:root {
  --bg: #050505;
  --surface: #0c0c0e;
  --fg: #f4f1ea;
  --muted: #a9a59d;
  --faint: #7b776f;
  --line: rgba(255, 255, 255, 0.105);
  --line-soft: rgba(255, 255, 255, 0.06);
  --accent: #d6b56f;
  --ink: #050505;
  --sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

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

html { color-scheme: dark; background: var(--bg); }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--ink); }

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 10;
  transform: translateY(-180%);
  padding: 0.65rem 0.9rem;
  background: var(--accent);
  color: var(--ink);
  font: 500 0.72rem/1 var(--mono);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.skip-link:focus { transform: none; }

.page {
  width: min(100%, 2048px);
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(1.5rem, 3.7vw, 4.6rem) clamp(1.25rem, 4.7vw, 6rem) clamp(1.25rem, 2.8vw, 3.5rem);
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2rem;
  padding-bottom: clamp(1.1rem, 1.7vw, 2rem);
  border-bottom: 1px solid var(--line-soft);
  font: 400 clamp(0.62rem, 0.5rem + 0.18vw, 0.78rem)/1 var(--mono);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.masthead .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--muted);
  text-decoration: none;
}

.masthead .brand img { width: 1.15rem; height: 1.15rem; }
.masthead .brand:hover span { color: var(--fg); }
.masthead p { margin: 0; color: var(--accent); }

.hero { padding-top: clamp(3rem, 7.2vh, 6.4rem); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: min(25rem, 100%);
  margin-bottom: clamp(1.8rem, 3.8vh, 3rem);
  color: var(--accent);
  font: 400 clamp(0.68rem, 0.56rem + 0.2vw, 0.82rem)/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow i { width: 0.72rem; height: 1px; background: var(--accent); }
.eyebrow span:last-child { white-space: nowrap; }
.eyebrow::after { content: ""; width: 12rem; height: 1px; background: var(--line); }

h1 {
  max-width: 22ch;
  margin: 0;
  font-size: clamp(3.35rem, 5.45vw, 7rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.052em;
  text-wrap: balance;
}

.calculator {
  align-self: center;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  gap: clamp(3rem, 5vw, 6rem);
  padding: clamp(2.7rem, 6vh, 5.5rem) 0 clamp(2.4rem, 4.5vh, 4.2rem);
}

.controls { display: grid; gap: clamp(1.8rem, 3.2vh, 2.8rem); }
.control { min-width: 0; }

.control__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.25rem;
  font: 400 clamp(0.7rem, 0.57rem + 0.2vw, 0.84rem)/1.4 var(--mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.control label { color: var(--muted); }

.control output {
  flex: none;
  color: var(--accent);
  font-size: clamp(0.95rem, 0.75rem + 0.35vw, 1.25rem);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  --position: 0%;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 1.75rem;
  margin: 0.65rem 0 0;
  background: transparent;
  cursor: ew-resize;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  background: var(--line);
}

input[type="range"]::-moz-range-track {
  height: 3px;
  background: var(--line);
}

input[type="range"]::-moz-range-progress {
  height: 3px;
  background: var(--accent);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: -0.5rem;
  border: 0;
  border-radius: 0;
  background: var(--accent);
  box-shadow: calc((var(--position) * -1) - 0.575rem) 0 0 var(--position) var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 1.15rem;
  height: 1.15rem;
  border: 0;
  border-radius: 0;
  background: var(--accent);
}

input[type="range"]:focus-visible { outline: none; }

input[type="range"]:focus-visible::-webkit-slider-thumb,
input[type="range"]:hover::-webkit-slider-thumb {
  box-shadow: 0 0 0 5px var(--bg), 0 0 0 7px var(--accent);
}

input[type="range"]:focus-visible::-moz-range-thumb,
input[type="range"]:hover::-moz-range-thumb {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.range-ends {
  display: flex;
  justify-content: space-between;
  margin-top: -0.15rem;
  color: var(--faint);
  font: 400 0.58rem/1 var(--mono);
  letter-spacing: 0.08em;
}

.guidance {
  max-width: 62ch;
  margin: 0.25rem 0 0;
  color: var(--faint);
  font: 400 clamp(0.68rem, 0.59rem + 0.12vw, 0.78rem)/1.7 var(--mono);
}

.result {
  min-width: 0;
  padding-left: clamp(2.5rem, 4.7vw, 5.25rem);
  border-left: 1px solid var(--line);
}

.result__label {
  margin: 0;
  color: var(--muted);
  font: 400 clamp(0.68rem, 0.57rem + 0.18vw, 0.8rem)/1.4 var(--mono);
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.result__value {
  margin: 0.45rem 0 0;
  color: var(--accent);
  font-size: clamp(4.9rem, 8vw, 10rem);
  font-weight: 500;
  line-height: 0.88;
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
}

