:root {
  --c-base:        #0d1b2a;
  --c-surface:     #1e3a4a;
  --c-text:        #c8dde8;
  --c-dim:         #5c8fa6;
  --c-accent:      #52b788;
  --c-accent-hi:   #74c99a;
  --c-overlay:     rgba(0, 0, 0, 0.65);
  --c-shadow:      rgba(0, 0, 0, 0.5);
  --c-pill:        rgba(92, 143, 166, 0.12);
  --c-pill-hover:  rgba(92, 143, 166, 0.22);
  --c-pill-border: rgba(92, 143, 166, 0.40);
  --radius: 8px;
}

* { box-sizing: border-box; }
button { font: inherit; }

html { min-height: 100%; }

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--c-base);
  color: var(--c-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

h1 {
  font-size: 2rem;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.page-intro { margin-bottom: 1.75rem; }
.page-intro p { margin: 0.4rem 0 0; color: var(--c-dim); font-size: 0.95rem; }
.page-intro a { color: var(--c-accent); }

main { flex: 1; padding: 2.5rem 0 3rem; padding-bottom: calc(3rem + 3.5rem); }

.muted { color: var(--c-dim); }
.error { color: var(--c-accent); }

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--c-base);
  border-top: 1px solid var(--c-surface);
  padding: 1rem 0;
  color: var(--c-dim);
  font-size: 0.9rem;
  z-index: 100;
}
footer p { margin: 0; }