/* PRO-CLIMATE & NEUROCLIMA Joint Final Conference */
:root{
  --pro:#43766C;       /* PRO-CLIMATE green */
  --pro-deep:#2F5A52;
  --earth:#77463C;     /* PRO-CLIMATE globe */
  --navy:#033E93;      /* NEUROCLIMA navy */
  --cyan:#00B0F2;      /* NEUROCLIMA cyan */
  --orange:#FF9E00;    /* NEUROCLIMA orange */
  --paper:#F3F6F5;
  --ink:#172A2E;
  --muted:#51656A;
  --rule:#CCD8D6;
  --display:"Open Sans", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body:"Open Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --wrap:1120px;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(72px + env(safe-area-inset-top,0px))}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:1.125rem;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy)}
a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;letter-spacing:-.01em}
h2{font-size:clamp(1.9rem,3.6vw,2.6rem);font-weight:800;color:var(--ink)}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,4vw,40px)}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:8px}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(243,246,245,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--rule);padding-top:env(safe-area-inset-top,0px)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.brand{font-family:var(--display);font-weight:800;font-size:1rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{width:26px;height:26px;flex:none}
.nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0}
.nav ul a{color:var(--ink);text-decoration:none;font-weight:600;font-size:1rem}
.nav ul a:hover{color:var(--pro)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--display);font-weight:700;font-size:1rem;text-decoration:none;border-radius:999px;padding:.8em 1.5em;border:2px solid transparent;cursor:pointer;transition:background-color .15s,color .15s}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:#022c6a}
.btn-ghost{border-color:currentColor;color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.nav .btn{padding:.55em 1.2em;font-size:.95rem}
.menu-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--ink)}

/* ---------- Hero: two projects converging ---------- */
.hero{position:relative;background:var(--paper)}
.origins{display:grid;grid-template-columns:1fr 1fr;position:relative}
.origin{position:relative;z-index:2;padding:clamp(28px,5vw,64px) clamp(20px,5vw,64px) clamp(90px,11vw,150px);display:flex;flex-direction:column;gap:18px}
.origin > a:first-child{display:block;width:min(100%,320px)}
.origin img{width:100%;height:auto}
.origin p{font-size:1rem;max-width:34ch;margin:0}
.origin-pro{background:#fff;align-items:flex-end;text-align:right}
.origin-pro p{color:var(--pro-deep)}
.origin-neuro{background:var(--navy);color:#fff;align-items:flex-start}
.origin-neuro p{color:#D5E6FB}
.origin a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px;font-size:.95rem;font-weight:600}
.paths{position:absolute;inset:0;height:100%;width:100%;z-index:3;pointer-events:none;overflow:visible}
.paths path{fill:none;stroke-width:4;stroke-linecap:round;vector-effect:non-scaling-stroke}
.p-pro{stroke:var(--pro)}
.p-neuro{stroke:var(--cyan)}
.meet{position:relative;z-index:4;text-align:center;padding:0 clamp(20px,4vw,40px) clamp(56px,8vw,96px);margin-top:-11px}
.node{width:22px;height:22px;border-radius:50%;background:var(--orange);margin:0 auto 26px;box-shadow:0 0 0 6px var(--paper),0 0 0 8px var(--orange)}
.kicker{font-family:var(--display);font-weight:700;color:var(--pro);font-size:1.05rem;margin:0 0 14px}
.hero h1{font-size:clamp(2.6rem,7.4vw,5.6rem);font-weight:800;letter-spacing:-.025em;line-height:.98;max-width:14ch;margin:0 auto}
.subtitle{font-size:clamp(1.15rem,2vw,1.4rem);color:var(--muted);max-width:40ch;margin:20px auto 34px;line-height:1.4}
.when{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 36px;margin:0 0 34px;padding:0;list-style:none;font-family:var(--display);font-weight:700;font-size:clamp(1.05rem,1.8vw,1.25rem)}
.when li{display:flex;align-items:center;gap:10px}
.when svg{width:22px;height:22px;flex:none;color:var(--pro)}
.cta-row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* draw-in, only once, on load */
@media (prefers-reduced-motion:no-preference){
  .paths path{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.6s cubic-bezier(.6,.05,.25,1) .25s forwards}
  .node{transform:scale(0);animation:pop .45s cubic-bezier(.3,1.6,.5,1) 1.7s forwards}
  @keyframes draw{to{stroke-dashoffset:0}}
  @keyframes pop{to{transform:scale(1)}}
}

