/* AICTEM — African Institute for Climate, Trade and Economic Modelling
   Site styles. Growth Lab–inspired academic layout in the AICTEM palette. */

:root{
  --navy:#123f63; --navy-d:#0e3150; --blue:#1c6ea4;
  --green:#3f9b46; --green-d:#2e7d39;
  --ink:#1d2733; --muted:#5d6b79; --line:#e3e9ef;
  --bg:#ffffff; --soft:#f4f7fa; --soft2:#eef3f7;
  --climate:#2e8b57; --growth:#14507d; --trade:#c1611f; --infra:#6b4fa1;
  --maxw:1200px; --radius:10px;
  --shadow:0 1px 3px rgba(18,63,99,.08),0 8px 24px rgba(18,63,99,.06);
  --serif:Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media(min-width:981px){html{scroll-padding-top:120px}}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);line-height:1.2;font-weight:700}
h1{font-size:2.6rem;margin:.2em 0 .35em}
h2{font-size:1.9rem;margin:0 0 .5em}
h3{font-size:1.25rem;margin:0 0 .4em}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.center{text-align:center}
section{padding:64px 0}
.sec-soft{background:var(--soft)}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:700;
  color:var(--green-d);font-family:var(--sans);margin-bottom:.6em}
p+.eyebrow,ol+.eyebrow,ul+.eyebrow{margin-top:2.8em}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-family:var(--sans);font-weight:600;font-size:.95rem;
  padding:12px 22px;border-radius:6px;cursor:pointer;border:1px solid transparent;transition:.15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-d);color:#fff}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-d);color:#fff}
.btn-ghost{background:transparent;border-color:#ffffff66;color:#fff}
.btn-ghost:hover{background:#ffffff1a;color:#fff}
.btn-outline{background:#fff;border-color:var(--line);color:var(--navy)}
.btn-outline:hover{border-color:var(--navy)}
.btn-sm{padding:8px 14px;font-size:.86rem}

/* ---------- Header / nav ---------- */
.topbar{display:none;align-items:flex-end;background:var(--navy-d);color:#cfe0ee;font-size:.82rem;overflow:hidden;will-change:height}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;width:100%}
.topbar a{color:#cfe0ee}
.topbar .socials{display:flex;align-items:center;gap:18px}
.topbar .socials a{display:flex;align-items:center;opacity:.9}
.topbar .socials a:hover{opacity:1;text-decoration:none}
.topbar .socials a img{display:block;width:16px;height:16px}
.topbar-title{font-weight:600;letter-spacing:.01em}
header.site{position:sticky;top:0;z-index:1100;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(18,63,99,.04)}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:52px;width:auto}
.brand .bt{font-family:var(--serif);font-weight:700;color:var(--navy);line-height:1.05}
.brand .bt b{display:block;font-size:1.18rem}
.brand .bt span{font-size:.7rem;letter-spacing:.04em;color:var(--muted);font-family:var(--sans);text-transform:uppercase}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu>li{position:relative}
.menu>li>a{display:block;padding:10px 14px;color:var(--navy);font-weight:600;font-size:.95rem;border-radius:6px}
.menu>li>a:hover,.menu>li.active>a{background:var(--soft2);text-decoration:none}
.menu .has>a::after{content:"▾";font-size:.7em;margin-left:5px;color:var(--muted)}
.dropdown{position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line);
  border-radius:8px;box-shadow:var(--shadow);padding:8px;display:none}
.menu .has:hover .dropdown,.menu .has.open .dropdown{display:block}
.dropdown a{display:block;padding:9px 12px;border-radius:6px;color:var(--ink);font-size:.92rem}
.dropdown a:hover{background:var(--soft);text-decoration:none;color:var(--navy)}
.dropdown small{display:block;color:var(--muted);font-weight:400;font-size:.78rem}
.navtoggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--navy);cursor:pointer;position:relative;z-index:2}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(rgba(14,49,80,.62),rgba(14,49,80,.62)),url('../img/bg/hero-compound.jpg') center/cover no-repeat;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 55% 90% at 18% 55%,rgba(5,20,40,.42) 0%,transparent 100%)}
.hero::after{content:"";position:absolute;right:-80px;top:-60px;width:520px;height:520px;
  background:radial-gradient(circle,#ffffff14,transparent 70%)}
.hero .wrap{position:relative;padding:96px 24px}
.hero h1{color:#fff;max-width:16ch;font-size:3.1rem}
.hero p.lead{font-size:1.25rem;color:#dce8f1;max-width:60ch}
.hero .cta{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.hero .pill{display:inline-block;background:#ffffff1f;border:1px solid #ffffff33;color:#eaf2f8;
  padding:5px 12px;border-radius:999px;font-size:.8rem;font-weight:600;margin-bottom:18px}

