@font-face{font-family:'DM Sans';font-style:normal;font-weight:400 600;font-display:swap;src:url('../fonts/dm-sans-400-600-normal.woff2') format('woff2');}

:root{
  --bg:#030B17;--surface:#07111A;--surface2:#0F1F2E;--line:rgba(36,212,195,0.11);
  --teal:#24D4C3;--ink:#E0EAF4;--muted:#4A7090;--faint:#2E4A60;
  --warn:#F5B841;--crit:#E5484D;--r:10px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;overflow:hidden;}
body{
  background:var(--bg);color:var(--ink);
  font-family:'DM Sans',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}

#app{display:flex;flex-direction:column;height:100dvh;}

/* ---- HEADER ---- */
.c-header{
  display:flex;align-items:center;gap:12px;padding:0 20px;
  height:52px;
  background:var(--surface);border-bottom:1px solid var(--line);
  flex-shrink:0;
}
.hamburger-btn{
  display:none;background:transparent;border:none;color:var(--muted);
  font-size:1.2rem;cursor:pointer;padding:4px 6px;border-radius:8px;
  line-height:1;transition:.15s;flex-shrink:0;
}
.hamburger-btn:hover{background:rgba(255,255,255,0.06);color:var(--ink);}
.back-btn{
  color:var(--muted);text-decoration:none;font-size:.82rem;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;border-radius:8px;
  border:1px solid rgba(36,212,195,0.14);background:transparent;transition:.15s;
  white-space:nowrap;
}
.back-btn:hover{color:var(--ink);border-color:var(--teal);}
.c-title{display:flex;align-items:center;gap:8px;}
.c-name{font-weight:700;letter-spacing:.12em;color:var(--teal);font-size:.9rem;}
.status-dot{
  width:8px;height:8px;border-radius:50%;background:var(--teal);flex-shrink:0;
}
@media(prefers-reduced-motion:no-preference){
  .status-dot{animation:pulse-dot 1.6s ease-in-out infinite;}
  @keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.2;transform:scale(.65)}}
}
.ctx-wrap{display:flex;align-items:center;gap:8px;margin-left:auto;}
.ctx-bar-outer{width:80px;height:4px;background:var(--surface2);border-radius:99px;overflow:hidden;}
.ctx-bar-fill{height:100%;background:var(--teal);border-radius:99px;transition:width .4s;width:0%;}
.ctx-bar-fill.warn{background:var(--warn);}
.ctx-bar-fill.crit{background:var(--crit);}
.ctx-label{font-size:.7rem;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;}
.model-pill{
  background:rgba(36,212,195,0.07);border:1px solid rgba(36,212,195,0.14);
  color:var(--muted);border-radius:99px;padding:3px 10px;font-size:.68rem;letter-spacing:.06em;
  white-space:nowrap;min-width:54px;text-align:center;
}
.mode-btn,.lock-btn{
  background:transparent;border:none;font-size:1rem;cursor:pointer;
  padding:4px 6px;border-radius:8px;transition:all .15s;line-height:1;
}
.mode-btn:hover,.lock-btn:hover{background:rgba(255,255,255,0.06);}
.mode-btn.mode-personal{background:rgba(180,120,255,0.12);border-radius:8px;}
body.personal-mode .c-header{border-bottom-color:rgba(180,120,255,0.25);}
body.personal-mode .status-dot{background:#b478ff;}
body.personal-mode .model-pill{border-color:rgba(180,120,255,0.25);color:rgba(180,120,255,0.8);}
.clear-btn{
  background:transparent;border:1px solid rgba(36,212,195,0.14);color:var(--muted);
  padding:6px 12px;border-radius:8px;font-size:.78rem;font-weight:600;cursor:pointer;transition:.15s;
}
.clear-btn:hover{border-color:var(--crit);color:var(--crit);}

/* ---- LAYOUT ---- */
.c-layout{display:flex;flex:1;overflow:hidden;position:relative;}

/* ---- SIDEBAR ---- */
.sidebar-backdrop{
  display:none;position:fixed;inset:0;z-index:199;
  background:rgba(0,0,0,0.55);
}
.sidebar-backdrop.visible{display:block;}

.c-sidebar{
  width:196px;flex-shrink:0;display:flex;flex-direction:column;
  background:var(--surface);border-right:1px solid var(--line);
}
.new-session-btn{
  margin:12px;flex-shrink:0;
  background:rgba(36,212,195,0.07);border:1px solid rgba(36,212,195,0.18);
  color:var(--teal);padding:8px 12px;border-radius:var(--r);
  font-size:.8rem;font-weight:700;cursor:pointer;letter-spacing:.04em;transition:.15s;
}
.new-session-btn:hover{background:rgba(36,212,195,0.13);}
.session-list{flex:1;overflow-y:auto;padding:0 8px 12px;scrollbar-width:thin;scrollbar-color:rgba(36,212,195,.12) transparent;}
.session-list::-webkit-scrollbar{width:4px;}
.session-list::-webkit-scrollbar-thumb{background:rgba(36,212,195,.15);border-radius:99px;}
.session-item{
  padding:8px 10px;border-radius:8px;cursor:pointer;
  font-size:.77rem;color:var(--muted);line-height:1.3;
  margin-bottom:2px;transition:.12s;
  border-left:2px solid transparent;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.session-item:hover{background:var(--surface2);color:var(--ink);}
.session-item.active{border-left-color:var(--teal);color:var(--ink);background:rgba(36,212,195,0.06);}
.sidebar-footer{
  padding:10px 14px;border-top:1px solid var(--line);
  font-size:.68rem;color:var(--faint);letter-spacing:.05em;min-height:36px;
}

