/* Ropes & Recovery Gear. Colours follow psyphin.co.za (css/style.css there);
   based on the SA Towing Check stylesheet, so the tools look the same. */
:root {
  --bg: #020203;
  --surface: #111418;
  --surface-2: #181c21;
  --border: #262c33;
  --text: #e6ebef;
  --text-muted: #9aa4ae;
  --accent: #3fb6ff;
  --accent-strong: #1e8fff;

  /* traffic light */
  --pass: #4ade80;
  --warn: #fbbf24;
  --fail: #f87171;
  --info: #3fb6ff;
  --incomplete: #7b8590;

  /* panel accents */
  --legal: #3fb6ff;
  --maker: #c084fc;

  /* chart series (validated for colour-blind separation on --surface-2) */
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #9085e9;
  --series-4: #d55181;
  --series-neutral: #7b8590;

  /* under construction banner */
  --construction: #fbbf24;
  --construction-ink: #1a1405;

  --radius: 14px;
  --max-width: 1100px;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Rajdhani", "Segoe UI", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* elements with display rules below must still hide (modes, trailer fields) */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* Faint circuit-trace pattern behind the top of the page, the same as
   psyphin.co.za's (css/style.css there); it fades out downwards. */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1100px;
  z-index: -1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' fill='none'%3E%3Cg stroke='%233fb6ff' stroke-opacity='0.09' stroke-width='1'%3E%3Cpath d='M0 40h46l18 18h44M108 58v42l18 18h54M24 180v-44l18-18h34M180 22h-34L124 0M76 118v-20l-14-14H0M146 180v-26l12-12h22'/%3E%3C/g%3E%3Cg fill='%233fb6ff' fill-opacity='0.16'%3E%3Ccircle cx='108' cy='58' r='2.2'/%3E%3Ccircle cx='76' cy='118' r='2.2'/%3E%3Ccircle cx='146' cy='22' r='2.2'/%3E%3Ccircle cx='146' cy='154' r='2.2'/%3E%3C/g%3E%3C/svg%3E");
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.6) 45%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.6) 45%, transparent 100%);
}

a {
  color: var(--accent);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 10;
  background: var(--surface);
  padding: 8px 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.muted {
  color: var(--text-muted);
}

/* ------------------------------------------------------------ header / footer */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(2, 2, 3, 0.92);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(6px);
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* back link pill: same design as fuel.psyphin.co.za's header link */
.back-link {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding: 8px 16px 8px 12px;
  border: 1px solid rgba(61, 155, 255, 0.45);
  border-radius: 999px;
  background: rgba(61, 155, 255, 0.08);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.back-link-arrow {
  color: var(--accent);
  font-size: 17px;
  transition: transform 0.15s ease;
}

.back-link-domain {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 13px;
}

.back-link:hover {
  background: rgba(61, 155, 255, 0.16);
  border-color: var(--accent);
  box-shadow: 0 0 18px rgba(61, 155, 255, 0.25);
}

.back-link:hover .back-link-arrow {
  transform: translateX(-3px);
}

.back-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* phones: the pill, page links and shield share one row, so drop the domain,
   keep the pill on one line and shorten it to "← PsyPhin tools" */
@media (max-width: 480px) {
  .back-link-domain {
    display: none;
  }

  .back-link {
    flex-wrap: nowrap;
    white-space: nowrap;
  }
}

@media (max-width: 420px) {
  .back-link-more {
    display: none;
  }

  .back-link {
    padding: 7px 12px 7px 10px;
    gap: 8px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .back-link,
  .back-link-arrow {
    transition: none;
  }
}

.nav {
  display: flex;
  gap: 18px;
}

/* page links + PsyPhin shield (a copy of psyphin.co.za's brand-64.png), top right */
.header-end {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: block;
  flex: none;
  border-radius: 6px;
}

.brand img {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.brand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 420px) {
  .site-header-inner {
    gap: 12px;
  }

  .header-end,
  .nav {
    gap: 12px;
  }

  .nav a {
    font-size: 1rem;
  }

  .brand img {
    width: 28px;
    height: 28px;
  }
}

@media (max-width: 350px) {
  .site-header-inner {
    padding-left: 12px;
    padding-right: 12px;
  }

  .site-header-inner,
  .header-end,
  .nav {
    gap: 8px;
  }

  .back-link {
    padding: 6px 10px 6px 8px;
    gap: 6px;
  }
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 20px 0 32px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.site-footer p {
  margin: 4px 0;
}

/* ------------------------------------------------------------ intro */
.intro {
  padding: 28px 0 8px;
}

.intro h1 {
  font-size: clamp(2rem, 6vw, 2.8rem);
  color: var(--text);
}

.lede {
  max-width: 62ch;
  margin: 10px 0 6px;
  color: var(--text);
}

.privacy {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ------------------------------------------------------------ modes */
.modes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-top: 20px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 760px;
}

/* phones: two rows of two */
@media (max-width: 560px) {
  .modes {
    grid-template-columns: 1fr 1fr;
  }
}

.mode-button small {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.8;
}

.mode-button {
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.15;
  min-height: 44px;
  padding: 6px 8px;
  color: var(--text-muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
}

.mode-button:hover {
  color: var(--text);
}

.mode-button[aria-pressed="true"] {
  color: #0b0d10;
  background: var(--accent);
}

.mode-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.mode-hint {
  margin: 8px 0 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.jump-link {
  white-space: nowrap;
}

.results {
  scroll-margin-top: 64px; /* clear the sticky header */
}

@media (min-width: 900px) {
  .jump-link {
    display: none;
  }
}

/* ------------------------------------------------------------ layout */
.layout {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

@media (min-width: 900px) {
  .layout {
    grid-template-columns: minmax(300px, 380px) 1fr;
    align-items: start;
  }
}