/* ---------- Grids / cards ---------- */
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:.18s;height:100%}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:3px 9px;border-radius:4px;color:#fff;margin-bottom:12px}
.card h3 a{color:var(--navy)}
.card .ico{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;color:#fff;margin-bottom:14px}
.card-text{margin:0 0 .5em}
.card-text.is-clamped{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.card-more{display:inline-block;margin:0 0 1em;font-weight:600}
.card-actions{margin-top:.25em}

/* ---------- Stats band ---------- */
.stats{background:var(--navy);color:#fff;text-align:center}
.stats .grid{grid-template-columns:repeat(5,1fr)}
.stats .n{font-family:var(--serif);font-size:2.8rem;font-weight:700;color:#fff;line-height:1}
.stats .l{color:#bcd2e4;font-size:.9rem;margin-top:6px}

/* ---------- Page header ---------- */
.pagehead{background:#0e3150;background-size:cover;background-position:center;color:#fff;padding:60px 0 50px}
.pagehead h1{color:#fff;margin:0}
.pagehead p{color:#cfe0ee;max-width:70ch;margin:.6em 0 0}
.crumbs{font-size:.82rem;color:#9fb8cc;margin-bottom:10px}
.crumbs a{color:#cfe0ee}

/* ---------- Prose ---------- */
.prose{max-width:820px}
.prose h2{margin-top:1.4em}
.eyebrow+h2{margin-top:.66em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em}
.prose li{margin-bottom:.5em}
.figure{margin:28px 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.figure img{width:100%}
.figure figcaption{padding:12px 16px;font-size:.86rem;color:var(--muted);background:var(--soft);border-top:1px solid var(--line)}
.app-rotator{width:var(--app-rotator-width,100%);max-width:100%;border-radius:0;transition:width 1.2s ease}
.app-rotator-frame{position:relative;height:320px;background:var(--soft);overflow:hidden}
.app-rotator-frame img{position:absolute;left:50%;top:50%;width:auto;height:100%;max-width:100%;transform:translate(-50%,-50%) scale(1.01);object-fit:contain;opacity:0;filter:blur(10px);transition:opacity 1.6s ease,filter 1.6s ease,transform 1.6s ease}
.app-rotator-frame img.is-active{opacity:1;filter:blur(0);transform:translate(-50%,-50%) scale(1)}
@media (prefers-reduced-motion:reduce){
  .app-rotator,.app-rotator-frame img{transition:none}
}
.coverage-map-card{display:block;position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#dbe4e8;box-shadow:0 10px 24px rgba(18,63,99,.08);color:var(--ink)}
.coverage-map-card:hover{text-decoration:none;box-shadow:var(--shadow);transform:translateY(-2px)}
.coverage-map-card img{display:block;width:100%;height:300px;object-fit:cover;object-position:center 50%;filter:saturate(.95) contrast(.98)}
.coverage-badge{position:absolute;right:22px;top:22px;background:#fffffff2;border:1px solid var(--line);border-radius:10px;padding:10px 14px;box-shadow:0 8px 20px rgba(18,63,99,.12);text-align:left}
.coverage-badge strong{display:block;font-family:var(--serif);font-size:2.35rem;line-height:1;color:var(--navy)}
.coverage-badge span{display:block;color:var(--muted);font-size:.78rem;margin-top:4px}
.coverage-map-meta{position:absolute;left:18px;bottom:16px;display:flex;gap:8px;flex-wrap:wrap}
.coverage-map-meta span{font-size:.78rem;font-weight:700;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 10px}

