/* Napa AI Cloud Inference — themed to match napa-ai.com / portal.napa-ai.com (Kumbh Sans, ink/paper/violet, square corners) */
:root{
  --ink:#0c0c0e;--paper:#f5f4f8;--mist:#e8e6ef;--white:#fff;
  --accent:#5b21b6;--accent-hover:#6d28d9;--accent-dark:#4c1d95;--accent-soft:#7c3aed;--accent-tint:rgba(91,33,182,.08);--accent-light:#c4b5fd;
  --stone:#6b7280;--line:rgba(12,12,14,.1);--line-strong:rgba(12,12,14,.18);
  --success:#047857;--success-tint:#ecfdf5;--warning:#a16207;--warning-tint:#fefce8;--danger:#b91c1c;--danger-tint:#fef2f2;--info-tint:#f5f3ff;
  --shadow:0 20px 40px -24px rgba(12,12,14,.18);
  --font:'Kumbh Sans',system-ui,-apple-system,'Segoe UI',sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sidebar-w:16.5rem;--topbar-h:4rem;
}
*,*::before,*::after{box-sizing:border-box;border-radius:0}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:15px;line-height:1.55;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}
h1,h2,h3,h4{font-weight:700;line-height:1.2;margin:0 0 .6rem;letter-spacing:-.01em}
h1{font-size:1.75rem}h2{font-size:1.25rem}h3{font-size:1.05rem}
p{margin:0 0 1rem}
code,pre,.mono{font-family:var(--mono);font-size:.86em}
code{background:var(--mist);padding:.1em .35em}
pre{background:var(--ink);color:#e9e7f1;padding:1rem;overflow:auto;line-height:1.5;margin:0 0 1rem}
pre code{background:none;padding:0;color:inherit}
small,.muted{color:var(--stone)}
.small{font-size:.85rem}
hr{border:0;border-top:1px solid var(--line);margin:1.5rem 0}

/* ---------- layout ---------- */
.sidebar{position:fixed;inset:0 auto 0 0;z-index:1050;width:var(--sidebar-w);max-width:86vw;display:flex;flex-direction:column;background:var(--ink);color:rgba(255,255,255,.72);overflow-y:auto;border-right:1px solid rgba(255,255,255,.08)}
.sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 1.5rem .5rem}
.sidebar-brand img{height:2.1rem;width:auto;display:block}
.sidebar-sub{padding:0 1.5rem 1rem;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.45)}
.nav{list-style:none;margin:0;padding:.5rem 0;flex:1}
.nav-label{padding:1rem 1.5rem .35rem;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.4)}
.nav a{display:flex;align-items:center;gap:.75rem;padding:.6rem 1.5rem;color:rgba(255,255,255,.72);font-weight:500;border-left:3px solid transparent}
.nav a:hover{color:#fff;background:rgba(255,255,255,.05);text-decoration:none}
.nav a.active{color:#fff;background:rgba(124,58,237,.18);border-left-color:var(--accent-soft)}
.nav svg{width:18px;height:18px;flex:none;opacity:.85}
.sidebar-foot{padding:1rem 1.5rem 1.5rem;border-top:1px solid rgba(255,255,255,.08);font-size:.85rem}
.sidebar-foot .bal{font-size:1.35rem;font-weight:700;color:#fff}
.sidebar-foot a{color:var(--accent-light)}
.sidebar-close{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer;line-height:1}
.backdrop{position:fixed;inset:0;z-index:1045;background:rgba(12,12,14,.55)}
.backdrop[hidden]{display:none}
.main{min-height:100vh;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:1000;height:var(--topbar-h);display:flex;align-items:center;gap:1rem;padding:0 1.25rem;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar-title{font-weight:700;font-size:1.05rem;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.burger{display:none;background:none;border:1px solid var(--line-strong);width:2.5rem;height:2.5rem;cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:var(--ink);position:relative;content:''}
.burger span::before{position:absolute;top:-6px}.burger span::after{position:absolute;top:6px}
.container{width:100%;max-width:80rem;margin:0 auto;padding:1.5rem 1.25rem 3rem}
@media(min-width:768px){.container{padding:2rem 2rem 4rem}}
@media(min-width:1200px){.main{margin-left:var(--sidebar-w)}}
@media(max-width:1199.98px){
  .sidebar{transform:translateX(-100%);visibility:hidden;transition:transform .25s ease,visibility 0s linear .25s}
  body.nav-open .sidebar{transform:none;visibility:visible;transition:transform .25s ease}
  body.nav-open{overflow:hidden}
  .burger{display:inline-flex}.sidebar-close{display:block}
}
.banner{padding:.6rem 1.25rem;font-size:.9rem;font-weight:600;text-align:center}
.banner-beta{background:var(--accent);color:#fff}
