:root{--primary:#0b8f6b;--bg:#efeae2;--in:#fff;--out:#d9fdd3;--text:#111b21;--muted:#667781;--line:#e3e6e8}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans",sans-serif;color:var(--text);background:#f0f2f5;font-size:15px}
a{color:var(--primary)}
input,textarea,select,button{font:inherit}
[hidden]{display:none!important}
.muted{color:var(--muted)}
.pad{padding:16px}

/* ---------- Auth ---------- */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100%;padding:16px;background:linear-gradient(160deg,var(--primary) 0 220px,#f0f2f5 220px)}
.auth-card{background:#fff;width:100%;max-width:380px;padding:28px 24px;border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.12);text-align:center}
.auth-card h2{margin:6px 0 8px}
.auth-card form{text-align:left;margin-top:16px}
.auth-logo{width:72px;height:72px;border-radius:50%;object-fit:cover}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
label input:not([type=checkbox]):not([type=color]),label textarea{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid #d1d7db;border-radius:8px;font-size:15px;color:var(--text);background:#fff}
label input:focus,label textarea:focus{outline:2px solid var(--primary);border-color:transparent}
label.check{display:flex;gap:8px;align-items:center;color:var(--text)}
.btn{display:inline-block;background:var(--primary);color:#fff;border:0;padding:11px 20px;border-radius:8px;cursor:pointer;font-weight:600;text-decoration:none}
.auth-card .btn{width:100%}
.btn.ghost{background:#e9edef;color:var(--text)}
.btn-sm{display:inline-block;padding:5px 10px;border-radius:6px;border:1px solid #d1d7db;background:#fff;cursor:pointer;font-size:13px;color:var(--text);text-decoration:none}
.btn-sm.danger{color:#d93025;border-color:#f3c0bc}
.btn-sm.warn{color:#b26a00;border-color:#f1d9a8}
.err{background:#fde8e7;color:#b3261e;padding:9px 12px;border-radius:8px;font-size:14px}
.ok{background:#e6f6ee;color:#11643f;padding:9px 12px;border-radius:8px}
.foot{font-size:13px;color:var(--muted);margin-top:18px}

/* ---------- Chat ---------- */
.chat-page{background:#d1d7db}
.chat-app{display:flex;flex-direction:column;height:100%;height:100dvh;max-width:900px;margin:0 auto;background:var(--bg);background-image:radial-gradient(rgba(0,0,0,.035) 1px,transparent 1px);background-size:18px 18px}
.chat-head{display:flex;align-items:center;gap:10px;background:var(--primary);color:#fff;padding:10px 14px;padding-top:max(10px,env(safe-area-inset-top));flex-shrink:0}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:#fff;flex-shrink:0;position:relative}
.avatar.letter{display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary);font-size:17px}
.head-txt{flex:1;min-width:0}
.head-txt .title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.head-txt .sub{font-size:12.5px;opacity:.85}
.me{display:flex;align-items:center;gap:10px;font-size:13px}
.me .logout{color:#fff;background:rgba(255,255,255,.18);padding:5px 10px;border-radius:6px;text-decoration:none}
.messages{flex:1;overflow-y:auto;padding:12px 4% 8px;-webkit-overflow-scrolling:touch}
.day{text-align:center;margin:10px 0}
.day span{background:#fff;color:var(--muted);font-size:12px;padding:4px 10px;border-radius:7px;box-shadow:0 1px .5px rgba(0,0,0,.13)}
.msg{display:flex;margin:3px 0;position:relative}
.msg.out{justify-content:flex-end}
.bubble{max-width:78%;background:var(--in);padding:6px 8px 4px;border-radius:8px;box-shadow:0 1px .5px rgba(0,0,0,.13);position:relative;word-wrap:break-word;overflow-wrap:anywhere}
.msg.out .bubble{background:var(--out)}
.msg.in .bubble{border-top-left-radius:0}
.msg.out .bubble{border-top-right-radius:0}
.welcome .bubble{background:#fff8d6}
.txt{white-space:normal;line-height:1.35;padding:0 2px}
.bubble img{display:block;max-width:260px;width:100%;border-radius:6px;margin-bottom:3px}
.bubble audio{display:block;width:250px;max-width:100%;height:40px}
.meta{font-size:11px;color:var(--muted);text-align:right;margin-top:2px}
.tick{color:#8696a0;letter-spacing:-3px;margin-left:3px}
.tick.read{color:#53bdeb}
.del{position:absolute;top:-6px;background:#fff;border:1px solid #ddd;border-radius:50%;width:22px;height:22px;font-size:11px;cursor:pointer;color:#d93025;opacity:0;transition:.15s}
.msg.out .del{left:-28px}
.msg.in .del{right:-28px}
.msg:hover .del{opacity:1}
@media(hover:none){.del{opacity:.6}}
.msg .bubble{position:relative}
.msg.in .bubble .del{right:-28px;left:auto}
.msg.out .bubble .del{left:-28px}

