/* ── Navbar ───────────────────────────────── */
:root {
    --navbar-height: 64px;
}

.navbar-yz {
    background: var(--color-surface);
    backdrop-filter: blur(10px) saturate(115%);
    border-bottom: 1px solid var(--color-border);
    min-height: var(--navbar-height);
    padding: 0;
    position: sticky;
    top: 0;
    transition: background-color 0.2s ease, border-color 0.2s ease, padding 0.2s ease;
    z-index: 100;
}

.navbar-yz .navbar-brand {
    display: inline-flex;
    align-items: center;
    color: var(--color-brand-strong);
    font-weight: 800;
}

.navbar-brand-logo {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.brand-logo--dark {
    display: none;
}

html[data-theme='dark'] .brand-logo--light {
    display: none;
}

html[data-theme='dark'] .brand-logo--dark {
    display: block;
}

.navbar-brand--primary {
    align-self: center;
    flex-direction: row;
    gap: 8px;
    line-height: 1;
    min-width: 0;
    position: relative;
    z-index: 2;
}

.navbar-brand-mark {
    align-items: center;
    display: inline-flex;
    height: 28px;
    justify-content: center;
    position: relative;
    width: 28px;
}

.navbar-brand--primary .navbar-brand-logo {
    height: 28px;
    position: relative;
    transition: transform 0.2s ease;
    width: 28px;
    z-index: 1;
}

.navbar-brand-name {
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.navbar-brand-name--short {
    display: none;
}

.navbar-brand--primary:hover .navbar-brand-logo,
.navbar-brand--primary:focus-visible .navbar-brand-logo {
    transform: translateY(-1px);
}

.navbar-brand--primary:hover .navbar-brand-name,
.navbar-brand--primary:focus-visible .navbar-brand-name {
    color: var(--color-brand-strong);
}

.navbar-yz .nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 7px 10px;
    position: relative;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s, color 0.2s, transform 0.2s;
    white-space: nowrap;
}

.navbar-inner,
.navbar-side,
.navbar-actions {
    min-width: 0;
}

.navbar-inner {
    align-items: center;
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    min-height: 63px;
    position: relative;
}

.navbar-side {
    align-items: center;
    display: flex;
    gap: 8px;
    width: 100%;
}

.navbar-side--left {
    grid-column: 1;
    justify-content: flex-start;
}

.navbar-side--right {
    grid-column: 3;
    justify-content: flex-end;
}

.navbar-actions,
.navbar-primary-nav {
    display: flex;
    align-items: center;
}

.navbar-primary-nav {
    gap: 2px;
}

.navbar-primary-nav--center {
    grid-column: 2;
    justify-self: center;
}

.navbar-task-menu {
    position: relative;
}

.navbar-yz .navbar-task-toggle {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 0;
    cursor: pointer;
    display: inline-flex;
    gap: 6px;
    justify-content: center;
    min-height: 44px;
}

.navbar-task-toggle > i {
    font-size: 0.68rem;
    transition: transform 0.2s ease;
}

.navbar-task-toggle[aria-expanded='true'] > i {
    transform: rotate(180deg);
}

.navbar-mega-menu {
    background: var(--color-surface-glass-strong);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    left: 0;
    min-width: 340px;
    opacity: 0;
    padding: 10px;
    pointer-events: none;
    position: absolute;
    top: calc(100% + 8px);
    transform: translateY(-4px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
    visibility: hidden;
}

.navbar-task-menu.is-open .navbar-mega-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
    visibility: visible;
}

.navbar-mega-menu__heading {
    border-bottom: 1px solid var(--color-border);
    margin: 0 4px 6px;
    padding: 6px 8px 10px;
}

.navbar-mega-menu__heading span,
.navbar-mega-menu__heading small,
.navbar-mega-link span,
.navbar-mega-link strong,
.navbar-mega-link small {
    display: block;
}

.navbar-mega-menu__heading span {
    color: var(--color-text);
    font-family: var(--font-family-heading);
    font-size: 1rem;
    font-weight: 700;
}

