/* =============================================================================================
   SMT Sentinel — design system
   ---------------------------------------------------------------------------------------------
   Load order: bootstrap.min.css first, then this file.

   Brand tokens are shared with spamapi.smtusa.com's dashboard (same navy/blue SMT palette, same
   light/dark mechanism) for a consistent internal-tool family look. The CHROME is deliberately
   different: a slim top bar + command palette (Linear's pattern) instead of a wide sidebar, and a
   bento grid for the Overview instead of stacked flat panels — see the plan's "Dashboard UI —
   Design & Build Plan" section for the research this was based on.
   ============================================================================================= */

/* ---------------------------------------------------------------------------------------------
   1. Tokens
   --------------------------------------------------------------------------------------------- */
:root {
    /* brand — shared with spamapi.smtusa.com */
    --navy-900: #0F172A;
    --navy-800: #1E293B;
    --navy-700: #334155;
    --accent: #007BFF;
    --accent-hover: #0069D9;
    --accent-soft: rgba(0, 123, 255, .10);

    /* surfaces */
    --bg: #F8FAFC;
    --surface: #FFFFFF;
    --surface-2: #F1F5F9;
    --border: #E2E8F0;
    --border-strong: #CBD5E1;

    /* text */
    --text: #111827;
    --text-muted: #64748B;
    --text-inverse: #F8FAFC;

    /* generic semantic */
    --ok: #16A34A;
    --ok-soft: rgba(22, 163, 74, .10);
    --danger: #DC2626;
    --danger-soft: rgba(220, 38, 38, .10);
    --warn: #D97706;
    --warn-soft: rgba(217, 119, 6, .12);
    --info: #0EA5E9;
    --info-soft: rgba(14, 165, 233, .12);

    /* harm-category identity colours — a 5-way spread (blue/red/amber/violet/teal), chosen for
       distance around the hue wheel so no two adjacent categories collide under common colour-
       vision deficiencies. This has NOT yet been run through the same dataviz validator spamapi's
       2-colour spam/clean palette was (scripts/validate_palette.js) — do that before relying on
       colour alone anywhere it isn't paired with the category's text label. */
    --harm-nuisance: var(--info);
    --harm-nuisance-soft: var(--info-soft);
    --harm-ddos: var(--danger);
    --harm-ddos-soft: var(--danger-soft);
    --harm-probe: var(--warn);
    --harm-probe-soft: var(--warn-soft);
    --harm-compromise: #7C3AED;
    --harm-compromise-soft: rgba(124, 58, 237, .12);
    --harm-steal: #0D9488;
    --harm-steal-soft: rgba(13, 148, 136, .12);

    --chart-line: var(--accent);

    /* shape + depth */
    --radius: 10px;
    --radius-sm: 7px;
    --radius-pill: 999px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
    --shadow-md: 0 1px 3px rgba(15, 23, 42, .07), 0 8px 24px -8px rgba(15, 23, 42, .12);

    /* type */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    --step-0: .875rem;
    --step-1: 1rem;
    --step-2: 1.25rem;
    --step-3: 1.75rem;

    --topbar-h: 56px;
}

[data-bs-theme="dark"] {
    --bg: #0B1220;
    --surface: #111A2B;
    --surface-2: #16213A;
    --border: #223049;
    --border-strong: #2E3F5C;

    --text: #E5E7EB;
    --text-muted: #94A3B8;

    --accent: #3B8CFF;
    --accent-hover: #5A9EFF;
    --accent-soft: rgba(59, 140, 255, .14);

    --harm-compromise: #A78BFA;
    --harm-compromise-soft: rgba(167, 139, 250, .16);
    --harm-steal: #2DD4BF;
    --harm-steal-soft: rgba(45, 212, 191, .16);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md: 0 1px 3px rgba(0, 0, 0, .5), 0 8px 24px -8px rgba(0, 0, 0, .6);
}

:root,
[data-bs-theme="dark"] {
    --bs-body-bg: var(--bg);
    --bs-body-color: var(--text);
    --bs-body-font-family: var(--font-sans);
    --bs-body-font-size: var(--step-0);
    --bs-border-color: var(--border);
    --bs-primary: var(--accent);
    --bs-link-color: var(--accent);
    --bs-link-hover-color: var(--accent-hover);
    --bs-secondary-color: var(--text-muted);
    --bs-emphasis-color: var(--text);
}

