:root {
  --bg: #0b1120; --surface: #141c2e; --surface2: #1a2540; --border: #253050;
  --text: #e2e8f0; --muted: #8b9cc0; --accent: #4f8ff7; --accent-hover: #6ba3ff;
  --danger: #e05252; --success: #34d399; --warning: #fbbf24;
  --radius: 10px; --shadow: 0 2px 12px rgba(0,0,0,.35);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; margin: 0 auto; max-width: 1100px; padding: 0 1rem 4rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
h1 { font-size: 1.6rem; letter-spacing: -.04em; margin: 1.8rem 0 .2rem; font-weight: 700; }
h2 { font-size: 1.15rem; font-weight: 600; margin-bottom: .6rem; color: var(--text); }
h3 { font-size: .95rem; font-weight: 600; margin-bottom: .4rem; }
p { margin: .3rem 0; }
small { color: var(--muted); }
code { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: .85rem; color: #93c5fd; word-break: break-all; }
pre { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: .8rem; overflow-x: auto; margin: .5rem 0; }
pre code { color: var(--text); word-break: normal; }

/* ── cards ── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem; margin-bottom: 1rem; transition: border-color .2s; }
.card:hover { border-color: #3a4f7a; }

/* ── summary cards row ── */
.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: .8rem; margin-bottom: 1.2rem; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; transition: border-color .2s, transform .15s; }
.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.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: .15rem; }
.stat-card .value.accent { color: var(--accent); }
.stat-card .value.success { color: var(--success); }
.stat-card .value.warning { color: var(--warning); }
.stat-card .value.danger { color: var(--danger); }
.stat-card .sub { font-size: .78rem; color: var(--muted); margin-top: .1rem; }

/* ── buttons ── */
button, .btn { padding: .55rem 1.1rem; border-radius: 7px; border: none; cursor: pointer; font-size: .85rem; font-weight: 500; transition: background .15s, transform .1s; display: inline-flex; align-items: center; gap: .4rem; }
button:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c94040; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn-sm { padding: .35rem .7rem; font-size: .78rem; }
.btn-icon { background: none; border: none; color: var(--muted); cursor: pointer; padding: .3rem; border-radius: 5px; font-size: 1rem; }
.btn-icon:hover { color: var(--text); background: var(--surface2); }
.btn[disabled] { opacity: .45; pointer-events: none; }

/* ── inputs ── */
input, select, textarea {
  padding: .55rem .75rem; border-radius: 7px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: .85rem; font-family: inherit;
  transition: border-color .15s, box-shadow .15s; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,143,247,.15); }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .7; }
.form-row { display: flex; gap: .5rem; align-items: flex-end; flex-wrap: wrap; margin: .5rem 0; }
.form-row input { flex: 1; min-width: 140px; }
.form-label { font-size: .78rem; color: var(--muted); margin-bottom: .2rem; display: block; }
.form-group { margin-bottom: .8rem; }

/* ── tables ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th { text-align: left; padding: .6rem .7rem; color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; border-bottom: 2px solid var(--border); white-space: nowrap; }
td { padding: .55rem .7rem; border-bottom: 1px solid var(--border); }
tr:hover td { background: var(--surface2); }
tr:nth-child(even) td { background: rgba(255,255,255,.015); }
td code { font-size: .8rem; }
.table-empty { text-align: center; padding: 2rem 1rem; color: var(--muted); }
.table-actions { display: flex; gap: .4rem; }

/* ── nav / tabs ── */
.topbar { display: flex; align-items: center; gap: 1.2rem; padding: 1rem 0; border-bottom: 1px solid var(--border); margin-bottom: 1.2rem; flex-wrap: wrap; }
.topbar .brand { font-weight: 700; font-size: 1rem; white-space: nowrap; color: var(--text); }
.topbar nav { display: flex; gap: .15rem; flex-wrap: wrap; }
.tab-btn { background: none; border: none; color: var(--muted); padding: .45rem .85rem; border-radius: 7px; cursor: pointer; font-size: .85rem; font-weight: 500; transition: background .15s, color .15s; }
.tab-btn:hover { color: var(--text); background: var(--surface2); }
.tab-btn.active { color: var(--accent); background: rgba(79,143,247,.12); }
.topbar .spacer { flex: 1; }
.tab { display: none; animation: fadeIn .25s ease; }
.tab.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── auth section ── */
.auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-top: 1rem; }
.auth-grid .card { padding: 1.5rem; }
.auth-grid h2 { font-size: 1.1rem; }
.auth-grid .card form { display: flex; flex-direction: column; gap: .6rem; }
.auth-grid .card button { margin-top: .3rem; }
@media (max-width: 600px) { .auth-grid { grid-template-columns: 1fr; } }

