:root {
  --bg:       #0d0d0d;
  --surface:  #141414;
  --surface2: #1a1a1a;
  --border:   #2a2a2a;
  --text:     #c9c9c9;
  --text-dim: #555;
  --accent:   #1a73e8;
  --green:    #4caf50;
  --yellow:   #ffc107;
  --red:      #f44336;
  --font-mono: 'Cascadia Code', Consolas, 'Courier New', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Top bar ────────────────────────────────────────────── */
#status-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
  transition: background 0.3s;
}
#status-dot.running {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 1.5s infinite;
}
#status-dot.error {
  background: var(--red);
  box-shadow: 0 0 6px var(--red);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

#status-text { color: var(--text); font-weight: 600; font-size: 12px; }
#status-meta { color: var(--text-dim); font-size: 11px; margin-left: auto; }

/* ── Controls ────────────────────────────────────────────── */
#controls {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#controls label {
  color: var(--text-dim);
  font-size: 12px;
  white-space: nowrap;
}

#max-referrals {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 4px 8px;
  width: 64px;
  border-radius: 3px;
  outline: none;
}
#max-referrals:focus { border-color: var(--accent); }

button {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
  transition: opacity 0.15s;
}
button:disabled { opacity: 0.35; cursor: not-allowed; }

#btn-start {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
#btn-start:hover:not(:disabled) { opacity: 0.85; }

#btn-stop {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
}
#btn-stop:hover:not(:disabled) { background: rgba(244,67,54,0.1); }

/* ── OTP Panel ───────────────────────────────────────────── */
#otp-panel {
  background: rgba(255, 193, 7, 0.08);
  border-bottom: 2px solid var(--yellow);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
#otp-panel.hidden { display: none; }
#otp-label { color: var(--yellow); font-size: 12px; }
#otp-input {
  background: var(--surface2);
  border: 1px solid var(--yellow);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 4px;
  padding: 4px 10px;
  width: 130px;
  border-radius: 3px;
  outline: none;
}
#btn-otp-submit {
  background: var(--yellow);
  color: #000;
  border-color: var(--yellow);
  font-weight: 600;
}
#btn-otp-submit:hover:not(:disabled) { opacity: 0.85; }

/* ── Main content (logs + history) ────────────────────────── */
#main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Log panel ───────────────────────────────────────────── */
#log-panel {
  flex: 7;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow: hidden;
}

#log-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

#log-output {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  line-height: 1.55;
  font-size: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#log-output::-webkit-scrollbar { width: 6px; }
#log-output::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

#log-output .log-line { display: block; white-space: pre-wrap; word-break: break-all; }
.log-info  { color: var(--text); }
.log-warn  { color: var(--yellow); }
.log-error { color: var(--red); }
.log-meta  { color: var(--text-dim); font-style: italic; }

#log-clear {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 11px;
  padding: 2px 6px;
  cursor: pointer;
}
#log-clear:hover { color: var(--text); }

/* ── History panel ───────────────────────────────────────── */
#history-panel {
  flex: 3;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 220px;
}

#history-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-dim);
  flex-shrink: 0;
}

#history-table-wrap {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#history-table-wrap::-webkit-scrollbar { width: 6px; }
#history-table-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}
thead th {
  background: var(--surface2);
  color: var(--text-dim);
  padding: 5px 10px;
  text-align: left;
  position: sticky;
  top: 0;
  z-index: 1;
  border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); }
tbody tr:hover { background: var(--surface2); }
tbody td { padding: 5px 10px; vertical-align: top; }
.col-name  { color: var(--text); max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.col-time  { color: var(--text-dim); white-space: nowrap; }

.badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-completed      { background: rgba(76,175,80,0.18);  color: var(--green); }
.badge-pdf_downloaded { background: rgba(255,193,7,0.18);  color: var(--yellow); }
.badge-unknown        { background: rgba(85,85,85,0.25);   color: var(--text-dim); }
.badge-error          { background: rgba(244,67,54,0.18);  color: var(--red); }

#history-empty {
  padding: 24px 12px;
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
}