/* ---------- Publications repository ---------- */
.repo{display:grid;grid-template-columns:288px 1fr;gap:34px;align-items:start}
.filters{position:sticky;top:120px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.filters h4{font-family:var(--sans);text-transform:uppercase;letter-spacing:.08em;font-size:.74rem;
  color:var(--muted);margin:18px 0 10px}
.filters h4:first-child{margin-top:0}
.searchbox{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:6px;font-size:.95rem}
.facet{display:block;font-size:.92rem;padding:5px 0;cursor:pointer;color:var(--ink)}
.facet input{margin-right:8px}
.facet .ct{color:var(--muted);font-size:.82rem}
.facet.swatch::before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:7px;vertical-align:middle}
.facet.compact{font-size:.86rem;margin-top:8px;color:var(--muted)}
select.csel{width:100%;padding:10px;border:1px solid var(--line);border-radius:6px;font-size:.92rem}
.rangefilter{--lo:0%;--hi:100%;--lo-pill:12px;--hi-pill:calc(100% - 12px);font-size:.86rem;color:var(--muted);padding:2px 13px 0}
.rangevals{position:relative;height:28px;margin-bottom:2px;font-weight:700;color:#fff}
.rangevals span{position:absolute;top:0;left:var(--lo-pill);transform:translateX(-50%);background:var(--blue);border-radius:6px;padding:3px 7px;line-height:1.2}
.rangevals span:last-child{left:var(--hi-pill)}
.rangebox{position:relative;height:34px}
.rangetrack{position:absolute;left:0;right:0;top:13px;height:8px;border-radius:999px;background:#d8dce0;box-shadow:inset 0 1px 2px rgba(0,0,0,.22)}
.rangetrack span{position:absolute;left:var(--lo);right:calc(100% - var(--hi));top:0;bottom:0;border-radius:999px;background:var(--blue)}
.rangebox input[type=range]{position:absolute;left:0;top:0;width:100%;height:34px;margin:0;background:transparent;pointer-events:none;-webkit-appearance:none;appearance:none}
.rangebox input[type=range]::-webkit-slider-runnable-track{height:8px;background:transparent}
.rangebox input[type=range]::-moz-range-track{height:8px;background:transparent;border:0}
.rangebox input[type=range]::-webkit-slider-thumb{width:24px;height:24px;border-radius:50%;border:2px solid #c9ced3;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.3);pointer-events:auto;-webkit-appearance:none;appearance:none;margin-top:-8px}
.rangebox input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;border:2px solid #c9ced3;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.3);pointer-events:auto}
.rangebounds{display:flex;justify-content:space-between;margin-top:2px;font-weight:700;color:var(--muted)}
.clearbtn{margin-top:14px;font-size:.85rem;background:none;border:0;color:var(--blue);cursor:pointer;padding:0}
.resbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.resbar .n{font-weight:700;color:var(--navy)}
.pub{border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-bottom:14px;transition:.15s}
.pub:hover{box-shadow:var(--shadow)}
.pub .tagrow{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.pub .tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:3px 9px;border-radius:4px;color:#fff;margin-bottom:8px}
.pub .tagrow .tag{margin-bottom:0}
.pub .tag-type{background:#e9edf1;color:var(--ink)}
.pub h3{font-size:1.18rem;margin:.1em 0 .3em}
.pub .meta{color:var(--muted);font-size:.86rem;margin-bottom:12px}
.pub .abst{color:var(--ink);font-size:.92rem;line-height:1.55;margin-bottom:14px}
.pub .acts a{margin-right:14px;font-weight:600;font-size:.9rem}
.empty{padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}

