/* Base: design tokens, reset, typography, layout, header, forms, buttons. */
:root {
  color-scheme: light dark;
  --bg: #f6f5fa;
  --surface: #ffffff;
  --surface-2: #f0eef7;
  --text: #1d1b26;
  --muted: #595569;
  --border: #dcd8e6;
  --accent: #6d28d9;
  --accent-text: #ffffff;
  --accent-soft: #ede9fe;
  --focus: #2563eb;
  --ok: #166534;
  --ok-bg: #dcfce7;
  --bad: #b91c1c;
  --bad-bg: #fee2e2;
  --warn: #92400e;
  --warn-bg: #fef3c7;

  --event-bg: #ede9fe;
  --event-fg: #3b1a7a;
  --event-border: #8b5cf6;
  --onsale-bg: #fef3c7;
  --onsale-fg: #713f12;
  --onsale-border: #d97706;
  --presale-bg: #ccfbf1;
  --presale-fg: #134e4a;
  --presale-border: #0d9488;
  --tracked: #b45309;

  --heat-1: #ede9fe;
  --heat-2: #c4b5fd;
  --heat-3: #8b5cf6;
  --heat-4: #5b21b6;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgb(20 10 40 / 6%), 0 2px 8px rgb(20 10 40 / 5%);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  --maxw: 1200px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121119;
    --surface: #1b1925;
    --surface-2: #252232;
    --text: #ece9f5;
    --muted: #aaa5bf;
    --border: #363247;
    --accent: #a78bfa;
    --accent-text: #160b2e;
    --accent-soft: #2c2445;
    --focus: #93c5fd;
    --ok: #86efac;
    --ok-bg: #14321f;
    --bad: #fca5a5;
    --bad-bg: #3b1515;
    --warn: #fcd34d;
    --warn-bg: #3a2a08;

    --event-bg: #2c2445;
    --event-fg: #ddd6fe;
    --event-border: #a78bfa;
    --onsale-bg: #3a2a08;
    --onsale-fg: #fde68a;
    --onsale-border: #f59e0b;
    --presale-bg: #0d3330;
    --presale-fg: #99f6e4;
    --presale-border: #2dd4bf;
    --tracked: #fbbf24;

    --heat-1: #2c2445;
    --heat-2: #4c3a85;
    --heat-3: #7c5cd6;
    --heat-4: #b9a2ff;
    --shadow: none;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font);
}
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 .75rem; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
code, pre, kbd { font-family: var(--mono); font-size: .9em; }
kbd { border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px; padding: 0 .35em; background: var(--surface-2); }
pre { white-space: pre-wrap; word-break: break-word; margin: 0; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link { position: absolute; left: .5rem; top: -3rem; z-index: 100; background: var(--surface); padding: .5rem 1rem; border-radius: var(--radius-sm); }
.skip-link:focus { top: .5rem; }

.muted { color: var(--muted); }
.small { font-size: .875rem; }
.error { color: var(--bad); }
.lede { color: var(--muted); max-width: 70ch; }
.noscript { padding: 2rem; text-align: center; }

/* ---------- header ---------- */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.header-top {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  max-width: var(--maxw); margin: 0 auto; padding: .6rem 1rem .25rem;
}
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 650; color: var(--text); text-decoration: none; font-size: 1.1rem; }
.status-line { margin: 0; color: var(--muted); font-size: .85rem; flex: 1; min-width: 10rem; }
.header-actions { display: flex; gap: .5rem; margin-left: auto; }
.main-nav { max-width: var(--maxw); margin: 0 auto; padding: 0 .5rem; overflow-x: auto; scrollbar-width: thin; }
.main-nav ul { display: flex; gap: .15rem; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  display: flex; align-items: center; gap: .35rem; white-space: nowrap;
  padding: .55rem .7rem; color: var(--muted); text-decoration: none; font-weight: 500;
  border-bottom: 3px solid transparent;
}
.main-nav a:hover { color: var(--text); }
.main-nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
.nav-badge {
  background: var(--accent); color: var(--accent-text); border-radius: 999px;
  font-size: .72rem; font-weight: 700; padding: .05rem .45rem; min-width: 1.4rem; text-align: center;
}
.nav-badge-warn { background: var(--bad); color: #fff; }

