/* ============================================================
   KLEIDER — NAVIGATION
   ============================================================ */

/* --- Site Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 1.5rem 0;
}

.site-header.is-transparent {
  background: transparent;
}

.site-header.is-scrolled {
  background: var(--ink);
  box-shadow: 0 2px 40px rgba(26,16,8,0.3);
  padding: 0.75rem 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* --- Logo --- */
.kleider-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  text-decoration: none;
}

.kleider-logo__eyebrow {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 3px;
  white-space: nowrap;
}

.kleider-logo__wordmark {
  display: flex;
  align-items: baseline;
  line-height: 1;
}

.kleider-logo__text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  color: var(--cream);
  line-height: 1;
}

.kleider-logo--dark .kleider-logo__text {
  color: var(--ink);
}

.kleider-logo__dot {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.65rem;
  color: var(--gold);
  line-height: 1;
}

/* --- Primary Nav --- */
.primary-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav ul li a {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cream);
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}

.primary-nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width var(--transition);
}

.primary-nav ul li a:hover,
.primary-nav ul li a:focus {
  color: var(--gold);
  opacity: 1;
}

.primary-nav ul li a:hover::after {
  width: 100%;
}

/* --- Nav CTA --- */
.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-cta .btn {
  padding: 0.65rem 1.4rem;
  font-size: 0.7rem;
}

/* --- Hamburger (mobile) --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--cream);
  transition: all var(--transition);
  transform-origin: center;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Mobile Nav --- */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(80vw, 360px);
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.77,0,0.175,1);
    z-index: 999;
    border-left: 1px solid rgba(201,134,10,0.15);
  }

  .primary-nav.is-open {
    transform: translateX(0);
    box-shadow: -20px 0 60px rgba(26,16,8,0.4);
  }

  .primary-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .primary-nav ul li a {
    font-size: 1rem;
    letter-spacing: 0.15em;
  }

  .nav-cta {
    margin-top: var(--space-md);
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  /* Overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26,16,8,0.6);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }

  .nav-overlay.is-visible {
    opacity: 1;
    pointer-events: all;
  }
}

/* --- Floating WhatsApp Button --- */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,211,102,0.5);
  opacity: 1;
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

@media (max-width: 640px) {
  .whatsapp-float {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 50px;
    height: 50px;
  }
  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}