/* ---------------------------------------------------------------------------
   App shell: top bar, icon rail, status strips, command palette, skeletons.
   Uses the --bz-* Studio palette from app.css.
--------------------------------------------------------------------------- */

:root {
    --bz-warn-bg: #fff6e6;
    --bz-warn-border: #e8d4a6;
    --bz-warn-text: #674913;
    --bz-warn-icon: #ad741d;
    --bz-error-bg: #fdecec;
    --bz-error-border: #efb7b7;
    --bz-error-text: #7a2323;
    --bz-ok: #2E8B57;
    --bz-bad: #D14343;
    --bz-shimmer-a: rgba(31, 42, 55, .06);
    --bz-shimmer-b: rgba(31, 42, 55, .12);
}

.app-theme-dark {
    --bz-warn-bg: #46443E;
    --bz-warn-border: #70552a;
    --bz-warn-text: #f3d5a0;
    --bz-warn-icon: #f1bb6e;
    --bz-error-bg: #4a3436;
    --bz-error-border: #7c4446;
    --bz-error-text: #f6c4c4;
    --bz-ok: #4CCD8D;
    --bz-bad: #EF6B6B;
    --bz-shimmer-a: rgba(255, 255, 255, .04);
    --bz-shimmer-b: rgba(255, 255, 255, .09);
}

kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    margin-left: 3px;
    border: 1px solid var(--bz-border);
    border-bottom-width: 2px;
    border-radius: 4px;
    background: var(--bz-card);
    color: var(--mud-palette-text-secondary);
    font: 600 .68rem/1 "Segoe UI", "Inter", Arial, sans-serif;
}

/* ---------- Page area ---------- */

.app-shell .app-page-content {
    margin: 0 auto;
    padding: 18px 24px 32px;
    max-width: 1480px;
    box-sizing: border-box;
}

@media (max-width: 600px) {
    .app-shell .app-page-content { padding: 12px 12px 24px; }
}

/* Every page leads with an H4 title; at app density it is a compact header, not a hero. */
.app-shell .app-page-content .mud-typography-h4 {
    font-family: "Segoe UI Semibold", "Segoe UI", "Inter", Arial, sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.3;
}

/* ---------- Top bar ---------- */

.app-shell .app-topbar .mud-toolbar {
    gap: 4px;
    padding-left: 12px;
    padding-right: 12px;
}

.app-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    margin-left: 18px;
    padding-left: 16px;
    border-left: 1px solid var(--bz-border);
    font-size: .86rem;
    white-space: nowrap;
    overflow: hidden;
}

.app-breadcrumb-part,
.app-breadcrumb-sep { color: var(--mud-palette-text-secondary); }
.app-breadcrumb-current { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }

.app-search-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: min(320px, 32vw);
    height: 32px;
    padding: 0 6px 0 10px;
    border: 1px solid var(--bz-border);
    border-radius: 6px;
    background: var(--bz-well);
    color: var(--mud-palette-text-secondary);
    font: inherit;
    font-size: .84rem;
    cursor: pointer;
    transition: border-color .12s, background .12s;
}

.app-search-trigger:hover { border-color: var(--bz-accent); }
.app-search-trigger:focus-visible { outline: 2px solid var(--bz-accent); outline-offset: 1px; }
.app-search-label { flex: 1; text-align: left; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-search-keys { display: inline-flex; }

.app-status-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    margin: 0 8px 0 10px;
    border-radius: 50%;
    background: var(--bz-ok);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--bz-ok) 22%, transparent);
}

.app-status-offline {
    background: var(--bz-bad);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--bz-bad) 25%, transparent);
    animation: bz-pulse 1.4s ease-in-out infinite;
}

.app-credit-meter {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 30px;
    padding: 0 10px;
    border: 1px solid color-mix(in srgb, var(--bz-accent) 45%, var(--bz-border));
    border-radius: 15px;
    background: color-mix(in srgb, var(--bz-accent) 10%, transparent);
    color: var(--mud-palette-text-primary);
    font: 600 .84rem/1 "Segoe UI", "Inter", Arial, sans-serif;
    font-variant-numeric: tabular-nums;
    cursor: pointer;
}

