:root {
  --gold: #f5a623;
  --navy: #1c3254;
  --dark: #0d1a2d;
  --darker: #081220;
  --surface: #112037;
  --card: #162840;
  --border: #1e3454;
  --text: #e2e8f0;
  --muted: #7a93b0;
  --sidebar-w: 260px;
  --header-h: 60px;
}

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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--darker);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ───────────────────────────────────────────── */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--dark);
  border-bottom: 2px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 200;
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

#header .logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  cursor: pointer;
}

#header .logo img {
  height: 28px;
  mix-blend-mode: screen;
}

#header .logo-sep {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,0.2);
}

#header .logo-sub {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

#header .header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.lang-btn.active {
  background: rgba(245,166,35,0.15);
  border-color: rgba(245,166,35,0.5);
  color: var(--gold);
}

.lang-btn:hover:not(.active) {
  border-color: var(--muted);
  color: var(--text);
}

/* Editor language tabs */
.ed-lang-tab {
  padding: 5px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  transition: all .15s;
  position: relative;
}
.ed-lang-tab.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(245,166,35,.12);
}
.ed-lang-tab:hover:not(.active) { border-color: var(--muted); color: var(--text); }
.ed-lang-tab .ed-tab-dot {
  position: absolute;
  top: 3px; right: 3px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  display: none;
}
.ed-lang-tab.has-content .ed-tab-dot { display: block; }

.ed-lang-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0 14px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.ed-lang-bar-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-right: 4px;
}

.admin-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.admin-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── Sidebar ──────────────────────────────────────────── */
#sidebar {
  position: fixed;
  top: var(--header-h);
  left: 0;
  width: var(--sidebar-w);
  bottom: 0;
  background: var(--dark);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  z-index: 100;
  padding: 1.5rem 0;
}

#sidebar::-webkit-scrollbar { width: 4px; }
#sidebar::-webkit-scrollbar-track { background: transparent; }
#sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.nav-section {
  padding: 0 1rem;
  margin-bottom: 1.5rem;
}

.nav-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 0 0.5rem;
  margin-bottom: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid transparent;
}

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

.nav-item.active {
  background: rgba(245,166,35,0.1);
  border-color: rgba(245,166,35,0.25);
  color: var(--gold);
}

.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-item .nav-title { flex: 1; }

/* ── Sidebar Tree / Categories ────────────────────────── */
.nav-cat-row {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 8px 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  transition: all 0.15s;
  border: 1px solid transparent;
  position: relative;
}
.nav-cat-row:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.nav-cat-row.active { background: rgba(245,166,35,0.1); border-color: rgba(245,166,35,0.25); color: var(--gold); }

.nav-toggle {
  font-size: 9px;
  width: 14px;
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-toggle.open { transform: rotate(90deg); }

.nav-children {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease;
  padding-left: 22px;
}
.nav-children.open { max-height: 2000px; }

/* 3rd level indent */
.nav-children .nav-children { padding-left: 16px; }

.nav-cat-add {
  display: none;
  margin-left: auto;
  flex-shrink: 0;
  width: 20px; height: 20px;
  border-radius: 4px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-cat-row:hover .nav-cat-add { display: flex; }
.nav-cat-add:hover { background: rgba(245,166,35,0.15); border-color: var(--gold); color: var(--gold); }

.nav-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.5rem;
  margin-bottom: 6px;
}
.nav-section-header .nav-label { margin-bottom: 0; }
.nav-section-add {
  width: 22px; height: 22px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.nav-section-add:hover { border-color: var(--gold); color: var(--gold); background: rgba(245,166,35,0.1); }

/* Quick-add popup */
.quick-add-popup {
  position: fixed;
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  z-index: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  min-width: 200px;
}
.quick-add-popup .qap-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px 8px;
  display: block;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.quick-add-popup button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  text-align: left;
}
.quick-add-popup button:hover { background: rgba(245,166,35,0.1); color: var(--gold); }

/* Category page children grid */
.cat-children-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.cat-child-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.15s, background 0.15s;
}
.cat-child-card:hover { border-color: var(--gold); background: rgba(245,166,35,0.05); }
.cat-child-icon { font-size: 22px; }
.cat-child-title { font-weight: 600; font-size: 14px; }
.cat-child-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── Main Content ─────────────────────────────────────── */
#main {
  margin-left: var(--sidebar-w);
  margin-top: var(--header-h);
  min-height: calc(100vh - var(--header-h));
  padding: 2.5rem 2rem;
  max-width: calc(1200px + var(--sidebar-w));
}

