/* ── Navigation component ────────────────────────────────────────────
 * Desktop glass nav, mobile bottom nav, theme toggle, skip-link, and
 * all sub-elements. Desktop nav hidden below 769px; bottom nav shown
 * only below 769px.
 */

/* ── Skip-to-content link ───────────────────────────────────────── */
.skip-link {
  position: fixed;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  background: var(--accent);
  color: var(--accent-on);
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius-sf) var(--radius-sf);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: top var(--motion-fast) var(--ease-out);
}
.skip-link:focus {
  top: 0;
}

/* ── Desktop glass nav ──────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: color-mix(in srgb, rgb(255,255,255) 75%, transparent);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid color-mix(in srgb, rgb(0,0,0) 8%, transparent);
  box-shadow: 0 4px 30px color-mix(in srgb, rgb(0,0,0) 3%, transparent);
  margin: 0 0 1.5rem 0;
  padding: 0.75rem 1.2rem;
  border-radius: 0;
}

[data-theme="dark"] .site-nav {
  background-color: color-mix(in srgb, rgb(20,20,20) 72%, transparent);
  border-bottom: 1px solid color-mix(in srgb, rgb(255,255,255) 8%, transparent);
  box-shadow: 0 4px 30px color-mix(in srgb, rgb(0,0,0) 20%, transparent);
}

.site-nav-main,
.site-nav > .site-nav-links {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.2rem;
  width: 100%;
}

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

.site-nav-links {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.site-nav-links span {
  color: var(--border);
  font-weight: 300;
  margin: 0 0.25rem;
}

.site-nav-links a:first-of-type {
  display: inline-flex;
  align-items: center;
  padding: 0;
}
.site-nav-links a:first-of-type:hover {
  transform: none;
  background-color: transparent;
  box-shadow: none;
}

/* Center the secondary nav links */
.site-nav > .site-nav-links {
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-nav a {
  text-decoration: none;
  font-weight: 500;
  transition: color var(--motion-fast) var(--ease-out);
  color: var(--text);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.site-nav a:hover {
  text-decoration: none;
  color: var(--accent);
  transform: translateY(-2px);
  background-color: color-mix(in srgb, rgb(0,0,0) 4%, transparent);
  box-shadow: 0 4px 8px color-mix(in srgb, rgb(0,0,0) 6%, transparent);
}

[data-theme="dark"] .site-nav a:hover {
  background-color: color-mix(in srgb, rgb(255,255,255) 5%, transparent);
  box-shadow: 0 4px 12px color-mix(in srgb, rgb(0,0,0) 25%, transparent);
}

.site-nav .button_to {
  display: inline;
  margin: 0;
}

.site-nav .button_to button {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: inherit;
  text-decoration: underline;
  cursor: pointer;
}

/* Override for sign in/out buttons */
.site-nav .button_to button {
  margin: 0;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  font: inherit;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--motion-fast) var(--ease-out);
}

.site-nav .button_to button:hover {
  background: var(--accent-bg);
  border-color: var(--text);
  text-decoration: none;
}

.site-nav-auth .button_to {
  display: inline-flex;
}

/* Backoffice sub-bar */
.site-nav-backoffice {
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px dashed color-mix(in srgb, rgb(0,0,0) 8%, transparent);
  font-size: 0.9rem;
  opacity: 0.9;
}

.site-nav-backoffice a {
  font-weight: 400;
  font-size: 0.85rem;
}

[data-theme="dark"] .site-nav-backoffice {
  border-top: 1px dashed color-mix(in srgb, rgb(255,255,255) 8%, transparent);
}

[data-theme="dark"] .site-nav-links span {
  color: color-mix(in srgb, rgb(255,255,255) 50%, transparent);
}

/* ── Theme toggle ───────────────────────────────────────────────── */
.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0;
  margin: 0.35rem 0 0;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-bg) 70%, transparent);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  overflow: hidden;
  transition:
    background-color var(--motion-fast) var(--ease-out),
    border-color var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out);
}

