:root { --accent: #1f6f5f; --accent-dark: #174f44; --bg: #f6f7f8; --fg: #1b1f23; --muted: #6b7177; --line: #e3e6e9; --card: #fff; }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--fg); font-size: 15px; line-height: 1.5; }
a { color: var(--accent); }
.top { display: flex; align-items: center; gap: 24px; padding: 14px 28px; background: #fff; border-bottom: 1px solid var(--line); }
.top .logo { font-weight: 800; font-size: 18px; color: var(--fg); text-decoration: none; letter-spacing: -.3px; }
.top nav { display: flex; gap: 6px; flex: 1; }
.top nav a { text-decoration: none; color: var(--muted); padding: 6px 12px; border-radius: 8px; font-weight: 500; }
.top nav a.on, .top nav a:hover { background: var(--bg); color: var(--fg); }
.top nav a.cta { background: var(--accent); color: #fff; }
.top .who { color: var(--muted); font-size: 14px; }
.wrap { max-width: 980px; margin: 0 auto; padding: 28px 20px 60px; }
.flash { padding: 10px 14px; border-radius: 10px; margin-bottom: 18px; }
.flash.ok { background: #e3f3ec; color: #16553f; }
.flash.err { background: #fdecec; color: #8f1d24; }
h1 { font-size: 28px; margin: 0 0 6px; letter-spacing: -.4px; }
h2 { font-size: 18px; margin: 0 0 12px; }
.lead { color: var(--muted); margin: 0 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; margin-bottom: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.stat .n { font-size: 30px; font-weight: 800; letter-spacing: -.5px; }
.stat .l { color: var(--muted); font-size: 13px; }
label { display: block; font-weight: 600; font-size: 13px; margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=url], input[type=number], select, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font: inherit; background: #fff; }
textarea { min-height: 80px; resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.btn { display: inline-block; background: var(--accent); color: #fff; border: 0; border-radius: 10px; padding: 10px 18px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--accent-dark); }
.btn.ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }
.btn.sm { padding: 6px 12px; font-size: 13px; }
pre.code { background: #0f1720; color: #e6edf3; padding: 14px 16px; border-radius: 10px; overflow-x: auto; font-size: 13px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.pill { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 8px; background: var(--bg); color: var(--muted); }
.pill.ok { background: #e3f3ec; color: #16553f; }
.pill.warn { background: #fff4e0; color: #8a5a00; }
.auth { max-width: 420px; margin: 40px auto; }
.hero { padding: 60px 0 30px; text-align: center; }
.hero h1 { font-size: 40px; margin-bottom: 14px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 auto 26px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 30px 0; }
.price { font-size: 36px; font-weight: 800; }
.thread { display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 80%; padding: 10px 14px; border-radius: 14px; white-space: pre-wrap; }
.bubble.user { align-self: flex-end; background: var(--accent); color: #fff; }
.bubble.bot { align-self: flex-start; background: #fff; border: 1px solid var(--line); }
.bubble .comps { font-size: 12px; color: var(--muted); margin-top: 4px; }
.policy { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; background: #fafbfc; }
.policy label { margin-top: 6px; }