/*
 * Komma Filament Navigator — sidebar & topbar skin.
 *
 * Every visual decision reads a --kn-* custom property with a neutral
 * fallback derived from the panel palette, so a host theme restyles the
 * whole chrome by redefining the tokens on :root (and .dark).
 */

:root {
    --kn-font: var(--font-family, inherit);
    --kn-mono: var(--mono-font-family, ui-monospace, monospace);

    --kn-bg: #ffffff;
    --kn-bg-elevated: color-mix(in srgb, var(--gray-50) 70%, #ffffff);
    --kn-fg: var(--gray-700);
    --kn-fg-strong: var(--gray-950);
    --kn-fg-muted: var(--gray-500);
    --kn-line: color-mix(in srgb, var(--gray-950) 8%, transparent);
    --kn-accent: var(--primary-600);
    --kn-accent-soft: color-mix(in srgb, var(--primary-500) 10%, transparent);
    --kn-hover: color-mix(in srgb, var(--gray-950) 5%, transparent);
    --kn-active-bg: color-mix(in srgb, var(--primary-500) 12%, transparent);
    --kn-active-fg: var(--gray-950);
    --kn-icon: var(--gray-400);
    --kn-icon-active: var(--primary-600);
    --kn-badge-bg: color-mix(in srgb, var(--primary-500) 16%, transparent);
    --kn-badge-fg: var(--primary-700);

    --kn-radius: 0.55rem;
    --kn-item-height: 2.35rem;
    --kn-group-gap: 1.1rem;
    --kn-label-size: 0.875rem;
    --kn-group-size: 0.66rem;
    --kn-group-tracking: 0.14em;
    --kn-marker-size: 0.9rem;
    --kn-pad-x: 0.9rem;
    --kn-items-gap: 0.1rem;
    --kn-item-icon-size: 1.35rem;
    --kn-group-icon-size: 1.15rem;
}

.dark {
    --kn-bg: var(--gray-900);
    --kn-bg-elevated: color-mix(in srgb, var(--gray-800) 60%, var(--gray-900));
    --kn-fg: color-mix(in srgb, var(--gray-200) 85%, transparent);
    --kn-fg-strong: #ffffff;
    --kn-fg-muted: var(--gray-500);
    --kn-line: color-mix(in srgb, #ffffff 8%, transparent);
    --kn-accent: var(--primary-400);
    --kn-accent-soft: color-mix(in srgb, var(--primary-400) 14%, transparent);
    --kn-hover: color-mix(in srgb, #ffffff 6%, transparent);
    --kn-active-bg: color-mix(in srgb, var(--primary-400) 16%, transparent);
    --kn-active-fg: #ffffff;
    --kn-icon: var(--gray-500);
    --kn-icon-active: var(--primary-400);
    --kn-badge-bg: color-mix(in srgb, var(--primary-400) 20%, transparent);
    --kn-badge-fg: var(--primary-200);
}

/* ── Appearance (icon sizes and density chosen on the settings page) ─ */

[data-kn-icon='sm'] { --kn-item-icon-size: 1.1rem; }
[data-kn-icon='md'] { --kn-item-icon-size: 1.35rem; }
[data-kn-icon='lg'] { --kn-item-icon-size: 1.6rem; }
[data-kn-icon='xl'] { --kn-item-icon-size: 1.9rem; }

[data-kn-group-icon='sm'] { --kn-group-icon-size: 0.95rem; --kn-marker-size: 0.85rem; }
[data-kn-group-icon='md'] { --kn-group-icon-size: 1.15rem; --kn-marker-size: 1rem; }
[data-kn-group-icon='lg'] { --kn-group-icon-size: 1.4rem; --kn-marker-size: 1.15rem; }
[data-kn-group-icon='xl'] { --kn-group-icon-size: 1.7rem; --kn-marker-size: 1.3rem; }

[data-kn-density='compact'] { --kn-item-height: 2rem; --kn-group-gap: 0.7rem; --kn-items-gap: 0; }
[data-kn-density='normal'] { --kn-item-height: 2.35rem; --kn-group-gap: 1.1rem; --kn-items-gap: 0.1rem; }
[data-kn-density='spacious'] { --kn-item-height: 2.8rem; --kn-group-gap: 1.5rem; --kn-items-gap: 0.25rem; }

/* ── Shell ─────────────────────────────────────────────────────────── */

.kn-sidebar {
    background: var(--kn-bg) !important;
    color: var(--kn-fg);
    font-family: var(--kn-font);
    border-inline-end: 1px solid var(--kn-line);
}

.kn-sidebar .kn-header {
    justify-content: flex-start;
    gap: 0.5rem;
    padding-inline: var(--kn-pad-x);
    background: transparent !important;
    box-shadow: none !important;
    --tw-ring-shadow: 0 0 #0000 !important;
}

