:root{color-scheme:dark;--bg: #0f0f1a;--surface: #181826;--surface-2: #22223a;--border: #2e2e48;--text: #f2f2f7;--text-dim: #9a9ab3;--accent: #4f46e5;--accent-2: #7c74f0;--danger: #ef4444;--success: #22c55e;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);overscroll-behavior-y:contain}.app{display:flex;flex-direction:column;height:100dvh;max-width:480px;margin:0 auto;background:var(--bg)}.screen{flex:1;overflow-y:auto;padding:16px 16px 90px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:max(12px,env(safe-area-inset-top)) 16px 12px;border-bottom:1px solid var(--border);background:var(--surface)}.topbar h1{font-size:18px;margin:0}.bottom-nav{position:sticky;bottom:0;display:flex;border-top:1px solid var(--border);background:var(--surface);padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{flex:1;text-align:center;padding:10px 0 6px;color:var(--text-dim);text-decoration:none;font-size:12px}.bottom-nav a.active{color:var(--accent-2)}.bottom-nav .icon{font-size:20px;display:block}button,input,select{font-family:inherit;font-size:16px}button{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:12px 16px;font-weight:600;cursor:pointer}button.secondary{background:var(--surface-2);color:var(--text)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--surface-2);color:var(--text)}.field{margin-bottom:14px}.field label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px;margin-bottom:12px}.error-text{color:var(--danger);font-size:14px;margin:8px 0}.hint{color:var(--text-dim);font-size:13px}.friend-row{display:flex;align-items:center;gap:12px;padding:12px;border-radius:14px;background:var(--surface);border:1px solid var(--border);margin-bottom:10px;text-decoration:none;color:var(--text);cursor:pointer}.avatar{width:42px;height:42px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.chat-thread{display:flex;flex-direction:column;gap:8px}.bubble{max-width:75%;padding:10px 14px;border-radius:16px;font-size:15px;line-height:1.35;word-wrap:break-word}.bubble.mine{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.bubble.theirs{align-self:flex-start;background:var(--surface-2);border-bottom-left-radius:4px}.composer{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border);background:var(--surface);padding-bottom:max(10px,env(safe-area-inset-bottom))}.composer input{flex:1}.snap-viewer{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;z-index:50;display:flex;align-items:center;justify-content:center}.snap-viewer img,.snap-viewer video{max-width:100%;max-height:100%}.snap-viewer .close-hint{position:absolute;top:max(16px,env(safe-area-inset-top));right:16px;color:#fff;background:#00000080;padding:6px 12px;border-radius:20px;font-size:13px}.code-display{font-size:32px;letter-spacing:4px;text-align:center;font-weight:700;padding:20px;background:var(--surface-2);border-radius:16px;margin:12px 0}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}.badge.on{background:#22c55e26;color:var(--success)}.badge.off{background:#ef444426;color:var(--danger)}.spacer{flex:1}.center-screen{min-height:100%;display:flex;flex-direction:column;justify-content:center}