:root {
  --ground: #0a0a0a;
  --surface: #17181b;
  --surface-2: #202226;
  --line: #2b2d32;
  --ink: #f5f2ea;
  --ink-dim: #a39d90;
  --ink-faint: #6f6a60;
  --marigold: #ffd966;
  --marigold-ink: #241d00;
  --sage: #93c47d;
  --sage-ink: #12240b;
  --red: #e06666;

  --display: "Big Shoulders Display", "Arial Narrow", Arial, sans-serif;
  --body: "Public Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
}

html, body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body { overflow-x: hidden; }

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 800;
  text-wrap: balance;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- header ---------- */

header {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle:focus-visible { outline: 2px solid var(--marigold); outline-offset: 3px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  height: 40px;
  width: auto;
  display: block;
}

header nav { display: flex; align-items: center; gap: 28px; }
header nav a {
  font-family: var(--body);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink-dim);
  text-decoration: none;
}
header nav a:hover, header nav a:focus-visible { color: var(--ink); }
header nav a:focus-visible { outline: 2px solid var(--marigold); outline-offset: 4px; }

/* ---------- road-stripe divider ---------- */

.stripe {
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--ink-faint) 0 26px, transparent 26px 46px);
  opacity: 0.4;
}

/* ---------- hero ---------- */

.hero {
  padding: 88px 0 80px;
  text-align: center;
}

.eyebrow {
  font-family: var(--body);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--marigold);
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(36px, 5.4vw, 60px);
  line-height: 1.05;
  margin: 0 auto 24px;
  max-width: 30ch;
}
.hero h1 .accent { color: var(--red); }
.hero h1 .accent-green { color: var(--sage); }

.hero p.lede {
  font-size: 19px;
  color: var(--ink-dim);
  max-width: 52ch;
  margin: 0 auto 36px;
}

.cta-row { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--body);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  padding: 15px 28px;
  border-radius: 10px;
  transition: transform 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--marigold); outline-offset: 3px; }

.btn-primary { background: var(--marigold); color: var(--marigold-ink); }
.btn-ghost { color: var(--ink-dim); font-weight: 600; }
.btn-ghost:hover { color: var(--ink); }

/* ---------- section shell ---------- */

section { padding: 76px 0; scroll-margin-top: 92px; }
main#top { scroll-margin-top: 0; }
.section-head { max-width: 620px; margin-bottom: 48px; }
.section-head.centered { max-width: 640px; margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 40px); margin-bottom: 14px; }
.section-head p { color: var(--ink-dim); font-size: 17px; }
#calculators .section-head { max-width: none; }
#calculators .section-head p { white-space: nowrap; }

/* ---------- calculator catalog ---------- */

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.calc-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.calc-card:hover, .calc-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--marigold);
}
.calc-card:focus-visible { outline: 2px solid var(--marigold); outline-offset: 3px; }

.calc-card .cc-thumb {
  aspect-ratio: 16 / 10;
  background: var(--ground);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.calc-card .cc-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
.calc-card .cc-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--sage);
  color: var(--sage-ink);
  font-family: var(--body);
  font-weight: 700;
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 999px;
}

.calc-card .cc-body {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.calc-card .cc-trade {
  font-family: var(--body);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--marigold);
  margin-bottom: 8px;
}
.calc-card h3 {
  font-size: 22px;
  text-transform: none;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.calc-card .cc-desc {
  color: var(--ink-dim);
  font-size: 14.5px;
  margin-bottom: 20px;
  flex: 1;
}
.calc-card .cc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.calc-card .cc-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--mono);
}
.calc-card .cc-price .was {
  color: var(--ink-faint);
  text-decoration: line-through;
  font-size: 14px;
}
.calc-card .cc-price .now {
  color: var(--ink);
  font-size: 20px;
  font-weight: 600;
}
.calc-card .cc-price .cc-discount {
  font-family: var(--body);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sage);
}
.calc-card .cc-cta {
  font-family: var(--body);
  font-weight: 700;
  font-size: 14px;
  color: var(--marigold-ink);
  background: var(--marigold);
  padding: 10px 16px;
  border-radius: 8px;
  white-space: nowrap;
}

