/**
 * A2S — composants partagés (boutons, navbar, footer)
 */

/* ========== BOUTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast),
    border-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background-color: var(--color-orange);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-orange-dark);
  color: var(--color-white);
}

.btn--secondary {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.btn--secondary:hover {
  background-color: var(--color-teal-dark);
  color: var(--color-white);
}

.btn--ghost {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-white);
}

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

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background-color: transparent;
  transition: background-color var(--transition-base),
    backdrop-filter var(--transition-base),
    border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.navbar.is-scrolled {
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}

.navbar__brand {
  display: inline-flex;
  align-items: center;
}

.navbar__brand img {
  height: 36px;
  width: auto;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.navbar__link {
  position: relative;
  display: inline-block;
  padding-block: var(--space-2);
  color: var(--color-white);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.navbar__link::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background-color: var(--color-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.navbar__link:hover,
.navbar__link.is-active {
  color: var(--color-teal);
}

.navbar__link:hover::after,
.navbar__link.is-active::after {
  transform: scaleX(1);
}

.navbar__cta {
  white-space: nowrap;
}

.navbar__toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.navbar__toggle-bar,
.navbar__toggle-bar::before,
.navbar__toggle-bar::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--transition-fast),
    opacity var(--transition-fast);
}

.navbar__toggle-bar {
  position: relative;
}

.navbar__toggle-bar::before {
  position: absolute;
  top: -6px;
}

.navbar__toggle-bar::after {
  position: absolute;
  top: 6px;
}

.navbar.is-open .navbar__toggle-bar {
  background-color: transparent;
}

.navbar.is-open .navbar__toggle-bar::before {
  top: 0;
  transform: rotate(45deg);
}

.navbar.is-open .navbar__toggle-bar::after {
  top: 0;
  transform: rotate(-45deg);
}

@media (max-width: 900px) {
  .navbar__toggle {
    display: inline-flex;
  }

  .navbar__menu,
  .navbar__cta {
    display: none;
  }

  .navbar.is-open .navbar__menu {
    display: flex;
    position: absolute;
    inset: 100% var(--container-padding) auto var(--container-padding);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4);
    background-color: var(--color-bg-dark-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
  }

  .navbar.is-open .navbar__menu .navbar__link {
    padding-block: var(--space-3);
    border-bottom: 1px solid var(--color-border);
  }

  .navbar.is-open .navbar__menu li:last-child .navbar__link {
    border-bottom: none;
  }

  .navbar.is-open .navbar__cta {
    display: inline-flex;
    position: absolute;
    inset: auto var(--container-padding) calc(var(--space-4) * -1) auto;
    transform: translateY(100%);
  }
}

/* ========== FOOTER ========== */
.footer {
  background-color: #050505;
  color: var(--color-text-muted);
  padding-block: var(--space-16) var(--space-6);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand img {
  height: 48px;
  width: auto;
  margin-bottom: var(--space-4);
}

.footer__tagline {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-white);
  max-width: 22ch;
}

.footer__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__list a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}

.footer__list a:hover {
  color: var(--color-teal);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-white);
  text-decoration: none;
  transition: background-color var(--transition-fast),
    color var(--transition-fast), border-color var(--transition-fast);
}

.footer__social:hover {
  background-color: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
}

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

.footer__bottom a:hover {
  color: var(--color-teal);
}

@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}