/* ---------- Maps ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.tab{padding:10px 18px;border:1px solid var(--line);background:#fff;border-radius:999px;cursor:pointer;
  font-weight:600;font-size:.92rem;color:var(--navy)}
.tab.active{color:#fff;border-color:transparent}
#map{height:620px;border:1px solid var(--line);border-radius:var(--radius);background:#eaf1f6}
.maplegend{background:#fff;padding:10px 12px;border-radius:6px;box-shadow:var(--shadow);font-size:.84rem;line-height:1.7}
.maplegend i{width:14px;height:14px;display:inline-block;margin-right:7px;border-radius:2px;vertical-align:middle}
.leaflet-tooltip.aictem{font-family:var(--sans);font-size:.85rem}

/* ---------- Downloads (WB-style) ---------- */
.regionblock{margin-bottom:38px}
.regionblock h2{border-bottom:2px solid var(--green);padding-bottom:8px;display:inline-block}
.ccards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.ccard{display:block;border:1px solid var(--line);border-radius:8px;padding:16px;background:#fff;transition:.15s;color:var(--ink)}
.ccard:hover{box-shadow:var(--shadow);transform:translateY(-2px);text-decoration:none}
.ccard b{display:block;color:var(--navy);font-family:var(--serif);font-size:1.05rem;margin-bottom:6px}
.ccard .dots{display:flex;gap:5px}
.ccard .dot{width:9px;height:9px;border-radius:50%}
.ccard .rg{font-size:.78rem;color:var(--muted)}

/* ---------- Country detail ---------- */
.detail{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.repcard{border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:18px}
.repcard .tag{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:3px 9px;border-radius:4px;color:#fff;margin-bottom:10px}
.sidebox{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--soft)}
.sidebox dt{font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-top:14px}
.sidebox dt:first-child{margin-top:0}
.sidebox dd{margin:2px 0 0;font-weight:600;color:var(--navy)}

/* ---------- News ---------- */
.newsgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ncard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.16s;display:flex;flex-direction:column}
.ncard:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.ncard .thumb{height:150px;background:linear-gradient(120deg,var(--navy),var(--green));display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem}
.ncard .body{padding:20px}
.ncard .kind{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--green-d)}
.ncard h3{font-size:1.12rem;margin:.3em 0}
.subnav{display:flex;gap:8px;margin-bottom:30px;flex-wrap:wrap}
.subnav a{padding:8px 16px;border-radius:999px;background:var(--soft);font-weight:600;font-size:.9rem;color:var(--navy)}
.subnav a.active{background:var(--navy);color:#fff}

