:root {
  --bg: #fafaf9;
  --fg: #1c1917;
  --muted: #57534e;
  --border: #e7e5e4;
  --accent: #4f46e5;
}
/* Light or dark comes from <html data-theme> (theme.js: the visitor's choice, otherwise the device's). */
:root[data-theme="dark"] { color-scheme: dark; --bg: #0c0a09; --fg: #f5f5f4; --muted: #a8a29e; --border: #292524; --accent: #818cf8; }
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
header { display: flex; align-items: center; gap: 10px; font-weight: 700; }
header img { width: 32px; height: 32px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 32px 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
p, li { color: var(--muted); }
a { color: var(--accent); }
ul { padding-left: 20px; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 14px; color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--border); margin: 56px 0 0; }
/* Details still to fill in before these pages go live. */
mark.todo { background: #fde68a; color: #78350f; padding: 0 4px; border-radius: 3px; }

/* Home page */
main.wide { max-width: 880px; }
header .header-link { margin-left: auto; font-weight: 500; font-size: 15px; }
.hero { padding: 24px 0 8px; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); max-width: 720px; }
.lead { font-size: 1.1rem; max-width: 680px; }
.small { font-size: 14px; }
.button { display: inline-block; background: var(--accent); color: #fff; font-weight: 600; text-decoration: none; padding: 12px 22px; border-radius: 10px; }
.button:hover { opacity: .9; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); counter-reset: step; }
.steps li { border: 1px solid var(--border); border-radius: 12px; padding: 16px; counter-increment: step; }
.steps li::before { content: counter(step); display: inline-flex; width: 26px; height: 26px; align-items: center; justify-content: center; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.steps strong { display: block; color: var(--fg); }
.steps span { display: block; font-size: 15px; }
.features li { margin-bottom: 6px; }
.features strong, p strong { color: var(--fg); }
.plans { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-top: 12px; }
.plan { border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.plan.best { border-color: var(--accent); }
.plan h3 { margin: 0; font-size: 1rem; }
.plan .price { margin: 6px 0 2px; font-size: 1.8rem; font-weight: 700; color: var(--fg); }
.plan .price span { font-size: 14px; font-weight: 400; color: var(--muted); }
.plan p { margin: 0; }
.badge { display: inline-block; font-size: 12px; font-weight: 600; color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; padding: 0 8px; margin-bottom: 6px; }
.note { border-left: 3px solid var(--accent); padding: 4px 0 4px 12px; }
/* The dark theme's lighter accent needs dark text to stay readable. */
[data-theme="dark"] .button, [data-theme="dark"] .steps li::before, [data-theme="dark"] .theme-switch .knob { color: #1e1b4b; }

/* The light/dark switch, first in the header (added by theme.js). */
.theme-switch { position: relative; display: inline-flex; align-items: center; width: 44px; height: 24px; flex-shrink: 0; padding: 0; border: 1px solid var(--muted); border-radius: 999px; background: var(--bg); cursor: pointer; }
.theme-switch .knob { position: absolute; left: 2px; display: flex; align-items: center; justify-content: center; width: 18px; height: 18px; border-radius: 50%; background: var(--accent); color: #fff; transition: transform .15s; }
[data-theme="dark"] .theme-switch .knob { transform: translateX(20px); }
.theme-switch .moon, [data-theme="dark"] .theme-switch .sun { display: none; }
[data-theme="dark"] .theme-switch .moon { display: block; }
header .theme-switch { margin-right: 6px; }