/* SANDHI Registry — app styles. Mobile first, light/dark aware. */
:root {
  --snd-bg: #f5f6f4; --snd-surface: #ffffff; --snd-ink: #1c2321; --snd-muted: #5d6763; --snd-line: #dfe3df;
  --snd-accent: #0f6e63; --snd-accent-ink: #ffffff; --snd-accent-soft: #e2f1ee;
  --snd-info: #2563eb; --snd-info-soft: #e8efff; --snd-warn: #a15c07; --snd-warn-soft: #fdf3e2;
  --snd-crit: #b42318; --snd-crit-soft: #fdeceb; --snd-ok: #157a43; --snd-ok-soft: #e5f5ec;
  --snd-radius: 10px; --snd-font: "Noto Sans", "Noto Sans Malayalam", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --snd-bg: #121615; --snd-surface: #1b201f; --snd-ink: #e8ecea; --snd-muted: #9aa6a1; --snd-line: #2e3533;
    --snd-accent: #3fb3a4; --snd-accent-ink: #0b1513; --snd-accent-soft: #163330; --snd-info-soft: #172341; --snd-warn-soft: #33260f;
    --snd-crit-soft: #3a1714; --snd-ok-soft: #12301f; --snd-info: #7aa2ff; --snd-warn: #f0b456; --snd-crit: #ff8a7f; --snd-ok: #5fd08e; }
}
* { box-sizing: border-box; }
body.snd-body { margin: 0; background: var(--snd-bg); color: var(--snd-ink); font: 15px/1.5 var(--snd-font); }
body.snd-noscroll { overflow: hidden; }
a { color: var(--snd-accent); }
h1 { font-size: 22px; margin: 4px 0 14px; } h2 { font-size: 18px; margin: 0; } h3 { font-size: 15px; margin: 0 0 10px; }
.snd-muted { color: var(--snd-muted); font-size: 13px; }
.snd-loading, .snd-empty { padding: 24px; text-align: center; color: var(--snd-muted); }

/* layout */
.snd-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px; padding: 8px 16px; background: var(--snd-surface); border-bottom: 1px solid var(--snd-line); }
.snd-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .06em; color: var(--snd-ink); text-decoration: none; }
.snd-logo { width: 22px; height: 22px; border-radius: 50%; border: 5px solid var(--snd-accent); box-shadow: 9px 0 0 -4px var(--snd-accent); }
.snd-who { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; font-size: 13px; }
.snd-who .snd-muted { display: none; }
.snd-burger { display: inline-flex; background: none; border: 0; font-size: 22px; color: var(--snd-ink); cursor: pointer; min-width: 40px; min-height: 40px; }
.snd-shell { display: flex; }
.snd-nav { display: none; flex-direction: column; position: fixed; top: 57px; left: 0; bottom: 0; width: 240px; padding: 12px; background: var(--snd-surface); border-right: 1px solid var(--snd-line); z-index: 15; overflow-y: auto; }
.snd-nav.open { display: flex; }
.snd-nav a { padding: 10px 12px; border-radius: 8px; color: var(--snd-ink); text-decoration: none; }
.snd-nav a:hover { background: var(--snd-accent-soft); }
.snd-nav a.active { background: var(--snd-accent); color: var(--snd-accent-ink); }
.snd-main { flex: 1; min-width: 0; padding: 16px; max-width: 1200px; margin: 0 auto; }
.snd-notice { position: fixed; bottom: 0; left: 0; right: 0; padding: 6px 16px; font-size: 12px; background: var(--snd-warn-soft); color: var(--snd-warn); text-align: center; z-index: 5; }
@media (min-width: 900px) {
  .snd-burger { display: none; }
  .snd-nav { display: flex; position: sticky; top: 57px; height: calc(100vh - 57px); }
  .snd-who .snd-muted { display: inline; }
  .snd-main { padding: 24px 32px 48px; }
}

