:root{font-family:Tahoma,Arial,sans-serif;color-scheme:light dark;--bg:#f4f7fb;--card:#fff;--text:#172033;--muted:#6b7280;--accent:#5b5ce2;--mine:#e7e8ff;--other:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}body.dark{--bg:#0d1220;--card:#151c2e;--text:#eef2ff;--muted:#9ca3af;--mine:#292b62;--other:#1c2539}main{max-width:1100px;margin:auto;min-height:100vh}.card{max-width:420px;margin:10vh auto;background:var(--card);padding:28px;border-radius:24px;box-shadow:0 18px 60px #0002}.card input{width:100%;padding:14px;margin:7px 0;border:1px solid #8884;border-radius:14px;background:transparent}.row{display:flex;gap:10px}button,.attach{border:0;border-radius:14px;padding:12px 16px;background:var(--accent);color:#fff;cursor:pointer}.secondary{background:#6b7280}header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:var(--card);border-bottom:1px solid #8882}.layout{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 64px)}aside{background:var(--card);padding:12px;border-left:1px solid #8882;overflow:auto}.person{padding:12px;border-radius:14px;cursor:pointer}.person:hover{background:#8881}.chat{display:grid;grid-template-rows:50px 1fr 72px}.chat>#title{padding:14px;background:var(--card)}#msgs{overflow:auto;padding:18px}.msg{max-width:72%;padding:10px 13px;border-radius:18px;margin:8px;background:var(--other);box-shadow:0 3px 14px #0001;white-space:pre-wrap}.msg.mine{margin-right:auto;background:var(--mine)}.meta{font-size:10px;color:var(--muted);margin-top:5px}#send{display:flex;gap:8px;padding:10px;background:var(--card)}#send input[type=text],#text{flex:1;border:1px solid #8883;border-radius:18px;padding:0 15px;background:transparent}.media{max-width:260px;max-height:260px;border-radius:14px}@media(max-width:700px){.layout{grid-template-columns:100px 1fr}.msg{max-width:90%}aside h3{display:none}}
.button{display:inline-flex;align-items:center;text-decoration:none}.security-note{font-size:.78rem;opacity:.72;padding:.35rem .8rem;direction:rtl}.admin-row{display:grid;grid-template-columns:1fr auto auto;gap:.5rem;align-items:center;padding:.65rem 0;border-bottom:1px solid rgba(127,127,127,.2)}.danger{background:#7f1d1d!important}