/* ==========================================================================
   Cristo Faz Sentido — Landing Page
   Identidade: editorial, minimalista, premium
   ========================================================================== */

:root {
  --color-bg: #F7F3EA;
  --color-bg-alt: #FFFFFF;
  --color-text: #111111;
  --color-text-soft: #151515;
  --color-muted: #8A8378;
  --color-accent: #A88A4A;
  --color-border: rgba(17, 17, 17, 0.1);
  --color-border-strong: rgba(17, 17, 17, 0.18);

  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: Inter, system-ui, -apple-system, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  --container: min(72rem, 100% - 2.5rem);
  --container-narrow: min(42rem, 100% - 2.5rem);

  --header-height: 4.5rem;
  --transition: 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
  --shadow-soft: 0 1px 0 rgba(17, 17, 17, 0.06);
}

/* Reset & base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color var(--transition), opacity var(--transition);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
}

p {
  margin: 0 0 var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 1000;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-text);
  color: var(--color-bg);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-sm);
}

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

.container--narrow {
  width: var(--container-narrow);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.15;
}

.site-logo:hover {
  color: var(--color-text);
}

.site-logo__collection {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.site-logo__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
}

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

.site-nav__list a {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-muted);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  color: var(--color-text);
}

.site-nav__cta {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border-strong);
  color: var(--color-text) !important;
}

.site-nav__cta:hover {
  border-color: var(--color-accent);
  color: var(--color-accent) !important;
}

.site-nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: none;
  background: transparent;
}

.site-nav__toggle-bar {
  display: block;
  width: 1.5rem;
  height: 1px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

@media (min-width: 768px) {
  .site-nav__toggle {
    display: none;
  }

  .site-nav__list {
    display: flex;
  }
}

.site-nav__list.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  padding: var(--space-lg);
  gap: var(--space-md);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .site-nav__list.is-open {
    position: static;
    flex-direction: row;
    padding: 0;
    border: none;
    background: transparent;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.btn--primary:hover {
  background: var(--color-text-soft);
  border-color: var(--color-text-soft);
  color: var(--color-bg);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--tertiary,
.btn--ghost {
  background: transparent;
  color: var(--color-muted);
  border-color: transparent;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  padding-inline: 0.75rem;
}

.btn--tertiary:hover,
.btn--ghost:hover {
  color: var(--color-accent);
  border-color: transparent;
}

.btn--small {
  min-height: 2.5rem;
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
}

.btn--ghost.btn--small {
  text-decoration: none;
  border: 1px solid var(--color-border);
}

.btn--ghost.btn--small:hover {
  border-color: var(--color-accent);
}

/* Hero */
.hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  max-width: 52rem;
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.hero__headline {
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 500;
  line-height: 1.12;
  margin-bottom: var(--space-lg);
}

.hero__subheadline {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
  max-width: 38rem;
}

.hero__free {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

.hero__free-actions {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero__support {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-style: italic;
  line-height: 1.45;
  color: var(--color-text-soft);
  margin-bottom: var(--space-xl);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-accent);
}

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

.btn--disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
}

.section--free {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.section__subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--color-muted);
  margin: calc(var(--space-sm) * -1) 0 var(--space-lg);
}

.section--tension {
  background: var(--color-bg);
}

.section--collection {
  padding-top: var(--space-3xl);
}

.section--volumes {
  background: var(--color-bg-alt);
  padding-bottom: var(--space-3xl);
}

.section--manifesto {
  background: var(--color-text);
  color: var(--color-bg);
}

.section--manifesto .section__title {
  color: var(--color-bg);
}

.section--manifesto a:hover {
  color: var(--color-accent);
}

.section--download {
  background: var(--color-text);
  color: var(--color-bg);
}

.section--download .section__title,
.section--download .section__lead {
  color: var(--color-bg);
}

.section--download .section__lead {
  opacity: 0.75;
}

.section__eyebrow--light {
  color: rgba(247, 243, 234, 0.55);
}

.section--download .btn--secondary {
  color: var(--color-bg);
  border-color: rgba(247, 243, 234, 0.35);
}

