/* ============================================================
   SABMEI - Sociedad Argentina BioMédica Integral
   Hoja de estilos principal
   ============================================================ */

:root{
  --navy:#0f5570;
  --teal:#15627e;
  --blue:#2e86c1;
  --sky:#56b2e0;
  --gold:#ab9c72;
  --ink:#2b2b2b;
  --muted:#5b6b73;
  --bg:#ffffff;
  --bg-soft:#eef0f1;
  --bg-soft2:#f6f7f8;
  --line:#dfe4e7;
  --shadow:0 10px 30px rgba(15,85,112,.10);
  --shadow-sm:0 4px 14px rgba(0,0,0,.08);
  --serif:"Times New Roman",Times,Georgia,serif;
  --sans:Arial,Helvetica,"Segoe UI",sans-serif;
  --maxw:1180px;
  --radius:14px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.15;margin:0 0 .4em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--soft{background:var(--bg-soft2)}
.center{text-align:center}

/* ---------- Section titles ---------- */
.section-title{
  font-size:clamp(2rem,5vw,3.4rem);
  letter-spacing:.5px;
  text-align:center;
  color:#000;
  margin-bottom:.6em;
}
.section-kicker{
  font-family:var(--serif);
  font-size:clamp(1.4rem,3vw,2rem);
  color:var(--navy);
  text-align:center;
}
.lead{font-size:1.12rem;color:var(--muted);max-width:780px;margin:0 auto 1em}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  padding:13px 30px;
  border-radius:40px;
  font-family:var(--sans);
  font-weight:700;
  font-size:.95rem;
  letter-spacing:.5px;
  cursor:pointer;
  border:2px solid var(--teal);
  transition:.25s ease;
}
.btn--primary{background:var(--teal);color:#fff}
.btn--primary:hover{background:var(--navy);border-color:var(--navy)}
.btn--ghost{background:transparent;color:var(--teal)}
.btn--ghost:hover{background:var(--teal);color:#fff}
.btn--light{background:#fff;color:var(--teal);border-color:#fff}
.btn--light:hover{background:transparent;color:#fff;border-color:#fff}

/* ---------- Top bar ---------- */
.topbar{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  font-size:.8rem;
}
.topbar .container{display:flex;justify-content:flex-end;align-items:center;gap:18px;height:38px}
.topbar a{display:inline-flex;align-items:center;gap:7px;color:var(--muted)}
.topbar a:hover{color:var(--teal)}
.topbar svg{width:16px;height:16px}

/* ---------- Header / Nav ---------- */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:92px}
.brand img{height:62px;width:auto}
.nav-links{display:flex;align-items:center;gap:34px;list-style:none;margin:0;padding:0}
.nav-links a{
  font-family:var(--sans);
  font-size:.98rem;
  color:#1d2a30;
  letter-spacing:.3px;
  padding:6px 2px;
  position:relative;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;transition:.25s;
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--teal);font-weight:700}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:26px;height:3px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;background:#eaf2f7;overflow:hidden}
.hero img{width:100%;height:auto;display:block}
.hero__arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:54px;height:54px;border-radius:50%;
  background:rgba(255,255,255,.65);
  display:flex;align-items:center;justify-content:center;
  color:var(--navy);font-size:1.6rem;line-height:1;cursor:pointer;border:0;
  box-shadow:var(--shadow-sm);transition:.25s;user-select:none;
}
.hero__arrow:hover{background:#fff}
.hero__arrow--prev{left:18px}
.hero__arrow--next{right:18px}

