.tool-site {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: "Space Grotesk", sans-serif;
  font-size: 18px;
  line-height: 1.5;
}

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

.tool-site .container { width: min(var(--container), calc(100% - 72px)); margin: 0 auto; }
.tool-site .site-header { position: fixed; right: 0; left: 0; z-index: 300; }
.tool-site .nav { min-height: var(--site-header-height); display: flex; align-items: center; justify-content: space-between; }
.tool-site .brand { color: var(--ink); text-decoration: none; }
.tool-site .nav-actions { display: flex; align-items: center; margin-left: auto; }
.tool-site .button { display: inline-flex; align-items: center; justify-content: center; }
.tool-site .mobile-label { display: none; }

.tool-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 8vw, 118px) 0 clamp(58px, 7vw, 96px);
  border-bottom: 3px solid var(--ink);
  background:
    radial-gradient(circle at 88% 8%, transparent 0 92px, rgba(21, 18, 14, 0.13) 93px 95px, transparent 96px 126px, rgba(21, 18, 14, 0.08) 127px 129px, transparent 130px),
    repeating-linear-gradient(135deg, transparent 0 25px, rgba(21, 18, 14, 0.045) 25px 27px),
    var(--paper);
}

.tool-hero::after {
  content: "";
  position: absolute;
  top: -35%;
  right: -5%;
  width: 36vw;
  min-width: 330px;
  aspect-ratio: 1;
  border: 2px solid rgba(21, 18, 14, 0.16);
  transform: rotate(24deg);
  pointer-events: none;
}

.tool-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr); align-items: end; gap: 64px; }
.tool-site .eyebrow,
.section-kicker { margin: 0 0 18px; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.14em; line-height: 1.25; text-transform: uppercase; }
.tool-site h1 { max-width: 920px; margin: 0; font-size: clamp(64px, 8.5vw, 132px); line-height: 0.84; text-shadow: none; overflow-wrap: normal; }
.tool-intro { max-width: 500px; padding: 24px 0 6px; font-size: clamp(1rem, 1.6vw, 1.25rem); font-weight: 600; }
.tool-intro p { margin: 0 0 18px; }
.tool-intro .privacy-note { padding: 14px 16px; border: 1px solid var(--ink); background: var(--acid-beige); font-size: 0.78rem; font-weight: 500; }

.calculator-section { position: relative; padding: clamp(64px, 8vw, 112px) 0; }
.calculator-section::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0.45; background-image: linear-gradient(rgba(21, 18, 14, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(21, 18, 14, 0.05) 1px, transparent 1px); background-size: 36px 36px; }
.calculator-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 28px; }
.tool-site h2 { margin: 0; max-width: 900px; font-size: clamp(48px, 6vw, 88px); line-height: 0.88; }
.utility-button { min-height: 48px; padding: 12px 18px; color: var(--ink); background: var(--copper); border: 2px solid var(--ink); box-shadow: 4px 4px 0 var(--ink); font: 700 0.66rem/1.2 "Space Grotesk", sans-serif; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; }
.utility-button:hover,
.utility-button:focus-visible { color: var(--paper); background: var(--ink); outline: none; }

.input-panel { padding: clamp(24px, 4vw, 48px); background: rgba(252, 250, 246, 0.94); border: 2px solid var(--ink); box-shadow: 10px 10px 0 var(--copper); }
.global-controls,
.driver-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 48px; }
.global-controls { padding-bottom: 30px; border-bottom: 2px solid var(--ink); }
.guardrail-mode { padding-bottom: 26px; }
.guardrail-mode .segmented-control { max-width: 520px; }
.gross-margin-control { padding: 30px 0; border-bottom: 2px solid var(--ink); }
.gross-margin-control .range-row { max-width: calc(50% - 24px); }
.motion-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; border: 0; }
.motion-column { min-width: 0; margin: 0; padding: 34px 40px 36px 0; border: 0; }
.motion-column + .motion-column { padding-right: 0; padding-left: 40px; border-left: 2px solid var(--ink); }
.motion-column legend { padding: 8px 13px; color: var(--paper); background: var(--ink); font-family: "Archivo Black", sans-serif; font-size: 0.92rem; letter-spacing: 0.02em; line-height: 1; text-transform: uppercase; }
.motion-note { margin: 12px 0 22px; color: var(--muted-ink); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; }
.control { min-width: 0; }
.motion-column .control + .control { margin-top: 24px; }
.control label,
.control-label { display: block; margin: 0 0 9px; font-size: 0.69rem; font-weight: 700; letter-spacing: 0.04em; line-height: 1.3; text-transform: uppercase; }
.range-row { display: flex; align-items: center; gap: 16px; }
.range-row input[type="range"] { min-width: 0; flex: 1; accent-color: var(--ink); cursor: pointer; }
.range-row output { min-width: 96px; font-family: "Archivo Black", sans-serif; font-size: 0.9rem; text-align: right; }
.input-group { min-height: 48px; display: flex; align-items: center; border: 2px solid var(--ink); background: var(--paper); }
.input-group:focus-within { box-shadow: 4px 4px 0 var(--copper); }
.input-group span { padding: 0 12px; font-weight: 700; }
.input-group input { min-width: 0; width: 100%; padding: 11px 12px; color: var(--ink); background: transparent; border: 0; outline: 0; font: 700 1rem/1.2 "Space Grotesk", sans-serif; }
.driver-controls { padding-top: 30px; border-top: 2px solid var(--ink); }
.segmented-control { display: flex; border: 2px solid var(--ink); }
.segmented-control button { min-height: 46px; flex: 1; padding: 10px 14px; color: var(--ink); background: transparent; border: 0; font: 700 0.67rem/1.1 "Space Grotesk", sans-serif; letter-spacing: 0.05em; text-transform: uppercase; cursor: pointer; }
.segmented-control button + button { border-left: 2px solid var(--ink); }
.segmented-control button[aria-pressed="true"] { color: var(--paper); background: var(--ink); }
.control.is-disabled { opacity: 0.38; }

