/* ============================================================================
   VAR Copilot — shared global navigation chrome (nav.css)
   One stylesheet for every authenticated page. All selectors are namespaced
   under #var-nav / .vn-* so nothing leaks into a page's own styles.

   Design language: the app's existing monospace HUD (near-black, acid green,
   amber). Signature: the ACTIVE section is "framed" like the VAR on-field-
   review monitor the referee draws in the air, with an on-air tally accent.
   Acting-as-a-client tints the whole bar amber — impossible to miss.
   ========================================================================== */

#var-nav {
    /* Inherit the host page's theme tokens, with HUD fallbacks so the bar is
       correct even on a page that never defined them. */
    --vn-surface: var(--surface, #141414);
    --vn-bg:      var(--bg, #0a0a0a);
    --vn-hair:    var(--border, #222);
    --vn-text:    var(--text, #f0f0f0);
    --vn-dim:     var(--text-dim, #8a8a8a);
    --vn-green:   var(--green, #00e676);
    --vn-amber:   var(--amber, #ffab00);
    --vn-danger:  #ff5252;
    --vn-h: 52px;

    position: sticky;
    top: 0;
    z-index: 900;
    font-family: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
    -webkit-font-smoothing: antialiased;
}
#var-nav *,
#var-nav *::before,
#var-nav *::after { box-sizing: border-box; }

/* ---- primary bar ---------------------------------------------------------- */
.vn-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    height: var(--vn-h);
    padding: 0 14px;
    background: var(--vn-surface);
    border-bottom: 1px solid var(--vn-hair);
}
@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .vn-bar {
        background: color-mix(in srgb, var(--vn-surface) 78%, transparent);
        -webkit-backdrop-filter: blur(16px) saturate(1.3);
        backdrop-filter: blur(16px) saturate(1.3);
    }
}

/* brand ----------------------------------------------------------------------*/
.vn-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    text-decoration: none;
    color: var(--vn-text);
    padding-right: 12px;
    margin-right: 4px;
    border-right: 1px solid var(--vn-hair);
    white-space: nowrap;
}
.vn-brand .vn-mark {
    width: 12px; height: 12px;
    background: var(--vn-green);
    box-shadow: 0 0 10px -1px var(--vn-green);
    flex: none;
}
.vn-brand .vn-wordmark {
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.vn-brand .vn-wordmark b { color: var(--vn-green); font-weight: 700; }
@media (max-width: 900px) { .vn-brand .vn-wordmark { display: none; } }

/* primary links --------------------------------------------------------------*/
.vn-links { display: flex; align-items: center; gap: 2px; min-width: 0; }
.vn-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--vn-dim);
    text-decoration: none;
    font-size: 12.5px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
    transition: color .13s ease, background .13s ease, border-color .13s ease;
}
.vn-link .vn-ico { width: 16px; height: 16px; flex: none; opacity: .85; }
.vn-link:hover { color: var(--vn-text); background: color-mix(in srgb, var(--vn-text) 7%, transparent); }
.vn-link:focus-visible { outline: 2px solid var(--vn-green); outline-offset: 1px; }

/* SIGNATURE — the active section is framed like the VAR review monitor, with a
   green "on-air" tally along the top edge. */
.vn-link.vn-active {
    color: var(--vn-green);
    border-color: color-mix(in srgb, var(--vn-green) 55%, transparent);
    background: color-mix(in srgb, var(--vn-green) 9%, transparent);
}
.vn-link.vn-active .vn-ico { opacity: 1; }
.vn-link.vn-active::before {
    content: "";
    position: absolute;
    left: 6px; right: 6px; top: -1px;
    height: 2px;
    background: var(--vn-green);
    box-shadow: 0 0 8px -1px var(--vn-green);
}

/* ---- right cluster (sysadmin widgets + user) ------------------------------ */
.vn-spacer { flex: 1 1 auto; }
.vn-right { display: flex; align-items: center; gap: 6px; }

