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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + var(--space-sm));
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  padding-top: var(--header-height);
}

#main-content {
  flex: 1 0 auto;
}

/* Hero plein écran sous le header flottant (accueil) */
body:has(#hero) {
  padding-top: 0;
}

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

a {
  color: var(--color-accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-cyan);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent-cyan);
  outline-offset: 2px;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(var(--space-xl), 6vw, var(--space-3xl));
}

.section {
  padding-block: var(--space-xl);
  background: var(--section-bg, var(--section-band-light));
  color: var(--section-text, var(--section-on-light-text));
}

/* Alternance blanc / noir — bandes explicites (accueil) ou nth-child (autres pages) */
#main-content > section.section-band--light,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(odd) {
  --section-bg: var(--section-band-light);
  --section-text: var(--section-on-light-text);
  --section-text-muted: var(--section-on-light-muted);
  --section-title-color: var(--section-on-light-text);
  --section-subtitle-color: var(--section-on-light-muted);
}

#main-content > section.section-band--dark,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) {
  --section-bg: var(--section-band-dark);
  --section-text: var(--section-on-dark-text);
  --section-text-muted: var(--section-on-dark-muted);
  --section-title-color: var(--section-on-dark-text);
  --section-subtitle-color: var(--section-on-dark-muted);
}

#main-content > section.section-band--dark .section-lead,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .section-lead {
  color: var(--section-on-dark-text);
}

#main-content > section.section-band--dark .text-link,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .text-link {
  color: #93c5fd;
}

#main-content > section.section-band--dark :is(
  .offer-block,
  .bible-card__content,
  .card,
  .trust-item,
  .realisation-card,
  .diff-list__item,
  .projects-approach__item,
  .projects-empty,
  .guarantee-block
) .text-link,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) :is(
  .offer-block,
  .bible-card__content,
  .card,
  .trust-item,
  .realisation-card,
  .diff-list__item,
  .projects-approach__item,
  .projects-empty,
  .guarantee-block
) .text-link {
  color: var(--color-accent-text);
}

#main-content > section.section-band--dark .marquee-section__intro,
#main-content > section.section-band--dark .marquee-section__title,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .marquee-section__intro,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .marquee-section__title {
  color: var(--section-on-dark-text);
}

#main-content > section.section-band--dark .section-subtitle,
#main-content > section.section-band--dark .process-step__description,
#main-content > section.section-band--dark .faq-answer__inner,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .section-subtitle,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .process-step__description,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .faq-answer__inner {
  color: var(--section-on-dark-muted);
}

#main-content > section.section-band--dark .process-step__title,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(even) .process-step__title {
  color: var(--section-on-dark-text);
}

#main-content > section.section-band--light .process-step__description,
#main-content > section.section-band--light .faq-answer__inner,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(odd) .process-step__description,
#main-content > section:not(.hero):not(.section-band--light):not(.section-band--dark):nth-child(odd) .faq-answer__inner {
  color: var(--section-on-light-muted);
}

/* Cartes claires : texte foncé même dans une bande sombre (WCAG sur #fff) */
#main-content > section:not(.hero) :is(
  .bible-card__content,
  .offer-block,
  .offer-tier,
  .card,
  .trust-item,
  .guarantee-block,
  .marquee__card-slot,
  .marquee__card-overlay,
  .diff-list__item,
  .projects-approach__item,
  .projects-empty,
  .realisation-card
) {
  color: var(--color-on-elevated);
}

#main-content > section:not(.hero) :is(
  .bible-card__content,
  .offer-block,
  .offer-tier,
  .card,
  .trust-item,
  .guarantee-block,
  .marquee__card-overlay
) :is(
  .bible-card__description,
  .bible-card__benefit,
  .offer-block__description,
  .offer-tier__feature,
  .trust-item__description,
  .guarantee-block__item,
  .marquee__card-summary,
  .marquee__card-detail,
  .card p
) {
  color: var(--color-on-elevated-body);
  font-weight: 500;
}

#main-content > section:not(.hero) :is(
  .bible-card__content,
  .offer-block,
  .offer-tier,
  .card,
  .trust-item
) :is(
  .bible-card__intro,
  .bible-card__title,
  .offer-tier__name,
  .trust-item__title,
  .card h3
) {
  color: var(--color-on-elevated);
}

/* Typographie compacte — tout le site sauf le hero */
#main-content > section:not(.hero) {
  background: var(--section-bg, var(--section-band-light));
  color: var(--section-text, var(--section-on-light-text));
  padding-block: clamp(2rem, 4vw, 3rem) clamp(2.4rem, 4.8vw, 3.6rem);
  --section-title-size: clamp(1.2rem, 2.35vw, 1.55rem);
  --section-subtitle-size: 0.875rem;
  font-size: 0.875rem;
  line-height: 1.55;
}

#main-content > section:not(.hero) .section-title {
  margin-top: clamp(0.4rem, 1vw, 0.85rem);
  margin-bottom: var(--space-xs);
  line-height: 1.22;
  text-wrap: balance;
}

#main-content > section:not(.hero) .section-subtitle {
  margin-bottom: var(--space-md);
  line-height: 1.5;
  max-width: 36rem;
}

#main-content > section:not(.hero) .section-lead {
  font-size: clamp(0.8125rem, 1.85vw, 0.9375rem);
  line-height: 1.5;
  margin-bottom: var(--space-sm);
  max-width: 38rem;
}

#main-content .faq-question {
  font-size: 0.875rem;
  padding: var(--space-md) 0;
  color: var(--section-text, var(--color-text));
  font-weight: 700;
}

#main-content .faq-question__icon {
  font-size: 1rem;
  color: var(--section-text, var(--color-text));
}

#main-content .faq-answer__inner {
  font-size: 0.8125rem;
  line-height: 1.55;
  padding-bottom: var(--space-md);
  color: var(--section-text-muted, var(--color-text-muted));
  font-weight: 500;
}

#main-content > section:not(.hero) .card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

#main-content > section:not(.hero) .card p {
  font-size: 0.8125rem;
  line-height: 1.55;
  font-weight: 500;
}

.section-title {
  font-family: var(--section-title-font, var(--font-sans));
  font-size: var(--section-title-size, clamp(1.75rem, 4vw, 2.5rem));
  font-weight: var(--section-title-weight, 700);
  font-style: var(--section-title-style, normal);
  letter-spacing: var(--section-title-tracking, -0.02em);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  color: var(--section-title-color, var(--section-title-ink));
}

.section-lead {
  font-family: var(--section-subtitle-font, var(--font-sans));
  font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
  font-weight: 500;
  color: var(--section-title-color, var(--section-title-ink));
  max-width: 720px;
  margin-bottom: var(--space-md);
  line-height: 1.65;
}

.section-subtitle {
  font-family: var(--section-subtitle-font, var(--font-sans));
  font-size: var(--section-subtitle-size, 1.125rem);
  font-weight: var(--section-subtitle-weight, 400);
  color: var(--section-subtitle-color, var(--section-subtitle-ink));
  max-width: 640px;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.text-serif {
  font-family: var(--font-serif);
  font-style: italic;
}

.text-highlight {
  color: var(--color-accent-neon);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-cyan);
  text-underline-offset: 4px;
}

.text-link {
  color: var(--color-accent-blue);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.text-link:hover {
  border-bottom-color: var(--color-accent-cyan);
}

.hidden {
  display: none !important;
}