/* ---- MAIN ---- */
.c-main{flex:1;display:flex;flex-direction:column;overflow:hidden;}

/* ---- THREAD ---- */
.thread{
  flex:1;overflow-y:auto;padding:24px 28px 16px;
  display:flex;flex-direction:column;gap:18px;
  scrollbar-width:thin;scrollbar-color:rgba(36,212,195,.12) transparent;
}
.thread::-webkit-scrollbar{width:6px;}
.thread::-webkit-scrollbar-thumb{background:rgba(36,212,195,.15);border-radius:99px;}

.msg-group{display:flex;flex-direction:column;gap:6px;max-width:80%;}
.msg-group.user{align-self:flex-end;align-items:flex-end;}
.msg-group.cora{align-self:flex-start;align-items:flex-start;max-width:84%;}

.bubble-user{
  background:var(--teal);color:#07111F;
  border-radius:16px 16px 4px 16px;
  padding:10px 16px;font-size:.9rem;line-height:1.55;word-break:break-word;
}

.cora-row{display:flex;align-items:flex-start;gap:10px;}
.avatar{
  width:28px;height:28px;border-radius:50%;
  background:var(--teal);color:#07111F;
  display:flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:800;flex-shrink:0;margin-top:2px;
}
.bubble-cora{
  background:var(--surface2);border:1px solid var(--line);
  border-radius:4px 16px 16px 16px;
  padding:12px 16px;font-size:.9rem;line-height:1.6;word-break:break-word;
  min-height:42px;
}
.bubble-cora p{margin-bottom:.6em;}
.bubble-cora p:last-child{margin-bottom:0;}
.bubble-cora ul,.bubble-cora ol{margin:.3em 0 .6em 1.2em;}
.bubble-cora li{margin-bottom:.2em;}
.bubble-cora code{background:rgba(36,212,195,0.1);border-radius:4px;padding:1px 5px;font-size:.84em;font-family:"JetBrains Mono","Fira Code",monospace;color:var(--teal);}
.bubble-cora pre{background:rgba(0,0,0,.38);border:1px solid var(--line);border-radius:8px;padding:12px;overflow-x:auto;margin:.6em 0;}
.bubble-cora pre code{background:none;padding:0;color:#e0eaf4;}
.bubble-cora strong{color:#fff;font-weight:700;}
.bubble-cora h1,.bubble-cora h2,.bubble-cora h3{color:var(--teal);font-size:.95rem;font-weight:700;margin-top:.8em;margin-bottom:.3em;}
.bubble-cora a{color:var(--teal);text-decoration:underline;}
.bubble-cora em{font-style:italic;color:var(--muted);}

/* streaming cursor */
.bubble-cora.streaming::after{
  content:'';display:inline-block;width:9px;height:1em;
  background:var(--teal);margin-left:2px;vertical-align:text-bottom;
  animation:blink-cursor .8s step-end infinite;
}
@keyframes blink-cursor{0%,100%{opacity:1;}50%{opacity:0;}}

/* ---- TOOL CARDS ---- */
.tool-cards{display:flex;flex-direction:column;gap:4px;width:100%;margin-bottom:6px;}
.tool-card{
  border-left:2px solid var(--teal);background:rgba(36,212,195,0.04);
  border-radius:0 8px 8px 0;font-size:.78rem;line-height:1.4;
  opacity:0;transform:translateY(-4px);transition:opacity .2s,transform .2s;
}
.tool-card.visible{opacity:1;transform:none;}

.tool-card-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:7px 12px;
}
.tool-card-header[style*="cursor"]{cursor:pointer;}
.tool-card-header:hover .tool-name{color:var(--ink);}
.tool-name{color:var(--teal);font-weight:700;letter-spacing:.04em;}

.chevron{
  color:var(--muted);flex-shrink:0;transition:transform .2s;
}
.tool-card.open .chevron{transform:rotate(180deg);}

.tool-card-body{
  display:none;padding:0 12px 8px;
}
.tool-card.open .tool-card-body{display:block;}
.tool-detail{color:var(--muted);word-break:break-all;}

/* ---- CONFIRM GATE ---- */
.confirm-card{
  border-left:3px solid var(--warn);background:rgba(245,184,65,0.06);
  border-radius:0 10px 10px 0;padding:12px 16px;font-size:.85rem;width:100%;
}
.confirm-label{color:var(--warn);font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px;}
.confirm-action{color:var(--ink);margin-bottom:12px;line-height:1.5;}
.confirm-btns{display:flex;gap:8px;}
.btn-approve{
  background:var(--teal);color:#07111F;border:none;
  padding:7px 18px;border-radius:8px;font-size:.82rem;font-weight:700;cursor:pointer;transition:.15s;
}
.btn-approve:hover{filter:brightness(1.08);}
.btn-decline{
  background:transparent;color:var(--muted);border:1px solid rgba(36,212,195,0.2);
  padding:7px 18px;border-radius:8px;font-size:.82rem;font-weight:600;cursor:pointer;transition:.15s;
}
.btn-decline:hover{border-color:var(--crit);color:var(--crit);}