.c-bar{flex-shrink:0;background:#f0f2f5;padding:8px 10px;padding-bottom:max(8px,env(safe-area-inset-bottom))}
.c-normal,.c-rec{display:flex;align-items:flex-end;gap:8px}
.c-rec{display:none;align-items:center;background:#fff;border-radius:24px;padding:4px 4px 4px 8px}
.c-bar.recording .c-normal{display:none}
.c-bar.recording .c-rec{display:flex}
.c-bar.sending{opacity:.6;pointer-events:none}
.c-input{flex:1;resize:none;border:0;border-radius:22px;padding:11px 16px;font-size:15px;max-height:120px;line-height:1.35;background:#fff;outline:none}
.icon-btn{display:flex;align-items:center;justify-content:center;width:42px;height:44px;color:#54656f;cursor:pointer;border:0;background:none;margin:0;flex-shrink:0}
.round-btn{width:44px;height:44px;border-radius:50%;border:0;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}
.rec-dot{width:10px;height:10px;border-radius:50%;background:#e53935;animation:blink 1s infinite}
.c-rec-time{font-variant-numeric:tabular-nums;font-weight:600}
.rec-label{flex:1;color:var(--muted);font-size:14px}
@keyframes blink{50%{opacity:.2}}

/* ---------- Admin ---------- */
.admin-page{display:flex;flex-direction:column;height:100dvh}
.admin-nav{display:flex;align-items:center;gap:4px;background:#fff;border-bottom:1px solid var(--line);padding:0 12px;overflow-x:auto;flex-shrink:0}
.admin-nav .brand{font-weight:700;margin-right:14px;white-space:nowrap}
.admin-nav .brand small{color:var(--muted);font-weight:400}
.admin-nav a{padding:14px 12px;text-decoration:none;color:var(--text);white-space:nowrap;border-bottom:3px solid transparent}
.admin-nav a.on{border-color:var(--primary);color:var(--primary);font-weight:600}
.badge{display:inline-block;background:#25d366;color:#fff;font-size:11px;font-weight:700;min-width:20px;padding:2px 6px;border-radius:10px;text-align:center}
.flash{background:#e6f6ee;color:#11643f;padding:10px 16px;font-size:14px;flex-shrink:0;user-select:all}
.flash.bad{background:#fde8e7;color:#b3261e}
.inbox{flex:1;display:flex;min-height:0}
.threads{width:340px;border-right:1px solid var(--line);background:#fff;display:flex;flex-direction:column;flex-shrink:0}
.threads input{margin:10px;padding:9px 12px;border-radius:8px;border:0;background:#f0f2f5}
#threadList{overflow-y:auto;flex:1}
.thread{display:flex;gap:12px;padding:10px 14px;cursor:pointer;border-bottom:1px solid #f2f2f2}
.thread:hover{background:#f5f6f6}
.thread.on{background:#e9edef}
.thread .avatar{background:#dfe5e7}
.dot{position:absolute;right:0;bottom:0;width:11px;height:11px;border-radius:50%;background:#25d366;border:2px solid #fff}
.t-main{flex:1;min-width:0}
.t-top,.t-bot{display:flex;align-items:center;gap:6px}
.t-top b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.t-time{margin-left:auto;font-size:12px;color:var(--muted)}
.t-last{flex:1;font-size:13.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag{font-size:11px;background:#fde8e7;color:#b3261e;padding:1px 6px;border-radius:4px}
.tag.ok{background:#e6f6ee;color:#11643f}
.conv{flex:1;display:flex;min-width:0}
.conv .chat-app{max-width:none;width:100%;height:100%}
.conv .empty{margin:auto;color:var(--muted)}
.back{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer;padding:0 6px 0 0}
.page{flex:1;overflow-y:auto;padding:16px;max-width:1100px;width:100%;margin:0 auto}
.card{background:#fff;border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.card h3{margin:0 0 14px}
.card>input[type=search]{padding:9px 12px;border:1px solid #d1d7db;border-radius:8px;width:100%;max-width:300px;margin-bottom:10px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:4px 16px;align-items:end}
.grid .full{grid-column:1/-1}
.grid>div{margin-bottom:12px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12.5px}
.actions{display:flex;gap:5px;flex-wrap:wrap}
.actions form{margin:0}
.modal{border:0;border-radius:12px;padding:20px;width:min(420px,92vw);white-space:normal}
.modal::backdrop{background:rgba(0,0,0,.4)}
.modal .row{display:flex;gap:8px}
.logo-prev{width:48px;height:48px;border-radius:50%;object-fit:cover;vertical-align:middle}
input[type=color]{width:60px;height:38px;border:0;padding:0;margin-top:5px;display:block;background:none}

@media(max-width:760px){
  .threads{width:100%;border:0}
  .conv{display:none}
  .inbox.open .threads{display:none}
  .inbox.open .conv{display:flex}
  .back{display:block}
  .messages{padding:10px 8px}
  .bubble{max-width:86%}
  .me span{display:none}
  .admin-nav .brand{display:none}
}