/* components */
.snd-card { background: var(--snd-surface); border: 1px solid var(--snd-line); border-radius: var(--snd-radius); padding: 16px; margin-bottom: 14px; }
.snd-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.snd-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.snd-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 40px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--snd-line); background: var(--snd-surface); color: var(--snd-ink); font: inherit; cursor: pointer; text-decoration: none; }
.snd-btn:hover { border-color: var(--snd-accent); }
.snd-btn.primary { background: var(--snd-accent); color: var(--snd-accent-ink); border-color: var(--snd-accent); font-weight: 600; }
.snd-btn.small { min-height: 32px; padding: 4px 10px; font-size: 13px; }
.snd-btn.ghost { border-color: transparent; background: transparent; }
.snd-btn:focus-visible, .snd-choice:focus-visible, .snd-input:focus-visible { outline: 3px solid var(--snd-accent); outline-offset: 1px; }
.snd-input { width: 100%; min-height: 40px; padding: 8px 10px; border: 1px solid var(--snd-line); border-radius: 8px; background: var(--snd-surface); color: var(--snd-ink); font: inherit; }
.snd-search { margin-bottom: 14px; } .snd-search .snd-input { flex: 1 1 200px; width: auto; }
.snd-table-wrap { overflow-x: auto; }
.snd-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.snd-table th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--snd-muted); border-bottom: 1px solid var(--snd-line); padding: 8px 10px; white-space: nowrap; }
.snd-table td { border-bottom: 1px solid var(--snd-line); padding: 8px 10px; vertical-align: top; }
.snd-click { cursor: pointer; } .snd-click:hover { background: var(--snd-accent-soft); }
.snd-alert { border-radius: 8px; padding: 10px 12px; margin: 8px 0; border-left: 4px solid; font-size: 14px; }
.snd-alert.info { background: var(--snd-info-soft); border-color: var(--snd-info); }
.snd-alert.warn { background: var(--snd-warn-soft); border-color: var(--snd-warn); }
.snd-alert.critical { background: var(--snd-crit-soft); border-color: var(--snd-crit); font-weight: 600; }
.snd-alert.ok { background: var(--snd-ok-soft); border-color: var(--snd-ok); }
.snd-badge { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px; background: var(--snd-line); color: var(--snd-ink); white-space: nowrap; }
.snd-badge.ok { background: var(--snd-ok-soft); color: var(--snd-ok); } .snd-badge.warn { background: var(--snd-warn-soft); color: var(--snd-warn); }
.snd-badge.bad { background: var(--snd-crit-soft); color: var(--snd-crit); } .snd-badge.info { background: var(--snd-accent-soft); color: var(--snd-accent); }
.snd-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 14px; }
.snd-kpi { background: var(--snd-surface); border: 1px solid var(--snd-line); border-radius: var(--snd-radius); padding: 14px; }
.snd-kpi .v { font-size: 26px; font-weight: 700; } .snd-kpi .l { font-size: 13px; color: var(--snd-muted); }
.snd-kpi.warn .v { color: var(--snd-warn); } .snd-kpi.bad .v { color: var(--snd-crit); } .snd-kpi.ok .v { color: var(--snd-ok); }
.snd-tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--snd-line); margin: 12px 0 14px; }
.snd-tabs button { border: 0; background: none; padding: 10px 12px; font: inherit; color: var(--snd-muted); border-bottom: 3px solid transparent; cursor: pointer; white-space: nowrap; }
.snd-tabs button.on { color: var(--snd-ink); border-color: var(--snd-accent); font-weight: 600; }
.snd-person-head { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: flex-start; }
.snd-person-head h1 { margin-bottom: 4px; }
.snd-toasts { position: fixed; right: 16px; bottom: 40px; display: flex; flex-direction: column; gap: 8px; z-index: 100; max-width: 90vw; }
.snd-toast { padding: 10px 14px; border-radius: 8px; background: var(--snd-ink); color: var(--snd-bg); box-shadow: 0 4px 16px rgba(0,0,0,.2); }
.snd-toast.critical, .snd-toast.error { background: var(--snd-crit); color: #fff; } .snd-toast.ok { background: var(--snd-ok); color: #fff; } .snd-toast.warn { background: var(--snd-warn); color: #fff; }

/* forms */
.snd-form { display: grid; gap: 14px; }
.snd-field { display: grid; gap: 6px; }
.snd-label { font-weight: 600; font-size: 14px; }
.snd-field.req > .snd-label::after { content: " *"; color: var(--snd-crit); }
.snd-unit { font-weight: 400; color: var(--snd-muted); }
.snd-help { font-size: 12px; color: var(--snd-muted); }
.snd-err { font-size: 13px; color: var(--snd-crit); font-weight: 600; }
.snd-f-heading { margin: 10px 0 0; padding-top: 10px; border-top: 1px solid var(--snd-line); font-size: 15px; color: var(--snd-accent); }
.snd-f-note { margin: 0; font-size: 13px; color: var(--snd-muted); }
.snd-choices { display: flex; flex-wrap: wrap; gap: 6px; }
.snd-choice { min-height: 40px; min-width: 44px; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--snd-line); background: var(--snd-surface); color: var(--snd-ink); font: inherit; cursor: pointer; }
.snd-choice.on { background: var(--snd-accent); border-color: var(--snd-accent); color: var(--snd-accent-ink); }
.snd-scale .snd-choice { min-width: 40px; padding: 6px 0; }
.snd-approx { display: grid; grid-template-columns: 130px 1fr; gap: 6px; }
.snd-group { display: grid; gap: 10px; }
.snd-group-row { border: 1px dashed var(--snd-line); border-radius: 8px; padding: 10px; }
.snd-group-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.snd-group-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.snd-scores { display: grid; gap: 8px; }
.snd-score-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.snd-score { background: var(--snd-accent-soft); border-radius: 8px; padding: 8px 10px; display: grid; }
.snd-score .l { font-size: 12px; color: var(--snd-muted); } .snd-score .v { font-size: 18px; font-weight: 700; }

