.badge { display: inline-block; padding: .08rem .55rem; border-radius: 999px; font-size: .82rem; font-weight: 650; line-height: 1.5; }
.badge--owner { background: var(--ink); color: var(--on-ink); }
.badge--manager { border: 1.5px solid var(--ink); color: var(--ink); }
.badge--user { background: var(--rule); color: var(--ink); }

/* buttons */
.btn {
  display: inline-block; font: 600 .95rem/1.2 var(--sans); padding: .6rem 1.05rem; border-radius: 5px; cursor: pointer;
  background: var(--ink); color: var(--on-ink); border: 1.5px solid var(--ink); text-decoration: none;
}
.btn:hover { background: color-mix(in srgb, var(--ink) 86%, var(--paper)); }
.btn--quiet { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--quiet:hover { background: color-mix(in srgb, var(--ink) 8%, transparent); }
.btn--danger { background: transparent; color: var(--down); border-color: var(--down); }
.btn--small { padding: .3rem .65rem; font-size: .85rem; }

/* page frame */
main { flex: 1; width: 100%; max-width: 62rem; margin: 0 auto; padding: clamp(1.5rem, 5vw, 3.5rem) clamp(1rem, 4vw, 2.5rem) 3rem; }
.site-footer { padding: 1.2rem clamp(1rem, 4vw, 2.5rem); border-top: 1px solid var(--rule); color: var(--ink-soft); font-size: .9rem; background: color-mix(in srgb, var(--paper) 88%, transparent); }

/* home */
.hero h1 { font: 700 clamp(2.3rem, 6vw, 3.9rem)/1.06 var(--serif); letter-spacing: -.02em; margin: 0 0 1rem; max-width: 18ch; text-wrap: balance; }
.hero p { font-size: 1.12rem; color: var(--ink-soft); max-width: 44ch; margin: 0 0 2.4rem; }

.plate { display: block; color: inherit; text-decoration: none; background: var(--panel); border: 1.5px solid var(--ink); border-radius: 6px; overflow: hidden; }
.plate:hover .plate__cta { text-decoration-thickness: 2.5px; }
.plate__art { display: block; width: 100%; height: auto; border-bottom: 1px solid var(--rule); }
.plate__body { display: grid; gap: .5rem 2rem; padding: 1.3rem clamp(1rem, 3vw, 1.8rem) 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 46rem) { .plate__body { grid-template-columns: 1.3fr 1fr; align-items: end; } }
.plate__title { font: 700 clamp(1.6rem, 3.4vw, 2.1rem)/1.15 var(--serif); margin: 0; letter-spacing: -.01em; }
.plate__desc { margin: .35rem 0 0; color: var(--ink-soft); max-width: 40ch; }
.plate__status { display: flex; flex-direction: column; gap: .35rem; }
.plate__state { display: flex; align-items: center; gap: .5rem; font-weight: 600; }
.plate__cta { font-weight: 650; color: var(--link); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1.5px; }
.icon { width: 1.05rem; height: 1.05rem; flex: none; fill: currentColor; }

/* chart in the plate */
.pl-grid { stroke: var(--grid); stroke-width: 1; fill: none; }
.pl-area { fill: var(--up); fill-opacity: .09; }
.pl-line { stroke: var(--ink); stroke-width: 3; fill: none; stroke-linejoin: round; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 0; animation: draw 1.7s cubic-bezier(.3,.1,.2,1) .15s backwards; }
.pl-stop { stroke: var(--down); stroke-width: 2.2; fill: none; stroke-dasharray: 7 6; }
.pl-entry { fill: var(--up); stroke: var(--panel); stroke-width: 3; }
.pl-label { font: 600 15px var(--sans); fill: var(--ink-soft); }
.pl-label--up { fill: var(--up); }
.pl-label--down { fill: var(--down); }
@media (max-width: 40rem) { .pl-label { font-size: 30px; } }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) { .pl-line { animation: none; } }

/* forms and message panels */
.panel { background: var(--panel); border: 1.5px solid var(--ink); border-radius: 6px; padding: clamp(1.2rem, 4vw, 2rem); max-width: 30rem; margin: 0 auto; }
.panel--wide { max-width: 44rem; }
.panel h1 { font: 700 1.75rem/1.2 var(--serif); margin: 0 0 .4rem; letter-spacing: -.01em; }
.panel > p { color: var(--ink-soft); margin: 0 0 1.2rem; }
.field { display: block; margin: 0 0 1rem; }
.field > span { display: block; font-weight: 600; margin-bottom: .3rem; }
.field small { display: block; color: var(--ink-soft); margin-top: .25rem; }
input[type=text], input[type=email], input[type=password], select, textarea {
  width: 100%; font: inherit; padding: .6rem .7rem; color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--rule); border-radius: 5px;
}
input:hover, select:hover, textarea:hover { border-color: var(--ink-soft); }
textarea { min-height: 6rem; resize: vertical; }
.code-input { font-size: 1.5rem; letter-spacing: .25em; text-align: center; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.actions { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; margin-top: 1.2rem; }
.flash { margin: 0 0 1rem; padding: .7rem .9rem; border-radius: 5px; border: 1.5px solid var(--ink); background: var(--panel); }
.flash--error { border-color: var(--down); color: var(--down); }
.flash--ok { border-color: var(--up); color: var(--up); }
.flashes { max-width: 44rem; margin: 0 auto 1rem; }
.fine { color: var(--ink-soft); font-size: .92rem; }

/* setup, codes */
.qr { display: block; width: 12rem; height: 12rem; background: #fff; padding: .4rem; border: 1px solid var(--rule); border-radius: 4px; margin: .5rem 0 1rem; }
.seed { font: 600 1.05rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .06em; word-break: break-word; }
.codes { list-style: none; padding: 0; margin: 1rem 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr)); gap: .5rem; }
.codes li { font: 600 1.05rem ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; padding: .4rem .6rem; border: 1px dashed var(--ink-soft); border-radius: 4px; text-align: center; background: var(--paper); }

/* account and admin */
.stack { display: grid; gap: 2rem; }
.section h2 { font: 700 1.35rem/1.25 var(--serif); margin: 0 0 .6rem; }
.section > p { margin: 0 0 .8rem; color: var(--ink-soft); }
.table-wrap { overflow-x: auto; border: 1.5px solid var(--ink); border-radius: 6px; background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-size: .94rem; }
th, td { text-align: left; padding: .6rem .8rem; border-bottom: 1px solid var(--rule); vertical-align: middle; }
th { font-weight: 650; color: var(--ink-soft); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td form { display: inline; margin: 0; }
.row-actions { display: flex; gap: .4rem; flex-wrap: wrap; align-items: center; }
.row-actions select { width: auto; padding: .3rem .5rem; }
.inline-form { display: flex; gap: .6rem; flex-wrap: wrap; align-items: end; }
.inline-form .field { margin: 0; }
.link-box { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.link-box input { flex: 1 1 18rem; font-size: .9rem; }
.muted { color: var(--ink-soft); }
.empty { padding: 1rem; color: var(--ink-soft); }

.stack--page { max-width: 44rem; margin: 0 auto; }
.panel--flush { margin: 0; }
td:first-child { white-space: nowrap; }