/* BillWatch marketing site — plain, fast, no framework. */
:root { --ink: #1a1a2e; --muted: #555; --accent: #0f766e; --bg: #fafaf7; --card: #fff; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: var(--bg); line-height: 1.6; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }
.top { border-bottom: 1px solid #e5e5e5; background: var(--card); }
.top .wrap { display: flex; justify-content: space-between; align-items: center; padding-top: .9rem; padding-bottom: .9rem; }
.brand { font-weight: 800; font-size: 1.25rem; }
nav a { margin-left: 1.25rem; color: var(--accent); text-decoration: none; }
.hero { padding: 3rem 0 2rem; }
h1 { font-size: 2.2rem; line-height: 1.2; margin: 0 0 1rem; }
.lede { font-size: 1.15rem; color: var(--muted); }
.note { background: #fef9c3; border-left: 4px solid #ca8a04; padding: .75rem 1rem; border-radius: 0 6px 6px 0; }
section { margin: 2.5rem 0; }
.cards { list-style: none; padding: 0; display: grid; gap: 1rem; }
.cards li { background: var(--card); border: 1px solid #e5e5e5; border-radius: 8px; padding: 1rem 1.25rem; }
a { color: var(--accent); }
footer { border-top: 1px solid #e5e5e5; margin-top: 3rem; padding: 1.5rem 0; color: var(--muted); font-size: .9rem; }
pre, code { background: #f1f5f9; border-radius: 4px; }
pre { padding: 1rem; overflow-x: auto; }
code { padding: .15rem .35rem; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
th, td { border: 1px solid #ddd; padding: .5rem .75rem; text-align: left; font-size: .95rem; }
th { background: #f1f5f9; }