:root{
  --bg:#fbf6f3; --card:#ffffff; --ink:#2a1f2d; --muted:#7b6b80; --line:#eadfe2;
  --mine:#8a3b6e; --mine-ink:#ffffff; --theirs:#f0e4e8; --theirs-ink:#2a1f2d;
  --accent:#8a3b6e; --danger:#c0392b; --shadow:0 6px 24px rgba(60,20,50,.12);
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#1a121c; --card:#261a29; --ink:#f4eaf1; --muted:#a995ad; --line:#3a2a3e;
    --mine:#b3528f; --mine-ink:#fff; --theirs:#33243a; --theirs-ink:#f4eaf1; --accent:#c76aa4; --shadow:none; }
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);
  font:17px/1.35 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-text-size-adjust:100%;overscroll-behavior:none}
#app{position:fixed;inset:0;display:flex;flex-direction:column}
.hidden{display:none !important}
.screen{position:absolute;inset:0;display:flex;flex-direction:column;background:var(--bg)}
.screen.center{align-items:center;justify-content:center;padding:24px;overflow:auto}
.logo{font-size:34px;font-weight:800;letter-spacing:.5px;color:var(--accent);text-align:center}
.card{width:100%;max-width:420px;background:var(--card);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.card h2{margin:0 0 6px}
.muted{color:var(--muted)} .small{font-size:14px}
.error{color:var(--danger);min-height:1.2em;margin:10px 0 0;font-size:15px}
label{display:block;margin:12px 0 0;font-size:14px;color:var(--muted)}
input,select{width:100%;margin-top:6px;padding:14px 14px;font-size:17px;border:1px solid var(--line);border-radius:12px;
  background:var(--bg);color:var(--ink);outline:none}
input:focus,select:focus{border-color:var(--accent)}
.btn{display:block;width:100%;margin-top:14px;padding:15px;font-size:17px;font-weight:600;border-radius:14px;
  border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.danger{color:var(--danger)} .btn.link{border:none;background:none;color:var(--muted)}
.btn.small{width:auto;margin:0;padding:10px 14px;font-size:15px;white-space:nowrap}
.tabs{display:flex;gap:8px;margin:14px 0 4px}
.tab{flex:1;padding:11px;border-radius:12px;border:1px solid var(--line);background:none;color:var(--muted);font-size:16px;font-weight:600}
.tab.on{background:var(--accent);border-color:var(--accent);color:#fff}
.code{font:600 17px/1.5 ui-monospace,Menlo,monospace;letter-spacing:1px;background:var(--bg);border:1px dashed var(--line);
  padding:14px;border-radius:12px;word-break:break-all;text-align:center;margin:8px 0}
.code.small{font-size:16px;padding:8px}

.bar{display:flex;align-items:center;justify-content:space-between;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;
  background:var(--card);border-bottom:1px solid var(--line)}
.title{font-weight:700;font-size:19px;display:flex;align-items:center;gap:8px}
.dot{width:9px;height:9px;border-radius:50%;background:#3cb371}.dot.off{background:#c9a227}
.icon-btn{border:none;background:none;color:var(--ink);font-size:24px;padding:8px 12px;cursor:pointer}

.msgs{flex:1;overflow-y:auto;padding:14px 12px;display:flex;flex-direction:column;gap:6px;-webkit-overflow-scrolling:touch}
.empty{margin:auto;color:var(--muted);text-align:center;padding:30px}
.day{align-self:center;color:var(--muted);font-size:13px;margin:10px 0 2px}
.b{max-width:80%;padding:10px 13px;border-radius:18px;word-wrap:break-word;overflow-wrap:anywhere;white-space:pre-wrap;position:relative}
.b.me{align-self:flex-end;background:var(--mine);color:var(--mine-ink);border-bottom-right-radius:6px}
.b.them{align-self:flex-start;background:var(--theirs);color:var(--theirs-ink);border-bottom-left-radius:6px}
.b .meta{display:flex;gap:8px;justify-content:flex-end;align-items:center;font-size:12px;opacity:.7;margin-top:3px;white-space:normal}
.b .del{border:none;background:none;color:inherit;font-size:16px;padding:0 4px;cursor:pointer;opacity:.8}
.b.bad{font-style:italic;opacity:.75}
.photo{width:min(62vw,260px);aspect-ratio:var(--ar,3/4);border-radius:14px;overflow:hidden;position:relative;cursor:pointer;
  background:linear-gradient(135deg,#6d3a5c,#c77fa5);display:flex;align-items:center;justify-content:center;text-align:center;
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.photo::before{content:"";position:absolute;inset:0;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.photo span{position:relative;color:#fff;font-weight:600;padding:8px;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.photo img{width:100%;height:100%;object-fit:cover;pointer-events:none;-webkit-touch-callout:none;user-select:none;-webkit-user-select:none;display:block}
.photo.open::before{display:none}
.note{font-size:15px;opacity:.9}

