/* SCiChEB — estilo basado en el II Congreso Nacional de Estudios en Bienestar */
:root {
  --background: #f8faf5;
  --foreground: #16382d;
  --green: #155b43;
  --deep: #0b3327;
  --pale: #dcebdc;
  --line: #b8cbbd;
  --muted: #64816d;
  --soft: #779e7e;
  --white: #fff;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Arial, Helvetica, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--background); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body { margin: 0; background: var(--background); color: var(--foreground); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; top: 10px; background: var(--deep); color: var(--white); padding: 10px 14px; z-index: 10; font-size: 12px; }
.skip:focus { left: 10px; }

/* Header */
.site-header { height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 0 5vw; border-bottom: 1px solid var(--line); background: var(--background); position: sticky; top: 0; z-index: 5; }
.brand img { width: 150px; height: auto; }
.site-nav { display: flex; gap: 28px; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.site-nav a { padding: 6px 0; border-bottom: 1px solid transparent; }
.site-nav a:hover { color: var(--soft); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--green); color: var(--green); }
.header-cta { border-bottom: 1px solid var(--green); padding-bottom: 5px; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; white-space: nowrap; }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--foreground); font: 11px var(--sans); text-transform: uppercase; letter-spacing: .1em; padding: 10px 14px; cursor: pointer; }

/* Type */
.eyebrow, .section-kicker { color: var(--green); text-transform: uppercase; letter-spacing: .16em; font-size: 10px; font-weight: 700; margin: 0; }
.light { color: var(--pale); }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; }
h1, h2 { letter-spacing: -.045em; line-height: .94; }
h1 em, h2 em { color: var(--green); font-style: italic; }
.on-green h2 em { color: var(--pale); }

/* Buttons */
.button { display: inline-flex; gap: 35px; align-items: center; padding: 16px 20px; margin-top: 26px; font-size: 11px; text-transform: uppercase; letter-spacing: .11em; transition: transform .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-dark { color: var(--white); background: var(--deep); }
.button-light { color: var(--deep); background: var(--white); }

/* Home hero */
.hero { min-height: 640px; padding: 90px 10vw 75px 12vw; display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: center; position: relative; overflow: hidden; background: var(--pale); }
.hero:after { content: ''; position: absolute; right: -7vw; bottom: -12vw; width: 47vw; height: 47vw; border-radius: 50%; border: 1px solid #a9c4ad; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; max-width: 720px; }
.hero h1 { font-size: clamp(52px, 6.6vw, 100px); margin: 27px 0 30px; }
.hero-intro { max-width: 430px; line-height: 1.6; font-size: 15px; margin: 0; }
.hero-side { justify-self: end; width: 260px; position: relative; z-index: 1; }
.side-label { display: block; text-transform: uppercase; font-size: 10px; letter-spacing: .15em; }
.hero-side strong { display: block; font: 400 95px/1 var(--serif); letter-spacing: -.08em; margin: 17px 0 3px; }
.rule { border-top: 1px solid var(--green); margin: 18px 0; }
.hero-side p { font: italic 18px/1.35 var(--serif); margin: 0; }
.hero-note { position: absolute; bottom: 32px; left: 5vw; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; writing-mode: vertical-rl; transform: rotate(180deg); }

/* Inner page hero */
.page-hero { background: var(--pale); padding: 100px 12vw 80px; position: relative; overflow: hidden; }
.page-hero:after { content: ''; position: absolute; right: -10vw; top: -20vw; width: 40vw; height: 40vw; border-radius: 50%; border: 1px solid #a9c4ad; pointer-events: none; }
.page-hero h1 { font-size: clamp(48px, 6vw, 88px); margin: 26px 0 26px; max-width: 900px; position: relative; z-index: 1; }
.page-hero p { max-width: 520px; line-height: 1.65; font-size: 15px; margin: 0; position: relative; z-index: 1; }

