:root{--bg:#f3f5f7;--surface:#ffffff;--surface-2:#eef1f4;--line:#dde2e8;--fg:#18212b;--muted:#5d6977;--accent:#1f5fd1;--accent-soft:#e3ecfb;--accent-fg:#ffffff;--star:#c98a06;--unread:#1f5fd1;--danger:#c23b3b;--font-display:"Bai Jamjuree","IBM Plex Sans Thai",system-ui,sans-serif;--font-body:"IBM Plex Sans Thai",system-ui,-apple-system,"Segoe UI",sans-serif;--font-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;--shadow:0 12px 40px rgba(15,30,50,.18);color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#0f1418;--surface:#161d23;--surface-2:#1d262e;--line:#2a353f;--fg:#e6ebf0;--muted:#94a1ae;--accent:#6f9cf0;--accent-soft:#1c2a42;--accent-fg:#0b1220;--star:#e7b33c;--unread:#8fb3f5;--danger:#f08080;--shadow:0 12px 40px rgba(0,0,0,.5);color-scheme:dark}}*{box-sizing:border-box}body,html{height:100%;margin:0}body{background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:15px;line-height:1.6}button{font:inherit;color:inherit;cursor:pointer}button:disabled{opacity:.6;cursor:default}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}[hidden]{display:none!important}.app{height:100%;display:grid;grid-template-rows:auto auto 1fr}.top{gap:16px;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-top:calc(10px + env(safe-area-inset-top, 0px));border-bottom:1px solid var(--line);background:var(--surface)}.brand,.top{display:flex;align-items:center}.brand{gap:10px;font-family:var(--font-display);font-weight:700;font-size:20px;white-space:nowrap}.mark{width:32px;height:32px;border-radius:8px;background:var(--accent);color:var(--accent-fg);display:grid;place-items:center;font-size:15px}.search{flex:1 1;max-width:560px;min-width:0}.search input{width:100%;border:1px solid transparent;background:var(--surface-2);color:var(--fg);border-radius:999px;padding:9px 16px;font:inherit}.search input:focus{background:var(--surface);border-color:var(--line)}.me{margin-left:auto;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;white-space:nowrap}.me .addr{font-family:var(--font-mono)}.linkbtn{border:0;background:none;color:var(--muted);text-decoration:underline;padding:4px}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:600;font-size:13px;flex:none}.banner{background:var(--accent-soft);color:var(--fg);font-size:13px;padding:8px max(16px,env(safe-area-inset-right,0px)) 8px max(16px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--line)}.main{display:grid;grid-template-columns:220px minmax(300px,400px) 1fr;min-height:0}.folders{padding:14px 10px;display:flex;flex-direction:column;gap:4px;border-right:1px solid 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.send{align-self:flex-start;margin-top:8px}.addr-input{display:flex;align-items:center;gap:8px}.addr-input input{flex:1 1}