.results-heading { margin: clamp(74px, 9vw, 128px) 0 28px; }
.result-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.result-card { min-width: 0; padding: clamp(28px, 4vw, 52px); background: var(--paper); border: 2px solid var(--ink); box-shadow: 8px 8px 0 var(--copper); }
.result-card-inverse { color: var(--paper); background: var(--ink); box-shadow: 8px 8px 0 #d8d0c4; }
.result-tag { display: inline-block; margin: 0 0 22px; padding: 6px 10px; color: var(--paper); background: var(--ink); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.result-card-inverse .result-tag { color: var(--ink); background: var(--paper); }
.result-card h3 { margin: 0 0 12px; font-size: clamp(1.25rem, 2vw, 1.85rem); }
.result-card-inverse h3 { color: var(--paper); }
.hero-result { display: block; margin-bottom: 26px; font-family: "Archivo Black", sans-serif; font-size: clamp(3.4rem, 7vw, 6.8rem); letter-spacing: -0.08em; line-height: 0.9; overflow-wrap: anywhere; }
.secondary-result { margin: -10px 0 24px; padding: 12px 0; border-top: 1px solid rgba(252, 250, 246, 0.35); border-bottom: 1px solid rgba(252, 250, 246, 0.35); font-size: 0.75rem; }
.secondary-result strong { float: right; font-size: 1rem; }
.result-card dl { margin: 0; border-top: 2px solid currentColor; }
.result-card dl div { display: flex; justify-content: space-between; gap: 18px; padding: 11px 0; border-bottom: 1px solid rgba(21, 18, 14, 0.22); font-size: 0.78rem; }
.result-card-inverse dl div { border-bottom-color: rgba(252, 250, 246, 0.22); }
.result-card dt { color: inherit; opacity: 0.7; }
.result-card dd { margin: 0; font-weight: 700; text-align: right; }

.blended-panel { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr); align-items: end; gap: 60px; margin-top: 32px; padding: clamp(32px, 5vw, 64px); color: var(--ink); background: var(--acid-beige); border: 2px solid var(--ink); }
.blended-panel h2 { max-width: 650px; font-size: clamp(38px, 5vw, 72px); }
.blend-copy > strong { display: block; margin: 20px 0 12px; font-family: "Archivo Black", sans-serif; font-size: clamp(4rem, 9vw, 8.5rem); letter-spacing: -0.09em; line-height: 0.84; }
.blend-copy > p:last-child { max-width: 700px; margin: 0; font-size: 0.82rem; }
.range-labels { display: flex; justify-content: space-between; margin-top: 8px; font-size: 0.56rem; font-weight: 700; text-transform: uppercase; }
.model-readout { margin: 26px 0 0; padding: 22px 24px; color: var(--paper); background: var(--ink); border-left: 12px solid var(--copper); font-size: 0.86rem; }
.model-readout strong { color: var(--paper); }
.methodology { display: grid; grid-template-columns: minmax(250px, 0.7fr) minmax(0, 1fr) minmax(0, 1fr); gap: 38px; margin-top: 78px; padding-top: 40px; border-top: 3px solid var(--ink); }
.methodology h2 { font-size: clamp(38px, 4.4vw, 64px); }
.methodology p { margin: 0; color: var(--muted-ink); font-size: 0.82rem; }

