/* ==========================================================================
   SebaGhar — Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-nav);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background-color: rgba(248, 250, 252, 0.55);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: height var(--duration-base) var(--ease-out),
    background-color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
  /* Entrance: slight downward reveal on load */
  animation: navReveal var(--duration-slow) var(--ease-out) both;
}

@keyframes navReveal {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.navbar.is-scrolled {
  height: var(--header-height-scrolled);
  background-color: rgba(248, 250, 252, 0.88);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

/* -- Brand -------------------------------------------------------------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  flex-shrink: 0;
}

.brand__mark svg {
  width: 20px;
  height: 20px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  color: var(--color-text);
  letter-spacing: var(--ls-tight);
}

.brand__parent {
  font-size: 0.65rem;
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* -- Trust badge --------------------------------------------------------- */
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--color-secondary-600);
  background-color: var(--color-secondary-100);
  border: 1px solid rgba(var(--color-secondary-rgb), 0.18);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.trust-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  flex-shrink: 0;
}

@media (max-width: 1023px) {
  .navbar .trust-badge {
    display: none;
  }
}

/* -- Desktop nav links --------------------------------------------------- */
.nav-links {
  display: none;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
  }

  .nav-links__link {
    position: relative;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text);
    padding-block: var(--space-2);
  }

  .nav-links__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-base) var(--ease-out);
  }

  .nav-links__link:hover::after,
  .nav-links__link:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
  }
}

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

.navbar__cta {
  display: none;
}

@media (min-width: 1024px) {
  .navbar__cta {
    display: inline-flex;
    padding: 0.65rem 1.375rem;
    min-height: 40px;
    font-size: var(--fs-sm);
  }
}

/* -- Hamburger ------------------------------------------------------------ */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle:hover {
  background-color: var(--color-surface-sunken);
}

.nav-toggle__bars {
  position: relative;
  width: 20px;
  height: 14px;
}

.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--color-text);
  transition: transform var(--duration-base) var(--ease-in-out),
    opacity var(--duration-base) var(--ease-in-out), top var(--duration-base) var(--ease-in-out);
}

.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 6px; }
.nav-toggle__bars span:nth-child(3) { top: 12px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

/* -- Mobile drawer ---------------------------------------------------------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-nav);
  visibility: hidden;
}

.mobile-nav__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(17, 24, 39, 0.4);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.mobile-nav__panel {
  position: absolute;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(85vw, 360px);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-out);
  overflow-y: auto;
}

.mobile-nav.is-open {
  visibility: visible;
}

.mobile-nav.is-open .mobile-nav__backdrop {
  opacity: 1;
}

.mobile-nav.is-open .mobile-nav__panel {
  transform: translateX(0);
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav__close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.mobile-nav__close:hover {
  background-color: var(--color-surface-sunken);
}

.mobile-nav__badge {
  align-self: flex-start;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav__link {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), padding-left var(--duration-fast) var(--ease-out);
}

.mobile-nav__link:hover,
.mobile-nav__link:focus-visible {
  background-color: var(--color-primary-50);
  color: var(--color-primary);
  padding-inline-start: var(--space-4);
}

.mobile-nav__footer {
  margin-top: auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
  .navbar {
    animation: none;
  }
}