.result__context {
  max-width: 64ch;
  margin: clamp(1.25rem, 2.6vh, 2rem) 0 0;
  color: #b9b9b9;
  font: 400 clamp(0.78rem, 0.68rem + 0.16vw, 0.92rem)/1.7 var(--mono);
}

.breakdown {
  margin: clamp(1.4rem, 2.8vh, 2.3rem) 0 0;
  border-top: 1px solid var(--line);
}

.breakdown > div {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.72rem 0;
  border-bottom: 1px solid var(--line-soft);
  font: 400 clamp(0.7rem, 0.62rem + 0.12vw, 0.82rem)/1.35 var(--mono);
}

.breakdown dt { color: var(--muted); }
.breakdown dd { margin: 0; color: var(--fg); font-variant-numeric: tabular-nums; }
.breakdown dd.deduction { color: var(--muted); }

.breakdown > .breakdown__total {
  align-items: baseline;
  padding-top: 1rem;
  border-bottom: 0;
}

.breakdown__total dt { color: var(--fg); }

.breakdown__total dd {
  color: var(--accent);
  font-size: clamp(1.4rem, 1.05rem + 0.75vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.035em;
}

.breakdown__total dd.is-negative { color: #ff8a72; }

.cover-line {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font: 400 clamp(0.68rem, 0.59rem + 0.13vw, 0.8rem)/1.65 var(--mono);
}

.cover-line strong { color: var(--accent); font-weight: 500; }

.footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 2rem;
  padding-top: clamp(1.1rem, 2vh, 1.8rem);
  border-top: 1px solid var(--line-soft);
  color: var(--faint);
  font: 400 clamp(0.6rem, 0.53rem + 0.1vw, 0.7rem)/1.65 var(--mono);
}

.footer p { max-width: 92ch; margin: 0; }
.footer__meta { display: flex; gap: 1.5rem; white-space: nowrap; text-transform: uppercase; letter-spacing: 0.1em; }

@media (max-width: 760px) {
  .page { min-height: auto; }
  .calculator { grid-template-columns: 1fr; gap: 3.2rem; }
  .result { padding: 2.7rem 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .result__value { font-size: clamp(5rem, 14vw, 8.5rem); }
  .footer { grid-template-columns: 1fr; }
  .footer__meta { white-space: normal; }
}

@media (min-width: 761px) and (max-height: 800px) {
  .page { padding-top: 1.75rem; padding-bottom: 1.35rem; }
  .masthead { min-height: 1.5rem; padding-bottom: 0.85rem; }
  .hero { padding-top: 1.7rem; }
  .eyebrow { margin-bottom: 1rem; }
  h1 { font-size: clamp(3.25rem, 5vw, 4rem); }
  .calculator { gap: clamp(2.5rem, 5vw, 4rem); padding: 1.8rem 0 1.25rem; }
  .controls { gap: 1.15rem; }
  .control__heading { font-size: 0.68rem; }
  .control output { font-size: 0.95rem; }
  input[type="range"] { height: 1.45rem; margin-top: 0.45rem; }
  .guidance { font-size: 0.62rem; line-height: 1.55; }
  .result { padding-left: 3.75rem; }
  .result__value { font-size: clamp(5rem, 7.6vw, 6.5rem); }
  .result__context { margin-top: 1rem; font-size: 0.7rem; }
  .breakdown { margin-top: 1rem; }
  .breakdown > div { padding: 0.48rem 0; font-size: 0.67rem; }
  .breakdown > .breakdown__total { padding-top: 0.75rem; }
  .cover-line { margin-top: 0.45rem; font-size: 0.63rem; }
  .footer { padding-top: 0.7rem; font-size: 0.56rem; }
}

@media (max-width: 640px) {
  .page { padding: 1.25rem 1.2rem 1.5rem; }
  .masthead p { display: none; }
  .hero { padding-top: 3rem; }
  h1 { max-width: 12ch; font-size: clamp(3rem, 15vw, 5rem); }
  .calculator { padding-top: 3.2rem; }
  .control__heading { align-items: flex-end; }
  .control label { max-width: 21ch; }
  .result__value { font-size: clamp(4.2rem, 21vw, 6.8rem); }
  .breakdown > div { align-items: flex-start; }
  .breakdown dt { max-width: 18ch; }
  .footer__meta { display: grid; gap: 0.35rem; }
}

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

/* 2026 re-theme: headings use the studio display face */
h1, h2, .welcome h1, .products-hero h1, .hero h1 { font-family: "Bricolage Grotesque", "Manrope", sans-serif; font-weight: 600; letter-spacing: -.03em; }