:root{--ink: #1a2e28;--ink-soft: #3d5a52;--muted: #6b8179;--paper: #f3f6f2;--panel: rgba(255, 255, 255, .72);--line: rgba(26, 46, 40, .12);--accent: #0f6b5c;--accent-deep: #0a4d42;--danger: #9b2c2c;--mine: #d8efe8;--theirs: #ffffff;--shadow: 0 18px 50px rgba(26, 46, 40, .08);--font-display: "Newsreader", Georgia, serif;--font-body: "IBM Plex Sans", "Segoe UI", sans-serif;--radius: 18px}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{font-family:var(--font-body);color:var(--ink);background:radial-gradient(1200px 600px at 10% -10%,#d7ebe3 0%,transparent 55%),radial-gradient(900px 500px at 100% 0%,#e7efd8 0%,transparent 50%),linear-gradient(165deg,#eef3ee,#f7f4ec 45%,#e8eef2);background-attachment:fixed}#app{min-height:100vh;min-height:100dvh}button,input,textarea{font:inherit}button{cursor:pointer}.gate{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:24px}.gate-card{width:min(420px,100%);background:var(--panel);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);box-shadow:var(--shadow);padding:36px 28px 28px;animation:rise .55s ease-out both}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.brand{font-family:var(--font-display);font-size:clamp(2.4rem,8vw,3.2rem);font-weight:600;letter-spacing:-.03em;line-height:1;margin:0 0 10px;color:var(--ink)}.tagline{margin:0 0 28px;color:var(--ink-soft);line-height:1.5;font-size:.98rem}.field{display:grid;gap:6px;margin-bottom:14px}.field label{font-size:.82rem;font-weight:500;color:var(--muted)}.field input,.field select,.field textarea,.composer 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16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);animation:rise .4s ease-out both}.topbar h1{font-family:var(--font-display);font-size:1.35rem;margin:0;letter-spacing:-.02em}.meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.78rem;color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:#ffffff8c}.dot{width:8px;height:8px;border-radius:50%;background:#b0bdb8}.dot.on{background:#1f9d6e;box-shadow:0 0 0 3px #1f9d6e2e}.dot.warn{background:#c9851a}.main{display:grid;grid-template-columns:1fr;gap:10px;min-height:0}@media (min-width: 720px){.main{grid-template-columns:220px 1fr}.main-triple{grid-template-columns:160px 220px 1fr}.main-member{grid-template-columns:220px 1fr}}.shell-wide{max-width:1100px}.roster-panel h2{font-family:var(--font-display);font-size:1.1rem;margin:0 0 8px}.roster-list{display:grid;gap:6px}.roster-row{display:grid;grid-template-columns:1fr auto;gap:4px;align-items:stretch;border:1px solid var(--line);background:#ffffffb3;border-radius:12px;padding:2px}.roster-row.active{border-color:#0f6b5c73;background:var(--mine)}.roster-item{text-align:left;border:0;background:transparent;border-radius:10px;padding:10px 12px;color:var(--ink);font-weight:500}.roster-list>.roster-item{border:1px solid var(--line);background:#ffffffb3;border-radius:12px}.roster-list>.roster-item.active{border-color:#0f6b5c73;background:var(--mine)}.roster-item:disabled{opacity:.9;cursor:default}.btn-invite{padding:8px 10px;font-size:.8rem;align-self:center}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow);padding:16px;min-height:0}.keys-panel h2,.chat-panel .section-title{font-family:var(--font-display);font-size:1.1rem;margin:0 0 8px}.keys-panel p,.fp{margin:0 0 12px;font-size:.82rem;color:var(--ink-soft);line-height:1.45}.qr-wrap{display:grid;place-items:center;padding:8px;margin-bottom:12px;border-radius:14px;background:#ffffffa6;border:1px dashed rgba(15,107,92,.25)}.qr-wrap canvas{display:block;max-width:100%;height:auto}.keys-actions{display:grid;gap:8px}.chat-panel{display:grid;grid-template-rows:auto 