:root {
  --ink: #16140f;
  --ink-soft: #423d33;
  --cream: #f6f0e4;
  --paper: #fffdf8;
  --accent: #ff4315;
  --accent-text: #c43410;
  --line: #e2d8c3;
  --muted: #6f6858;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;

  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;
}

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

html {
  background: var(--cream);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

button, input, select, textarea {
  font-family: inherit;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.9rem 1.6rem;
  border-radius: 100px;
  border: 1.5px solid var(--accent);
  background: var(--accent);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.btn-arrow {
  transition: transform 180ms ease;
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn, .btn-arrow {
    transition: none;
  }
}

/* Header */

.header {
  position: relative;
  z-index: 10;
  padding-block: var(--space-md);
}

.header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  white-space: nowrap;
}

.nav {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 180ms ease;
}

.nav a:hover {
  color: var(--accent-text);
}

.header__cta {
  padding: 0.75rem 1.2rem;
  font-size: 0.9375rem;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle__line {
  transition: transform 220ms ease;
  transform-box: fill-box;
  transform-origin: center;
}

.nav-toggle.is-open .nav-toggle__line--top {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__line--bottom {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-md) var(--gutter) var(--space-sm);
  border-top: 1px solid var(--line);
  margin-top: var(--space-md);
}

.mobile-nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 1.0625rem;
  padding: 0.6rem 0;
}

@media (min-width: 860px) {
  .nav {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }
}

/* Hero */

.hero {
  position: relative;
  overflow: clip;
  isolation: isolate;
  min-height: clamp(480px, 62vw, 720px);
  display: flex;
  align-items: center;
  padding-block: var(--space-2xl);
  background: #ffffff;
}

.hero__bg {
  position: absolute;
  inset: -12% 0;
  z-index: 0;
  background: #ffffff url('images/hero-bg.jpg') center center / cover no-repeat;
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg {
    transform: none !important;
  }
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.hero__headline {
  font-size: clamp(3.25rem, 10vw, 7rem);
  font-weight: 600;
  margin-top: var(--space-sm);
}

.hero__sub {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--ink-soft);
  max-width: 34ch;
  margin-inline: auto;
  margin-top: var(--space-md);
  line-height: 1.5;
}

.hero__cta {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.btn-lg {
  font-size: 1.0625rem;
  padding: 1.05rem 1.9rem;
}

.hero__note {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--muted);
  max-width: 42ch;
  margin-inline: auto;
}

@media (max-width: 640px) {
  .hero {
    min-height: 0;
  }
}

/* Sub-hero */

.subhero {
  background: var(--ink);
  color: var(--cream);
  padding-block: var(--space-lg);
}

.subhero__line {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.4;
  text-align: center;
  max-width: 46ch;
  margin-inline: auto;
}

.subhero__highlight {
  color: var(--accent);
}

/* Method */

.method {
  padding-block: var(--space-2xl);
}

.method__grid {
  list-style: none;
  margin: var(--space-lg) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

.method__item {
  padding-top: var(--space-md);
  border-top: 1.5px solid var(--line);
}

.method__n {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--accent-text);
  letter-spacing: 0.08em;
}

.method__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  margin-top: var(--space-xs);
}

.method__copy {
  margin-top: var(--space-sm);
  color: var(--ink-soft);
  font-size: 1.0625rem;
  max-width: 34ch;
}

@media (min-width: 760px) {
  .method__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }
}

/* Offer */

.offer {
  padding-block: var(--space-2xl);
}

.offer__heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin-top: var(--space-sm);
  max-width: 20ch;
}

.offer__grid {
  margin-top: var(--space-xl);
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

.offer-card {
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
}

.offer-card__step {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.offer-card__name {
  font-size: 1.875rem;
  font-weight: 600;
  margin-top: var(--space-xs);
}

.offer-card__subtitle {
  font-size: 0.875rem;
  color: var(--accent-text);
  font-weight: 600;
  margin-top: 0.2rem;
}

.offer-card__description {
  margin-top: var(--space-sm);
  color: var(--ink-soft);
  font-size: 1rem;
  min-height: 3rem;
}

.offer-card__price {
  margin-top: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
}

.offer-card__tiers {
  list-style: none;
  margin: var(--space-md) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex-grow: 1;
}

.tier {
  padding-top: var(--space-sm);
  border-top: 1px solid var(--line);
}

.tier__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}

.tier__name {
  font-weight: 600;
  font-size: 1rem;
}

.tier__price {
  font-weight: 700;
  color: var(--ink);
}

.tier__detail {
  margin-top: 0.35rem;
  font-size: 0.9375rem;
  color: var(--ink-soft);
}

.offer-card__footnote {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  font-style: italic;
  color: var(--muted);
}

@media (min-width: 900px) {
  .offer__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Audit form */

.audit {
  padding-block: var(--space-2xl);
}

.audit__inner {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

.audit__heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  margin-top: var(--space-sm);
  max-width: 16ch;
}

.audit__copy {
  margin-top: var(--space-md);
  color: var(--ink-soft);
  font-size: 1.0625rem;
  max-width: 36ch;
}

.audit__alt {
  margin-top: var(--space-sm);
  color: var(--muted);
  font-size: 0.9375rem;
}

.audit__alt a {
  color: var(--accent-text);
  font-weight: 600;
}

.audit__form {
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.field-row {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-size: 0.9375rem;
  font-weight: 600;
}

.field label span {
  color: var(--accent-text);
}

.field select,
.field input {
  font-size: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 10px;
  border: 1.5px solid var(--line);
  background: var(--cream);
  color: var(--ink);
  min-height: 44px;
}

.field select:focus-visible,
.field input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.audit__submit {
  width: 100%;
  justify-content: center;
  margin-top: var(--space-xs);
}

.audit__privacy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--muted);
}

@media (min-width: 640px) {
  .field-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .audit__inner {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }
}

/* About */

.about {
  padding-block: var(--space-2xl);
  text-align: center;
}

.about__statement {
  margin-top: var(--space-md);
  margin-inline: auto;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.35;
  max-width: 22ch;
}

/* Footer CTA + footer */

.footer-cta {
  background: var(--ink);
  color: var(--cream);
  padding-block: var(--space-2xl);
}

.footer-cta__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.footer-cta__heading {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  color: var(--cream);
  max-width: 16ch;
}

.footer-cta .btn:hover {
  border: 1px solid var(--accent);
}

.footer {
  background: var(--ink);
  color: var(--muted);
  border-top: 1px solid rgba(246, 240, 228, 0.12);
  padding-block: var(--space-lg);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--cream);
  text-decoration: none;
  font-size: 1.0625rem;
}

.footer__nav {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer__nav a:hover {
  color: var(--cream);
}

.footer__copy {
  font-size: 0.8125rem;
}

@media (min-width: 700px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}