/*
 * NFCScope admin panel.
 *
 * Same instrument palette as the Android app: status colour is treated as data,
 * so "readable", "protected", "unknown" and "refused" never share a hue. Written
 * by hand rather than pulled from a framework — the panel has no build step and
 * no runtime dependency on anything it does not serve itself.
 */

:root {
    --slate-950: #0b1015;
    --slate-900: #10171e;
    --slate-850: #161f28;
    --slate-800: #1d2833;
    --slate-700: #2a3846;
    --slate-600: #3b4d5e;
    --slate-400: #7b8b9a;
    --slate-200: #c7d2dc;
    --slate-100: #e6edf3;

    --signal: #2fbfa8;
    --signal-bright: #4dd8c7;
    --signal-dim: #1e8a79;
    --amber: #e0a458;
    --crimson: #d9534f;
    --violet: #8a7bd8;
    --azure: #5b8dd9;

    --radius: 12px;
    --radius-sm: 6px;
    --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--slate-950);
    color: var(--slate-100);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--signal-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout ---------- */

.shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 232px;
    flex: 0 0 232px;
    background: var(--slate-900);
    border-right: 1px solid var(--slate-800);
    padding: 20px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 18px;
    border-bottom: 1px solid var(--slate-800);
    margin-bottom: 12px;
}

.brand-mark {
    width: 28px; height: 28px;
    border-radius: 8px;
    background: linear-gradient(140deg, var(--signal-bright), var(--signal-dim));
    display: grid; place-items: center;
    color: var(--slate-950);
    font-weight: 700; font-size: 13px;
}

.brand-name { font-weight: 600; letter-spacing: 0.2px; }
.brand-sub { font-size: 11px; color: var(--slate-400); letter-spacing: 0.4px; text-transform: uppercase; }

.nav-group { padding: 10px 12px 4px; }
.nav-group-title {
    font-size: 10.5px; letter-spacing: 0.9px; text-transform: uppercase;
    color: var(--slate-600); padding: 0 8px 6px;
}

.nav-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; margin: 1px 0;
    border-radius: var(--radius-sm);
    color: var(--slate-200); font-size: 14px;
}
.nav-item:hover { background: var(--slate-850); text-decoration: none; }
.nav-item.active { background: var(--slate-800); color: var(--signal-bright); }
.nav-count {
    font-family: var(--mono); font-size: 11px;
    color: var(--slate-400); background: var(--slate-850);
    padding: 1px 6px; border-radius: 4px;
}

.main { flex: 1; min-width: 0; }

.topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 28px;
    border-bottom: 1px solid var(--slate-800);
    background: var(--slate-900);
    position: sticky; top: 0; z-index: 5;
}

.page-title { font-size: 19px; font-weight: 600; margin: 0; }
.page-sub { font-size: 13px; color: var(--slate-400); margin: 2px 0 0; }

.content { padding: 24px 28px 48px; max-width: 1400px; }

/* ---------- Cards & grids ---------- */

.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.card {
    background: var(--slate-900);
    border: 1px solid var(--slate-800);
    border-radius: var(--radius);
    padding: 18px 20px;
}

.card-title {
    font-size: 11px; letter-spacing: 0.8px; text-transform: uppercase;
    color: var(--slate-400); margin: 0 0 12px;
}

.metric-value { font-size: 30px; font-weight: 600; line-height: 1.1; }
.metric-caption { font-size: 12.5px; color: var(--slate-400); margin-top: 4px; }

/* ---------- Tables ---------- */

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--slate-800); }

table { width: 100%; border-collapse: collapse; background: var(--slate-900); }

th {
    text-align: left; font-size: 11px; letter-spacing: 0.7px; text-transform: uppercase;
    color: var(--slate-400); font-weight: 600;
    padding: 11px 14px; border-bottom: 1px solid var(--slate-800);
    background: var(--slate-850); white-space: nowrap;
}

td {
    padding: 11px 14px; border-bottom: 1px solid var(--slate-850);
    font-size: 14px; vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--slate-850); }

.mono { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.3px; }
.muted { color: var(--slate-400); }
.nowrap { white-space: nowrap; }

/* ---------- Chips ---------- */

.chip {
    display: inline-block;
    font-family: var(--mono); font-size: 11px; letter-spacing: 0.4px;
    padding: 2px 8px; border-radius: var(--radius-sm);
    border: 1px solid transparent; white-space: nowrap;
}
.chip-neutral  { color: var(--slate-400); background: rgba(123,139,154,.13); border-color: rgba(123,139,154,.4); }
.chip-positive { color: var(--signal);    background: rgba(47,191,168,.13);  border-color: rgba(47,191,168,.45); }
.chip-warning  { color: var(--amber);     background: rgba(224,164,88,.13);  border-color: rgba(224,164,88,.45); }
.chip-danger   { color: var(--crimson);   background: rgba(217,83,79,.13);   border-color: rgba(217,83,79,.45); }
.chip-info     { color: var(--azure);     background: rgba(91,141,217,.13);  border-color: rgba(91,141,217,.45); }
.chip-violet   { color: var(--violet);    background: rgba(138,123,216,.13); border-color: rgba(138,123,216,.45); }

/* ---------- Confidence bar ---------- */

.bar { height: 5px; border-radius: 3px; background: var(--slate-800); overflow: hidden; min-width: 70px; }
.bar > span { display: block; height: 100%; border-radius: 3px; background: var(--signal); }
.bar.is-moderate > span { background: var(--amber); }
.bar.is-low > span { background: var(--crimson); }

