/* ---------- Design tokens (light) ---------- */
:root {
    color-scheme: light;
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", sans-serif;
    --page: #f9f9f7;
    --surface: #fcfcfb;
    --surface-2: #f3f3f0;
    --ink-1: #0b0b0b;
    --ink-2: #52514e;
    --ink-3: #898781;
    --grid: #e1e0d9;
    --border: rgba(11, 11, 11, 0.10);
    --border-strong: rgba(11, 11, 11, 0.18);
    --accent: #2a78d6;
    --accent-soft: #cde2fb;
    --accent-ink: #ffffff;
    --series-1: #2a78d6;
    --series-2: #eb6834;
    --series-3: #1baf7a;
    --series-4: #eda100;
    --series-5: #e87ba4;
    --series-6: #008300;
    --series-7: #6250d6;
    --series-8: #e34948;
    --good: #0ca30c;
    --good-text: #006300;
    --warning: #fab219;
    --critical: #d03b3b;
    --shadow: 0 1px 2px rgba(11, 11, 11, 0.04), 0 4px 16px rgba(11, 11, 11, 0.05);
    --radius: 14px;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --page: #0d0d0d;
        --surface: #1a1a19;
        --surface-2: #232322;
        --ink-1: #f0efec;
        --ink-2: #c3c2b7;
        --ink-3: #898781;
        --grid: #2c2c2a;
        --border: rgba(255, 255, 255, 0.10);
        --border-strong: rgba(255, 255, 255, 0.18);
        --accent: #3987e5;
        --accent-soft: #184f95;
        --series-1: #3987e5;
        --series-2: #d95926;
        --series-3: #199e70;
        --series-4: #c98500;
        --series-5: #d55181;
        --series-6: #008300;
        --series-7: #9085e9;
        --series-8: #e66767;
        --good-text: #0ca30c;
        --shadow: none;
    }
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.45;
    background: var(--page);
    color: var(--ink-1);
}
h1, h2, h3 { margin: 0; letter-spacing: -0.01em; line-height: 1.2; }
h1 { font-size: 1.6rem; font-weight: 700; }
h1:focus, h1:focus-visible { outline: none; } /* Blazor moves focus here after navigation */
h2 { font-size: 1.05rem; font-weight: 650; color: var(--ink-1); }
h3 { font-size: 0.95rem; font-weight: 650; color: var(--ink-2); }
p { margin: 0; }
a { color: var(--accent); }
.muted { color: var(--ink-2); }
.small { font-size: 0.85rem; }
.ok { color: var(--good-text); }
.warn { color: #9a5b00; }
@media (prefers-color-scheme: dark) { .warn { color: var(--warning); } }
.error { color: var(--critical); font-weight: 600; }
.success { color: var(--good-text); font-weight: 600; }
.link { display: inline-block; margin-top: 10px; font-weight: 600; text-decoration: none; }
.back { text-decoration: none; font-weight: 600; }

/* ---------- Shell: mobile first (bottom tab bar) ---------- */
.app { min-height: 100dvh; display: flex; flex-direction: column; }
main {
    flex: 1;
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 16px 16px calc(84px + env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    align-content: start;
}
main > * { min-width: 0; }
.nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 20;
    display: flex;
    background: var(--surface);
    border-top: 1px solid var(--grid);
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
.nav-brand { display: none; }
.nav-spacer, .nav-user { display: none; }
.nav-form { display: contents; }
.nav-logo { display: inline-flex; width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: #fff; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-logo svg { width: 18px; height: 18px; }
button.nav-item { background: none; border: 0; font: inherit; cursor: pointer; width: 100%; }
.nav-item {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
    min-height: 52px;
    font-size: 11px; font-weight: 600;
    color: var(--ink-3);
    text-decoration: none;
    border-radius: 10px;
}
.nav-item svg { width: 22px; height: 22px; }
.nav-item.active { color: var(--accent); }

/* Desktop: side rail */
@media (min-width: 900px) {
    .app { flex-direction: row; }
    .nav {
        position: sticky; top: 0; bottom: auto;
        height: 100dvh; width: 220px; flex-shrink: 0;
        flex-direction: column; align-items: stretch; gap: 4px;
        padding: 20px 14px;
        border-top: 0; border-right: 1px solid var(--grid);
    }
    .nav-brand {
        display: flex; align-items: center; gap: 10px;
        font-weight: 700; font-size: 1.1rem;
        padding: 6px 10px 18px;
    }
    .nav-logo { width: 30px; height: 30px; }
    .nav-spacer { display: block; flex: 1; }
    .nav-user { display: block; padding: 8px 12px; }
    .nav-form { display: block; }
    .nav-item { flex: 0 0 auto; flex-direction: row; justify-content: flex-start; gap: 12px; min-height: 44px; padding: 0 12px; font-size: 0.95rem; }
    .nav-item.active { background: var(--surface-2); color: var(--ink-1); }
    .nav-item.active svg { color: var(--accent); }
    main { padding: 28px 32px 48px; }
}

