/* ==========================================================================
   Al-Kadhimiya Diesel Power Station — Daily Generation & Fuel Calculation
   Industrial control-room theme · mobile-first
   ========================================================================== */

:root {
  /* Chrome (dark navy) */
  --navy-950: #0A1422;
  --navy-900: #0D1B2C;
  --navy-800: #132842;
  --navy-700: #1B3557;
  --navy-100: #C7D3E2;

  /* Working surface (light) */
  --surface: #EDF1F6;
  --card: #FFFFFF;
  --field: #F7FAFD;
  --ink: #16212E;
  --muted: #5A6B7E;
  --line: #D8DFE8;
  --line-strong: #AEBBCA;

  /* Status */
  --ok: #1D7A48;      --ok-bg: #E6F4EC;   --ok-line: #9CCFB2;
  --warn: #8A5B06;    --warn-bg: #FCF3DD; --warn-line: #E4C078;
  --err: #B33227;     --err-bg: #FAEAE8;  --err-line: #E3A49E;
  --info: #1F5FBF;    --info-bg: #E9F0FB; --info-line: #A9C3EA;
  --neutral: #4A5866; --neutral-bg: #EEF1F4; --neutral-line: #C3CCD6;

  --accent: #F0A62B;  /* signal amber */

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(13, 27, 44, 0.06), 0 2px 8px rgba(13, 27, 44, 0.06);
  --mono: "SF Mono", SFMono-Regular, ui-monospace, "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --action-bar-h: 84px;
}

* { box-sizing: border-box; }

/* Class display rules (e.g. .field { display:flex }) must never defeat the
   hidden attribute. Print-mode overrides below win via higher specificity. */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--surface);
  -webkit-tap-highlight-color: transparent;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}

/* ==========================================================================
   Header
   ========================================================================== */

.app-header {
  background: var(--navy-900);
  color: #FFFFFF;
  border-top: 4px solid var(--accent);
  padding: 14px 16px 16px;
}

.header-inner { max-width: 1180px; margin: 0 auto; }

.station-id { display: flex; align-items: center; gap: 12px; }
.station-mark { width: 44px; height: 44px; flex: 0 0 auto; border-radius: 10px; }

.station-name h1 {
  margin: 0;
  font-size: 18px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--navy-100);
  font-weight: 500;
}

.report-meta { margin-top: 14px; }
.step-caption {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--navy-100);
  display: flex; align-items: center; gap: 8px;
}

.report-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.report-meta-grid .field:last-child { grid-column: 1 / -1; }

.report-meta .field label { color: var(--navy-100); }
.report-meta input, .report-meta select {
  background: var(--navy-800);
  border-color: var(--navy-700);
  color: #FFFFFF;
  color-scheme: dark;
}
.report-meta input::placeholder { color: #7C8FA6; }

/* ==========================================================================
   Tabs
   ========================================================================== */

.tabs {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  background: var(--navy-950);
  box-shadow: 0 2px 6px rgba(10, 20, 34, 0.35);
}
.tabs button {
  flex: 1;
  min-height: 52px;
  border: 0;
  background: transparent;
  color: #93A5BB;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  touch-action: manipulation;
}
.tabs button[aria-selected="true"] {
  color: #FFFFFF;
  border-bottom-color: var(--accent);
}
.tabs button:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; }

/* ==========================================================================
   Layout
   ========================================================================== */

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 12px calc(var(--action-bar-h) + env(safe-area-inset-bottom, 0px) + 24px);
}

.panel-cols { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.card-head h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.card-head h3 { margin: 0; font-size: 16px; font-weight: 700; }

.step-chip {
  display: inline-block;
  background: var(--navy-800);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
}

.hint {
  margin: 0 0 12px;
  font-size: 13.5px;
  color: var(--muted);
}
.hint strong { color: var(--ink); }

.banner {
  border: 1px solid var(--info-line);
  background: var(--info-bg);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 14px;
  margin-bottom: 12px;
}

/* ==========================================================================
   Fields & inputs
   ========================================================================== */