.vn-widget {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 10px;
    background: transparent;
    border: 1px solid var(--vn-hair);
    border-radius: 2px;
    color: var(--vn-dim);
    font-family: inherit;
    font-size: 12px;
    letter-spacing: .02em;
    cursor: pointer;
    white-space: nowrap;
    transition: color .13s, border-color .13s, background .13s;
}
.vn-widget:hover { color: var(--vn-text); border-color: color-mix(in srgb, var(--vn-text) 30%, transparent); }
.vn-widget:focus-visible { outline: 2px solid var(--vn-green); outline-offset: 1px; }
.vn-widget b { color: var(--vn-text); font-weight: 600; }

/* status dot */
.vn-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--vn-dim); flex: none; }
.vn-dot.ok    { background: var(--vn-green); box-shadow: 0 0 7px -1px var(--vn-green); }
.vn-dot.warn  { background: var(--vn-amber); box-shadow: 0 0 7px -1px var(--vn-amber); }
.vn-dot.down  { background: var(--vn-danger); box-shadow: 0 0 7px -1px var(--vn-danger); animation: vn-pulse 1.1s ease-in-out infinite; }
.vn-live { color: var(--vn-green); }

/* usage-over-budget flag */
.vn-widget.vn-over { color: var(--vn-amber); border-color: color-mix(in srgb, var(--vn-amber) 55%, transparent); }
.vn-widget.vn-over b { color: var(--vn-amber); }

/* keyboard hint */
.vn-kbd { gap: 5px; }
.vn-kbd kbd {
    font-family: inherit; font-size: 10.5px;
    padding: 1px 5px; border: 1px solid var(--vn-hair);
    border-bottom-width: 2px; border-radius: 3px;
    color: var(--vn-dim); background: var(--vn-bg);
}

/* user menu button */
.vn-user .vn-caret { transition: transform .15s ease; }
.vn-user[aria-expanded="true"] .vn-caret { transform: rotate(180deg); }
.vn-avatar {
    width: 20px; height: 20px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: color-mix(in srgb, var(--vn-green) 22%, var(--vn-bg));
    color: var(--vn-green); font-size: 10px; font-weight: 700; flex: none;
}

/* ---- acting-as-a-client (amber) state ------------------------------------- */
#var-nav.vn-acting .vn-bar { border-bottom-color: var(--vn-amber); box-shadow: inset 0 -2px 0 -1px var(--vn-amber); }
#var-nav.vn-acting .vn-brand .vn-mark { background: var(--vn-amber); box-shadow: 0 0 10px -1px var(--vn-amber); }
.vn-acting-chip {
    display: none;
    align-items: center; gap: 7px;
    height: 32px; padding: 0 11px;
    border: 1px solid var(--vn-amber);
    border-radius: 2px;
    color: var(--vn-amber);
    background: color-mix(in srgb, var(--vn-amber) 12%, transparent);
    font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase;
    cursor: pointer; white-space: nowrap;
}
.vn-acting-chip .vn-x { opacity: .7; font-size: 14px; line-height: 1; }
.vn-acting-chip:hover .vn-x { opacity: 1; }
#var-nav.vn-acting .vn-acting-chip { display: inline-flex; }
.vn-acting-chip .vn-eyebrow { color: color-mix(in srgb, var(--vn-amber) 70%, var(--vn-text)); opacity: .8; }

