/* calibrate.css — the calibration wizard (js/ui/calibrate-screen.js).
 *
 * The plan fills the screen; one step at a time sits in a panel below it on
 * a phone (beside it on a wide screen or a phone held sideways), so the plan
 * and the next button are both in reach of a thumb. Numbers that matter
 * (precision, error) are big and bold for bright sun. Only the tokens from
 * css/app.css are used, so light and dark both follow them.
 */

/* ---- layout ---------------------------------------------------------------- */

.cal-main {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.cal-stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 180px;
  background: var(--surface-3);
  overflow: hidden;
}
.cal-view { position: absolute; inset: 0; }

.cal-overlay {
  position: absolute;
  z-index: 6;
  top: 10px;
  left: max(10px, var(--safe-left));
  right: max(10px, var(--safe-right));
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  pointer-events: none;
}
.cal-overlay > * { pointer-events: auto; }
.cal-chip { box-shadow: var(--shadow); }
.cal-allow { min-height: 36px; box-shadow: var(--shadow); }

.cal-panel {
  position: relative;
  z-index: 5;
  flex: none;
  max-height: 56%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 14px max(16px, var(--safe-right)) calc(16px + var(--safe-bottom)) max(16px, var(--safe-left));
  background: var(--surface);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 18px rgba(16, 24, 40, 0.10);
}
.cal-panel.compact {
  padding-top: 10px;
  padding-bottom: calc(10px + var(--safe-bottom));
}
.cal-panel > * + * { margin-top: 10px; }
.cal-panel p { margin: 0; }

/* A mode with nothing to show on the plan (the compass needs a calibration first). */
.cal-main.solo .cal-stage { display: none; }
.cal-main.solo .cal-panel { flex: 1 1 auto; max-height: none; border-top: 0; box-shadow: none; }

@media (min-width: 900px), (orientation: landscape) and (max-height: 560px) {
  .cal-main { flex-direction: row; }
  .cal-panel {
    width: min(420px, 46%);
    max-height: none;
    border-top: 0;
    border-left: 1px solid var(--border);
    box-shadow: none;
    padding-top: 16px;
  }
}

.cal-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  color: var(--text-muted);
  font-weight: 600;
}

/* ---- steps and text ----------------------------------------------------------- */

.cal-steps { display: flex; flex-wrap: wrap; gap: 6px; }
.cal-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}
.cal-step.done { background: var(--ok); color: #fff; }
.cal-step.now { border-color: var(--brand); background: var(--brand-tint); color: var(--brand); }
.cal-step.done.now { background: var(--ok); color: #fff; }

.cal-h {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 19px;
  font-weight: 780;
  line-height: 1.25;
}
.cal-h.cal-ok { color: var(--ok); }

.cal-tip {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14.5px;
}
.cal-tip > span:first-child { flex: none; color: var(--accent); margin-top: 1px; }

.cal-live {
  font-size: 15px;
  font-weight: 650;
  color: var(--text);
}
.cal-picking {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
}
.cal-picking > span:first-child { flex: none; color: var(--brand); }

.cal-big {
  font-size: 36px;
  line-height: 1.1;
  font-weight: 820;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.cal-banner { font-size: 14.5px; }
.cal-banner-ic { flex: none; margin-top: 1px; }
.cal-banner.warn .cal-banner-ic { color: var(--warn); }
.cal-banner.err .cal-banner-ic { color: var(--danger); }
.cal-banner.ok .cal-banner-ic { color: var(--ok); }
.cal-banner:not(.warn):not(.err):not(.ok) .cal-banner-ic { color: var(--accent); }
.cal-banner-t { display: block; margin-bottom: 2px; font-weight: 750; }
.cal-banner .btn { margin-top: 8px; }

.cal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cal-actions > .btn { flex: 1 1 auto; }
.cal-actions > .btn-ghost { flex: 0 1 auto; }

/* A step's last row of buttons that must stay in reach (Cancel / Done while
   measuring): on a small phone in a Safari tab the panel is only ~275 px
   tall, so it sticks to the foot of the panel and the text scrolls under it.
   Only ever the panel's last child, so nothing after it is covered; the
   shadow paints the panel's bottom padding below it, so text scrolling
   under shows only above the buttons. */
.cal-panel > .cal-dock:last-child {
  position: sticky;
  bottom: 0;
  z-index: 1;
  margin-top: 2px;            /* + the padding: the usual 10 px gap */
  padding-top: 8px;
  background: var(--surface);
  box-shadow: 0 calc(16px + var(--safe-bottom)) 0 var(--surface);
}

/* ---- measuring ------------------------------------------------------------------ */

.cal-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
@media (min-width: 420px) {
  .cal-panel .cal-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
  .cal-panel .cal-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.cal-stat {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  min-width: 0;
}
.cal-stat .v {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-stat .k {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.cal-meter {
  position: relative;
  height: 10px;
  border-radius: 5px;
  background: var(--surface-3);
  overflow: hidden;
}
.cal-meter-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.25s linear;
}
.cal-meter-min {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--text);
  opacity: 0.45;
}

/* ---- results ---------------------------------------------------------------------- */

.cal-result > * + * { margin-top: 12px; }
.cal-result-head { display: flex; align-items: center; gap: 12px; }
.cal-result-acc {
  font-size: 26px;
  font-weight: 820;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

