:root{
  --bg:#f4f6fb;--card:#fff;--ink:#16203a;--mute:#6b7691;--line:#e3e8f2;
  --brand:#4f46e5;--brand2:#7c3aed;--ok:#0f9d58;--warn:#d98a00;--bad:#d93025;--info:#1a73e8;
  --r:14px;--shadow:0 6px 24px rgba(30,41,90,.07);
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0e1424;--card:#161e34;--ink:#e8ecf8;--mute:#8e9ac0;--line:#26304e;--shadow:0 6px 24px rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;margin:0 0 .6em}
.ptitle{font-size:1.5rem;margin-bottom:1rem}

/* topbar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:12px;padding:10px 16px;
  background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;padding-top:max(10px,env(safe-area-inset-top))}
.topbar .brand{color:#fff;font-weight:700;font-size:1.1rem}
.topbar .brand small{background:rgba(255,255,255,.2);padding:1px 6px;border-radius:6px;font-size:.65rem;margin-left:6px}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:0 4px}
.top-right{margin-left:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.chip{background:rgba(255,255,255,.2);color:#fff;padding:5px 12px;border-radius:99px;font-size:.85rem;font-weight:600}
.chip.ghost{background:rgba(255,255,255,.1)}
.chip:hover{text-decoration:none;background:rgba(255,255,255,.3)}

/* shell */
.shell{display:flex;min-height:calc(100vh - 54px)}
.side{width:230px;flex:none;background:var(--card);border-right:1px solid var(--line);padding:14px 10px;position:sticky;top:54px;align-self:flex-start;height:calc(100vh - 54px);overflow:auto}
.side a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:10px;color:var(--ink);font-weight:500;margin-bottom:2px}
.side a:hover{background:var(--bg);text-decoration:none}
.side a.on{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}
.side .ico{width:22px;text-align:center}
.main{flex:1;min-width:0;padding:22px;max-width:1280px;margin:0 auto;width:100%}
.scrim{display:none}

/* cards, grid */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--shadow);margin-bottom:18px}
.card h2{font-size:1.05rem}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.stat .n{font-size:1.6rem;font-weight:700}
.stat .l{color:var(--mute);font-size:.85rem}

/* forms */
label{display:block;font-weight:600;font-size:.88rem;margin:12px 0 5px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit}
textarea{min-height:90px;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88rem}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--brand) 40%,transparent);border-color:var(--brand)}
.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.hint{color:var(--mute);font-size:.8rem;margin-top:4px}
.btn{display:inline-block;border:0;cursor:pointer;background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;padding:10px 18px;border-radius:10px;font-weight:600;font:inherit;font-weight:600;text-align:center}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.sm{padding:6px 12px;font-size:.85rem}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn.danger{background:var(--bad)}
.btn.ok{background:var(--ok)}
.btn.warn{background:var(--warn)}
.btn.block{display:block;width:100%}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
form.inline{display:inline}

/* tables → cards on mobile */
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--mute);white-space:nowrap}
tr:last-child td{border-bottom:0}
code,.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.85em}
pre{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px;overflow:auto;max-height:420px;font-size:.82rem;white-space:pre-wrap;word-break:break-word}

.badge{display:inline-block;padding:2px 10px;border-radius:99px;font-size:.75rem;font-weight:700;text-transform:capitalize}
.badge.ok{background:#e3f6ec;color:#0a7a43}.badge.warn{background:#fff3d6;color:#9a6700}
.badge.bad{background:#fde7e5;color:#b3261e}.badge.info{background:#e3effd;color:#1558b0}.badge.mute{background:#e9ecf3;color:#59627a}
@media (prefers-color-scheme:dark){
  .badge.ok{background:#12372a;color:#6be2a4}.badge.warn{background:#3f3210;color:#ffd166}
  .badge.bad{background:#451c1a;color:#ff9a92}.badge.info{background:#142a49;color:#8ab8ff}.badge.mute{background:#252d47;color:#a6b0cf}
}
.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px;font-weight:500}
.alert.ok{background:#e3f6ec;color:#0a7a43}.alert.bad{background:#fde7e5;color:#b3261e}.alert.warn{background:#fff3d6;color:#9a6700}.alert.info{background:#e3effd;color:#1558b0}
.pager{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.pager a{padding:5px 11px;border:1px solid var(--line);border-radius:8px;background:var(--card)}
.pager a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.bar{height:8px;background:var(--line);border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2))}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 14px}
.kv dt{color:var(--mute)}.kv dd{margin:0;word-break:break-word}
.msg{padding:10px 14px;border-radius:12px;margin-bottom:10px;max-width:88%;white-space:pre-wrap;word-break:break-word}
.msg.user{background:var(--bg);border:1px solid var(--line)}
.msg.admin{background:color-mix(in srgb,var(--brand) 14%,var(--card));margin-left:auto}
.msg small{display:block;color:var(--mute);margin-bottom:3px}
.planpick{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.plan{border:2px solid var(--line);border-radius:var(--r);padding:14px;cursor:pointer;background:var(--card);display:block;margin:0;font-weight:400}
.plan input{display:none}
.plan:has(input:checked){border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 25%,transparent)}
.plan b{font-size:1.05rem}.plan .price{font-size:1.4rem;font-weight:700;color:var(--brand);margin:6px 0}
.plan ul{margin:0;padding-left:18px;color:var(--mute)}

/* public / auth */
.pubmain{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(1200px 500px at 10% -10%,color-mix(in srgb,var(--brand) 25%,transparent),transparent),var(--bg)}
.authbox{width:100%;max-width:420px}
.authbox .card{padding:26px}
.authbox h1{text-align:center;font-size:1.5rem}
.authbox .sub{text-align:center;color:var(--mute);margin-top:-6px;margin-bottom:10px}

/* responsive */
@media (max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){
  .burger{display:block}
  .side{position:fixed;left:0;top:0;bottom:0;height:100%;z-index:50;transform:translateX(-102%);transition:transform .2s;padding-top:70px;width:250px;box-shadow:var(--shadow)}
  .side.open{transform:none}
  .scrim.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:40}
  .main{padding:14px}
  .g2,.g3{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}.kv dt{margin-top:6px;font-size:.8rem}
  .msg{max-width:100%}
  table.rs thead{display:none}
  table.rs,table.rs tbody,table.rs tr,table.rs td{display:block;width:100%}
  table.rs tr{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:6px 4px;background:var(--card)}
  table.rs td{border:0;padding:5px 10px;display:flex;justify-content:space-between;gap:12px;text-align:right}
  table.rs td::before{content:attr(data-l);color:var(--mute);font-size:.75rem;text-transform:uppercase;text-align:left;flex:none}
}
@media (max-width:480px){.g4{grid-template-columns:1fr 1fr}.top-right .chip.ghost{display:none}.ptitle{font-size:1.25rem}}