:root{--bg:#ffffff;--surface:#ffffff;--surface-subtle:#f6f7fb;--tint:#f3f6ff;--ink:#0b1220;--muted:#667085;--brand:#1f2a3a;--accent:#2563eb;--accent-ink:#ffffff;--ok:#16a34a;--border:#e6e8ee;--border-strong:#d6dae4;--radius:14px;--radius-lg:18px;--s-1:8px;--s-2:12px;--s-3:16px;--s-4:24px;--s-5:32px;--s-6:48px;--s-7:64px;--shadow-lg:0 30px 80px rgba(2,6,23,.06), 0 2px 8px rgba(2,6,23,.04);--focus:0 0 0 3px rgba(37,99,235,.18)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:.1px}a{color:inherit;text-decoration:none}:focus-visible{outline:none;box-shadow:var(--focus);border-radius:10px}.shell{max-width:100%;width:100%;margin:0;padding:0 var(--s-3)}.app{display:grid;grid-template-rows:auto 1fr;min-height:100vh}.topbar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}.topbar .row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px var(--s-3)}.brand{display:flex;gap:10px;align-items:center;font-weight:900;letter-spacing:-.01em;color:var(--brand)}.badge{font-size:12px;font-weight:700;color:#1f3d8a;background:#eef4ff;border:1px solid var(--border);padding:4px 8px;border-radius:999px}.actions{display:flex;gap:8px}button.btn,a.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;background:#f3f4f6;color:var(--ink);border:1px solid var(--border);padding:10px 14px;border-radius:12px;white-space:nowrap;transition:background .15s ease,border-color .15s ease,transform .04s ease;text-decoration:none}.btn:hover{background:#eef1f5}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:#1f4fd2}.btn.ghost{background:transparent}.container{display:grid;grid-template-columns:280px minmax(0,1fr);height:100%;width:100%;max-width:none;margin:0}.sidebar{border-right:1px solid var(--border);background:#fff;display:flex;flex-direction:column;overflow:hidden}.sidebar .side-top{padding:12px;border-bottom:1px solid var(--border);display:flex;gap:8px;align-items:center;justify-content:space-between;background:#fff}.thread-list{flex:1 1 auto;min-height:0;overflow:auto;padding:8px;background:var(--surface-subtle)}.side-bottom{flex-shrink:0;margin-top:auto;padding:12px env(safe-area-inset-right,12px) calc(12px + env(safe-area-inset-bottom,0)) 12px;border-top:1px solid var(--border);background:#fff;display:grid;gap:8px}.pill{border:1px solid var(--border);padding:6px 10px;border-radius:999px;color:var(--muted);background:#fff}#backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000040;-webkit-backdrop-filter:saturate(120%) blur(2px);backdrop-filter:saturate(120%) blur(2px);z-index:9}#backdrop.hidden{display:none}@media (max-width:1200px){#menuBtn{display:inline-block!important}.sidebar{display:block!important;position:fixed;inset:0 auto 0 0;width:min(86vw,320px);transform:translate(-100%);transition:transform .25s ease;z-index:10;border-right:1px solid var(--border)}.sidebar.open{transform:translate(0)}.container{grid-template-columns:1fr}}.content{padding:24px 16px;max-width:1100px;width:100%;margin:0 auto}.grid{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width:980px){.grid{grid-template-columns:1.2fr .8fr}}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-lg)}.card h2{margin:0 0 6px;color:var(--brand);font-weight:900;letter-spacing:-.02em}.muted{color:var(--muted)}.