:root {
  --bg: #0F172A;
  --bg-card: #1E293B;
  --bg-panel: #172032;
  --text: #E2E8F0;
  --text-sec: #94A3B8;
  --text-muted: #475569;
  --green: #10B981;
  --blue: #3B82F6;
  --amber: #F59E0B;
  --red: #EF4444;
  --purple: #8B5CF6;
  --border: rgba(16,185,129,0.06);
  --radius: 8px;
  --font: 'Inter',system-ui,sans-serif;
  --mono: 'JetBrains Mono',monospace;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}

.header{display:flex;align-items:center;justify-content:space-between;padding:6px 12px;background:var(--bg-card);border-bottom:1px solid var(--border);flex-shrink:0}
.header h1{font-size:.88rem;font-weight:700;color:var(--green)}
.header-right{display:flex;gap:4px;flex-wrap:wrap}

.btn{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-sec);font-family:var(--font);font-size:.68rem;cursor:pointer;transition:.2s;white-space:nowrap}
.btn:hover{border-color:var(--green);color:var(--green)}
.btn.primary{background:var(--green);color:#000;border:none;font-weight:600}
.btn.danger{color:var(--red);border-color:rgba(239,68,68,.15)}
.select{padding:4px 6px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text);font-family:var(--font);font-size:.68rem}

.layout{display:flex;flex:1;overflow:hidden}

/* Sidebar */
.sidebar{width:280px;border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.filter-bar{padding:6px;display:flex;gap:4px}
.filter-bar .input{flex:1;padding:4px 6px;border:1px solid var(--border);border-radius:6px;background:rgba(255,255,255,.02);color:var(--text);font-family:var(--font);font-size:.7rem}
.filter-bar .input:focus{outline:none;border-color:var(--green)}
.request-list{flex:1;overflow-y:auto;padding:4px}

.req-card{padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:3px;cursor:pointer;transition:.15s}
.req-card:hover,.req-card.active{border-color:var(--green);background:rgba(16,185,129,.03)}
.req-card-top{display:flex;align-items:center;gap:6px}
.method-badge{padding:1px 5px;border-radius:3px;font-size:.58rem;font-weight:700;letter-spacing:.02em}
.method-GET{background:rgba(16,185,129,.12);color:var(--green)}
.method-POST{background:rgba(59,130,246,.12);color:var(--blue)}
.method-PUT,.method-PATCH{background:rgba(245,158,11,.12);color:var(--amber)}
.method-DELETE{background:rgba(239,68,68,.12);color:var(--red)}
.req-path{font-size:.68rem;color:var(--text-sec);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.req-time{font-size:.56rem;color:var(--text-muted)}

/* Detail */
.detail{flex:1;overflow-y:auto;padding:12px}
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}
.empty-icon{font-size:2.4rem;margin-bottom:8px}
.empty-state .sub{font-size:.7rem;margin-top:4px}

.detail-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:10px;margin-bottom:8px}
.detail-section h3{font-size:.64rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;margin-bottom:6px}
.detail-actions{display:flex;gap:4px;margin-bottom:8px}

.kv-table{width:100%;border-collapse:collapse}
.kv-table td{padding:3px 6px;font-size:.7rem;border-bottom:1px solid var(--border);vertical-align:top}
.kv-table td:first-child{color:var(--green);font-weight:500;width:35%;font-family:var(--mono);font-size:.66rem}
.kv-table td:last-child{color:var(--text-sec);word-break:break-all;font-family:var(--mono);font-size:.66rem}

pre.body-pre{background:rgba(0,0,0,.2);padding:8px;border-radius:6px;font-family:var(--mono);font-size:.7rem;line-height:1.6;overflow-x:auto;color:var(--text-sec);white-space:pre-wrap}

/* Modal */
.modal{border:none;border-radius:12px;background:var(--bg-card);color:var(--text);padding:16px;max-width:480px;width:90vw}
.modal::backdrop{background:rgba(0,0,0,.6)}
.modal h2{font-size:.82rem;margin-bottom:8px}
.form-group{margin-bottom:6px}
.form-group label{display:block;font-size:.62rem;color:var(--text-muted);margin-bottom:2px}
.input{width:100%;padding:5px 8px;border:1px solid var(--border);border-radius:6px;background:rgba(255,255,255,.02);color:var(--text);font-family:var(--font);font-size:.74rem}
.input.code{font-family:var(--mono);font-size:.7rem}
.input:focus{outline:none;border-color:var(--green)}
.modal-actions{display:flex;gap:6px;justify-content:flex-end;margin-top:10px}

@media(max-width:640px){
  .layout{flex-direction:column}
  .sidebar{width:100%;max-height:200px;border-right:none;border-bottom:1px solid var(--border)}
}