/* ---------- Forms & buttons ---------- */

label { display: block; font-size: 12px; color: var(--slate-400); margin-bottom: 4px; }

input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
    width: 100%;
    background: var(--slate-850);
    border: 1px solid var(--slate-700);
    border-radius: var(--radius-sm);
    color: var(--slate-100);
    padding: 8px 10px;
    font-size: 14px;
    font-family: inherit;
}
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--signal-dim);
    box-shadow: 0 0 0 2px rgba(47,191,168,.18);
}
textarea { font-family: var(--mono); font-size: 12.5px; min-height: 180px; resize: vertical; }

.field { margin-bottom: 14px; }
.field-row { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.hint { font-size: 12px; color: var(--slate-400); margin-top: 4px; }

.btn {
    display: inline-block; cursor: pointer;
    background: var(--signal-dim); color: #04211c;
    border: none; border-radius: var(--radius-sm);
    padding: 8px 14px; font-size: 14px; font-weight: 600;
    font-family: inherit;
}
.btn:hover { background: var(--signal); text-decoration: none; }
.btn-ghost {
    background: transparent; color: var(--slate-200);
    border: 1px solid var(--slate-700);
}
.btn-ghost:hover { background: var(--slate-850); color: var(--slate-100); }
.btn-danger { background: transparent; color: var(--crimson); border: 1px solid rgba(217,83,79,.5); }
.btn-danger:hover { background: rgba(217,83,79,.12); }
.btn-sm { padding: 4px 10px; font-size: 12.5px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar form { display: flex; gap: 8px; align-items: center; }
.toolbar input[type=text] { width: 260px; }

/* ---------- Detail lists ---------- */

.kv { display: grid; grid-template-columns: 190px 1fr; gap: 6px 14px; font-size: 14px; }
.kv dt { color: var(--slate-400); font-size: 13px; }
.kv dd { margin: 0; word-break: break-word; }
.kv dd.unknown { color: var(--slate-600); }

/* ---------- Findings & notices ---------- */

.finding {
    border-left: 3px solid var(--slate-700);
    padding: 8px 0 8px 12px;
    margin-bottom: 10px;
}
.finding.info { border-color: var(--azure); }
.finding.notice { border-color: var(--amber); }
.finding.warning { border-color: var(--crimson); }
.finding-title { font-weight: 600; font-size: 14px; }
.finding-detail { font-size: 13px; color: var(--slate-400); }

.notice {
    border-radius: var(--radius); padding: 12px 14px; font-size: 13.5px;
    border: 1px solid var(--slate-700); background: var(--slate-850);
    margin-bottom: 16px;
}
.notice-ok { border-color: rgba(47,191,168,.4); background: rgba(47,191,168,.08); }
.notice-warn { border-color: rgba(224,164,88,.4); background: rgba(224,164,88,.08); }
.notice-error { border-color: rgba(217,83,79,.45); background: rgba(217,83,79,.08); }

/* ---------- Memory map ---------- */

.sector { margin-bottom: 14px; }
.sector-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.sector-name { font-family: var(--mono); font-size: 12px; color: var(--slate-400); }
.blocks { display: flex; flex-wrap: wrap; gap: 4px; }
.block {
    min-width: 62px; padding: 5px 6px; text-align: center;
    border-radius: var(--radius-sm); font-family: var(--mono); font-size: 11px;
    border: 1px solid transparent;
}
.block-read      { color: var(--signal);  background: rgba(47,191,168,.12);  border-color: rgba(47,191,168,.4); }
.block-protected { color: var(--amber);   background: rgba(224,164,88,.12);  border-color: rgba(224,164,88,.4); }
.block-trailer   { color: var(--violet);  background: rgba(138,123,216,.12); border-color: rgba(138,123,216,.4); }
.block-mfr       { color: var(--azure);   background: rgba(91,141,217,.12);  border-color: rgba(91,141,217,.4); }
.block-unknown   { color: var(--slate-400); background: rgba(123,139,154,.1); border-color: rgba(123,139,154,.3); }
.block small { display: block; opacity: .75; font-size: 10px; }

/* ---------- Hex dump ---------- */

.hex {
    font-family: var(--mono); font-size: 12.5px; line-height: 1.7;
    background: var(--slate-950); border: 1px solid var(--slate-800);
    border-radius: var(--radius); padding: 12px 14px; overflow-x: auto;
    white-space: pre;
}
.hex .off { color: var(--slate-600); }
.hex .missing { color: var(--amber); }
.hex .ascii { color: var(--slate-400); }

/* ---------- Login ---------- */

.login-shell { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card { width: 100%; max-width: 380px; }
.login-card .brand { border-bottom: none; padding: 0 0 18px; margin: 0 0 6px; }

/* ---------- Pagination ---------- */

.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pagination a, .pagination span {
    padding: 5px 10px; border-radius: var(--radius-sm);
    border: 1px solid var(--slate-800); font-size: 13px; color: var(--slate-200);
}
.pagination .current { background: var(--slate-800); color: var(--signal-bright); }
.pagination svg { width: 14px; height: 14px; }

/* ---------- Misc ---------- */

.section-gap { margin-top: 22px; }
.flex { display: flex; gap: 10px; align-items: center; }
.flex-between { display: flex; gap: 10px; align-items: center; justify-content: space-between; }
.empty { padding: 40px 20px; text-align: center; color: var(--slate-400); }
.empty h3 { color: var(--slate-200); margin: 0 0 6px; font-size: 16px; }

@media (max-width: 860px) {
    .sidebar { display: none; }
    .content { padding: 18px; }
    .kv { grid-template-columns: 1fr; }
}