/* ===== Base design system (shared by all demos) ===== */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --border: #e3e6eb;
  --text: #14171c;
  --muted: #5d6673;
  --faint: #8b93a0;
  --accent: #2f5bea;
  --accent-soft: #e8eefe;
  --ok: #138a52;
  --ok-soft: #e3f5ec;
  --warn: #b26a00;
  --warn-soft: #fdf1dc;
  --bad: #c62f3a;
  --bad-soft: #fde8ea;
  --hl: #fff2a8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
/* Each demo's theme (in its own styles.css) overrides these tokens. */
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }

/* Demo notice */
.demo-notice {
  background: var(--accent-soft);
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  padding: 8px 16px;
  text-align: center;
}
.demo-notice strong { color: var(--accent); }

/* App shell */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--accent); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
}
.topbar .spacer { flex: 1; }
.topbar .who { color: var(--muted); font-size: 13px; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 20px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-h {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.card-h h2, .card-h h3 { font-size: 14px; font-weight: 650; }
.card-b { padding: 16px; }

.btn {
  border: 1px solid var(--border); background: var(--surface);
  padding: 7px 12px; border-radius: 8px; font-size: 13px; font-weight: 550;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: default; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 600;
  padding: 2px 8px; border-radius: 999px;
  background: var(--surface-2); color: var(--muted);
  white-space: nowrap;
}
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.info { background: var(--accent-soft); color: var(--accent); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; display: inline-block; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); padding: 0 12px; }
.tab {
  background: none; border: 0; padding: 10px 12px; font-size: 13px; font-weight: 550;
  color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--faint); font-weight: 600; }
tbody tr:hover { background: var(--surface-2); }
.num { font-variant-numeric: tabular-nums; text-align: right; }
.mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.kpi { padding: 14px 16px; }
.kpi .label { color: var(--muted); font-size: 12px; }
.kpi .value { font-size: 24px; font-weight: 650; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .delta { font-size: 12px; margin-top: 2px; }

.scroll-x { overflow-x: auto; }

/* Case study section */
.case {
  max-width: 1320px; margin: 8px auto 40px; padding: 0 20px;
}
.case .card-b { display: grid; grid-template-columns: 1.3fr 1fr; gap: 28px; padding: 24px; }
.case h2 { font-size: 20px; margin-bottom: 8px; }
.case h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); margin: 18px 0 6px; }
.case p { margin: 0 0 8px; color: var(--muted); }
.case ul { margin: 0; padding-left: 18px; color: var(--muted); }
.case li { margin: 3px 0; }
.results { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.result { background: var(--surface-2); border-radius: 8px; padding: 12px; }
.result b { display: block; font-size: 20px; color: var(--text); }
.result span { font-size: 12px; color: var(--muted); }
.stack { display: flex; flex-wrap: wrap; gap: 6px; }
.case .cta { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }

.toast {
  position: fixed; right: 16px; bottom: 16px; z-index: 50;
  background: var(--text); color: var(--bg);
  padding: 10px 14px; border-radius: 8px; font-size: 13px;
  opacity: 0; transform: translateY(8px); transition: .2s; pointer-events: none;
}
.toast.show { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case .card-b { grid-template-columns: 1fr; }
  .wrap { padding: 16px; }
  .topbar { padding: 10px 16px; }
  .topbar .who { display: none; }
}
@media (max-width: 520px) {
  .results { grid-template-columns: 1fr; }
}
/* ===== Theme: construction / industrial (Operations Platform) ===== */
:root {
  --bg: #eceef1;
  --surface: #ffffff;
  --surface-2: #f3f4f6;
  --border: #dde1e6;
  --text: #121417;
  --muted: #59616c;
  --faint: #8a929d;
  --accent: #f5b800;
  --accent-ink: #1a1400;
  --accent-soft: #fff4cc;
  --ok: #16884f;
  --ok-soft: #dff4e8;
  --warn: #b25d00;
  --warn-soft: #ffeccf;
  --bad: #cf2f2f;
  --bad-soft: #fde3e3;
  --side: #17191c;
  --side-text: #c9ced6;
  --radius: 14px;
  --shadow: 0 1px 0 rgba(0,0,0,.04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f11;
    --surface: #17191c;
    --surface-2: #1f2226;
    --border: #2b2f35;
    --text: #eef0f3;
    --muted: #a1a8b3;
    --faint: #707884;
    --accent-soft: #3a2f05;
    --ok: #3fcf86;
    --ok-soft: #10301f;
    --warn: #ffb04a;
    --warn-soft: #3a2810;
    --bad: #ff6d6d;
    --bad-soft: #3c1616;
    --side: #08090a;
    color-scheme: dark;
  }
}
body { font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif; }
h1 { font-size: 26px; font-weight: 800; letter-spacing: -.02em; }
.btn { border-radius: 10px; font-weight: 700; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent); }
.pill { border-radius: 6px; font-weight: 700; }
.pill.info { background: var(--accent-soft); color: var(--text); }
.demo-notice { background: var(--accent); color: var(--accent-ink); border: 0; }
.demo-notice strong { color: inherit; }
.kpi .label { text-transform: uppercase; letter-spacing: .06em; font-size: 11px; font-weight: 700; }
.kpi .value { font-size: 30px; font-weight: 800; letter-spacing: -.02em; }