.app-credit-meter .mud-icon-root { color: var(--bz-accent); font-size: 1rem; }
.app-credit-meter.empty { border-color: var(--bz-warn-border); background: var(--bz-warn-bg); color: var(--bz-warn-text); }
.app-credit-meter.empty .mud-icon-root { color: var(--bz-warn-icon); }

.app-credit-panel { width: 250px; padding: 10px 14px 6px; }
.app-credit-total { margin-bottom: 8px; color: var(--mud-palette-text-secondary); font-size: .82rem; }
.app-credit-total span { margin-right: 4px; color: var(--mud-palette-text-primary); font-size: 1.4rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.app-credit-bar { height: 6px; margin-bottom: 10px; border-radius: 3px; background: color-mix(in srgb, var(--mud-palette-tertiary) 70%, transparent); overflow: hidden; }
.app-credit-bar .monthly { display: block; height: 100%; background: var(--bz-accent); }
.app-credit-row { display: flex; align-items: center; gap: 8px; font-size: .84rem; }
.app-credit-row .value { margin-left: auto; font-weight: 600; font-variant-numeric: tabular-nums; }
.app-credit-row .dot { width: 8px; height: 8px; border-radius: 2px; }
.app-credit-row .dot.monthly { background: var(--bz-accent); }
.app-credit-row .dot.topup { background: color-mix(in srgb, var(--mud-palette-tertiary) 70%, transparent); }
.app-credit-note { margin: 1px 0 7px 16px; color: var(--mud-palette-text-secondary); font-size: .74rem; }

.app-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bz-accent), color-mix(in srgb, var(--bz-accent) 45%, var(--mud-palette-tertiary)));
    color: #fff;
    font: 700 .74rem/1 "Segoe UI", "Inter", Arial, sans-serif;
    letter-spacing: .02em;
    cursor: pointer;
}

.app-avatar:focus-visible { outline: 2px solid var(--bz-accent); outline-offset: 2px; }
.app-avatar.large { width: 38px; height: 38px; flex: 0 0 38px; font-size: .85rem; cursor: default; }

.app-user-card { display: flex; align-items: center; gap: 10px; width: 300px; padding: 10px 14px; }
.app-user-text { flex: 1; min-width: 0; }
.app-user-name { font-weight: 600; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-user-email { color: var(--mud-palette-text-secondary); font-size: .78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app-accent-row { display: flex; align-items: center; gap: 8px; padding: 4px 16px 8px 46px; color: var(--mud-palette-text-secondary); font-size: .8rem; }
.app-accent-row > span { margin-right: auto; }
.app-accent { width: 18px; height: 18px; padding: 0; border: 2px solid transparent; border-radius: 50%; background: var(--swatch); box-shadow: inset 0 0 0 2px var(--mud-palette-surface); cursor: pointer; }
.app-accent.selected { border-color: var(--swatch); }

@media (max-width: 960px) {
    .app-breadcrumb { display: none; }
    .app-search-trigger { width: 34px; padding: 0; justify-content: center; }
    .app-search-label, .app-search-keys { display: none; }
}

@media (max-width: 600px) {
    .app-shell .app-topbar .bz-badge { display: none; }
}

/* ---------- Icon rail ---------- */

.app-shell .app-drawer { transition: width .18s ease; }
.app-shell .app-drawer .mud-navmenu { padding: 10px 8px 16px; }

.bz-nav-divider { height: 1px; margin: 8px 6px 10px; background: var(--bz-line); }

.app-rail-collapsed .app-drawer .mud-nav-link {
    padding-left: 11px;
    padding-right: 0;
    justify-content: flex-start;
}

.app-rail-collapsed .app-drawer .mud-nav-link-text { opacity: 0; }
.app-rail-collapsed .app-drawer .mud-tooltip-root { display: block; }

/* ---------- Status strips (replace stacked alert banners) ---------- */

.app-strip {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    margin-bottom: 14px;
    padding: 2px 6px 2px 12px;
    border: 1px solid;
    border-radius: 6px;
    font-size: .86rem;
    font-weight: 500;
}

.app-strip > span { flex: 1; }
.app-strip-warning { background: var(--bz-warn-bg); border-color: var(--bz-warn-border); color: var(--bz-warn-text); }
.app-strip-warning > .mud-icon-root { color: var(--bz-warn-icon); }
.app-strip-error { background: var(--bz-error-bg); border-color: var(--bz-error-border); color: var(--bz-error-text); }

