/* Mobile-first base styles. No build step: this file is served as-is. */

:root {
  --bg: #faf8f4;
  --fg: #1f1d1a;
  --muted: #6b665e;
  --accent: #2f6b4f;
  --accent-fg: #ffffff;
  --card: #ffffff;
  --border: #e3ded5;
  --error: #b3261e;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171614;
    --fg: #f1eee8;
    --muted: #a8a299;
    --accent: #6fbf95;
    --accent-fg: #10140f;
    --card: #22201d;
    --border: #3a3631;
    --error: #ff8a80;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.5;
}

a { color: var(--accent); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.brand { font-weight: 700; text-decoration: none; color: var(--fg); }

.topnav { display: flex; align-items: center; gap: 1rem; font-size: 0.95rem; }
.topnav form { margin: 0; }

.content { padding: 1rem; max-width: 40rem; margin: 0 auto; }

h1 { font-size: 1.5rem; margin: 0.5rem 0 1rem; }

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

.field { margin-bottom: 1rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.25rem; }

input[type="text"], input[type="password"], input[type="email"] {
  width: 100%;
  padding: 0.7rem 0.75rem;   /* big touch targets on phones */
  font-size: 1rem;           /* >= 16px stops iOS from zooming in on focus */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
}

button {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-fg);
  cursor: pointer;
}

button.linkbutton {
  width: auto;
  padding: 0;
  background: none;
  color: var(--accent);
  font-weight: normal;
  font-size: inherit;
  text-decoration: underline;
}

.errors { color: var(--error); font-size: 0.95rem; }
.errors ul { margin: 0.25rem 0; padding-left: 1.25rem; }
.help { color: var(--muted); font-size: 0.875rem; }
.help ul { margin: 0.25rem 0; padding-left: 1.25rem; }
.muted { color: var(--muted); }

@media (min-width: 40rem) {
  .content { padding: 2rem 1rem; }
  button { width: auto; }
}