/* coming soon card */
.calc-card.soon {
  align-items: center;
  justify-content: center;
  text-align: center;
  border-style: dashed;
  cursor: default;
}
.calc-card.soon:hover { transform: none; border-color: var(--line); }
.calc-card.soon .cc-body { align-items: center; justify-content: center; flex: none; padding: 44px 22px; }
.calc-card.soon .cc-trade { color: var(--ink-faint); margin-bottom: 12px; }
.calc-card.soon h3 { color: var(--ink-dim); font-size: 19px; }

/* ---------- about ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-grid .about-photo {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.about-grid .about-photo img { width: 100%; display: block; }
.about-grid p { color: var(--ink-dim); margin-bottom: 18px; }
.about-grid p:last-child { margin-bottom: 0; }
.about-grid strong { color: var(--ink); font-weight: 600; }

/* ---------- testimonial ---------- */

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  max-width: 1040px;
  margin: 0 auto;
}
.testimonial-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.testimonial-item p {
  font-size: 18px;
  font-style: italic;
  line-height: 1.6;
  color: var(--ink-dim);
  margin-bottom: 16px;
}
.testimonial-item cite {
  display: block;
  font-style: normal;
  font-family: var(--body);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- faq ---------- */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 36px 32px;
}
.faq-item h3 {
  font-size: 17px;
  text-transform: none;
  margin-bottom: 10px;
  letter-spacing: 0;
}
.faq-item p { color: var(--ink-dim); font-size: 15px; }

/* ---------- product page ---------- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-dim);
  text-decoration: none;
  margin-bottom: 32px;
}
.back-link:hover, .back-link:focus-visible { color: var(--ink); }

.product-embed-frame {
  background: transparent;
}

.product-embed-frame iframe {
  max-width: 100% !important;
  width: 100% !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

/* ---------- contact ---------- */

.contact-shell { max-width: 560px; }

.form-field { margin-bottom: 22px; }
.form-field label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--ink);
}
.form-field input,
.form-field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
}
.form-field textarea { min-height: 150px; resize: vertical; }
.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--marigold);
  outline-offset: 2px;
  border-color: var(--marigold);
}

.contact-shell .btn-primary { border: none; cursor: pointer; font-size: 16px; }
.contact-shell .btn-primary[disabled] { opacity: 0.6; cursor: default; }

.form-status { margin-top: 18px; font-size: 14px; min-height: 20px; }
.form-status.success { color: var(--sage); }
.form-status.error { color: var(--red); }

/* ---------- footer ---------- */

footer { padding: 56px 0 64px; }
.foot-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}
.foot-brand { font-family: var(--display); font-weight: 800; font-size: 18px; text-transform: uppercase; }
.foot-meta { color: var(--ink-faint); font-size: 14px; margin-top: 6px; }
.foot-links { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.foot-links a { font-size: 14px; color: var(--ink-dim); text-decoration: none; }
.foot-links a:hover, .foot-links a:focus-visible { color: var(--ink); }
.foot-links a:focus-visible { outline: 2px solid var(--marigold); outline-offset: 3px; }

.foot-copyright {
  font-size: 12px;
  color: var(--ink-faint);
}

@media (max-width: 780px) {
  .about-grid { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .brand-logo { height: 32px; }
  #calculators .section-head p { white-space: normal; }

  .nav-toggle { display: flex; }

  header nav {
    display: none;
    position: absolute;
    top: calc(100% + 22px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ground);
    border-bottom: 1px solid var(--line);
    padding: 4px 32px 12px;
  }
  header nav.nav-open { display: flex; }
  header nav a {
    padding: 14px 0;
    border-top: 1px solid var(--line);
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn, .calc-card { transition: none; }
}