.navbar-mega-menu__heading small,
.navbar-mega-link small {
    color: var(--color-text-muted);
    font-size: 0.72rem;
    line-height: 1.4;
    margin-top: 2px;
}

.navbar-mega-menu__links {
    display: grid;
    gap: 2px;
}

.navbar-mega-link {
    align-items: center;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    display: grid;
    gap: 10px;
    grid-template-columns: 36px minmax(0, 1fr);
    min-height: 56px;
    padding: 8px 10px;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.navbar-mega-link > i {
    align-items: center;
    background: var(--color-brand-soft);
    border-radius: var(--radius-sm);
    color: var(--color-brand);
    display: inline-flex;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.navbar-mega-link strong {
    color: inherit;
    font-size: 0.84rem;
    line-height: 1.25;
}

.navbar-mega-link:hover,
.navbar-mega-link:focus-visible,
.navbar-mega-link.active {
    background: var(--color-brand-faint);
    color: var(--color-brand-strong);
}

.navbar-actions {
    gap: 10px;
}

.navbar-account-label {
    max-width: 112px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.navbar-yz .navbar-contribution-toggle,
.navbar-yz .navbar-account-toggle {
    align-items: center;
    appearance: none;
    cursor: pointer;
    display: inline-flex;
    font-family: inherit;
    justify-content: center;
}

.navbar-yz .navbar-contribution-toggle {
    background: transparent;
    border: 0;
    gap: 6px;
}

.navbar-yz .navbar-account-toggle {
    background: transparent;
    border: 0;
    border-radius: 0;
    gap: 7px;
    min-height: 40px;
    padding: 5px 4px;
}

.navbar-yz .navbar-account-toggle:hover,
.navbar-yz .navbar-account-toggle:focus-visible,
.navbar-yz .navbar-account-toggle[aria-expanded='true'] {
    background: transparent;
    color: var(--color-brand);
}

.navbar-yz .navbar-contribution-toggle[aria-expanded='true'] {
    background: transparent;
    color: var(--color-brand);
}

.navbar-account-icon {
    align-items: center;
    background: transparent;
    border-radius: 0;
    color: inherit;
    display: inline-flex;
    flex: 0 0 28px;
    height: 28px;
    justify-content: center;
    width: 28px;
}

.navbar-yz .nav-dropdown-menu {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: 10px !important;
    min-width: 232px;
    padding: 8px;
}

.navbar-yz .nav-dropdown-menu.show {
    animation: navbarDropdownReveal 0.18s cubic-bezier(0.22, 1, 0.36, 1);
}

.navbar-dropdown-heading {
    border-bottom: 1px solid var(--color-border);
    margin: 0 4px 6px;
    padding: 6px 8px 10px;
}

.navbar-dropdown-heading strong,
.navbar-dropdown-heading small,
.navbar-yz .nav-dropdown-menu .dropdown-item span,
.navbar-yz .nav-dropdown-menu .dropdown-item strong,
.navbar-yz .nav-dropdown-menu .dropdown-item small {
    display: block;
}

.navbar-dropdown-heading strong {
    color: var(--color-text);
    font-size: 0.82rem;
}

.navbar-dropdown-heading small,
.navbar-yz .nav-dropdown-menu .dropdown-item small {
    color: var(--color-text-muted);
    font-size: 0.7rem;
    line-height: 1.35;
    margin-top: 2px;
}

.navbar-yz .nav-dropdown-menu .dropdown-item {
    align-items: center;
    border-radius: var(--radius-md);
    display: flex;
    gap: 10px;
    min-height: 42px;
    padding: 8px 10px;
}

.navbar-yz .nav-dropdown-menu .dropdown-item > i {
    color: var(--color-brand);
    flex: 0 0 20px;
    font-size: 1rem;
    text-align: center;
}

.navbar-yz .nav-dropdown-menu .dropdown-item strong {
    color: inherit;
    font-size: 0.82rem;
    line-height: 1.25;
}

