/* Kredo Web App — Dark theme, responsive */

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-input: #0d1117;
  --bg-hover: #1c2333;
  --border: #30363d;
  --border-focus: #58a6ff;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-dim: #6e7681;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --green: #3fb950;
  --green-dim: #238636;
  --red: #f85149;
  --red-dim: #da3633;
  --yellow: #d29922;
  --purple: #bc8cff;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --max-width: 960px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

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

html { font-size: 15px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* --- Layout --- */

.app-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 56px;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.logo span { color: var(--accent); }

nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  flex: 1;
}

nav a {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all 0.15s;
}

nav a:hover {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}

nav a.active {
  background: var(--bg-hover);
  color: var(--accent);
}

.header-status {
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.header-status .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 4px;
  vertical-align: middle;
}

.header-status .dot.offline { background: var(--text-dim); }

main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1rem;
  width: 100%;
}

footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

footer a { color: var(--text-muted); }

/* --- Alerts --- */

#alerts {
  position: fixed;
  top: 64px;
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 400px;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow);
  animation: slideIn 0.2s ease;
  font-size: 0.9rem;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.alert-success { background: var(--green-dim); color: #fff; border: 1px solid var(--green); }
.alert-error { background: var(--red-dim); color: #fff; border: 1px solid var(--red); }
.alert-warning { background: #4d3800; color: #fff; border: 1px solid var(--yellow); }
.alert-info { background: #0c2d6b; color: #fff; border: 1px solid var(--accent); }

.alert-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.2rem;
  cursor: pointer;
  margin-left: auto;
  opacity: 0.7;
}

.alert-close:hover { opacity: 1; }

/* --- Loading --- */

.loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem;
  justify-content: center;
  color: var(--text-muted);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Cards --- */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card-header {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

/* --- Forms --- */

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.15);
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-group .hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover { background: var(--bg-hover); border-color: var(--text-dim); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}

.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-success {
  background: var(--green-dim);
  color: #fff;
  border-color: var(--green);
}

.btn-success:hover { background: var(--green); }

.btn-danger {
  background: var(--red-dim);
  color: #fff;
  border-color: var(--red);
}

.btn-danger:hover { background: var(--red); }

.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.8rem; }

.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* --- Tables --- */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.data-table tr:hover { background: var(--bg-hover); }
.data-table tr.clickable { cursor: pointer; }

/* --- Badges --- */

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
}

.badge-human { background: #1f3a5f; color: var(--accent); }
.badge-agent { background: #1a3a2a; color: var(--green); }
.badge-attest { background: #1f3a5f; color: var(--accent); }
.badge-warning { background: #4d1f1f; color: var(--red); }

.badge-prof-1 { background: #2d2d2d; color: var(--text-muted); }
.badge-prof-2 { background: #1f3a2a; color: #6abf69; }
.badge-prof-3 { background: #1f3a5f; color: var(--accent); }
.badge-prof-4 { background: #2d1f4f; color: var(--purple); }
.badge-prof-5 { background: #4d3800; color: var(--yellow); }

/* --- Proficiency bars --- */

.proficiency-bar {
  position: relative;
  height: 22px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
  min-width: 120px;
}

.proficiency-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  border-radius: var(--radius-sm);
  transition: width 0.3s ease;
}

.proficiency-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* --- Score bars --- */

.score-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.score-label {
  width: 100px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  flex-shrink: 0;
}

.score-bar {
  flex: 1;
  height: 8px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  background: var(--green);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.score-value {
  width: 36px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  flex-shrink: 0;
}

/* --- Steps (for guided flows) --- */

.steps {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.step {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.step.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}

.step.done {
  background: var(--green-dim);
  color: #fff;
  border-color: var(--green);
}

/* --- Option cards (for selection UI) --- */

.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.option-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.15s;
}

.option-card:hover {
  border-color: var(--text-dim);
  background: var(--bg-hover);
}

.option-card.selected {
  border-color: var(--accent);
  background: rgba(88, 166, 255, 0.08);
}

.option-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.option-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

/* --- Proficiency selector --- */

.prof-selector {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.prof-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
  min-width: 80px;
}

.prof-option:hover { border-color: var(--text-dim); }
.prof-option.selected { border-color: var(--accent); background: rgba(88, 166, 255, 0.08); }

.prof-option .level {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.prof-option .name {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Empty state --- */

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* --- Key display --- */

.key-display {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  word-break: break-all;
  cursor: pointer;
}

.key-display:hover { border-color: var(--accent); }

/* --- Review panel (pre-sign) --- */

.review-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.review-row {
  display: flex;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}

.review-row:last-child { border-bottom: none; }

.review-key {
  width: 120px;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.review-val {
  font-size: 0.9rem;
  flex: 1;
  word-break: break-word;
}

/* --- JSON display --- */

.json-display {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 400px;
  overflow-y: auto;
}

/* --- Taxonomy tree --- */

.domain-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.domain-header {
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.15s;
}

.domain-header:hover { background: var(--bg-hover); }

.domain-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
}

.domain-header .count {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.domain-header .arrow {
  transition: transform 0.2s;
  color: var(--text-dim);
}

.domain-item.expanded .domain-header .arrow {
  transform: rotate(90deg);
}

.domain-skills {
  display: none;
  padding: 0.5rem 1rem 0.75rem;
  background: var(--bg);
}

.domain-item.expanded .domain-skills {
  display: block;
}

.skill-chip {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  margin: 0.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Page title --- */

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* --- Stat grid --- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* --- Responsive --- */

@media (max-width: 640px) {
  .header-inner { gap: 0.5rem; }
  nav a { padding: 0.3rem 0.5rem; font-size: 0.8rem; }
  .form-row { grid-template-columns: 1fr; }
  .option-grid { grid-template-columns: 1fr; }
  .prof-selector { justify-content: center; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .header-status { display: none; }
}