/* ---- contextual sub-row --------------------------------------------------- */
.vn-context {
    display: flex;
    align-items: center;
    gap: 4px;
    height: 38px;
    padding: 0 14px;
    background: color-mix(in srgb, var(--vn-bg) 60%, var(--vn-surface));
    border-bottom: 1px solid var(--vn-hair);
    overflow-x: auto;
    scrollbar-width: none;
}
.vn-context::-webkit-scrollbar { display: none; }
.vn-context .vn-ctx-eyebrow {
    font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase;
    color: var(--vn-dim); margin-right: 8px; opacity: .7; flex: none;
}
.vn-ctx-link {
    display: inline-flex; align-items: center;
    height: 26px; padding: 0 10px;
    border-radius: 2px;
    color: var(--vn-dim);
    text-decoration: none;
    font-size: 12px; white-space: nowrap;
    border: 1px solid transparent;
    cursor: pointer; background: none; font-family: inherit;
}
.vn-ctx-link:hover { color: var(--vn-text); background: color-mix(in srgb, var(--vn-text) 6%, transparent); }
.vn-ctx-link:focus-visible { outline: 2px solid var(--vn-green); outline-offset: 1px; }

/* ---- popovers (usage / status / switcher / user) -------------------------- */
.vn-pop {
    position: fixed;
    z-index: 950;
    min-width: 232px;
    max-width: min(340px, 92vw);
    background: var(--vn-surface);
    border: 1px solid var(--vn-hair);
    border-radius: 4px;
    box-shadow: 0 18px 46px -12px rgba(0,0,0,.7);
    padding: 6px;
    font-size: 12.5px;
    color: var(--vn-text);
}
.vn-pop-title {
    font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase;
    color: var(--vn-dim); padding: 6px 8px 8px;
}
.vn-pop-item {
    display: flex; align-items: center; gap: 9px;
    width: 100%;
    padding: 8px; border: none; border-radius: 3px;
    background: none; color: var(--vn-text);
    font-family: inherit; font-size: 12.5px; text-align: left;
    text-decoration: none; cursor: pointer;
}
.vn-pop-item:hover, .vn-pop-item.vn-cursor { background: color-mix(in srgb, var(--vn-text) 8%, transparent); }
.vn-pop-item[aria-current="true"] { color: var(--vn-green); }
.vn-pop-item .vn-ico { width: 15px; height: 15px; opacity: .8; flex: none; }
.vn-pop-item .vn-check { margin-left: auto; color: var(--vn-green); }
.vn-pop-sep { height: 1px; background: var(--vn-hair); margin: 5px 4px; }

.vn-metric { display: flex; justify-content: space-between; gap: 16px; padding: 6px 8px; }
.vn-metric .vn-k { color: var(--vn-dim); }
.vn-metric .vn-v { color: var(--vn-text); font-weight: 600; }
.vn-metric .vn-v.vn-over { color: var(--vn-amber); }
.vn-budget-bar { height: 5px; border-radius: 3px; background: var(--vn-hair); margin: 4px 8px 8px; overflow: hidden; }
.vn-budget-bar > i { display: block; height: 100%; background: var(--vn-green); }
.vn-budget-bar > i.vn-over { background: var(--vn-amber); }
.vn-pop-note { padding: 4px 8px 8px; color: var(--vn-dim); font-size: 11px; }

/* ---- command palette ------------------------------------------------------ */
.vn-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,.55);
    display: flex; align-items: flex-start; justify-content: center;
    padding-top: 12vh;
    -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.vn-overlay[hidden] { display: none; }
.vn-palette {
    width: min(560px, 92vw);
    background: var(--vn-surface);
    border: 1px solid var(--vn-hair);
    border-radius: 6px;
    box-shadow: 0 30px 80px -20px rgba(0,0,0,.8);
    overflow: hidden;
}
.vn-palette-input {
    width: 100%;
    padding: 16px 18px;
    background: transparent;
    border: none; border-bottom: 1px solid var(--vn-hair);
    color: var(--vn-text);
    font-family: inherit; font-size: 15px;
}
.vn-palette-input:focus { outline: none; }
.vn-palette-input::placeholder { color: var(--vn-dim); }
.vn-palette-list { max-height: 46vh; overflow-y: auto; padding: 6px; }
.vn-palette-empty { padding: 22px; text-align: center; color: var(--vn-dim); font-size: 12.5px; }
.vn-cmd {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 12px; border-radius: 4px; cursor: pointer;
    color: var(--vn-text); font-size: 13px;
}
.vn-cmd .vn-ico { width: 16px; height: 16px; opacity: .8; flex: none; }
.vn-cmd .vn-cmd-tag {
    margin-left: auto; font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
    color: var(--vn-dim); border: 1px solid var(--vn-hair); border-radius: 3px; padding: 1px 6px;
}
.vn-cmd.vn-cursor { background: color-mix(in srgb, var(--vn-green) 12%, transparent); color: var(--vn-green); }
.vn-cmd.vn-cursor .vn-ico { opacity: 1; }