/* modal */
.snd-modal { position: fixed; inset: 0; background: rgba(10, 14, 13, .55); z-index: 50; display: flex; align-items: stretch; justify-content: center; }
.snd-modal-panel { background: var(--snd-bg); width: 100%; max-width: 1100px; display: flex; flex-direction: column; max-height: 100vh; }
.snd-modal-panel.narrow { max-width: 560px; }
.snd-modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 14px 16px; background: var(--snd-surface); border-bottom: 1px solid var(--snd-line); }
.snd-modal-meta { display: flex; gap: 12px; flex-wrap: wrap; padding: 10px 16px; background: var(--snd-surface); border-bottom: 1px solid var(--snd-line); }
.snd-modal-meta label { display: grid; gap: 4px; font-size: 13px; min-width: 160px; }
.snd-inote { padding: 6px 16px; }
.snd-modal-cols { flex: 1; overflow-y: auto; display: grid; grid-template-columns: 1fr; }
.snd-modal-body { padding: 16px; } .snd-modal-body.pad { overflow-y: auto; }
.snd-side { padding: 16px; border-top: 1px solid var(--snd-line); background: var(--snd-surface); }
.snd-modal-foot { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; padding: 12px 16px; background: var(--snd-surface); border-top: 1px solid var(--snd-line); }
@media (min-width: 900px) {
  .snd-modal { align-items: center; padding: 24px; }
  .snd-modal-panel { border-radius: 12px; overflow: hidden; max-height: calc(100vh - 48px); }
  .snd-modal-cols { grid-template-columns: minmax(0, 1fr) 320px; }
  .snd-side { border-top: 0; border-left: 1px solid var(--snd-line); position: sticky; top: 0; align-self: start; min-height: 100%; }
}
.snd-formlist { display: grid; gap: 8px; }
.snd-formpick { display: grid; text-align: left; gap: 2px; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--snd-line); background: var(--snd-surface); color: var(--snd-ink); font: inherit; cursor: pointer; }
.snd-formpick:hover { border-color: var(--snd-accent); }

/* charts */
.snd-chart { margin: 6px 0 12px; } .snd-chart-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.snd-svg { width: 100%; height: auto; display: block; }
.snd-svg-grid { stroke: var(--snd-line); stroke-width: 1; }
.snd-svg-tick, .snd-svg-band { fill: var(--snd-muted); font-size: 11px; font-family: var(--snd-font); }
.snd-legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--snd-muted); }
.snd-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }
.snd-bars { display: grid; gap: 6px; }
.snd-bar-row { display: grid; grid-template-columns: minmax(90px, 220px) 1fr 60px; gap: 8px; align-items: center; font-size: 13px; }
.snd-bar-t { height: 12px; background: var(--snd-line); border-radius: 6px; overflow: hidden; }
.snd-bar-t i { display: block; height: 100%; background: var(--snd-accent); }
.snd-bar-v { text-align: right; font-variant-numeric: tabular-nums; }

/* login */
.snd-login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.snd-login .snd-card { width: 100%; max-width: 420px; }
.snd-login input[type=text], .snd-login input[type=password] { width: 100%; min-height: 40px; padding: 8px; border: 1px solid var(--snd-line); border-radius: 8px; }
.snd-login input[type=submit] { min-height: 40px; padding: 8px 16px; border: 0; border-radius: 8px; background: var(--snd-accent); color: var(--snd-accent-ink); font-weight: 600; cursor: pointer; }

@media print {
  .snd-header, .snd-nav, .snd-notice, .snd-btn, .snd-tabs, .snd-toasts { display: none !important; }
  body.snd-body { background: #fff; color: #000; }
  .snd-card { border: 0; padding: 0; }
}