/* Sections */
.section-wrap { max-width: 1240px; margin: auto; padding: 110px 5vw; }
.on-green { color: var(--white); background: var(--green); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; margin-top: 65px; align-items: start; }
.split h2, .heading-row h2, .register-card h2 { margin: 0; font-size: clamp(42px, 5.2vw, 72px); }
.prose p { margin: 0 0 22px; max-width: 540px; line-height: 1.78; font-size: 15px; }
.prose strong { color: var(--green); font-weight: 700; }
.on-green .prose p, .on-green p { color: #d7e6d8; }
.text-link { display: inline-flex; gap: 14px; border-bottom: 1px solid var(--green); padding-bottom: 5px; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; margin-top: 8px; }
.heading-row { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin: 65px 0 60px; }
.heading-row p { max-width: 330px; line-height: 1.6; font-size: 14px; margin: 0; }

/* Congreso feature */
.congress-feature { display: grid; grid-template-columns: 1.2fr 1fr; gap: 10vw; align-items: end; }
.congress-feature h2 { margin: 55px 0 22px; font-size: clamp(42px, 5.2vw, 72px); }
.congress-feature p { max-width: 420px; line-height: 1.6; font-size: 14px; }
.congress-date { border-top: 1px solid #5f8c74; padding-top: 22px; }
.congress-date strong { display: block; font: 400 clamp(70px, 9vw, 120px)/1 var(--serif); letter-spacing: -.08em; }
.congress-date span { display: block; text-transform: uppercase; font-size: 10px; letter-spacing: .15em; margin-top: 12px; color: var(--pale); }
.congress-date em { display: block; font: italic 18px/1.35 var(--serif); margin-top: 22px; color: var(--white); }

/* Photo */
.photo { position: relative; background: #a9c4ad; overflow: hidden; }
.photo img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.08) brightness(1.04); mix-blend-mode: multiply; }
.photo-tall { aspect-ratio: 4 / 5; }
.photo-wide { aspect-ratio: 16 / 7; margin-top: 70px; }

/* Research grid */
.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.research-item { min-height: 210px; padding: 22px 24px 26px 0; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.research-item:nth-child(3n+2), .research-item:nth-child(3n+3) { padding-left: 24px; }
.research-item:nth-child(3n) { border-right: 0; }
.research-item span { color: var(--green); font: italic 16px var(--serif); }
.research-item h3 { font-size: 24px; line-height: 1.15; margin: 22px 0 12px; }
.research-item p { color: var(--muted); font-size: 13px; line-height: 1.55; margin: 0; max-width: 300px; }

/* Link list */
.link-list a { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); font: 400 21px var(--serif); }
.link-list a:first-child { border-top: 1px solid var(--line); }
.link-list a:hover { color: var(--green); }
.link-list small { font: 11px var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); white-space: nowrap; }
.on-green .link-list a { border-color: #5f8c74; }
.on-green .link-list small { color: var(--pale); }

/* Archive card */
.register-card { background: var(--pale); padding: 65px 6vw; display: grid; grid-template-columns: 1.3fr 1fr; gap: 7vw; align-items: center; }
.register-card .prose p { max-width: 420px; font-size: 14px; }
.archive-poster { display: block; max-width: 290px; justify-self: end; box-shadow: 0 30px 60px -30px rgba(11, 51, 39, .45); transition: transform .2s ease; }
.archive-poster:hover { transform: translateY(-3px); }

/* Mission/vision */
.pair { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #5f8c74; margin-top: 60px; }
.pair article { padding: 30px 40px 10px 0; }
.pair article + article { border-left: 1px solid #5f8c74; padding-left: 40px; }
.pair h3 { font-size: 30px; margin: 18px 0 16px; }
.pair p { line-height: 1.75; font-size: 15px; margin: 0; max-width: 470px; }

