/* Navigation material and interaction tokens are scoped to this component. */
.main-navigation {
    color-scheme: light;
    --nav-material: rgba(250, 250, 252, .72);
    --nav-fallback: #f6f6f8;
    --nav-edge: rgba(24, 28, 36, .12);
    --nav-reflection: rgba(255, 255, 255, .70);
    --nav-shadow: rgba(20, 24, 32, .13);
    --nav-text: #505761;
    --nav-text-active: #20262e;
    --nav-active-fill: rgba(255, 255, 255, .66);
    --nav-active-edge: rgba(24, 28, 36, .10);
    --nav-hover-fill: rgba(24, 28, 36, .045);
    --nav-pressed: rgba(24, 28, 36, .09);
    --nav-focus: #315f91;
    --nav-danger: #a83232;
    --nav-radius: 16px;
    --nav-item-radius: 10px;
    --nav-duration: 220ms;
    --nav-ease: cubic-bezier(.2, .7, .2, 1);
    position: fixed;
    left: 50%;
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    transform: translateX(-50%);
    z-index: 9999;
    display: grid;
    /* Viis nuppu; keskmine (Rakendused) on pikema sildi tõttu veidi laiem */
    grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(0, 1.35fr) repeat(2, minmax(0, 1fr));
    gap: 4px;
    width: min(560px, calc(100% - 32px));
    box-sizing: border-box;
    padding: 6px;
    margin: 0;
    border: 1px solid var(--nav-edge);
    border-radius: var(--nav-radius);
    background: var(--nav-material);
    -webkit-backdrop-filter: blur(22px) saturate(125%);
    backdrop-filter: blur(22px) saturate(125%);
    box-shadow: inset 0 1px 0 var(--nav-reflection),
        0 2px 4px rgba(0, 0, 0, .025), 0 12px 32px -12px var(--nav-shadow);
    transition: background-color var(--nav-duration) ease,
        border-color var(--nav-duration) ease, box-shadow var(--nav-duration) ease;
}
:root[data-theme="dark"] .main-navigation {
    color-scheme: dark;
    --nav-material: rgba(27, 30, 35, .76);
    --nav-fallback: #1b1e23;
    --nav-edge: rgba(255, 255, 255, .12);
    --nav-reflection: rgba(255, 255, 255, .065);
    --nav-shadow: rgba(0, 0, 0, .42);
    --nav-text: #b8bec7;
    --nav-text-active: #f3f5f7;
    --nav-active-fill: rgba(255, 255, 255, .09);
    --nav-active-edge: rgba(255, 255, 255, .10);
    --nav-hover-fill: rgba(255, 255, 255, .045);
    --nav-pressed: rgba(255, 255, 255, .13);
    --nav-focus: #a5c8ee;
    --nav-danger: #ffaaa5;
}
.main-navigation .nav-btn {
    position: relative;
    z-index: 1;
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
    min-height: 48px;
    width: auto;
    padding: 10px 8px;
    margin: 0;
    appearance: none;
    opacity: 1;
    border: 1px solid transparent;
    border-radius: var(--nav-item-radius);
    background: transparent;
    box-shadow: none;
    color: var(--nav-text);
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: 0;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: color var(--nav-duration) ease, background-color var(--nav-duration) ease,
        border-color var(--nav-duration) ease, box-shadow var(--nav-duration) ease,
        transform var(--nav-duration) var(--nav-ease);
}
.main-navigation .nav-btn > svg,
.main-navigation .ico-wrap,
.main-navigation .ico-wrap > svg {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
}
.main-navigation .ico-wrap { display: inline-flex; align-items: center; justify-content: center; }
.main-navigation .nav-btn > svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.65;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.main-navigation .nav-btn > svg,
.main-navigation .ico-wrap { transition: transform var(--nav-duration) var(--nav-ease); }
.main-navigation .nav-btn.nav-active {
    color: var(--nav-text-active);
    background: var(--nav-active-fill);
    border-color: var(--nav-active-edge);
    box-shadow: inset 0 1px 0 var(--nav-reflection);
    font-weight: 600;
}
.main-navigation .nav-hover {
    position: absolute;
    z-index: 0;
    top: 6px;
    left: 6px;
    width: 0;
    height: calc(100% - 12px);
    border-radius: var(--nav-item-radius);
    background: var(--nav-hover-fill);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--nav-duration) var(--nav-ease),
        width var(--nav-duration) var(--nav-ease), opacity 180ms ease;
}
.main-navigation .nav-hover.is-on { opacity: 1; }
@media (hover: hover) and (pointer: fine) {
    .main-navigation .nav-btn:hover { color: var(--nav-text-active); }
    .main-navigation:not(.has-nav-hover) .nav-btn:not(.nav-active):hover { background: var(--nav-hover-fill); }
    .main-navigation .nav-btn:hover > svg,
    .main-navigation .nav-btn:hover .ico-wrap { transform: translateY(-1px); }
    .main-navigation .nav-btn-logout:hover { color: var(--nav-danger); }
}
.main-navigation .nav-btn:focus-visible {
    outline: 2px solid var(--nav-focus);
    outline-offset: -3px;
    color: var(--nav-text-active);
}
.main-navigation .nav-btn:active { transform: translateY(1px); background: var(--nav-pressed); }
/* Preserve the existing sun/moon animation and theme labels. */
.main-navigation .tt .tt-disc,
