/* ── Base ─────────────────────────────────────────────────── */
:root {
  --bg-primary:   #0d1117;
  --bg-secondary: #161b22;
  --bg-card:      #1c2230;
  --bg-input:     #0d1117;
  --border:       #30363d;
  --accent:       #1f6feb;
  --accent-light: #58a6ff;
  --green:        #3fb950;
  --red:          #f85149;
  --yellow:       #d29922;
  --text-primary: #e6edf3;
  --text-muted:   #8b949e;
  --sidebar-w:    168px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body, html {
  background: var(--bg-primary) !important;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  height: 100%;
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Sidebar ──────────────────────────────────────────────── */
#sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  padding: 0 0 16px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px 24px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo-icon {
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

.sidebar-logo-text { font-weight: 700; font-size: 13px; line-height: 1.3; }
.sidebar-logo-sub  { font-size: 10px; color: var(--text-muted); }

.sidebar-nav { flex: 1; padding: 12px 8px; display: flex; flex-direction: column; gap: 2px; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--text-muted) !important;
  text-decoration: none !important;
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}

.nav-link:hover { background: rgba(255,255,255,0.06); color: var(--text-primary) !important; }
.nav-link.active { background: var(--accent); color: #fff !important; }

.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}

.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6e40c9, #1f6feb);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.avatar-name  { font-size: 12px; font-weight: 600; }
.avatar-role  { font-size: 10px; color: var(--text-muted); }

/* ── Main content ─────────────────────────────────────────── */
#page-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-primary);
  padding: 28px 32px;
}

/* ── Cards ────────────────────────────────────────────────── */
.cl-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
}

.stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .6px; }
.stat-value { font-size: 28px; font-weight: 700; margin: 4px 0 2px; }
.stat-delta { font-size: 11px; }
.stat-delta.up   { color: var(--green); }
.stat-delta.down { color: var(--red); }

/* ── Status badges ────────────────────────────────────────── */
.badge-active  { background: rgba(63,185,80,.15); color: var(--green); border: 1px solid rgba(63,185,80,.3); border-radius: 12px; padding: 2px 10px; font-size: 11px; }
.badge-idle    { background: rgba(210,153,34,.15); color: var(--yellow); border: 1px solid rgba(210,153,34,.3); border-radius: 12px; padding: 2px 10px; font-size: 11px; }
.badge-offline { background: rgba(248,81,73,.15);  color: var(--red);    border: 1px solid rgba(248,81,73,.3);  border-radius: 12px; padding: 2px 10px; font-size: 11px; }

/* ── Page header ──────────────────────────────────────────── */
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.page-sub   { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  background: var(--accent) !important;
  border: none !important;
  color: #fff !important;
  border-radius: 6px !important;
  font-size: 13px !important;
  padding: 7px 16px !important;
  cursor: pointer !important;
}
.btn-primary:hover { background: #1a5fcc !important; }

.btn-outline {
  background: transparent !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  border-radius: 6px !important;
  font-size: 13px !important;
  padding: 7px 16px !important;
  cursor: pointer !important;
}
.btn-outline:hover { background: rgba(255,255,255,.06) !important; }

.btn-danger {
  background: var(--red) !important;
  border: none !important;
  color: #fff !important;
  border-radius: 6px !important;
  font-size: 13px !important;
  padding: 7px 16px !important;
  cursor: pointer !important;
}

/* ── Inputs ───────────────────────────────────────────────── */
.cl-input {
  background: var(--bg-input) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  color: var(--text-primary) !important;
  font-size: 13px !important;
  padding: 8px 12px !important;
  width: 100%;
  outline: none;
}
.cl-input:focus { border-color: var(--accent) !important; }
.cl-input::placeholder { color: var(--text-muted) !important; }

.cl-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }

/* ── Table ────────────────────────────────────────────────── */
.cl-table { width: 100%; border-collapse: collapse; }
.cl-table th {
  font-size: 10px; text-transform: uppercase; letter-spacing: .6px;
  color: var(--text-muted); padding: 10px 14px;
  border-bottom: 1px solid var(--border); text-align: left;
}
.cl-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(48,54,61,.5);
  font-size: 13px; vertical-align: middle;
}
.cl-table tr:hover td { background: rgba(255,255,255,.03); }
.cl-table tr:last-child td { border-bottom: none; }