/* ---- THINKING ---- */
.thinking{display:flex;gap:5px;padding:6px 2px;align-items:center;}
.thinking span{width:7px;height:7px;border-radius:50%;background:var(--teal);}
.thinking span:nth-child(1){animation:blink 1.2s 0s infinite;}
.thinking span:nth-child(2){animation:blink 1.2s .2s infinite;}
.thinking span:nth-child(3){animation:blink 1.2s .4s infinite;}
@keyframes blink{0%,80%,100%{opacity:.15;}40%{opacity:.85;}}

/* ---- EMPTY STATE ---- */
.thread-empty{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;color:var(--muted);gap:14px;
}
.thread-empty .big-c{
  width:60px;height:60px;border-radius:50%;
  background:rgba(36,212,195,0.08);border:1px solid rgba(36,212,195,0.2);
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;font-weight:800;color:var(--teal);
}
.thread-empty p{font-size:.9rem;line-height:1.55;max-width:280px;color:var(--muted);}

/* ---- COMPOSER ---- */
.composer{
  padding:12px 20px 16px;background:var(--surface);border-top:1px solid var(--line);
  display:flex;align-items:flex-end;gap:8px;
}
#chat-input{
  flex:1;background:var(--surface2);color:var(--ink);
  border:1px solid rgba(36,212,195,0.14);border-radius:12px;
  padding:11px 14px;font-size:.9rem;font-family:inherit;
  resize:none;max-height:140px;overflow-y:auto;line-height:1.5;
  transition:border-color .15s;scrollbar-width:thin;
}
#chat-input:focus{outline:none;border-color:rgba(36,212,195,0.4);}
#chat-input::placeholder{color:var(--muted);}

.attach-btn,.mic-btn,.send-btn{
  flex-shrink:0;width:40px;height:40px;border-radius:50%;
  border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s;
}
.attach-btn{background:var(--surface2);color:var(--muted);border:1px solid var(--line);font-size:1rem;border-radius:10px;}
.attach-btn:hover{border-color:var(--teal);color:var(--teal);}
.mic-btn{background:var(--surface2);color:var(--muted);border:1px solid var(--line);font-size:1rem;border-radius:10px;}
.mic-btn:hover{border-color:var(--teal);color:var(--teal);}
.mic-btn.recording{background:rgba(229,72,77,.15);color:var(--crit);border-color:var(--crit);}
.send-btn{background:var(--teal);color:#07111F;}
.send-btn:hover{filter:brightness(1.08);}
.send-btn:disabled{opacity:.4;cursor:not-allowed;filter:none;}

.upload-pill{
  align-self:center;font-size:.78rem;padding:6px 14px;border-radius:20px;
  background:rgba(36,212,195,0.07);border:1px solid rgba(36,212,195,0.2);
  color:var(--muted);max-width:90%;word-break:break-word;
}
.upload-pill.done{color:var(--teal);border-color:rgba(36,212,195,0.4);}
.upload-pill.error{color:var(--crit);border-color:rgba(229,72,77,0.3);background:rgba(229,72,77,0.05);}

/* ---- MOBILE ---- */
@media(max-width:640px){
  .hamburger-btn{display:flex;}
  .c-sidebar{
    position:fixed;top:0;left:0;bottom:0;width:220px;z-index:200;
    transform:translateX(-220px);
    transition:transform .25s ease;
  }
  .c-sidebar.open{transform:translateX(0);box-shadow:4px 0 24px rgba(0,0,0,0.4);}
  .ctx-wrap{display:none;}
  .model-pill{display:none;}
  .back-btn{display:none !important;}
  .clear-btn{margin-left:auto;}
  .c-header{height:52px;padding:0 14px;}
  .thread{padding:16px 14px 10px;}
  .composer{padding:10px 12px 14px;}
}

/* ---- global nav (always visible — bottom of every screen) ---- */
.global-nav{
  display:flex;
  position:fixed;bottom:0;left:0;right:0;
  height:calc(68px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--surface);border-top:1px solid var(--line);
  z-index:50;
  justify-content:space-around;align-items:center;
}
.gnav-btn{
  flex:1;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:3px;
  color:var(--muted);font-size:.58rem;font-weight:700;
  letter-spacing:.07em;text-transform:uppercase;text-decoration:none;
  min-height:44px;transition:color .15s;
  border:none;background:none;cursor:pointer;
}
.gnav-btn.active{color:var(--teal);}
.gnav-btn svg{stroke:currentColor;}

/* app height correction: account for pinned nav on all viewports */
#app{height:calc(100dvh - 68px - env(safe-area-inset-bottom));}
html{scroll-padding-bottom:calc(68px + env(safe-area-inset-bottom));}