/* Website Calculation — mineral console. Not a 2012 “worth $1,000,000” widget. */
:root {
  --wc-bg: #dce6e1;
  --wc-surface: #f4f8f6;
  --wc-ink: #101c16;
  --wc-muted: #3a4f46;
  --wc-line: #b4c6bd;
  --wc-signal: #0a6b5f;
  --wc-signal-deep: #084f47;
  --wc-well: #101c16;
  --wc-well-figure: #e6fff4;
  --wc-well-muted: #9db8ae;
  --wc-warn: #7a2a2a;
  --wc-warn-bg: #f3ddd8;
  --wc-ok-line: #7eb8a8;
  --wc-focus: #0a6b5f;
  --wc-max: 68rem;
  --wc-sans: "Avenir Next", "Segoe UI Variable", "Segoe UI", "Helvetica Neue", sans-serif;
  --wc-mono: "Cascadia Mono", "Consolas", "Lucida Console", monospace;
}

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

html {
  color-scheme: light;
}

html:focus-within {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--wc-sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--wc-ink);
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(10, 107, 95, 0.14), transparent 50%),
    radial-gradient(1200px 480px at 8% -10%, rgba(10, 107, 95, 0.1), transparent 55%),
    var(--wc-bg);
}

a {
  color: var(--wc-signal-deep);
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--wc-signal);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--wc-focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 20;
  padding: 0.4rem 0.7rem;
  background: var(--wc-well);
  color: var(--wc-well-figure);
  text-decoration: none;
}

.skip:focus {
  top: 0.75rem;
}

.mast {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.4rem;
  max-width: var(--wc-max);
  margin: 0 auto;
  padding: 1.15rem 1.15rem 0.85rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--wc-ink);
}

.mark-logo {
  display: block;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 4px;
  box-shadow: 0 0 0 1px var(--wc-line);
}

.mark-name {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.95rem;
  font-size: 0.95rem;
}

.nav a {
  text-decoration: none;
  color: var(--wc-muted);
}

.nav a:hover {
  color: var(--wc-ink);
  text-decoration: underline;
}

.nav a[aria-current="page"] {
  color: var(--wc-ink);
  background: #fff;
  padding: 0.2rem 0.5rem;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px var(--wc-line);
}

.shell {
  max-width: var(--wc-max);
  margin: 0 auto;
  padding: 0 1.15rem 3.5rem;
}

.lede-block {
  max-width: 42rem;
  padding: 0.85rem 0 1.05rem;
}

.kicker {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--wc-signal-deep);
}

h1 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.lede {
  margin: 0;
  color: var(--wc-muted);
}

.formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0.9rem 0 0;
  font-family: var(--wc-mono);
  font-size: 0.92rem;
  color: var(--wc-signal-deep);
}

.formula span {
  padding: 0.2rem 0.45rem;
  background: #fff;
  border: 1px solid var(--wc-line);
}

.formula .op {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--wc-muted);
}

.formula sup {
  font-size: 0.7em;
}

.jobs {
  margin: 2rem 0 0;
}

.jobs-kicker {
  margin: 0 0 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--wc-signal-deep);
}

.jobs ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 960px) {
  .jobs ul {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.jobs a {
  display: block;
  height: 100%;
  padding: 0.75rem 0.8rem;
  background: var(--wc-surface);
  border: 1px solid var(--wc-line);
  text-decoration: none;
  color: var(--wc-ink);
}

.jobs a:hover {
  border-color: var(--wc-signal);
  color: var(--wc-ink);
}

.jobs a[aria-current="page"] {
  border-color: var(--wc-signal);
  box-shadow: inset 3px 0 0 var(--wc-signal);
}

.jobs strong {
  display: block;
  margin-bottom: 0.2rem;
}

.jobs span {
  display: block;
  font-size: 0.86rem;
  color: var(--wc-muted);
  font-weight: 400;
}

.jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 0.85rem;
}

.jumps button {
  appearance: none;
  border: 1px solid var(--wc-line);
  background: #fff;
  color: var(--wc-ink);
  font: inherit;
  font-size: 0.86rem;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
}

.jumps button:hover {
  border-color: var(--wc-signal);
}

.extra-block {
  margin: 0 0 1rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--wc-line);
}

.extra-block summary {
  cursor: pointer;
  font-weight: 650;
}

.extra-block[open] summary {
  margin-bottom: 0.7rem;
}

.what-if,
.hold-box {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px solid #2a3d35;
}

