:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #282828;
  --muted: #4f4f4f;
  --accent: #1c7aa0;
  --accent-hover: #2a95be;
  --accent-dark: #2c698b;
  --accent-bright: #429dd0;
  --danger: #c0392b;
  --ok: #2a9d6e;
  --border: #d0d0d0;
  --nav: #343434;
  --footer: #222222;
  --glow: #f4f8fb;
  --shadow: 0 8px 24px rgba(40, 40, 40, 0.08);
  --hover-bg: rgba(28, 122, 160, 0.05);
  --section-bg: #f4f8fb;
  --code-bg: #1a3a4a;
  --radius: 0;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #1a1a1a;
  --panel: #2a2a2a;
  --text: #f4f4f4;
  --muted: #c8c8c8;
  --accent: #429dd0;
  --accent-hover: #6bb8de;
  --accent-dark: #2c698b;
  --accent-bright: #429dd0;
  --danger: #f07167;
  --ok: #4ade80;
  --border: #4a4a4a;
  --nav: #343434;
  --footer: #111111;
  --glow: #242424;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  --hover-bg: rgba(66, 157, 208, 0.08);
  --section-bg: #222222;
  --code-bg: #111111;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Raleway', 'Segoe UI', sans-serif;
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
main { flex: 1 0 auto; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s ease; }
a:hover, a:focus { color: var(--accent-hover); text-decoration: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: 'Raleway', 'Segoe UI', sans-serif;
  font-weight: 600;
  color: var(--text);
}

.sf-nav {
  position: relative;
  z-index: 50;
  background: var(--nav);
  color: #fff;
  border: 0;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.26);
}
.sf-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 18px;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.sf-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff !important;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.sf-brand img { display: block; }
.sf-nav-links {
  display: flex;
  align-items: center;
  gap: 8px 14px;
  flex-wrap: wrap;
}
.sf-nav-links > a:not(.btn) {
  color: #fff;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 8px 0;
}
.sf-nav-links > a:not(.btn):hover { color: #429dd0; }
.sf-nav .user { font-size: 0.88rem; color: #d0d0d0; }

.btn {
  display: inline-block;
  padding: 0.65rem 1.15rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-sm { padding: 7px 12px; font-size: 0.78rem; }
.btn-primary { background: var(--accent-dark); color: #fff; }
.btn-primary:hover, .btn-primary:focus { background: var(--accent-bright); color: #fff; }
.btn-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.btn-secondary:hover { border-color: #429dd0; color: #429dd0; }
main .btn-secondary, .card .btn-secondary {
  color: var(--text);
  border-color: var(--border);
}
main .btn-secondary:hover, .card .btn-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.btn-danger { background: var(--danger); color: #fff; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.sf-sidebar {
  --sf-sidebar-width: 272px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sf-sidebar-width);
  z-index: 40;
  overflow: hidden;
  background: var(--panel);
  border-right: 1px solid var(--border);
}
.sf-sidebar-toggle {
  display: none;
  width: 100%;
  text-align: left;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
}
.sf-sidebar-nav {
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 12px 10px 24px;
}
.sf-sidebar-list { list-style: none; margin: 0; padding: 0; }
.sf-sidebar-top {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.sf-sidebar-section { margin-top: 8px; }
.sf-sidebar-section-title {
  display: block;
  padding: 7px 6px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.sf-sidebar-link {
  display: block;
  padding: 6px 8px;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.35;
  border-radius: 4px;
}
.sf-sidebar-link:hover,
.sf-sidebar-link:focus {
  color: var(--accent);
  background: var(--hover-bg);
}
.sf-sidebar-link.is-active {
  color: var(--accent);
  background: var(--hover-bg);
  font-weight: 600;
}
.sf-sidebar-endpoint {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.68rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 400;
}

body.has-sidebar {
  --sf-sidebar-rail: 272px;
  padding-left: var(--sf-sidebar-rail);
}
body.has-sidebar .sf-nav {
  margin-left: calc(-1 * var(--sf-sidebar-rail));
  width: calc(100% + var(--sf-sidebar-rail));
}
body.has-sidebar .sf-footer {
  margin-left: calc(-1 * var(--sf-sidebar-rail));
  width: calc(100% + var(--sf-sidebar-rail));
}

