*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3e;
  --accent: #4f8ef7;
  --accent2: #7c5cbf;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #f59e0b;
  --text: #e2e8f0;
  --muted: #64748b;
  --radius: 10px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
header .logo {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
}
header h1 { font-size: 16px; font-weight: 600; }
header span { font-size: 12px; color: var(--muted); margin-left: 4px; }

#session-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 8px 24px;
  display: flex; align-items: center; gap: 10px; font-size: 12px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.green { background: var(--green); }
.dot.red   { background: var(--red); }
#session-id-display { color: var(--muted); font-family: monospace; font-size: 11px; }

.layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  height: calc(100vh - 95px);
}

.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px 0;
}
.sidebar-info {
  padding: 20px 20px 8px;
  border-top: 1px solid var(--border);
  margin-top: 12px;
  font-size: 11px; color: var(--muted); line-height: 1.6;
}

.nav-section { padding: 0 12px; margin-bottom: 6px; }
.nav-label {
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
  color: var(--muted); text-transform: uppercase;
  padding: 8px 8px 4px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 7px; cursor: pointer;
  transition: background 0.15s;
}
.nav-item:hover { background: rgba(255,255,255,0.05); }
.nav-item.active { background: rgba(79,142,247,0.15); color: var(--accent); }
.nav-item .badge { font-size: 10px; padding: 2px 7px; border-radius: 12px; margin-left: auto; font-weight: 600; }
.nav-item-featured {
  background: rgba(99,102,241,0.12);
  color: #a5b4fc;
  border: 1px solid rgba(99,102,241,0.3);
  font-weight: 600;
}
.nav-item-featured:hover { background: rgba(99,102,241,0.22) !important; }
.badge.get  { background: rgba(34,197,94,0.15);  color: var(--green); }
.badge.post { background: rgba(79,142,247,0.15); color: var(--accent); }

.main { overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 20px; }

.page { display: none; flex-direction: column; gap: 20px; }
.page.active { display: flex; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.locked-panel { opacity: 0.4; pointer-events: none; }

.panel-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.panel-head h2 { font-size: 14px; font-weight: 600; }
.method { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 5px; font-family: monospace; }
.method.get  { background: rgba(34,197,94,0.15);  color: var(--green); }
.method.post { background: rgba(79,142,247,0.15); color: var(--accent); }
.panel-url { font-family: monospace; font-size: 11px; color: var(--muted); margin-left: auto; }

.panel-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 500; color: var(--muted); }

input, select, .code-textarea {
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); padding: 9px 12px; border-radius: 7px;
  font-size: 13px; outline: none; width: 100%;
  transition: border-color 0.15s;
}
input:focus, select:focus, .code-textarea:focus { border-color: var(--accent); }
.captcha-input {
  letter-spacing: 3px;
  font-size: 16px; font-weight: 600; font-family: monospace;
}
.code-textarea { font-family: monospace; font-size: 12px; min-height: 100px; resize: vertical; }

.btn {
  padding: 9px 18px; border-radius: 7px; border: none;
  font-size: 13px; font-weight: 600; cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  display: inline-flex; align-items: center; gap: 7px;
}
.btn:hover   { opacity: 0.85; }
.btn:active  { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.success { background: var(--green);  color: #fff; }
.btn.danger  { background: var(--red);    color: #fff; }
.btn.ghost   { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-row     { display: flex; gap: 10px; align-items: center; }

.captcha-box {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px;
}
#captchaImg {
  height: 60px; border-radius: 6px;
  border: 1px solid var(--border); background: #fff;
}
#captchaPlaceholder {
  height: 60px; width: 160px; border-radius: 6px;
  border: 2px dashed var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 12px;
}

.response-box {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px;
  font-family: monospace; font-size: 12px;
  max-height: 260px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-all;
  line-height: 1.6;
}
.response-box.success { border-color: rgba(34,197,94,0.4); }
.response-box.error   { border-color: rgba(239,68,68,0.4); }

.status-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}
.chip-success { background: rgba(34,197,94,0.15);  color: var(--green); }
.chip-error   { background: rgba(239,68,68,0.15);  color: var(--red); }
.chip-warn    { background: rgba(245,158,11,0.15); color: var(--yellow); }

.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.step-badge {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.step-badge.done   { background: var(--green); }
.step-badge.locked { background: var(--border); color: var(--muted); }

.flow-steps {
  display: flex; gap: 8px; align-items: center;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px;
}
.flow-step  { display: flex; align-items: center; gap: 6px; font-size: 12px; }
.flow-arrow { color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th {
  text-align: left; padding: 8px 10px; color: var(--muted);
  font-weight: 600; border-bottom: 1px solid var(--border);
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
}
td { padding: 9px 10px; border-bottom: 1px solid rgba(255,255,255,0.04); }
tr:last-child td { border-bottom: none; }