:root{
  --bg:#0b0d12;
  --bg-2:#12151d;
  --panel:rgba(255,255,255,.04);
  --panel-solid:#171b24;
  --border:rgba(255,255,255,.09);
  --text:#e9ecf3;
  --muted:#8f96a8;
  --accent:#7c5cff;
  --accent-soft:rgba(124,92,255,.18);
  --danger:#ff5d6c;
  --ok:#34d399;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1100px 700px at 85% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(34,211,238,.10), transparent 60%),
    var(--bg);
  color:var(--text);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
.muted{color:var(--muted)}
.small{font-size:.78rem}
.mt{margin-top:18px}
button{font:inherit;cursor:pointer;color:inherit}
input,select{font:inherit}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.13);border-radius:99px}
::-webkit-scrollbar-track{background:transparent}

/* ---------- screens ---------- */
.screen{position:fixed;inset:0;display:none;opacity:0;transition:opacity .35s ease}
.screen.active{display:flex;opacity:1}

/* ---------- buttons ---------- */
.btn{
  border:1px solid var(--border);
  background:var(--panel);
  padding:11px 18px;
  border-radius:var(--radius-sm);
  transition:.18s ease;
  font-weight:600;
  font-size:.92rem;
}
.btn:hover{background:rgba(255,255,255,.09);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{
  background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 60%, #22d3ee));
  border-color:transparent;color:#fff;
  box-shadow:0 10px 28px -12px var(--accent);
}
.btn.primary:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:var(--panel)}
.icon-btn{
  background:var(--panel);border:1px solid var(--border);
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  transition:.18s ease;font-size:1rem;flex:none;
}
.icon-btn:hover{background:rgba(255,255,255,.1)}
.icon-btn.on{background:var(--accent-soft);border-color:var(--accent)}
.mobile-only{display:none}

/* ---------- auth ---------- */
.auth-card{
  margin:auto;width:min(420px,92vw);
  background:var(--panel-solid);border:1px solid var(--border);
  border-radius:22px;padding:34px 30px;box-shadow:var(--shadow);
  animation:rise .5s cubic-bezier(.2,.8,.2,1);
}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.brand{text-align:center;margin-bottom:22px}
.brand h1{font-size:1.85rem;letter-spacing:-.5px;margin-top:10px}
.brand-orb{
  width:56px;height:56px;border-radius:50%;margin:0 auto;
  background:conic-gradient(from 0deg,var(--accent),#22d3ee,#f472b6,var(--accent));
  animation:spin 8s linear infinite;
  box-shadow:0 0 42px -6px var(--accent);
}
.brand-orb.small{width:26px;height:26px;box-shadow:none}
@keyframes spin{to{transform:rotate(360deg)}}
.tabs{display:flex;gap:6px;background:var(--panel);padding:5px;border-radius:12px;margin-bottom:20px}
.tab{flex:1;border:0;background:transparent;padding:9px;border-radius:9px;color:var(--muted);font-weight:600;transition:.2s}
.tab.active{background:var(--panel-solid);color:var(--text);box-shadow:0 2px 10px rgba(0,0,0,.35)}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-form label,.modal label{display:flex;flex-direction:column;gap:7px;font-size:.85rem;color:var(--muted);font-weight:500}
.auth-form input,.modal input,.modal select{
  background:#0e1118;border:1px solid var(--border);border-radius:10px;
  padding:12px 13px;color:var(--text);outline:none;transition:.18s;width:100%;
}
.auth-form input:focus,.modal input:focus,.modal select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.error{color:var(--danger);font-size:.82rem;min-height:16px}
.hint{font-size:.75rem;color:var(--muted);text-align:center;margin-top:18px;line-height:1.5}

/* ---------- wizard ---------- */
.wizard{
  margin:auto;width:min(620px,94vw);
  background:var(--panel-solid);border:1px solid var(--border);
  border-radius:22px;padding:28px;box-shadow:var(--shadow);
  animation:rise .5s cubic-bezier(.2,.8,.2,1);
}
.wizard-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.wizard-head h2{font-size:1.4rem;letter-spacing:-.3px}
.steps{display:flex;gap:8px}
.step-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.15);transition:.25s}
.step-dot.active{background:var(--accent);transform:scale(1.25);box-shadow:0 0 0 4px var(--accent-soft)}
.wizard-step{display:none;flex-direction:column;gap:14px;min-height:260px}
.wizard-step.active{display:flex;animation:fadeIn .32s ease}
@keyframes fadeIn{from{opacity:0;transform:translateX(12px)}to{opacity:1;transform:none}}
.wizard-step h3{font-size:1rem;font-weight:600}
.wizard-step input[type=text]{
  background:#0e1118;border:1px solid var(--border);border-radius:10px;
  padding:13px;color:var(--text);outline:none;width:100%;
}
.wizard-step input[type=text]:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  border:1px solid var(--border);background:var(--panel);padding:9px 15px;
  border-radius:99px;font-size:.86rem;transition:.18s;font-weight:500;
}
.chip:hover{background:rgba(255,255,255,.09)}
.chip.selected{background:var(--accent-soft);border-color:var(--accent);color:#fff}
.chip.swatch{width:42px;height:42px;padding:0;border-radius:50%;background:var(--c);border:3px solid transparent}
.chip.swatch.selected{border-color:#fff;transform:scale(1.08)}
.switch-row{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;color:var(--text);cursor:pointer}
.switch-row input{accent-color:var(--accent);width:20px;height:20px}
.review{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:16px;font-size:.88rem;line-height:1.9;
}
.review b{color:var(--accent)}
.wizard-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}

