:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1b2430;
  --muted: #5c6b7a;
  --accent: #0b5cab;
  --border: #d7dee6;
  --error-bg: #fdecee;
  --error-text: #8a1f2b;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.header {
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 650;
}

h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.status {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: var(--error-bg);
  color: var(--error-text);
}

.milestone-list {
  display: grid;
  gap: 0.85rem;
}

.milestone {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border);
}

.milestone:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.quarter {
  color: var(--accent);
  font-weight: 650;
}

.phase {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .milestone {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}