.kn-brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.1rem;
    min-width: 0;
}

.kn-brand-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.kn-brand-tagline,
.kn-topbar-tagline {
    font-family: var(--kn-mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--kn-fg-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kn-collapse-btn {
    color: var(--kn-fg-muted);
}

.kn-header-controls {
    padding: 0 var(--kn-pad-x) 0.5rem;
}

/* ── Quick filter ──────────────────────────────────────────────────── */

.kn-filter {
    padding: 0.15rem var(--kn-pad-x) 0.75rem;
}

.kn-filter-field {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 2.1rem;
    padding-inline: 0.65rem;
    border-radius: var(--kn-radius);
    background: var(--kn-bg-elevated);
    border: 1px solid var(--kn-line);
    color: var(--kn-fg-muted);
    transition: border-color 0.12s ease;
}

.kn-filter-field:focus-within {
    border-color: color-mix(in srgb, var(--kn-accent) 55%, transparent);
    color: var(--kn-fg);
}

.kn-filter-icon {
    flex: none;
    width: 1rem;
    height: 1rem;
}

.kn-filter-input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: 0;
    outline: none;
    padding: 0;
    font: inherit;
    font-size: 0.8rem;
    color: var(--kn-fg-strong);
}

.kn-filter-input::placeholder {
    color: var(--kn-fg-muted);
}

.kn-filter-input::-webkit-search-cancel-button {
    -webkit-appearance: none;
}

.kn-filter-empty {
    display: none;
    margin: 0.75rem var(--kn-pad-x);
    font-size: 0.78rem;
    color: var(--kn-fg-muted);
}

.kn-filtering:not(:has(.kn-item:not([style*='display: none']))) .kn-filter-empty {
    display: block;
}

.kn-filtering .kn-group-head,
.kn-filtering .kn-group-rail-divider {
    display: none !important;
}

.kn-filtering .kn-items {
    display: flex !important;
    height: auto !important;
    overflow: visible !important;
}

.kn-filtering .kn-group:not(:has(.kn-item:not([style*='display: none']))) {
    display: none !important;
}

.kn-filtering .kn-groups {
    gap: var(--kn-items-gap);
}

/* ── Groups ────────────────────────────────────────────────────────── */

.kn-nav {
    padding: 0.25rem 0.5rem 1rem;
}

.kn-groups {
    display: flex;
    flex-direction: column;
    gap: var(--kn-group-gap);
    padding: 0;
    margin: 0;
    list-style: none;
}

.kn-group {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.kn-group-head {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem 0.5rem 0.35rem 0.6rem;
    user-select: none;
}

.kn-group-collapsible > .kn-group-head {
    cursor: pointer;
}

.kn-group-marker {
    font-family: var(--kn-mono);
    font-size: var(--kn-marker-size);
    line-height: 1;
    color: var(--kn-accent);
}

.kn-group-icon {
    flex: none;
    width: var(--kn-group-icon-size);
    height: var(--kn-group-icon-size);
    color: var(--kn-icon);
}

.kn-group-label {
    flex: 1;
    font-family: var(--kn-mono);
    font-size: var(--kn-group-size);
    letter-spacing: var(--kn-group-tracking);
    text-transform: uppercase;
    color: var(--kn-fg-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kn-group-active > .kn-group-head .kn-group-label {
    color: var(--kn-fg);
}

.kn-group-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 999px;
    color: var(--kn-fg-muted);
    background: transparent;
    border: 0;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.12s ease;
}

.kn-group-toggle:hover {
    background: var(--kn-hover);
}

.kn-group-toggle svg {
    width: 0.85rem;
    height: 0.85rem;
}

.kn-collapsed > .kn-group-head .kn-group-toggle {
    transform: rotate(180deg);
}

.kn-group-rail-divider {
    height: 1px;
    margin: 0.35rem 0.75rem;
    background: var(--kn-line);
}

.kn-group-unlabelled {
    gap: 0;
}

/* ── Items ─────────────────────────────────────────────────────────── */

.kn-items {
    display: flex;
    flex-direction: column;
    gap: var(--kn-items-gap);
    padding: 0;
    margin: 0;
    list-style: none;
}

.kn-items-nested {
    margin-inline-start: 1.15rem;
    padding-inline-start: 0.6rem;
    border-inline-start: 1px solid var(--kn-line);
    margin-top: 0.1rem;
}

.kn-item {
    position: relative;
    display: flex;
    flex-direction: column;
}

.kn-item-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    min-height: var(--kn-item-height);
    padding: 0.3rem 0.6rem;
    border-radius: var(--kn-radius);
    color: var(--kn-fg);
    font-size: var(--kn-label-size);
    line-height: 1.25;
    text-decoration: none;
    outline: none;
    transition: background 0.12s ease, color 0.12s ease;
}