/* ------------------------------------------------------------ form */
.inputs fieldset {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  margin: 0 0 16px;
  padding: 14px 16px 6px;
  min-width: 0;
}

.inputs legend {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  padding: 0 6px;
  color: var(--accent);
}

.field {
  margin-bottom: 14px;
}

.field > label,
.field > .label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.hint {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

input[type="number"],
select {
  width: 100%;
  font: inherit;
  font-size: 1rem; /* 16px stops iOS zooming on focus */
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  min-height: 44px;
}

input[type="number"]:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.unit-input {
  display: flex;
  align-items: stretch;
}

.unit-input input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.unit-input span {
  display: flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-left: 0;
  border-radius: 0 10px 10px 0;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.choice label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.3;
  padding: 10px 12px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  cursor: pointer;
  font-weight: 500;
}

.choice label small {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 400;
  margin-top: 2px;
}

.choice .choice-wide {
  grid-column: 1 / -1;
}

.field > .label small {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.choice label:has(input:checked) {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.choice input {
  accent-color: var(--accent);
  flex: none;
  width: 18px;
  height: 18px;
  margin: 0;
}

.help {
  margin-top: 8px;
  font-size: 0.875rem;
}

.help summary {
  cursor: pointer;
  color: var(--accent);
}

.help-body {
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: 10px;
}

.help-body p {
  margin: 0 0 6px;
}

.help-body > ul {
  margin: 0 0 6px;
  padding-left: 1.2em;
}

.help-body li {
  margin-bottom: 3px;
}

.fieldset-hint {
  margin: 0 0 12px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 10px;
}

.field-row > .field > label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.field-row-hint {
  margin: -8px 0 14px;
}

.fieldset-details > summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.fieldset-details > summary small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* if the heading wraps, "(optional)" goes with the last word, never alone */
.summary-tail {
  white-space: nowrap;
}

/* phones: keep "(optional)" on the heading's line */
@media (max-width: 420px) {
  .fieldset-details > summary {
    font-size: 1.05rem;
  }

  .fieldset-details > summary small {
    font-size: 0.75rem;
  }
}

.inputs fieldset:has(> .fieldset-details) {
  padding-top: 12px;
}

/* load list builder */
.load-list {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

.load-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 6px 8px;
  align-items: end;
  padding: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.load-row input[type="text"] {
  grid-column: 1 / -1;
}

.load-row input {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  min-height: 44px;
}

.load-row input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.load-num span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.load-remove {
  min-width: 44px;
  min-height: 44px;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.load-remove:hover {
  color: var(--fail);
  border-color: var(--fail);
}

.load-add {
  display: flex;
  gap: 8px;
}

.load-add select {
  flex: 1;
  min-width: 0;
}

.load-total {
  margin: 10px 0 12px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.load-total strong {
  color: var(--text);
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 10px;
  cursor: pointer;
}

.button--ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}

.button--ghost:hover {
  border-color: var(--accent);
}

.button--primary {
  background: var(--accent);
  color: #0b0d10;
  border: 1px solid var(--accent);
}

.button--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ------------------------------------------------------------ results */
.overall {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  font-weight: 600;
  margin-bottom: 16px;
  --tone: var(--incomplete);
  border-left: 5px solid var(--tone);
}

.overall--pass,
.overall--info {
  --tone: var(--pass);
}

.overall--warn {
  --tone: var(--warn);
}

.overall--fail {
  --tone: var(--fail);
}

.status-icon {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--tone);
  color: #0b0d10;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1;
}

.panel {
  border: 1px solid var(--border);
  border-top: 4px solid var(--panel-color);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.panel--legal {
  --panel-color: var(--legal);
}

.panel--maker {
  --panel-color: var(--maker);
}

.panel h2 {
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.panel-tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--panel-color);
  border: 1px solid var(--panel-color);
  border-radius: 999px;
  padding: 2px 8px;
}

.panel > p {
  margin: 10px 0 0;
}

.checks {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.check {
  --tone: var(--incomplete);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 5px solid var(--tone);
  border-radius: 12px;
  padding: 12px 14px;
}

.check--pass { --tone: var(--pass); }
.check--warn { --tone: var(--warn); }
.check--fail { --tone: var(--fail); }
.check--info { --tone: var(--info); }

.check-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* the title wraps beside its icon (never leaving the icon alone); a long
   status label drops to its own line only when both won't fit */
.check-head h3 {
  font-size: 1.15rem;
  flex: 1 1 9rem;
  min-width: 0;
}

.status-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--tone);
  text-align: right;
}

.check-reason {
  margin: 8px 0 0;
}

.check-notes {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.check-notes li + li {
  margin-top: 2px;
}

/* a card's explanatory notes, folded away */
.more-detail {
  margin-top: 8px;
  font-size: 0.85rem;
}

.more-detail > summary {
  cursor: pointer;
  width: fit-content;
  color: var(--accent);
}

.more-detail > .check-notes {
  margin-top: 4px;
}

/* one outcome per vehicle type, when the type was left blank */
.variants {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.variant {
  --tone: var(--incomplete);
  padding: 8px 10px;
  border-left: 3px solid var(--tone);
  border-radius: 8px;
  background: var(--surface);
}

.variant--pass { --tone: var(--pass); }
.variant--warn { --tone: var(--warn); }
.variant--fail { --tone: var(--fail); }
.variant--info { --tone: var(--info); }

.variant-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.variant-head .status-icon {
  width: 20px;
  height: 20px;
  font-size: 0.75rem;
}

.variant-head strong {
  flex: 1 1 9rem;
  min-width: 0;
}

.variant-head .status-label {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--tone);
}

.variant p {
  margin: 4px 0 0;
}

/* meter: fill carries the status; the track is a dim step of the same colour */
.meter {
  --tone: var(--incomplete);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.meter--pass { --tone: var(--pass); }
.meter--warn { --tone: var(--warn); }
.meter--fail { --tone: var(--fail); }
.meter--info { --tone: var(--info); }