/* ---------- Refresh control ---------- */

.bz-refresh { display: inline-flex; align-items: center; gap: 6px; }
.bz-refresh-age { color: var(--mud-palette-text-secondary); font-size: .76rem; white-space: nowrap; }
.bz-refresh .bz-refresh-button { border: 1px solid var(--bz-border); border-radius: 6px; background: var(--bz-card); }
.bz-refresh .bz-refresh-button:hover { background: var(--bz-card-hover); }
.bz-spin .mud-icon-root { animation: bz-spin .8s linear infinite; }

/* ---------- Command palette ---------- */

.bz-palette-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1500;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 12vh 16px 16px;
    background: rgba(10, 12, 16, .45);
    backdrop-filter: blur(2px);
    animation: bz-fade .12s ease-out;
}

.bz-palette {
    width: min(620px, 100%);
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--bz-border);
    border-radius: 10px;
    background: var(--mud-palette-surface);
    color: var(--mud-palette-text-primary);
    box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
    overflow: hidden;
    animation: bz-pop .14s ease-out;
}

.bz-palette-search { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--bz-line); color: var(--mud-palette-text-secondary); }
.bz-palette-search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--mud-palette-text-primary); font: inherit; font-size: 1rem; }
.bz-palette-results { flex: 1; overflow-y: auto; padding: 6px; }
.bz-palette-section { padding: 10px 10px 4px; color: var(--mud-palette-text-secondary); font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.bz-palette-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 6px; font-size: .9rem; cursor: pointer; }
.bz-palette-item .mud-icon-root { color: var(--mud-palette-text-secondary); }
.bz-palette-item.selected { background: var(--bz-selection); color: var(--bz-selection-text); }
.bz-palette-item.selected .mud-icon-root { color: var(--bz-selection-text); }
.bz-palette-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bz-palette-hint { color: var(--mud-palette-text-secondary); font-size: .76rem; }
.bz-palette-item.selected .bz-palette-hint { color: inherit; opacity: .8; }
.bz-palette-empty { padding: 24px; color: var(--mud-palette-text-secondary); text-align: center; }
.bz-palette-footer { display: flex; gap: 16px; padding: 8px 14px; border-top: 1px solid var(--bz-line); color: var(--mud-palette-text-secondary); font-size: .74rem; }
.bz-palette-footer kbd { margin: 0 2px 0 0; }

/* ---------- Shortcut sheet & about ---------- */

.bz-shortcuts { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px 32px; }
.bz-shortcuts h3 { margin: 4px 0 8px; color: var(--mud-palette-text-secondary); font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.bz-shortcut { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--bz-line); font-size: .88rem; }
.bz-about-grid { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; font-size: .88rem; }
.bz-about-grid > span:nth-child(odd) { color: var(--mud-palette-text-secondary); }

/* ---------- Skeletons ---------- */

.bz-shimmer {
    display: block;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--bz-shimmer-a) 25%, var(--bz-shimmer-b) 45%, var(--bz-shimmer-a) 65%);
    background-size: 300% 100%;
    animation: bz-shimmer 1.3s ease-in-out infinite;
}

.app-skeleton { --bz-shimmer-a: rgba(255, 255, 255, .04); --bz-shimmer-b: rgba(255, 255, 255, .09); min-height: 100vh; background: #2A2E35; }
.app-skeleton-bar { display: flex; align-items: center; gap: 10px; height: 48px; padding: 0 16px; border-bottom: 1px solid #4E5764; }
.app-skeleton-bar .logo { width: 24px; height: 24px; }
.app-skeleton-bar .word { width: 90px; height: 14px; }
.app-skeleton-bar .search { width: 260px; height: 30px; margin-left: auto; }
.app-skeleton-body { display: flex; }
.app-skeleton-rail { display: flex; flex-direction: column; gap: 8px; width: 216px; min-height: calc(100vh - 49px); padding: 12px 8px; background: #24282F; border-right: 1px solid #4E5764; }
.app-skeleton-rail .row { height: 32px; }
.app-skeleton-main { flex: 1; display: flex; flex-direction: column; gap: 16px; max-width: 1480px; padding: 22px 24px; }
.app-skeleton-main .title { width: 220px; height: 24px; }
.app-skeleton-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.app-skeleton-tiles .tile { height: 96px; }
.app-skeleton-main .panel { height: 280px; }