/* ---------- Cards, tiles, hero ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}
.card > h2, .card > h3 { margin-bottom: 12px; }
.card.callout { display: grid; gap: 4px; border-left: 4px solid var(--accent); }
.hero { display: grid; gap: 4px; }
.eyebrow { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.hero-number { font-size: clamp(2.6rem, 10vw, 3.5rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.05; }
.hero-number .unit { font-size: 0.4em; font-weight: 600; color: var(--ink-2); letter-spacing: 0; }

.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (min-width: 700px) { .tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 14px 12px;
    display: grid; gap: 2px; align-content: start;
    min-width: 0;
}
.tile-label { font-size: 0.8rem; color: var(--ink-2); }
.tile-value { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.02em; overflow-wrap: anywhere; }
.tile-sub { font-size: 0.78rem; color: var(--ink-3); }

.split { display: grid; gap: 16px; align-items: center; }
@media (min-width: 700px) { .split { grid-template-columns: 220px 1fr; } }
.chart { position: relative; width: 100%; }
.chart canvas { width: 100% !important; }

.legend { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.legend li { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; align-items: center; }
.legend-name { font-weight: 600; }
.legend-value { grid-column: 2; font-size: 0.85rem; color: var(--ink-2); }
.legend.inline { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 0.85rem; color: var(--ink-2); margin-bottom: 8px; }
.legend.inline > span { display: inline-flex; align-items: center; gap: 6px; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }

/* ---------- Page chrome ---------- */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.toolbar { display: grid; gap: 10px; }
@media (min-width: 700px) { .toolbar { grid-template-columns: 1fr auto; } }
.row-between { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.row-end { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.actions .btn { flex: 1; }

/* ---------- Lists ---------- */
.list { padding: 4px 16px; }
.list-summary { padding: 12px 0 4px; font-size: 0.85rem; }
.owner-row {
    display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; align-items: center;
    padding: 12px 0; border-top: 1px solid var(--grid);
    color: inherit; text-decoration: none;
}
.owner-main { min-width: 0; }
.owner-name { font-weight: 600; overflow-wrap: anywhere; }
.owner-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; font-size: 0.8rem; }
.owner-side { text-align: right; display: grid; gap: 2px; justify-items: end; font-variant-numeric: tabular-nums; }
.owner-land { font-weight: 650; }
.chip { display: inline-block; padding: 1px 8px; border-radius: 999px; background: var(--surface-2); font-size: 0.75rem; color: var(--ink-2); }
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; }
.badge.good { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good-text); }
.badge.neutral { background: var(--surface-2); color: var(--ink-3); }

.plain-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.plain-list li { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-bottom: 8px; border-bottom: 1px solid var(--grid); font-size: 0.92rem; }
.plain-list li:last-child { border-bottom: 0; padding-bottom: 0; }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.check-list label { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 2px 12px; align-items: center; padding: 10px 8px; border-radius: 10px; cursor: pointer; min-height: 48px; }
.check-list li.on label { background: color-mix(in srgb, var(--accent) 8%, transparent); }
.check-list input[type="checkbox"] { width: 22px; height: 22px; accent-color: var(--accent); margin: 0; grid-row: span 2; }
.check-name { font-weight: 600; overflow-wrap: anywhere; }
.check-meta { grid-column: 2; font-size: 0.8rem; }
.check-list .badge { grid-column: 3; grid-row: span 2; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--grid); text-align: left; vertical-align: top; white-space: nowrap; }
th { font-size: 0.78rem; font-weight: 600; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.04em; }
td:first-child, th:first-child { padding-left: 0; white-space: normal; min-width: 140px; }
td:last-child, th:last-child { padding-right: 0; }
.num { text-align: right; }
tfoot th { color: var(--ink-1); text-transform: none; font-size: 0.92rem; border-bottom: 0; }

/* ---------- Forms ---------- */
form { display: grid; gap: 16px; }
fieldset.plain { border: 0; padding: 0; margin: 0; min-width: 0; display: grid; gap: 16px; }
fieldset.plain[disabled] .btn { display: none; }
.form { display: grid; gap: 14px; }
.form > h2 { margin-bottom: 0; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--ink-2); }
.field label .muted { font-weight: 400; }
.grid-2 { display: grid; gap: 14px; }
@media (min-width: 600px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
input:not([type="checkbox"]):not([type="range"]), select, textarea {
    font: inherit;
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid var(--border-strong);
    border-radius: 10px;
    background: var(--surface);
    color: var(--ink-1);
}
textarea { resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
input[type="range"] { width: 100%; accent-color: var(--accent); margin: 6px 0 0; }
.validation-message { color: var(--critical); font-size: 0.85rem; }