.meter-track {
  flex: 1;
  height: 10px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--tone) 22%, var(--surface-2));
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--tone);
}

.meter-text {
  flex: none;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.panel-intro {
  font-size: 0.875rem;
}

.panel-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  font-weight: 600;
  --tone: var(--incomplete);
}

.panel-summary.overall--pass { --tone: var(--pass); }
.panel-summary.overall--warn { --tone: var(--warn); }
.panel-summary.overall--fail { --tone: var(--fail); }

.table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}

.limit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.limit-table th,
.limit-table td {
  text-align: left;
  padding: 7px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.limit-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.limit-table .num {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.limit-table tr.is-binding td {
  font-weight: 600;
  background: var(--surface-2);
}

.limit-table tr.is-binding td:first-child {
  box-shadow: inset 3px 0 0 var(--accent);
}

/* tables stay tables on phones; .table-wrap scrolls the wide ones */

/* compact citations on the checker: plain rule names linking to the sources page */
.rule-links {
  margin: 10px 0 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.rule-links-label {
  margin-right: 6px;
}

.rule-links ul {
  display: inline;
  list-style: none;
  margin: 0;
  padding: 0;
}

.rule-links li {
  display: inline;
}

.rule-links li + li::before {
  content: "\00B7";
  margin: 0 6px;
  color: var(--text-muted);
}

.rule-links a {
  font-weight: 600;
}

.rule-ref {
  font-weight: 400;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.4;
  padding: 1px 7px;
  border-radius: 999px;
  white-space: nowrap;
  vertical-align: 1px;
}

.badge--unverified {
  color: var(--warn);
  border: 1px dashed var(--warn);
}

.badge--verified {
  color: var(--pass);
  border: 1px solid var(--pass);
}

.disclaimer {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.disclaimer strong {
  color: var(--text);
}

.disclaimer {
  scroll-margin-top: 72px; /* clear the sticky header when jumped to */
}

.disclaimer h2 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 0 0 6px;
}

.disclaimer p {
  margin: 0;
}

.disclaimer p + p {
  margin-top: 6px;
}

/* "Legal disclaimer" link, top of the page */
.disclaimer-link {
  margin: 0 0 6px;
  font-size: 0.85rem;
}

.disclaimer-link a {
  color: var(--text-muted);
}

.disclaimer-link a:hover {
  color: var(--accent);
}

.explainer {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 12px;
}

.explainer summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}

.explainer ol {
  padding-left: 20px;
}

.explainer ol > li + li {
  margin-top: 10px;
}

.example {
  background: var(--surface-2);
  border-radius: 10px;
  padding: 10px 12px;
}

/* ------------------------------------------------------------ sources page */
.source-group {
  margin-top: 28px;
}

.source-group > h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.source-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.source-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
}

.source-item h3 {
  font-size: 1.15rem;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.source-item p {
  margin: 6px 0 0;
}

.source-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.source-meta a {
  overflow-wrap: anywhere;
}

.source-item {
  scroll-margin-top: 70px;
}

.source-item:target,
.source-item:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.source-group {
  scroll-margin-top: 70px;
}

.sources-summary {
  width: 100%;
  margin-top: 20px;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.sources-summary th,
.sources-summary td {
  text-align: left;
  padding: 7px 8px;
  border-bottom: 1px solid var(--border);
}

.sources-summary thead th {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sources-summary .num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.open-questions {
  padding-left: 22px;
}

.open-questions li + li {
  margin-top: 8px;
}

.oq-rules {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* the key figures, before the cards */
.figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.figure {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.figure-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.figure-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.9rem;
  line-height: 1.1;
}

.figure-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ------------------------------------------------------------ print */
/* ------------------------------------------------------------ print */
.results-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

/* one column: the form's Print summary button sits just above, so don't repeat it */
@media (max-width: 899px) {
  .results-actions {
    display: none;
  }
}

.print-only {
  display: none;
}

@media print {
  :root {
    --bg: #fff;
    --surface: #fff;
    --surface-2: #f4f5f6;
    --border: #bbb;
    --text: #000;
    --text-muted: #444;
    --accent: #0645ad;
    --legal: #0645ad;
    --maker: #6b21a8;
    --pass: #15803d;
    --warn: #b45309;
    --fail: #b91c1c;
    --info: #1d4ed8;
    --incomplete: #6b7280;
  }

  @page {
    margin: 14mm;
  }

  body {
    font-size: 10.5pt;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .site-header,
  .modes,
  .mode-hint,
  .inputs,
  .results-actions,
  .explainers,
  .help,
  .more-detail,
  .skip-link {
    display: none !important;
  }

  .intro .lede,
  .intro .privacy {
    display: none;
  }

  .intro {
    padding-top: 0;
  }

  .layout {
    display: block;
    margin-top: 0;
  }

  .print-only {
    display: block;
    margin-bottom: 14px;
  }

  .check-notes.print-only {
    margin-bottom: 0;
  }

  .status-icon {
    color: #fff;
  }

  .panel,
  .limit-tile,
  .overall,
  .disclaimer {
    border-color: var(--border);
  }

  .check,
  .tow-card,
  .tow-speed,
  .limit-tile,
  .rig-figure,
  .print-table,
  tr {
    break-inside: avoid;
  }

  .panel h2,
  .limit-tile h2 {
    break-after: avoid;
  }

  a {
    color: var(--text);
  }

  .site-footer {
    margin-top: 16px;
  }
}

.print-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 10px;
}

.print-table caption {
  text-align: left;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  padding-bottom: 4px;
}

.print-table th,
.print-table td {
  text-align: left;
  vertical-align: top;
  padding: 5px 8px;
  border: 1px solid var(--border);
}