/* ---------- Sections ---------- */
section{padding:clamp(64px,9vw,112px) 0}
.section-head{margin-bottom:clamp(28px,4vw,48px)}
.section-head p{color:var(--muted);max-width:60ch;margin:14px 0 0}

/* About */
.about{background:#fff;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.about-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.lead{font-size:clamp(1.2rem,2vw,1.4rem);line-height:1.5;max-width:52ch}
.facts{margin:0;display:grid;gap:0;border-top:2px solid var(--ink)}
.facts div{display:grid;grid-template-columns:7.5rem 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--rule)}
.facts dt{font-family:var(--display);font-weight:700;font-size:.95rem;color:var(--muted);padding-top:2px}
.facts dd{margin:0;font-weight:600}
.facts dd small{display:block;font-weight:400;color:var(--muted);font-size:.95rem}

.projects{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,32px);margin-top:clamp(48px,6vw,72px)}
.project{padding:28px 30px;border-left:6px solid;background:var(--paper)}
.project-pro{border-color:var(--pro)}
.project-neuro{border-color:var(--navy)}
.project h3{font-size:1.35rem;font-weight:800;margin-bottom:10px}
.project-pro h3{color:var(--pro-deep)}
.project-neuro h3{color:var(--navy)}
.project p{font-size:1.02rem}
.project a{font-weight:600}

/* Audience */
.audience{margin-top:clamp(40px,5vw,56px)}
.audience h3{font-size:1.2rem;font-weight:700;margin-bottom:16px}
.tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
.tags li{border:1.5px solid var(--rule);border-radius:999px;padding:.35em 1em;font-size:1rem;background:#fff}

/* Programme */
.programme-meta{display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:18px;color:var(--muted);font-size:1rem}
.programme-meta strong{color:var(--ink)}
.agenda{list-style:none;margin:0;padding:0;position:relative}
.agenda::before{content:"";position:absolute;left:calc(6.5rem + 33px);top:10px;bottom:10px;width:2px;background:var(--rule)}
.slot{display:grid;grid-template-columns:6.5rem 24px 1fr;gap:0 22px;padding:14px 0}
.slot time{font-family:var(--display);font-weight:700;font-size:1.15rem;text-align:right;padding-top:4px;font-variant-numeric:tabular-nums}
.dot{width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid var(--ink);margin:9px auto 0;position:relative;z-index:1}
.slot h3{font-size:1.3rem;font-weight:700}
.slot p{margin:6px 0 0;color:var(--muted);font-size:1.02rem}
.slot-break h3{font-family:var(--body);font-weight:400;font-style:italic;font-size:1.1rem;color:var(--muted)}
.slot-break .dot{border-color:var(--rule);width:10px;height:10px;margin-top:11px}
.slot-session{padding:22px 0}
.slot-session .dot{background:var(--orange);border-color:var(--orange);width:18px;height:18px;margin-top:7px}
.session-card{background:#fff;padding:22px 26px 24px;border-radius:4px;position:relative;overflow:hidden}
.session-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(var(--pro) 0 50%,var(--navy) 50% 100%)}
.session-num{font-family:var(--display);font-weight:800;font-size:1rem;color:var(--pro);display:block;margin-bottom:4px}
.slot-session h3{font-size:clamp(1.4rem,2.4vw,1.75rem);font-weight:800}
.slot-end .dot{background:var(--ink)}
.agenda-note{margin-top:28px;font-size:1rem;color:var(--muted)}

/* Chairs */
.chairs{background:var(--navy);color:#fff}
.chairs h2{color:#fff}
.chairs .section-head p{color:#C9DCF7}
.chair-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(20px,3vw,32px)}
.chair{display:flex;gap:20px;align-items:center;padding:24px 0;border-top:1px solid rgba(255,255,255,.25)}
.initials{width:72px;height:72px;border-radius:50%;flex:none;display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:1.4rem;color:var(--navy)}
.chair-neuro .initials{background:var(--cyan)}
.chair-pro .initials{background:#9FD0C3}
.chair h3{font-size:1.35rem;font-weight:700}
.chair p{margin:4px 0 0;color:#C9DCF7;font-size:1.02rem}
.speakers-note{margin-top:36px;padding:22px 26px;border:1.5px dashed rgba(255,255,255,.4);border-radius:4px;color:#E3EDFB;max-width:62ch}
.speakers-note strong{color:#fff;font-family:var(--display)}