.main-navigation .tt .tt-hole,
.main-navigation .tt .tt-rays,
.main-navigation .tt .tt-rays line {
    transition-duration: var(--nav-duration);
    transition-delay: 0s;
    transition-timing-function: var(--nav-ease);
}
/* Kitsal ekraanil ikoon sildi kohal. Murdepunkt 600px (enne 480px): viis nuppu
   mahuvad reas kõrvuti alles siis, kui nav on üle ~500px lai. */
@media (max-width: 600px) {
    .main-navigation {
        bottom: calc(12px + env(safe-area-inset-bottom, 0px));
        width: min(400px, calc(100% - 24px));
        grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
        gap: 3px;
    }
    .main-navigation .nav-btn {
        flex-direction: column;
        gap: 5px;
        min-height: 58px;
        padding: 8px 4px;
        font-size: 11px;
    }
    .main-navigation .nav-btn > span:not(.ico-wrap) { max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
}
/* 320–360px: väiksem vahe ja sisetäide, et "Avaleht" ja "Rakendused" mahuksid tervena */
@media (max-width: 360px) {
    .main-navigation {
        grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(0, 1.45fr) repeat(2, minmax(0, 1fr));
        gap: 2px;
    }
    .main-navigation .nav-btn { padding: 8px 2px; }
}
/* ─── Rakenduste vahetaja ───
   Hüpikloend avaneb navi kohale (nav on ekraani all). Sees on päris pind, mitte klaas:
   pesastatud backdrop-filter ei hägustaks lehte. Värvid tulevad teema-tokenitest. */
.main-navigation .nav-btn-apps[aria-expanded="true"] {
    color: var(--nav-text-active);
    background: var(--nav-active-fill);
    border-color: var(--nav-active-edge);
    box-shadow: inset 0 1px 0 var(--nav-reflection);
}
.main-navigation .nav-apps {
    position: absolute;
    z-index: 2;
    left: 50%;
    bottom: calc(100% + 10px);
    transform: translateX(-50%);
    width: min(340px, 100%);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    box-sizing: border-box;
    padding: 6px;
    border: 1px solid var(--panel-edge);
    border-radius: var(--nav-radius);
    background: var(--surface-elev);
    box-shadow: var(--panel-shadow);
    color: var(--ink);
    text-align: left;
    animation: nav-apps-in 180ms var(--nav-ease);
}
.main-navigation .nav-apps[hidden] { display: none; }
@keyframes nav-apps-in {
    from { opacity: 0; transform: translate(-50%, 6px); }
}
.main-navigation .nav-apps-head {
    padding: 8px 10px 6px;
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}
.main-navigation .nav-apps-list { list-style: none; margin: 0; padding: 0; }
.main-navigation .nav-app {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    padding: 8px 10px;
    border-radius: var(--nav-item-radius);
    color: var(--ink);
    font-size: 0.875rem;
    text-decoration: none;
    transition: background-color var(--nav-duration) ease;
}
.main-navigation a.nav-app:hover { background: var(--fill); color: var(--ink); }
.main-navigation a.nav-app:focus-visible { outline: 2px solid var(--nav-focus); outline-offset: -2px; }
.main-navigation .nav-app-mark {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: var(--fill);
    color: var(--ink-2);
    font-size: 0.8125rem;
    font-weight: 600;
}
.main-navigation .nav-app.is-current .nav-app-mark { background: var(--ink); color: var(--on-ink); }
.main-navigation .nav-app-txt { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.main-navigation .nav-app-txt b { font-size: 0.875rem; font-weight: 600; line-height: 1.2; color: var(--ink); }
.main-navigation .nav-app-txt small { font-size: 0.75rem; line-height: 1.3; color: var(--muted); }
.main-navigation .nav-app-here {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    padding: 3px 8px;
    border-radius: 999px;
    background: var(--fill);
    color: var(--ink-3);
    font-size: 0.6875rem;
    font-weight: 600;
    white-space: nowrap;
}
.main-navigation .nav-app-here i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); }
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .main-navigation { background: var(--nav-fallback); }
}
@media (prefers-reduced-transparency: reduce) {
    .main-navigation { background: var(--nav-fallback); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (prefers-reduced-motion: reduce) {
    .main-navigation, .main-navigation *, .main-navigation *::before, .main-navigation *::after {
        transition: none !important;
        animation: none !important;
    }
    .main-navigation .nav-btn:active,
    .main-navigation .nav-btn:hover > svg,
    .main-navigation .nav-btn:hover .ico-wrap { transform: none; }
}
@media (forced-colors: active) {
    .main-navigation { background: Canvas; border-color: CanvasText; box-shadow: none; }
    .main-navigation .nav-btn.nav-active { border-color: Highlight; }
    .main-navigation .nav-btn:focus-visible { outline-color: Highlight; }
    .main-navigation .nav-apps { border-color: CanvasText; }
    .main-navigation .nav-app.is-current { outline: 1px solid Highlight; }
}