.print-table tbody th {
  width: 34%;
  font-weight: 600;
}

.write-in-table .write-in {
  width: 30%;
  height: 2.2em;
}

.print-meta {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}


/* ------------------------------------------------------------ header
   The same header as fuel.psyphin.co.za (.brand-bar in its style.css):
   black band with a blue glow, the PsyPhin logo, a blue eyebrow, the title
   and a one-line description. Keep the three in step. */
.brand-bar {
  position: relative;
  background:
    radial-gradient(ellipse 60% 120% at 100% 0%, rgba(61, 155, 255, 0.18), transparent 60%),
    #000000;
  color: #ffffff;
  border-bottom: 1px solid rgba(61, 155, 255, 0.35);
  padding-top: env(safe-area-inset-top, 0px);
}

.brand-nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.brand-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 28px;
}

.brand-logo-link {
  flex-shrink: 0;
  display: block;
  border-radius: 8px;
}

.brand-logo-link:focus-visible {
  outline: 2px solid #3d9bff;
  outline-offset: 3px;
}

.brand-logo {
  width: 168px;
  height: auto;
  display: block;
}

.brand-text {
  flex: 1 1 360px;
  min-width: 0;
}

.brand-eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #3d9bff;
}

.brand-bar h1,
.brand-title {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-bar .subtitle {
  margin: 0;
  color: #a9b4c2;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.6;
}

@media (max-width: 760px) {
  .brand-nav {
    padding: 10px 16px 0;
  }

  .brand-inner {
    padding: 16px;
    gap: 14px 18px;
  }

  .brand-logo {
    width: 112px;
  }

  .brand-text {
    flex-basis: 200px;
  }

  .brand-bar .subtitle {
    font-size: 14px;
  }
}

@media print {
  .brand-bar,
  body::before {
    display: none;
  }
}

/* ============================================================ Shared tool parts (as on the winching page) */

/* ------------------------------------------------------------ under construction (same as the tyre calculator) */
.construction {
  background: repeating-linear-gradient(-45deg, var(--construction) 0 18px, #f59e0b 18px 36px);
  color: var(--construction-ink);
  text-align: center;
  padding: 10px 16px;
  font-size: 0.95rem;
  line-height: 1.4;
}

.construction strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-right: 4px;
}

.intro .lede {
  max-width: 70ch;
  margin: 0 0 6px;
}

.intro .privacy a {
  color: var(--text-muted);
}

/* ------------------------------------------------------------ the stage: one card holding everything */
.stage {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  overflow: hidden;
}

.try {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.try-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-right: 2px;
}

.try-chip {
  font: inherit;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  min-height: 34px;
  cursor: pointer;
}

.try-chip:hover {
  border-color: var(--accent);
}

/* ------------------------------------------------------------ scene */
.scene {
  position: relative;
  background: #0a0e13;
}

.scene-pic {
  position: relative;
  aspect-ratio: 800 / 380;
}

.scene-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
/* overlays: typed fields and labels sit on the picture */
.scene-field,
.scene-tag {
  position: absolute;
  transform: translate(-50%, -50%);
  transition: left 0.7s cubic-bezier(0.3, 0.7, 0.2, 1), top 0.7s cubic-bezier(0.3, 0.7, 0.2, 1);
  z-index: 2;
}

.scene-field {
  display: grid;
  gap: 2px;
  padding: 7px 10px 8px;
  border-radius: 12px;
  background: rgba(10, 14, 19, 0.82);
  border: 1px solid rgba(63, 182, 255, 0.55);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  min-width: 132px;
  max-width: 160px;
  cursor: text;
}

.scene-field.is-unclear { border-color: var(--warn); }

.sf-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.sf-input {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.sf-input input {
  width: 100%;
  min-width: 0;
  background: transparent;
  border: 0;
  border-bottom: 1px dashed rgba(230, 235, 239, 0.35);
  color: var(--text);
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.1;
  padding: 0 0 2px;
}

.sf-input input:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.sf-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.scene-field.is-unclear .sf-hint { color: var(--warn); }

/* phones: the typed fields drop below the picture; the labels stay on it */
@media (max-width: 860px) {
  /* app.js moves .scene-fields out of the picture on narrower screens */
  .scene > .scene-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px 12px 0;
    background: var(--surface);
  }

  .scene > .scene-fields .scene-field {
    position: static;
    transform: none;
    min-width: 0;
    max-width: none;
  }

  .scene > .scene-fields .scene-field--anchor { grid-column: 1 / -1; }
  .scene > .scene-fields .scene-field--anchor .sf-input input { width: 5em; }

  .scene-tag { font-size: 0.62rem; padding: 2px 6px; }
  .scene-tag strong { font-size: 0.85rem; }
}

/* ------------------------------------------------------------ controls under the scene */
.controls {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
  gap: 14px 22px;
  padding: 16px;
}

/* the rope angle sits in the rope section, above the top view */

.ctl-label small {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

@media (min-width: 900px) {
  .controls { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .controls { grid-template-columns: 1fr; }
}

.ctl-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: inherit;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 11px 5px 7px;
  min-height: 36px;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}

.chip:hover { border-color: var(--text-muted); }

.chip[aria-checked="true"] {
  border-color: var(--accent);
  background: rgba(63, 182, 255, 0.12);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.chip:focus-visible,
.pick:focus-visible,
.seg button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chip sup { color: var(--warn); }

.chip-swatch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid;
  flex: none;
}

.seg {
  display: inline-flex;
  padding: 3px;
  gap: 3px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.seg button {
  font: inherit;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: transparent;
  border: 0;
  border-radius: 7px;
  padding: 5px 10px;
  min-height: 32px;
  cursor: pointer;
  white-space: nowrap;
}

.seg button[aria-checked="true"] {
  background: var(--accent);
  color: #0b0d10;
  font-weight: 600;
}

/* ------------------------------------------------------------ verdict and balance */
.verdict {
  --tone: var(--incomplete);
  margin: 0 16px 16px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 5px solid var(--tone);
}