/* ── Home Page ────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #112947 50%, var(--darker) 100%);
  padding: 56px 2rem 48px;
  text-align: center;
  border-radius: 16px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 500px; height: 300px;
  background: radial-gradient(ellipse, rgba(245,166,35,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero img {
  height: 64px;
  mix-blend-mode: screen;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 8px;
}

.hero h1 span { color: var(--gold); }

.section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 20px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--c, var(--gold));
  border-radius: 12px 0 0 12px;
  opacity: 0;
  transition: opacity 0.2s;
}

.card:hover {
  border-color: var(--c, var(--gold));
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.card:hover::before { opacity: 1; }

.card-head { display: flex; align-items: flex-start; gap: 12px; }

.card-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(245,166,35,0.1);
  border: 1px solid rgba(245,166,35,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.card-title { font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.card-sub { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.card-desc { font-size: 13px; color: var(--muted); line-height: 1.6; }

.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.tag {
  font-size: 11px; padding: 2px 9px;
  border-radius: 20px;
  background: rgba(255,255,255,0.05);
  color: var(--muted);
  border: 1px solid var(--border);
}

/* Quick Grid */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 40px;
}

.quick-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: border-color 0.2s, background 0.2s;
}

.quick-card:hover {
  border-color: var(--gold);
  background: rgba(245,166,35,0.06);
}

.quick-icon { font-size: 18px; width: 32px; text-align: center; flex-shrink: 0; }
.quick-label { font-size: 13px; font-weight: 600; }
.quick-sub { font-size: 11px; color: var(--muted); }

/* ── Content Page ─────────────────────────────────────── */
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.page-icon-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
}

.page-big-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  background: rgba(245,166,35,0.1);
  border: 1px solid rgba(245,166,35,0.2);
  flex-shrink: 0;
}

.page-title { font-size: 2rem; font-weight: 800; }
.page-subtitle { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }

.page-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.section-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

.section-block h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.section-content { font-size: 14px; line-height: 1.8; color: var(--text); }
.section-content p { margin-bottom: 10px; }
.section-content h3 { font-size: 15px; font-weight: 600; margin: 16px 0 8px; color: var(--text); }
.section-content ul, .section-content ol { padding-left: 1.5rem; margin-bottom: 10px; }
.section-content li { margin-bottom: 4px; }
.section-content table { width: 100%; border-collapse: collapse; margin: 12px 0; }
.section-content th { background: var(--surface); color: var(--gold); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; padding: 10px 12px; text-align: left; border: 1px solid var(--border); }
.section-content td { padding: 9px 12px; border: 1px solid var(--border); font-size: 13px; }
.section-content tr:hover td { background: rgba(255,255,255,0.03); }
.section-content code { background: var(--surface); border: 1px solid var(--border); padding: 1px 6px; border-radius: 4px; font-size: 12px; font-family: monospace; }
.section-content pre { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px; overflow-x: auto; margin: 12px 0; }
.section-content pre code { background: none; border: none; padding: 0; font-size: 13px; }
.section-content a { color: var(--gold); }
.section-content strong { color: var(--text); font-weight: 600; }

/* ── Edit Button (floating) ───────────────────────────── */
.edit-fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--darker);
  border: none;
  font-size: 20px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(245,166,35,0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  z-index: 150;
}

.edit-fab:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(245,166,35,0.6); }

/* ── Modal ────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 500;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}

.modal {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%; max-width: 860px;
  max-height: 90vh;
  display: flex; flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}

.modal-header h2 { font-size: 18px; font-weight: 700; }

.modal-body { padding: 24px; overflow-y: auto; flex: 1; }

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end;
  flex-shrink: 0;
}

/* ── Forms ────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; display: block; margin-bottom: 8px; }

.form-input, .form-select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
}

.form-input:focus, .form-select:focus { border-color: var(--gold); }
.form-select option { background: var(--dark); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* Quill editor override */
.ql-toolbar { background: var(--surface) !important; border: 1px solid var(--border) !important; border-radius: 8px 8px 0 0 !important; }
.ql-toolbar .ql-stroke { stroke: var(--muted) !important; }
.ql-toolbar .ql-fill { fill: var(--muted) !important; }
.ql-toolbar button:hover .ql-stroke, .ql-toolbar button.ql-active .ql-stroke { stroke: var(--gold) !important; }
.ql-toolbar button:hover .ql-fill, .ql-toolbar button.ql-active .ql-fill { fill: var(--gold) !important; }
.ql-toolbar .ql-picker-label { color: var(--muted) !important; }
.ql-container { background: var(--card) !important; border: 1px solid var(--border) !important; border-top: none !important; border-radius: 0 0 8px 8px !important; min-height: 200px; }
.ql-editor { color: var(--text) !important; font-size: 14px !important; line-height: 1.8 !important; }
.ql-editor.ql-blank::before { color: var(--muted) !important; }
.ql-editor p { margin-bottom: 8px; }