/* Shell with sidebar */
.shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: calc(100vh - 36px); }
.side { background: var(--side); color: var(--side-text); padding: 18px 14px; display: flex; flex-direction: column; gap: 18px; }
.side .brand { color: #fff; font-size: 16px; padding: 0 6px; }
.side .brand-mark { background: var(--accent); color: var(--accent-ink); border-radius: 8px; }
.side h4 { font-size: 10.5px; text-transform: uppercase; letter-spacing: .1em; color: #6f7681; padding: 0 8px; margin-bottom: 6px; }
.nav a { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 9px; color: var(--side-text); text-decoration: none; font-weight: 600; font-size: 13.5px; }
.nav a.on { background: #272a2f; color: #fff; }
.nav a .ic { width: 18px; text-align: center; opacity: .8; }
.roles { display: grid; gap: 6px; }
.role {
  text-align: left; background: #202328; border: 1px solid #2c3036; color: var(--side-text);
  border-radius: 10px; padding: 9px 10px; font-size: 13px; font-weight: 600;
}
.role small { display: block; color: #7d8590; font-weight: 500; font-size: 11.5px; }
.role[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.role[aria-pressed="true"] small { color: #4a3c00; }
.side .foot { margin-top: auto; font-size: 11.5px; color: #6f7681; padding: 0 8px; }
.main { padding: 22px 26px; min-width: 0; }
.head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.head .eyebrow { text-transform: uppercase; letter-spacing: .1em; font-size: 11px; font-weight: 800; color: var(--muted); }

/* Kanban */
.board { display: grid; grid-template-columns: repeat(4, minmax(220px, 1fr)); gap: 12px; overflow-x: auto; padding-bottom: 4px; }
.col { background: var(--surface-2); border-radius: 12px; padding: 10px; min-height: 260px; }
.col-h { display: flex; justify-content: space-between; align-items: center; padding: 2px 4px 10px; font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.wo { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 11px; margin-bottom: 8px; border-left: 4px solid var(--border); }
.wo.p-high { border-left-color: var(--bad); }
.wo.p-med { border-left-color: var(--accent); }
.wo.p-low { border-left-color: var(--ok); }
.wo .id { font-family: var(--mono); font-size: 11px; color: var(--faint); }
.wo .t { font-weight: 700; font-size: 13px; margin: 2px 0 6px; }
.wo .m { display: flex; justify-content: space-between; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.wo .adv { padding: 2px 8px; font-size: 12px; border-radius: 7px; }
.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 14px; margin-top: 14px; }

/* Field view */
.jobs { display: grid; gap: 10px; }
.job { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); cursor: pointer; }
.job.on { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.job .time { font-weight: 800; font-size: 13px; min-width: 52px; }
.job .t { font-weight: 700; }
.photo { position: relative; border-radius: 12px; overflow: hidden; background: #2a2e34; aspect-ratio: 4 / 3; }
.photo svg { width: 100%; height: 100%; display: block; }
.mark { position: absolute; border: 2px solid var(--bad); border-radius: 6px; display: none; }
.mark.show { display: block; animation: pulse 1.2s ease-out 2; }
.mark.ok { border-color: var(--ok); }
.mark span { position: absolute; top: -22px; left: -2px; background: var(--bad); color: #fff; font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 4px; white-space: nowrap; }
.mark.ok span { background: var(--ok); }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(207,47,47,.6);} 100% { box-shadow: 0 0 0 14px rgba(207,47,47,0);} }
.checks { list-style: none; margin: 0; padding: 0; }
.checks li { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.checks li:last-child { border-bottom: 0; }
.checks .r { margin-left: auto; }
.checklist label { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 13px; cursor: pointer; }
.checklist input { width: 18px; height: 18px; accent-color: var(--accent); }

/* Client view */
.proj { padding: 16px; border-bottom: 1px solid var(--border); }
.proj:last-child { border-bottom: 0; }
.bar { height: 10px; background: var(--surface-2); border-radius: 6px; overflow: hidden; margin: 8px 0 4px; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 6px; }
.rls { display: flex; gap: 10px; align-items: center; padding: 10px 14px; border-radius: 10px; background: var(--surface); border: 1px dashed var(--border); font-size: 12.5px; color: var(--muted); margin-bottom: 14px; }
.rls code { font-family: var(--mono); font-size: 11.5px; background: var(--surface-2); padding: 1px 6px; border-radius: 4px; color: var(--text); }

.case .result b { font-weight: 800; }

@media (max-width: 1000px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; align-items: center; gap: 10px; }
  .side .nav, .side h4, .side .foot { display: none; }
  .roles { grid-template-columns: repeat(3, auto); }
  .role small { display: none; }
  .grid-2 { grid-template-columns: 1fr; }
  .main { padding: 16px; }
}