/* Pyxis Tools — shared chrome for the aviation tool suite.
   Built on the Pyxis Aviate design system tokens. Mobile-first. */

@import url('../colors_and_type.css');

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--pyxis-bg);
  color: var(--pyxis-text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100%;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }
svg { display: block; }
input, select, button { font-family: inherit; }

/* ============ Top bar ============ */
.tool-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 54px;
  padding: 0 16px;
  background: rgba(12, 13, 15, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pyxis-border);
}
.tb-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--pyxis-text-secondary);
  padding: 7px 10px 7px 8px;
  border-radius: 8px;
  border: 1px solid var(--pyxis-border);
  transition: all var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.tb-back:hover { color: var(--pyxis-text-primary); background: var(--pyxis-surface-hover); }
.tb-back .arr { font-size: 14px; }

.tb-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.tb-brand .star { color: var(--pyxis-amber); font-size: 15px; }
.tb-brand .label { color: var(--pyxis-text-primary); }
.tb-brand .label span { color: var(--pyxis-amber); }

.tb-tool {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pyxis-text-tertiary);
}
.tb-tool .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--pyxis-green);
  box-shadow: 0 0 8px rgba(76,175,120,0.6);
}
@media (max-width: 560px) {
  .tb-brand .label { display: none; }
  .tb-tool { font-size: 10px; }
}

/* ============ Page shell ============ */
.tool-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 16px 80px;
}
.tool-head {
  margin-bottom: 24px;
}
.tool-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pyxis-amber);
  margin-bottom: 12px;
}
.tool-eyebrow::before {
  content: '';
  width: 22px; height: 1px; background: var(--pyxis-amber); opacity: 0.6;
}
.tool-head h1 {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 10px;
}
.tool-head h1 b { font-weight: 600; color: var(--pyxis-amber); }
.tool-head p {
  font-size: 15px;
  color: var(--pyxis-text-secondary);
  max-width: 620px;
  line-height: 1.55;
}
@media (max-width: 560px) {
  .tool-head h1 { font-size: 27px; }
}

/* ============ Cards / panels ============ */
.panel {
  background: var(--pyxis-surface);
  border: 1px solid var(--pyxis-border);
  border-radius: 14px;
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--pyxis-border);
  background: var(--pyxis-surface-raised);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pyxis-text-secondary);
  font-weight: 500;
}
.panel-head .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--pyxis-amber); }
.panel-head .meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--pyxis-text-tertiary);
  text-transform: none;
}
.panel-body { padding: 18px; }

/* ============ Form fields ============ */
.field-grid {
  display: grid;
  gap: 14px;
}
.field-grid.two { grid-template-columns: 1fr 1fr; }
.field-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 540px) {
  .field-grid.two, .field-grid.three { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 7px; }
.field label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pyxis-text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.field label .unit {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--pyxis-amber);
  text-transform: none;
  font-weight: 400;
}

.input, select.input {
  background: var(--pyxis-bg);
  border: 1px solid var(--pyxis-border-strong);
  border-radius: 9px;
  padding: 12px 14px;
  font-family: var(--font-instrument);
  font-size: 18px;
  color: var(--pyxis-text-primary);
  letter-spacing: 0.01em;
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
}
.input::placeholder { color: var(--pyxis-text-tertiary); }
.input:focus, select.input:focus {
  outline: none;
  border-color: var(--pyxis-amber);
  box-shadow: 0 0 0 3px var(--pyxis-amber-glow);
}
select.input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a8d91' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}
.input.mono { font-family: var(--font-mono); font-size: 16px; text-transform: uppercase; }

/* Segmented control */
.seg {
  display: inline-flex;
  background: var(--pyxis-bg);
  border: 1px solid var(--pyxis-border-strong);
  border-radius: 9px;
  padding: 3px;
  gap: 3px;
}
.seg button {
  border: none;
  background: transparent;
  color: var(--pyxis-text-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 6px;
  transition: all var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.seg button:hover { color: var(--pyxis-text-primary); }
.seg button.active {
  background: var(--pyxis-amber);
  color: var(--pyxis-amber-on);
  font-weight: 600;
}