.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }

.field label, .check {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.unit { font-weight: 700; color: var(--muted); font-size: 12px; }
.optional { font-weight: 400; color: var(--muted); font-size: 12px; }

input[type="text"], input[type="date"], select {
  width: 100%;
  min-height: 52px;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 18px;
  color: var(--ink);
  background: var(--field);
  border: 1.5px solid var(--line-strong);
  border-radius: 10px;
  touch-action: manipulation;
}
input.num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }

input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 3px solid rgba(31, 95, 191, 0.55);
  outline-offset: 1px;
}

input.invalid { border-color: var(--err); background: var(--err-bg); }

input[type="checkbox"] {
  width: 22px; height: 22px;
  accent-color: var(--navy-800);
  flex: 0 0 auto;
}

.field-grid { display: grid; gap: 10px; }
.field-grid.two { grid-template-columns: 1fr 1fr; }

.field-hint { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); font-weight: 400; }

.field-msg {
  margin: 8px 0 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--err);
  background: var(--err-bg);
  border: 1px solid var(--err-line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.field-msg.warn { color: var(--warn); background: var(--warn-bg); border-color: var(--warn-line); }

.src-chip {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--neutral);
  background: var(--neutral-bg);
  border: 1px solid var(--neutral-line);
  border-radius: 999px;
  padding: 1px 7px;
}
.src-chip.calc-chip {
  color: var(--info);
  background: var(--info-bg);
  border-color: var(--info-line);
}

.anchor-banner { margin: 4px 0 10px; font-size: 13.5px; }

.reset-row { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.check { cursor: pointer; min-height: 32px; }

.row-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}
.row-result output {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  text-align: right;
}

/* ==========================================================================
   Engines
   ========================================================================== */

.engine-row {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 10px;
  background: #FCFDFE;
}
.engine-row.stopped { background: var(--neutral-bg); }

.engine-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.engine-name { font-size: 16px; font-weight: 800; letter-spacing: 0.01em; flex: 1; }

.icon-btn {
  border: 1px solid var(--line-strong);
  background: var(--card);
  color: var(--muted);
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
}
.icon-btn:hover { color: var(--err); border-color: var(--err-line); }

.add-engine-wrap { margin: 4px 0 2px; }
.add-engine-form { display: flex; gap: 8px; margin-top: 8px; align-items: center; }
.add-engine-form input { max-width: 130px; }

.total-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  background: var(--navy-900);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.total-line output {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

/* ==========================================================================
   Switches
   ========================================================================== */

.switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  min-height: 44px;
  touch-action: manipulation;
  user-select: none;
}
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track {
  width: 52px; height: 30px;
  background: #C2CCD8;
  border-radius: 999px;
  position: relative;
  transition: background 150ms ease-out;
  flex: 0 0 auto;
}
.switch-track::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 24px; height: 24px;
  background: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(13, 27, 44, 0.35);
  transition: transform 150ms ease-out;
}
.switch input:checked ~ .switch-track { background: var(--ok); }
.switch input:checked ~ .switch-track::after { transform: translateX(22px); }
.switch input:focus-visible ~ .switch-track { outline: 3px solid rgba(31, 95, 191, 0.55); outline-offset: 2px; }

.switch-text { font-size: 13px; font-weight: 700; min-width: 64px; }
.switch-text::before { content: attr(data-off); color: var(--muted); }
.switch input:checked ~ .switch-text::before { content: attr(data-on); color: var(--ok); }

.switch.big .switch-track { width: 64px; height: 36px; }
.switch.big .switch-track::after { width: 30px; height: 30px; }
.switch.big input:checked ~ .switch-track::after { transform: translateX(28px); }
.switch.big .switch-text { font-size: 15px; min-width: 40px; }

/* ==========================================================================
   Pumps
   ========================================================================== */

.pump-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  background: #FCFDFE;
}
.pump-info { display: flex; flex-direction: column; gap: 2px; }
.pump-info strong { font-size: 16px; }
.pump-route { font-size: 13.5px; color: var(--muted); font-weight: 600; }

/* ==========================================================================
   Tanks
   ========================================================================== */

.tank-block {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 10px;
  background: #FCFDFE;
}
.tank-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.tank-name { font-size: 15px; font-weight: 800; }
.tank-cap { font-size: 12px; color: var(--muted); font-weight: 600; }

.received-field { margin-top: 4px; padding-top: 12px; border-top: 1px dashed var(--line); }

/* ==========================================================================
   Badges & chips
   ========================================================================== */

.badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid;
  white-space: nowrap;
  vertical-align: middle;
}
.b-metered { color: var(--ok);   background: var(--ok-bg);   border-color: var(--ok-line); }
.b-calc    { color: var(--info); background: var(--info-bg); border-color: var(--info-line); }
.b-est     { color: var(--warn); background: var(--warn-bg); border-color: var(--warn-line); }
.b-manual  { color: var(--neutral); background: var(--neutral-bg); border-color: var(--neutral-line); }

.chip {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid;
  white-space: nowrap;
}
.chip-ok       { color: var(--ok);      background: var(--ok-bg);      border-color: var(--ok-line); }
.chip-warn     { color: var(--warn);    background: var(--warn-bg);    border-color: var(--warn-line); }
.chip-err      { color: var(--err);     background: var(--err-bg);     border-color: var(--err-line); }
.chip-info     { color: var(--info);    background: var(--info-bg);    border-color: var(--info-line); }
.chip-neutral  { color: var(--neutral); background: var(--neutral-bg); border-color: var(--neutral-line); }

/* ==========================================================================
   Report
   ========================================================================== */

.report-head {
  background: var(--navy-900);
  color: #FFFFFF;
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  border-top: 4px solid var(--accent);
}
.report-head h2 { margin: 0 0 2px; font-size: 18px; }
.report-head .rh-station { margin: 0; font-size: 13px; color: var(--navy-100); font-weight: 600; }
.rh-meta {
  margin: 10px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-size: 14px;
  color: #E4EAF2;
}
.rh-meta b { font-weight: 700; color: #FFFFFF; }

.saved-banner {
  margin-top: 12px;
  background: var(--navy-800);
  border: 1px solid var(--navy-700);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13.5px;
  color: #E4EAF2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.report-card { padding: 16px; }
.report-card > header {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 6px;
}

.stat-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.stat-row:last-child { border-bottom: 0; }
.stat-label { font-size: 14px; font-weight: 600; color: var(--ink); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.stat-note { font-size: 12.5px; color: var(--muted); font-weight: 500; display: block; }
.stat-value {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 19px;
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
}
.stat-value .u { font-family: var(--sans); font-size: 12px; font-weight: 700; color: var(--muted); margin-left: 3px; }
.stat-sub { display: block; font-family: var(--sans); font-size: 12px; font-weight: 500; color: var(--muted); white-space: normal; }
.stat-value.dim { color: var(--muted); }
.stat-value.warn-val { color: var(--warn); }
.stat-value.err-val { color: var(--err); }
.stat-value.ok-val { color: var(--ok); }

.hero-stat {
  margin-top: 12px;
  background: var(--navy-900);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-stat .hs-label { font-size: 12.5px; font-weight: 800; letter-spacing: 0.07em; text-transform: uppercase; color: var(--navy-100); }
.hero-stat .hs-value { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 30px; font-weight: 700; }
.hero-stat .hs-value .u { font-family: var(--sans); font-size: 14px; font-weight: 700; color: var(--navy-100); margin-left: 4px; }
.hero-stat.light { background: var(--field); color: var(--ink); border: 1px solid var(--line); }
.hero-stat.light .hs-label { color: var(--muted); }
.hero-stat.light .hs-value .u { color: var(--muted); }

.note-line {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid var(--line-strong);
  padding-left: 10px;
}

.issue {
  border-radius: var(--radius-sm);
  border: 1px solid;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}
.issue-error { color: var(--err); background: var(--err-bg); border-color: var(--err-line); }
.issue-warn  { color: var(--warn); background: var(--warn-bg); border-color: var(--warn-line); }
.issue:last-child { margin-bottom: 0; }

.transfer-route {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.transfer-route:last-of-type { border-bottom: 0; }
.tr-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.tr-name { font-size: 14.5px; font-weight: 700; }
.tr-pump { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.tr-result {
  margin-top: 6px;
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap;
}
.tr-value { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 19px; font-weight: 700; }
.tr-basis { font-size: 12.5px; color: var(--muted); }

.tank-change-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.tank-change-row:last-child { border-bottom: 0; }
.tc-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.tc-name { font-size: 14px; font-weight: 700; }
.tc-vals {
  margin-top: 4px;
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  font-size: 13px; color: var(--muted);
}
.tc-change { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 17px; font-weight: 700; color: var(--ink); }

.export-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0 10px; }

/* ==========================================================================
   History
   ========================================================================== */