.verdict--pass { --tone: var(--pass); }
.verdict--warn { --tone: var(--warn); }
.verdict--fail { --tone: var(--fail); }
.verdict--info { --tone: var(--info); }

.verdict-top {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.verdict-top .status-icon { width: 30px; height: 30px; font-size: 1rem; margin-top: 2px; }

.verdict-head {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.15;
}

.verdict-detail {
  margin: 4px 0 0;
  color: var(--text);
}

.verdict-sub {
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.fix {
  margin-top: 10px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: #0b0d10;
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  padding: 8px 14px;
  min-height: 40px;
  cursor: pointer;
}

.fix:hover { background: var(--accent-strong); }

.balance { margin-top: 14px; display: grid; gap: 8px; }

.bal-row {
  display: grid;
  grid-template-columns: minmax(0, 13em) minmax(0, 1fr) 6.5em;
  align-items: center;
  gap: 10px;
}

.bal-name { font-size: 0.85rem; color: var(--text-muted); }

.bal-val {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.bal-bar {
  position: relative;
  display: flex;
  gap: 2px;
  height: 18px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--border) 60%, transparent);
}

.bal-seg {
  height: 100%;
  transition: width 0.6s cubic-bezier(0.3, 0.7, 0.2, 1);
}

.bal-seg:first-child { border-radius: 4px 0 0 4px; }
.bal-seg:last-of-type { border-radius: 0 4px 4px 0; }
.bal-winch { background: #e6ebef; border-radius: 4px !important; }

.bal-tick {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 2px;
  background: var(--text);
  transition: left 0.6s cubic-bezier(0.3, 0.7, 0.2, 1);
}

.seg-1 { background: var(--series-1); }
.seg-2 { background: var(--series-2); }
.seg-3 { background: var(--series-3); }
.seg-4 { background: var(--series-4); }
.seg-margin { background: repeating-linear-gradient(45deg, var(--series-neutral) 0 3px, transparent 3px 7px); box-shadow: inset 0 0 0 1px var(--series-neutral); }

.bal-legend {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.bal-legend li { display: flex; align-items: center; }

.swatch {
  display: inline-block;
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  margin-right: 6px;
}

@media (max-width: 560px) {
  .bal-row { grid-template-columns: minmax(0, 1fr) auto; }
  .bal-bar { grid-column: 1 / -1; grid-row: 2; }
  .verdict-head { font-size: 1.3rem; }
}

/* ------------------------------------------------------------ parts of the stage */
.part {
  border-top: 1px solid var(--border);
  padding: 16px;
}

.part-label {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}

/* rope picker */
.picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 8px;
}

.pick {
  --tone: var(--incomplete);
  display: grid;
  justify-items: center;
  gap: 2px;
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 6px 10px;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}

.pick:hover { border-color: var(--text-muted); }

.pick[aria-checked="true"] {
  border-color: var(--accent);
  background: rgba(63, 182, 255, 0.1);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.pick--pass { --tone: var(--pass); }
.pick--warn { --tone: var(--warn); }
.pick--fail { --tone: var(--fail); }

.thumb-svg { width: 100%; max-width: 150px; height: auto; }

.pick-name { font-weight: 600; font-size: 0.9rem; }

.pick-sub {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 420px) {
  .pick-name { font-size: 0.8rem; }
  .pick-sub { font-size: 0.68rem; }
}

.mini-field input {
  width: 4.2em;
  min-height: 0;
  padding: 2px 4px;
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-align: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.mini-field input:focus { outline: 2px solid var(--accent); outline-offset: 0; }

/* ------------------------------------------------------------ play: a chart with a playhead, a dial, live readouts */
.play {
  display: grid;
  gap: 16px;
}

.box-title {
  margin: 0 0 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.gauge-box {
  margin: 0;
  padding: 12px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.mini-field {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.gauge-svg { display: block; width: 100%; max-width: 260px; margin: 0 auto; height: auto; }

.gauge-box figcaption {
  display: grid;
  justify-items: center;
  margin-top: -2px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.gauge-box figcaption strong {
  font-family: var(--font-display);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.play-main { min-width: 0; }

.chart-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0 0 2px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.key { display: inline-block; width: 16px; height: 0; border-top: 2.5px solid; margin: 0 4px 0 8px; }
.key:first-child { margin-left: 0; }

.chart-svg { display: block; max-width: 100%; height: auto; }
.ch-grid { stroke: var(--border); stroke-width: 1; }
.ch-tick, .ch-axis, .ch-unit { fill: var(--text-muted); font-family: var(--font-body); font-size: 11.5px; }
.ch-unit { font-weight: 600; }
.ch-label { fill: var(--text); font-family: var(--font-body); font-size: 12px; }
.ch-line { fill: none; stroke-width: 2; stroke-linejoin: round; }

.ch-playhead { stroke: var(--text-muted); stroke-width: 1; stroke-dasharray: 3 3; }
.ch-dot { stroke: var(--surface); stroke-width: 2; }

.play-empty { padding: 24px 0; }

.play-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 10px;
}

.play-button {
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  color: #0b0d10;
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  padding: 8px 18px;
  min-height: 42px;
  cursor: pointer;
}

.play-button:hover { background: var(--accent-strong); }
.play-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.readouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.readout {
  display: grid;
  gap: 1px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.readout-label { font-size: 0.75rem; color: var(--text-muted); }
.readout--live .readout-value { font-variant-numeric: tabular-nums; }
.readout-value { font-family: var(--font-display); font-size: 1.6rem; line-height: 1.1; }
.readout-sub { font-size: 0.75rem; color: var(--text-muted); }

.readout-note {
  grid-column: 1 / -1;
  margin: 2px 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ------------------------------------------------------------ charts' tooltip */
.viz-tip {
  position: absolute;
  z-index: 20;
  pointer-events: none;
  display: grid;
  gap: 1px;
  max-width: 260px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.viz-tip strong { color: var(--text); }