/* ---------------------------------------------------------------------------------------------
   2. Base
   --------------------------------------------------------------------------------------------- */
* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    background: var(--bg);
    color: var(--text);
}

a { text-decoration: none; }

.text-muted-2 { color: var(--text-muted) !important; }

/* ---------------------------------------------------------------------------------------------
   3. Top bar (replaces a sidebar shell — see plan rationale)
   --------------------------------------------------------------------------------------------- */
.topbar {
    height: var(--topbar-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1rem;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.topbar-brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.topbar-brand svg { flex: none; }

.topbar-nav {
    display: flex;
    align-items: center;
    gap: .25rem;
    flex: 1 1 auto;
    overflow-x: auto;
    scrollbar-width: none;
}
.topbar-nav::-webkit-scrollbar { display: none; }

.topbar-nav a {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .4rem .7rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: var(--step-0);
    white-space: nowrap;
}
.topbar-nav a:hover { color: var(--text); background: var(--surface-2); }
.topbar-nav a.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.topbar-nav a.placeholder { opacity: .55; }

.topbar-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex: none;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    position: relative;
}
.icon-btn:hover { color: var(--text); background: var(--surface-2); }

.badge-count {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: var(--radius-pill);
    background: var(--danger);
    color: #fff;
    font-size: .65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.heartbeat-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 0 rgba(22, 163, 74, .5);
    animation: heartbeat-pulse 2.2s infinite;
    flex: none;
}
.heartbeat-dot.down { background: var(--danger); animation: none; }

@keyframes heartbeat-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(22, 163, 74, .45); }
    70%  { box-shadow: 0 0 0 7px rgba(22, 163, 74, 0); }
    100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

.topbar-drawer-toggle { display: none; }

@media (max-width: 860px) {
    .topbar-nav { display: none; }
    .topbar-drawer-toggle { display: inline-flex; }
}

/* ---------------------------------------------------------------------------------------------
   4. Command palette
   --------------------------------------------------------------------------------------------- */
dialog.cmdk {
    width: min(560px, 92vw);
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    background: var(--surface);
    color: var(--text);
}
dialog.cmdk::backdrop { background: rgba(15, 23, 42, .45); }

.cmdk-input {
    width: 100%;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: .9rem 1rem;
    font-size: var(--step-2);
    background: transparent;
    color: var(--text);
    outline: none;
}

.cmdk-results { max-height: 320px; overflow-y: auto; padding: .4rem; }

.cmdk-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .55rem .7rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text);
}
.cmdk-item:hover, .cmdk-item.is-active { background: var(--accent-soft); color: var(--accent); }
.cmdk-item small { color: var(--text-muted); }
.cmdk-empty { padding: 1.5rem; text-align: center; color: var(--text-muted); }

/* ---------------------------------------------------------------------------------------------
   5. Page shell
   --------------------------------------------------------------------------------------------- */
.page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 1rem 3rem;
}

.page-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.page-header h1 { font-size: var(--step-3); font-weight: 700; margin: 0; }

.card-2 {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

/* ---------------------------------------------------------------------------------------------
   6. Bento grid (Overview)
   --------------------------------------------------------------------------------------------- */
.bento {
    display: grid;
    gap: .9rem;
    grid-template-columns: repeat(4, 1fr);
    grid-template-areas:
        "kpi1 kpi2 kpi3 kpi4"
        "feed feed fleet fleet"
        "feed feed trend trend";
}

.bento .tile { padding: 1rem 1.1rem; min-width: 0; }
.tile-kpi:nth-of-type(1) { grid-area: kpi1; }
.tile-kpi:nth-of-type(2) { grid-area: kpi2; }
.tile-kpi:nth-of-type(3) { grid-area: kpi3; }
.tile-kpi:nth-of-type(4) { grid-area: kpi4; }
.tile-feed { grid-area: feed; display: flex; flex-direction: column; }
.tile-fleet { grid-area: fleet; }
.tile-trend { grid-area: trend; }