/* ---------- Footer ---------- */
footer.site{background:var(--navy-d);color:#b9cde0;padding:56px 0 28px;font-size:.92rem}
footer.site h4{color:#fff;font-family:var(--sans);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px}
footer.site a{color:#b9cde0;display:block;padding:4px 0}
footer.site a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.foot-brand img{height:56px;margin-bottom:14px}
.foot-soc{display:flex;flex-direction:row;flex-wrap:wrap;gap:20px;margin-top:4px}
footer.site .foot-soc a{display:flex;align-items:center;justify-content:center;padding:0;color:#cfe0ee}
footer.site .foot-soc a:hover{color:#fff}
.foot-soc a img{display:block;width:24px;height:24px;opacity:.9}
.foot-soc a:hover img{opacity:1;filter:brightness(1.15)}
.prose .foot-soc a img{opacity:1}
.contact-follow{margin-top:28px}
.social-brand{display:flex;flex-direction:row;flex-wrap:wrap;gap:24px;margin-top:16px}
.social-brand a{display:flex;align-items:center;justify-content:center;padding:0;transition:transform .15s}
.social-brand a:hover{transform:translateY(-2px)}
.social-brand a img{display:block;width:28px;height:28px}
.foot-bottom{border-top:1px solid #ffffff1f;margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:#88a3bc;font-size:.84rem}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .g3,.g4,.stats .grid,.newsgrid,.ccards{grid-template-columns:repeat(2,1fr)}
  .repo,.detail{grid-template-columns:1fr}
  .filters{position:static}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav{height:64px}
  .menu{position:fixed;top:0;right:0;height:100vh;width:280px;background:#fff;flex-direction:column;
    align-items:stretch;padding:68px 16px 24px;box-shadow:var(--shadow);transform:translateX(100%);transition:.25s;gap:2px;overflow-y:auto}
  .menu.open{transform:translateX(0)}
  .menu>li>a{padding:12px}
  .dropdown{position:static;display:block;border:0;box-shadow:none;padding:0 0 0 12px;min-width:0}
  .menu .has>a::after{display:none}
  .navtoggle{display:block}
}
@media(min-width:981px){
  .topbar{display:flex}
}
@media(max-width:620px){
  body{font-size:16px}
  h1,.hero h1{font-size:2.1rem}
  .g3,.g4,.newsgrid,.ccards,.g2{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:repeat(2,1fr)}
  .hero .wrap{padding:64px 24px}
  section{padding:44px 0}
  .brand .bt span{display:none}
  .foot-grid{grid-template-columns:1fr}
}

/* ===================== AI Research Assistant (ai.html) ===================== */
body.ai-body{overflow:hidden}
.ai-app{display:flex;position:relative;background:var(--soft);overflow:hidden}

/* sidebar */
.ai-side{width:280px;flex:0 0 280px;display:flex;flex-direction:column;background:#fff;
  border-right:1px solid var(--line);z-index:30}
.ai-side-head{padding:14px}
.ai-newchat{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;
  padding:10px 14px;border:0;border-radius:var(--radius);background:var(--navy);color:#fff;
  font:600 .95rem var(--sans);cursor:pointer;transition:background .15s}
.ai-newchat:hover{background:var(--navy-d)}
.ai-chatlist{flex:1;overflow-y:auto;padding:0 8px 8px}
.ai-chatitem{display:flex;align-items:center;gap:6px;padding:9px 10px;margin-bottom:2px;
  border-radius:8px;cursor:pointer;border:1px solid transparent}
.ai-chatitem:hover{background:var(--soft)}
.ai-chatitem.active{background:var(--soft2);border-color:var(--line)}
.ai-chatitem-txt{flex:1;min-width:0}
.ai-chatitem-txt b{display:block;font:600 .88rem var(--sans);color:var(--ink);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ai-chatitem-txt span{font-size:.74rem;color:var(--muted)}
.ai-chatitem-del{flex:0 0 auto;border:0;background:none;color:var(--muted);font-size:1.05rem;
  line-height:1;padding:2px 6px;border-radius:6px;cursor:pointer;opacity:0;transition:opacity .12s}
.ai-chatitem:hover .ai-chatitem-del{opacity:1}
.ai-chatitem-del:hover{background:#fbe9e7;color:#b3352f}
.ai-side-foot{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--line);
  font-size:.76rem;color:var(--muted)}
.ai-kb-dot{width:8px;height:8px;border-radius:50%;background:#c3ccd4;flex:0 0 auto}
.ai-kb-dot.ok{background:var(--green)}
.ai-kb-dot.err{background:#c94b3f}
.ai-backdrop{position:absolute;inset:0;background:rgba(14,49,80,.35);z-index:20}