.banner-imp{background:#fde68a;color:#713f12}
.banner form{display:inline}

/* ---------- components ---------- */
.card{background:var(--white);border:1px solid var(--line);padding:1.25rem;margin-bottom:1.25rem}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0}
.grid{display:grid;gap:1.25rem}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,22rem),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr))}
.stat{background:var(--white);border:1px solid var(--line);padding:1.1rem 1.25rem}
.stat .label{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);font-weight:600}
.stat .value{font-size:1.6rem;font-weight:700;margin-top:.25rem;letter-spacing:-.02em}
.stat .sub{font-size:.82rem;color:var(--stone)}
.stat.accent{background:var(--ink);color:#fff;border-color:var(--ink)}
.stat.accent .label,.stat.accent .sub{color:rgba(255,255,255,.6)}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}
.page-head h1{margin:0}
.page-head p{margin:.25rem 0 0;color:var(--stone)}
.eyebrow{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:.35rem}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.1rem;font:600 .9rem/1.2 var(--font);border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;text-decoration:none}
.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;text-decoration:none}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-dark{background:var(--ink);border-color:var(--ink)}.btn-dark:hover{background:#26262b;border-color:#26262b}
.btn-danger{background:transparent;color:var(--danger);border-color:rgba(185,28,28,.4)}.btn-danger:hover{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-sm{padding:.35rem .7rem;font-size:.8rem}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
.inline{display:inline}

label{display:block;font-weight:600;font-size:.85rem;margin-bottom:.3rem}
.field{margin-bottom:1rem}
.help{font-size:.8rem;color:var(--stone);margin-top:.25rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=url],select,textarea{width:100%;padding:.6rem .75rem;font:inherit;font-size:.95rem;color:var(--ink);background:#fff;border:1px solid var(--line-strong);outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent-soft);box-shadow:0 0 0 3px var(--accent-tint)}
textarea{min-height:6rem;resize:vertical}
.check{display:flex;align-items:center;gap:.5rem;font-weight:500;margin-bottom:.6rem;cursor:pointer}
.check input{width:1rem;height:1rem;accent-color:var(--accent)}
.form-row{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr))}
.toggle{position:relative;display:inline-flex;align-items:center;gap:.75rem;cursor:pointer;font-weight:600}
.toggle input{position:absolute;opacity:0}
.toggle .track{width:2.8rem;height:1.5rem;background:var(--mist);border:1px solid var(--line-strong);position:relative;transition:.2s}
.toggle .track::after{content:'';position:absolute;top:2px;left:2px;width:1.1rem;height:1.1rem;background:#fff;border:1px solid var(--line-strong);transition:.2s}
.toggle input:checked+.track{background:var(--accent);border-color:var(--accent)}
.toggle input:checked+.track::after{left:calc(100% - 1.1rem - 4px)}
.toggle input:focus-visible+.track{box-shadow:0 0 0 3px var(--accent-tint)}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -1.25rem;padding:0 1.25rem}
table{width:100%;border-collapse:collapse;font-size:.88rem}
th{text-align:left;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);font-weight:700;padding:.55rem .6rem;border-bottom:1px solid var(--line-strong);white-space:nowrap}
td{padding:.6rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
tfoot td{font-weight:700;border-top:1px solid var(--line-strong)}
.badge{display:inline-block;padding:.12rem .45rem;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--mist);color:var(--ink);white-space:nowrap}
.badge-ok{background:var(--success-tint);color:var(--success)}
.badge-warn{background:var(--warning-tint);color:var(--warning)}
.badge-danger{background:var(--danger-tint);color:var(--danger)}
.badge-accent{background:var(--info-tint);color:var(--accent)}
.badge-dark{background:var(--ink);color:#fff}
.alert{padding:.8rem 1rem;margin-bottom:1rem;border:1px solid;font-size:.92rem}