/* Primary action button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  transition: all var(--dur-base) var(--ease-out);
}
.btn-primary { background: var(--pyxis-amber); color: var(--pyxis-amber-on); }
.btn-primary:hover { background: var(--pyxis-amber-hover); }
.btn-ghost { background: transparent; border: 1px solid var(--pyxis-border-strong); color: var(--pyxis-text-primary); }
.btn-ghost:hover { background: var(--pyxis-surface-hover); }
.btn.block { width: 100%; }

/* ============ Readouts ============ */
.readout-grid {
  display: grid;
  gap: 1px;
  background: var(--pyxis-border);
  border: 1px solid var(--pyxis-border);
  border-radius: 12px;
  overflow: hidden;
}
.readout-grid.two { grid-template-columns: 1fr 1fr; }
.readout-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 480px) {
  .readout-grid.three { grid-template-columns: 1fr 1fr; }
}
.readout {
  background: var(--pyxis-surface);
  padding: 16px 16px 18px;
}
.readout .rl {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pyxis-text-tertiary);
}
.readout .rv {
  font-family: var(--font-instrument);
  font-size: 30px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--pyxis-text-primary);
  line-height: 1.05;
  margin-top: 8px;
  font-variant-numeric: tabular-nums;
}
.readout .rv .u {
  font-size: 13px;
  color: var(--pyxis-text-secondary);
  margin-left: 4px;
  font-family: var(--font-mono);
}
.readout.accent .rv { color: var(--pyxis-amber); }
.readout.green .rv { color: var(--pyxis-green); }
.readout.red .rv { color: var(--pyxis-red); }
.readout.blue .rv { color: var(--pyxis-blue); }
.readout .rd {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--pyxis-text-tertiary);
  margin-top: 5px;
  letter-spacing: 0.02em;
}

/* Helper note / formula footnote */
.note {
  font-size: 12px;
  color: var(--pyxis-text-tertiary);
  line-height: 1.5;
}
.note code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--pyxis-amber);
  background: var(--pyxis-surface-raised);
  padding: 1px 5px;
  border-radius: 4px;
}

.stack { display: flex; flex-direction: column; gap: 18px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ============ Tools hub landing ============ */
.hub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
@media (max-width: 820px) { .hub-grid { grid-template-columns: 1fr; } }

.hub-card {
  display: flex;
  flex-direction: column;
  background: var(--pyxis-surface);
  border: 1px solid var(--pyxis-border);
  border-top: 2px solid var(--pyxis-amber);
  border-radius: 12px;
  padding: 24px 22px 22px;
  transition: all var(--dur-base) var(--ease-out);
  min-height: 230px;
}
.hub-card:hover {
  background: var(--pyxis-surface-hover);
  border-color: var(--pyxis-border-strong);
  border-top-color: var(--pyxis-amber);
  transform: translateY(-2px);
}
.hub-card.green { border-top-color: var(--pyxis-green); }
.hub-card.blue { border-top-color: var(--pyxis-blue); }
.hub-card.teal { border-top-color: var(--pyxis-teal); }

.hub-card .hc-icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 11px;
  background: var(--pyxis-amber-glow);
  border: 1px solid rgba(232,168,50,0.15);
  margin-bottom: 18px;
  color: var(--pyxis-amber);
}
.hub-card.green .hc-icon { background: var(--pyxis-green-dim); border-color: rgba(76,175,120,0.2); color: var(--pyxis-green); }
.hub-card.blue .hc-icon { background: var(--pyxis-blue-dim); border-color: rgba(74,158,255,0.2); color: var(--pyxis-blue); }
.hub-card.teal .hc-icon { background: var(--pyxis-teal-dim); border-color: rgba(58,184,160,0.2); color: var(--pyxis-teal); }