1fr auto;min-height:55vh}.messages{overflow:auto;display:flex;flex-direction:column;gap:10px;padding:8px 2px 12px;min-height:240px}.msg{max-width:min(85%,420px);padding:10px 12px;border-radius:14px;border:1px solid var(--line);animation:rise .25s ease-out both}.msg.mine{align-self:flex-end;background:var(--mine)}.msg.theirs{align-self:flex-start;background:var(--theirs)}.msg .body{white-space:pre-wrap;word-break:break-word;line-height:1.45}.msg .foot{margin-top:6px;font-size:.72rem;color:var(--muted);display:flex;gap:8px;justify-content:flex-end}.msg.bad .body{color:var(--danger)}.msg-readable{cursor:pointer}.msg-readable:hover{outline:1px solid rgba(15,107,92,.25)}.text-preview{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-wrap;word-break:break-word}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#0a1210e0;display:grid;place-items:center;padding:16px;animation:rise .2s ease-out both}.lightbox-panel{position:relative;width:min(960px,100%);max-height:min(92vh,100%);overflow:auto}.lightbox-text{background:#f7faf7;color:var(--ink);border-radius:18px;padding:28px 24px 24px;box-shadow:var(--shadow)}.lightbox-text .lightbox-body{font-family:var(--font-display);font-size:clamp(1.25rem,4vw,1.75rem);line-height:1.55;white-space:pre-wrap;word-break:break-word}.lightbox-media{display:grid;justify-items:center}.lightbox-img,.lightbox-video{display:block;max-width:100%;max-height:min(88vh,100%);width:auto;height:auto;border-radius:8px;background:#000}.lightbox-close{position:sticky;top:0;float:right;margin:0 0 12px 12px;border:none;border-radius:999px;padding:8px 14px;background:#ffffffeb;color:var(--ink);font-weight:600;cursor:pointer;z-index:1}.lightbox-media .lightbox-close{position:absolute;top:8px;right:8px;float:none;margin:0}.composer{display:grid;gap:8px;padding-top:8px;border-top:1px solid var(--line)}.attach-row{display:flex;flex-wrap:wrap;gap:6px}.btn-attach{padding:8px 12px;font-size:.85rem}.composer-row{display:grid;grid-template-columns:1fr auto;gap:8px}.composer .btn-primary{width:auto;margin:0;min-width:88px}.file-card{display:grid;gap:8px}.file-title{font-weight:600;word-break:break-all}.file-meta,.file-tip,.file-countdown{font-size:.78rem;color:var(--muted)}.file-countdown{color:var(--accent-deep);font-weight:600}.file-destroyed{color:var(--muted);font-style:italic}.file-preview{display:block;max-width:100%;max-height:240px;border-radius:10px;cursor:pointer;background:#1a2e280a}.file-link{color:var(--accent-deep);font-weight:600;text-decoration:underline}.progress{height:6px;border-radius:999px;background:#1a2e2814;overflow:hidden}.progress-fill{height:100%;width:0;background:var(--accent);transition:width .15s ease}.empty{margin:auto;text-align:center;color:var(--muted);font-size:.92rem;padding:24px}.banner{padding:10px 12px;border-radius:12px;background:#c9851a1f;color:#7a4e0b;font-size:.85rem;margin-bottom:10px}.banner.err{background:#9b2c2c1a;color:var(--danger)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#14201c59;display:grid;place-items:center;padding:20px;z-index:20;animation:rise .2s ease-out both}.modal{width:min(440px,100%);background:#fbfcf9;border-radius:18px;border:1px solid var(--line);padding:20px;box-shadow:var(--shadow)}.modal h3{font-family:var(--font-display);margin:0 0 8px}.modal p{margin:0 0 12px;color:var(--ink-soft);font-size:.9rem}.modal textarea{min-height:120px;resize:vertical}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%);background:var(--ink);color:#f4faf7;padding:10px 14px;border-radius:999px;font-size:.85rem;z-index:30;animation:rise .2s ease-out both}