/* ---------- chat layout ---------- */
#chatScreen{display:none}
#chatScreen.active{display:flex}
.sidebar{
  width:262px;flex:none;background:rgba(10,12,17,.72);backdrop-filter:blur(14px);
  border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:16px;
  transition:transform .3s ease;
}
.side-brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.2px}
.companion-card{
  display:flex;align-items:center;gap:12px;background:var(--panel);
  border:1px solid var(--border);border-radius:14px;padding:12px;
}
.avatar{
  width:44px;height:44px;border-radius:13px;flex:none;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),#22d3ee);font-weight:700;font-size:1.15rem;color:#fff;
}
.side-nav{display:flex;flex-direction:column;gap:7px}
.side-btn{
  text-align:left;border:1px solid transparent;background:transparent;color:var(--muted);
  padding:11px 12px;border-radius:11px;transition:.18s;font-size:.9rem;width:100%;
}
.side-btn:hover{background:var(--panel);color:var(--text)}
.status{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--muted);padding-left:4px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.dot.busy{background:#fbbf24;box-shadow:0 0 10px #fbbf24;animation:pulse 1.1s infinite}
.dot.off{background:var(--danger);box-shadow:0 0 10px var(--danger)}
@keyframes pulse{50%{opacity:.35}}

.chat{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}
.chat-head{
  display:flex;align-items:center;gap:12px;padding:14px 20px;
  border-bottom:1px solid var(--border);background:rgba(10,12,17,.6);backdrop-filter:blur(12px);
}
.chat-title{flex:1;min-width:0}
.chat-title strong{display:block;letter-spacing:-.2px}
.chat-actions{display:flex;gap:8px}

.messages{
  flex:1;overflow-y:auto;padding:26px 20px 8px;
  display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth;
}
.msg{display:flex;gap:11px;max-width:74%;animation:msgIn .32s cubic-bezier(.2,.8,.2,1)}
@keyframes msgIn{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
.msg .bubble{
  padding:12px 15px;border-radius:16px;line-height:1.55;font-size:.94rem;
  white-space:pre-wrap;word-break:break-word;
}
.msg .who{
  width:34px;height:34px;border-radius:11px;flex:none;display:grid;place-items:center;
  font-size:.82rem;font-weight:700;
}
.msg.bot{align-self:flex-start}
.msg.bot .who{background:linear-gradient(135deg,var(--accent),#22d3ee);color:#fff}
.msg.bot .bubble{background:var(--panel-solid);border:1px solid var(--border);border-bottom-left-radius:5px}
.msg.user{align-self:flex-end;flex-direction:row-reverse}
.msg.user .who{background:rgba(255,255,255,.1);color:var(--text)}
.msg.user .bubble{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 60%, #22d3ee));color:#fff;border-bottom-right-radius:5px}
.typing{display:flex;gap:4px;padding:6px 2px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:bounce 1.1s infinite}
.typing span:nth-child(2){animation-delay:.15s}
.typing span:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}

.composer{
  display:flex;gap:10px;padding:14px 20px;border-top:1px solid var(--border);
  background:rgba(10,12,17,.6);backdrop-filter:blur(12px);align-items:center;
}
.composer input{
  flex:1;background:#0e1118;border:1px solid var(--border);border-radius:12px;
  padding:13px 15px;color:var(--text);outline:none;transition:.18s;
}
.composer input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.send{padding:12px 22px;border-radius:12px}
.quick-row{display:flex;gap:8px;padding:0 20px 14px;flex-wrap:wrap}
.quick{
  border:1px solid var(--border);background:var(--panel);border-radius:99px;
  padding:7px 14px;font-size:.82rem;color:var(--muted);transition:.18s;
}
.quick:hover{color:var(--text);background:rgba(255,255,255,.09)}
.emoji-pop{
  position:absolute;bottom:76px;left:20px;display:none;gap:6px;
  background:var(--panel-solid);border:1px solid var(--border);border-radius:14px;
  padding:9px;box-shadow:var(--shadow);
}
.emoji-pop.open{display:flex}
.emoji-pop button{border:0;background:transparent;font-size:1.3rem;padding:5px;border-radius:8px;transition:.15s}
.emoji-pop button:hover{background:var(--panel);transform:scale(1.18)}

/* ---------- modals ---------- */
.modal-backdrop{
  position:fixed;inset:0;background:rgba(4,6,10,.7);backdrop-filter:blur(6px);
  display:none;place-items:center;z-index:60;padding:20px;
}
.modal-backdrop.open{display:grid}
.modal{
  width:min(460px,94vw);max-height:86vh;overflow-y:auto;
  background:var(--panel-solid);border:1px solid var(--border);
  border-radius:20px;padding:26px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:15px;animation:rise .35s ease;
}
.modal h3{margin-bottom:4px;letter-spacing:-.2px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}
.memory-list{display:flex;flex-direction:column;gap:9px;font-size:.88rem}
.memory-item{
  background:var(--panel);border:1px solid var(--border);border-radius:11px;
  padding:11px 13px;display:flex;justify-content:space-between;gap:10px;align-items:center;
}
.memory-item b{color:var(--accent);font-weight:600}
.memory-empty{color:var(--muted);font-size:.86rem;text-align:center;padding:14px}

/* ---------- responsive ---------- */
@media (max-width:820px){
  .mobile-only{display:grid}
  .sidebar{position:fixed;top:0;bottom:0;left:0;z-index:50;transform:translateX(-100%)}
  .sidebar.open{transform:none;box-shadow:var(--shadow)}
  .msg{max-width:88%}
  .composer{padding:12px}
  .messages{padding:18px 12px 4px}
}