/* 11th CI-RNC-WS · Porto Alegre 2027 */
@font-face{font-family:"Oswald";font-weight:500;font-style:normal;font-display:swap;src:url("../fonts/oswald-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Oswald";font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/oswald-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Oswald";font-weight:700;font-style:normal;font-display:swap;src:url("../fonts/oswald-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Source Sans 3";font-weight:400;font-style:normal;font-display:swap;src:url("../fonts/source-sans-3-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Source Sans 3";font-weight:600;font-style:normal;font-display:swap;src:url("../fonts/source-sans-3-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Source Sans 3";font-weight:700;font-style:normal;font-display:swap;src:url("../fonts/source-sans-3-latin-700-normal.woff2") format("woff2")}

:root{
  --red:#E2081E; --orange:#F9560F; --amber:#FEBB1C; --yellow:#FEDB43;
  --sky:#ACDEFA; --blue:#61BCF6; --royal:#1F7ADB; --navy:#0E399F; --deep:#0E297D;
  --ink:#14213d; --muted:#4a5778; --line:#dfe6f3; --bg:#ffffff; --bg-soft:#f4f8fe; --bg-warm:#fff8ea;
  --flame:linear-gradient(90deg,var(--red),var(--orange),var(--amber),var(--yellow),var(--sky),var(--blue),var(--royal),var(--navy));
  --radius:14px; --maxw:1140px;
  --display:"Oswald","Arial Narrow",Impact,sans-serif;
  --text:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--text);font-size:18px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--red)}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.15;margin:0 0 .5em;letter-spacing:.01em}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem);text-transform:uppercase;color:var(--navy)}
h3{font-size:1.35rem;color:var(--deep)}
p{margin:0 0 1em}
.wrap{width:min(100% - 32px,var(--maxw));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px;z-index:200}
.skip:focus{left:8px;color:#fff}
:focus-visible{outline:3px solid var(--royal);outline-offset:2px;border-radius:4px}
.flame-bar{height:6px;background:var(--flame)}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--deep);flex-shrink:0}
.brand img{width:46px;height:46px}
.brand b{display:block;font-family:var(--display);font-size:1.25rem;line-height:1;letter-spacing:.02em;text-transform:uppercase;color:var(--red)}
.brand small{display:block;font-family:var(--display);font-weight:500;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--navy)}
nav.main{margin-left:auto}
nav.main ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
nav.main a{display:block;padding:10px 12px;border-radius:8px;font-family:var(--display);font-weight:500;font-size:.95rem;letter-spacing:.05em;text-transform:uppercase;text-decoration:none;color:var(--ink)}
nav.main a:hover{background:var(--bg-soft);color:var(--navy)}
nav.main a[aria-current="page"]{color:var(--red);box-shadow:inset 0 -3px 0 var(--red);border-radius:8px 8px 0 0}
.lang{display:flex;border:1.5px solid var(--navy);border-radius:999px;overflow:hidden;font-family:var(--display);font-size:.85rem;letter-spacing:.06em;flex-shrink:0}
.lang a,.lang span{padding:5px 12px;text-decoration:none;line-height:1.3}
.lang span{background:var(--navy);color:#fff}
.lang a{color:var(--navy)}
.lang a:hover{background:var(--sky);color:var(--deep)}
.menu-btn{display:none;margin-left:auto;background:none;border:1.5px solid var(--navy);color:var(--navy);border-radius:8px;padding:6px 12px;font:600 .95rem var(--display);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(1200px 600px at 85% 20%,rgba(97,188,246,.35),transparent 60%),linear-gradient(135deg,var(--deep),var(--navy) 70%,#1458c4)}
.hero::before{content:"";position:absolute;inset:auto -10% -35% -10%;height:60%;background:radial-gradient(60% 100% at 30% 100%,rgba(249,86,15,.55),transparent 70%),radial-gradient(50% 90% at 75% 100%,rgba(254,187,28,.4),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:64px 0 72px}
.eyebrow{display:inline-block;font-family:var(--display);font-weight:500;letter-spacing:.14em;text-transform:uppercase;font-size:.95rem;color:var(--yellow);margin-bottom:12px}
.hero h1{font-size:clamp(2.1rem,5.2vw,3.9rem);text-transform:uppercase;font-weight:700;margin-bottom:.35em}
.hero h1 em{font-style:normal;color:var(--yellow)}
.hero .lead{font-size:1.25rem;max-width:34em;color:#e8efff}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 28px;padding:0;list-style:none}
.facts li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 16px;font-family:var(--display);letter-spacing:.04em;font-size:1rem}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;font-family:var(--display);font-weight:600;letter-spacing:.07em;text-transform:uppercase;text-decoration:none;font-size:.98rem;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.2)}
.btn-primary{background:var(--amber);color:var(--deep)}
.btn-primary:hover{background:var(--yellow);color:var(--deep)}
.btn-ghost{border:2px solid #fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-solid{background:var(--navy);color:#fff}
.btn-solid:hover{background:var(--red);color:#fff}
.hero-art{display:flex;flex-direction:column;align-items:center;gap:22px}
.hero-art img{width:min(100%,400px);filter:drop-shadow(0 20px 40px rgba(0,0,0,.35));animation:float 9s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-10px) rotate(2deg)}}
.countdown{display:flex;gap:10px;justify-content:center}
.countdown div{min-width:74px;text-align:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:12px;padding:8px 6px}
.countdown b{display:block;font-family:var(--display);font-size:1.9rem;line-height:1.1;color:var(--yellow)}
.countdown small{font-family:var(--display);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:#cfdcff}