/* ── notice / toast ── */
.notice { padding: .7rem .9rem; background: rgba(79,143,247,.1); border: 1px solid rgba(79,143,247,.2); border-radius: 7px; margin-bottom: 1rem; font-size: .85rem; }
.notice.error { background: rgba(224,82,82,.1); border-color: rgba(224,82,82,.25); color: #fca5a5; }
.notice.success { background: rgba(52,211,153,.08); border-color: rgba(52,211,153,.2); color: #6ee7b7; }
#toast-container { position: fixed; bottom: 1.2rem; right: 1.2rem; z-index: 9999; display: flex; flex-direction: column-reverse; gap: .5rem; pointer-events: none; }
.toast { padding: .65rem 1rem; border-radius: 8px; font-size: .85rem; pointer-events: auto; animation: slideIn .3s ease; box-shadow: var(--shadow); max-width: 360px; }
.toast.info { background: #1e3a5f; color: #93c5fd; border: 1px solid #2563eb33; }
.toast.success { background: #064e3b; color: #6ee7b7; border: 1px solid #05966933; }
.toast.error { background: #7f1d1d; color: #fca5a5; border: 1px solid #dc262633; }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

/* ── chart ── */
.chart-container { position: relative; width: 100%; height: 240px; margin: .5rem 0; }
.chart-container canvas { width: 100% !important; height: 100% !important; }
.chart-tooltip { position: absolute; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: .4rem .6rem; font-size: .75rem; pointer-events: none; white-space: nowrap; z-index: 10; box-shadow: var(--shadow); display: none; }

/* ── playground ── */
.playground { display: flex; flex-direction: column; height: calc(100vh - 200px); min-height: 400px; }
.pg-header { display: flex; gap: .5rem; align-items: center; margin-bottom: .8rem; flex-wrap: wrap; }
.pg-header select { width: auto; min-width: 200px; }
.pg-messages { flex: 1; overflow-y: auto; padding: .5rem 0; display: flex; flex-direction: column; gap: .7rem; }
.pg-msg { padding: .7rem .9rem; border-radius: var(--radius); max-width: 85%; font-size: .9rem; line-height: 1.5; }
.pg-msg code { background: rgba(0,0,0,.3); padding: .1rem .35rem; border-radius: 4px; font-size: .85rem; font-family: monospace; }
.pg-msg pre { background: rgba(0,0,0,.4); border: 1px solid var(--border); border-radius: 6px; padding: .6rem; overflow-x: auto; margin: .4rem 0; }
.pg-msg pre code { background: none; padding: 0; font-size: .82rem; }
.pg-msg.user { background: var(--accent); color: #fff; align-self: flex-end; border-bottom-right-radius: 3px; }
.pg-msg.assistant { background: var(--surface); border: 1px solid var(--border); align-self: flex-start; border-bottom-left-radius: 3px; }
.pg-msg.system { background: transparent; color: var(--muted); align-self: center; font-size: .8rem; font-style: italic; border: none; padding: .3rem; }
.pg-msg.streaming::after { content: '▍'; animation: blink 1s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.pg-input { display: flex; gap: .5rem; padding-top: .8rem; border-top: 1px solid var(--border); margin-top: .8rem; }
.pg-input textarea { flex: 1; resize: none; min-height: 44px; max-height: 150px; padding: .6rem .8rem; font-family: inherit; }
.pg-input button { flex-shrink: 0; height: 44px; }

/* ── models ── */
.model-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: .8rem; }
.model-card { display: flex; align-items: flex-start; gap: .7rem; }
.model-card .dot { width: 10px; height: 10px; border-radius: 50%; margin-top: .35rem; flex-shrink: 0; }
.dot-green { background: var(--success); box-shadow: 0 0 6px var(--success); }
.dot-yellow { background: var(--warning); }
.dot-red { background: var(--danger); }

/* ── admin health ── */
.health-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .7rem; margin-bottom: 1rem; }