.what-if p {
  margin: 0 0 0.55rem;
  color: var(--wc-well-muted);
  font-size: 0.86rem;
}

.hold-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.hold-actions button {
  margin-top: 0;
}

.hold-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  margin: 0.85rem 0 0;
}

@media (min-width: 560px) {
  .hold-pair {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.hold-pair dt {
  margin: 0;
  color: var(--wc-well-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hold-pair dd {
  margin: 0.2rem 0 0;
  font-family: var(--wc-mono);
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
}

#wc-hold-diff {
  color: #e6fff4;
}

.well-start {
  margin-top: 0.9rem;
}

.well-start p {
  margin: 0 0 0.65rem;
  color: var(--wc-well-muted);
}

.chip-on-dark {
  background: #1b2d26;
  color: var(--wc-well-figure);
  border-color: #3a5349;
}

.chip-on-dark:hover {
  border-color: var(--wc-well-figure);
}

.chip-primary {
  background: var(--wc-signal);
  color: #fff;
  border-color: var(--wc-signal-deep);
}

.chip-primary:hover {
  background: var(--wc-signal-deep);
}

.console {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  background: var(--wc-surface);
  border: 1px solid var(--wc-line);
  box-shadow: 0 18px 40px rgba(16, 28, 22, 0.06);
}

.well {
  order: -1;
}

@media (min-width: 880px) {
  .console {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .well {
    order: 0;
    position: sticky;
    top: 0.75rem;
    align-self: start;
  }
}

.inputs,
.well {
  padding: 1.25rem 1.2rem 1.4rem;
}

.inputs h2,
.well h2,
.prose h2,
.faq h2,
.tool-index h2 {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.field {
  margin: 0 0 0.95rem;
}

.field label {
  display: block;
  margin-bottom: 0.28rem;
  font-size: 0.92rem;
  font-weight: 650;
}

.hint {
  margin: 0.28rem 0 0;
  font-size: 0.86rem;
  color: var(--wc-muted);
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  max-width: 22rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--wc-line);
  border-radius: 2px;
  background: #fff;
  color: var(--wc-ink);
  font: inherit;
}

input[type="number"] {
  font-variant-numeric: tabular-nums;
  font-family: var(--wc-mono);
}

.mode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0 0 1rem;
}

.mode-row label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.well {
  background:
    radial-gradient(80% 70% at 100% 0%, rgba(10, 107, 95, 0.35), transparent 55%),
    var(--wc-well);
  color: var(--wc-well-figure);
}

.well[data-state="result"] {
  box-shadow: inset 0 0 0 1px #2a5348, 0 22px 48px rgba(16, 28, 22, 0.18);
}

.sample-flag {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.22rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #c8f5e4;
  border: 1px solid #3a5349;
}

.control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.nudge {
  display: flex;
  gap: 0.3rem;
}

.nudge button,
.presets button {
  appearance: none;
  border: 1px solid var(--wc-line);
  background: #fff;
  color: var(--wc-ink);
  font: inherit;
  font-size: 0.82rem;
  padding: 0.32rem 0.5rem;
  cursor: pointer;
  border-radius: 2px;
}

.nudge button:hover,
.presets button:hover {
  border-color: var(--wc-signal);
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0.45rem 0 0;
}

.well h2 {
  color: var(--wc-well-muted);
  font-weight: 600;
}

.figure {
  margin: 0 0 0.35rem;
  font-family: var(--wc-mono);
  font-size: clamp(2rem, 5vw, 3.1rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
}

.figure-sub {
  margin: 0 0 0.9rem;
  color: var(--wc-well-muted);
  font-size: 1rem;
}

.why {
  margin: 0;
  color: #d5ece4;
}

.well[data-state="empty"] .figure,
.well[data-state="empty"] .figure-sub {
  color: var(--wc-well-muted);
}

.well[data-state="warn"] {
  box-shadow: inset 0 0 0 3px #c9897a;
}

.stack {
  display: grid;
  gap: 0.85rem;
  margin: 0;
}

.stack div {
  padding-top: 0.7rem;
  border-top: 1px solid #2a3d35;
}

.stack dt {
  margin: 0;
  color: var(--wc-well-muted);
  font-size: 0.86rem;
}

.stack dd {
  margin: 0.15rem 0 0;
  font-family: var(--wc-mono);
  font-size: 1.25rem;
  font-variant-numeric: tabular-nums;
}

