.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.header-hamburger-btn:focus-visible,
.auth-menu-wrap :focus-visible,
.nav-drawer :focus-visible {
  outline: 2px solid var(--primary, #2563eb);
  outline-offset: 2px;
}

.header-search-wrap { position: relative; }

.ss-form { position: relative; }
.header-search-top .ss-form { flex: 1 1 auto; min-width: 0; }
.ss-box {
  display: flex; align-items: center; gap: 8px; background: #fff;
  border: 1.5px solid var(--border, #e2e8f0); border-radius: var(--radius-full, 999px);
  padding: 5px 6px 5px 8px; transition: var(--transition, all .2s ease);
}
.ss-box:focus-within { border-color: var(--primary, #2563eb); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12); }
.hs-submit {
  flex: 0 0 auto; display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%; color: var(--text-subtle, #94a3b8); font-size: 1.15rem;
}
.ss-box:focus-within .hs-submit { color: var(--primary, #2563eb); }
.ss-box input[type="search"] {
  flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; font: inherit;
  font-size: 16px; color: var(--text-main, #0f172a); padding: 10px 0;
  -webkit-appearance: none; appearance: none;
}
.ss-box input[type="search"]::-webkit-search-cancel-button,
.ss-box input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; display: none; }
.ss-box input::placeholder { color: var(--text-subtle, #94a3b8); }
.ss-clear { flex: 0 0 auto; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; color: var(--text-subtle, #94a3b8); font-size: 1.15rem; }
.ss-clear:hover { color: var(--text-main, #0f172a); background: #f1f5f9; }

.header-search-panel {
  background: #fff; opacity: 0; visibility: hidden; pointer-events: none;
}
.header-search-panel.open { opacity: 1; visibility: visible; pointer-events: auto; }
.header-search-top { display: flex; align-items: center; gap: 8px; }
.header-search-close {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%; background: #f1f5f9;
  display: flex; align-items: center; justify-content: center; color: var(--text-main, #0f172a); font-size: 1.1rem;
}
.header-search-close:active { transform: scale(0.92); }

.header-search-panel .ss-panel {
  position: static; margin-top: 10px; border: none; box-shadow: none; animation: none; background: transparent;
}
.header-search-panel .ss-panel[hidden] { display: none !important; }
.header-search-panel .ss-scroll { padding: 2px 0; max-height: min(50vh, 340px); }

@media (min-width: 768px) {
  .header-search-panel {
    position: absolute; top: calc(100% + 10px); right: 0; width: 340px;
    border: 1px solid var(--border, #e2e8f0); border-radius: var(--radius-md, 14px);
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.14); padding: 14px; z-index: 1200;
    transform: translateY(-6px);
    transition: opacity .16s ease, transform .16s ease, visibility .16s;
  }
  .header-search-panel.open { transform: translateY(0); }
  .header-search-close { display: none; }
}

@media (max-width: 767px) {

  .header-search-panel {
    position: fixed; inset: 0; z-index: 4200;
    display: flex; flex-direction: column;
    padding: calc(14px + env(safe-area-inset-top)) 14px calc(14px + env(safe-area-inset-bottom));
    transform: translateY(14px);
    transition: opacity .2s ease, transform .2s cubic-bezier(.22, .9, .35, 1), visibility .2s;
  }
  .header-search-panel.open { transform: translateY(0); }

  .header-search-top { flex: 1; min-height: 0; align-items: stretch; }
  .header-search-panel .ss-form {
    flex: 1 1 auto; min-width: 0; min-height: 0;
    display: flex; flex-direction: column;
  }
  .header-search-panel .ss-box { flex: 0 0 auto; }

  .header-search-panel .ss-panel {
    flex: 1; min-height: 0; display: flex; flex-direction: column; margin-top: 14px;
  }
  .header-search-panel .ss-scroll { flex: 1; min-height: 0; max-height: none; }
  .header-search-panel .ss-panel[hidden] { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .header-search-panel { transition: none !important; }
}

.header-hamburger-btn {
  width: 36px; height: 36px; border-radius: 50%; background: #f1f5f9;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-main, #0f172a); font-size: 1.15rem;
  transition: var(--transition, all .2s ease); flex-shrink: 0;
}
.header-hamburger-btn:active { transform: scale(0.92); }
@media (min-width: 768px) { .header-hamburger-btn { display: none; } }

@media (max-width: 767px) {
  .auth-menu-wrap, .user-avatar-wrap, #headerLogoutForm { display: none !important; }
}

.auth-menu-wrap { position: relative; }

.btn-auth-header {
  display: flex; align-items: center; gap: 6px; height: 38px; padding: 0 16px;
  border-radius: 999px; background: var(--primary, #2563eb); color: #fff;
  font-size: 0.82rem; font-weight: 700; white-space: nowrap; border: none; cursor: pointer;
  transition: var(--transition, all .2s ease);
}
.btn-auth-header:hover { background: var(--primary-hover, #1d4ed8); }
.btn-auth-header .auth-divider { opacity: .55; font-weight: 400; }
.btn-auth-header i { font-size: 1rem; transition: transform .18s ease; }
.auth-menu-wrap.open .btn-auth-header i { transform: rotate(180deg); }