.seo-guide { margin-top: clamp(76px, 9vw, 132px); padding-top: 44px; border-top: 3px solid var(--ink); }
.seo-guide-header { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr); align-items: end; gap: 44px; }
.seo-guide-header .section-kicker { grid-column: 1 / -1; margin-bottom: -18px; }
.seo-guide-header h2 { max-width: 840px; }
.seo-guide-header > p:last-child { margin: 0 0 4px; color: var(--muted-ink); font-size: 0.9rem; }
.seo-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 54px; border-top: 2px solid var(--ink); border-left: 2px solid var(--ink); }
.seo-guide-grid article { min-width: 0; padding: clamp(24px, 3.5vw, 42px); background: rgba(252, 250, 246, 0.76); border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.seo-guide-grid h3,
.formula-panel h3 { margin: 0 0 16px; font-size: clamp(1rem, 2vw, 1.4rem); line-height: 1.05; }
.seo-guide-grid p { margin: 0; color: var(--muted-ink); font-size: 0.8rem; }
.formula-panel { display: grid; grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr); gap: 40px; margin-top: 28px; padding: clamp(26px, 4vw, 46px); color: var(--paper); background: var(--ink); }
.formula-panel h3 { color: var(--paper); }
.formula-panel ul { margin: 0; padding-left: 20px; }
.formula-panel li { padding: 5px 0; font-size: 0.78rem; }
.model-disclaimer { max-width: 960px; margin: 26px 0 0; color: var(--muted-ink); font-size: 0.7rem; }

.tool-cta { padding: clamp(72px, 10vw, 140px) 0; color: var(--paper); background: var(--ink); border-top: 3px solid var(--ink); }
.tool-cta .section-kicker,
.tool-cta h2 { color: var(--paper); }
.tool-cta h2 { max-width: 1000px; margin-bottom: 42px; }
.tool-cta .button { color: var(--ink); background: var(--paper); border-color: var(--paper); }
.tool-site .footer { color: var(--ink); background: var(--cream-2); border-top: 2px solid var(--ink); }
.tool-site .footer a { color: var(--ink); }

@media (max-width: 900px) {
  .tool-hero-grid,
  .blended-panel { grid-template-columns: 1fr; gap: 34px; }
  .tool-intro { max-width: 720px; }
  .methodology { grid-template-columns: 1fr 1fr; }
  .methodology h2 { grid-column: 1 / -1; }
  .seo-guide-header { grid-template-columns: 1fr; gap: 24px; }
  .seo-guide-header .section-kicker { grid-column: auto; margin-bottom: -8px; }
}

@media (max-width: 720px) {
  .tool-site .container { width: min(var(--container), calc(100% - 28px)); }
  .tool-site .nav { min-height: var(--site-header-height); gap: 8px; }
  .tool-site .brand { font-size: 1rem; }
  .tool-site .nav-actions { gap: 8px; }
  .tool-site .nav-actions .button { min-height: 42px; padding: 0 11px; font-size: 0.54rem; }
  .tool-site .desktop-label { display: none; }
  .tool-site .mobile-label { display: inline; }
  .tool-hero { padding: 48px 0 50px; }
  .tool-hero::after { right: -58%; }
  .tool-site h1 { font-size: clamp(42px, 12.5vw, 60px); line-height: 0.88; overflow-wrap: normal; word-break: normal; }
  .tool-site h2 { font-size: clamp(40px, 12vw, 58px); }
  .calculator-toolbar { align-items: stretch; flex-direction: column; }
  .utility-button { width: 100%; }
  .global-controls,
  .driver-controls,
  .motion-grid,
  .result-grid,
  .methodology { grid-template-columns: 1fr; }
  .motion-column,
  .motion-column + .motion-column { padding: 30px 0; border-left: 0; }
  .motion-column + .motion-column { border-top: 2px solid var(--ink); }
  .driver-controls { gap: 24px; }
  .guardrail-mode .segmented-control,
  .gross-margin-control .range-row { max-width: none; }
  .result-grid { gap: 18px; }
  .result-card { box-shadow: 5px 5px 0 var(--copper); }
  .hero-result { font-size: clamp(3.4rem, 20vw, 5.6rem); }
  .blended-panel { padding: 28px 20px; }
  .methodology h2 { grid-column: auto; }
  .seo-guide-grid,
  .formula-panel { grid-template-columns: 1fr; }
  .tool-cta .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .tool-site *,
  .tool-site *::before,
  .tool-site *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}