/* ── Login page ───────────────────────────────────────────── */
#login-page {
  min-height: 100vh;
  display: flex;
  background: var(--bg-primary);
}

.login-left {
  flex: 1;
  display: flex; flex-direction: column; justify-content: center;
  padding: 60px;
  background: linear-gradient(135deg, #0d1117 60%, #0f1f3d);
}

.login-right {
  width: 480px;
  display: flex; flex-direction: column; gap: 24px;
  justify-content: center;
  padding: 48px 40px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
}

.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.login-brand-icon {
  width: 44px; height: 44px;
  background: var(--accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}

.login-headline { font-size: 36px; font-weight: 800; line-height: 1.15; margin-bottom: 16px; }
.login-headline span { color: var(--accent-light); }
.login-tagline { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 32px; }

.login-feature { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 13px; color: var(--text-muted); }
.login-feature-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-light); flex-shrink: 0; }

.login-form-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.login-form-title { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.login-form-sub   { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }

.login-btn {
  width: 100%;
  background: var(--accent);
  border: none;
  color: #fff;
  border-radius: 6px;
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 16px;
}
.login-btn:hover { background: #1a5fcc; }

.login-error { color: var(--red); font-size: 12px; margin-top: 8px; }

/* ── Floor plan ───────────────────────────────────────────── */
.floor-plan-wrap {
  background: #111827;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

/* ── Router card ──────────────────────────────────────────── */
.router-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  position: relative;
}
.router-card-status {
  position: absolute; top: 12px; right: 12px;
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  padding: 2px 8px; border-radius: 10px;
}
.router-card-name { font-weight: 700; font-size: 15px; margin: 8px 0 2px; }
.router-card-loc  { font-size: 11px; color: var(--text-muted); margin-bottom: 12px; }
.router-card-meta { display: flex; gap: 20px; margin-bottom: 14px; }
.router-card-meta-item { font-size: 11px; color: var(--text-muted); }
.router-card-meta-val  { font-size: 13px; font-weight: 600; color: var(--text-primary); }

/* ── Section header ───────────────────────────────────────── */
.section-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.section-title { font-size: 14px; font-weight: 600; }
.section-sub   { font-size: 12px; color: var(--text-muted); }

/* ── Alert toast ──────────────────────────────────────────── */
.alert-success { background: rgba(63,185,80,.12); border: 1px solid rgba(63,185,80,.3); color: var(--green); border-radius: 6px; padding: 10px 14px; font-size: 13px; }
.alert-error   { background: rgba(248,81,73,.12);  border: 1px solid rgba(248,81,73,.3);  color: var(--red);   border-radius: 6px; padding: 10px 14px; font-size: 13px; }

/* ── System online badge ──────────────────────────────────── */
.system-online { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--green); }
.system-online::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); display: inline-block; }

/* ── Plotly chart overrides ───────────────────────────────── */
.js-plotly-plot .plotly .modebar { display: none !important; }

/* ── Dash Dropdown dark theme ─────────────────────────────── */
.Select-control {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  color: var(--text-primary) !important;
}
.Select-control:hover { border-color: var(--accent) !important; }
.Select-placeholder, .Select-value-label { color: var(--text-muted) !important; }
.Select-arrow { border-top-color: var(--text-muted) !important; }
.Select-menu-outer {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  box-shadow: 0 8px 24px rgba(0,0,0,.4) !important;
  z-index: 999 !important;
}
.Select-option {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
  font-size: 13px !important;
}
.Select-option:hover, .Select-option.is-focused {
  background: rgba(31,111,235,.2) !important;
  color: var(--accent-light) !important;
}
.Select-option.is-selected { background: var(--accent) !important; color: #fff !important; }
.Select-input input { color: var(--text-primary) !important; background: transparent !important; }
.has-value.Select--single > .Select-control .Select-value .Select-value-label {
  color: var(--text-primary) !important;
}

/* ── Three-dot context menu ───────────────────────────────── */
.ctx-menu {
  position: absolute;
  right: 0; top: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  z-index: 400;
  min-width: 150px;
  overflow: hidden;
}
.ctx-menu-item {
  padding: 10px 16px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-primary);
}
.ctx-menu-item:hover { background: rgba(255,255,255,.06); }
.ctx-menu-item.danger { color: var(--red); }
.ctx-wrap { position: relative; display: inline-block; }