*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
:root{
  --bg:#202124;--sb:#2d2e30;--mr:#303134;--ms:#004a77;
  --tx:#e8eaed;--tm:#9aa0a6;--ac:#8ab4f8;--bd:#3c4043;
  --qb:#1a3a5c;--ql:#4a9eff;
  --st:env(safe-area-inset-top,0px);--sb2:env(safe-area-inset-bottom,0px)
}
html{height:100%;height:-webkit-fill-available}
body{height:100%;height:-webkit-fill-available;font-family:'Google Sans',Roboto,-apple-system,sans-serif;background:var(--bg);color:var(--tx);overflow:hidden;font-size:14px;overscroll-behavior:none;-webkit-overflow-scrolling:auto}
#app{display:flex;height:100vh;height:-webkit-fill-available;height:100dvh;overscroll-behavior:none}

/* ── Sidebar ── */
#sidebar{width:280px;min-width:280px;background:var(--sb);border-right:1px solid var(--bd);display:flex;flex-direction:column;z-index:10;height:100%}
#sh{padding:10px 12px;padding-top:calc(10px + var(--st));display:flex;align-items:center;gap:8px;flex-shrink:0}
#sh h2{font-size:18px;font-weight:400;flex:1;color:var(--tx)}
#me-info{display:flex;align-items:center;gap:4px;flex-shrink:0}
#me-name{font-size:12px;color:var(--tm);max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#logout-btn,#new-chat-btn{background:none;border:none;color:var(--tm);font-size:20px;cursor:pointer;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .15s}
#logout-btn:hover,#new-chat-btn:hover{background:rgba(255,255,255,.08);color:var(--tx)}
#drive-btn{color:var(--tm);font-size:18px;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;transition:background .15s}
#drive-btn:hover{background:rgba(255,255,255,.08);color:var(--tx)}
#sh .ic{width:36px;height:36px;border-radius:50%;background:var(--ac);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
#sb2{padding:8px 12px;flex-shrink:0}
#si{width:100%;padding:8px 14px;border-radius:20px;border:none;background:rgba(255,255,255,.08);color:var(--tx);font-size:14px;outline:none;-webkit-appearance:none}
#si::placeholder{color:var(--tm)}
#si:focus{background:rgba(255,255,255,.12)}
.cl{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
.ci{display:flex;align-items:center;gap:12px;padding:8px 12px;cursor:pointer;border-radius:0;min-height:64px;-webkit-user-select:none;user-select:none;transition:background .1s}
.ci:hover{background:rgba(255,255,255,.06)}
.ci:active{background:rgba(255,255,255,.1)}
.ci.a{background:rgba(138,180,248,.15)}
.av{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex-shrink:0;color:#fff;letter-spacing:.5px}
.cn{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cp{font-size:12px;color:var(--tm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px}
.cm{font-size:11px;color:var(--tm);white-space:nowrap}
.bg{background:var(--ac);color:#202124;font-size:10px;font-weight:700;padding:1px 6px;border-radius:10px;margin-top:3px;display:inline-block;min-width:18px;text-align:center}
.search-loading{padding:16px;text-align:center;color:var(--tm);font-size:13px}

/* ── Sidebar skeleton loader ── */
.skel-row{display:flex;align-items:center;gap:12px;padding:10px 12px;min-height:64px}
.skel-av{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);flex-shrink:0;animation:skel-pulse 1.4s ease-in-out infinite}
.skel-lines{flex:1;display:flex;flex-direction:column;gap:8px}
.skel-line{height:10px;border-radius:6px;background:rgba(255,255,255,.08);animation:skel-pulse 1.4s ease-in-out infinite}
.skel-name{width:55%}
.skel-preview{width:80%;animation-delay:.15s}
.skel-row:nth-child(2) .skel-av,.skel-row:nth-child(2) .skel-line{animation-delay:.1s}
.skel-row:nth-child(3) .skel-av,.skel-row:nth-child(3) .skel-line{animation-delay:.2s}
.skel-row:nth-child(4) .skel-av,.skel-row:nth-child(4) .skel-line{animation-delay:.3s}
.skel-row:nth-child(5) .skel-av,.skel-row:nth-child(5) .skel-line{animation-delay:.4s}
@keyframes skel-pulse{0%,100%{opacity:.4}50%{opacity:.9}}
.search-header{padding:6px 16px;font-size:11px;color:var(--tm);text-transform:uppercase;letter-spacing:.5px}
.search-result .cp mark{background:rgba(138,180,248,.3);color:var(--tx);border-radius:2px;font-style:normal}

