:root {
    --bg: #0f1117;
    --card: #1a1d27;
    --border: #2a2d3a;
    --text: #e4e6eb;
    --text-dim: #8b8fa3;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --green: #22c55e;
    --red: #ef4444;
    --orange: #f59e0b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--card); border-right: 1px solid var(--border); padding: 20px 0; position: fixed; height: 100vh; overflow-y: auto; }
.sidebar .logo { padding: 0 20px 20px; font-size: 18px; font-weight: 700; color: var(--accent); border-bottom: 1px solid var(--border); }
.sidebar nav { padding: 10px 0; }
.sidebar nav a { display: flex; align-items: center; padding: 10px 20px; color: var(--text-dim); font-size: 14px; transition: all 0.2s; }
.sidebar nav a:hover, .sidebar nav a.active { color: var(--text); background: rgba(59,130,246,0.1); text-decoration: none; }
.sidebar nav a.active { border-right: 3px solid var(--accent); }
.main { margin-left: 240px; flex: 1; padding: 24px; }
.lang-switch { position: absolute; bottom: 20px; left: 0; right: 0; display: flex; justify-content: center; gap: 4px; padding: 0 20px; }
.lang-switch a { padding: 4px 12px; border-radius: 6px; font-size: 12px; font-weight: 600; color: var(--text-dim); border: 1px solid var(--border); transition: all 0.2s; text-decoration: none; }
.lang-switch a:hover { color: var(--text); border-color: var(--text-dim); }
.lang-switch a.active { background: var(--accent); color: white; border-color: var(--accent); }

/* Cards */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.stat-card .label { font-size: 13px; color: var(--text-dim); margin-bottom: 4px; }
.stat-card .value { font-size: 28px; font-weight: 700; }
.stat-card .value.green { color: var(--green); }
.stat-card .value.blue { color: var(--accent); }
.stat-card .value.orange { color: var(--orange); }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.card h2 { font-size: 16px; margin-bottom: 16px; color: var(--text); }

/* Table */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
tr:hover td { background: rgba(255,255,255,0.02); }
.msg-text { max-width: 400px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Buttons */
.btn { display: inline-flex; align-items: center; padding: 8px 16px; border-radius: 8px; border: none; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--red); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--green); color: white; }
.btn-success:hover { background: #16a34a; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Forms */
input, select { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; color: var(--text); font-size: 13px; outline: none; }
input:focus, select:focus { border-color: var(--accent); }
.form-row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; margin-bottom: 12px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 12px; color: var(--text-dim); }

/* Badge */
.badge { display: inline-block; padding: 3px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-green { background: rgba(34,197,94,0.15); color: var(--green); }
.badge-red { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-blue { background: rgba(59,130,246,0.15); color: var(--accent); }
.badge-orange { background: rgba(245,158,11,0.15); color: var(--orange); }

/* Pagination */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 12px; border-radius: 6px; font-size: 13px; border: 1px solid var(--border); }
.pagination a:hover { background: var(--border); text-decoration: none; }
.pagination .current { background: var(--accent); color: white; border-color: var(--accent); }

/* Alert */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.alert-info { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3); color: var(--accent); }
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: var(--green); }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--red); }

/* Login */
.login-wrap { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-box { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 40px; width: 380px; }
.login-box h1 { text-align: center; margin-bottom: 24px; font-size: 22px; }
.login-box input { width: 100%; margin-bottom: 12px; padding: 10px 14px; }
.login-box .btn { width: 100%; justify-content: center; padding: 10px; font-size: 14px; }

/* JSON Viewer */
.json-toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.toolbar-group { display: flex; gap: 6px; align-items: center; }
.json-viewer-tabs { display: flex; gap: 0; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab { background: none; border: none; color: var(--text-dim); padding: 8px 16px; font-size: 13px; cursor: pointer; border-bottom: 2px solid transparent; transition: all 0.2s; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.json-view { max-height: 70vh; overflow: auto; font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace; font-size: 13px; line-height: 1.6; }
.json-node { }
.json-toggle { display: inline-block; width: 16px; cursor: pointer; color: var(--text-dim); user-select: none; font-size: 10px; }
.json-toggle:hover { color: var(--accent); }
.json-summary { color: var(--text-dim); font-size: 12px; margin-left: 4px; }
.json-row { padding: 1px 0; border-radius: 3px; cursor: pointer; }
.json-row:hover { background: rgba(59,130,246,0.06); }
.json-row.selected { background: rgba(59,130,246,0.12); outline: 1px solid rgba(59,130,246,0.3); }
.json-key { color: #7dd3fc; }
.json-string { color: #86efac; word-break: break-all; }
.json-number { color: #fbbf24; }
.json-bool { color: #c084fc; }
.json-null { color: #6b7280; font-style: italic; }
.json-highlight { background: rgba(251,191,36,0.25); border-radius: 2px; padding: 0 2px; }
.json-path { background: var(--bg); padding: 4px 10px; border-radius: 6px; font-size: 12px; color: var(--text-dim); max-width: 400px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; }
.raw-json { white-space: pre-wrap; word-break: break-word; color: var(--text); margin: 0; background: none; }
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--accent); color: white; padding: 10px 20px; border-radius: 8px; font-size: 13px; opacity: 0; transition: opacity 0.3s; pointer-events: none; z-index: 9999; }
.toast.show { opacity: 1; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main { margin-left: 0; padding: 16px; }
    .stats { grid-template-columns: 1fr 1fr; }
}