.section--download .btn--secondary:hover {
  border-color: var(--color-bg);
  color: var(--color-text);
  background: var(--color-bg);
}

.section--download .btn:focus-visible {
  outline-color: var(--color-bg);
  outline-offset: 3px;
}

.section--download .btn--primary {
  background: var(--color-bg);
  color: var(--color-text);
  border-color: var(--color-bg);
}

.section--download .btn--primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

.collection-download {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.collection-download__figure {
  margin: 0;
  max-width: 20rem;
  margin-inline: auto;
}

.collection-download__figure img {
  width: 100%;
  height: auto;
  border: 1px solid rgba(247, 243, 234, 0.12);
  background: var(--color-bg);
}

.collection-download__note {
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: rgba(247, 243, 234, 0.55);
}

@media (min-width: 768px) {
  .collection-download {
    grid-template-columns: minmax(12rem, 16rem) 1fr;
    gap: var(--space-2xl);
  }

  .collection-download__figure {
    margin-inline: 0;
    max-width: none;
  }

  .collection-download .cta-row {
    justify-content: flex-start;
  }
}

.section--permissions {
  background: var(--color-bg-alt);
}

.permission-grid {
  display: grid;
  gap: var(--space-lg);
  margin: var(--space-xl) 0 var(--space-lg);
}

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

.permission-grid__col {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.permission-grid__title {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  color: var(--color-muted);
}

.permission-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.permission-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.permission-list--yes li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.permission-list--no li::before {
  content: "✗";
  position: absolute;
  left: 0;
  color: var(--color-muted);
}

.permission-note {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.6;
}

.section--share-cta {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.cta-row--start {
  justify-content: flex-start;
}

.copy-feedback {
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-accent);
}

.section--follow {
  border-top: 1px solid var(--color-border);
}

.share-callout--follow {
  margin-top: var(--space-xl);
}

.section--receive {
  background: var(--color-bg-alt);
}

.section--share {
  border-top: 1px solid var(--color-border);
}

.section--cta {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.section__header {
  margin-bottom: var(--space-xl);
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
}

.section__eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-lg);
}

.section__title--display {
  font-size: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__lead {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
}

.section__lead--centered {
  text-align: center;
  max-width: 40rem;
  margin-inline: auto;
}

/* Prose */
.prose p {
  margin-bottom: var(--space-md);
}

.prose__emphasis {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}

.pull-quote {
  margin: var(--space-xl) 0 0;
  padding: var(--space-lg) 0 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.pull-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

/* Volume cards */
.volumes-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.volume-card {
  display: grid;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition);
}

.volume-card:hover {
  border-color: var(--color-border-strong);
}

.volume-card__cover {
  position: relative;
  aspect-ratio: 2 / 3;
  max-width: 11rem;
  margin-inline: auto;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.volume-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--transition);
}

.volume-card__img.is-loaded {
  opacity: 1;
}

.volume-card__img.is-loaded + .volume-card__cover-placeholder {
  opacity: 0;
}

.volume-card__cover-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: opacity var(--transition);
}

.volume-card__label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.volume-card__title {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  margin-bottom: var(--space-sm);
}

.volume-card__subtitle {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
  font-style: italic;
}

.volume-card__description {
  margin-bottom: var(--space-md);
}

.volume-card__phrase {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text-soft);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  margin: 0 0 var(--space-md);
}

.volume-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  position: relative;
  z-index: 2;
}

.volume-card__actions .btn {
  position: relative;
  z-index: 1;
  pointer-events: auto;
  cursor: pointer;
}

@media (min-width: 768px) {
  .volume-card {
    grid-template-columns: 11rem 1fr;
    align-items: start;
    gap: var(--space-xl);
    padding: var(--space-xl);
  }

  .volume-card__cover {
    margin-inline: 0;
  }
}

/* Diferenciais */
.diff-grid {
  display: grid;
  gap: var(--space-lg);
}

.diff-item {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.diff-item__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.diff-item__text {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

@media (min-width: 640px) {
  .diff-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .diff-item--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .diff-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .diff-item--wide {
    grid-column: span 2;
  }
}