.navbar-yz .nav-dropdown-menu .dropdown-item.active {
    background: var(--color-brand-soft) !important;
    color: var(--color-brand-strong) !important;
}

.navbar-yz .nav-dropdown-menu .navbar-account-register {
    background: var(--color-brand-action) !important;
    color: var(--color-on-brand) !important;
    margin-top: 5px;
}

.navbar-yz .nav-dropdown-menu .navbar-account-register > i,
.navbar-yz .nav-dropdown-menu .navbar-account-register small {
    color: var(--color-on-brand) !important;
}

.navbar-yz .nav-dropdown-menu .navbar-account-register small {
    opacity: 0.8;
}

.navbar-yz .nav-dropdown-menu .navbar-account-register:hover,
.navbar-yz .nav-dropdown-menu .navbar-account-register:focus {
    background: var(--color-brand-action-hover) !important;
    color: var(--color-on-brand) !important;
}

.navbar-account-dropdown form,
.navbar-account-dropdown form .dropdown-item {
    width: 100%;
}

@keyframes navbarDropdownReveal {
    from {
        clip-path: inset(0 0 18% 0 round var(--radius-lg));
        filter: blur(3px);
        opacity: 0;
    }
    to {
        clip-path: inset(0 0 0 0 round var(--radius-lg));
        filter: blur(0);
        opacity: 1;
    }
}

.navbar-search-toggle {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 0;
    display: inline-flex;
    gap: 5px;
    height: 44px;
    padding: 0 !important;
    width: 44px;
}

.navbar-search-toggle > span {
    display: none;
}

.navbar-yz .navbar-search-toggle[aria-expanded='true'] {
    background: transparent;
    color: var(--color-brand);
}

.navbar-search-panel {
    background: var(--color-surface-glass-strong);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    left: 0;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    right: 0;
    top: 100%;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
    visibility: hidden;
}

.navbar-search-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
    visibility: visible;
}

.navbar-search-panel__inner {
    align-items: flex-start;
    display: flex;
    gap: 12px;
    margin: 0 auto;
    max-width: 760px;
    padding: 14px 0 16px;
}

.navbar-search-panel__form {
    flex: 1;
    min-width: 0;
}

.navbar-search-panel__label {
    color: var(--color-text);
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.search-box.navbar-search-panel__control {
    max-width: none;
    width: 100%;
}

.search-box.navbar-search-panel__control input {
    min-height: 44px;
}

.search-box.navbar-search-panel__control button {
    align-items: center;
    display: inline-flex;
    flex: 0 0 auto;
    gap: 6px;
    justify-content: center;
    min-height: 44px;
    min-width: 88px;
    padding: 0 18px;
}

.navbar-search-panel__hint {
    color: var(--color-text-muted);
    display: block;
    font-size: 0.75rem;
    line-height: 1.4;
    margin-top: 5px;
}

.navbar-search-panel__close {
    align-items: center;
    appearance: none;
    background: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: inline-flex;
    height: 44px;
    justify-content: center;
    margin-top: 23px;
    transition: background-color 0.2s, color 0.2s;
    width: 44px;
}

.navbar-search-panel__close:hover,
.navbar-search-panel__close:focus-visible {
    background: var(--color-brand-soft);
    color: var(--color-brand);
}

.navbar-mobile-toggle {
    display: none;
    justify-content: center;
    min-width: 44px;
}

.theme-toggle {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 0;
    border-radius: 0;
    color: var(--color-text-secondary);
    cursor: pointer;
    display: inline-flex;
    flex: 0 0 44px;
    height: 44px;
    justify-content: center;
    padding: 0;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
    width: 44px;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    background: transparent;
    color: var(--color-brand);
}

.theme-toggle:active {
    transform: scale(0.96);
}

.theme-toggle--compact {
    flex-basis: 40px;
    height: 40px;
    width: 40px;
}