/* page heading */
.page-head{background:linear-gradient(135deg,var(--deep),var(--navy));color:#fff;padding:44px 0 40px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-60px;top:-60px;width:300px;height:300px;border-radius:50%;background:url("../img/logo-simbolo.png") center/cover;opacity:.16}
.page-head h1{font-size:clamp(2rem,4.5vw,3rem);text-transform:uppercase;margin:0;position:relative}
.page-head p{margin:.4em 0 0;color:#d6e3ff;font-size:1.15rem;position:relative}

/* sections */
section{padding:64px 0}
section.soft{background:var(--bg-soft)}
section.warm{background:var(--bg-warm)}
.section-title{display:flex;align-items:center;gap:14px;margin-bottom:28px}
.section-title::before{content:"";width:12px;height:36px;border-radius:6px;background:linear-gradient(var(--red),var(--amber))}
.section-title h2{margin:0}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 2px 10px rgba(14,57,159,.05)}
.card h3{margin-bottom:.4em}
.card.accent{border-top:5px solid var(--orange)}
.card.accent.b{border-top-color:var(--royal)}
.card.accent.y{border-top-color:var(--amber)}
.card.accent.r{border-top-color:var(--red)}
.stat{text-align:center}
.stat b{display:block;font-family:var(--display);font-size:2.6rem;line-height:1;color:var(--red)}
.stat span{font-size:1rem;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split.top{align-items:start}
.photo{border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 30px rgba(14,41,125,.18)}
.photo figcaption{font-size:.88rem;color:var(--muted);padding:8px 12px;background:#fff}
figure{margin:0}
.lede{font-size:1.2rem;color:var(--muted)}
.note{background:var(--bg-warm);border-left:5px solid var(--amber);padding:14px 18px;border-radius:0 10px 10px 0;font-size:.98rem;margin:20px 0}
ul.clean{list-style:none;padding:0;margin:0 0 1em}
ul.clean li{padding:6px 0 6px 28px;position:relative}
ul.clean li::before{content:"";position:absolute;left:4px;top:.95em;width:11px;height:11px;border-radius:50%;background:linear-gradient(135deg,var(--red),var(--amber))}

/* dates / timeline */
.timeline{list-style:none;padding:0;margin:0;border-left:4px solid var(--amber);display:grid;gap:18px}
.timeline li{position:relative;padding-left:26px}
.timeline li::before{content:"";position:absolute;left:-12px;top:6px;width:20px;height:20px;border-radius:50%;background:#fff;border:5px solid var(--red)}
.timeline time{font-family:var(--display);font-weight:600;color:var(--red);letter-spacing:.05em;text-transform:uppercase;display:block}
.timeline.tbd li::before{border-color:var(--blue)}
.timeline.tbd time{color:var(--royal)}

/* people */
.people{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));list-style:none;margin:0;padding:0}
.person{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;border-left:5px solid var(--royal)}
.person strong{display:block;font-size:1.08rem;line-height:1.3}
.person .role{font-family:var(--display);font-size:.85rem;letter-spacing:.07em;text-transform:uppercase;color:var(--red)}
.person small{display:block;color:var(--muted);font-size:.93rem;line-height:1.4;margin-top:2px}
.person.lead{border-left-color:var(--red)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.badges li{background:#fff;border:1.5px solid var(--navy);color:var(--navy);padding:6px 16px;border-radius:999px;font-family:var(--display);letter-spacing:.04em}