/* ── Chat area ── */
#ca{flex:1;display:flex;flex-direction:column;min-width:0;height:100%;position:relative}
#ch{padding:8px 16px;padding-top:calc(8px + var(--st));border-bottom:1px solid var(--bd);display:flex;align-items:center;gap:10px;background:var(--sb);flex-shrink:0;min-height:52px}
.bb{display:none;background:none;border:none;color:var(--tx);font-size:22px;cursor:pointer;padding:6px;margin:-6px 0;line-height:1;border-radius:50%;width:36px;height:36px;display:none;align-items:center;justify-content:center}
.bb:hover{background:rgba(255,255,255,.08)}
#ch .av{width:32px;height:32px;font-size:12px}
#hn{font-size:15px;font-weight:500}
#hs{font-size:11px;color:var(--tm)}

/* ── Messages ── */
#ms{flex:1;overflow-y:auto;padding:8px 16px 12px;display:flex;flex-direction:column;gap:0;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;scroll-behavior:auto;will-change:scroll-position}
/* ── Loading screen ── */
.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;height:100%;gap:14px;padding:40px}
.loading-av{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;color:#fff;flex-shrink:0}
.loading-name{font-size:18px;font-weight:500;color:var(--tx)}
.loading-hint{font-size:13px;color:var(--tm)}
.loading-dots{display:flex;gap:7px;align-items:center}
.loading-dots span{width:8px;height:8px;border-radius:50%;background:var(--ac);display:block;animation:bounce 1.1s ease-in-out infinite}
.loading-dots span:nth-child(2){animation-delay:.18s}
.loading-dots span:nth-child(3){animation-delay:.36s}
@keyframes bounce{0%,80%,100%{transform:scale(0.7);opacity:.4}40%{transform:scale(1);opacity:1}}

/* Date divider */
.dd{text-align:center;margin:16px 0 10px;display:flex;align-items:center;gap:12px}
.dd::before,.dd::after{content:'';flex:1;height:1px;background:var(--bd)}
.dd span{font-size:11px;color:var(--tm);white-space:nowrap;font-weight:500}

/* ── Message row ── */
.mrow{display:flex;gap:6px;margin-bottom:1px;align-items:flex-end;width:100%}
.mrow.s{flex-direction:row-reverse}
.mrow.gap{margin-top:14px}

/* Avatar slot — always reserves space, visibility toggled */
.mrow .mav{width:28px;height:28px;font-size:10px;flex-shrink:0;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;color:#fff;visibility:hidden}
.mrow.show-av .mav{visibility:visible}

/* Column: sender name + bubble + timestamp */
.mcol{display:flex;flex-direction:column;min-width:0}
.mrow.s .mcol{align-items:flex-end}
.mrow.r .mcol{align-items:flex-start}

/* Sender name */
.sn{font-size:11px;font-weight:500;color:var(--ac);margin-bottom:3px;padding:0 2px}

/* ── Bubble ── */
/* max-width in vw avoids the parent-width circular sizing issue */
.m{max-width:min(60vw,460px);padding:7px 12px;border-radius:18px;font-size:14px;line-height:1.45;word-wrap:break-word;word-break:break-word}
.mrow.s .m{background:var(--ms);border-bottom-right-radius:4px;color:#dce8ff}
.mrow.r .m{background:var(--mr);border-bottom-left-radius:4px}
/* First in group: full radius on the "group" corner */
.mrow.s.first .m{border-bottom-right-radius:18px}
.mrow.r.first .m{border-bottom-left-radius:18px}
/* Middle: tight radius on both conversation-side corners */
.mrow.mid.s .m{border-radius:18px 4px 4px 18px}
.mrow.mid.r .m{border-radius:4px 18px 18px 4px}

/* Timestamp */
.t{font-size:11px;color:var(--tm);margin-top:2px;display:flex;align-items:center;gap:4px;padding:0 2px}

/* Message text */
.c{white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}
.c a{color:var(--ac);text-decoration:none}
.c a:hover{text-decoration:underline}

/* ── Quote block ── */
.quote-block{background:var(--qb);border-left:3px solid var(--ql);border-radius:6px;padding:5px 9px;margin-bottom:5px}
.quote-sender{font-size:11px;font-weight:600;color:var(--ql);margin-bottom:2px}
.quote-text{font-size:12px;color:#9fc4e8;line-height:1.35;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;word-break:break-word}

/* ── Delete button ── */
.del-btn{background:none;border:none;color:var(--tm);font-size:10px;cursor:pointer;padding:0 2px;opacity:.5;transition:opacity .15s;line-height:1}
.del-btn:hover{opacity:1;color:#f28b82}