/* Audience */
.audience-list {
  display: grid;
  gap: var(--space-sm);
}

.audience-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--color-muted);
}

.audience-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
}

@media (min-width: 640px) {
  .audience-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm) var(--space-lg);
  }
}

/* Manifesto */
.manifesto-blocks {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.manifesto-block {
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(247, 243, 234, 0.15);
}

.manifesto-block:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.manifesto-block__no {
  font-size: 0.9375rem;
  color: rgba(247, 243, 234, 0.55);
  margin-bottom: var(--space-xs);
}

.manifesto-block__yes {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  line-height: 1.35;
  margin: 0;
  color: var(--color-bg);
}

.manifesto-block--final .manifesto-block__yes {
  color: var(--color-accent);
}

.manifesto-block--highlight {
  margin-top: var(--space-md);
  padding: var(--space-lg);
  border: 1px solid rgba(168, 138, 74, 0.45);
  border-bottom: none;
  background: rgba(247, 243, 234, 0.04);
}

.manifesto-block--highlight .manifesto-block__yes {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

/* Collection showcase */
.collection-showcase {
  max-width: 36rem;
  margin: 0 auto var(--space-xl);
}

.collection-showcase__img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

/* Purchase block */
.purchase-block {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
  text-align: center;
}

.purchase-block__figure {
  margin: 0;
  max-width: 20rem;
  margin-inline: auto;
}

.purchase-block__figure img {
  width: 100%;
  height: auto;
  border: 1px solid rgba(247, 243, 234, 0.12);
  background: var(--color-bg);
}

.purchase-block__content .section__title,
.purchase-block__content .section__lead {
  text-align: center;
}

.purchase-block__cta {
  position: relative;
  z-index: 2;
}

@media (min-width: 768px) {
  .purchase-block {
    grid-template-columns: minmax(12rem, 16rem) 1fr;
    gap: var(--space-2xl);
    text-align: left;
  }

  .purchase-block__figure {
    margin-inline: 0;
    max-width: none;
  }

  .purchase-block__content .section__title,
  .purchase-block__content .section__lead {
    text-align: left;
  }

  .purchase-block .cta-row {
    justify-content: flex-start;
  }
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.cta-row--secondary {
  margin-bottom: 0;
}

.cta-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xl) 0;
}

.cta-sale__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
  text-align: center;
}

/* Receive grid */
.receive-volumes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.receive-volumes img {
  width: 4.5rem;
  height: 4.5rem;
  object-fit: cover;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

@media (min-width: 640px) {
  .receive-volumes img {
    width: 5.5rem;
    height: 5.5rem;
  }
}

.receive-grid {
  display: grid;
  gap: var(--space-md);
}

.receive-item {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.receive-item__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.receive-item__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

@media (min-width: 640px) {
  .receive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .receive-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Share section */
.prose--share strong {
  font-weight: 500;
  color: var(--color-text);
}

.share-callout {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  line-height: 1.4;
  margin: var(--space-lg) 0;
}

.share-callout a {
  text-decoration: none;
  color: var(--color-accent);
}

.share-hashtags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-lg);
}

.share-hashtags li {
  font-size: 0.8125rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.share-closing {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

/* Interest form */
.interest-form {
  margin-bottom: var(--space-xl);
}

.interest-form__fields {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.label-optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 5rem;
}

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

  .form-group--full {
    grid-column: 1 / -1;
  }
}

.interest-form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
  padding: var(--space-md) 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--color-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 0 var(--space-md);
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

/* Footer */
.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.site-footer__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.site-footer__tagline {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
  max-width: 28rem;
}

.site-footer__author {
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.site-footer__terms {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin: var(--space-sm) 0 0;
  max-width: 28rem;
}

.site-footer__handle {
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
}

.site-footer__handle a {
  text-decoration: none;
  color: var(--color-muted);
}

.site-footer__handle a:hover {
  color: var(--color-accent);
}

.site-footer__copy {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-lg);
}

.site-footer__nav a {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-muted);
}

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

/* Reveal animation */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(1.25rem);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
  }

  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}