@media (max-width: 992px) {
    .bento {
        grid-template-columns: repeat(2, 1fr);
        grid-template-areas:
            "kpi1 kpi2"
            "kpi3 kpi4"
            "feed feed"
            "fleet fleet"
            "trend trend";
    }
}
@media (max-width: 560px) {
    .bento { grid-template-columns: 1fr; grid-template-areas: "kpi1" "kpi2" "kpi3" "kpi4" "feed" "fleet" "trend"; }
}

.kpi-label { color: var(--text-muted); font-size: var(--step-0); margin-bottom: .3rem; }
.kpi-value { font-size: 2rem; font-weight: 700; line-height: 1.1; }
.kpi-compare { font-size: .8rem; color: var(--text-muted); margin-top: .25rem; }

.tile-title {
    font-weight: 600;
    font-size: var(--step-0);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: .75rem;
}

/* ---------------------------------------------------------------------------------------------
   7. Chips (harm category, action, status)
   --------------------------------------------------------------------------------------------- */
.chip {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .18rem .55rem;
    border-radius: var(--radius-pill);
    font-size: .75rem;
    font-weight: 600;
    line-height: 1.4;
    white-space: nowrap;
}
.chip-signal {
    background: var(--surface-2);
    color: var(--text-muted);
    font-weight: 500;
    font-family: var(--font-mono);
}
.chip-harm-nuisance   { background: var(--harm-nuisance-soft);   color: var(--harm-nuisance); }
.chip-harm-ddos       { background: var(--harm-ddos-soft);       color: var(--harm-ddos); }
.chip-harm-probe      { background: var(--harm-probe-soft);      color: var(--harm-probe); }
.chip-harm-compromise { background: var(--harm-compromise-soft); color: var(--harm-compromise); }
.chip-harm-steal      { background: var(--harm-steal-soft);      color: var(--harm-steal); }

/* ---------------------------------------------------------------------------------------------
   8. Activity feed (Overview live tile + shared list styling)
   --------------------------------------------------------------------------------------------- */
.feed-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1 1 auto; }
.feed-row {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .55rem 0;
    border-bottom: 1px solid var(--border);
    font-size: var(--step-0);
}
.feed-row:last-child { border-bottom: none; }
.feed-row .ip { font-family: var(--font-mono); }
.feed-row .site { color: var(--text-muted); flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-row time { color: var(--text-muted); font-size: .75rem; flex: none; }
.feed-row.is-new { animation: feed-flash 1.6s ease-out; }
@keyframes feed-flash { from { background: var(--accent-soft); } to { background: transparent; } }
.feed-empty { color: var(--text-muted); padding: 1.5rem 0; text-align: center; }

/* ---------------------------------------------------------------------------------------------
   9. Evidence cards (Review Queue)
   --------------------------------------------------------------------------------------------- */
.evidence-list { display: flex; flex-direction: column; gap: .75rem; }

.evidence-card { padding: .9rem 1.1rem; }

.evidence-head {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-wrap: wrap;
}
.evidence-head .ip { font-family: var(--font-mono); font-weight: 600; }
.evidence-head .site { color: var(--text-muted); }
.evidence-head .age { margin-left: auto; color: var(--text-muted); font-size: .8rem; }

.evidence-reason { margin: .5rem 0 .6rem; }

.evidence-signals { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .7rem; }

.evidence-actions { display: flex; gap: .5rem; align-items: center; }

.evidence-detail {
    margin-top: .75rem;
    padding-top: .75rem;
    border-top: 1px dashed var(--border);
    display: none;
}
.evidence-card.is-expanded .evidence-detail { display: block; }
.evidence-detail dl { display: grid; grid-template-columns: max-content 1fr; gap: .25rem .75rem; margin: 0; font-size: var(--step-0); }
.evidence-detail dt { color: var(--text-muted); }
.evidence-detail dd { margin: 0; font-family: var(--font-mono); }

.evidence-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

/* ---------------------------------------------------------------------------------------------
   10. Dense tables (Activity)
   --------------------------------------------------------------------------------------------- */
.table-dense {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--step-0);
}
.table-dense th {
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    padding: .5rem .75rem;
    border-bottom: 1px solid var(--border-strong);
    white-space: nowrap;
}
.table-dense td {
    padding: .5rem .75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.table-dense tbody tr:hover { background: var(--surface-2); }
.table-dense .num, .table-dense .mono { font-family: var(--font-mono); text-align: right; }
.table-dense .ip { font-family: var(--font-mono); }