.composer{background:var(--card);border-top:1px solid var(--line);padding:8px 10px calc(10px + env(safe-area-inset-bottom))}
.opts{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.chip{display:flex;align-items:center;gap:6px;margin:0;padding:6px 10px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--muted)}
.chip select{width:auto;margin:0;padding:2px 4px;font-size:14px;border:none;background:none;color:var(--ink)}
.chip input{width:auto;margin:0}
.row{display:flex;gap:8px;align-items:center}
.row input{margin:0;border-radius:24px;padding:14px 16px}
.round{flex:none;width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:var(--bg);font-size:22px;cursor:pointer;color:var(--ink)}
.round.send{background:var(--accent);border-color:var(--accent);color:#fff}

.sheet{position:absolute;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:flex-end;z-index:20}
.sheet-card{width:100%;max-height:88%;overflow:auto;background:var(--card);border-radius:22px 22px 0 0;padding:14px 16px calc(20px + env(safe-area-inset-bottom))}
.sheet-head{display:flex;align-items:center;justify-content:space-between}
.item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:none}

.viewer{position:absolute;inset:0;background:#000;z-index:30;display:flex;align-items:center;justify-content:center}
.viewer img{max-width:100%;max-height:100%;object-fit:contain;pointer-events:none;-webkit-touch-callout:none;user-select:none}
.viewer-hint{position:absolute;bottom:calc(20px + env(safe-area-inset-bottom));color:#ddd;font-size:14px}
.lock{z-index:40}
.shield{position:absolute;inset:0;background:var(--bg);z-index:50}
.toast{position:absolute;left:50%;bottom:110px;transform:translateX(-50%);background:#222;color:#fff;padding:10px 16px;border-radius:12px;z-index:60;font-size:15px;max-width:86%;text-align:center}

.round.gifbtn{font-size:15px;font-weight:800;letter-spacing:.3px}
.gif-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:10px}
.gif-grid button{border:none;padding:0;background:var(--bg);border-radius:10px;overflow:hidden;cursor:pointer;min-height:70px}
.gif-grid img{width:100%;display:block;-webkit-touch-callout:none}
#gif-q{margin-top:10px}
.gifbox{width:min(62vw,260px);aspect-ratio:var(--ar,4/3);border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#6d3a5c,#c77fa5);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.gifbox img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}

.hb{border:none;background:none;color:inherit;font-size:17px;line-height:1;padding:2px 4px;cursor:pointer;opacity:.75}
.hb.on{opacity:1}
.b.hearted{margin-bottom:12px}
.heartbadge{position:absolute;bottom:-12px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:1px 7px;font-size:13px;line-height:1.4;box-shadow:0 1px 4px rgba(0,0,0,.15);animation:pop .25s ease-out}
.b.me .heartbadge{left:8px}
.b.them .heartbadge{right:8px}
@keyframes pop{0%{transform:scale(.4)}70%{transform:scale(1.25)}100%{transform:scale(1)}}

.barbtns{display:flex;align-items:center;gap:2px}
.ttlbadge{font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 9px;margin-right:4px}
.searchbar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--card);border-bottom:1px solid var(--line)}
.searchbar input{margin:0;padding:10px 14px;border-radius:999px;flex:1}
.searchbar .icon-btn{font-size:18px;padding:6px 8px}
.ctx{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;padding:6px 10px;border-left:4px solid var(--accent);background:var(--bg);border-radius:8px}
.ctxtxt{min-width:0}.ctxtxt div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ctx .icon-btn{font-size:18px;padding:4px 8px}
.quote{border-left:3px solid currentColor;opacity:.8;padding:2px 8px;margin:0 0 6px;font-size:14px;border-radius:3px;background:rgba(127,127,127,.15);cursor:pointer;white-space:normal;max-height:3.9em;overflow:hidden}
.quote.gone{font-style:italic;cursor:default}
.b.flash{animation:flash 1.2s}
@keyframes flash{0%,60%{box-shadow:0 0 0 3px var(--accent)}100%{box-shadow:none}}
.b .ed{font-style:italic}
.b .rp{border:none;background:none;color:inherit;font-size:16px;padding:0 4px;cursor:pointer;opacity:.8}
.small-select{width:auto;margin:0;padding:8px;font-size:15px}
.sheet.center{align-items:center;justify-content:center}
.pickbox{background:var(--card);border-radius:999px;padding:8px 10px;display:flex;gap:4px;box-shadow:var(--shadow)}
.pickbox button{border:none;background:none;font-size:30px;padding:6px 8px;border-radius:50%;cursor:pointer}
.pickbox button.on{background:var(--theirs)}
#menu-items .btn{margin-top:8px}