.honesty {
  margin: 1.15rem 0 0;
  padding: 0.95rem 1.1rem;
  background: #e7f0ec;
  border-left: 4px solid var(--wc-signal);
}

.honesty p,
.note p {
  margin: 0 0 0.55rem;
}

.honesty p:last-child,
.note p:last-child {
  margin-bottom: 0;
}

.note {
  margin: 1.15rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--wc-warn-bg);
  color: var(--wc-warn);
}

.prose,
.faq,
.tool-index {
  max-width: 44rem;
  margin: 2.2rem 0 0;
}

.prose p,
.faq p,
.tool-index p {
  margin: 0 0 0.85rem;
}

.faq details {
  margin: 0 0 0.55rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--wc-line);
}

.faq summary {
  cursor: pointer;
  font-weight: 650;
}

.faq details p {
  margin: 0.55rem 0 0;
  color: var(--wc-muted);
}

.tool-index ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tool-index li {
  margin: 0 0 0.85rem;
}

.tool-index a {
  font-weight: 700;
  text-decoration: none;
}

.tool-index a:hover {
  text-decoration: underline;
}

.table-wrap {
  overflow-x: auto;
  margin: 0.9rem 0 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid #2a3d35;
  text-align: left;
}

th {
  color: var(--wc-well-muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.foot {
  border-top: 1px solid var(--wc-line);
  background: #d3ddd8;
}

.foot-inner {
  max-width: var(--wc-max);
  margin: 0 auto;
  padding: 1.3rem 1.15rem 2rem;
  color: var(--wc-muted);
  font-size: 0.92rem;
}

.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-bottom: 0.85rem;
}

.foot a {
  color: var(--wc-ink);
  text-decoration: none;
}

.foot a:hover {
  text-decoration: underline;
}

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

.crumbs {
  max-width: var(--wc-max);
  margin: 0 auto;
  padding: 0 1.15rem;
  font-size: 0.86rem;
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.45rem;
  margin: 0;
  padding: 0.35rem 0 0;
  list-style: none;
  color: var(--wc-muted);
}

.crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 0.45rem;
  color: var(--wc-line);
}

.crumbs a {
  color: var(--wc-muted);
  text-decoration: none;
}

.crumbs a:hover {
  color: var(--wc-ink);
  text-decoration: underline;
}

.examples {
  margin: 1rem 0 0.35rem;
}

.examples-lead {
  margin: 0 0 0.5rem;
  font-size: 0.92rem;
  color: var(--wc-ink);
}

.examples p,
.action-row + .hint {
  margin: 0 0 0.45rem;
  font-size: 0.86rem;
  color: var(--wc-muted);
}

.example-note {
  margin: 0.55rem 0 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip,
.action-row button,
.well button {
  appearance: none;
  border: 1px solid var(--wc-line);
  background: #fff;
  color: var(--wc-ink);
  font: inherit;
  font-size: 0.88rem;
  padding: 0.4rem 0.65rem;
  cursor: pointer;
  border-radius: 2px;
}

.chip:hover,
.action-row button:hover,
.well button:hover {
  border-color: var(--wc-signal);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.85rem 0 0;
}

.action-row button:disabled,
.well button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.next-wrap {
  margin: 0.85rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--wc-surface);
  border: 1px solid var(--wc-line);
}

.next-wrap[hidden],
.next-wrap:has(a[hidden]) {
  display: none;
}

#wc-next {
  font-weight: 700;
}

.compare {
  width: 100%;
  max-width: 44rem;
  margin: 2.2rem 0 0;
  border-collapse: collapse;
}

.compare caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.compare th,
.compare td {
  border-bottom: 1px solid var(--wc-line);
  color: var(--wc-ink);
  vertical-align: top;
  font-size: 0.95rem;
}

.compare th {
  color: var(--wc-ink);
}

.need {
  max-width: 44rem;
  margin: 2.2rem 0 0;
}

.need ol {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.need li {
  margin: 0 0 0.45rem;
}

.well button {
  margin-top: 0.75rem;
  background: #1b2d26;
  color: var(--wc-well-figure);
  border-color: #3a5349;
}

@media print {
  .mast,
  .nav,
  .examples,
  .action-row,
  .skip,
  .foot nav,
  .chip {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .well {
    box-shadow: none;
    border: 1px solid #000;
  }
}