/* schedule */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tab{background:#fff;border:1.5px solid var(--navy);color:var(--navy);padding:9px 16px;border-radius:999px;font:600 .95rem var(--display);letter-spacing:.05em;text-transform:uppercase;cursor:pointer;text-align:center;line-height:1.2}
.tab small{display:block;font-weight:500;font-size:.72rem;opacity:.8}
.tab[aria-selected="true"]{background:var(--navy);color:#fff}
.day{margin-bottom:24px}
.js .day[hidden]{display:none}
.day h3{display:none}
.no-js-label{margin-bottom:.4em}
.js .no-js-label{display:none}
.slots{list-style:none;padding:0;margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.slots li{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:13px 18px;border-bottom:1px solid var(--line);align-items:baseline}
.slots li:last-child{border-bottom:0}
.slots time{font-family:var(--display);font-weight:500;color:var(--navy);letter-spacing:.03em;white-space:nowrap}
.slots .what{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline}
.slots .what small{color:var(--muted);font-size:.93rem;flex-basis:100%}
.tag{font-family:var(--display);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:2px 9px;border-radius:999px;color:#fff;background:var(--navy);align-self:center}
.tag.keynote{background:var(--red)}
.tag.course{background:var(--royal)}
.tag.poster{background:var(--orange)}
.tag.break{background:#8a96b3}
.tag.social{background:#8e3fbf}
.tag.meet{background:#0f8f6d}
.slots li.break .what b{font-weight:600;color:var(--muted)}

/* course/speaker cards */
.course-card{background:#fff;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden}
.course-card header{padding:18px 26px;color:#fff;background:linear-gradient(120deg,var(--navy),var(--royal))}
.course-card.opt header{background:linear-gradient(120deg,var(--red),var(--orange))}
.course-card header span{font-family:var(--display);letter-spacing:.12em;text-transform:uppercase;font-size:.85rem;opacity:.9}
.course-card header h3{margin:2px 0 0;color:#fff;font-size:1.5rem}
.course-card .body{padding:24px 26px}
.course-card dl{margin:0}
.course-card dt{font-family:var(--display);letter-spacing:.07em;text-transform:uppercase;font-size:.82rem;color:var(--red);margin-top:14px}
.course-card dd{margin:2px 0 0}
.units{counter-reset:u;list-style:none;padding:0;margin:6px 0 0}
.units li{counter-increment:u;padding:4px 0 4px 38px;position:relative}
.units li::before{content:counter(u);position:absolute;left:0;top:5px;width:26px;height:26px;border-radius:50%;background:var(--bg-soft);border:1.5px solid var(--royal);color:var(--navy);font:600 .85rem/23px var(--display);text-align:center}
.keynotes{display:grid;gap:16px}
.keynote-item{display:grid;grid-template-columns:96px 1fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;align-items:start}
.keynote-item .num{font-family:var(--display);color:var(--red);line-height:1;text-align:center}
.keynote-item .num span{display:block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.keynote-item .num b{font-size:2.8rem}
.keynote-item h3{margin:0 0 4px;font-size:1.25rem}
.keynote-item p{margin:0;color:var(--muted);font-size:1rem}
.keynote-item .tbd{display:inline-block;background:var(--bg-warm);border:1px dashed var(--amber);border-radius:6px;padding:0 8px;color:#8a5a00;font-size:.95rem}

/* contact */
.contact-card a{word-break:break-all}
.contact-card .role{font-family:var(--display);color:var(--red);letter-spacing:.08em;text-transform:uppercase;font-size:.85rem}

/* footer */
.site-footer{background:var(--deep);color:#d6e3ff;font-size:.98rem}
.site-footer a{color:#fff}
.site-footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:36px;padding:48px 0 32px}
.site-footer h4{color:var(--yellow);font-size:1rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:.8em}
.logo-panel{background:#fff;border-radius:var(--radius);padding:16px;max-width:360px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{padding:3px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding:16px 0;font-size:.88rem;color:#aebfe8}
.footer-bottom .wrap{display:block;padding:0}

/* responsive */
@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;padding:44px 0 52px}
  .hero-art{order:-1}
  .hero-art img{width:min(60%,260px)}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .site-footer .wrap{grid-template-columns:1fr 1fr}
  .site-footer .wrap>div:first-child{grid-column:1/-1}
}
@media (max-width:900px){
  .menu-btn{display:block}
  .lang{order:3}
  nav.main{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);margin:0;display:none;box-shadow:0 12px 24px rgba(14,41,125,.12)}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;padding:8px 16px 14px}
  nav.main a[aria-current="page"]{box-shadow:inset 4px 0 0 var(--red);border-radius:8px}
  .site-header .wrap{position:relative}
  .brand small{display:none}
}
@media (max-width:640px){
  body{font-size:17px}
  section{padding:46px 0}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .slots li{grid-template-columns:1fr;gap:2px}
  .keynote-item{grid-template-columns:1fr;gap:6px}
  .keynote-item .num{text-align:left}
  .keynote-item .num span,.keynote-item .num b{display:inline;margin-right:8px}
  .keynote-item .num b{font-size:1.7rem}
  .site-footer .wrap{grid-template-columns:1fr}
  .countdown div{min-width:62px}
  .brand b{font-size:1.1rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.hero-art img{animation:none}.btn{transition:none}
}
@media print{
  .site-header,.hero-art,.menu-btn,.tabs{display:none}
  .js .day[hidden]{display:block}
  section{padding:20px 0}
}
.tag.visit{background:#0f8f6d}