/* ------------------------------------------------------------ explainers, sources page */
.explainers { margin-top: 16px; }
.explainer-body p, .explainer-body ul { margin: 8px 0 0; }
.explainer-body ul { padding-left: 18px; }
.explainer-body li + li { margin-top: 6px; }
.disclaimer { margin-top: 16px; }

.source-quote {
  margin: 8px 0 0;
  padding: 6px 12px;
  border-left: 3px solid var(--border);
  color: var(--text-muted);
  font-style: italic;
}

.tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 999px;
  padding: 1px 8px;
  white-space: nowrap;
  border: 1px solid currentColor;
  vertical-align: 1px;
  font-style: normal;
}

.tag--method { color: var(--accent); }
.tag--maker { color: var(--maker); }
.tag--standard { color: var(--pass); }
.tag--engineering { color: #5eead4; }
.tag--calc { color: var(--warn); border-style: dashed; }

/* ------------------------------------------------------------ motion off when asked */
@media (prefers-reduced-motion: reduce) {
  .scene-svg *,
  .bal-seg,
  .bal-tick,
  .scene-field,
  .scene-tag,
  .ga-needle {
    animation: none !important;
    transition: none !important;
  }
}

@media print {
  .construction,
  .try,
  .play-bar,
  .viz-tip {
    display: none !important;
  }
}

/* ============================================================ Ropes & Recovery Gear */

.tone-pass { --tone: var(--pass); }
.tone-warn { --tone: var(--warn); }
.tone-fail { --tone: var(--fail); }

/* ------------------------------------------------------------ the scene: two vehicles and a strap */
.sc-hill { fill: #121a22; }
.sc-hill--near { fill: #0f161d; }
.sc-body { fill: #2c3a48; stroke: #8fa3b5; stroke-width: 2; stroke-linejoin: round; }
.sc-rec .sc-body { fill: #34404c; }
.sc-glass { fill: #12202c; stroke: #6f8597; stroke-width: 1.5; }
.sc-rack { fill: #6f8597; }
.sc-bar { fill: #3b4652; stroke: #8fa3b5; stroke-width: 1.5; }
.sc-tyre { fill: #121417; stroke: #2b2f34; stroke-width: 3; }
.sc-rim { fill: #4b5560; }
.sc-spoke { stroke: #1d2228; stroke-width: 3; }
.sc-hub { fill: #c8d1da; }
.sc-edge { stroke: #d6b07a; stroke-width: 2.5; }
.sc-strap { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.sc--strap .sc-strap { stroke: #e8e2d0; stroke-width: 6; }
.sc--kinetic .sc-strap { stroke: #e0a83a; stroke-width: 5; stroke-dasharray: 2 1.5; }
.sc--static .sc-strap { stroke: #7fb0de; stroke-width: 2.6; }
.sc-lanyard { fill: none; stroke: #ff8a3d; stroke-width: 3.2; stroke-linecap: round; }
.sc-shackle { fill: none; stroke: #c8d1da; stroke-width: 2.5; }
.sc-tag { fill: #1a1405; font-family: var(--font-display); font-weight: 700; font-size: 20px; }
.sc-gear { fill: #1a1405; font-family: var(--font-body); font-size: 14px; font-weight: 600; }
@media (max-width: 560px) {
  .sc-gear { display: none; }
  .sc-tag { font-size: 30px; }
}
.speed-table th[scope="row"] { white-space: nowrap; }
.sc-snap { fill: var(--fail); font-family: var(--font-display); font-weight: 700; font-size: 30px; letter-spacing: 0.1em; }

.scene-field--strap { min-width: 168px; max-width: 190px; }
.scene-field--strap .sf-input > span { white-space: nowrap; }
#stage-sources { padding: 0 16px 16px; }
.sf-input--small input { font-size: 1.05rem; width: 3.2em; flex: none; }

@media (max-width: 860px) {
  .scene > .scene-fields .scene-field--strap { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; }
  .scene > .scene-fields .scene-field--strap .sf-label { flex-basis: 100%; }
  .scene > .scene-fields .scene-field--strap .sf-input { flex: 1 1 8em; }
}

/* ------------------------------------------------------------ controls */
.controls { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); }

@media (max-width: 640px) {
  .controls { grid-template-columns: 1fr; }
}

.slider {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
}

.slider--pic { grid-template-columns: auto minmax(0, 1fr) auto; }

.slider input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  height: 30px;
}

.slider output {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  min-width: 4.6em;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.chip-line { display: inline-block; width: 22px; height: 0; border-top: 5px solid; border-radius: 3px; }
.chip-line--strap { border-color: #e8e2d0; }
.chip-line--kinetic { border-color: #e0a83a; border-top-style: dotted; }
.chip-line--static { border-color: #7fb0de; border-top-width: 2.5px; }

.chips--small .chip { font-size: 0.8rem; min-height: 32px; padding: 4px 10px; }

.fix-note { margin: 10px 0 0; font-weight: 500; }

/* balance: the peak force against each limit */
.bal-limit { background: #e6ebef; border-radius: 4px !important; }
.bal-limit.lim-shackle { background: var(--series-3); }
.bal-limit.lim-point { background: var(--series-neutral); }
.bal-limit.is-over { box-shadow: 0 0 0 2px var(--fail); }
.bal-val { display: flex; justify-content: flex-end; align-items: center; gap: 6px; }
.bal-ok .status-icon { width: 18px; height: 18px; font-size: 0.65rem; }
.bal-row { grid-template-columns: minmax(0, 13em) minmax(0, 1fr) 7.5em; }

@media (max-width: 560px) {
  .bal-row { grid-template-columns: minmax(0, 1fr) auto; }
}