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.alert{background:#fbfcff;border:1px solid var(--border);padding:12px 14px;border-radius:12px;color:#1f3d8a;display:none}.plans{display:grid;gap:12px;margin:10px 0 14px}@media (min-width:720px){.plans{grid-template-columns:repeat(3,1fr)}}.plan{background:#fff;border:1px solid var(--border);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:10px;cursor:pointer}.plan:hover{border-color:#d8e3ff;background:#f6f9ff}.plan.active{border-color:var(--accent);box-shadow:0 0 0 2px #2563eb2e inset;background:#fbfcff}.plan-header{display:flex;justify-content:space-between;gap:8px;align-items:baseline;flex-wrap:wrap}.plan-name{font-weight:700;color:var(--brand);white-space:nowrap}.plan-price{font-weight:800;color:#1f3d8a;white-space:nowrap}.plan-badge{font-size:11px;color:var(--primary,#2563eb);font-weight:600;width:100%}.plan-feat{color:var(--muted);font-size:12px;display:grid;gap:2px}.kv{display:flex;justify-content:space-between;gap:10px}.kv .k{color:var(--muted)}.hr{height:1px;background:var(--border);margin:14px 0}.pill.ok{color:#065f46;border-color:#a7f3d0;background:#ecfdf5}.pill.warn{color:#7c2d12;border-color:#fed7aa;background:#fff7ed}.brand img.site-logo{height:2rem;width:auto;display:block}.account-wrap{position:relative}.acct-menu{position:absolute;left:0;bottom:44px;top:auto;display:none;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:6px;box-shadow:0 8px 24px #00000014;min-width:150px;z-index:10}.account-wrap.menu-open .acct-menu{display:flex}.acct-menu .menu-item{padding:8px 12px;background:transparent;border:0;text-align:left;font-size:13px;cursor:pointer}.acct-menu .menu-item:hover{background:var(--surface-subtle);color:var(--accent)}@media (max-width: 1200px){.acct-menu{top:44px;bottom:auto}.account-row{margin-top:20px!important}}.account-row{display:flex;align-items:center;justify-content:space-between;width:100%;height:40px;padding:0 10px;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--ink);cursor:pointer;transition:background .15s ease,color .15s ease}.account-row:hover{background:var(--surface-subtle);color:var(--accent)}.acct-name{font-size:13px;font-weight:600;line-height:1.1}.acct-plan{font-size:12px;color:var(--muted);line-height:1.1}#logoutBtn{display:none!important;visibility:hidden;opacity:0;height:0;padding:0;margin:0;border:0}.sidebar{display:flex;flex-direction:column;height:100%}.alert{position:fixed;bottom:20px;right:20px;background:#ff4747;color:#fff;padding:12px 18px;border-radius:10px;font-weight:500;box-shadow:0 4px 12px #0000004d;transition:opacity .3s ease;display:none;z-index:9999}#alert-bar{height:4px;background:#fffc;border-radius:2px;margin-top:6px;width:100%;transform-origin:left}.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:4px;align-items:stretch}.plan-card{display:flex;flex-direction:column;gap:12px;padding:16px;border:1px solid var(--border, #2a2a2a);border-radius:14px;background:var(--panel, #0d0d0d);min-height:220px}.plan-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.plan-name{font-weight:600;font-size:1.05rem;white-space:nowrap}.plan-price{font-weight:700;white-space:nowrap}.plan-features{display:grid;gap:6px;font-size:.55rem;color:var(--muted, #b0b0b0);overflow:hidden;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical}.plan-features.expanded{-webkit-line-clamp:initial;max-height:none}.plan-features .feat{display:flex;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.plan-features .dot{width:.5rem;height:.5rem;border-radius:999px;margin-top:.45rem;background:currentColor;opacity:.5;flex:0 0 auto}.plan-cta{margin-top:auto;display:flex;gap:8px}.plan-cta .btn{flex:1}.plan-card,.plan-features{overflow-wrap:anywhere}@keyframes highlight-pulse{0%{box-shadow:0 0 #fbbf2499}50%{box-shadow:0 0 0 8px #fbbf2433}to{box-shadow:0 0 #fbbf2400}}.plans.highlight-pulse{animation:highlight-pulse .75s ease-in-out 2;border-radius:14px}.kv .k{color:var(--muted, #9aa0a6)}