@media (max-width: 700px) { .app-skeleton-rail { width: 40px; } .app-skeleton-bar .search { width: 34px; } }

/* ---------- Reconnect banner (Blazor toggles the components-reconnect-* classes) ---------- */

.bz-reconnect {
    position: fixed;
    top: 10px;
    left: 50%;
    z-index: 2000;
    display: none;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    border: 1px solid #70552a;
    border-radius: 20px;
    background: #46443E;
    color: #f3d5a0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .4);
    font: 500 .86rem/1.2 "Segoe UI", "Inter", Arial, sans-serif;
    transform: translateX(-50%);
}

.bz-reconnect a { color: #fff; font-weight: 600; }
.bz-reconnect > span:not(.bz-reconnect-spinner) { display: none; }
.bz-reconnect.components-reconnect-show,
.bz-reconnect.components-reconnect-retrying,
.bz-reconnect.components-reconnect-failed,
.bz-reconnect.components-reconnect-rejected { display: flex; }
.bz-reconnect.components-reconnect-show .bz-reconnect-show,
.bz-reconnect.components-reconnect-retrying .bz-reconnect-show,
.bz-reconnect.components-reconnect-failed .bz-reconnect-failed,
.bz-reconnect.components-reconnect-rejected .bz-reconnect-rejected { display: inline; }
.bz-reconnect-spinner { width: 12px; height: 12px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: bz-spin .8s linear infinite; }
.bz-reconnect.components-reconnect-failed .bz-reconnect-spinner,
.bz-reconnect.components-reconnect-rejected .bz-reconnect-spinner { display: none; }

/* Once reconnecting has given up, blur and dim the dead page behind the banner and block clicks on it. */
body:has(.bz-reconnect.components-reconnect-failed)::after,
body:has(.bz-reconnect.components-reconnect-rejected)::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 1999;
    background: rgba(0, 0, 0, .25);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    animation: bz-fade-in .2s ease-out;
}

@keyframes bz-fade-in { from { opacity: 0; } }

/* ---------- Motion ---------- */

@keyframes bz-spin { to { transform: rotate(360deg); } }
@keyframes bz-pulse { 50% { opacity: .45; } }
@keyframes bz-fade { from { opacity: 0; } }
@keyframes bz-pop { from { opacity: 0; transform: translateY(-6px) scale(.985); } }
@keyframes bz-shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }

@media (prefers-reduced-motion: reduce) {
    .bz-shimmer, .bz-spin .mud-icon-root, .app-status-offline, .bz-reconnect-spinner { animation: none; }
    .bz-palette, .bz-palette-backdrop, body::after { animation: none; }
}

/* Generic page placeholder: two columns of panel-sized blocks. */
.bz-skeleton-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.bz-skeleton-grid .bz-shimmer { height: 190px; }

/* Session check failed (API unreachable): a centered card instead of a blank page. */
.app-offline { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; background: #2A2E35; }
.app-offline-card { max-width: 420px; padding: 28px 28px 24px; border: 1px solid #4E5764; border-radius: 10px; background: #24282F; color: #E7EAEF; text-align: center; }
.app-offline-card > .mud-icon-root { font-size: 2.2rem; color: #F1BB6E; }
.app-offline-card h1 { margin: 10px 0 6px; font-size: 1.15rem; font-weight: 600; }
.app-offline-card p { margin: 0 0 18px; color: #A6AFBB; font-size: .9rem; }
.app-offline-card .mud-button-root { text-transform: none; letter-spacing: 0; }

/* The accent follows the chosen theme (Botzilla / Ocean / Forest / Ember) instead of a fixed blue. */
:root,
.app-theme-dark { --bz-accent: var(--mud-palette-primary); }

/* MudNavLink puts Class on its wrapper; an alias match (Settings on /billing) styles the link like an exact match. */
.app-shell .app-drawer .bz-nav-alias-active > .mud-nav-link {
    background: var(--bz-selection);
    color: var(--bz-selection-text);
    box-shadow: var(--bz-card-shadow);
    font-weight: 600;
}
.app-shell .app-drawer .bz-nav-alias-active > .mud-nav-link .mud-nav-link-icon { color: var(--bz-selection-text); }