/* ── badge / status ── */
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 20px; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.badge-pending { background: rgba(251,191,36,.15); color: var(--warning); }
.badge-approved { background: rgba(52,211,153,.12); color: var(--success); }
.badge-rejected { background: rgba(224,82,82,.12); color: var(--danger); }
.badge-suspended { background: rgba(139,156,192,.12); color: var(--muted); }

/* ── skeleton ── */
.skeleton { background: linear-gradient(90deg, var(--surface) 25%, var(--surface2) 50%, var(--surface) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 6px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skel-line { height: 1rem; margin-bottom: .5rem; }
.skel-card { height: 80px; border-radius: var(--radius); }
.skel-table th, .skel-table td { padding: .55rem .7rem; }
.skel-table td { height: 2rem; }

/* ── key secret reveal ── */
.secret-reveal { background: rgba(52,211,153,.08); border: 1px solid rgba(52,211,153,.25); border-radius: var(--radius); padding: .8rem 1rem; margin: .8rem 0; display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.secret-reveal code { font-size: .9rem; color: #6ee7b7; flex: 1; min-width: 200px; word-break: break-all; }
.secret-reveal .btn { flex-shrink: 0; }

/* ── user row expand ── */
.user-expand { background: var(--bg); border-radius: 0 0 var(--radius) var(--radius); padding: .8rem 1rem; margin-top: -.5rem; border: 1px solid var(--border); border-top: none; }
.inline-edit { display: inline-flex; gap: .3rem; align-items: center; }
.inline-edit input { width: 80px; padding: .25rem .4rem; font-size: .8rem; }
.inline-edit select { width: 100px; padding: .25rem .4rem; font-size: .8rem; }

/* ── agent toggle ── */
.agent-toggle { display: inline-flex; align-items: center; gap: .4rem; cursor: pointer; user-select: none; padding: .2rem .5rem; border-radius: 6px; border: 1px solid var(--border); transition: all .2s; }
.agent-toggle:hover { border-color: var(--accent); }
.agent-toggle input[type="checkbox"] { appearance: none; -webkit-appearance: none; width: 32px; height: 18px; background: var(--border); border-radius: 9px; position: relative; cursor: pointer; transition: background .2s; flex-shrink: 0; }
.agent-toggle input[type="checkbox"]::after { content: ''; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; background: var(--muted); border-radius: 50%; transition: all .2s; }
.agent-toggle input[type="checkbox"]:checked { background: var(--accent); }
.agent-toggle input[type="checkbox"]:checked::after { left: 16px; background: #fff; }
.agent-toggle-label { font-size: .8rem; color: var(--muted); font-weight: 500; }
.agent-toggle input:checked ~ .agent-toggle-label { color: var(--accent); }

/* ── tool call messages ── */
.pg-msg.tool-call { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: .8rem 1rem; margin: .5rem 0; max-width: 100%; width: 100%; }
.pg-msg.tool-call .tool-header { font-size: .85rem; font-weight: 600; color: var(--accent); margin-bottom: .4rem; }
.pg-msg.tool-call .tool-args { margin-bottom: .4rem; }
.pg-msg.tool-call .tool-args pre { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: .5rem; font-size: .78rem; max-height: 150px; overflow-y: auto; }
.pg-msg.tool-call .tool-result pre { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: .5rem; font-size: .78rem; max-height: 200px; overflow-y: auto; color: var(--muted); }

/* ── responsive ── */
@media (max-width: 768px) {
  body { padding: 0 .6rem 3rem; }
  .topbar { gap: .6rem; }
  .topbar nav { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; padding-bottom: .3rem; }
  .tab-btn { white-space: nowrap; font-size: .8rem; padding: .4rem .65rem; }
  .summary { grid-template-columns: 1fr 1fr; }
  .health-grid { grid-template-columns: 1fr 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .pg-messages { min-height: 200px; }
  h1 { font-size: 1.3rem; margin-top: 1rem; }
}
@media (max-width: 480px) {
  .summary { grid-template-columns: 1fr; }
  .health-grid { grid-template-columns: 1fr; }
  .pg-msg { max-width: 95%; }
}

/* ── copy feedback ── */
.copy-ok { color: var(--success) !important; }

/* ── scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #3a4f7a; }

/* ── hidden util ── */
.hidden { display: none !important; }