.theme-toggle--floating {
    position: fixed;
    right: 20px;
    top: 20px;
    z-index: 20;
}

@media (min-width: 1400px) {
    .navbar-account-label {
        max-width: 144px;
    }
}

@media (min-width: 1200px) {
    .navbar-yz > .container {
        transition: background-color 0.2s ease, border-color 0.2s ease, border-radius 0.2s ease, box-shadow 0.2s ease, max-width 0.2s ease;
    }

    .navbar-yz.is-compact {
        background: transparent;
        border-bottom-color: transparent;
        min-height: 60px;
        padding: 6px 0 0;
    }

    .navbar-yz.is-compact > .container {
        background: var(--color-surface-glass-strong);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        max-width: 980px;
        padding-inline: 14px;
    }

    .navbar-yz.is-compact .navbar-inner {
        min-height: 52px;
    }

    .navbar-yz.is-compact .navbar-brand-mark,
    .navbar-yz.is-compact .navbar-brand--primary .navbar-brand-logo {
        height: 28px;
        width: 28px;
    }

    .navbar-yz.is-compact .navbar-brand-name--full {
        display: none;
    }

    .navbar-yz.is-compact .navbar-brand-name--short {
        display: inline;
    }

    .navbar-yz.is-compact .navbar-mega-menu {
        top: calc(100% + 10px);
    }
}

@media (min-width: 1200px) and (max-width: 1399px) {
    .navbar-side {
        gap: 4px;
    }

    .navbar-actions {
        gap: 6px;
    }

    .navbar-yz .nav-link {
        padding-left: 8px;
        padding-right: 8px;
    }

    .navbar-account-label {
        display: none;
    }

    .navbar-yz .navbar-account-toggle {
        gap: 4px;
        padding: 5px 7px 5px 5px;
    }
}

@media (max-width: 1199px) {
    :root {
        --navbar-height: 64px;
    }

    .navbar-yz {
        min-height: var(--navbar-height);
        padding: 0;
    }

    .navbar-inner {
        gap: 12px;
        grid-template-columns: minmax(0, 1fr) 44px;
        min-height: 63px;
    }

    .navbar-primary-nav--center,
    .navbar-side--right {
        display: none;
    }

    .navbar-side--left {
        display: flex;
        grid-column: 1;
    }

    .navbar-search-panel {
        display: none;
    }

    .navbar-brand--primary {
        min-width: 0;
    }

    .navbar-brand-mark,
    .navbar-brand--primary .navbar-brand-logo {
        height: 30px;
        width: 30px;
    }

    .navbar-brand-name {
        font-size: 0.82rem;
    }

    .navbar-brand-name--full {
        display: none;
    }

    .navbar-brand-name--short {
        display: inline;
    }

    .navbar-mobile-toggle {
        grid-column: 2;
        display: inline-flex;
        justify-self: end;
    }
}

.navbar-primary-nav--center .nav-link:hover,
.navbar-primary-nav--center .nav-link:focus-visible,
.navbar-primary-nav--center .nav-link.active {
    color: var(--color-brand);
    background: transparent;
}

.navbar-primary-nav .nav-link:hover,
.navbar-primary-nav .nav-link:focus-visible {
    transform: none;
}

.navbar-primary-nav .nav-link.active::after {
    content: none;
}

.search-box {
    background: var(--color-surface);
    border: 1px solid var(--color-control-border);
    border-radius: var(--radius-pill);
    overflow: hidden;
    display: flex;
    max-width: 320px;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--color-text);
    padding: 7px 14px;
    outline: none;
    font-size: 0.9rem;
    min-height: 40px;
    min-width: 0;
    width: 100%;
}

.search-box button {
    background: var(--color-brand-action);
    border: none;
    color: var(--color-on-brand);
    cursor: pointer;
    flex: 0 0 40px;
    min-height: 40px;
    min-width: 40px;
    padding: 0;
    transition: background 0.2s;
}

.search-box button:hover {
    background: var(--color-brand-action-hover);
}