/* ============ Reset & Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d1117;
  --bg-elev: #161b22;
  --bg-elev-2: #1c2128;
  --border: #30363d;
  --border-soft: #21262d;
  --text: #c9d1d9;
  --text-soft: #8b949e;
  --text-bright: #f0f6fc;
  --accent: #7ee787;
  --accent-soft: #1f6f3e;
  --warn: #d29922;
  --fail: #f85149;
  --link: #79c0ff;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Pretendard, sans-serif;
}

html, body { height: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre {
  font-family: var(--mono);
  font-size: 12.5px;
}

/* ============ Layout ============ */
.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  height: 100vh;
}

.sidebar {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
}

.result-pane {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ============ Brand ============ */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-soft);
}
.brand-emoji {
  font-size: 36px;
  filter: drop-shadow(0 2px 8px rgba(126, 231, 135, 0.3));
}
.brand h1 {
  font-size: 18px;
  color: var(--text-bright);
  letter-spacing: -0.01em;
}
.brand p {
  font-size: 11.5px;
  color: var(--text-soft);
}

/* ============ Health Indicator ============ */
.health {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-soft);
}
.health.ok { color: var(--accent); border-color: var(--accent-soft); }
.health.error { color: var(--fail); border-color: var(--fail); }

/* ============ Form ============ */
#qa-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-soft);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.field-label em {
  color: var(--fail);
  font-style: normal;
}
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

input[type="url"], input[type="text"], input[type="password"], textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(121, 192, 255, 0.1);
}
textarea {
  resize: vertical;
  min-height: 100px;
  font-family: var(--mono);
  line-height: 1.6;
}

/* ============ Presets ============ */
.presets summary {
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text-soft);
  padding: 8px 0;
  user-select: none;
}
.presets summary:hover { color: var(--text); }
.preset {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  color: var(--text-soft);
  padding: 7px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  margin-top: 6px;
  font-family: var(--sans);
  transition: all 0.15s;
}
.preset:hover {
  border-color: var(--link);
  color: var(--text);
  background: var(--bg-elev-2);
}

/* ============ Buttons ============ */
.actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

button[type="submit"], #stop-btn {
  flex: 1;
  padding: 11px 16px;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--sans);
  letter-spacing: 0.02em;
  transition: all 0.15s;
}

#run-btn {
  background: var(--accent);
  color: #0d1117;
}
#run-btn:hover:not(:disabled) {
  background: #56d364;
  box-shadow: 0 0 0 3px rgba(126, 231, 135, 0.2);
}
#run-btn:disabled {
  background: var(--bg-elev-2);
  color: var(--text-soft);
  cursor: not-allowed;
}

#stop-btn {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
}
#stop-btn:hover:not(:disabled) {
  background: var(--fail);
  color: #fff;
  border-color: var(--fail);
}
#stop-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============ Footer ============ */
.foot {
  font-size: 11px;
  color: var(--text-soft);
  text-align: center;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}

/* ============ Tabs ============ */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.tab {
  background: none;
  border: none;
  color: var(--text-soft);
  padding: 14px 22px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--sans);
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel { display: none; flex: 1; overflow-y: auto; padding: 0; }
.tab-panel.active { display: flex; flex-direction: column; }

/* ============ Status Bar ============ */
.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border-soft);
  font-size: 13px;
  font-family: var(--mono);
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-soft);
}
.status-dot.running { background: var(--warn); animation: pulse 1.2s infinite; }
.status-dot.ok { background: var(--accent); }
.status-dot.error { background: var(--fail); }
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--warn); }
  50% { opacity: 0.6; box-shadow: 0 0 0 6px transparent; }
}
.spacer { flex: 1; }
.step-counter { color: var(--text-soft); font-size: 12px; }

/* ============ Log ============ */
.log {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
}
.log-line {
  padding: 2px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  margin-left: -10px;
}
.log-line.muted { color: var(--text-soft); font-style: italic; }
.log-line.thinking { color: var(--link); border-left-color: var(--link); }
.log-line.success { color: var(--accent); }
.log-line.fail { color: var(--fail); border-left-color: var(--fail); }
.log-line.info { color: var(--text); }
.log-line.system { color: var(--warn); border-left-color: var(--warn); font-weight: 600; }
.log-line .ts { color: var(--text-soft); margin-right: 8px; font-size: 11px; }

/* ============ Steps Grid ============ */
.steps-grid {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.placeholder {
  color: var(--text-soft);
  text-align: center;
  padding: 60px 20px;
  font-style: italic;
}

.step-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 200px;
  transition: border-color 0.2s;
}
.step-card.fail { border-color: var(--fail); }
.step-card.ok { border-color: var(--border); }

.step-info { padding: 14px 16px; }
.step-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.step-num {
  background: var(--bg);
  color: var(--text-soft);
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-family: var(--mono);
  border: 1px solid var(--border);
}
.step-type {
  background: var(--bg-elev-2);
  color: var(--link);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--mono);
}
.step-desc {
  color: var(--text-bright);
  font-size: 13.5px;
  font-weight: 500;
}
.step-meta {
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--text-soft);
  font-family: var(--mono);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.step-meta code {
  background: var(--bg);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--link);
}
.step-error {
  margin-top: 10px;
  padding: 8px 10px;
  background: rgba(248, 81, 73, 0.1);
  border-left: 3px solid var(--fail);
  color: #ffa198;
  font-size: 12px;
  border-radius: 0 4px 4px 0;
}
.step-screenshot {
  background: #000;
  overflow: hidden;
  border-left: 1px solid var(--border);
}
.step-screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
}

/* ============ Report ============ */
#report-content { padding: 24px; }
.report-summary {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}
.report-summary h2 {
  font-size: 18px;
  margin-bottom: 14px;
  color: var(--text-bright);
}
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.05em;
}
.badge.PASS { background: var(--accent-soft); color: #fff; }
.badge.FAIL { background: #8b1a1a; color: #fff; }
.badge.PARTIAL { background: #876900; color: #fff; }

.report-grid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  font-size: 13px;
  margin-top: 16px;
}
.report-grid dt {
  color: var(--text-soft);
  font-family: var(--mono);
  font-size: 12px;
}
.report-grid dd { color: var(--text); }

.report-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.report-actions a {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--mono);
}
.report-actions a:hover { border-color: var(--link); text-decoration: none; }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-soft); }

/* Responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); max-height: 50vh; }
  .step-card { grid-template-columns: 1fr; }
  .step-screenshot { border-left: none; border-top: 1px solid var(--border); max-height: 200px; }
}