/* ---------- Eventos (home band) ---------- */
.event-band{position:relative}
.event-band__img{width:100%;height:420px;object-fit:cover;object-position:center 35%}
.event-band__overlay{
  background:var(--bg-soft);
  text-align:center;
  padding:48px 24px 60px;
}
.event-band__kicker{font-family:var(--serif);font-size:1.5rem;color:var(--navy);margin-bottom:.3em}
.event-band__title{
  font-family:var(--serif);font-weight:700;color:#26333a;
  font-size:clamp(1.5rem,3.4vw,2.4rem);max-width:920px;margin:0 auto .2em;text-transform:uppercase;
}
.event-band__date{color:var(--muted);font-size:1.05rem;margin-bottom:1.4em}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gallery figure{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);background:#000}
.gallery img{width:100%;height:360px;object-fit:cover;transition:.5s}
.gallery figure:hover img{transform:scale(1.05)}

/* ---------- Referentes marquee ---------- */
.referentes{background:#fff;padding:64px 0 80px;overflow:hidden}
.marquee{position:relative;overflow:hidden;margin-top:36px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;gap:60px;width:max-content;animation:scroll 45s linear infinite}
.referentes:hover .marquee__track{animation-play-state:paused}
.marquee__track img{height:90px;width:auto;object-fit:contain;filter:grayscale(15%);opacity:.92;transition:.3s}
.marquee__track img:hover{filter:none;opacity:1;transform:scale(1.06)}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- Footer ---------- */
.footer{background:var(--bg-soft);padding:60px 0 30px}
.footer__logo{display:block;max-width:430px;margin:0 auto 30px}
.footer hr{border:0;border-top:1px solid #cfd6da;margin:30px 0}
.footer__row{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap}
.footer__contact a{display:block;color:#37474f;margin-bottom:6px}
.footer__contact a:hover{color:var(--teal)}
.footer__social{display:flex;gap:16px}
.footer__social a{
  width:42px;height:42px;border-radius:50%;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--teal);
  box-shadow:var(--shadow-sm);transition:.25s;
}
.footer__social a:hover{background:var(--teal);color:#fff;transform:translateY(-3px)}
.footer__social svg{width:20px;height:20px}
.footer__copy{text-align:right;color:#7a8a91;font-size:.85rem;margin-top:18px}

/* ---------- WhatsApp float ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:58px;height:58px;border-radius:50%;background:#25d366;
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 8px 24px rgba(37,211,102,.45);transition:.25s;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px}

/* ---------- Page hero (interior pages) ---------- */
.page-hero{
  background:linear-gradient(120deg,var(--navy),var(--teal));
  color:#fff;text-align:center;padding:70px 24px;
}
.page-hero h1{color:#fff;font-size:clamp(2rem,5vw,3.2rem)}
.page-hero p{color:#dceaf1;max-width:720px;margin:0 auto;font-size:1.1rem}

/* ---------- Cards / content ---------- */
.prose{max-width:880px;margin:0 auto}
.prose h3{color:var(--navy);font-size:1.6rem;margin-top:1.4em}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:40px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow-sm);
}
.card h3{color:var(--navy);font-size:1.3rem;margin-bottom:.3em}
.card .num{font-family:var(--serif);font-size:2.4rem;color:var(--gold);line-height:1}

/* ---------- Committee ---------- */
.committee-group{margin-top:48px}
.committee-group h3{
  text-align:center;color:var(--navy);font-size:1.7rem;
  padding-bottom:.3em;border-bottom:2px solid var(--gold);display:inline-block;
}
.committee-head{text-align:center;margin-bottom:30px}
.members{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.member{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow-sm);transition:.25s;
}
.member:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.member .avatar{
  width:74px;height:74px;border-radius:50%;margin-bottom:14px;
  background:linear-gradient(135deg,var(--blue),var(--navy));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:1.5rem;font-weight:700;
}
.member h4{font-family:var(--sans);font-size:1.1rem;color:var(--navy);margin-bottom:2px}
.member .role{color:var(--gold);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}
.member ul{margin:0;padding-left:18px;color:var(--muted);font-size:.9rem}
.member ul li{margin-bottom:4px}

