/* =========================================================
   DTU Float Forward — hoja de estilos única
   Todo el diseño del sitio vive aquí. Los colores y medidas
   principales están en :root; cambiarlos ahí afecta a todo.
   ========================================================= */

:root {
  --red: #B90000;        /* rojo del logo de Float Forward */
  --red-deep: #990000;   /* rojo del logo de DTU, para degradados */
  --sea: #0D2B45;        /* azul marino del mar, para secciones oscuras */
  --sea-soft: #EAF1F6;   /* azul muy claro de fondo */
  --ink: #16161A;        /* texto y fondos oscuros */
  --mist: #F6F5F4;       /* gris muy claro de fondo */
  --grey: #6E7076;       /* texto secundario */
  --line: rgba(0, 0, 0, 0.1);

  --wrap: 1140px;        /* ancho máximo del contenido */
  --radius: 10px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Barlow", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--red); }

h1, h2, h3 { line-height: 1.15; margin: 0 0 0.5em; }
h1 { font-family: "Archivo Black", system-ui, sans-serif; font-size: clamp(2.4rem, 6vw, 4.2rem); letter-spacing: 0.01em; }
h2 { font-family: "Archivo Black", system-ui, sans-serif; font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1.1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--mist { background: var(--mist); }
.section--ink { background: var(--ink); color: #fff; }
.section--ink h2 { color: #fff; }

/* Secciones de color. Sobre fondo oscuro el texto pasa a blanco. */
.section--red { background: linear-gradient(135deg, var(--red), var(--red-deep)); color: #fff; }
.section--sea { background: var(--sea); color: #fff; }
.section--sea-soft { background: var(--sea-soft); }
.section--red h2, .section--sea h2, .section--red h3, .section--sea h3 { color: #fff; }
.section--red .lead, .section--sea .lead,
.section--red .muted, .section--sea .muted { color: rgba(255,255,255,0.85); }
.section--red a:not(.btn), .section--sea a:not(.btn) { color: #fff; }
.section--sea .eyebrow { color: #FF8A80; }
.section--red .eyebrow { color: rgba(255,255,255,0.8); }
.section--red .stat { border-left-color: #fff; }
.section--red .stat__label, .section--sea .stat__label { color: rgba(255,255,255,0.85); }
.section--sea .card, .section--red .card { color: var(--ink); border: 0; }
/* Las tarjetas son blancas: dentro, el texto vuelve a sus colores normales */
.section--sea .card h3, .section--red .card h3 { color: var(--ink); }
.section--sea .card .muted, .section--red .card .muted { color: var(--grey); }

/* Botón blanco, para usar sobre fondo rojo */
.btn.btn--light { background: #fff; color: var(--red); }
.btn.btn--light:hover { background: var(--sea); color: #fff; }

/* Tira de fotos a todo el ancho */
.photo-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: clamp(32px, 5vw, 64px); }  /* espacio en blanco debajo */
.photo-strip img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
@media (max-width: 640px) {
  .photo-strip { grid-template-columns: 1fr 1fr; }
  .photo-strip img:first-child { grid-column: 1 / -1; aspect-ratio: 16 / 9; }
}

.lead { font-size: 1.15rem; color: var(--grey); max-width: 62ch; }
.muted { color: var(--grey); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}

.btn {
  display: inline-block;
  background: var(--red);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 999px;
  transition: background 0.2s;
}
.btn:hover { background: var(--red-deep); }
.btn--ghost { background: transparent; border: 1px solid rgba(255,255,255,0.5); }
.btn--ghost:hover { background: rgba(255,255,255,0.14); }

/* ---------------- Cabecera ---------------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
}
.logo {
  font-family: "Archivo Black", sans-serif;
  font-size: 1.05rem; letter-spacing: 0.02em;
  color: var(--ink); text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.logo img { height: 46px; width: auto; }

/* Logo de DTU, a la derecha de los enlaces */
.dtu-logo { display: flex; align-items: center; margin-left: 28px; padding-left: 28px; border-left: 1px solid var(--line); }
.dtu-logo img { height: 40px; width: auto; }

.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav a {
  color: var(--ink); text-decoration: none; font-weight: 500; font-size: 0.97rem;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.nav a:hover { border-bottom-color: var(--red); }
.nav a[aria-current="page"] { border-bottom-color: var(--red); color: var(--red); }