/* Investigación */
.line-list { border-top: 1px solid var(--green); }
.line { display: grid; grid-template-columns: 90px 1fr; gap: 0 40px; padding: 50px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.line-num { font: italic 22px var(--serif); color: var(--green); }
.line h2 { font-size: clamp(32px, 3.6vw, 48px); letter-spacing: -.03em; line-height: 1.02; margin: 0 0 30px; max-width: 760px; }
.line dl { display: grid; grid-template-columns: 200px 1fr; gap: 16px 30px; margin: 0; max-width: 900px; }
.line dt { text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 700; color: var(--green); padding-top: 4px; }
.line dd { margin: 0; line-height: 1.65; font-size: 15px; }
.line dd cite { font-style: italic; font-family: var(--serif); font-size: 16px; }

/* Académicos */
.uni { display: grid; grid-template-columns: 320px 1fr; gap: 40px; padding: 46px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.uni:first-child { border-top: 1px solid var(--green); }
.uni h2 { font-size: clamp(28px, 3vw, 38px); letter-spacing: -.03em; line-height: 1.05; margin: 0; }
.uni h2 small { display: block; font: 10px var(--sans); text-transform: uppercase; letter-spacing: .15em; color: var(--muted); margin-top: 14px; }
.people { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 30px 30px; }
.person h3 { font-size: 22px; margin: 0 0 12px; line-height: 1.2; }
.person ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.person li a { display: inline-block; border: 1px solid var(--line); padding: 7px 11px; font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.person li a:hover { background: var(--green); border-color: var(--green); color: var(--white); }

/* Contact + footer */
.contact-band { display: flex; align-items: end; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.contact-band h2 { margin: 22px 0 0; font-size: clamp(36px, 4.4vw, 60px); }
.contact-band a.mail { font: italic clamp(20px, 2.4vw, 30px) var(--serif); border-bottom: 1px solid var(--pale); padding-bottom: 6px; color: var(--white); }
footer { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 35px 5vw; border-top: 1px solid var(--line); text-transform: uppercase; font-size: 9px; letter-spacing: .1em; line-height: 1.6; }
footer p { margin: 0; }
footer img { width: 130px; height: auto; }
footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
footer nav a:hover { color: var(--soft); }

/* Responsive */
@media (max-width: 1080px) {
  .site-nav { gap: 18px; }
  .header-cta { display: none; }
}
@media (max-width: 860px) {
  .site-header { height: 70px; }
  .brand img { width: 128px; }
  .menu-toggle { display: block; }
  .site-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--background); border-bottom: 1px solid var(--line); padding: 8px 8vw 20px; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
  .site-nav a[aria-current="page"] { border-bottom-color: var(--line); }
  .hero { min-height: 0; display: block; padding: 70px 8vw 80px; }
  .hero h1 { font-size: 54px; }
  .hero-side { margin-top: 60px; justify-self: start; }
  .hero-side strong { font-size: 75px; }
  .hero-note { display: none; }
  .page-hero { padding: 70px 8vw 60px; }
  .section-wrap { padding: 75px 8vw; }
  .split, .congress-feature, .register-card, .pair { grid-template-columns: 1fr; gap: 45px; margin-top: 45px; }
  .pair article { padding-right: 0; }
  .pair article + article { border-left: 0; border-top: 1px solid #5f8c74; padding-left: 0; }
  .heading-row { display: block; margin: 45px 0; }
  .heading-row p { margin-top: 25px; }
  .research-grid { grid-template-columns: 1fr; }
  .research-item, .research-item:nth-child(3n+2), .research-item:nth-child(3n+3) { padding: 22px 0; border-right: 0; min-height: 0; }
  .register-card { padding: 45px 8vw; }
  .archive-poster { justify-self: start; max-width: 240px; }
  .line { grid-template-columns: 1fr; padding: 40px 0; }
  .line-num { margin-bottom: 14px; }
  .line dl { grid-template-columns: 1fr; gap: 6px; }
  .line dd { margin-bottom: 14px; }
  .uni { grid-template-columns: 1fr; gap: 26px; }
  .photo-wide { aspect-ratio: 4 / 3; }
  footer { display: block; }
  footer > * + * { margin-top: 22px; }
}