.hub-card .hc-code {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pyxis-text-tertiary);
  margin-bottom: 8px;
}
.hub-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.hub-card p {
  font-size: 13.5px;
  color: var(--pyxis-text-secondary);
  line-height: 1.55;
  flex: 1;
}
.hub-card .hc-go {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--pyxis-amber);
}
.hub-card.green .hc-go { color: var(--pyxis-green); }
.hub-card.blue .hc-go { color: var(--pyxis-blue); }
.hub-card.teal .hc-go { color: var(--pyxis-teal); }
.hub-card:hover .hc-go .arr { transform: translateX(3px); }
.hub-card .hc-go .arr { transition: transform var(--dur-base) var(--ease-out); }
.hub-card .hc-tags { display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap; }
.hub-card .hc-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pyxis-text-tertiary);
  padding: 2px 8px;
  border: 1px solid var(--pyxis-border);
  border-radius: 4px;
}

/* ============ On-page content / SEO prose ============ */
.tool-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 16px 88px;
}
.content-section { margin-top: 44px; }
.content-section:first-child { margin-top: 0; }
.content-section h2 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--pyxis-text-primary);
  margin-bottom: 14px;
}
.content-section h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--pyxis-text-primary);
  margin: 22px 0 8px;
}
.content-section p {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--pyxis-text-secondary);
  margin-bottom: 14px;
  text-wrap: pretty;
}
.content-section p strong, .content-section li strong { color: var(--pyxis-text-primary); font-weight: 600; }
.content-section a { color: var(--pyxis-amber); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.content-section ul.bullets {
  display: flex; flex-direction: column; gap: 10px;
  margin: 0 0 16px;
}
.content-section ul.bullets li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 15px; line-height: 1.6; color: var(--pyxis-text-secondary);
}
.content-section ul.bullets li::before {
  content: '✦'; color: var(--pyxis-amber); font-size: 11px; flex-shrink: 0; margin-top: 5px;
}
.content-section code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--pyxis-amber);
  background: var(--pyxis-surface-raised);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Worked example callout */
.worked {
  background: var(--pyxis-surface);
  border: 1px solid var(--pyxis-border);
  border-left: 3px solid var(--pyxis-amber);
  border-radius: 10px;
  padding: 20px 22px;
  margin: 8px 0 16px;
}
.worked .we-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pyxis-amber);
  margin-bottom: 12px;
}
.worked p { font-size: 14.5px; margin-bottom: 10px; }
.worked .we-line {
  display: flex; justify-content: space-between; gap: 16px;
  font-family: var(--font-mono); font-size: 13px;
  padding: 7px 0; border-bottom: 1px solid var(--pyxis-border);
  color: var(--pyxis-text-secondary);
}
.worked .we-line:last-child { border-bottom: none; }
.worked .we-line b { color: var(--pyxis-text-primary); font-weight: 600; }
.worked .we-line .amber { color: var(--pyxis-amber); }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 10px; }
.faq details {
  background: var(--pyxis-surface);
  border: 1px solid var(--pyxis-border);
  border-radius: 10px;
  overflow: hidden;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 18px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--pyxis-text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--pyxis-amber);
  line-height: 1;
  transition: transform var(--dur-base) var(--ease-out);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { background: var(--pyxis-surface-hover); }
.faq .faq-a {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--pyxis-text-secondary);
}

/* Related tools links */
.related-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 540px) { .related-grid { grid-template-columns: 1fr; } }
.related-card {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--pyxis-surface);
  border: 1px solid var(--pyxis-border);
  border-radius: 10px;
  padding: 16px 18px;
  transition: all var(--dur-base) var(--ease-out);
}
.related-card:hover { background: var(--pyxis-surface-hover); border-color: var(--pyxis-border-strong); }
.related-card .rc-t { font-size: 15px; font-weight: 600; color: var(--pyxis-text-primary); }
.related-card .rc-d { font-size: 13px; color: var(--pyxis-text-secondary); line-height: 1.5; }
.related-card .rc-go { font-family: var(--font-mono); font-size: 11px; color: var(--pyxis-amber); margin-top: 4px; letter-spacing: 0.04em; }