/* HA Field Sales: shared design system.
   Principles: light theme (outdoor sunlight readability), one accent colour,
   semantic tones for status, 48px minimum touch targets on the field app,
   system font stack (fast on low-end Android, no web font download). */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e2e5ea;
  --border-strong: #c9ced6;
  --ink: #14181f;
  --ink-2: #4a5260;
  --ink-3: #7b8391;

  --accent: #1f5eff;
  --accent-ink: #ffffff;
  --accent-soft: #e8efff;

  --good: #12805c;      --good-bg: #e3f5ee;
  --good-soft: #2f9e78; --good-soft-bg: #eef9f4;
  --warn: #a15c00;      --warn-bg: #fff3e0;
  --bad: #c62a2a;       --bad-bg: #fdeaea;
  --bad-soft: #b0563a;  --bad-soft-bg: #fbefe9;
  --neutral: #4a5260;   --neutral-bg: #eef0f3;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, .14);

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

  --tap: 48px;
  --gutter: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
h1, h2, h3, h4 { margin: 0 0 .4em; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: 22px; } h2 { font-size: 18px; } h3 { font-size: 15px; }
p { margin: 0 0 .6em; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--ink-2); }
.subtle { color: var(--ink-3); font-size: 13px; }
.mono { font-family: var(--mono); }
.num { font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }

/* ---------- Layout ---------- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 560px; margin: 0 auto; padding: 0 var(--gutter); }
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 12px; align-items: center; }
.row-wrap { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 720px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 12px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px; background: var(--ink); color: #fff;
  display: inline-grid; place-items: center; font-weight: 800; font-size: 13px; letter-spacing: .02em;
}
.nav { display: flex; gap: 4px; }
.nav a { padding: 8px 12px; border-radius: 8px; color: var(--ink-2); font-weight: 500; }
.nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav a.active { background: var(--accent-soft); color: var(--accent); }

/* ---------- Cards ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.card-title { font-size: 13px; font-weight: 600; color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
.section-title { font-size: 13px; font-weight: 600; color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; margin: 20px 0 8px; }

/* KPI tile */
.kpi { padding: 14px 16px; }
.kpi .kpi-label { font-size: 12px; color: var(--ink-2); font-weight: 500; }
.kpi .kpi-value { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.kpi .kpi-sub { font-size: 12px; color: var(--ink-3); }
.delta-up { color: var(--good); } .delta-down { color: var(--bad); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 0 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
  font: inherit; font-weight: 600; cursor: pointer; user-select: none; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #164ee0; }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-good { background: var(--good); border-color: var(--good); color: #fff; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-sm { min-height: 32px; padding: 0 10px; font-size: 13px; }
.btn-lg { min-height: var(--tap); font-size: 16px; padding: 0 20px; }
.btn-block { width: 100%; }

/* ---------- Forms ---------- */
.label { display: block; font-weight: 600; font-size: 14px; margin: 0 0 6px; }
.label .req { color: var(--bad); margin-left: 2px; }
.hint { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.field + .field { margin-top: 16px; }
.input, .select, .textarea {
  width: 100%; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit; font-size: 16px; /* 16px stops iOS zoom */
}
.input:focus, .select:focus, .textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.input-lg { min-height: var(--tap); }
.input-code { letter-spacing: .3em; font-size: 22px; text-align: center; font-family: var(--mono); }
.textarea { min-height: 88px; resize: vertical; }
.form-error { color: var(--bad); font-size: 14px; margin: 8px 0 0; }
.invalid { border-color: var(--bad) !important; }

/* Big choice buttons (field app outcome/activity/yes-no) */
.choices { display: grid; gap: 8px; }
.choices-2 { grid-template-columns: 1fr 1fr; }
.choice {
  display: flex; align-items: center; gap: 10px; min-height: var(--tap); padding: 10px 14px;
  border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm); background: var(--surface);
  font: inherit; font-size: 15px; font-weight: 500; color: var(--ink); text-align: left; cursor: pointer;
}
.choice .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.choice[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); font-weight: 600; }

/* Segmented control (admin/dashboard filters) */
.segmented { display: inline-flex; background: var(--surface-2); border-radius: 10px; padding: 3px; gap: 2px; }
.segmented button { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; font: inherit; font-size: 13px; font-weight: 600; color: var(--ink-2); cursor: pointer; }
.segmented button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }

