:root {
  --bg: #070a0d;
  --surface: #0f1419;
  --elevated: #151c24;
  --border: #243040;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #38bdf8;
  --accent-hover: #7dd3fc;
  --ok: #4ade80;
  --ok-bg: rgba(74, 222, 128, 0.1);
  --err: #f87171;
  --err-bg: rgba(248, 113, 113, 0.1);
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 1000px var(--surface) inset !important;
  box-shadow: 0 0 0 1000px var(--surface) inset !important;
  -webkit-text-fill-color: var(--text) !important;
  caret-color: var(--text);
  border: 1px solid var(--border) !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.55;
  background:
    radial-gradient(ellipse 100% 80% at 100% 0%, rgba(56, 189, 248, 0.07), transparent 55%),
    radial-gradient(ellipse 70% 50% at 0% 100%, rgba(99, 102, 241, 0.05), transparent 50%),
    var(--bg);
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 2rem) 3rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.25rem;
  padding: 0.6rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.75rem;
}

.nav-brand {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  padding: 0.35rem 0.6rem;
  margin-left: 0.25rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav a.is-active {
  color: var(--accent);
  background: rgba(56, 189, 248, 0.12);
}

.nav-out {
  margin-inline-start: auto;
  color: var(--muted);
}

.page-head {
  margin-bottom: 1.5rem;
}

.page-head h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.card {
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.45rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}

label {
  display: block;
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.88rem;
  color: #c5d0dc;
}

label:first-of-type,
.card label:first-child {
  margin-top: 0;
}

input[type="text"],
input[type="url"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea {
  width: 100%;
  max-width: 100%;
  margin-top: 0.4rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text) !important;
  background-color: var(--surface) !important;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select {
  width: 100%;
  max-width: 100%;
  margin-top: 0.4rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.25rem;
  padding: 0.7rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  color: #041018;
  background: linear-gradient(165deg, var(--accent-hover), var(--accent));
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease;
}

.btn:hover {
  filter: brightness(1.06);
}

.btn:active {
  transform: scale(0.98);
}

.btn-block {
  width: 100%;
  max-width: none;
  align-self: stretch;
}

.form-stack {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 100%;
}

.form-stack--narrow {
  max-width: min(100%, 26rem);
}

.form-stack .btn {
  width: 100%;
  max-width: none;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.card .section-title {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.btn-ghost {
  background: var(--border);
  color: var(--text);
}

.btn-danger {
  background: linear-gradient(165deg, #b91c1c, #7f1d1d);
  color: #fecaca;
}

.alert {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-size: 0.9rem;
}

.alert-err {
  background: var(--err-bg);
  border: 1px solid rgba(248, 113, 113, 0.25);
  color: var(--err);
}

.alert-ok {
  background: var(--ok-bg);
  border: 1px solid rgba(74, 222, 128, 0.25);
  color: var(--ok);
}

.mono {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.82rem;
  word-break: break-all;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

th,
td {
  padding: 0.65rem 0.75rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: var(--surface);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tr:last-child td {
  border-bottom: 0;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
}

.badge-ok {
  background: rgba(74, 222, 128, 0.15);
  color: var(--ok);
}

.badge-no {
  background: rgba(248, 113, 113, 0.15);
  color: var(--err);
}

.muted {
  color: var(--muted);
  font-size: 0.82rem;
}

pre {
  margin: 0.5rem 0 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.78rem;
  color: var(--muted);
}

code {
  font-size: 0.85em;
  color: var(--accent);
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: 0.75rem 1.25rem;
  align-items: start;
}

.form-grid label {
  margin-top: 0;
  padding-top: 0.5rem;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  color: #cbd5e1;
}

.section-title:first-child {
  margin-top: 0;
}

.rule-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
  margin-top: 0.85rem;
  background: var(--surface);
}

.rule-card h3 {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
}

.rule-inner {
  display: grid;
  grid-template-columns: minmax(140px, 180px) 1fr;
  gap: 0.5rem 0.85rem;
  align-items: start;
}

.rule-inner label {
  margin-top: 0;
  padding-top: 0.35rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
}

textarea.ta-patterns {
  min-height: 88px;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
}

textarea.ta-small {
  min-height: 52px;
}

.chk {
  width: auto !important;
  max-width: none;
  margin-left: 0.35rem;
}

details.raw-json {
  margin-top: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
}

details.raw-json summary {
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
}

details.raw-json pre {
  margin: 0;
  padding: 1rem;
  background: #0a0d11;
  border-top: 1px solid var(--border);
  max-height: 320px;
  overflow: auto;
}

.login-page {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 1.5rem;
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.02em;
}

.login-card .btn {
  width: 100%;
  margin-top: 1.5rem;
}

.sessions-table {
  margin-top: 0.5rem;
}

.sessions-table table {
  min-width: 920px;
  table-layout: auto;
}

.sessions-table th {
  text-transform: none;
  letter-spacing: 0.02em;
}

.sessions-table td,
.sessions-table th {
  vertical-align: middle;
}

.sessions-table td input[type="text"],
.sessions-table td input[type="email"],
.sessions-table td input[type="password"] {
  margin-top: 0;
  width: 100%;
  min-width: 5.5rem;
  max-width: none;
  font-size: 0.8rem;
  padding: 0.45rem 0.55rem;
  box-sizing: border-box;
}

.sessions-table td input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.sessions-table .cell-status {
  min-width: 11rem;
  max-width: 18rem;
}

.sessions-table td.cell-actions {
  min-width: 6.75rem;
  vertical-align: top;
}

.sessions-table .session-delete-form {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.45rem;
  margin: 0;
}

.sessions-table .session-delete-form label {
  margin: 0;
  font-weight: 500;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  color: var(--muted);
}

.sessions-table .health-form {
  display: block;
  margin-top: 0.45rem;
}

.log-table {
  min-width: 760px;
  table-layout: auto;
}

.log-table th {
  text-transform: none;
  letter-spacing: 0.02em;
}

.log-table th,
.log-table td {
  vertical-align: top;
}

.log-table .col-num {
  width: 3rem;
  white-space: nowrap;
}

.log-table .col-time {
  white-space: nowrap;
}

.log-table .col-pid {
  white-space: nowrap;
}

.log-table .col-code {
  max-width: 8rem;
  word-break: break-all;
}

.log-table .col-result {
  width: 4rem;
  white-space: nowrap;
}

.log-table .col-status {
  white-space: nowrap;
  direction: ltr;
  text-align: left;
  unicode-bidi: isolate;
  font-variant-numeric: tabular-nums;
}

.log-table .col-msg {
  min-width: 12rem;
  max-width: 22rem;
}


.btn-sm {
  padding: 0.3rem 0.55rem;
  font-size: 0.72rem;
  margin-top: 0.35rem;
  background: var(--border);
  color: var(--text);
}

.btn-sm.btn-danger {
  background: #7f1d1d;
  color: #fecaca;
}

.hb {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.hb-blocked {
  background: rgba(248, 113, 113, 0.15);
  color: var(--err);
}

.hb-ok {
  background: rgba(74, 222, 128, 0.15);
  color: var(--ok);
}

.hb-none {
  color: var(--muted);
  font-size: 0.82rem;
}

.health-meta {
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 0.35rem;
  max-width: 280px;
  line-height: 1.4;
}

.stack-gap {
  margin-top: 1.5rem;
}