/* ------------------------------------------------------------ play: dial + chart */
@media (min-width: 760px) {
  .play { grid-template-columns: 260px minmax(0, 1fr); align-items: start; }
}

.gauge-svg { display: block; width: 100%; max-width: 260px; margin: 0 auto; height: auto; }
.ga-track { fill: none; stroke: color-mix(in srgb, var(--series-2) 18%, var(--surface)); stroke-width: 14; stroke-linecap: round; }
.ga-fill { fill: none; stroke: var(--series-2); stroke-width: 14; stroke-linecap: round; }
.ga-ticks line { stroke: var(--text-muted); stroke-width: 1.5; }
.ga-ticks text { fill: var(--text-muted); font-family: var(--font-body); font-size: 10px; }
.ga-ticks .ga-unit { font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; }
.ga-needle { fill: var(--text); transform-box: view-box; transform-origin: 110px 112px; transform: rotate(-90deg); }
.ga-peak { stroke: var(--text); stroke-width: 2; transform-box: view-box; transform-origin: 110px 112px; }
.ga-mark { stroke-width: 3.5; stroke-linecap: round; }
.ga-mark.lim-mbs { stroke: #e6ebef; }
.ga-mark.lim-shackle { stroke: var(--series-3); }
.ga-mark.lim-point { stroke: var(--series-neutral); }

.gauge-legend {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.gauge-legend li { display: flex; align-items: center; gap: 6px; }
.gl-key { width: 14px; height: 3.5px; border-radius: 2px; flex: none; }
.gl-key.lim-mbs { background: #e6ebef; }
.gl-key.lim-shackle { background: var(--series-3); }
.gl-key.lim-point { background: var(--series-neutral); }

.play-slow { margin: 0; }

.ch-line--force { stroke: var(--series-2); stroke-width: 2.5; }
.ch-line--mbs { stroke: #e6ebef; stroke-dasharray: 7 5; stroke-width: 1.5; }
.ch-line--shackle { stroke: var(--series-3); stroke-dasharray: 7 5; stroke-width: 1.5; }
.ch-line--point { stroke: var(--series-neutral); stroke-dasharray: 3 4; stroke-width: 1.5; }
.ch-line--strap { stroke: var(--series-1); }
.ch-line--kinetic { stroke: var(--series-2); }
.ch-line--static { stroke: var(--series-4); }
.ch-dot.ch-line--force { fill: var(--series-2); }
.ch-dot.ch-line--strap { fill: var(--series-1); }
.ch-dot.ch-line--kinetic { fill: var(--series-2); }
.ch-dot.ch-line--static { fill: var(--series-4); }

.key--force { border-color: var(--series-2); }
.key--mbs { border-color: #e6ebef; border-top-style: dashed; }
.key--shackle { border-color: var(--series-3); border-top-style: dashed; }
.key--point { border-color: var(--series-neutral); border-top-style: dotted; }
.key--strap { border-color: var(--series-1); }
.key--kinetic { border-color: var(--series-2); }
.key--static { border-color: var(--series-4); }

.readout-value { font-size: 1.45rem; }

/* ------------------------------------------------------------ strap or rope for these vehicles */
.part-intro { margin: -4px 0 10px; }
.layers-title { margin: 18px 0 8px; font-weight: 600; }

.ranges { display: grid; gap: 10px; }

.rg-row {
  display: grid;
  grid-template-columns: minmax(0, 14em) minmax(0, 1fr) 8.5em;
  align-items: center;
  gap: 10px;
}

.rg-name { font-weight: 600; font-size: 0.9rem; }
.rg-name small { display: block; font-weight: 400; color: var(--text-muted); font-size: 0.75rem; }
.rg-track { position: relative; height: 22px; border-radius: 4px; background: color-mix(in srgb, var(--border) 60%, transparent); }
.rg-band { position: absolute; top: 0; bottom: 0; border-radius: 4px; transition: left 0.5s, width 0.5s; }
.rg-band--strap { background: color-mix(in srgb, var(--series-1) 75%, transparent); }
.rg-band--kinetic { background: color-mix(in srgb, var(--series-2) 75%, transparent); }
.rg-band--heavy { background: repeating-linear-gradient(45deg, color-mix(in srgb, var(--series-2) 40%, transparent) 0 4px, transparent 4px 8px); }
.rg-you { position: absolute; top: -5px; bottom: -5px; width: 3px; margin-left: -1.5px; background: #e6ebef; border-radius: 2px; transition: left 0.5s; }
.rg-val { font-family: var(--font-display); font-size: 1.05rem; text-align: right; font-variant-numeric: tabular-nums; }

@media (max-width: 560px) {
  .rg-row { grid-template-columns: minmax(0, 1fr) auto; }
  .rg-track { grid-column: 1 / -1; grid-row: 2; }
}

.speed-table { margin-top: 10px; }
.speed-table tr.is-mine th,
.speed-table tr.is-mine td { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.speed-table .key { margin: 0 6px 3px 0; vertical-align: middle; }

/* ------------------------------------------------------------ shackles */
.shackle-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 28px;
  margin-bottom: 12px;
}

.ctl--side { flex: 1 1 340px; max-width: 520px; }
.ctl--point .mini-field input { width: 5.5em; }
.shackle-svg { display: block; width: 64px; height: 64px; }
.sv-bow { fill: none; stroke: #c8d1da; stroke-width: 6; stroke-linecap: round; }
.sv-pin { fill: #8a96a3; }
.sv-inline { stroke: var(--text-muted); stroke-width: 1.2; stroke-dasharray: 3 3; }
.sv-line { stroke: var(--series-2); stroke-width: 3; }
.sv-head { fill: var(--series-2); }
.sv-arc { fill: none; stroke: var(--series-4); stroke-width: 2; }
.sv-pull { transform-box: view-box; transform-origin: 50px 50px; transition: transform 0.3s cubic-bezier(0.3, 0.7, 0.2, 1); }

