:root {
  --sidebar-w: 260px;
  --bg: #f1f5f9;
  --card: #fff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --danger: #dc2626;
  --success: #16a34a;
  --warn: #d97706;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.login-card { background: var(--card); border-radius: 16px; padding: 36px; width: min(400px, 100%); box-shadow: 0 24px 60px rgba(0,0,0,.35); }
.login-brand { text-align: center; margin-bottom: 24px; }
.brand-icon { font-size: 2rem; margin-bottom: 8px; }
.login-brand h1 { font-size: 1.4rem; }
.login-brand p { color: var(--muted); font-size: .9rem; }
.login-form label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; }
.login-form input { width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 14px; }
.login-form button { width: 100%; padding: 12px; background: var(--accent); color: #fff; border: none; border-radius: 8px; font-weight: 700; cursor: pointer; }
.login-hint { margin-top: 16px; font-size: .78rem; color: var(--muted); text-align: center; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); background: #0f172a; color: #e2e8f0; position: fixed; inset: 0 auto 0 0; z-index: 200;
  display: flex; flex-direction: column; overflow-y: auto; transition: transform .25s ease;
}
.sidebar-brand { padding: 20px; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand-row { display: flex; gap: 12px; align-items: center; }
.sidebar-brand h1 { font-size: 1rem; color: #fff; }
.sidebar-brand p { font-size: .75rem; color: #94a3b8; }
.sidebar-nav { padding: 12px 10px; flex: 1; }
.nav-section { font-size: .65rem; text-transform: uppercase; letter-spacing: .08em; color: #64748b; padding: 12px 12px 6px; font-weight: 700; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin-bottom: 3px; border-radius: 8px;
  color: #cbd5e1; text-decoration: none; font-size: .9rem; font-weight: 500; transition: background .15s;
}
.nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-link.active { background: var(--accent); color: #fff; }
.nav-link.proxy-link { font-size: .85rem; }
.nav-link .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.sidebar-footer { padding: 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: .78rem; color: #94a3b8; }
.sidebar-footer a { color: #f87171; text-decoration: none; font-weight: 600; display: block; margin-top: 6px; }
.sidebar-toggle { display: none; position: fixed; bottom: 16px; left: 16px; z-index: 300; background: #0f172a; color: #fff; border: none; border-radius: 10px; padding: 12px 14px; font-size: 1.1rem; cursor: pointer; }

.main-wrap { margin-left: var(--sidebar-w); flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--card); border-bottom: 1px solid var(--border); padding: 18px 24px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; position: sticky; top: 0; z-index: 50;
}
.topbar h2 { font-size: 1.25rem; }
.topbar p { font-size: .85rem; color: var(--muted); }
.search-input { padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; min-width: min(280px, 100%); font-size: .9rem; }
.content { padding: 20px 24px 40px; flex: 1; }
.loading-state { color: var(--muted); padding: 40px; text-align: center; }

.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card h3 { font-size: .95rem; margin-bottom: 12px; }
.stat-card .label { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.stat-card .value { font-size: 1.5rem; font-weight: 700; margin-top: 4px; }
.stat-card .proxy-tag { font-size: .72rem; color: var(--muted); margin-top: 6px; }
.stat-card.tone-ok .value { color: var(--success); }
.stat-card.tone-warn .value { color: var(--warn); }
.stat-card.tone-danger .value { color: var(--danger); }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tab {
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border); background: #fff;
  font-size: .85rem; font-weight: 600; cursor: pointer; color: var(--muted);
}
.tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 8px; border: none;
  background: var(--accent); color: #fff; font-weight: 600; font-size: .85rem; cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn-sm { padding: 6px 12px; font-size: .78rem; }
.btn-outline { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: var(--danger); }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { font-size: .75rem; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }

.pill { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: .72rem; font-weight: 700; background: #f1f5f9; }
.pill-ok { background: #dcfce7; color: #166534; }
.pill-warn { background: #fef3c7; color: #92400e; }

.log-viewer {
  background: #0f172a; color: #e2e8f0; padding: 14px; border-radius: 8px; font-family: ui-monospace, monospace;
  font-size: .75rem; max-height: 420px; overflow: auto; white-space: pre-wrap; word-break: break-word;
}

.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 12px; font-size: .88rem; }
.alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warn { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.alert-ok { background: #ecfdf5; color: #166534; border: 1px solid #bbf7d0; }

.form-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.form-grid label { display: block; font-size: .78rem; font-weight: 600; margin-bottom: 4px; color: var(--muted); }
.form-grid input[type=number], .form-grid input[type=text], .form-grid input[type=url], .form-grid textarea, .form-grid select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: .85rem;
}
textarea { min-height: 120px; font-family: ui-monospace, monospace; font-size: .78rem; }
.check-row { display: flex; align-items: center; gap: 8px; padding: 6px 0; font-size: .88rem; }

.pagination { display: flex; gap: 6px; align-items: center; margin-top: 14px; flex-wrap: wrap; }
.pagination button { padding: 6px 12px; border: 1px solid var(--border); background: #fff; border-radius: 6px; cursor: pointer; font-size: .82rem; }
.pagination button:disabled { opacity: .4; cursor: not-allowed; }
.pagination span { font-size: .85rem; color: var(--muted); }

.toast-wrap { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast { background: #0f172a; color: #fff; padding: 12px 16px; border-radius: 10px; font-size: .85rem; box-shadow: 0 8px 24px rgba(0,0,0,.2); animation: slideIn .2s ease; max-width: min(360px, calc(100vw - 40px)); }
.toast.err { background: var(--danger); }
@keyframes slideIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.activity-item { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: .85rem; }
.activity-item time { color: var(--muted); font-size: .75rem; display: block; }

.proxy-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.proxy-header .swatch { width: 12px; height: 36px; border-radius: 4px; }
.proxy-header a { color: var(--accent); font-size: .85rem; }

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-toggle { display: block; }
  .main-wrap { margin-left: 0; }
  .topbar { padding: 14px 16px; }
  .content { padding: 16px; }
}