:root {
  --page-bg: #f7f8fb;
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-radius: 16px;
  --card-padding: 16px;
  --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.07);
  --text-primary: #0f172a;
  --text-muted: #64748b;
  --section-gap: 24px;
  --row-gap: 8px;
  --accent: #0f172a;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--page-bg);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
}

main, section {
  gap: var(--section-gap);
}

.ml-shell {
  min-height: 100vh;
  background: linear-gradient(180deg, rgba(255,255,255,0.85), var(--page-bg));
}

.ml-page {
  margin: 0 auto;
  padding: 24px 16px 48px;
  max-width: 1200px;
}

.ml-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--shadow-soft);
}

.ml-card-muted {
  background: #f8fafc;
}

.ml-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.ml-subtitle {
  font-size: 14px;
  color: var(--text-muted);
}

.ml-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--row-gap);
}

.ml-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 14px;
  gap: 8px;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.ml-btn:focus-visible {
  outline: 2px solid #111827;
  outline-offset: 2px;
}

.ml-btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.ml-btn-primary:hover {
  background: #111827;
  transform: translateY(-1px);
}

.ml-btn-secondary {
  background: #f8fafc;
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.ml-btn-secondary:hover {
  background: #eef2ff;
  transform: translateY(-1px);
}

.ml-input {
  width: 100%;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 14px;
  transition: border-color 120ms ease, box-shadow 120ms ease;
  background: #ffffff;
}

.ml-input:focus {
  outline: none;
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.ml-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #475569;
  text-transform: uppercase;
}

.ml-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.ml-divider {
  height: 1px;
  width: 100%;
  background: var(--card-border);
}

header.ml-header {
  border-bottom: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}

.ml-collapsible {
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: #ffffff;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.ml-collapsible__summary {
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.ml-collapsible__summary:focus-visible {
  outline: 2px solid #0f172a;
  outline-offset: 4px;
}

.ml-collapsible__summary::-webkit-details-marker {
  display: none;
}

.ml-collapsible__summary:hover {
  background: #f8fafc;
}

.ml-collapsible__content {
  padding: 0 18px 18px;
  border-top: 1px solid var(--card-border);
  background: #ffffff;
}

.journey-node {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.ml-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef2ff;
  color: #4338ca;
  font-size: 12px;
  font-weight: 600;
}

.modal-surface {
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
}

.ml-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #f4f4f5;
  color: #111827;
  font-size: 12px;
  font-weight: 600;
}

.ml-chip-muted {
  background: #f3f4f6;
  color: #6b7280;
}

.ml-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}