/* ============================================================
   DBCAS Hairstyles — structure : nav, hero, sections, footer
   ============================================================ */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section {
  padding-block: var(--section-y);
}

.section--tint { background: var(--sand); }
.section--paper { background: var(--paper); }

.section--dark {
  background: var(--forest-2);
  color: var(--ivory);
}

.section--dark .eyebrow { color: var(--honey); }
.section--dark .lede { color: rgba(248, 243, 234, 0.74); }
.section--dark a { text-decoration-color: rgba(248, 243, 234, 0.4); }

.section-head {
  max-width: 62ch;
  margin-bottom: clamp(2.25rem, 5vw, 3.75rem);
}

/* ---------- Navigation ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(248, 243, 234, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: 1.24rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
}

.nav__brand span {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.6vw, 2.1rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  font-size: 0.895rem;
  text-decoration: none;
  padding-block: 0.4rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}

.nav__links a:hover,
.nav__links a[aria-current='page'] {
  border-bottom-color: var(--copper);
}

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  padding: 0.5rem 0.8rem;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius);
}

@media (max-width: 800px) {
  .nav__toggle { display: block; }

  .nav__links {
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ivory);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--pad-x) 1.35rem;
    display: none;
  }

  .nav__links[data-open='true'] { display: flex; }

  .nav__links li { border-top: 1px solid var(--line); }
  .nav__links li:first-child { border-top: 0; }

  .nav__links a {
    display: block;
    padding: 0.95rem 0;
    font-size: 1.02rem;
    border-bottom: 0;
  }

  .nav__links .btn {
    margin-top: 0.9rem;
    text-align: center;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 6rem);
}

.hero__title {
  margin-bottom: 1.6rem;
  font-variation-settings: 'opsz' 144, 'SOFT' 40, 'WONK' 1;
}

.hero__title em {
  font-style: italic;
  color: var(--copper);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.1rem;
}

.hero__media {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--sand);
  overflow: hidden;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
}

/* Bandeau de faits sous le hero — chaque item est verifiable, aucun chiffre invente */
.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.hero__facts div {
  padding: 1.35rem 0;
  border-left: 1px solid var(--line);
  padding-left: clamp(0.9rem, 2vw, 1.75rem);
}

.hero__facts div:first-child {
  border-left: 0;
  padding-left: 0;
}

.hero__facts dt {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.hero__facts dd {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
}

@media (max-width: 860px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .hero__media {
    aspect-ratio: 3 / 3.4;
    order: -1;
  }

  .hero__facts { grid-template-columns: 1fr; }

  .hero__facts div {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    display: flex;
    align-items: baseline;
    gap: 0.85rem;
    padding-block: 0.95rem;
  }

  .hero__facts div:first-child { border-top: 0; }
  .hero__facts dt { margin-bottom: 0; }
}

/* ---------- Grilles reutilisables ---------- */

.grid-styles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: clamp(1rem, 2.2vw, 1.9rem);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.split--reverse { grid-template-columns: 1.1fr 0.9fr; }

@media (max-width: 860px) {
  .split,
  .split--reverse { grid-template-columns: 1fr; }
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 4vw, 3.5rem);
}

/* ---------- Pied de page ---------- */

.footer {
  background: var(--forest-2);
  color: var(--ivory);
  padding-block: clamp(3.25rem, 6vw, 5rem) 2.25rem;
}

.footer a {
  color: inherit;
  text-decoration-color: rgba(248, 243, 234, 0.35);
}

.footer a:hover { text-decoration-color: var(--honey); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: 2.75rem;
  border-bottom: 1px solid rgba(248, 243, 234, 0.16);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  line-height: 1.05;
  margin-bottom: 0.7rem;
}

.footer h4 {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--honey);
  margin-bottom: 1.1rem;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  font-size: 0.94rem;
}

.footer__note {
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.75rem;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(248, 243, 234, 0.6);
}

@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* ---------- Reveal au defilement ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}