:root {
  --bg: #0a0d12;
  --bg2: #0f1318;
  --bg3: #151b24;
  --border: #1e2a38;
  --accent: #00c8ff;
  --accent2: #0084a8;
  --green: #00e676;
  --red: #ff3d57;
  --yellow: #ffd740;
  --text: #c8d8e8;
  --text-muted: #4a6070;
  --text-bright: #e8f4ff;
  --font-mono: 'Share Tech Mono', monospace;
  --font-ui: 'Exo 2', sans-serif;
  --radius: 6px;
  --sidebar-w: 220px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Layout ── */
#app { display: flex; min-height: 100vh; }

#sidebar {
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.logo-icon { font-size: 24px; color: var(--accent); }
.logo-text  { font-size: 18px; font-weight: 700; color: var(--text-bright); letter-spacing: 1px; }
.logo-sub   { font-size: 10px; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; font-family: var(--font-mono); }

nav { padding: 16px 0; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all .15s;
  border-left: 2px solid transparent;
}
.nav-item:hover { color: var(--text); background: var(--bg3); }
.nav-item.active { color: var(--accent); border-left-color: var(--accent); background: rgba(0,200,255,.05); }
.nav-icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}
.status-dot.online  { background: var(--green); box-shadow: 0 0 6px var(--green); }
.status-dot.offline { background: var(--red); }

#main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#topbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.page-title { font-size: 16px; font-weight: 700; color: var(--text-bright); letter-spacing: 1px; }

.page { display: none; padding: 28px; }
.page.active { display: block; }

/* ── Stats ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent2);
}
.stat-card.running::before { background: var(--green); }
.stat-card.stopped::before { background: var(--yellow); }
.stat-card.ips::before     { background: var(--accent); }
.stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 8px; }
.stat-value { font-family: var(--font-mono); font-size: 36px; color: var(--text-bright); line-height: 1; }

/* ── Network Cards ── */
.network-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 12px; margin-bottom: 28px; }
.net-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.net-card-name  { font-weight: 700; color: var(--accent); font-size: 15px; margin-bottom: 8px; }
.net-card-stats { display: flex; gap: 16px; }
.net-stat { text-align: center; }
.net-stat-val { font-family: var(--font-mono); font-size: 22px; color: var(--text-bright); }
.net-stat-lbl { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* ── Tables ── */
.section-title { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); margin-bottom: 12px; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.data-table { width: 100%; border-collapse: collapse; background: var(--bg2); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.data-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(0,200,255,.03); }
.data-table td.nick { font-family: var(--font-mono); color: var(--accent); font-weight: 700; }
.data-table td.ip   { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }

/* ── Status Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge::before { content: '●'; font-size: 8px; }
.badge-running { background: rgba(0,230,118,.12); color: var(--green); }
.badge-stopped { background: rgba(255,215,64,.1);  color: var(--yellow); }
.badge-error   { background: rgba(255,61,87,.12);  color: var(--red); }
.badge-deleted { background: rgba(80,80,80,.2);    color: #555; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--accent2); color: #fff; }
.btn-primary:hover { background: var(--accent); color: #000; }
.btn-success { background: rgba(0,230,118,.15); color: var(--green); border: 1px solid rgba(0,230,118,.3); }
.btn-success:hover { background: var(--green); color: #000; }
.btn-danger  { background: rgba(255,61,87,.15); color: var(--red); border: 1px solid rgba(255,61,87,.3); }
.btn-danger:hover  { background: var(--red); color: #fff; }
.btn-ghost   { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover   { color: var(--text); border-color: var(--text-muted); }
.btn-warning { background: rgba(255,215,64,.15); color: var(--yellow); border: 1px solid rgba(255,215,64,.3); }
.btn-warning:hover { background: var(--yellow); color: #000; }
.btn-sm   { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; margin-top: 8px; }
.btn-icon { padding: 4px 8px; font-size: 13px; }
.action-group { display: flex; gap: 4px; }

/* ── Forms ── */
.input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  color: var(--text-bright);
  font-family: var(--font-ui);
  font-size: 13px;
  outline: none;
  transition: border-color .15s;
}
.input:focus { border-color: var(--accent2); }
.input::placeholder { color: var(--text-muted); }
select.input option { background: var(--bg3); }
textarea.input { resize: vertical; font-family: var(--font-mono); }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 5px; }
.form-group label small { text-transform: none; letter-spacing: 0; color: var(--accent2); }

/* ── Filter Bar ── */
.filter-bar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-bar .input { width: auto; flex: 1; min-width: 150px; }

/* ── Deploy Grid ── */
.deploy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.deploy-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.deploy-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 1px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ── Batch Preview ── */
.batch-preview {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  max-height: 200px;
  overflow-y: auto;
  color: var(--text-muted);
}
.batch-preview-item { padding: 3px 0; border-bottom: 1px solid rgba(255,255,255,.04); }
.batch-preview-item:last-child { border-bottom: none; }
.batch-ok  { color: var(--green); }
.batch-err { color: var(--red); }

/* ── IP Summary ── */
.ip-summary { margin-bottom: 16px; font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }

/* ── Install Steps ── */
.install-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 860px;
}
.install-step {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}
.step-num {
  width: 28px; height: 28px;
  background: var(--accent2);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 2px;
}
.step-content { flex: 1; }
.step-title { font-weight: 700; color: var(--text-bright); margin-bottom: 8px; }
.code-block {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  overflow-x: auto;
  white-space: pre;
  line-height: 1.6;
}
.text-muted { color: var(--text-muted); font-size: 12px; line-height: 1.5; margin-bottom: 8px; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 500px;
  max-width: 95vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-size: 15px; font-weight: 700; color: var(--text-bright); }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 18px; cursor: pointer; padding: 0 4px; }
.modal-close:hover { color: var(--red); }
.modal-body { padding: 20px; overflow-y: auto; }

/* ── Toast ── */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  min-width: 240px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn .2s ease;
  border-left: 3px solid var(--accent);
}
.toast.success { border-left-color: var(--green); }
.toast.error   { border-left-color: var(--red); }
.toast.warning { border-left-color: var(--yellow); }
@keyframes slideIn { from { transform: translateX(40px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent2); }

/* ── Checkbox ── */
input[type=checkbox] { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }

/* ── Server Stats ── */
.server-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.srv-stat {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.srv-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); margin-bottom: 6px; }
.srv-stat-value { font-family: var(--font-mono); font-size: 20px; color: var(--text-bright); }
.srv-stat-sub   { font-size: 10px; color: var(--text-muted); margin-top: 3px; font-family: var(--font-mono); }
.progress-bar   { height: 4px; background: var(--bg3); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.progress-fill  { height: 100%; border-radius: 2px; background: var(--accent); transition: width .5s; }
.progress-fill.warn { background: var(--yellow); }
.progress-fill.danger { background: var(--red); }