/* ---- password modal ------------------------------------------------------- */
.vn-pw {
    width: min(380px, 92vw);
    background: var(--vn-surface);
    border: 1px solid var(--vn-hair);
    border-radius: 6px;
    padding: 22px;
    box-shadow: 0 30px 80px -20px rgba(0,0,0,.8);
}
.vn-pw h2 { margin: 0 0 4px; font-size: 15px; letter-spacing: .04em; text-transform: uppercase; color: var(--vn-text); }
.vn-pw p { margin: 0 0 14px; font-size: 12px; color: var(--vn-dim); }
.vn-pw input {
    width: 100%; margin-bottom: 10px; padding: 11px 12px;
    background: var(--vn-bg); border: 1px solid var(--vn-hair); border-radius: 3px;
    color: var(--vn-text); font-family: inherit; font-size: 13px;
}
.vn-pw input:focus { outline: none; border-color: var(--vn-green); }
.vn-pw-msg { min-height: 16px; font-size: 12px; margin-bottom: 10px; color: var(--vn-dim); }
.vn-pw-msg.vn-err { color: var(--vn-danger); }
.vn-pw-msg.vn-ok  { color: var(--vn-green); }
.vn-pw-actions { display: flex; gap: 10px; }
.vn-btn {
    flex: 1; padding: 11px; border-radius: 3px; cursor: pointer;
    font-family: inherit; font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase;
    border: 1px solid var(--vn-hair); background: transparent; color: var(--vn-text);
}
.vn-btn-primary { background: var(--vn-green); border-color: var(--vn-green); color: #06210f; font-weight: 700; }
.vn-btn:hover { border-color: color-mix(in srgb, var(--vn-text) 30%, transparent); }
.vn-btn-primary:hover { background: color-mix(in srgb, var(--vn-green) 88%, #fff); }

@keyframes vn-pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---- responsive ----------------------------------------------------------- */
.vn-burger { display: none; }
@media (max-width: 760px) {
    .vn-bar { gap: 4px; padding: 0 10px; }
    .vn-links { position: absolute; }              /* moved into a sheet on mobile */
    .vn-link .vn-lbl { display: inline; }
    /* collapse primary links into a dropdown sheet */
    .vn-links {
        display: none;
        top: var(--vn-h); left: 0; right: 0;
        flex-direction: column; align-items: stretch;
        background: var(--vn-surface); border-bottom: 1px solid var(--vn-hair);
        padding: 8px; gap: 2px;
    }
    #var-nav.vn-open .vn-links { display: flex; }
    .vn-link { height: 42px; }
    .vn-link.vn-active::before { display: none; }
    .vn-burger {
        display: inline-flex; align-items: center; justify-content: center;
        width: 34px; height: 34px; flex: none;
        background: transparent; border: 1px solid var(--vn-hair); border-radius: 2px;
        color: var(--vn-text); cursor: pointer;
    }
    .vn-usage-label, .vn-kbd, .vn-status-label { display: none; }   /* icon-only widgets */
    .vn-user .vn-name { display: none; }
    .vn-acting-chip .vn-eyebrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    #var-nav *, #var-nav *::before, #var-nav *::after { transition: none !important; animation: none !important; }
}