:root{--bg: hsl(215 25% 97%);--surface: hsl(0 0% 100%);--fg: hsl(215 25% 15%);--muted: hsl(215 20% 96%);--muted-fg: hsl(215 15% 46%);--border: hsl(215 20% 90%);--primary: hsl(208 53% 46%);--primary-hover: hsl(208 53% 40%);--primary-fg: hsl(0 0% 100%);--primary-soft: hsl(208 60% 95%);--ok: hsl(152 55% 32%);--ok-soft: hsl(152 50% 93%);--warn: hsl(32 90% 38%);--warn-soft: hsl(38 95% 92%);--closed: hsl(215 12% 45%);--closed-soft: hsl(215 16% 93%);--danger: hsl(0 70% 45%);--danger-soft: hsl(0 80% 96%);--radius: 12px;--shadow: 0 1px 2px hsl(215 30% 20% / .06), 0 4px 16px hsl(215 30% 20% / .06);--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: hsl(215 30% 8%);--surface: hsl(215 28% 12%);--fg: hsl(0 0% 96%);--muted: hsl(215 25% 16%);--muted-fg: hsl(215 15% 68%);--border: hsl(215 25% 22%);--primary: hsl(208 60% 58%);--primary-hover: hsl(208 60% 66%);--primary-fg: hsl(215 30% 8%);--primary-soft: hsl(208 40% 18%);--ok: hsl(152 50% 60%);--ok-soft: hsl(152 30% 16%);--warn: hsl(38 90% 62%);--warn-soft: hsl(38 40% 16%);--closed: hsl(215 12% 66%);--closed-soft: hsl(215 20% 18%);--danger: hsl(0 80% 68%);--danger-soft: hsl(0 40% 16%);--shadow: 0 1px 2px hsl(0 0% 0% / .3);color-scheme:dark}}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}a{color:var(--primary)}button,input,textarea,select{font:inherit;color:inherit}:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 45%,transparent);outline-offset:2px}.shell{max-width:880px;margin:0 auto;padding:0 16px 48px}.topbar{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.topbar-inner{max-width:880px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:12px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;min-width:0}.brand img{height:26px;width:auto}.brand span{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted-fg)}@media (prefers-color-scheme: dark){.brand img{filter:brightness(0) invert(1);opacity:.92}}.spacer{flex:1}.linkbtn{background:none;border:0;padding:6px 8px;border-radius:8px;color:var(--muted-fg);cursor:pointer;font-size:14px}.linkbtn:hover{background:var(--muted);color:var(--fg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;border:1px solid transparent;background:var(--primary);color:var(--primary-fg);font-weight:600;cursor:pointer;text-decoration:none}.btn:hover{background:var(--primary-hover)}.btn:disabled{opacity:.55;cursor:default}.btn.secondary{background:var(--surface);color:var(--fg);border-color:var(--border)}.btn.secondary:hover{background:var(--muted)}.btn.block{width:100%}label{display:block;font-size:14px;font-weight:600;margin:16px 0 6px}.input,.textarea{width:100%;min-height:44px;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface)}.textarea{min-height:140px;resize:vertical}.input:focus,.textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 20%,transparent)}.code-input{letter-spacing:.5em;font-size:24px;text-align:center;font-variant-numeric:tabular-nums}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.pad{padding:20px}.auth{min-height:100dvh;display:grid;place-items:center;padding:24px 16px}.auth .card{width:100%;max-width:420px;padding:28px 24px}.auth img.logo{height:34px;display:block;margin:0 auto 18px}@media (prefers-color-scheme: dark){.auth img.logo{filter:brightness(0) invert(1);opacity:.92}}h1{font-size:22px;line-height:1.25;margin:0 0 6px;letter-spacing:-.01em}h2{font-size:18px;margin:0}.lead{color:var(--muted-fg);margin:0 0 4px;font-size:15px}.hint{color:var(--muted-fg);font-size:13px;margin-top:14px}.center{text-align:center}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.stack>*+*{margin-top:12px}.page-head{display:flex;align-items:center;gap:12px;margin:22px 0 14px;flex-wrap:wrap}.page-head h1{margin:0;flex:1;min-width:180px}.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;margin-bottom:12px;scrollbar-width:none}.tab{white-space:nowrap;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 14px;font-size:14px;cursor:pointer;color:var(--muted-fg)}.tab[aria-pressed=true]{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);font-weight:600}.list{list-style:none;margin:0;padding:0}.list li+li{border-top:1px solid var(--border)}.item{display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:14px 18px;text-decoration:none;color:inherit}.item:hover{background:var(--muted)}.item .title{font-weight:600;overflow-wrap:anywhere}.item .meta{color:var(--muted-fg);font-size:13px;grid-column:1 / -1}.code{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;color:var(--muted-fg)}.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;align-self:start}.badge.open{background:var(--primary-soft);color:var(--primary)}.badge.waiting_you{background:var(--warn-soft);color:var(--warn)}.badge.closed{background:var(--closed-soft);color:var(--closed)}.thread{display:flex;flex-direction:column;gap:12px;margin:16px 0}.msg{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);overflow:hidden}.msg.outbound{border-color:color-mix(in srgb,var(--primary) 35%,var(--border))}.msg-head{display:flex;gap:8px;align-items:baseline;padding:10px 16px;background:var(--muted);font-size:14px;flex-wrap:wrap}.msg.outbound .msg-head{background:var(--primary-soft)}.msg-head strong{font-weight:600}.msg-head time{color:var(--muted-fg);font-size:13px;margin-left:auto}.msg-body{padding:14px 16px;overflow-wrap:anywhere}.msg-body pre{white-space:pre-wrap;font:inherit;margin:0}.msg-body iframe{width:100%;border:0;display:block;min-height:60px;background:#fff;border-radius:6px}.files{display:flex;gap:8px;flex-wrap:wrap;padding:0 16px 14px}.file{font-size:13px;padding:6px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);cursor:pointer}.file:hover{background:var(--muted)}.notice{padding:12px 14px;border-radius:10px;font-size:14px;margin:12px 0}.notice.error{background:var(--danger-soft);color:var(--danger)}.notice.ok{background:var(--ok-soft);color:var(--ok)}.notice.info{background:var(--muted);color:var(--muted-fg)}.empty{padding:40px 16px;text-align:center;color:var(--muted-fg)}.skeleton{height:64px;background:linear-gradient(90deg,var(--muted),var(--border),var(--muted));background-size:200% 100%;animation:sk 1.2s infinite}@keyframes sk{to{background-position:-200% 0}}@media (prefers-reduced-motion: reduce){.skeleton{animation:none}}.footer{text-align:center;color:var(--muted-fg);font-size:12px;margin-top:32px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.linkbtn{white-space:nowrap}@media (max-width: 480px){.brand span{display:none}.topbar-inner{gap:4px}}