:root{
 color-scheme:light dark;
 --bg:#f6f4ef;--panel:#fffdf9;--fg:#1d1d1b;--mut:#77736a;
 --ln:#e5e0d5;--sf:#efebe2;--ac:#1e5b4f;--acd:#174a40;--acs:#e3efeb;
 --hl:#f3d98a;--r:14px;
}
@media(prefers-color-scheme:dark){
 :root{--bg:#161614;--panel:#1f1e1b;--fg:#ecebe6;--mut:#9a968c;--ln:#33312c;--sf:#2a2925;--ac:#7cc4b0;--acd:#9fd8c8;--acs:#22352f;--acb:#7cc4b02e}
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.8 Vazirmatn,"Segoe UI",Tahoma,sans-serif;-webkit-font-smoothing:antialiased}
button,textarea{font:inherit}
:focus-visible{outline:2px solid var(--acb);outline-offset:2px;border-radius: 10px;}

.wrap{max-width:780px;margin:0 auto;padding:0 16px}
.wide{max-width:720px}
.m{color:var(--mut)}

/* header */
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;height:56px}
.brand-grp{display:flex;align-items:center;gap:10px;flex:none}
.desc{color:var(--mut);font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight: 900;min-width:0}
@media(max-width:480px){.desc{font-size:.78rem}}

.top{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--ln)}
.logo{width:30px;height:30px;border-radius:9px;background:var(--ac);color:var(--bg);display:grid;place-items:center;font-size:12px;font-weight:700;letter-spacing:.5px}
.brand{font-weight:700}

/* hero */
.hero{text-align:center;padding:32px 0 22px}
h1{font-size:clamp(1.5rem,4vw,2.1rem);line-height:1.5;margin:0 0 6px}
.sub{color:var(--mut);margin:0}
h2{font-size:1.05rem;margin:0}

/* layout */
.split{display:flex;flex-direction:column;gap:20px;padding-bottom:56px}
.panel{background:var(--panel);border:1px solid var(--ln);border-radius:var(--r);padding:16px}

/* progress */
.stepline{display:flex;justify-content:space-between;font-size:.85rem;margin:0 2px 6px}
.prog{height:3px;background:var(--ln);border-radius:9px;overflow:hidden}
.prog i{display:block;height:100%;width:0;background:var(--ac);transition:width .35s ease}

/* chat */
#log{display:flex;flex-direction:column;gap:14px;max-height:60vh;min-height:180px;overflow-y:auto;padding:12px 2px 8px;scrollbar-width:thin}
.msg{display:flex;gap:10px;align-items:flex-start;max-width:100%}
.msg.me{justify-content:flex-end}
.msg .av{flex:none;width:28px;height:28px;border-radius:9px;background:var(--ac);color:var(--bg);display:grid;place-items:center;font-size:11px;font-weight:700}
.msg .tx{white-space:pre-wrap;word-break:break-word;padding-top:3px}
.msg.me .tx{background:var(--fg);color:var(--bg);border-radius:18px 18px 4px 18px;padding:7px 14px;max-width:85%}

#opts{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 10px;padding-inline-start:38px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
#opts button,.chips button{font-size:.9rem;color:var(--fg);background:transparent;border:1px solid var(--ln);border-radius:99px;padding:4px 14px;cursor:pointer;transition:border-color .15s,background .15s}
#opts button:hover,.chips button:hover{border-color:var(--ac);background:var(--acs)}

/* composer */
.composer{display:flex;align-items:flex-end;gap:8px;background:var(--sf);border-radius:22px;padding:6px 6px 6px 8px;margin-top:6px}
.composer:focus-within{box-shadow:0 0 0 2px var(--acs)}
textarea{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--fg);resize:none;min-height:44px;max-height:240px;padding:10px 12px;font-size:1.02rem;line-height:1.7;overflow-y:auto}
textarea::placeholder{color:var(--mut)}
.send{flex:none;width:36px;height:36px;border:0;border-radius:50%;background:var(--fg);color:var(--bg);display:grid;place-items:center;cursor:pointer}
.send:hover{opacity:.85}
.send:disabled{opacity:.35;cursor:default}
.cta{flex:none;height:36px;font-size:.9rem;font-weight:700;white-space:nowrap;background:var(--ac);color:var(--bg);border:0;border-radius:99px;padding:0 16px;cursor:pointer}
.cta:hover{background:var(--acd)}
.cta:disabled{opacity:.6;cursor:wait}

/* history */
.acc{border-top:1px solid var(--ln);margin-top:12px}
.acc summary{cursor:pointer;padding:10px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"▾";color:var(--mut);transition:transform .2s}
.acc[open] summary::after{transform:rotate(180deg)}
.acc ul{list-style:none;margin:0;padding:0}
.acc li{border-top:1px solid var(--ln);padding:8px 0;font-size:.92rem}
.acc li b{display:block;font-weight:600}
.lbl{font-size:.85rem;margin:12px 0 6px}
.acc .chips{padding-bottom:12px}

