/* atomicRouter — design system */

:root {
  --accent: #a3e635;
  --accent-soft: rgba(163, 230, 53, 0.12);
  --accent-line: rgba(163, 230, 53, 0.35);

  --bg-0: #0a0b0d;
  --bg-1: #0f1115;
  --bg-2: #161a20;
  --bg-3: #1c222a;
  --bg-hover: #1a1f27;
  --border: #232831;
  --border-soft: #1a1e25;

  --fg-0: #e8ebf0;
  --fg-1: #9aa3b2;
  --fg-2: #5d6675;
  --fg-3: #3a414c;

  --danger: #ef4444;
  --warn: #f59e0b;
  --ok: #22c55e;

  --row: 32px;
  --radius: 6px;
  --radius-sm: 4px;

  --font-ui: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.02) inset, 0 12px 32px rgba(0, 0, 0, 0.35);
}

/* Light theme override */
:root[data-theme="light"] {
  --bg-0: #f6f7f8;
  --bg-1: #ffffff;
  --bg-2: #fafbfc;
  --bg-3: #f0f2f5;
  --bg-hover: #eef1f4;
  --border: #e4e7eb;
  --border-soft: #eef1f4;
  --fg-0: #0e1218;
  --fg-1: #4a5260;
  --fg-2: #7a8392;
  --fg-3: #aab2bd;
  --accent-soft: rgba(163, 230, 53, 0.18);
  --accent-line: rgba(72, 110, 12, 0.4);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 8px 24px rgba(15, 20, 28, 0.06);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg-0);
  color: var(--fg-0);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
}
body {
  overflow: hidden;
}
#app {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: none;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: none;
  outline: none;
}
a { color: inherit; text-decoration: none; }

.mono { font-family: var(--font-mono); }
.dim { color: var(--fg-1); }
.dim-2 { color: var(--fg-2); }
.accent { color: var(--accent); }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* === Login === */
.login-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100vh;
  background: var(--bg-0);
}
.login-side {
  background:
    radial-gradient(800px 400px at 30% 20%, rgba(163, 230, 53, 0.10), transparent 60%),
    radial-gradient(600px 300px at 80% 80%, rgba(163, 230, 53, 0.06), transparent 60%),
    var(--bg-1);
  border-right: 1px solid var(--border);
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.login-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  mask-image: radial-gradient(circle at center, black 30%, transparent 75%);
  pointer-events: none;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.login-brand .name {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.login-brand .tag {
  margin-left: 8px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-1);
}
.login-hero {
  position: relative;
  z-index: 1;
}
.login-hero h1 {
  margin: 0 0 16px 0;
  font-size: 36px;
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.025em;
  max-width: 480px;
}
.login-hero h1 .hl {
  color: var(--accent);
}
.login-hero p {
  color: var(--fg-1);
  max-width: 460px;
  margin: 0;
  font-size: 14px;
}
.login-flow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-1);
  overflow: hidden;
  flex-wrap: wrap;
}
.login-flow .node {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-1);
  color: var(--fg-0);
  white-space: nowrap;
}
.login-flow .arrow { padding: 0 8px; color: var(--accent); }

.login-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-0);
  padding: 32px;
}
.login-card {
  width: 100%;
  max-width: 360px;
}
.login-card h2 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 4px 0;
}
.login-card .sub {
  color: var(--fg-1);
  margin-bottom: 28px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.field label {
  font-size: 11px;
  color: var(--fg-1);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 500;
}
.input {
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-1);
  padding: 0 12px;
  transition: border-color 0.12s, box-shadow 0.12s, background 0.12s;
}
.input:focus, .input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background: var(--bg-2);
}
.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.input-row input {
  flex: 1;
  height: 100%;
}
.btn {
  height: 38px;
  padding: 0 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--fg-0);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.btn:hover { background: var(--bg-hover); border-color: var(--fg-3); }
.btn-primary {
  background: var(--accent);
  color: #0c1305;
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover {
  background: #b8f04a;
  border-color: #b8f04a;
}
.btn-ghost {
  background: transparent;
  border: 1px solid transparent;
  color: var(--fg-1);
}
.btn-ghost:hover { color: var(--fg-0); background: var(--bg-2); }
.btn-icon {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 4px;
  border: 1px solid transparent;
  color: var(--fg-1);
}
.btn-icon:hover {
  color: var(--fg-0);
  background: var(--bg-2);
  border-color: var(--border);
}
.btn-danger:hover {
  color: var(--danger);
}
.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
.btn-block { width: 100%; }
.hint {
  font-size: 11px;
  color: var(--fg-2);
  margin-top: 12px;
}
.hint kbd {
  font-family: var(--font-mono);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 10px;
  color: var(--fg-1);
}