.nav-toggle {
  display: none; width: 42px; height: 42px;
  background: none; border: 1px solid var(--line); border-radius: 8px;
  cursor: pointer; font-size: 1.2rem; line-height: 1;
}

@media (max-width: 860px) {
  .nav-toggle { display: block; order: 3; margin-left: 16px; }
  .dtu-logo { margin-left: auto; padding-left: 0; border-left: 0; }
  .dtu-logo img { height: 34px; }
  .logo img { height: 40px; }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: clamp(420px, 68vh, 640px);
  display: flex; align-items: center;
  background: var(--ink);
  overflow: hidden;
}
.hero__img {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(8,20,28,0.6), rgba(8,20,28,0) 65%),  /* oscurece el lado del texto */
    linear-gradient(180deg, rgba(8,20,28,0.35), rgba(8,20,28,0.78));
}
.hero__content { position: relative; z-index: 2; color: #fff; padding: 72px 24px; }
.hero__content h1 { color: #fff; max-width: 16ch; }
.hero__content p { font-size: 1.2rem; max-width: 52ch; color: rgba(255,255,255,0.9); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

/* Hero más corto para páginas interiores */
.hero--page { min-height: clamp(300px, 42vh, 420px); }

/* Cabecera de Team: la foto de grupo ocupa todo el ancho y la altura crece
   con el ancho de la pantalla, con un tope de 600px. La foto se recorta
   por arriba y por abajo; center 45% centra la zona de las caras. */
.hero--team { min-height: clamp(360px, 36vw, 600px); align-items: flex-end; }
.hero--team .hero__img { background-image: var(--photo); background-size: cover; background-position: center 45%; }
/* Velo mucho más suave: solo oscurece la parte de abajo, donde va el texto */
.hero--team::after { background: linear-gradient(180deg, rgba(8,20,28,0) 45%, rgba(8,20,28,0.55)); }
.hero--team .hero__content { padding-top: 0; padding-bottom: 28px; }
.hero--team h1 { text-shadow: 0 2px 14px rgba(0,0,0,0.45); }

/* Cabecera con foto de Sponsors, News y Contact */
.page-hero .hero__content { width: 100%; }
.page-hero h2 { color: #fff; }
.page-hero .eyebrow { color: #FF8A80; }
.page-hero .lead { color: rgba(255,255,255,0.9); }

/* ---------------- Rejillas ---------------- */
.grid { display: grid; gap: 28px; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.card__body { padding: 24px; }
.card__img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; background: var(--mist); }

.stat { border-left: 3px solid var(--red); padding-left: 18px; }
.stat__num { font-family: "Archivo Black", sans-serif; font-size: 2.2rem; line-height: 1; }
.stat__label { color: var(--grey); font-size: 0.95rem; }

/* ---------------- Equipo ---------------- */
.season-switch {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  margin: 8px 0 6px;
}
.season-switch button {
  width: 44px; height: 44px; flex: 0 0 auto;
  border-radius: 50%; border: 1px solid rgba(255,255,255,0.5);
  background: transparent; color: #fff; font-size: 1.4rem; line-height: 1;
  cursor: pointer; transition: background 0.2s, border-color 0.2s;
}
.season-switch button:hover:not(:disabled) { background: var(--red); border-color: var(--red); }
.season-switch button:disabled { opacity: 0.25; cursor: default; }
.season-switch span { font-size: clamp(1.1rem, 3vw, 1.5rem); font-weight: 500; min-width: 9ch; }

.badge {
  display: inline-block; background: var(--red); color: #fff;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em;
  padding: 5px 14px; border-radius: 999px;
}

.dept + .dept { margin-top: 56px; }
.dept__head {
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--line); padding-bottom: 12px; margin-bottom: 24px;
}
.dept__bar { width: 6px; height: 22px; background: var(--red); border-radius: 3px; flex: 0 0 auto; }
.dept__head h3 { margin: 0; font-size: 1.25rem; }
.dept__desc { color: var(--grey); margin: -8px 0 24px; max-width: 70ch; }
/* Foto de grupo del departamento: tope de 640px porque las fotos son pequeñas */
.dept__photo { width: 100%; max-width: 640px; border-radius: 8px; margin-bottom: 24px; }

