/* public/css/app.css — Agent Evaluation Engine UI */
:root {
  --bg: #0D1117;
  --bg-elevated: #161B22;
  --bg-card: #1C2128;
  --fg: #E6EDF3;
  --fg-muted: #8B949E;
  --accent: #00E5C8;
  --accent-dim: rgba(0, 229, 200, 0.12);
  --border: #30363D;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --pass: #3fb950;
  --fail: #f85149;
  --warn: #d29922;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.app-shell { max-width: 1100px; margin: 0 auto; padding: 0 32px 80px; }

.app-header {
  text-align: center;
  padding: 56px 0 40px;
}
.app-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-muted);
  margin-bottom: 20px;
}
.app-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.app-subtitle { color: var(--fg-muted); font-size: 15px; margin-top: 8px; }

.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.tab-btn {
  background: none;
  border: none;
  padding: 12px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.tab-btn:hover { color: var(--fg); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.panel { display: block; }

.form-section, .history-section, .results-section { flex: 1; min-width: 0; }

.two-col { display: flex; gap: 40px; align-items: flex-start; }

.section-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 20px;
}

.form-stack { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
}
.label-hint { color: var(--fg-muted); font-weight: 400; }
.field-note { font-size: 12px; color: var(--fg-muted); }
.field-note code { background: var(--bg-elevated); padding: 1px 5px; border-radius: 3px; font-size: 11px; color: var(--accent); }

input, select, textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--fg);
  width: 100%;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
textarea { resize: vertical; min-height: 80px; }
select { cursor: pointer; }

.btn-primary {
  background: var(--accent);
  color: #0D1117;
  border: none;
  border-radius: 8px;
  padding: 11px 24px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  align-self: flex-start;
}
.btn-primary:hover:not(:disabled) { opacity: 0.88; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

/* Results */
.results-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.score-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
}
.score-circle.pass { background: rgba(63, 185, 80, 0.15); color: var(--pass); border: 2px solid var(--pass); }
.score-circle.partial { background: rgba(210, 153, 34, 0.15); color: var(--warn); border: 2px solid var(--warn); }
.score-circle.fail { background: rgba(248, 81, 73, 0.15); color: var(--fail); border: 2px solid var(--fail); }
.results-title { font-size: 18px; font-weight: 600; font-family: var(--font-display); }
.results-meta { font-size: 13px; color: var(--fg-muted); margin-top: 4px; }

/* Scenarios */
.scenario-list { display: flex; flex-direction: column; gap: 16px; }
.scenario {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.scenario-pass { border-left: 3px solid var(--pass); }
.scenario-fail { border-left: 3px solid var(--fail); }
.scenario-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.scenario-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-muted);
  flex-shrink: 0;
}
.scenario-name { flex: 1; font-size: 14px; font-weight: 500; }
.badge-pass, .badge-fail {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
}
.badge-pass { background: rgba(63,185,80,0.15); color: var(--pass); }
.badge-fail { background: rgba(248,81,73,0.15); color: var(--fail); }
.scenario-body { display: flex; gap: 12px; padding: 14px 16px; }
.scenario-col { flex: 1; min-width: 0; }
.scenario-col label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--fg-muted); display: block; margin-bottom: 6px; }
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  font-size: 12px;
  color: var(--fg);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  max-height: 120px;
  overflow-y: auto;
}
.actual-fail { border-color: var(--fail); background: rgba(248,81,73,0.05); }

/* History */
.eval-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
  border: 1px solid transparent;
  margin-bottom: 8px;
}
.eval-row:hover { background: var(--bg-elevated); border-color: var(--border); }
.eval-row.pass .eval-score { color: var(--pass); }
.eval-row.partial .eval-score { color: var(--warn); }
.eval-row.fail .eval-score { color: var(--fail); }
.eval-score { font-family: var(--font-display); font-size: 18px; font-weight: 700; width: 44px; flex-shrink: 0; text-align: center; }
.eval-info { flex: 1; }
.eval-info strong { display: block; font-size: 14px; }
.eval-info span { font-size: 12px; color: var(--fg-muted); }

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  z-index: 999;
  animation: slideUp 0.2s ease;
  max-width: 500px;
  text-align: center;
}
.toast-success { background: var(--bg-card); border: 1px solid var(--pass); color: var(--pass); }
.toast-error { background: var(--bg-card); border: 1px solid var(--fail); color: var(--fail); }

.empty-state { color: var(--fg-muted); font-size: 14px; padding: 32px 0; text-align: center; }

@keyframes slideUp {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@media (max-width: 768px) {
  .two-col { flex-direction: column; }
  .app-shell { padding: 0 16px 60px; }
}