/* === Shell === */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w, 240px) 1fr;
  height: 100vh;
  background: var(--bg-0);
}
.shell[data-sidebar="rail"] { --sidebar-w: 60px; }
.shell[data-sidebar="wide"] { --sidebar-w: 260px; }

.sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 14px 10px;
  overflow: hidden;
}
.sb-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 6px 14px 6px;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 10px;
}
.sb-brand .name { font-weight: 600; letter-spacing: -0.01em; }
.sb-brand .meta { font-family: var(--font-mono); font-size: 10px; color: var(--fg-2); }
.sb-section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-2);
  padding: 14px 8px 6px 8px;
  font-weight: 500;
}
.sb-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  color: var(--fg-1);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  position: relative;
}
.sb-item:hover { color: var(--fg-0); background: var(--bg-2); }
.sb-item.active {
  color: var(--accent);
  background: var(--accent-soft);
}
.sb-item.active::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.sb-item .badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-2);
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 999px;
}
.sb-item.active .badge { color: var(--accent); border-color: var(--accent-line); background: transparent; }

.sidebar[data-mode="rail"] .sb-brand .name,
.sidebar[data-mode="rail"] .sb-brand .meta,
.sidebar[data-mode="rail"] .sb-item span.label,
.sidebar[data-mode="rail"] .sb-item .badge,
.sidebar[data-mode="rail"] .sb-section-label,
.sidebar[data-mode="rail"] .sb-foot { display: none; }
.sidebar[data-mode="rail"] .sb-item { justify-content: center; }

.sb-foot {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--fg-1);
}
.sb-foot .avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: #0c1305;
  font-weight: 600;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sb-foot .who { display: flex; flex-direction: column; line-height: 1.2; }
.sb-foot .who small { color: var(--fg-2); font-size: 10px; }
.sb-foot .spacer { flex: 1; }

/* === Main panel === */
.main {
  overflow: auto;
  display: flex;
  flex-direction: column;
  background: var(--bg-0);
}
.topbar {
  height: 48px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-0);
  position: sticky;
  top: 0;
  z-index: 5;
}
.topbar h1 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.topbar .crumbs {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
}
.topbar .crumbs .sep { padding: 0 6px; }
.topbar .spacer { flex: 1; }
.topbar .status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}
.topbar .status-text {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-1);
}

.page {
  padding: 22px 24px 60px 24px;
  flex: 1;
}
.page-h {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 18px;
}
.page-h h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.page-h .desc { color: var(--fg-1); margin-top: 2px; }
.page-h .spacer { flex: 1; }

/* === Cards === */
.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.card-h {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-soft);
}
.card-h h3 {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.card-h .sub { color: var(--fg-2); font-size: 11px; font-family: var(--font-mono); }
.card-h .spacer { flex: 1; }
.card-body { padding: 14px; }
.card-body.flush { padding: 0; }

/* === KPI strip === */
.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.kpi {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  position: relative;
  overflow: hidden;
}
.kpi .label {
  font-size: 11px;
  color: var(--fg-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}
.kpi .value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  margin-top: 6px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.kpi .delta {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
}
.kpi .delta .up { color: var(--ok); }
.kpi .delta .down { color: var(--danger); }
.kpi .spark {
  position: absolute;
  right: -10px;
  bottom: -6px;
  opacity: 0.7;
}

