/*
 * apibot admin dashboard — shared stylesheet.
 *
 * Design language: Vercel / Geist. Neutral greyscale, high-contrast type,
 * hairline borders, generous whitespace, a single near-black primary action.
 * Light by default, dark via prefers-color-scheme. Everything is built
 * mobile-first: data tables collapse into stacked cards below 768px using the
 * `data-label` attribute rendered on each <td>.
 */

:root {
  /* Geist greyscale — light theme */
  --bg: #ffffff;
  --bg-subtle: #fafafa;
  --panel: #ffffff;
  --panel-subtle: #f5f5f5;
  --line: #ebebeb;
  --line-strong: #e0e0e0;
  --fg: #171717;
  --fg-muted: #666666;
  --fg-subtle: #8f8f8f;

  /* Accents */
  --accent: #171717;        /* primary action = near-black (Geist style) */
  --accent-fg: #ffffff;
  --accent-hover: #383838;
  --link: #0070f3;          /* Vercel blue, used sparingly for links */
  --good: #0070f3;
  --good-bg: #e8f1ff;
  --good-fg: #0060df;
  --warn-bg: #fff8e6;
  --warn-fg: #8a6d00;
  --bad: #e5484d;
  --bad-bg: #fff0f0;
  --bad-fg: #c5292d;

  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);

  --font: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Helvetica, Arial, sans-serif;
  --mono: 'Geist Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo,
    Consolas, monospace;

  --nav-h: 56px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --bg-subtle: #0a0a0a;
    --panel: #0f0f0f;
    --panel-subtle: #1a1a1a;
    --line: #242424;
    --line-strong: #2e2e2e;
    --fg: #ededed;
    --fg-muted: #a1a1a1;
    --fg-subtle: #707070;

    --accent: #ededed;
    --accent-fg: #0a0a0a;
    --accent-hover: #cccccc;
    --link: #3291ff;
    --good: #3291ff;
    --good-bg: #0a1f33;
    --good-fg: #6cb6ff;
    --warn-bg: #2a2310;
    --warn-fg: #f1c453;
    --bad: #e5484d;
    --bad-bg: #2a1314;
    --bad-fg: #ff6166;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code, .mono {
  font-family: var(--mono);
  font-size: 0.875em;
}

code {
  background: var(--panel-subtle);
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid var(--line);
  word-break: break-all;
}

/* ── Top navigation ──────────────────────────────────────────────────────── */
header.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  height: var(--nav-h);
  padding: 0 16px;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

header.nav .brand {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  margin-right: 8px;
  white-space: nowrap;
}

header.nav nav {
  display: flex;
  gap: 2px;
  flex: 1;
  align-items: center;
}

header.nav nav a {
  color: var(--fg-muted);
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
header.nav nav a:hover {
  color: var(--fg);
  background: var(--panel-subtle);
  text-decoration: none;
}
header.nav nav a.active {
  color: var(--fg);
  background: var(--panel-subtle);
}

header.nav form.logout { margin: 0; }

/* Mobile menu toggle — hidden checkbox + label hamburger (no JS). */
.nav-toggle { display: none; }
.nav-burger {
  display: none;
  margin-left: auto;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--panel);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--fg);
}
.nav-burger svg { width: 18px; height: 18px; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

h1 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}
h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 32px 0 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.muted { color: var(--fg-muted); }
.right { text-align: right; }

/* ── Stat grid ───────────────────────────────────────────────────────────── */
.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.stat .n {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.stat .l {
  color: var(--fg-subtle);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* ── Tables ──────────────────────────────────────────────────────────────── */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th, td {
  text-align: left;
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
tr:last-child td { border-bottom: 0; }

th {
  color: var(--fg-subtle);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

tbody tr:hover td { background: var(--bg-subtle); }

/* ── Forms ───────────────────────────────────────────────────────────────── */
label {
  display: block;
  color: var(--fg-muted);
  margin: 12px 0 6px;
  font-size: 13px;
  font-weight: 500;
}

input[type=text], input[type=password], input[type=number],
textarea, select {
  width: 100%;
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font: inherit;
  font-size: 16px; /* ≥16px stops iOS Safari zoom-on-focus */
  transition: border-color 0.15s, box-shadow 0.15s;
}
@media (min-width: 768px) {
  input[type=text], input[type=password], input[type=number],
  textarea, select { font-size: 14px; }
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--fg);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--fg) 12%, transparent);
}

input[type=checkbox] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  vertical-align: middle;
}

textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--mono);
  line-height: 1.5;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--accent);
  color: var(--accent-fg);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font: inherit;
  font-weight: 500;
  line-height: 1;
  min-height: 38px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
}
button:hover, .btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  text-decoration: none;
}
button:active, .btn:active { opacity: 0.85; }

button.secondary, .btn.secondary {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  color: var(--fg);
}
button.secondary:hover, .btn.secondary:hover {
  background: var(--panel-subtle);
  border-color: var(--fg-subtle);
}

button.danger, .btn.danger {
  background: var(--bad);
  border-color: var(--bad);
  color: #fff;
}
button.danger:hover, .btn.danger:hover { background: var(--bad-fg); border-color: var(--bad-fg); }

button.good, .btn.good {
  background: var(--good);
  border-color: var(--good);
  color: #fff;
}
button.good:hover, .btn.good:hover { background: var(--good-fg); border-color: var(--good-fg); }