.theme-toggle:hover {
  border-color: var(--text);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle__option,
.theme-toggle__separator {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.5rem;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  transition:
    color var(--motion-fast) var(--ease-out),
    opacity var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out),
    background-color var(--motion-fast) var(--ease-out);
}

.theme-toggle__separator {
  min-width: 1rem;
  padding: 0;
  opacity: 0.65;
}

.theme-toggle[data-theme="light"] .theme-toggle__option--light,
.theme-toggle[data-theme="dark"] .theme-toggle__option--dark {
  background: var(--text);
  color: var(--background);
}

.theme-toggle[data-theme="light"] .theme-toggle__option--dark,
.theme-toggle[data-theme="dark"] .theme-toggle__option--light {
  opacity: 0.68;
}

.theme-toggle[data-theme="light"] .theme-toggle__option--light,
.theme-toggle[data-theme="dark"] .theme-toggle__option--dark {
  opacity: 1;
}

.theme-toggle:hover .theme-toggle__option--light,
.theme-toggle:hover .theme-toggle__option--dark {
  transform: translateY(-0.5px);
}

/* Desktop nav theme toggle */
.site-nav-auth {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
  flex-shrink: 0;
}

.site-nav-auth .theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition:
    border-color var(--motion-fast) var(--ease-out),
    background-color var(--motion-fast) var(--ease-out);
  line-height: 1;
}

.site-nav-auth .theme-toggle:hover {
  border-color: var(--text);
  background: var(--surface);
}

.site-nav-auth .theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.site-nav-auth .theme-toggle__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  transition:
    background-color var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out);
}

.site-nav-auth .theme-toggle[data-theme="light"] .theme-toggle__icon--light,
.site-nav-auth .theme-toggle[data-theme="dark"] .theme-toggle__icon--dark {
  background: var(--text);
  color: var(--bg);
}

.site-nav-auth .theme-toggle[data-theme="light"] .theme-toggle__icon--dark,
.site-nav-auth .theme-toggle[data-theme="dark"] .theme-toggle__icon--light {
  opacity: 0.5;
}

/* ── Mobile bottom nav ──────────────────────────────────────────── */
.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 0.25rem env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0)
    env(safe-area-inset-left, 0);
  justify-content: space-around;
  align-items: center;
  box-shadow: 0 -2px 12px color-mix(in srgb, rgb(0,0,0) 6%, transparent);
}

[data-theme="dark"] .bottom-nav {
  background: color-mix(in srgb, rgb(20,20,20) 95%, transparent);
  border-top-color: color-mix(in srgb, rgb(255,255,255) 8%, transparent);
}

.bottom-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.125rem;
  padding: 0.3rem 0.5rem;
  text-decoration: none;
  color: var(--muted);
  border-radius: 8px;
  transition: color var(--motion-fast) var(--ease-out);
  min-width: 3.5rem;
}

.bottom-nav__link:hover {
  color: var(--text);
  text-decoration: none;
}

.bottom-nav__link--active {
  color: var(--accent);
}

.bottom-nav__icon {
  width: 1.375rem;
  height: 1.375rem;
  display: block;
}

.bottom-nav__label {
  font-size: 0.65rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.01em;
}

/* ── PWA standalone mode ────────────────────────────────────────── */
@media all and (display-mode: standalone) {
  body {
    -webkit-user-select: none;
    user-select: none;
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .bottom-nav {
    padding-bottom: max(env(safe-area-inset-bottom, 0px), 0.5rem);
  }
  .site-nav,
  .bottom-nav {
    padding-top: env(safe-area-inset-top, 0px);
  }
}

/* ── Responsive: mobile vs desktop ──────────────────────────────── */
@media (max-width: 768px) {
  .site-nav {
    display: none;
  }
  .bottom-nav {
    display: flex;
  }
  main {
    padding-bottom: 5rem;
  }
  .site-nav-auth .theme-toggle {
    display: none;
  }
}

@media (min-width: 769px) {
  .bottom-nav {
    display: none;
  }
}