/* Sections editor */
.sections-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 14px; }

.section-editor-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.section-editor-item .section-top {
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
}

.section-editor-item .section-top input {
  flex: 1;
}

/* Buttons */
.btn {
  padding: 9px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-family: inherit;
}

.btn-primary { background: var(--gold); color: var(--darker); }
.btn-primary:hover { background: #e09820; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--muted); }
.btn-danger { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { background: transparent; border: 1px solid var(--border); color: var(--muted); width: 32px; height: 32px; border-radius: 6px; cursor: pointer; font-size: 14px; display:flex; align-items:center; justify-content:center; }
.btn-icon:hover { border-color: var(--muted); color: var(--text); }

/* ── Login Modal ─────────────────────────────────────── */
.login-modal {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%; max-width: 380px;
  text-align: center;
}

.login-modal img { height: 40px; mix-blend-mode: screen; margin-bottom: 24px; }
.login-modal h2 { font-size: 20px; margin-bottom: 6px; }
.login-modal p { color: var(--muted); font-size: 13px; margin-bottom: 24px; }

/* ── Toast ────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--navy);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 999;
  transition: transform 0.3s;
  pointer-events: none;
}

#toast.show { transform: translateX(-50%) translateY(0); }
#toast.success { border-color: #22c55e; color: #22c55e; }
#toast.error { border-color: #ef4444; color: #ef4444; }

/* ── Topology Diagram ─────────────────────────────────────── */
.topo-canvas {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  min-height: 120px;
  overflow: visible;
}

.topo-svg-overlay {
  position: absolute;
  top: 0; left: 0;
  pointer-events: none;
  overflow: visible;
}

.topo-rows {
  display: flex;
  flex-direction: column;
  gap: 36px;
  position: relative;
  z-index: 1;
}

.topo-row { display: flex; flex-wrap: wrap; gap: 14px; }

.topo-row-label {
  font-size: 10px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}

.topo-node {
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  min-width: 150px; max-width: 210px;
}

.topo-node.type-switch { border-color: rgba(14,165,233,0.55); }
.topo-node.type-server { border-color: rgba(245,166,35,0.55);  }
.topo-node.type-camera { border-color: rgba(34,197,94,0.55);   }
.topo-node.type-other  { border-color: var(--border); }

.topo-node-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.topo-node-icon { font-size: 18px; flex-shrink: 0; }
.topo-node-name { font-weight: 700; font-size: 13px; color: var(--text); word-break: break-word; }

.topo-type-badge {
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px;
}
.topo-node.type-switch .topo-type-badge { color: #0ea5e9; }
.topo-node.type-server .topo-type-badge { color: var(--gold); }
.topo-node.type-camera .topo-type-badge { color: #22c55e; }
.topo-node.type-other  .topo-type-badge { color: var(--muted); }

.topo-node-ip    { font-size: 12px; color: var(--muted); font-family: 'Consolas', monospace; }
.topo-node-model { font-size: 11px; color: var(--muted); margin-top: 2px; }

.topo-port-badge {
  display: inline-block; background: var(--surface);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 6px; font-size: 11px; font-family: monospace;
  color: var(--muted); margin-top: 5px;
}

.topo-vm-badge { font-size: 11px; color: var(--gold); margin-top: 4px; opacity: 0.85; }

.topo-empty { text-align: center; padding: 40px 20px; color: var(--muted); }
.topo-empty-icon { font-size: 32px; margin-bottom: 10px; }

.topo-device-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); margin-bottom: 8px;
  background: var(--surface); transition: border-color 0.15s;
}
.topo-device-row:hover { border-color: var(--muted); }
.topo-device-icon { font-size: 18px; width: 24px; text-align: center; flex-shrink: 0; }
.topo-device-info { flex: 1; }
.topo-device-name { font-weight: 600; font-size: 13px; }
.topo-device-meta { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  #sidebar { transform: translateX(-260px); transition: transform 0.3s; width: 260px; }
  #sidebar.open { transform: translateX(0); }
  #main { margin-left: 0; padding: 1.5rem 1rem; }
  .form-row { grid-template-columns: 1fr; }
}