.auth-menu-panel {
  position: absolute; top: calc(100% + 10px); right: 0; width: 264px;
  background: #fff; border: 1px solid var(--border, #e2e8f0); border-radius: var(--radius-md, 14px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.14); padding: 6px; z-index: 1200;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.auth-menu-wrap.open .auth-menu-panel { opacity: 1; visibility: visible; transform: translateY(0); }

.auth-menu-item { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 10px; }
.auth-menu-item:hover { background: var(--primary-light, #eff6ff); }
.auth-menu-icon {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  background: var(--primary-light, #eff6ff); color: var(--primary, #2563eb);
  display: flex; align-items: center; justify-content: center; font-size: 1.05rem;
}
.auth-menu-item strong { display: block; font-size: 0.86rem; font-weight: 700; color: var(--text-main, #0f172a); }
.auth-menu-item small { display: block; font-size: 0.72rem; color: var(--text-muted, #64748b); font-weight: 500; }

.nav-drawer-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45); z-index: 3990;
  opacity: 0; transition: opacity .22s ease;
}
.nav-drawer-backdrop.show { opacity: 1; }

.nav-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 82%; max-width: 320px;
  background: #fff; z-index: 4000; display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .26s cubic-bezier(.22, .9, .35, 1), visibility 0s linear .26s;
  box-shadow: -8px 0 32px rgba(15, 23, 42, 0.14);
  visibility: hidden;
}
.nav-drawer.open { transform: translateX(0); visibility: visible; transition: transform .26s cubic-bezier(.22, .9, .35, 1), visibility 0s; }
@media (min-width: 768px) { .nav-drawer, .nav-drawer-backdrop { display: none !important; } }

.nav-drawer-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border, #e2e8f0); flex-shrink: 0;
}
.nav-drawer-title { font-size: 0.95rem; font-weight: 800; color: var(--text-main, #0f172a); }
.nav-drawer-close {
  width: 34px; height: 34px; border-radius: 50%; background: #f1f5f9;
  display: flex; align-items: center; justify-content: center; font-size: 1.15rem; color: var(--text-main, #0f172a);
}
.nav-drawer-close:active { transform: scale(0.92); }

.nav-drawer-user {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  border-bottom: 1px solid var(--border, #e2e8f0); flex-shrink: 0;
}
.nav-drawer-user img { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; border: 1.5px solid var(--primary, #2563eb); }
.nav-drawer-user strong { display: block; font-size: 0.9rem; font-weight: 700; color: var(--text-main, #0f172a); }
.nav-drawer-user small { display: block; font-size: 0.74rem; color: var(--text-muted, #64748b); text-transform: capitalize; }

.nav-drawer-menu { flex: 1; overflow-y: auto; padding: 10px 10px 4px; }
.nav-drawer-item {
  display: block; padding: 12px; border-radius: 10px; font-size: 0.9rem; font-weight: 600;
  color: var(--text-main, #0f172a); margin-bottom: 2px;
}
.nav-drawer-item.active { background: var(--primary-light, #eff6ff); color: var(--primary, #2563eb); font-weight: 700; }

.nav-drawer-bottom {
  padding: 14px 16px calc(16px + env(safe-area-inset-bottom)); border-top: 1px solid var(--border, #e2e8f0); flex-shrink: 0;
}
.nav-drawer-cta {
  display: flex; align-items: center; justify-content: center; gap: 8px; height: 46px;
  border-radius: 12px; background: var(--primary, #2563eb); color: #fff; font-size: 0.88rem; font-weight: 700;
}
.nav-drawer-cta i { font-size: 1.05rem; }
.nav-drawer-cta:active { transform: scale(0.98); }

.nav-drawer-signin-label {
  text-align: center; font-size: 0.68rem; font-weight: 700; letter-spacing: .04em;
  color: var(--text-muted, #64748b); text-transform: uppercase; margin: 14px 0 8px;
}
.nav-drawer-role-row { display: flex; gap: 8px; }
.nav-drawer-role-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  height: 58px; border-radius: 12px; border: 1px solid var(--border, #e2e8f0);
  font-size: 0.74rem; font-weight: 700; color: var(--text-main, #0f172a);
}
.nav-drawer-role-btn:active { transform: scale(0.97); background: var(--primary-light, #eff6ff); }
.nav-drawer-role-btn i { font-size: 1.1rem; color: var(--primary, #2563eb); }

.nav-drawer-logout {
  width: 100%; margin-top: 8px; height: 44px; border-radius: 12px; border: 1px solid var(--border, #e2e8f0);
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 0.85rem; font-weight: 700; color: var(--accent-red, #ef4444); background: #fff;
}
.nav-drawer-logout:active { transform: scale(0.98); }

@media (prefers-reduced-motion: reduce) {
  .nav-drawer, .nav-drawer-backdrop, .auth-menu-panel, .btn-auth-header i { transition: none !important; }
}

.btn-auth-header.auth-simple { display: inline-flex; align-items: center; gap: 8px; }
.btn-auth-header.auth-simple a { color: inherit; text-decoration: none; font-weight: inherit; padding: 6px 2px; }
.btn-auth-header.auth-simple a:hover { text-decoration: underline; text-underline-offset: 3px; }