.kn-item-link:hover,
.kn-item-link:focus-visible {
    background: var(--kn-hover);
    color: var(--kn-fg-strong);
}

.kn-item-link::before {
    content: '';
    position: absolute;
    inset-inline-start: -0.5rem;
    top: 22%;
    bottom: 22%;
    width: 3px;
    border-radius: 999px;
    background: var(--kn-accent);
    opacity: 0;
    transition: opacity 0.12s ease;
}

.kn-item-active > .kn-item-link {
    background: var(--kn-active-bg);
    color: var(--kn-active-fg);
    font-weight: 600;
}

.kn-item-active > .kn-item-link::before {
    opacity: 1;
}

.kn-item-parent-active > .kn-item-link {
    color: var(--kn-fg-strong);
}

.kn-item-icon {
    flex: none;
    width: var(--kn-item-icon-size);
    height: var(--kn-item-icon-size);
    color: var(--kn-icon);
    transition: color 0.12s ease;
}

.kn-item-link:hover .kn-item-icon,
.kn-item-active > .kn-item-link .kn-item-icon,
.kn-item-parent-active > .kn-item-link .kn-item-icon {
    color: var(--kn-icon-active);
}

.kn-item-icon svg,
.kn-group-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

img.kn-item-icon,
img.kn-group-icon {
    object-fit: contain;
    object-position: left center;
    border-radius: 0.25rem;
}

img.kn-item-icon {
    width: auto;
    min-width: var(--kn-item-icon-size);
    max-width: calc(var(--kn-item-icon-size) * 3);
    height: var(--kn-item-icon-size);
}

img.kn-group-icon {
    width: auto;
    min-width: var(--kn-group-icon-size);
    max-width: calc(var(--kn-group-icon-size) * 3);
    height: var(--kn-group-icon-size);
}

.kn-item-dot {
    flex: none;
    width: var(--kn-item-icon-size);
    height: var(--kn-item-icon-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.kn-item-dot::after {
    content: '';
    width: 0.35rem;
    height: 0.35rem;
    border-radius: 999px;
    background: var(--kn-icon);
}

.kn-item-active > .kn-item-link .kn-item-dot::after {
    background: var(--kn-icon-active);
}

.kn-item-child > .kn-item-link {
    min-height: calc(var(--kn-item-height) - 0.35rem);
    font-size: calc(var(--kn-label-size) - 0.05rem);
}

.kn-item-label {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kn-item-badge-ctn {
    flex: none;
    display: inline-flex;
}

.kn-item-badge-ctn .fi-badge {
    font-family: var(--kn-mono);
    font-size: 0.66rem;
    background: var(--kn-badge-bg);
    color: var(--kn-badge-fg);
    --tw-ring-shadow: 0 0 #0000;
}

/* ── Group style: how items hang from their group ──────────────── */

[data-kn-style='tree'] .kn-group:not(.kn-group-unlabelled) > .kn-items {
    margin-inline-start: calc(var(--kn-group-icon-size) / 2 + 0.6rem);
    padding-inline-start: 0.6rem;
    border-inline-start: 1px solid var(--kn-line);
}

[data-kn-style='tree'] .kn-group:not(.kn-group-unlabelled) > .kn-items > .kn-item > .kn-item-link::before {
    content: '';
    position: absolute;
    inset-inline-start: -0.65rem;
    top: 50%;
    width: 0.45rem;
    height: 1px;
    background: var(--kn-line);
}

[data-kn-style='tree'] .kn-group:not(.kn-group-unlabelled) > .kn-items > .kn-item-active > .kn-item-link::before {
    background: var(--kn-accent);
    height: 2px;
}

[data-kn-style='tree'] .kn-group-head {
    padding-inline-start: 0.5rem;
}

[data-kn-style='cards'] .kn-group:not(.kn-group-unlabelled) {
    padding: 0.2rem 0.35rem 0.45rem;
    border: 1px solid var(--kn-line);
    border-radius: calc(var(--kn-radius) + 0.25rem);
    background: color-mix(in srgb, var(--kn-fg) 2.5%, transparent);
}

[data-kn-style='cards'] .kn-group:not(.kn-group-unlabelled) > .kn-group-head {
    margin-bottom: 0.25rem;
    border-bottom: 1px solid var(--kn-line);
    border-radius: 0;
}

[data-kn-style='cards'] .kn-groups {
    gap: calc(var(--kn-group-gap) * 0.7);
}

.kn-sidebar:not(.fi-sidebar-open)[data-kn-style='tree'] .kn-group > .kn-items,
.kn-sidebar:not(.fi-sidebar-open)[data-kn-style='cards'] .kn-group {
    margin-inline-start: 0;
    padding: 0;
    border: 0;
    background: none;
}