.switch { display: flex; align-items: center; gap: 12px; min-height: 44px; cursor: pointer; font-weight: 600; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch-track { position: relative; width: 46px; height: 28px; border-radius: 999px; background: var(--border-strong); transition: background .15s; flex-shrink: 0; }
.switch-track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; transition: transform .15s; box-shadow: 0 1px 2px rgba(0,0,0,.2); }
.switch input:checked + .switch-track { background: var(--good); }
.switch input:checked + .switch-track::after { transform: translateX(18px); }
.switch input:focus-visible + .switch-track { outline: 2px solid var(--accent); outline-offset: 2px; }

.share-row { display: grid; gap: 8px; padding: 12px 0; border-top: 1px solid var(--grid); }
@media (min-width: 600px) { .share-row { grid-template-columns: 1fr auto; align-items: end; } }
.share-calc { display: flex; gap: 16px; font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.total-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; padding: 12px 14px; border-radius: 10px; background: var(--surface-2); font-size: 0.95rem; }
.total-row strong { font-size: 1.05rem; }
.total-row.warn { background: color-mix(in srgb, var(--warning) 18%, transparent); }

.section-card { display: grid; gap: 12px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; }
.meter-row { display: grid; gap: 6px; }
.meter { height: 8px; border-radius: 4px; background: var(--accent-soft); overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--accent); border-radius: 4px; }

/* ---------- Buttons & segmented ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 46px; padding: 0 18px;
    border-radius: 11px; border: 1px solid var(--border-strong);
    background: var(--surface); color: var(--ink-1);
    font: inherit; font-weight: 650; text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.06); background: var(--accent); }
.btn.danger { color: var(--critical); border-color: color-mix(in srgb, var(--critical) 50%, transparent); }
.btn.small { min-height: 36px; padding: 0 12px; font-size: 0.85rem; }
.btn.block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: default; }

.segmented { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 11px; overflow: hidden; background: var(--surface); }
.segmented.full { display: flex; }
.segmented button {
    flex: 1; min-height: 42px; padding: 0 14px;
    border: 0; background: transparent; color: var(--ink-2);
    font: inherit; font-weight: 600; cursor: pointer;
}
.segmented button + button { border-left: 1px solid var(--border); }
.segmented button.on { background: var(--accent); color: var(--accent-ink); }

/* ---------- Login ---------- */
.login-shell { min-height: 100dvh; display: grid; place-items: center; padding: 24px 16px; }
.login-card { width: 100%; max-width: 400px; display: grid; gap: 16px; padding: 24px; }
.login-brand { display: flex; align-items: center; gap: 12px; }
.login-brand h1 { font-size: 1.3rem; }
.login-card form { gap: 14px; }

.results { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.results > * { min-width: 0; }

/* ---------- Blazor error bar ---------- */
#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    color: #0b0b0b;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

/* ---------- Assets (document previews) ---------- */
.page-head-stack { display: grid; gap: 4px; min-width: 0; }
.asset-group > h2 { margin-bottom: 4px; }
.asset-row {
    display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: center;
    padding: 12px 0; border-top: 1px solid var(--grid);
    color: inherit; text-decoration: none;
}
.asset-row:first-of-type { border-top: 0; }
.asset-icon {
    display: inline-flex; width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
    align-items: center; justify-content: center;
    background: color-mix(in srgb, var(--critical) 12%, transparent); color: var(--critical);
}
.asset-icon svg { width: 22px; height: 22px; }
.asset-main { min-width: 0; display: grid; gap: 2px; }
.asset-title { font-weight: 600; }
.asset-sub { font-size: 0.82rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.asset-side { display: grid; gap: 2px; justify-items: end; text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }

.doc-meta { display: grid; gap: 12px; }
.doc-meta .chip-row { margin-bottom: 0; }
.viewer { padding: 0; }
.viewer-bar {
    position: sticky; top: 0; z-index: 2;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 8px 8px 8px 16px;
    background: var(--surface); border-bottom: 1px solid var(--grid);
    border-radius: var(--radius) var(--radius) 0 0;
}
.viewer-bar .segmented button { min-height: 38px; padding: 0 14px; font-variant-numeric: tabular-nums; }
.viewer-bar .segmented button:disabled { opacity: 0.5; cursor: default; }
.viewer-pages {
    display: grid; gap: 12px; justify-items: center;
    padding: 12px; min-height: 200px;
    background: var(--surface-2);
    border-radius: 0 0 var(--radius) var(--radius);
    overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.viewer-pages .pdf-page { display: block; max-width: none; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18); }
.viewer-error { display: grid; gap: 4px; padding: 14px 16px; border-top: 1px solid var(--grid); }