/* === Time range tabs === */
.range-tabs {
  display: inline-flex;
  align-items: center;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  gap: 2px;
}
.range-tabs button {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--fg-1);
  font-family: var(--font-mono);
  border: 1px solid transparent;
}
.range-tabs button:hover { color: var(--fg-0); }
.range-tabs button.active {
  background: var(--bg-2);
  color: var(--fg-0);
  border-color: var(--border);
}

/* === Charts grid === */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.grid-3 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

/* === Tables === */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.table th {
  text-align: left;
  font-weight: 500;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-2);
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-1);
  position: sticky;
  top: 0;
}
.table td {
  padding: 6px 14px;
  border-bottom: 1px solid var(--border-soft);
  height: 36px;
  vertical-align: middle;
}
.table tr:hover td { background: var(--bg-2); }
.table tr.editing td {
  background: var(--bg-2);
}
.table td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.table .row-actions {
  display: flex;
  gap: 2px;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.1s;
}
.table tr:hover .row-actions,
.table tr.editing .row-actions { opacity: 1; }

.cell-input {
  width: 100%;
  height: 26px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 8px;
  font-family: inherit;
  font-size: inherit;
}
.cell-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.cell-input.mono { font-family: var(--font-mono); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
  color: var(--fg-1);
  background: var(--bg-1);
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--fg-2); }
.chip.ok { color: var(--ok); border-color: rgba(34, 197, 94, 0.4); }
.chip.ok .dot { background: var(--ok); }
.chip.off { color: var(--fg-2); }
.chip.warn { color: var(--warn); border-color: rgba(245, 158, 11, 0.4); }
.chip.warn .dot { background: var(--warn); }

.toggle {
  width: 30px;
  height: 18px;
  border-radius: 999px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
  display: inline-block;
  vertical-align: middle;
  transition: background 0.12s;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--fg-2);
  transition: transform 0.15s, background 0.15s;
}
.toggle.on { background: var(--accent-soft); border-color: var(--accent-line); }
.toggle.on::after { transform: translateX(12px); background: var(--accent); }

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}
.tabs button {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--fg-1);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs button:hover { color: var(--fg-0); }
.tabs button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.tabs .spacer { flex: 1; }
.tabs .count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-2);
  margin-left: 6px;
}

.search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 10px;
  width: 240px;
}
.search input { flex: 1; }
.search svg { color: var(--fg-2); }

/* === Tweaks panel === */
.tweaks {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 280px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-card);
  z-index: 100;
  overflow: hidden;
}
.tweaks-h {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-soft);
  font-weight: 600;
  font-size: 12px;
}
.tweaks-h .spacer { flex: 1; }
.tweaks-body { padding: 12px; display: flex; flex-direction: column; gap: 14px; }
.tweak-row { display: flex; flex-direction: column; gap: 6px; }
.tweak-row .lbl { font-size: 11px; color: var(--fg-1); text-transform: uppercase; letter-spacing: 0.04em; }
.swatch-grid { display: flex; gap: 6px; }
.swatch {
  width: 28px; height: 28px;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
  position: relative;
}
.swatch.active::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1px solid var(--fg-0);
  border-radius: 8px;
}
.seg {
  display: flex;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
}
.seg button {
  flex: 1;
  padding: 4px 8px;
  font-size: 11px;
  color: var(--fg-1);
  border-radius: 4px;
  font-family: var(--font-mono);
}
.seg button.active { background: var(--bg-0); color: var(--fg-0); border: 1px solid var(--border); }

/* === Mini visuals === */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 11px;
  color: var(--fg-1);
  margin-top: 8px;
}
.legend .sw {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.legend .sw i {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.heatmap-cell {
  fill: var(--bg-2);
  stroke: var(--bg-0);
  stroke-width: 1;
}

.empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--fg-2);
  font-family: var(--font-mono);
  font-size: 12px;
}

.code-block {
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-1);
  overflow: auto;
  white-space: pre;
}
.code-block .k { color: var(--accent); }
.code-block .s { color: #f0d4a0; }
.code-block .c { color: var(--fg-2); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 999px; border: 2px solid var(--bg-0); }
::-webkit-scrollbar-thumb:hover { background: var(--border); }