/* Reusable chrome: header, buttons, cards, footer. */

/* --- buttons -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  transition:
    transform var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo),
    background-color var(--duration-fast) ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--c-yellow);
  color: hsl(var(--primary-foreground));
  box-shadow: 0 0 0 hsl(var(--neon-yellow) / 0);
}

.btn--primary:hover {
  box-shadow: 0 0 28px hsl(var(--neon-yellow) / 0.45);
}

.btn--lg {
  padding: 1rem 2.75rem;
  font-size: 1.35rem;
}

.btn--ghost {
  border: 1px solid var(--c-border);
  color: var(--c-fg);
}

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

.btn--whatsapp {
  background: var(--c-green);
  color: hsl(0 0% 5%);
}

.btn--whatsapp:hover {
  box-shadow: 0 0 28px hsl(var(--neon-green) / 0.45);
}

.btn--block {
  width: 100%;
}

/* --- header --------------------------------------------------------------- */

.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: hsl(var(--background) / 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid hsl(var(--border) / 0.6);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header__logo {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  object-fit: contain;
}

.header__wordmark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: var(--tracking-display);
  color: var(--c-yellow);
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav__link {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--c-fg);
  transition: color var(--duration-fast) ease, background-color var(--duration-fast) ease;
}

.nav__link:hover {
  color: var(--c-yellow);
}

.nav__link--active {
  background: var(--c-yellow);
  color: hsl(var(--primary-foreground));
}

.nav__link--active:hover {
  color: hsl(var(--primary-foreground));
}

.header__cta {
  flex-shrink: 0;
  padding: 0.55rem 1.15rem;
  font-size: 0.95rem;
}

/* --- mobile nav ----------------------------------------------------------- */

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--c-yellow);
}

.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--duration-normal) var(--ease-out-expo),
    opacity var(--duration-fast) ease;
}

.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
}

.nav-toggle__bar::before { transform: translateY(-7px); }
.nav-toggle__bar::after  { transform: translateY(7px); }

.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after  { transform: rotate(-45deg); }

@media (max-width: 1100px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header__cta {
    display: none;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem var(--gutter) 2rem;
    background: hsl(var(--background) / 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    transform: translate3d(0, -8px, 0);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--duration-normal) var(--ease-out-expo),
      transform var(--duration-normal) var(--ease-out-expo),
      visibility var(--duration-normal);
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    padding: 0.9rem 0.5rem;
    font-size: 1.25rem;
    border-bottom: 1px solid hsl(var(--border) / 0.5);
  }

  .nav__cta {
    margin-top: 1.25rem;
  }
}

@media (min-width: 1101px) {
  .nav__cta {
    display: none;
  }
}

/* --- cards ---------------------------------------------------------------- */

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: var(--c-card);
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) ease,
    box-shadow var(--duration-normal) var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-6px);
}

.card--yellow:hover { border-color: var(--c-yellow); box-shadow: 0 12px 40px hsl(var(--neon-yellow) / 0.18); }
.card--pink:hover   { border-color: var(--c-pink);   box-shadow: 0 12px 40px hsl(var(--neon-pink) / 0.18); }
.card--green:hover  { border-color: var(--c-green);  box-shadow: 0 12px 40px hsl(var(--neon-green) / 0.18); }

.card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: hsl(var(--muted));
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.card:hover .card__media img {
  transform: scale(1.06);
}

.card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, hsl(var(--background) / 0.92), transparent 60%);
}

.card__body {
  position: relative;
  padding: 1.1rem 1.25rem 1.35rem;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
}

.card__text {
  margin-top: 0.35rem;
  font-size: var(--text-sm);
  color: var(--c-muted-fg);
}

/* --- footer --------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--c-border);
  padding-block: 2.5rem;
  text-align: center;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.footer__logo {
  width: 2.5rem;
  height: 2.5rem;
}

.footer__wordmark {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: var(--tracking-display);
  color: var(--c-yellow);
}

.footer__note {
  font-size: var(--text-sm);
  color: var(--c-muted-fg);
}

/* --- back link (sub-pages) ------------------------------------------------ */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: calc(var(--header-h) + 1.5rem);
  font-family: var(--font-display);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--c-muted-fg);
  transition: color var(--duration-fast) ease, gap var(--duration-fast) ease;
}

.back-link:hover {
  color: var(--c-yellow);
  gap: 0.85rem;
}