.kn-sidebar:not(.fi-sidebar-open)[data-kn-style='tree'] .kn-item-link::before {
    display: none;
}

/* ── Top navigation (with the panel's topNavigation and the feature on) ── */

.kn-topnav {
    display: none;
    align-items: center;
    gap: 0.15rem;
    margin-inline-start: 1rem;
    list-style: none;
    padding: 0;
}

@media (min-width: 1024px) {
    .kn-topnav {
        display: flex;
    }
}

.kn-topnav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.7rem;
    border-radius: var(--kn-radius);
    font-size: var(--kn-label-size);
    font-weight: 500;
    color: var(--kn-fg);
    text-decoration: none;
    transition: background 0.12s ease, color 0.12s ease;
}

.kn-topnav-link:hover,
.kn-topnav-link.is-active {
    background: var(--kn-accent-soft);
    color: var(--kn-accent);
}

/* ── Favorites star ────────────────────────────────────────────── */

.kn-item-star {
    flex: none;
    display: inline-flex;
    width: 1.35rem;
    height: 1.35rem;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: var(--kn-fg-muted);
    opacity: 0;
    transition: opacity 0.12s ease, color 0.12s ease;
}

.kn-item-star svg {
    width: 0.9rem;
    height: 0.9rem;
}

.kn-item-link:hover .kn-item-star,
.kn-item-link:focus-within .kn-item-star,
.kn-item-star.is-on {
    opacity: 1;
}

.kn-item-star.is-on {
    color: var(--warning-500);
}

.kn-item-star:hover {
    background: var(--kn-accent-soft);
    color: var(--kn-accent);
}

.kn-group[data-kn-group='favorites'] > .kn-group-head .kn-group-icon {
    color: var(--warning-500);
}

/* ── Separators and headings inside a group ────────────────────── */

.kn-separator {
    list-style: none;
    margin: 0.35rem 0.6rem;
    border-top: 1px solid var(--kn-line);
}

.kn-heading {
    list-style: none;
    padding: 0.45rem 0.6rem 0.1rem;
    font-family: var(--kn-mono);
    font-size: calc(var(--kn-group-size) * 0.92);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--kn-fg-muted);
}

.kn-sidebar:not(.fi-sidebar-open) .kn-heading {
    display: none;
}

.kn-filtering .kn-separator,
.kn-filtering .kn-heading {
    display: none;
}

/* ── Symbol only (label kept for screen readers and the quick filter) ── */

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

.kn-group-symbol-only {
    position: relative;
}

.kn-group-symbol-only .kn-group-icon,
.kn-item-symbol-only .kn-item-icon {
    margin-inline-end: auto;
}

.kn-group-symbol-only img.kn-group-icon {
    max-width: calc(var(--kn-group-icon-size) * 4);
}

.kn-item-symbol-only img.kn-item-icon {
    max-width: calc(var(--kn-item-icon-size) * 4);
}

/* ── Rail (collapsed on desktop) ───────────────────────────────────── */

@media (min-width: 1024px) {
    .fi-body-has-sidebar-collapsible-on-desktop .kn-sidebar:not(.fi-sidebar-open) .kn-nav {
        padding-inline: 0.45rem;
    }

    .fi-body-has-sidebar-collapsible-on-desktop .kn-sidebar:not(.fi-sidebar-open) .kn-groups {
        gap: 0.35rem;
        width: auto;
    }

    .fi-body-has-sidebar-collapsible-on-desktop .kn-sidebar:not(.fi-sidebar-open) .kn-item-link {
        justify-content: center;
        padding: 0.45rem;
    }

    .fi-body-has-sidebar-collapsible-on-desktop .kn-sidebar:not(.fi-sidebar-open) .kn-item-link::before {
        inset-inline-start: -0.45rem;
    }

    .fi-body-has-sidebar-collapsible-on-desktop .kn-sidebar:not(.fi-sidebar-open) .kn-items-nested {
        display: none;
    }
}

/* ── Footer ────────────────────────────────────────────────────────── */

.kn-footer {
    border-top: 1px solid var(--kn-line);
    padding: 0.6rem var(--kn-pad-x);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

/* ── Topbar ────────────────────────────────────────────────────────── */

.kn-topbar-ctn .kn-topbar {
    background: var(--kn-bg) !important;
    border-bottom: 1px solid var(--kn-line);
    box-shadow: none !important;
    --tw-ring-shadow: 0 0 #0000 !important;
}

.kn-topbar-start {
    gap: 0.75rem;
}

.kn-topbar-brand {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    min-width: 0;
}

.kn-topbar-brand-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.kn-topbar-end {
    gap: 0.5rem;
}