.alert-success{background:var(--success-tint);border-color:rgba(4,120,87,.25);color:#065f46}
.alert-error{background:var(--danger-tint);border-color:rgba(185,28,28,.25);color:#991b1b}
.alert-info{background:var(--info-tint);border-color:rgba(91,33,182,.2);color:var(--accent-dark)}
.alert-warn{background:var(--warning-tint);border-color:rgba(161,98,7,.25);color:#713f12}
.keybox{display:flex;gap:.5rem;align-items:stretch;flex-wrap:wrap}
.keybox code{flex:1;min-width:0;padding:.7rem;background:var(--ink);color:#fff;word-break:break-all;font-size:.85rem}
.empty{padding:2.5rem 1rem;text-align:center;color:var(--stone)}
.filters{display:flex;flex-wrap:wrap;gap:.6rem;align-items:flex-end;margin-bottom:1.25rem}
.filters .field{margin:0;min-width:9rem}
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line-strong);margin-bottom:1rem;overflow-x:auto}
.tabs a{padding:.6rem 1rem;font-weight:600;color:var(--stone);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a.active{color:var(--ink);border-bottom-color:var(--accent)}
details summary{cursor:pointer;font-weight:600}
.kv{display:grid;grid-template-columns:max-content 1fr;gap:.35rem 1rem;font-size:.9rem}
.kv dt{color:var(--stone)}.kv dd{margin:0}
.right{text-align:right}.nowrap{white-space:nowrap}.mt{margin-top:1rem}.mb0{margin-bottom:0}
.actions{display:flex;gap:.4rem;flex-wrap:wrap}

/* bar chart */
.chart{display:flex;align-items:flex-end;gap:2px;height:160px;padding-top:.5rem;border-bottom:1px solid var(--line-strong)}
.chart .bar{flex:1;background:var(--accent);min-height:1px;position:relative;opacity:.9}
.chart .bar:hover{opacity:1;background:var(--accent-soft)}
.chart .bar .tip{display:none;position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;font-size:.72rem;padding:.3rem .45rem;white-space:nowrap;z-index:5;margin-bottom:4px}
.chart .bar:hover .tip{display:block}
.chart-x{display:flex;justify-content:space-between;font-size:.72rem;color:var(--stone);margin-top:.3rem}
.meter{height:6px;background:var(--mist)}.meter>span{display:block;height:100%;background:var(--accent)}

/* ---------- auth pages ---------- */
.auth{min-height:100vh;display:grid;grid-template-columns:1fr}
@media(min-width:960px){.auth{grid-template-columns:1.1fr 1fr}}
.auth-art{display:none;background:var(--ink);color:#fff;padding:3rem;position:relative;overflow:hidden}
@media(min-width:960px){.auth-art{display:flex;flex-direction:column;justify-content:space-between}}
.auth-art::after{content:'';position:absolute;right:-20%;bottom:-30%;width:80%;height:80%;background:radial-gradient(circle,rgba(124,58,237,.55),transparent 65%)}
.auth-art h2{font-size:2.4rem;max-width:28rem;position:relative;z-index:1}
.auth-art p{color:rgba(255,255,255,.7);max-width:26rem;position:relative;z-index:1}
.auth-art img{height:2.4rem;width:auto}
.auth-form{display:flex;align-items:center;justify-content:center;padding:2rem 1.25rem}
.auth-box{width:100%;max-width:25rem}
.auth-box .logo-m{height:2rem;margin-bottom:2rem}
@media(min-width:960px){.auth-box .logo-m{display:none}}

/* ---------- chat ---------- */
body.chat-page .container{max-width:none;padding:0}
.chat{display:flex;height:calc(100vh - var(--topbar-h));height:calc(100dvh - var(--topbar-h))}
.chat-side{width:17rem;flex:none;border-right:1px solid var(--line);background:#fff;display:flex;flex-direction:column}
.chat-side .new{margin:1rem}
.conv-list{list-style:none;margin:0;padding:0 .5rem 1rem;overflow-y:auto;flex:1}
.conv-list li{display:flex;align-items:center}
.conv-list a{flex:1;min-width:0;display:block;padding:.55rem .75rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.9rem}
.conv-list a:hover{background:var(--paper);text-decoration:none}
.conv-list li.active a{background:var(--accent-tint);color:var(--accent-dark);font-weight:600}
.conv-list button{background:none;border:0;color:var(--stone);cursor:pointer;padding:.3rem .45rem;visibility:hidden}
.conv-list li:hover button,.conv-list li.active button{visibility:visible}
.conv-group{font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--stone);padding:.8rem .75rem .3rem}
.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--paper)}
.chat-bar{display:flex;align-items:center;gap:.6rem;padding:.6rem 1rem;border-bottom:1px solid var(--line);background:#fff;flex-wrap:wrap}