/* main column */
/* .ai-main is a <section>: cancel the global section{padding:64px 0} so the
   topbar sits flush at the top and the composer at the bottom */
.ai-main{flex:1;display:flex;flex-direction:column;min-width:0;padding:0}
.ai-topbar{display:flex;align-items:center;gap:12px;padding:10px 20px;background:#fff;
  border-bottom:1px solid var(--line)}
.ai-sidetoggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;
  padding:5px 10px;font-size:1rem;color:var(--navy);cursor:pointer}
.ai-topbar-title{flex:1;min-width:0}
.ai-topbar-title b{font-family:var(--serif);color:var(--navy);font-size:1.05rem}
.ai-topbar-title span{display:block;font-size:.76rem;color:var(--muted)}
.ai-topbar-link{font-size:.85rem;white-space:nowrap}
.ai-scroll{flex:1;overflow-y:auto;scroll-behavior:smooth}
.ai-thread{max-width:860px;margin:0 auto;padding:28px 20px 12px}

/* messages */
.ai-msg{margin-bottom:22px}
.ai-msg.user{display:flex;justify-content:flex-end}
.ai-msg.user .ai-bubble{max-width:78%;background:var(--navy);color:#fff;padding:11px 16px;
  border-radius:16px 16px 4px 16px;font-size:.97rem;line-height:1.55;
  box-shadow:0 1px 2px rgba(18,63,99,.15);overflow-wrap:break-word}
.ai-msg.assistant{display:flex;gap:12px;align-items:flex-start}
.ai-avatar{flex:0 0 30px;width:30px;height:30px;border-radius:50%;background:#fff;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.ai-avatar img{width:20px;height:20px;object-fit:contain}
.ai-msg.assistant .ai-bubble{flex:1;min-width:0;background:#fff;border:1px solid var(--line);
  border-radius:4px 16px 16px 16px;padding:16px 20px;box-shadow:var(--shadow)}

/* markdown body */
.ai-md{font-size:.96rem;line-height:1.62}
.ai-md>*:first-child{margin-top:0}
.ai-md>*:last-child{margin-bottom:0}
.ai-md p{margin:0 0 .8em}
.ai-md h2{font-size:1.15rem;margin:1em 0 .4em}
.ai-md h3{font-size:1.02rem;margin:.9em 0 .35em}
.ai-md h4{font-size:.95rem;margin:.8em 0 .3em}
.ai-md ul,.ai-md ol{margin:0 0 .8em;padding-left:1.4em}
.ai-md li{margin-bottom:.25em}
.ai-md code{background:var(--soft2);border-radius:4px;padding:.1em .35em;font-size:.87em}
.ai-md pre{background:var(--soft2);border:1px solid var(--line);border-radius:8px;
  padding:12px 14px;overflow-x:auto;font-size:.84rem;line-height:1.5;margin:0 0 .9em}
.ai-md pre code{background:none;padding:0}
.ai-md blockquote{margin:0 0 .9em;padding:6px 14px;border-left:3px solid var(--blue);
  background:var(--soft);border-radius:0 8px 8px 0;color:var(--muted)}
.ai-md hr{border:0;border-top:1px solid var(--line);margin:1em 0}
.ai-tablewrap{overflow-x:auto;margin:0 0 1em;border:1px solid var(--line);border-radius:8px}
.ai-md table{border-collapse:collapse;width:100%;font-size:.86rem;line-height:1.4}
.ai-md th{background:var(--soft2);color:var(--navy);text-align:left;font-weight:700;
  padding:8px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.ai-md td{padding:7px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.ai-md tr:last-child td{border-bottom:0}
.ai-md tbody tr:nth-child(even){background:var(--soft)}

/* figures */
.ai-fig{margin:.4em 0 1em;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;padding:10px;max-width:640px}
.ai-fig img{width:100%;height:auto;max-height:440px;object-fit:contain;border-radius:6px}
.ai-fig figcaption{font-size:.8rem;color:var(--muted);margin-top:8px;line-height:1.45}