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1rem;
    align-items: center;
}
.filter-bar .form-select, .filter-bar .form-control { width: auto; }

.table-scroll { overflow-x: auto; }

.pager { display: flex; align-items: center; gap: .5rem; margin-top: 1rem; justify-content: flex-end; }
.pager .page-info { color: var(--text-muted); font-size: .85rem; margin-right: auto; }

/* ---------------------------------------------------------------------------------------------
   11. Charts (server-rendered inline SVG — see Charts/ChartSvg.cs)
   --------------------------------------------------------------------------------------------- */
.chart { display: block; width: 100%; }
.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-axis { fill: var(--text-muted); font-size: 10px; font-family: var(--font-sans); }

/* ---------------------------------------------------------------------------------------------
   12. Login card
   --------------------------------------------------------------------------------------------- */
.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    padding: 1.5rem;
}
.auth-card {
    width: 100%;
    max-width: 380px;
    padding: 2rem 1.75rem;
}
.auth-brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: var(--step-2); margin-bottom: 1.25rem; }
.auth-error {
    background: var(--danger-soft);
    color: var(--danger);
    border-radius: var(--radius-sm);
    padding: .6rem .8rem;
    font-size: var(--step-0);
    margin-bottom: 1rem;
}

/* ---------------------------------------------------------------------------------------------
   13. Placeholder page (deferred nav destinations)
   --------------------------------------------------------------------------------------------- */
.coming-soon {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
}

/* ---------------------------------------------------------------------------------------------
   14. Servers page
   --------------------------------------------------------------------------------------------- */
.key-reveal {
    background: var(--ok-soft);
    border: 1px solid var(--ok);
    padding: 1rem 1.1rem;
    margin-bottom: 1.25rem;
}
.key-reveal code {
    display: block;
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    padding: .6rem .8rem;
    margin: .5rem 0;
    font-family: var(--font-mono);
    font-size: var(--step-1);
    word-break: break-all;
}
.error-banner {
    background: var(--danger-soft);
    color: var(--danger);
    border-radius: var(--radius-sm);
    padding: .7rem 1rem;
    margin-bottom: 1.25rem;
}

.server-block { margin-bottom: 1.25rem; }
.server-block-head {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.server-block-head .name { font-weight: 700; font-size: var(--step-2); }
.server-block-head .meta { color: var(--text-muted); font-size: var(--step-0); margin-left: auto; }

.site-row {
    display: grid;
    grid-template-columns: 1.2fr 1.6fr auto auto;
    gap: .6rem;
    align-items: center;
    padding: .7rem 1.1rem;
    border-bottom: 1px solid var(--border);
}
.site-row:last-child { border-bottom: none; }
.site-row input[type="text"] { width: 100%; }
.site-row .iis-name { font-family: var(--font-mono); font-size: .8rem; color: var(--text-muted); display: block; margin-bottom: .2rem; }

@media (max-width: 720px) {
    .site-row { grid-template-columns: 1fr; }
}

.register-server-form { display: flex; gap: .5rem; align-items: end; flex-wrap: wrap; padding: 1rem 1.1rem; }

/* ---------------------------------------------------------------------------------------------
   15. Site Health page
   --------------------------------------------------------------------------------------------- */
.chip-status-down     { background: var(--danger-soft); color: var(--danger); }
.chip-status-degraded { background: var(--warn-soft);   color: var(--warn); }
.chip-status-stale    { background: var(--surface-2);   color: var(--text-muted); }
.chip-status-nodata   { background: var(--surface-2);   color: var(--text-muted); }
.chip-status-healthy  { background: var(--ok-soft);     color: var(--ok); }

.health-card { margin-bottom: 1.25rem; }
.health-card-head {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 1rem 1.1rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.health-card-head .name { font-weight: 700; font-size: var(--step-2); }
.health-card-head .meta { color: var(--text-muted); font-size: var(--step-0); margin-left: auto; }
.health-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1rem 1.1rem;
}
.health-charts .chart-label { font-size: var(--step-0); color: var(--text-muted); margin-bottom: .4rem; }
@media (max-width: 720px) {
    .health-charts { grid-template-columns: 1fr; }
}