/* Runway Calculator */

.calc-hero {
  padding: 72px 0 24px;
  max-width: 900px;
}
.calc-hero h1 {
  font-size: clamp(56px, 7vw, 96px);
  line-height: 1;
  letter-spacing: -0.035em;
  margin: 20px 0 24px;
}
.calc-hero h1 em { font-style: italic; color: var(--accent-ink); }
.calc-hero p.lede {
  font-size: 19px;
  color: var(--ink-soft);
  line-height: 1.55;
  max-width: 640px;
  margin: 0;
}

/* Main calc layout */
.calc-shell {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 0;
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  background: var(--bg-raised);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* Inputs panel */
.calc-inputs {
  padding: 40px;
  border-right: 1px solid var(--rule);
  background: var(--bg-raised);
}
.calc-inputs-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
}
.calc-inputs-head h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 400;
  margin: 6px 0 0;
  letter-spacing: -0.015em;
}
.calc-reset {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 6px 10px;
  border-radius: var(--r-sm);
  transition: color 140ms ease, background 140ms ease;
}
.calc-reset:hover { color: var(--ink); background: var(--bg-sunken); }

.calc-group {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule-soft);
}
.calc-group:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.calc-group-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 14px;
}

/* Fields */
.calc-field { margin-bottom: 14px; }
.calc-field:last-child { margin-bottom: 0; }
.calc-field-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.calc-field-label {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: -0.005em;
}
.calc-field-hint {
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 2px;
  line-height: 1.4;
}
.calc-input {
  position: relative;
  display: inline-flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: 0 12px;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
  min-width: 160px;
}
.calc-input:focus-within {
  border-color: var(--accent);
  background: var(--bg-raised);
  box-shadow: 0 0 0 3px var(--accent-wash);
}
.calc-input .prefix, .calc-input .suffix {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  user-select: none;
}
.calc-input .prefix { padding-right: 6px; }
.calc-input .suffix { padding-left: 6px; }
.calc-input input {
  border: none;
  background: transparent;
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  text-align: right;
  width: 100%;
  min-width: 0;
  outline: none;
  font-variant-numeric: tabular-nums;
}
.calc-input input::-webkit-outer-spin-button,
.calc-input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calc-input input[type=number] { -moz-appearance: textfield; }

/* Row list (labor, expenses) */
.calc-rows { display: flex; flex-direction: column; gap: 10px; }
.calc-row {
  display: grid;
  grid-template-columns: 1fr 130px 32px;
  gap: 10px;
  align-items: center;
}
.calc-row .calc-input { min-width: 0; width: 100%; }
.calc-row input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  background: var(--bg);
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--ink);
  outline: none;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}
.calc-row input[type="text"]:focus {
  border-color: var(--accent);
  background: var(--bg-raised);
  box-shadow: 0 0 0 3px var(--accent-wash);
}
.calc-row-remove {
  width: 32px; height: 32px;
  border-radius: var(--r-sm);
  display: grid; place-items: center;
  color: var(--ink-faint);
  transition: color 140ms ease, background 140ms ease;
}
.calc-row-remove:hover { color: var(--ink); background: var(--bg-sunken); }

.calc-add {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 8px 12px;
  border: 1px dashed var(--rule);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--ink-soft);
  font-family: var(--font-sans);
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}
.calc-add:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-wash-2); }

/* Growth slider */
.calc-slider-wrap {
  display: grid;
  grid-template-columns: 1fr 84px;
  gap: 16px;
  align-items: center;
}
.calc-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--rule);
  border-radius: 999px;
  outline: none;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-raised);
  box-shadow: 0 0 0 1px var(--accent-ink), var(--shadow-sm);
  cursor: pointer;
}
.calc-slider::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-raised);
  box-shadow: 0 0 0 1px var(--accent-ink), var(--shadow-sm);
  cursor: pointer;
}
.calc-slider-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Results panel */
.calc-results {
  padding: 40px;
  background: linear-gradient(180deg, var(--accent-wash-2) 0%, var(--bg) 70%);
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.calc-hero-result {
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
}
.calc-hero-result .eyebrow { margin-bottom: 8px; }
.calc-hero-result .big {
  font-family: var(--font-display);
  font-size: clamp(56px, 7vw, 92px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.calc-hero-result .big em { font-style: italic; color: var(--accent-ink); }
.calc-hero-result .big .unit {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.45em;
  color: var(--ink-muted);
  margin-left: 10px;
  letter-spacing: -0.01em;
}
.calc-hero-result .sub {
  font-size: 14px;
  color: var(--ink-muted);
  margin-top: 14px;
  line-height: 1.55;
}
.calc-hero-result .sub strong { color: var(--ink); font-weight: 500; }

.calc-hero-result.is-profitable .big em { color: var(--accent-ink); }
.calc-hero-result.is-critical .big em { color: #B5441C; }
.calc-hero-result.is-warn .big em { color: #A07215; }

/* Stat strip */
.calc-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  overflow: hidden;
}
.calc-stat {
  background: var(--bg-raised);
  padding: 18px 20px;
}
.calc-stat .label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.calc-stat .value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-top: 6px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.calc-stat .value.neg { color: #B5441C; }
.calc-stat .value.pos { color: var(--accent-ink); }
.calc-stat .delta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 2px;
}

/* Chart */
.calc-chart-wrap {
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 24px;
}
.calc-chart-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}
.calc-chart-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.calc-chart-legend {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.calc-chart-legend .sw {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: middle;
}
.calc-chart-svg { width: 100%; height: auto; display: block; }

/* Scenario tabs */
.calc-scenarios {
  display: inline-flex;
  padding: 4px;
  background: var(--bg-sunken);
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  gap: 2px;
}
.calc-scenario-btn {
  padding: 7px 14px;
  border-radius: var(--r-pill);
  font-size: 12.5px;
  color: var(--ink-muted);
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: color 140ms ease, background 140ms ease;
}
.calc-scenario-btn.active {
  background: var(--bg-raised);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.calc-scenario-btn:hover:not(.active) { color: var(--ink); }

/* Disclaimer */
.calc-disclaimer {
  margin-top: 56px;
  padding: 24px 28px;
  background: var(--bg-sunken);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}
.calc-disclaimer-icon {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent-wash);
  color: var(--accent-ink);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.calc-disclaimer-body {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.calc-disclaimer-body strong { color: var(--ink); font-weight: 500; }
.calc-disclaimer-body a {
  color: var(--accent-ink);
  border-bottom: 1px solid var(--accent-line);
  transition: border-color 140ms ease;
}
.calc-disclaimer-body a:hover { border-color: var(--accent-ink); }

/* Tips rail */
.calc-tips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--rule);
  margin-top: 96px;
}
.calc-tip {
  background: var(--bg-raised);
  padding: 32px;
}
.calc-tip .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-ink);
  letter-spacing: 0.12em;
}
.calc-tip h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  margin: 14px 0 8px;
  letter-spacing: -0.01em;
}
.calc-tip p {
  color: var(--ink-muted);
  font-size: 14.5px;
  line-height: 1.55;
  margin: 0;
}

/* Assumptions bar */
.calc-assumptions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.calc-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: var(--r-pill);
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}
.calc-chip .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}

@media (max-width: 960px) {
  .calc-shell { grid-template-columns: 1fr; }
  .calc-inputs { border-right: none; border-bottom: 1px solid var(--rule); padding: 28px; }
  .calc-results { padding: 28px; }
  .calc-stats { grid-template-columns: 1fr; }
  .calc-tips { grid-template-columns: 1fr; }
  .calc-row { grid-template-columns: 1fr; }
}