/* citations + sources */
.ai-cite{display:inline-block;vertical-align:super;font-size:.68em;font-weight:700;
  background:var(--soft2);color:var(--blue);border-radius:4px;padding:0 4px;margin:0 1px;
  text-decoration:none;line-height:1.5}
.ai-cite:hover{background:var(--blue);color:#fff;text-decoration:none}
.ai-sources{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:12px;
  padding-top:10px;border-top:1px dashed var(--line)}
.ai-sources-label{font-size:.72rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.06em;color:var(--muted);margin-right:2px}
.ai-srcchip{display:inline-flex;align-items:center;gap:5px;font-size:.76rem;color:var(--ink);
  background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:3px 10px;
  text-decoration:none;max-width:100%}
.ai-srcchip b{color:var(--blue)}
a.ai-srcchip:hover{border-color:var(--blue);background:#fff;text-decoration:none}
.ai-error{margin-top:10px;font-size:.85rem;color:#b3352f;background:#fdf1f0;
  border:1px solid #f2cfcb;border-radius:8px;padding:8px 12px}

/* typing indicator + caret */
.ai-typing{display:flex;gap:5px;padding:6px 0}
.ai-typing span{width:7px;height:7px;border-radius:50%;background:var(--blue);opacity:.35;
  animation:ai-blink 1.2s infinite}
.ai-typing span:nth-child(2){animation-delay:.2s}
.ai-typing span:nth-child(3){animation-delay:.4s}
@keyframes ai-blink{0%,80%,100%{opacity:.25}40%{opacity:.9}}
.ai-caret{display:inline-block;width:8px;height:1.05em;vertical-align:text-bottom;
  background:var(--blue);margin-left:2px;animation:ai-caret 1s steps(2) infinite}
@keyframes ai-caret{50%{opacity:0}}

/* welcome */
.ai-welcome{text-align:center;padding:7vh 12px 24px;max-width:640px;margin:0 auto}
.ai-welcome-logo{width:60px;height:60px;object-fit:contain;margin:0 auto 14px}
.ai-welcome h2{margin-bottom:.4em}
.ai-welcome p{font-size:.95rem}
.ai-sugg{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
.ai-sugg-chip{text-align:left;font:400 .88rem/1.45 var(--sans);color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:12px 14px;cursor:pointer;transition:border-color .15s,box-shadow .15s}
.ai-sugg-chip:hover{border-color:var(--blue);box-shadow:var(--shadow)}

/* composer */
.ai-composer{background:#fff;border-top:1px solid var(--line);padding:12px 20px 10px}
.ai-inputrow{display:flex;align-items:flex-end;gap:10px;max-width:860px;margin:0 auto}
.ai-input{flex:1;resize:none;border:1px solid var(--line);border-radius:14px;
  padding:11px 16px;font:400 .97rem/1.5 var(--sans);color:var(--ink);background:var(--soft);
  max-height:160px;outline:none;transition:border-color .15s,background .15s}
.ai-input:focus{border-color:var(--blue);background:#fff}
.ai-send{flex:0 0 44px;width:44px;height:44px;border:0;border-radius:50%;background:var(--navy);
  color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .15s}
.ai-send:hover{background:var(--blue)}
.ai-send.stopping{background:#b3352f}
.ai-note{max-width:860px;margin:8px auto 0;font-size:.72rem;color:var(--muted);text-align:center}

/* responsive */
@media(max-width:980px){
  .ai-side{position:absolute;top:0;bottom:0;left:0;transform:translateX(-102%);
    transition:transform .22s ease;box-shadow:0 0 32px rgba(14,49,80,.25)}
  .ai-side.open{transform:translateX(0)}
  .ai-sidetoggle{display:block}
  .ai-topbar-link{display:none}
}
@media(max-width:620px){
  .ai-thread{padding:18px 12px 8px}
  .ai-msg.user .ai-bubble{max-width:90%}
  .ai-msg.assistant .ai-bubble{padding:13px 14px}
  .ai-sugg{grid-template-columns:1fr}
  .ai-composer{padding:10px 12px 8px}
  .ai-welcome{padding-top:4vh}
}