.inline { display: inline-flex; }

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid transparent;
}
.b-pending        { background: var(--panel-subtle); color: var(--fg-muted); border-color: var(--line-strong); }
.b-awaiting_review{ background: var(--warn-bg); color: var(--warn-fg); }
.b-paid           { background: var(--good-bg); color: var(--good-fg); }
.b-delivered      { background: var(--good-bg); color: var(--good-fg); }
.b-rejected       { background: var(--bad-bg); color: var(--bad-fg); }
.b-expired        { background: var(--panel-subtle); color: var(--fg-subtle); border-color: var(--line); }

/* ── Flash messages ──────────────────────────────────────────────────────── */
.flash {
  padding: 11px 14px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 13px;
  border: 1px solid transparent;
}
.flash.msg { background: var(--good-bg); border-color: color-mix(in srgb, var(--good) 30%, transparent); color: var(--good-fg); }
.flash.err { background: var(--bad-bg); border-color: color-mix(in srgb, var(--bad) 30%, transparent); color: var(--bad-fg); }
.flash.warn { background: var(--warn-bg); border-color: color-mix(in srgb, var(--warn-fg) 30%, transparent); color: var(--warn-fg); }

/* ── Action button clusters ──────────────────────────────────────────────── */
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* Back link above a page section */
.crumb { margin: 0 0 18px; color: var(--fg-muted); }

/* ── Mobile: collapse tables into stacked cards ──────────────────────────── */
@media (max-width: 767px) {
  header.nav nav {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 8px;
    display: none;
  }
  .nav-toggle:checked ~ nav { display: flex; }
  header.nav nav a { padding: 11px 12px; font-size: 15px; }
  .nav-burger { display: inline-flex; }

  main { padding: 20px 14px 64px; }
  h1 { font-size: 21px; }

  .panel { padding: 14px; border-radius: var(--radius); }

  /* Card-ify tables: each row becomes a bordered block, each cell a label/value
     pair driven by the data-label attribute. */
  .table-wrap { overflow-x: visible; }

  table.cards, table.cards thead, table.cards tbody,
  table.cards tr, table.cards th, table.cards td {
    display: block;
    width: 100%;
  }
  table.cards thead { display: none; }

  table.cards tr {
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    padding: 6px 12px;
    margin-bottom: 12px;
    background: var(--panel);
  }
  table.cards tbody tr:hover td { background: transparent; }

  table.cards td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 8px 0;
    border-bottom: 1px solid var(--line);
    text-align: right;
  }
  table.cards tr td:last-child { border-bottom: 0; }

  table.cards td::before {
    content: attr(data-label);
    color: var(--fg-subtle);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: left;
    flex-shrink: 0;
    padding-top: 2px;
  }
  /* Cells with no label (spanning detail rows / action rows) go full width. */
  table.cards td[data-label=""],
  table.cards td:not([data-label]) {
    justify-content: flex-start;
    text-align: left;
  }
  table.cards td[data-label=""]::before,
  table.cards td:not([data-label])::before { content: none; }

  /* Inputs inside card cells take remaining width, not full row. */
  table.cards td input[type=text],
  table.cards td input[type=number],
  table.cards td select { max-width: 60%; }

  .actions { width: 100%; }
  .actions form, .actions .btn, .actions button { flex: 1; }
}

/* ── Login page ──────────────────────────────────────────────────────────── */
body.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background: var(--bg-subtle);
}
.auth-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow);
}
.auth-card h1 {
  font-size: 20px;
  text-align: center;
  margin: 0 0 8px;
}
.auth-card .sub {
  text-align: center;
  color: var(--fg-muted);
  margin: 0 0 24px;
  font-size: 13px;
}
.auth-card button { width: 100%; margin-top: 20px; min-height: 42px; }

/* ── Product editor cards ────────────────────────────────────────────────── */
.product-card { margin-bottom: 14px; }
.product-card .phead {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.product-card .phead .glyph { font-size: 22px; line-height: 1; }
.product-card .phead .pid { color: var(--fg-subtle); font-size: 12px; }
.product-card .phead .pstock { margin-left: auto; color: var(--fg-muted); font-size: 13px; }

/* Responsive field grid: collapses to one column on narrow screens. */
.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px 16px;
}
.field { margin: 0; }
.field label { margin-top: 0; }
.field-check {
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: end;
  padding-bottom: 9px;
}
.field-check label { margin: 0; }

.product-card .pfoot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
}
.hint { color: var(--fg-subtle); font-size: 12px; margin-top: 6px; }