/* ── Video pill ── */
.media-pill{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.07);border-radius:10px;padding:6px 12px;font-size:13px;color:var(--tm)}

/* ── GIF / image ── */
.gif-wrap{display:inline-flex;flex-direction:column}
.gif-link-wrap{display:block;border-radius:10px;overflow:hidden;line-height:0}
.tenor-gif{border-radius:10px;border:none;background:#111;display:block;max-width:220px;pointer-events:none}
.gif-img{max-width:220px;max-height:220px;border-radius:10px;display:block;object-fit:contain}

/* ── Scroll-to-bottom ── */
/* absolute inside #ca (position:relative) so it stays above #inp when keyboard opens on iOS */
#scb{position:absolute;bottom:76px;right:14px;width:38px;height:38px;border-radius:50%;background:var(--sb);border:1px solid var(--bd);color:var(--tx);font-size:16px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.5);z-index:20;pointer-events:auto}
#scb.v{display:flex}

/* ── Input bar ── */
#inp{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;padding-bottom:calc(10px + var(--sb2));border-top:1px solid var(--bd);background:var(--sb);flex-shrink:0}
#ti{flex:1;padding:9px 14px;border-radius:20px;border:1px solid var(--bd);background:var(--bg);color:var(--tx);font-size:14px;outline:none;-webkit-appearance:none;resize:none;max-height:120px;overflow-y:auto;font-family:inherit;line-height:1.4}
#ti:focus{border-color:var(--ac)}
#ti::placeholder{color:var(--tm)}
#sb3{width:40px;height:40px;border-radius:50%;background:var(--ac);border:none;color:#202124;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}
#sb3:hover{background:#a8c7fa}
#sb3:active{opacity:.8}

/* ── Name modal ── */
#nm-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
#nm-box{background:#2d2e30;border-radius:16px;padding:32px 28px;text-align:center;max-width:360px;width:100%;box-shadow:0 8px 32px rgba(0,0,0,.4)}
#nm-logo{font-size:44px;margin-bottom:14px}
#nm-box h2{font-size:20px;font-weight:400;margin-bottom:6px}
#nm-box p{color:var(--tm);margin-bottom:22px;font-size:14px}
#nm-input{width:100%;padding:10px 14px;border-radius:10px;border:1px solid var(--bd);background:var(--bg);color:var(--tx);font-size:15px;outline:none;margin-bottom:14px;font-family:inherit}
#nm-input:focus{border-color:var(--ac)}
#nm-btn{width:100%;padding:11px;border-radius:10px;background:var(--ac);border:none;color:#202124;font-size:15px;font-weight:600;cursor:pointer}
#nm-overlay.h{display:none}

/* ── Add chat modal ── */
#ac-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
#ac-box{background:#2d2e30;border-radius:16px;padding:28px;width:100%;max-width:360px;box-shadow:0 8px 32px rgba(0,0,0,.4)}
#ac-box h3{font-size:17px;font-weight:500;margin-bottom:18px}
#ac-box label{font-size:12px;color:var(--tm);display:block;margin-bottom:5px}
#ac-name,#ac-emoji{width:100%;padding:9px 12px;border-radius:10px;border:1px solid var(--bd);background:var(--bg);color:var(--tx);font-size:14px;outline:none;font-family:inherit;margin-bottom:14px}
#ac-name:focus,#ac-emoji:focus{border-color:var(--ac)}
.ac-colors{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.ac-col{width:28px;height:28px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:border-color .15s}
.ac-col.sel{border-color:#fff}
.ac-btns{display:flex;gap:10px;justify-content:flex-end}
.ac-btns button{padding:8px 20px;border-radius:8px;border:none;cursor:pointer;font-size:14px;font-weight:500}
#ac-cancel{background:transparent;color:var(--tm)}
#ac-cancel:hover{color:var(--tx)}
#ac-save{background:var(--ac);color:#202124}
#ac-overlay.h{display:none}

/* ── Mobile ── */
@media(max-width:768px){
  #sidebar{width:100%;min-width:100%;position:absolute;top:0;left:0;height:100%;transition:transform .25s cubic-bezier(.4,0,.2,1)}
  #sidebar.h{transform:translateX(-100%);pointer-events:none}
  #ca.h{display:none}
  .bb{display:flex!important}
  .m{max-width:min(78vw,360px);font-size:14px}
  .mrow .mav{width:26px;height:26px;font-size:9px}
  #ms{padding:6px 10px 10px}
  .tenor-gif,.gif-img{max-width:200px}
  #scb{bottom:68px;right:10px}
}