:root{
  --navy:#1E3A5C; --blue:#2D5A8A; --grey:#4A4A4A; --bg:#F4F6F9; --card:#FFFFFF;
  --line:#E3E8EF; --text:#16202B; --muted:#6B7686; --ok:#2E8B57;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:'Nunito',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  -webkit-text-size-adjust:100%;}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.app{min-height:100vh;display:flex;flex-direction:column}
.hidden{display:none !important}

/* ---------- Welcome ---------- */
.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;
  padding:48px 24px 32px;text-align:center;background:linear-gradient(180deg,var(--navy) 0%,var(--navy) 220px,var(--bg) 220px);}
.welcome .mark{width:84px;height:84px;border-radius:20px;box-shadow:0 6px 20px rgba(0,0,0,.25);margin-bottom:16px}
.welcome h1{color:#fff;font-size:26px;font-weight:800;margin:0 0 4px;letter-spacing:.2px}
.welcome .tag{color:#CFE0F2;font-size:14.5px;margin:0 0 28px;max-width:320px}
.welcome .pitch{background:var(--card);border-radius:16px;padding:20px 18px;margin-top:8px;max-width:360px;
  box-shadow:0 2px 14px rgba(20,40,70,.08);text-align:left}
.welcome .pitch p{margin:0 0 10px;font-size:14.5px;line-height:1.5;color:var(--text)}
.welcome .pitch p:last-child{margin-bottom:0}
.welcome .pitch b{color:var(--blue)}
.btnrow{display:flex;flex-direction:column;gap:12px;width:100%;max-width:320px;margin-top:22px}
.btn{display:block;width:100%;padding:14px 18px;border-radius:12px;border:none;font-family:inherit;
  font-size:16px;font-weight:700;cursor:pointer;text-align:center}
.btn.primary{background:var(--blue);color:#fff}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--blue)}
.btn.link{background:transparent;color:#CFE0F2;text-decoration:underline;font-weight:600;font-size:14px;padding:6px}

/* ---------- Login ---------- */
.login{flex:1;display:flex;flex-direction:column;justify-content:center;padding:28px 24px;max-width:420px;margin:0 auto;width:100%}
.login .back{color:var(--muted);font-size:14px;font-weight:700;margin-bottom:18px}
.login .mark-sm{width:52px;height:52px;border-radius:13px;margin-bottom:14px}
.login h2{font-size:21px;font-weight:800;margin:0 0 4px;color:var(--navy)}
.login .sub{color:var(--muted);font-size:14px;margin:0 0 22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--grey);margin-bottom:6px}
.field input{width:100%;padding:13px 14px;border-radius:11px;border:1.5px solid var(--line);
  font-family:inherit;font-size:15.5px;background:#fff}
.field input:focus{outline:none;border-color:var(--blue)}
.err{color:#B3261E;font-size:13.5px;margin:4px 0 10px;min-height:1px}
.divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12.5px;margin:20px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- Shell / dashboard ---------- */
.shell{flex:1;display:flex;flex-direction:column;max-width:480px;margin:0 auto;width:100%}
.topbar{display:flex;align-items:center;gap:10px;padding:14px 18px;background:var(--navy);color:#fff}
.topbar .mark-xs{width:30px;height:30px;border-radius:8px}
.topbar .title{font-weight:800;font-size:16.5px;flex:1}
.topbar .logout{font-size:13px;color:#CFE0F2;font-weight:700}
.content{flex:1;overflow-y:auto;padding:18px 16px 90px}
.card{background:var(--card);border-radius:14px;padding:16px;margin-bottom:14px;box-shadow:0 1px 6px rgba(20,40,70,.06)}
.card h3{margin:0 0 10px;font-size:15px;font-weight:800;color:var(--navy)}
.platforms{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 2px}
.chip{padding:5px 11px;border-radius:999px;font-size:12.5px;font-weight:700;background:#EAF1F9;color:var(--blue)}
.chip.simcha{background:#F7EFDD;color:#8A6D1D}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;
  border-top:1px solid var(--line)}
.toggle-row:first-child{border-top:none}
.toggle-row .lbl{font-size:14.5px;font-weight:700}
.toggle-row .desc{font-size:12.5px;color:var(--muted);margin-top:2px}
.switch{position:relative;width:46px;height:26px;border-radius:999px;background:#CBD3DD;cursor:pointer;flex-shrink:0}
.switch.on{background:var(--blue)}
.switch .knob{position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;
  transition:left .15s ease;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch.on .knob{left:23px}
.msg{display:flex;gap:10px;padding:12px 0;border-top:1px solid var(--line)}
.msg:first-child{border-top:none}
.msg .av{width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.msg .av.simcha{background:#8A6D1D}
.msg .body{flex:1;min-width:0}
.msg .row1{display:flex;justify-content:space-between;gap:8px}
.msg .from{font-weight:800;font-size:14.5px}
.msg .time{font-size:11.5px;color:var(--muted)}
.msg .text{font-size:13.5px;color:var(--grey);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.msg .src{display:inline-block;margin-top:4px;font-size:10.5px;font-weight:800;padding:2px 7px;border-radius:999px}
.msg .src.gring{background:#EAF1F9;color:var(--blue)}
.msg .src.simcha{background:#F7EFDD;color:#8A6D1D}
.thread{padding:4px 0}
.bubble{max-width:82%;padding:10px 13px;border-radius:14px;margin:6px 0;font-size:14px;line-height:1.4}
.bubble.them{background:#EEF1F5;align-self:flex-start;border-bottom-left-radius:4px}
.bubble.me{background:var(--blue);color:#fff;align-self:flex-end;border-bottom-right-radius:4px;margin-left:auto}
.threadwrap{display:flex;flex-direction:column}
.composer{display:flex;gap:8px;margin-top:10px}
.composer input{flex:1;padding:12px 13px;border-radius:11px;border:1.5px solid var(--line);font-family:inherit;font-size:14.5px}
.composer button{padding:0 16px;border-radius:11px;border:none;background:var(--blue);color:#fff;font-weight:800;font-family:inherit}
textarea{width:100%;padding:12px 13px;border-radius:11px;border:1.5px solid var(--line);font-family:inherit;
  font-size:14.5px;resize:vertical;min-height:70px}
.save-row{display:flex;justify-content:flex-end;margin-top:4px}
.save-row button{padding:11px 20px;border-radius:11px;border:none;background:var(--blue);color:#fff;font-weight:800;font-family:inherit}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:#16202B;color:#fff;
  padding:10px 18px;border-radius:10px;font-size:13.5px;font-weight:700;opacity:0;transition:opacity .2s;pointer-events:none;z-index:50}
.toast.show{opacity:1}
.tabbar{position:fixed;left:0;right:0;bottom:0;max-width:480px;margin:0 auto;display:flex;background:#fff;
  border-top:1px solid var(--line);padding:8px 6px calc(10px + env(safe-area-inset-bottom))}
.tabbar .tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--muted);
  font-size:11px;font-weight:800;padding:4px 0;cursor:pointer}
.tabbar .tab.active{color:var(--blue)}
.tabbar .tab .ic{width:22px;height:22px}
.badge{position:relative}
.badge::after{content:attr(data-n);position:absolute;top:-4px;right:-10px;background:#C0392B;color:#fff;
  font-size:10px;font-weight:800;border-radius:999px;padding:1px 5px;min-width:14px;text-align:center}