.shackles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
}

.sk {
  --tone: var(--incomplete);
  width: 100%;
  display: grid;
  gap: 2px;
  text-align: left;
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 4px solid var(--tone);
  border-radius: 12px;
  padding: 8px 10px;
  cursor: pointer;
}

.sk:hover { border-color: var(--text-muted); border-left-color: var(--tone); }
.sk[aria-checked="true"] { box-shadow: inset 0 0 0 2px var(--accent); background: rgba(63, 182, 255, 0.08); }
.sk:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sk--pass { --tone: var(--pass); }
.sk--fail { --tone: var(--fail); }
.sk-kind { font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); }
.sk-name { font-family: var(--font-display); font-size: 1.25rem; line-height: 1.1; }
.sk-wll { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.9rem; }
.sk-wll .status-icon { width: 18px; height: 18px; font-size: 0.65rem; }
.sk-sub { color: var(--text-muted); font-size: 0.75rem; }

.rules-list { margin: 10px 0 0; padding-left: 18px; font-size: 0.88rem; }
.rules-list li + li { margin-top: 4px; }

/* ------------------------------------------------------------ safety straps: three jobs */
.jobs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 12px;
}

.job {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  min-width: 0;
}

.job-title {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  font-family: var(--font-display);
  font-size: 1.3rem;
}

.job-title small { font-family: var(--font-body); font-size: 0.8rem; font-weight: 400; color: var(--text-muted); }

.job-num {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #0b0d10;
  font-size: 0.85rem;
  align-self: center;
}

.job-pic { min-height: 120px; display: grid; place-items: center; }
.job-controls { display: grid; gap: 8px; }
.job-controls .mini-field input { width: 5.5em; }
.job-figs { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; }
.job-figs .figure { padding: 8px 10px; background: var(--surface); }
.job-figs .figure-value { font-size: 1.45rem; }
.figure--pass { border-left: 4px solid var(--pass); }
.figure--fail { border-left: 4px solid var(--fail); }
.job .rules-list { margin-top: 0; }
.job .hint { margin: 0; }
.job .rule-links { margin-top: auto; }

.warn-line { display: flex; gap: 8px; align-items: flex-start; margin: 0; color: var(--fail); font-weight: 600; font-size: 0.88rem; }
.warn-line .status-icon { width: 20px; height: 20px; font-size: 0.7rem; }

.so-svg { display: block; max-width: 100%; height: auto; }
.so-zone { fill: color-mix(in srgb, var(--fail) 7%, transparent); stroke: var(--fail); stroke-width: 1.5; stroke-dasharray: 6 4; }
.so-veh { fill: #2c3a48; stroke: #8fa3b5; stroke-width: 1.5; }
.so-strap { stroke: #e8e2d0; stroke-width: 3; }
.so-lanyard { fill: none; stroke: #ff8a3d; stroke-width: 2; stroke-linecap: round; }
.so-dim { stroke: var(--text-muted); stroke-width: 1.2; }
.so-text { fill: var(--text); font-family: var(--font-body); font-size: 12px; font-weight: 600; }
.so-text--muted { fill: var(--text-muted); font-weight: 400; }

.vv-svg { display: block; width: 100%; max-width: 300px; height: auto; }
.vv-tree { fill: #3d2f24; stroke: #5b4636; stroke-width: 3; }
.vv-strap { stroke: #e0a83a; stroke-width: 4; stroke-linecap: round; fill: none; }
.vv-strap--wrap { stroke-width: 5; }
.vv-strap.is-over { stroke: var(--fail); }
.vv-pull { stroke: #e6ebef; stroke-width: 2.4; }
.vv-head { fill: #e6ebef; }
.vv-veh { fill: #2c3a48; stroke: #8fa3b5; stroke-width: 1.5; }
.vv-point { fill: #c8d1da; }
.vv-shackle { fill: #0b0d10; stroke: #c8d1da; stroke-width: 2.5; }
.vv-arc { fill: none; stroke: var(--series-4); stroke-width: 2; }
.vv-arc.is-over { stroke: var(--fail); }
.vv-angle { fill: var(--series-4); font-family: var(--font-display); font-weight: 700; font-size: 17px; }
.vv-angle.is-over { fill: var(--fail); }
.vv-text { fill: var(--text-muted); font-family: var(--font-body); font-size: 11px; }

@media (prefers-reduced-motion: reduce) {
  .rg-band,
  .rg-you,
  .sv-pull {
    transition: none !important;
  }
}

/* ------------------------------------------------------------ danger: information only, judge it on the scene */
.danger {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--fail) 55%, var(--border));
  border-left: 6px solid var(--fail);
  background: color-mix(in srgb, var(--fail) 9%, var(--surface));
}

.danger p { margin: 6px 0 0; max-width: 80ch; }

.danger .danger-title {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--fail);
}

.danger-icon {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--fail);
  color: #0b0d10;
  font-size: 1.1rem;
}

.verdict-warn { color: var(--text); font-weight: 600; }

/* strap or rope strength: SECURETECH's factors of safety on one bar */
.rg-band--under { background: color-mix(in srgb, var(--fail) 35%, transparent); }
.rg-band--low { background: color-mix(in srgb, var(--warn) 55%, transparent); }
.rg-band--rec { background: color-mix(in srgb, var(--pass) 55%, transparent); }
.rg-sw--under { background: color-mix(in srgb, var(--fail) 35%, transparent); }
.rg-sw--low { background: color-mix(in srgb, var(--warn) 55%, transparent); }
.rg-sw--rec { background: color-mix(in srgb, var(--pass) 55%, transparent); }
.rg-key-you { display: inline-block; width: 3px; height: 14px; margin-right: 8px; background: #e6ebef; border-radius: 2px; }
.rg-legend { margin-top: 6px; }
.speed-hint { margin: 4px 0 0; }