:root{--cloud: #eef2f8;--surface: #ffffff;--ink: #1f2a44;--ink-soft: #5b6883;--line: #dbe3ef;--sky: #3b5bdb;--sky-deep: #2f49b6;--sky-tint: #e6ebff;--amber: #e8930c;--amber-tint: #fdf1dc;--danger: #d64550;--radius: 18px;--font-display: "Baloo 2", system-ui, sans-serif;--font-body: "Nunito", system-ui, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font-body);background:var(--cloud);color:var(--ink);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;border:none}input,select{font-family:inherit;font-size:16px}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--sky);outline-offset:2px}.app{max-width:560px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;background:var(--cloud)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:12px;padding:14px 16px;padding-top:calc(14px + env(safe-area-inset-top));background:var(--surface);border-bottom:1px solid var(--line)}.topbar h1{font-family:var(--font-display);font-size:20px;font-weight:700;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar.parent{background:var(--ink);color:#fff;border-bottom:none}.btn-ghost{background:transparent;color:var(--ink-soft);font-weight:700;font-size:14px;padding:8px 10px;border-radius:10px}.topbar.parent .btn-ghost{color:#cbd5ea}.btn-back{background:transparent;font-size:22px;line-height:1;color:inherit;padding:4px 8px 4px 0}.stack{padding:16px;display:flex;flex-direction:column;gap:12px;flex:1}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.btn{background:var(--sky);color:#fff;font-weight:800;font-size:16px;padding:14px 18px;border-radius:14px;width:100%;transition:transform .08s ease,background .15s ease}.btn:active{transform:scale(.97)}.btn:hover{background:var(--sky-deep)}.btn.amber{background:var(--amber)}.btn.small{width:auto;padding:8px 14px;font-size:14px;border-radius:10px}.btn.outline{background:transparent;color:var(--sky);border:2px solid var(--sky)}.btn.danger-outline{background:transparent;color:var(--danger);border:2px solid var(--danger)}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:13px;font-weight:800;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}.field input,.field select{padding:13px 14px;border:2px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);width:100%}.field input:focus{border-color:var(--sky);outline:none}.error{color:var(--danger);font-weight:700;font-size:14px}.muted{color:var(--ink-soft);font-size:14px}.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:800}.pill.ok{background:#e2f6e9;color:#1c7c3c}.pill.warn{background:var(--amber-tint);color:var(--amber)}.pill.off{background:#f0f1f4;color:var(--ink-soft)}.login{flex:1;display:flex;flex-direction:column;justify-content:center;padding:24px;gap:20px}.login .logo{text-align:center}.login .logo .plane{font-size:44px;display:inline-block;transform:rotate(-12deg)}.login h1{font-family:var(--font-display);font-size:34px;text-align:center}.login .sub{text-align:center}.role-switch{display:flex;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:4px}.role-switch button{flex:1;padding:10px;border-radius:10px;background:transparent;font-weight:800;color:var(--ink-soft)}.role-switch button.on{background:var(--sky-tint);color:var(--sky)}.avatar{width:46px;height:46px;border-radius:15px;flex-shrink:0;display:grid;place-items:center;color:#fff;font-family:var(--font-display);font-weight:700;font-size:20px;transform:rotate(-3deg)}.chat-row{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;transition:transform .08s ease}.chat-row:active{transform:scale(.98)}.chat-row .name{font-family:var(--font-display);font-weight:700;font-size:17px}.chat-row .arrow{margin-left:auto;color:var(--ink-soft);font-size:20px}.empty{text-align:center;padding:48px 24px;color:var(--ink-soft)}.empty .plane{font-size:40px;display:block;margin-bottom:12px}.chat-scroll{flex:1;overflow-y:auto;padding:16px 14px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:82%;padding:10px 14px;border-radius:18px;font-size:15.5px;line-height:1.4;overflow-wrap:anywhere}.bubble .who{font-size:12px;font-weight:800;margin-bottom:2px}.bubble .when{font-size:10.5px;opacity:.65;margin-top:3px;text-align:right}.bubble.in{align-self:flex-start;background:var(--surface);border:1px solid var(--line);border-bottom-left-radius:6px}.bubble.in .who{color:var(--sky)}.bubble.out{align-self:flex-end;background:var(--sky);color:#fff;border-bottom-right-radius:6px}.bubble.mine-other{align-self:flex-start}.composer{position:sticky;bottom:0;display:flex;gap:10px;align-items:flex-end;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.composer input{flex:1;padding:13px 16px;border:2px solid var(--line);border-radius:999px;background:var(--cloud)}.composer input:focus{border-color:var(--sky);outline:none}.send{width:48px;height:48px;border-radius:50%;background:var(--sky);color:#fff;font-size:20px;display:grid;place-items:center;transition:transform .12s ease}.send:active{transform:rotate(-20deg) scale(.92)}.send:disabled{background:var(--line)}.tabs{display:flex;gap:6px;padding:12px 16px 0}.tabs button{flex:1;padding:10px;border-radius:12px 12px 0 0;background:transparent;font-weight:800;color:var(--ink-soft);border-bottom:3px solid transparent}.tabs button.on{color:var(--amber);border-bottom-color:var(--amber)}.row-between{display:flex;align-items:center;justify-content:space-between;gap:10px}.member-checks{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.member-checks label{display:flex;align-items:center;gap:6px;font-weight:700;font-size:14px;background:var(--cloud);border:1px solid var(--line);border-radius:999px;padding:7px 13px;cursor:pointer}.member-checks input{accent-color:var(--sky);width:17px;height:17px}.history-row{padding:10px 0;border-bottom:1px solid var(--line);font-size:14.5px}.history-row:last-child{border-bottom:none}.history-row .meta{display:flex;gap:8px;align-items:baseline;margin-bottom:2px}.history-row .dir{font-size:11px;font-weight:800;padding:1px 7px;border-radius:999px}.history-row .dir.out{background:var(--sky-tint);color:var(--sky)}.history-row .dir.in{background:#e2f6e9;color:#1c7c3c}.history-row .sender{font-weight:800}.history-row .time{color:var(--ink-soft);font-size:12px;margin-left:auto}@media(prefers-reduced-motion:reduce){*{transition:none!important}}.bubble img{display:block;width:100%;max-width:260px;border-radius:12px;margin:2px 0 4px;cursor:pointer}.bubble audio{width:220px;max-width:100%;margin:2px 0}.attach-btn{width:42px;height:42px;border-radius:50%;background:var(--sky-tint);color:var(--sky);font-size:19px;display:grid;place-items:center;flex-shrink:0}.attach-btn:active{transform:scale(.92)}.recorder{position:sticky;bottom:0;display:flex;gap:12px;align-items:center;padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.rec-dot{width:12px;height:12px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite;flex-shrink:0}@keyframes pulse{50%{opacity:.25}}.rec-time{font-weight:800;font-variant-numeric:tabular-nums;flex:1}.rec-cancel{background:transparent;color:var(--ink-soft);font-weight:800;padding:8px 12px}.history-row img{max-width:160px;border-radius:10px;display:block;margin-top:4px}.history-row audio{width:220px;display:block;margin-top:4px}.uploading{align-self:flex-end;color:var(--ink-soft);font-size:13px;font-weight:700;padding:4px 8px}