/* Solid colours with strong text: readable in sun, and in both themes. */
.cal-quality {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 17px;
  font-size: 19px;   /* large bold text: white on green stays readable */
  font-weight: 800;
  white-space: nowrap;
  background: var(--surface-3);
  color: var(--text);
}
.cal-quality.good { background: var(--ok); color: #fff; }
.cal-quality.fair { background: var(--warn); color: #1d1500; }
.cal-quality.poor { background: var(--danger); color: #fff; }
.cal-quality.small { min-height: 24px; padding: 0 9px; border-radius: 12px; font-size: 13px; }
.cal-quality.small.good { color: #04210f; }

.cal-detail { color: var(--text); }
.cal-prov {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: 14.5px;
}
.cal-prov > .cal-quality { flex: none; }

.cal-facts {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  margin: 0;
}
.cal-facts dt { font-size: 13px; font-weight: 700; color: var(--text-muted); padding-top: 2px; }
.cal-facts dd { margin: 0; font-weight: 700; }
.cal-facts dd .s { font-size: 12.5px; font-weight: 500; color: var(--text-muted); }

.cal-north { display: inline-flex; align-items: center; gap: 6px; vertical-align: middle; }
.cal-north-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--brand);
  transform-origin: 50% 50%;
}

.cal-result .section-title { margin: 14px 2px 6px; }
.cal-points .list-row { min-height: 56px; gap: 10px; padding: 8px 8px 8px 12px; }
.cal-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--surface-3);
  color: var(--text);
  font-weight: 800;
  font-size: 14px;
}
.cal-num.good { background: var(--ok); color: #04210f; }   /* small digits: dark on green for contrast */
.cal-num.fair { background: var(--warn); color: #1d1500; }
.cal-num.poor { background: var(--danger); color: #fff; }

.cal-warns { display: flex; flex-direction: column; gap: 8px; }
.cal-warn-btn { margin-top: 8px; }
.cal-before { margin: 0; }

/* ---- scale line ---------------------------------------------------------------------- */

.cal-len { font-size: 22px; font-weight: 700; min-height: 56px; letter-spacing: 0.02em; }
.cal-echo { font-size: 17px; font-weight: 750; color: var(--ok); min-height: 1.4em; }
.cal-echo.bad { color: var(--danger); }

/* ---- compass dial -------------------------------------------------------------------- */

.cal-dial-box { display: flex; align-items: center; gap: 14px; }
.cal-dial svg { display: block; }
.cal-dial .ring { fill: var(--surface-2); stroke: var(--border); stroke-width: 2; }
.cal-dial .up { fill: var(--text-muted); font-size: 9px; font-weight: 700; font-family: var(--font); }
.cal-dial .wall line { stroke: var(--brand); stroke-width: 5; stroke-linecap: round; }
.cal-dial .wall path { fill: var(--brand); }
.cal-dial .cam line { stroke: var(--me); stroke-width: 3; stroke-linecap: round; }
.cal-dial .cam circle { fill: var(--me); }
.cal-dial .hub { fill: var(--text); }
.cal-dial-legend { display: flex; flex-direction: column; gap: 6px; font-weight: 650; }
.cal-dial-legend .k { display: inline-flex; align-items: center; gap: 8px; }
.cal-dial-legend .k::before { content: ""; width: 18px; height: 5px; border-radius: 3px; background: var(--brand); }
.cal-dial-legend .k.cam::before { height: 3px; background: var(--me); }

/* ---- satellite map alignment ---------------------------------------------------------- */

.cal-seg { box-shadow: var(--shadow); margin-left: auto; }
.cal-seg button { min-height: 40px; padding: 0 16px; }
.cal-seg button:disabled { opacity: 0.5; }

/* Phone: one view at a time. They stay laid out (visibility, not display),
   so the map keeps its size and does not need to reload tiles on switch. */
.cal-stage.cal-split[data-show="plan"] .cal-map,
.cal-stage.cal-split[data-show="map"] .cal-plan {
  visibility: hidden;
  pointer-events: none;
}
@media (min-width: 900px) {
  .cal-stage.cal-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    gap: 2px;
    background: var(--border);
  }
  .cal-stage.cal-split .cal-view { position: relative; inset: auto; min-height: 0; background: var(--surface-3); }
  .cal-stage.cal-split[data-show] .cal-map,
  .cal-stage.cal-split[data-show] .cal-plan { visibility: visible; pointer-events: auto; }
  .cal-stage.cal-split .cal-overlay { grid-column: 1 / -1; }
  .cal-seg { display: none; }
}

.cal-search { display: flex; gap: 8px; margin: 0; }
.cal-search .input { flex: 1 1 auto; min-width: 0; }
.cal-search .btn { flex: none; }

/* ---- start page ------------------------------------------------------------------------ */

.cal-start > * + * { margin-top: 12px; }
.cal-start .section-title { margin-top: 22px; margin-bottom: 8px; }
.cal-status > * + * { margin-top: 10px; }
.cal-opt { min-height: 72px; }
.cal-opt .grow > .s { line-height: 1.35; }
.cal-opt-ic {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--brand-tint);
  color: var(--brand);
}
.list-row .cal-opt-ic .ic { color: var(--brand); }
.cal-chev { flex: none; color: var(--text-faint); }
.cal-howto h3 { font-size: 16px; margin-bottom: 8px; }
.cal-howto p { font-size: 14.5px; }
.cal-howto p:last-child { margin-bottom: 0; }