/* ---------- Pills / tones ---------- */
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.tone-good      { color: var(--good);      background: var(--good-bg); }
.tone-good-soft { color: var(--good-soft); background: var(--good-soft-bg); }
.tone-warn      { color: var(--warn);      background: var(--warn-bg); }
.tone-bad       { color: var(--bad);       background: var(--bad-bg); }
.tone-bad-soft  { color: var(--bad-soft);  background: var(--bad-soft-bg); }
.tone-neutral   { color: var(--neutral);   background: var(--neutral-bg); }
.dot.tone-good { background: var(--good); } .dot.tone-good-soft { background: var(--good-soft); }
.dot.tone-warn { background: var(--warn); } .dot.tone-bad { background: var(--bad); }
.dot.tone-bad-soft { background: var(--bad-soft); } .dot.tone-neutral { background: var(--neutral); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; font-size: 12px; font-weight: 600; color: var(--ink-2); background: var(--surface-2); padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0; }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr.clickable { cursor: pointer; }
.table tbody tr.clickable:hover { background: #f8f9fb; }
.table tbody tr.selected { background: var(--accent-soft); }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Drawer (admin detail panel) ---------- */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(16, 24, 40, .3); z-index: 40; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(640px, 100vw); z-index: 41;
  background: var(--surface); box-shadow: var(--shadow-lg); display: flex; flex-direction: column;
}
.drawer-head { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; gap: 12px; align-items: flex-start; }
.drawer-body { padding: 16px 20px; overflow-y: auto; flex: 1; }
.drawer-foot { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Media ---------- */
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; }
.thumb { position: relative; aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--surface-2); border: 1px solid var(--border); }
.thumb img, .thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb .thumb-x { position: absolute; top: 4px; right: 4px; width: 28px; height: 28px; border-radius: 50%; border: 0; background: rgba(0,0,0,.6); color: #fff; font-size: 16px; cursor: pointer; }
.thumb-add { display: grid; place-items: center; color: var(--accent); font-weight: 600; font-size: 13px; cursor: pointer; border-style: dashed; border-color: var(--border-strong); }

/* ---------- Empty / loading ---------- */
.empty { text-align: center; padding: 40px 16px; color: var(--ink-3); }
.skeleton { background: linear-gradient(90deg, var(--surface-2), #e7eaee, var(--surface-2)); background-size: 200% 100%; animation: sk 1.2s infinite; border-radius: 6px; min-height: 16px; }
@keyframes sk { to { background-position: -200% 0; } }
.spinner { width: 18px; height: 18px; border: 2px solid var(--border-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Banner / toast ---------- */
.banner { padding: 10px 14px; border-radius: var(--radius-sm); font-size: 14px; display: flex; gap: 10px; align-items: center; }
.banner-warn { background: var(--warn-bg); color: var(--warn); }
.banner-bad { background: var(--bad-bg); color: var(--bad); }
.banner-info { background: var(--accent-soft); color: var(--accent); }
.banner-good { background: var(--good-bg); color: var(--good); }
#toasts { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow-lg); font-size: 14px; font-weight: 500; transition: opacity .3s, transform .3s; max-width: 90vw; }
.toast-good { background: var(--good); } .toast-bad { background: var(--bad); }
.toast.out { opacity: 0; transform: translateY(8px); }

/* ---------- Auth ---------- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px var(--gutter); }
.auth-card { width: 100%; max-width: 400px; padding: 28px 24px; }
.auth-card .brand-mark { margin-bottom: 16px; width: 40px; height: 40px; font-size: 15px; }
.auth-title { font-size: 22px; }
.auth-card form { margin-top: 20px; }
.auth-card form > * + * { margin-top: 12px; }

/* Keyboard hint chip */
kbd { font-family: var(--mono); font-size: 11px; padding: 1px 5px; border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 4px; background: var(--surface); color: var(--ink-2); }

/* Narrow screens: four nav links + sign out must fit without pushing the page wide. */
@media (max-width: 560px) {
  .topbar-inner { gap: 6px; }
  .brand .t, .topbar .who { display: none; }
  .nav { overflow-x: auto; scrollbar-width: none; flex: 1; min-width: 0; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { padding: 8px 8px; white-space: nowrap; font-size: 14px; }
}