/* results */
.res-h{display:flex;justify-content:space-between;align-items:baseline;margin:4px 2px 12px}
#none{text-align:center;padding:28px;border:1px dashed var(--ln);border-radius:var(--r);margin:0}
#list{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card{background:var(--panel);border:1px solid var(--ln);border-radius:var(--r);padding:14px 16px;display:flex;flex-direction:column;gap:8px;transition:border-color .15s}
.card:hover{border-color:var(--ac)}
.card-h{display:flex;justify-content:space-between;align-items:center;gap:8px}
.card h3{margin:0;font-size:1rem}
.badge{flex:none;font-size:.78rem;color:var(--ac);background:var(--acs);border-radius:99px;padding:1px 9px}
.tags{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0}
.tags li{background:var(--sf);border-radius:99px;padding:0 10px;font-size:.82rem}
.tags li.hit{background:var(--hl);color:#1d1d1b;font-weight:600}
.links{margin:auto 0 0;display:flex;flex-wrap:wrap;gap:14px;font-size:.9rem;padding-top:4px}
.links a{color:var(--ac);text-decoration:none}
.links a:hover{text-decoration:underline}

@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---------- avatar ---------- */
.card{cursor:pointer}
.card-h{align-items:flex-start}
.who{flex:1;min-width:0}
.who h3{margin:0;font-size:1rem}
.sm{font-size:.85rem;margin:0}
.card-h .badge{align-self:flex-start}
.av-p{position:relative;flex:none;width:44px;height:44px;border-radius:50%;background:var(--acs);color:var(--ac);display:grid;place-items:center;overflow:hidden;font-weight:700;font-size:.95rem}
.av-p.lg{width:72px;height:72px;font-size:1.3rem}
.av-p img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ---------- card footer & tags ---------- */
.card-f{margin-top:auto;display:flex;justify-content:flex-end}
.pbtn{font-size:.85rem;color:var(--ac);background:transparent;border:1px solid var(--ln);border-radius:99px;padding:3px 12px;cursor:pointer}
.pbtn:hover{border-color:var(--ac);background:var(--acs)}
.tags li.more{background:transparent;border:1px dashed var(--ln);color:var(--mut)}

/* ---------- profile dialog ---------- */
.pm{border:0;border-radius:18px;background:var(--panel);color:var(--fg);width:min(640px,94vw);max-height:88vh;padding:0;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.pm::backdrop{background:rgba(20,20,18,.45)}
.pm[open]{animation:pmIn .22s ease}
.pm-in{position:relative;padding:22px 22px 26px;overflow-y:auto;max-height:88vh}
.pm-x{position:absolute;top:12px;inset-inline-start:12px;width:32px;height:32px;border:0;border-radius:50%;background:var(--sf);color:var(--fg);cursor:pointer}
.pm-x:hover{background:var(--ln)}
.pm-top{display:flex;gap:14px;align-items:center;padding-inline-end:36px}
.pm-top h2{margin:0;font-size:1.25rem}
.pm-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;margin:18px 0 8px}
.pm-stats div{background:var(--sf);border-radius:12px;padding:8px 10px}
.pm-stats dt{font-size:.78rem;color:var(--mut)}
.pm-stats dd{margin:0;font-weight:600}
.pm-bio{margin:12px 0 4px}
.sec{font-size:1rem;margin:20px 0 8px}
.pm-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:20px;font-size:.92rem}
.pm-links a{color:var(--ac);text-decoration:none}
.pm-links a:hover{text-decoration:underline}

/* ---------- skill tree ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:4px;align-items:center;font-size:.88rem;margin-bottom:10px}
.crumbs button{background:transparent;border:0;color:var(--ac);cursor:pointer;padding:2px 4px;border-radius:6px}
.crumbs button:hover{background:var(--acs)}
.crumbs .sep{color:var(--mut)}
.tree{min-height:60px;overflow:hidden}
.lvl{display:flex;flex-wrap:wrap;gap:8px}
.lvl.fwd{animation:lvlFwd .32s ease}
.lvl.back{animation:lvlBack .32s ease}
.node{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:.92rem;border:1px solid var(--ln);border-radius:99px;padding:6px 14px;background:transparent;color:var(--fg)}
button.node{cursor:pointer}
button.node:hover{border-color:var(--ac);background:var(--acs)}
.node.grp{font-weight:600}
.node .cnt{font-size:.75rem;color:var(--mut);background:var(--sf);border-radius:99px;padding:0 7px}
.node.hit{background:var(--hl);color:#1d1d1b;border-color:var(--hl)}
.node.hit .cnt{background:transparent;color:#1d1d1b}

@keyframes lvlFwd{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
@keyframes lvlBack{from{opacity:0;transform:translateX(-18px)}to{opacity:1;transform:none}}
@keyframes pmIn{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}