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.file-btn { display: inline-flex; align-items: center; cursor: pointer; }

.history-list { display: grid; gap: 12px; grid-template-columns: 1fr; }

.history-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}
.hi-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.hi-head strong { font-size: 15.5px; }
.hi-shift { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.hi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  margin-bottom: 10px;
}
.hi-grid > div { display: flex; flex-direction: column; }
.hi-grid span { font-size: 11.5px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.hi-grid b { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 15.5px; font-weight: 700; }
.hi-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  font: inherit;
  font-weight: 700;
  border-radius: 10px;
  border: 1.5px solid var(--navy-800);
  background: var(--navy-800);
  color: #FFFFFF;
  padding: 10px 16px;
  min-height: 48px;
  cursor: pointer;
  touch-action: manipulation;
  transition: filter 150ms ease-out;
}
.btn:hover { filter: brightness(1.12); }
.btn:active { filter: brightness(0.95); }
.btn.small { min-height: 44px; padding: 8px 14px; font-size: 14.5px; }
.btn.big { width: 100%; min-height: 54px; font-size: 17px; }
.btn.primary { background: var(--navy-900); border-color: var(--navy-900); }
.btn.success { background: var(--ok); border-color: var(--ok); }
.btn.danger { background: var(--card); border-color: var(--err-line); color: var(--err); }
.btn.ghost { background: var(--card); border-color: var(--line-strong); color: var(--ink); }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ==========================================================================
   Action bar
   ========================================================================== */

.action-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--line-strong);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
}
.action-bar[hidden] { display: none; }
.action-note {
  max-width: 1180px;
  margin: 0 auto 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  min-height: 0;
}
.action-note:empty { margin-bottom: 0; }
.action-buttons { max-width: 1180px; margin: 0 auto; display: flex; gap: 10px; }

/* ==========================================================================
   Empty states & toast
   ========================================================================== */

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 48px 16px;
  font-size: 15px;
}
.empty-state p { margin: 4px 0; }
.empty-state strong { color: var(--ink); font-size: 17px; }

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--action-bar-h) + env(safe-area-inset-bottom, 0px) + 16px);
  transform: translateX(-50%);
  z-index: 60;
  background: var(--navy-900);
  color: #FFFFFF;
  font-size: 14.5px;
  font-weight: 600;
  padding: 12px 18px;
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(10, 20, 34, 0.4);
  max-width: min(92vw, 560px);
  text-align: center;
}

/* ==========================================================================
   Desktop
   ========================================================================== */

@media (min-width: 700px) {
  .station-name h1 { font-size: 22px; }
  .report-meta-grid { grid-template-columns: 1fr 1.4fr 1fr; }
  .report-meta-grid .field:last-child { grid-column: auto; }
  .action-buttons .btn.big { width: auto; min-width: 260px; margin-left: auto; }
  .action-buttons { justify-content: flex-end; }
  .action-buttons .btn.ghost.big { min-width: 160px; margin-left: 0; }
}

@media (min-width: 980px) {
  .panel-cols { columns: 2; column-gap: 16px; }
  .panel-cols > .card { break-inside: avoid; display: inline-block; width: 100%; margin-bottom: 16px; }
  .history-list { grid-template-columns: 1fr 1fr; }
  #report-root .report-grid { columns: 2; column-gap: 16px; }
  #report-root .report-grid > .card { break-inside: avoid; display: inline-block; width: 100%; }
  .hi-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ==========================================================================
   Print — daily report only
   ========================================================================== */

@media print {
  body { background: #FFFFFF; }
  .app-header, .tabs, .action-bar, #toast,
  #panel-entry, #panel-history, #report-empty,
  .export-row, .saved-banner button { display: none !important; }
  #panel-report { display: block !important; }
  #panel-report[hidden] { display: block !important; }
  main { padding: 0; max-width: none; }
  .card, .history-item { box-shadow: none; break-inside: avoid; }
  .report-head { background: #FFFFFF !important; color: #000000 !important; border: 2px solid #000000; border-radius: 0; }
  .report-head .rh-station, .rh-meta, .rh-meta b { color: #000000 !important; }
  .hero-stat { background: #FFFFFF !important; color: #000000 !important; border: 2px solid #000000; }
  .hero-stat .hs-label, .hero-stat .hs-value .u { color: #000000 !important; }
  #report-root .report-grid { columns: 1; }
}