:root {
  --nori: #317f36;
  --nori-light: #3d9a44;
  --nori-dark: #27662c;
  --saffron: #d9a21b;
  --chili: #c2512a;
  --steam: #f3f2ef;
  --porcelain: #ffffff;
  --ink: #1c1b19;
  --stone: #8a8680;
  --line: #e5e3de;
  --nori-mute: #e8f3e9;
  --saffron-mute: #f8f0d8;
  --chili-mute: #f8e8e0;
  --shadow: 0 18px 50px rgba(28, 27, 25, 0.12);
  --radius: 20px;
  --radius-md: 12px;
  --max: 1120px;
  --header: 72px;
  --font-display: "Source Serif 4", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--steam);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--nori-dark);
}

a:hover {
  color: var(--nori);
}

:focus-visible {
  outline: 3px solid var(--saffron);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--ink);
  color: var(--porcelain);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 100;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(243, 242, 239, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header);
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 999px;
}

.nav a:hover {
  background: var(--nori-mute);
  color: var(--nori-dark);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--porcelain);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
  margin: 0 auto;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
}

.btn-primary {
  background: var(--nori);
  color: var(--porcelain);
}

.btn-primary:hover {
  background: var(--nori-dark);
  color: var(--porcelain);
}

.btn-secondary {
  background: var(--porcelain);
  color: var(--nori-dark);
  border: 1.5px solid var(--nori);
}

.btn-secondary:hover {
  background: var(--nori-mute);
  color: var(--nori-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--nori-dark);
}

.hero {
  padding: 48px 0 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nori-dark);
  background: var(--nori-mute);
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}

h1,
.h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}

h2,
.h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

h3 {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.3;
  margin: 0 0 8px;
}

.lede {
  font-size: 18px;
  color: var(--stone);
  margin: 0 0 24px;
  max-width: 42ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-note {
  color: var(--stone);
  font-size: 14px;
  margin: 0;
}

.play-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.hero-shot {
  justify-self: center;
  width: min(100%, 340px);
  filter: drop-shadow(var(--shadow));
}

.hero-shot img {
  width: 100%;
  border-radius: 28px;
}

.section {
  padding: 72px 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: 32px;
}

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

.shots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.shot-card {
  margin: 0;
}

.shot-card img {
  width: 100%;
  border-radius: 24px;
  box-shadow: var(--shadow);
  background: var(--porcelain);
}

.shot-card figcaption {
  margin-top: 12px;
  font-weight: 600;
  font-size: 14px;
}

.shot-scroll {
  display: none;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  background: var(--porcelain);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.icon-pill {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--nori-mute);
  color: var(--nori-dark);
  margin-bottom: 16px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  counter-reset: step;
}

.step {
  background: var(--porcelain);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--nori);
  margin-bottom: 8px;
}

.calc-preview {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.calc-preview .card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.stat-row:last-child {
  border-bottom: 0;
}

.stat-value {
  font-weight: 700;
}

.faq {
  display: grid;
  gap: 12px;
  max-width: 760px;
}

details {
  background: var(--porcelain);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
}

summary {
  cursor: pointer;
  font-weight: 700;
}

details p {
  margin: 10px 0 0;
  color: var(--stone);
}

.cta-band {
  background: var(--nori);
  color: var(--porcelain);
  border-radius: 28px;
  padding: 40px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.cta-band h2,
.cta-band p {
  color: var(--porcelain);
}

.cta-band p {
  opacity: 0.9;
  margin: 0;
}

.cta-band .btn-primary {
  background: var(--porcelain);
  color: var(--nori-dark);
}

.cta-band .btn-primary:hover {
  background: var(--saffron-mute);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.footer-brand {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.tiny {
  font-size: 13px;
  color: var(--stone);
}

.legal {
  max-width: 760px;
}

.legal p,
.legal li {
  color: var(--ink);
}

.legal h2 {
  font-size: 26px;
  margin-top: 32px;
}

.page-hero {
  padding: 40px 0 8px;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 6px;
}

.field > label,
.field span,
.field legend {
  font-size: 13px;
  font-weight: 700;
  color: var(--stone);
}

.field input,
.field select {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  background: var(--steam);
}

.units {
  display: flex;
  gap: 8px;
}

.units button {
  min-height: 40px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--steam);
  font-weight: 700;
  cursor: pointer;
}

.units button[aria-pressed="true"] {
  background: var(--nori);
  color: var(--porcelain);
  border-color: var(--nori);
}

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segmented label {
  position: relative;
  border: 1px solid var(--line);
  background: var(--steam);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

.segmented input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  appearance: none;
}

.segmented label:has(input:checked) {
  background: var(--nori);
  color: var(--porcelain);
  border-color: var(--nori);
}

.imperial {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.imperial.is-on {
  display: grid;
}

.result-hero {
  background: var(--nori);
  color: var(--porcelain);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}

.result-hero .caption {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.85;
}

.result-hero .value {
  font-family: var(--font-display);
  font-size: clamp(44px, 8vw, 64px);
  line-height: 1;
  margin: 8px 0;
}

.result-hero .unit {
  opacity: 0.85;
}

.hint {
  font-size: 13px;
  color: var(--stone);
}

.calc-stack {
  display: grid;
  gap: 24px;
}

.bmi-scale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.bmi-scale span {
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  padding: 8px 4px;
  border-radius: 8px;
}

.bmi-under {
  background: #e8eef3;
}

.bmi-ok {
  background: var(--nori-mute);
}

.bmi-over {
  background: var(--saffron-mute);
}

.bmi-obese {
  background: var(--chili-mute);
}

.macros {
  display: grid;
  gap: 10px;
}

.macro-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  display: flex;
}

.macro-bar i {
  display: block;
  height: 100%;
}

.macro-p {
  background: var(--nori);
}

.macro-c {
  background: var(--saffron);
}

.macro-f {
  background: var(--chili);
}

@media (max-width: 900px) {
  .hero-grid,
  .calc-preview,
  .calc-grid,
  .footer-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .features,
  .steps,
  .shots {
    grid-template-columns: 1fr 1fr;
  }

  .cta-band {
    display: grid;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .nav {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(var(--header) + 8px);
    background: var(--porcelain);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a,
  .nav .btn {
    width: 100%;
  }

  .hero {
    padding-top: 28px;
  }

  .shots {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 8px;
    margin-inline: -16px;
    padding-inline: 16px;
  }

  .shots .shot-card {
    flex: 0 0 72%;
    scroll-snap-align: start;
  }

  .features,
  .steps,
  .bmi-scale {
    grid-template-columns: 1fr;
  }

  .lede {
    max-width: none;
  }
}

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