/* ---------- Asociarse ---------- */
.price-card{
  max-width:560px;margin:0 auto;background:#fff;border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;border:1px solid var(--line);text-align:center;
}
.price-card__head{background:linear-gradient(120deg,var(--navy),var(--teal));color:#fff;padding:34px 24px}
.price-card__amount{font-family:var(--serif);font-size:3.4rem;line-height:1}
.price-card__body{padding:34px 30px}
.steps{max-width:760px;margin:48px auto 0;display:grid;gap:18px}
.step{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-sm)}
.step .n{flex:0 0 42px;height:42px;border-radius:50%;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--serif);font-size:1.3rem}

/* ---------- Eventos page ---------- */
.event-card{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;background:#fff;
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:34px;border:1px solid var(--line);
}
.event-card.featured{grid-template-columns:1fr;text-align:center}
.event-card__img{height:100%;min-height:260px;object-fit:cover;width:100%}
.event-card__body{padding:34px 38px;display:flex;flex-direction:column;justify-content:center}
.event-card__tag{display:inline-block;background:var(--gold);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;padding:5px 14px;border-radius:30px;margin-bottom:14px;align-self:flex-start}
.event-card.featured .event-card__tag{align-self:center}
.event-card__body h3{color:var(--navy);font-size:1.5rem}
.event-card__date{color:var(--muted);margin-bottom:18px}

/* ---------- Congreso page ---------- */
.congress-hero{position:relative;background:linear-gradient(120deg,#06283b,#0f5570);color:#fff;text-align:center;padding:80px 24px 90px;overflow:hidden}
.congress-hero h1{color:#fff;font-size:clamp(1.8rem,5vw,3.2rem);max-width:1000px;margin:0 auto .3em}
.congress-hero .sub{font-size:1.2rem;color:var(--sky);letter-spacing:1px}
.countdown{display:flex;gap:18px;justify-content:center;margin:36px 0 30px;flex-wrap:wrap}
.countdown .box{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:12px;padding:16px 22px;min-width:92px}
.countdown .box b{display:block;font-family:var(--serif);font-size:2.4rem;line-height:1}
.countdown .box span{font-size:.78rem;text-transform:uppercase;letter-spacing:1px;color:#cfe6f3}
.tickets{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:880px;margin:0 auto}
.ticket{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);text-align:center}
.ticket h3{color:var(--navy)}
.ticket .when{color:var(--muted);margin-bottom:18px}
.speakers-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:36px}
.speaker{text-align:center}
.speaker .ph{width:130px;height:130px;border-radius:50%;background:linear-gradient(135deg,var(--sky),var(--navy));color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:1.5rem;margin:0 auto 12px}
.speaker p{font-size:.86rem;margin:0;color:var(--ink);font-weight:700}
.program-row{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:10px;padding:18px 22px;margin-bottom:14px;box-shadow:var(--shadow-sm)}
.program-row .day{font-family:var(--serif);font-weight:700;color:var(--teal);min-width:170px}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .nav-links{
    position:fixed;inset:0 0 0 auto;width:min(80vw,320px);height:100vh;
    flex-direction:column;align-items:flex-start;gap:6px;
    background:#fff;padding:100px 32px;box-shadow:-12px 0 40px rgba(0,0,0,.12);
    transform:translateX(100%);transition:.35s;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:1.15rem;padding:10px 0;width:100%}
  .nav-toggle{display:block;z-index:60}
  .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .feature-grid,.members,.gallery,.tickets{grid-template-columns:1fr}
  .speakers-grid{grid-template-columns:repeat(3,1fr)}
  .event-card{grid-template-columns:1fr}
  .footer__row{flex-direction:column;align-items:center;text-align:center}
  .footer__copy{text-align:center}
}
@media(max-width:560px){
  .section{padding:52px 0}
  .members{grid-template-columns:1fr}
  .speakers-grid{grid-template-columns:repeat(2,1fr)}
  .brand img{height:50px}
  .nav{height:76px}
}