:root{--ink:#2b2b26;--muted:#85857a;--line:#e4e4dc;--bg:#f7f7f2;--card:#fff;--accent:#2b2b26;--ok:#2f7d4f;--warn:#a15c00;--bad:#b3261e}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans Thai",sans-serif;font-size:15px;line-height:1.6;color:var(--ink);background:var(--bg)}
a{color:var(--ink)}
header.top{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--line);background:var(--card);position:sticky;top:0;z-index:5}
.brand{font-weight:700;letter-spacing:.2px}.brand small{font-weight:400;color:var(--muted);margin-left:6px}
main{max-width:980px;margin:0 auto;padding:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;margin:0 0 16px}
h1{font-size:26px;margin:.2em 0 .4em}h2{font-size:19px;margin:0 0 .6em}h3{font-size:16px;margin:1em 0 .4em}
.muted{color:var(--muted)}.small{font-size:13px}
label{display:block;font-size:13px;color:var(--muted);margin:8px 0 3px}
input,select,textarea{font:inherit;color:inherit;width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff}
textarea{min-height:70px}
input[type=checkbox]{width:auto;margin-right:6px}
button,.btn{font:inherit;cursor:pointer;border:1px solid var(--ink);background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;text-decoration:none;display:inline-block}
button.ghost,.btn.ghost{background:#fff;color:var(--ink)}button.danger{background:var(--bad);border-color:var(--bad)}
button:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}.row>*{flex:1 1 160px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}.tabs button{background:#fff;color:var(--ink);border-color:var(--line)}.tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
table{width:100%;border-collapse:collapse}td,th{padding:5px 4px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}th{font-size:12px;color:var(--muted);font-weight:500}
td input,td select{padding:5px 6px}
.pill{display:inline-block;padding:1px 8px;border-radius:99px;font-size:12px;border:1px solid var(--line)}.pill.ok{color:var(--ok);border-color:var(--ok)}.pill.warn{color:var(--warn);border-color:var(--warn)}.pill.bad{color:var(--bad);border-color:var(--bad)}
.msg{padding:10px 12px;border-radius:8px;margin:8px 0;font-size:14px}.msg.err{background:#fdecea;color:var(--bad)}.msg.ok{background:#e9f5ee;color:var(--ok)}.msg.info{background:#f1f1ea}
.chat{background:#8cabd9;border-radius:12px;padding:12px;min-height:260px;max-height:460px;overflow:auto}
.bubble{max-width:78%;padding:8px 11px;border-radius:14px;margin:6px 0;white-space:pre-wrap;font-size:14px}.bubble.me{margin-left:auto;background:#a8e27b}.bubble.bot{background:#fff}.bubble.sys{background:#fff7e0;font-size:12px;max-width:100%}
.quick{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0 8px}.quick button{background:#fff;color:#2b6cb0;border-color:#c9d8ee;border-radius:99px;padding:3px 10px;font-size:13px}
ol.steps li{margin:6px 0}code{background:#f1f1ea;padding:1px 5px;border-radius:5px;font-size:13px;word-break:break-all}
.legal h2{font-size:17px;margin-top:1.4em}.legal li{margin:4px 0}
footer{color:var(--muted);font-size:13px;text-align:center;padding:24px}
.hide{display:none!important}
@media (max-width:640px){main{padding:12px}td,th{font-size:13px}.hide-sm{display:none}}

.addfriend{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:16px 0;padding:12px;border:1px solid var(--line);border-radius:12px}
.addfriend img{background:#fff;border-radius:8px;flex:none}
.addfriend h2{margin:0 0 4px;font-size:17px}
.btn.line{background:#06c755;border-color:#06c755;color:#fff}
.addfriend>div{flex:1;min-width:220px}