.chat-bar select{width:auto;max-width:100%;padding:.4rem .6rem;font-weight:600}
.chat-bar .caps{display:flex;gap:.3rem}
.chat-scroll{flex:1;overflow-y:auto;padding:1.5rem 1rem}
.thread{max-width:48rem;margin:0 auto}
.msg{margin-bottom:1.4rem;display:flex;gap:.8rem}
.msg .avatar{width:2rem;height:2rem;flex:none;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;background:var(--ink);color:#fff}
.msg.assistant .avatar{background:var(--accent)}
.msg .body{flex:1;min-width:0}
.msg.user .bubble{background:#fff;border:1px solid var(--line);padding:.75rem 1rem;display:inline-block;max-width:100%;white-space:pre-wrap;word-wrap:break-word}
.msg .content{word-wrap:break-word;overflow-wrap:anywhere}
.msg .content p:last-child{margin-bottom:0}
.msg .content pre{position:relative}
.msg .content pre .copy{position:absolute;top:.4rem;right:.4rem;font-size:.72rem;padding:.2rem .5rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;cursor:pointer}
.msg .content table{margin-bottom:1rem;background:#fff}
.msg .content ul,.msg .content ol{padding-left:1.4rem;margin:0 0 1rem}
.msg .content blockquote{margin:0 0 1rem;padding-left:1rem;border-left:3px solid var(--accent-light);color:var(--stone)}
.msg .meta{font-size:.75rem;color:var(--stone);margin-top:.4rem}
.msg .imgs{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.5rem}
.msg .imgs img{max-width:12rem;max-height:12rem;border:1px solid var(--line);object-fit:cover}
.reasoning{font-size:.85rem;color:var(--stone);border-left:2px solid var(--mist);padding-left:.75rem;margin-bottom:.6rem;white-space:pre-wrap;max-height:14rem;overflow:auto}
.cursor::after{content:'▍';animation:blink 1s steps(2) infinite;color:var(--accent)}
@keyframes blink{50%{opacity:0}}
.composer{padding:.75rem 1rem 1rem;background:linear-gradient(transparent,var(--paper) 30%)}
.composer-box{max-width:48rem;margin:0 auto;background:#fff;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.composer-box:focus-within{border-color:var(--accent-soft)}
.composer textarea{border:0;box-shadow:none;min-height:3.2rem;max-height:14rem;resize:none;padding:.9rem 1rem .4rem;font-size:1rem}
.composer-tools{display:flex;align-items:center;gap:.5rem;padding:.4rem .6rem .6rem}
.composer-tools .spacer{flex:1}
.icon-btn{background:none;border:1px solid transparent;width:2.3rem;height:2.3rem;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--stone)}
.icon-btn:hover{border-color:var(--line-strong);color:var(--ink)}
.icon-btn svg{width:20px;height:20px}
.attach-preview{display:flex;gap:.5rem;flex-wrap:wrap;padding:.6rem 1rem 0}
.attach-preview .thumb{position:relative}
.attach-preview img{width:4rem;height:4rem;object-fit:cover;border:1px solid var(--line)}
.attach-preview button{position:absolute;top:-.4rem;right:-.4rem;width:1.3rem;height:1.3rem;border:0;background:var(--ink);color:#fff;font-size:.8rem;cursor:pointer;line-height:1}
.chat-hint{max-width:48rem;margin:.4rem auto 0;font-size:.75rem;color:var(--stone);text-align:center}
.welcome{max-width:40rem;margin:10vh auto 0;text-align:center}
.welcome h2{font-size:2rem}
.suggest{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:.6rem;margin-top:1.5rem;text-align:left}
.suggest button{background:#fff;border:1px solid var(--line);padding:.8rem 1rem;font:inherit;font-size:.9rem;cursor:pointer;text-align:left}
.suggest button:hover{border-color:var(--accent-soft)}
.chat-side-toggle{display:none}
@media(max-width:860px){
  .chat-side{position:fixed;top:var(--topbar-h);bottom:0;left:0;z-index:900;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}
  .chat.side-open .chat-side{transform:none}
  .chat-side-toggle{display:inline-flex}
}
[hidden]{display:none!important}
details.reasoning{border-left:2px solid var(--mist);padding-left:.75rem;margin-bottom:.6rem;font-size:.85rem;color:var(--stone)}
details.reasoning summary{font-weight:600;font-size:.8rem;letter-spacing:.04em;color:var(--stone);list-style:none}
details.reasoning summary::before{content:'▸ ';}
details.reasoning[open] summary::before{content:'▾ ';}
details.reasoning .rtext{white-space:pre-wrap;max-height:14rem;overflow:auto;margin-top:.35rem}