@media (max-width: 1100px) {
  body.has-sidebar { padding-left: 0; }
  body.has-sidebar .sf-nav,
  body.has-sidebar .sf-footer {
    margin-left: 0;
    width: auto;
  }
  .sf-sidebar {
    position: relative;
    top: auto !important;
    left: auto;
    bottom: auto;
    width: auto;
    height: auto;
    max-height: none;
    z-index: 30;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .sf-sidebar-toggle { display: block; }
  .sf-sidebar-nav {
    display: none;
    height: auto;
    max-height: min(70vh, 560px);
  }
  .sf-sidebar.is-open .sf-sidebar-nav { display: block; }
}

.page-main {
  max-width: 1280px;
  margin: 1.25rem auto 2rem;
  padding: 0 1.5rem 2rem;
  width: 100%;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
}
h1 { margin: 0 0 0.35rem; font-size: 1.55rem; }
.subtitle { margin: 0 0 1.25rem; color: var(--muted); font-size: 0.92rem; }
.msg {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border-left: 4px solid var(--accent);
  font-size: 0.9rem;
}
.msg-error { background: #fdecea; color: var(--danger); border-left-color: var(--danger); }
.msg-info { background: var(--section-bg); color: var(--accent-dark); border-left-color: var(--accent-bright); }
.msg-ok { background: #e8f6ef; color: var(--ok); border-left-color: var(--ok); }
:root[data-theme="dark"] .msg-error { background: rgba(192, 57, 43, 0.18); }
:root[data-theme="dark"] .msg-ok { background: rgba(42, 157, 110, 0.18); }

.sf-footer {
  flex-shrink: 0;
  background: var(--footer);
  color: #fff;
  padding: 28px 18px;
  margin-top: auto;
  font-size: 0.92rem;
}
.sf-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.sf-footer a { color: #fff; }
.sf-footer a:hover { color: #429dd0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}
.stat {
  background: var(--section-bg);
  border-left: 3px solid var(--accent);
  padding: 0.85rem 1rem;
}
.stat .label {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat .value {
  font-size: 1.45rem;
  font-weight: 700;
  margin-top: 0.15rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin-bottom: 1rem;
}
.field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 180px; flex: 1; }
.field label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.field input,
.field select,
.field textarea {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}
.field textarea {
  min-height: 140px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-bright);
}

.chart-wrap {
  position: relative;
  width: 100%;
  min-height: 360px;
}
.chart-wrap canvas { width: 100% !important; max-height: 480px; }
.table-wrap { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
table.data th,
table.data td {
  border-bottom: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  text-align: left;
  vertical-align: top;
}
table.data th {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
}
table.data tr:hover td { background: var(--hover-bg); }
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
}
.endpoint-map {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}
.endpoint-card {
  border: 1px solid var(--border);
  background: var(--section-bg);
  padding: 0.85rem 1rem;
}
.endpoint-card h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}
.endpoint-card code {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  margin-bottom: 0.45rem;
}
.muted { color: var(--muted); }
.raw-panel {
  margin-top: 1rem;
  max-height: 240px;
  overflow: auto;
  background: var(--code-bg);
  color: #e8f1f6;
  padding: 0.85rem 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  white-space: pre-wrap;
}
.login-shell {
  max-width: 420px;
  margin: 3rem auto;
}
.login-shell label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.login-shell input {
  width: 100%;
  padding: 0.65rem 0.8rem;
  margin-bottom: 0.85rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}
.login-shell input:focus {
  outline: none;
  border-color: var(--accent-bright);
}