/* ============================================================
   LAYOUT.CSS — Header, navigation, footer, hero
   ============================================================ */

/* ---- HEADER ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

/* État transparent au sommet de page */
.header--top {
  background: transparent;
}

/* État opaque lors du scroll */
.header--scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header__logo img {
  height: 38px;
  width: auto;
  transition: opacity var(--transition);
}

/* ---- NAVIGATION ---- */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding-block: var(--space-1);
  transition: color var(--transition);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: right var(--transition);
}

.nav__link:hover { color: var(--color-accent-dark); }
.nav__link:hover::after { right: 0; }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-6);
  background: var(--color-accent);
  color: var(--color-dark) !important;
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.nav__cta:hover {
  background: var(--color-accent-dark);
  box-shadow: var(--shadow-accent);
  transform: translateY(-1px);
}

.nav__cta::after { display: none; }

/* ---- BURGER MENU ---- */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  cursor: pointer;
}

.burger:hover { background: var(--color-surface); }

.burger__line {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition), width var(--transition);
}

.burger__line:nth-child(2) { width: 75%; }

.burger--open .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.burger--open .burger__line:nth-child(2) {
  opacity: 0;
  transform: translateX(-8px);
}
.burger--open .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- MOBILE NAV ---- */
.nav--mobile {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--color-bg);
  flex-direction: column;
  padding: var(--space-8) var(--space-6);
  gap: var(--space-6);
  z-index: 999;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--transition), transform var(--transition);
}

.nav--mobile.nav--open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.nav--mobile .nav__link {
  font-size: var(--fs-lg);
  font-weight: 600;
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.nav--mobile .nav__cta {
  align-self: flex-start;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-8);
  font-size: var(--fs-base);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(
      to right,
      rgba(255, 255, 255, 0.96) 0%,
      rgba(240, 249, 255, 0.88) 42%,
      rgba(224, 242, 254, 0.62) 100%
    ),
    url('../pictures/hero-bg.jpg');
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
}

/* Déco géométrique fond */
.hero__deco {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.hero__deco-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.18;
}

.hero__deco-blob--1 {
  width: 600px;
  height: 600px;
  background: var(--color-accent);
  top: -120px;
  right: -100px;
}

.hero__deco-blob--2 {
  width: 350px;
  height: 350px;
  background: var(--color-accent);
  bottom: 60px;
  left: -60px;
  opacity: 0.10;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: var(--space-16);
}

.hero__content { max-width: 560px; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  background: rgba(0,173,239,0.12);
  border: 1px solid rgba(0,173,239,0.3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(var(--fs-2xl), 4.5vw, var(--fs-4xl));
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-dark);
  margin-bottom: var(--space-6);
}

.hero__title span {
  color: var(--color-accent-dark);
  position: relative;
}

.hero__lead {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Illustration côté droit du hero */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__graphic {
  position: relative;
  width: 460px;
  height: 460px;
  max-width: 100%;
}

.hero__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(0,173,239,0.25);
  animation: spin 20s linear infinite;
}

.hero__ring--2 {
  inset: 30px;
  border-color: rgba(0,173,239,0.15);
  animation-duration: 30s;
  animation-direction: reverse;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hero__logo-wrap {
  position: absolute;
  inset: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
}

.hero__logo-wrap img {
  width: 100%;
  max-width: 240px;
}

/* Flèche scroll */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce 2.5s infinite;
}

.hero__scroll svg {
  opacity: 0.5;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ---- FOOTER ---- */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand-logo {
  height: 36px;
  margin-bottom: var(--space-4);
}

.footer__brand-desc {
  font-size: var(--fs-sm);
  line-height: 1.75;
  max-width: 300px;
  margin-bottom: var(--space-6);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.7);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.footer__social:hover {
  background: #00ADEF;
  color: #ffffff;
  transform: translateY(-2px);
}

.footer__col-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.footer__link:hover { color: var(--color-accent); }

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-xs);
}

.footer__legal-links {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

.footer__legal-link:hover { color: var(--color-accent); }

/* ---- PAGE INTERNE (mentions, politique) ---- */
.page-header {
  padding-top: calc(var(--header-h) + var(--space-12));
  padding-bottom: var(--space-12);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.page-header__breadcrumb {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.page-header__breadcrumb a {
  color: var(--color-accent-dark);
  transition: color var(--transition);
}

.page-header__breadcrumb a:hover { color: var(--color-dark); }

.page-header__title {
  font-size: clamp(var(--fs-xl), 3vw, var(--fs-3xl));
  font-weight: 800;
  color: var(--color-dark);
}

.page-content {
  padding-block: var(--space-16);
}

.prose {
  max-width: 780px;
}

.prose h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-dark);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid rgba(0,173,239,0.4);
}

.prose h3 {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--color-dark);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.prose p {
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.prose ul {
  list-style: disc;
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
}

.prose ul li {
  font-size: var(--fs-base);
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-2);
}

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose strong {
  font-weight: 600;
  color: var(--color-dark);
}

.info-box {
  background: rgba(0,173,239,0.08);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-6);
  margin-block: var(--space-6);
}

.info-box p { margin: 0; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .hero__graphic { width: 360px; height: 360px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .burger { display: flex; }

  .hero {
    background-image:
      linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.82) 0%,
        rgba(240, 249, 255, 0.90) 55%,
        rgba(255, 255, 255, 0.97) 100%
      ),
      url('../pictures/hero-bg.jpg');
    background-position: center top;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-block: var(--space-12);
  }

  .hero__content { max-width: 100%; }
  .hero__badge { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__graphic { width: 280px; height: 280px; }
  .hero__logo-wrap { inset: 28px; padding: var(--space-4); }
  .hero__scroll { display: none; }

  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }
  .footer__legal-links { justify-content: center; }
}

@media (max-width: 480px) {
  :root { --header-h: 64px; }
  .hero__graphic { width: 220px; height: 220px; }
  .hero__logo-wrap { inset: 22px; padding: var(--space-3); }
  .hero__title { font-size: var(--fs-2xl); }
}