/* Venue */
.venue-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:clamp(28px,5vw,64px);align-items:stretch}
.address{font-style:normal;font-size:1.15rem;line-height:1.55;margin:0 0 24px}
.address strong{font-family:var(--display);font-size:1.3rem;display:block;margin-bottom:6px}
.venue-info h3{font-size:1.1rem;font-weight:700;margin:26px 0 8px}
.venue-info ul{margin:0;padding-left:1.1em}
.venue-info li{margin-bottom:6px}
.map{border-radius:4px;overflow:hidden;min-height:360px;background:#dde5e3;border:1px solid var(--rule)}
.map iframe{width:100%;height:100%;min-height:360px;border:0;display:block}

/* Register */
.register{background:#fff;border-top:1px solid var(--rule)}
.register-box{display:grid;grid-template-columns:1fr 1.5fr;gap:clamp(32px,6vw,80px);align-items:start}
.register-intro p{color:var(--muted);max-width:44ch}
.register-intro .btn{margin-top:8px}
.places{display:flex;align-items:baseline;gap:12px;margin:8px 0 22px;padding:16px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--rule)}
.places strong{font-family:var(--display);font-weight:800;font-size:2.4rem;line-height:1;color:var(--navy)}
.places span{color:var(--muted);font-size:1rem}

.form{background:var(--paper);padding:clamp(24px,4vw,40px);border-radius:4px;border-top:6px solid;border-image:linear-gradient(90deg,var(--pro) 0 50%,var(--navy) 50% 100%) 1}
.form fieldset{border:0;margin:0 0 28px;padding:0}
.form legend{font-family:var(--display);font-weight:700;font-size:1.15rem;margin-bottom:14px;padding:0}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-weight:600;font-size:1rem}
.field .opt{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{font:inherit;font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid #AFC0BD;border-radius:4px;padding:.7em .8em;width:100%}
.field textarea{min-height:84px;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23172A2E' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .9em center;padding-right:2.4em}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(3,62,147,.2)}
.field input[aria-invalid="true"],.field select[aria-invalid="true"]{border-color:#B3261E}
.error{color:#B3261E;font-size:.92rem;min-height:0}
.error:empty{display:none}
.checks{display:flex;flex-direction:column;gap:12px}
.check{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:start;font-size:1rem;line-height:1.45}
.check input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--navy)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px}
.form-foot small{color:var(--muted);font-size:.92rem}
.btn[disabled]{opacity:.6;cursor:progress}
.form-msg{margin-top:20px;padding:16px 20px;border-radius:4px;font-size:1rem}
.form-msg:empty{display:none}
.form-msg.ok{background:#E3F1EC;border-left:5px solid var(--pro);color:var(--pro-deep)}
.form-msg.err{background:#FBEAE8;border-left:5px solid #B3261E;color:#7A1A14}
.form-done{text-align:left}
.form-done h3{font-size:1.5rem;font-weight:800;color:var(--pro-deep);margin-bottom:10px}

/* Footer */
footer{background:var(--ink);color:#C6D2D4;padding:56px 0 40px;font-size:.98rem}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px;align-items:flex-start;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.15)}
.footer-logos{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.logo-chip{display:block;padding:14px 18px;border-radius:4px}
.logo-chip-pro{background:#fff}
.logo-chip-neuro{background:var(--navy)}
.logo-chip img{height:40px;width:auto}
.footer-links{display:flex;flex-direction:column;gap:6px}
.footer-links a{color:#fff}
.eu{display:flex;gap:18px;align-items:flex-start;padding-top:28px;max-width:80ch}
.eu svg{flex:none;width:66px;height:44px}
.eu p{margin:0;font-size:.9rem;line-height:1.5}
.copy{margin-top:24px;font-size:.88rem;color:#8FA2A6}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .about-grid,.venue-grid,.register-box{grid-template-columns:1fr}
  .projects,.chair-grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr;gap:0}
}
@media (max-width:760px){
  .menu-toggle{display:block}
  .nav ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--paper);border-bottom:1px solid var(--rule);padding:8px 0}
  .nav ul.open{display:flex}
  .nav ul a{display:block;padding:12px clamp(20px,4vw,40px)}
  .nav .btn{display:none}
  .origin p{display:none}
  .origin a{font-size:.85rem}
  .agenda::before{left:calc(4rem + 23px)}
  .slot{grid-template-columns:4rem 20px 1fr;gap:0 14px}
  .slot time{font-size:1rem}
  .session-card{padding:18px 18px 20px 22px}
}