.app-main { max-width: var(--maxw); margin: 0 auto; padding: 1.25rem 1rem 4rem; outline: none; }
.page-head { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; margin-bottom: .5rem; }
.page-head h1 { margin: 0; flex: 1; outline: none; }
.page-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.crumbs { font-size: .9rem; margin-bottom: .5rem; }

/* ---------- forms ---------- */
input, select, textarea, button { font: inherit; color: inherit; }
input[type=text], input[type=search], input[type=url], input[type=tel], input[type=password],
input[type=number], input[type=date], input[type=time], input[type=datetime-local], select, textarea {
  width: 100%;
  padding: .5rem .6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  min-height: 2.5rem;
}
textarea { resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 0; }
.input-narrow { width: 5.5rem !important; display: inline-block; }
.field { display: flex; flex-direction: column; gap: .25rem; margin-bottom: .85rem; min-width: 0; }
.field label { font-weight: 550; font-size: .92rem; }
.hint { color: var(--muted); font-size: .82rem; }
.check { display: inline-flex; align-items: center; gap: .4rem; cursor: pointer; margin: .25rem 0; }
.check input { width: 1.1rem; height: 1.1rem; accent-color: var(--accent); }
.channel-row { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; margin: .25rem 0; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: .75rem 1rem .5rem; margin: 0 0 1rem; min-width: 0; }
legend { font-weight: 650; padding: 0 .35rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0 1rem; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 0 1rem; align-items: end; margin-top: .75rem; }
.field-submit { justify-content: flex-end; }
.stack > * + * { margin-top: .25rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  min-height: 2.5rem; padding: .45rem .9rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--text);
  font-weight: 550; text-decoration: none; cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn[aria-busy="true"] { cursor: progress; }
.btn-small { min-height: 2.1rem; padding: .3rem .7rem; font-size: .9rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { background: var(--accent); filter: brightness(1.08); }
.btn-secondary { background: var(--accent-soft); border-color: transparent; color: var(--text); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-danger-text { color: var(--bad); }
.btn-approve { background: var(--ok); border-color: var(--ok); color: var(--surface); }
.btn-approve:hover { background: var(--ok); filter: brightness(1.1); }
.btn-reject { background: var(--surface); border-color: var(--bad); color: var(--bad); }
.btn-reject:hover { background: var(--bad-bg); }
.btn-approve-soft { background: var(--ok-bg); border-color: transparent; color: var(--ok); font-size: .88rem; white-space: normal; text-align: left; }
.btn-reject-soft { background: var(--bad-bg); border-color: transparent; color: var(--bad); font-size: .88rem; white-space: normal; text-align: left; }
.btn-tracked { background: var(--onsale-bg); border-color: var(--onsale-border); color: var(--onsale-fg); }
.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.icon-btn { background: none; border: 0; font-size: 1.5rem; line-height: 1; padding: .25rem .5rem; cursor: pointer; color: var(--muted); border-radius: var(--radius-sm); }
.icon-btn:hover { color: var(--text); background: var(--surface-2); }

/* segmented control */
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--surface); }
.seg-btn { border: 0; background: transparent; padding: .4rem .8rem; cursor: pointer; font-weight: 550; min-height: 2.2rem; }
.seg-btn + .seg-btn { border-left: 1px solid var(--border); }
.seg-btn[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); }

/* login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(24rem, 100%); }
.login-brand { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.login-brand h1 { margin: 0; }

@media (max-width: 640px) {
  .header-top { padding: .5rem .75rem .2rem; gap: .5rem; }
  .status-line { order: 3; flex-basis: 100%; }
  .app-main { padding: 1rem .75rem 4rem; }
  h1 { font-size: 1.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}