/* Foto + cuadro de texto a la derecha (campo "feature" en team.js) */
.dept__feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: start; }
.dept__feature .dept__photo { max-width: none; margin-bottom: 0; }
.dept__box {
  background: var(--sea-soft); border-left: 4px solid var(--red); border-radius: 8px;
  padding: 24px 26px; font-size: 0.97rem;
}
.dept__box h4 { font-family: "Archivo Black", sans-serif; font-size: 1.15rem; line-height: 1.25; margin: 0 0 12px; color: var(--red); }
.dept__box p { margin: 0; }
@media (max-width: 760px) { .dept__feature { grid-template-columns: 1fr; } }

/* ---------------- Patrocinadores ---------------- */
.tier + .tier { margin-top: 48px; }
.tier h3 { font-size: 0.82rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--grey); }
.logos {
  display: grid; align-items: center;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 32px;
  margin-top: 20px;
}
.logos a, .logos div { display: flex; align-items: center; justify-content: center; min-height: 72px; }
.logos img { max-height: 62px; width: auto; object-fit: contain; transition: transform 0.2s; }
.logos a:hover img { transform: scale(1.06); }   /* indica que el logo es un enlace */

/* ---------------- Tarjeta destacada con dos caras (portada) ---------------- */
.highlight { position: relative; background-size: cover; background-position: center; background-color: var(--sea); }
.highlight::before { content: ""; position: absolute; inset: 0; background: rgba(13,43,69,0.35); }
.highlight .wrap { position: relative; }

/* Las dos caras ocupan la misma celda; la de detrás está transparente */
.flip { display: grid; background: rgba(255,255,255,0.94); border-radius: var(--radius); outline: none; }
.flip__face {
  grid-area: 1 / 1; display: grid; gap: 32px; align-items: center;
  padding: clamp(20px, 4vw, 40px);
  transition: opacity 0.5s ease-out, visibility 0.5s;
}
.flip__front { grid-template-columns: 1fr 1.4fr; }
.flip__back { grid-template-columns: 0.6fr 1.4fr; opacity: 0; visibility: hidden; }
.flip:hover .flip__front, .flip:focus-within .flip__front { opacity: 0; visibility: hidden; }
.flip:hover .flip__back, .flip:focus-within .flip__back { opacity: 1; visibility: visible; }

.flip img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; background: var(--mist); }
.flip__front img { aspect-ratio: 16 / 10; }
.flip__back img { aspect-ratio: 4 / 5; }

.flip__intro { text-align: center; }
.flip__title { color: var(--red); text-transform: uppercase; font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 0.3em; }
.flip__sub { font-size: 1.25rem; }
.flip__stats { background: var(--red); color: #fff; padding: 18px 20px; border-radius: 4px; text-align: left; }
.flip__stats p { margin: 0; }
.flip__stats strong { font-family: "Archivo Black", sans-serif; font-size: 1.3rem; margin-right: 4px; }
.flip__hint { margin: 14px 0 0; font-size: 0.85rem; color: var(--grey); }
.flip__hint .on-touch { display: none; }
@media (hover: none) { .flip__hint .on-hover { display: none; } .flip__hint .on-touch { display: inline; } }

@media (max-width: 760px) {
  .flip__front, .flip__back { grid-template-columns: 1fr; }
  .flip__back img { display: none; }
}

/* ---------------- Noticias ---------------- */
.post__date { font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); font-weight: 600; }
.quote {
  border-left: 3px solid var(--red);
  padding-left: 22px; margin: 32px 0;
  font-size: 1.08rem;
}
.quote footer { font-size: 0.88rem; color: var(--grey); font-weight: 600; letter-spacing: 0.04em; }

/* ---------------- Contacto ---------------- */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; font: inherit;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--red); outline-offset: 1px; border-color: transparent; }
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-list strong { display: block; font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--grey); }
.contact-list a { color: var(--ink); text-decoration: none; font-weight: 500; }
.contact-list a:hover { color: var(--red); }

/* ---------------- Pie ---------------- */
/* Pie compacto, en el rojo del logo del equipo */
.footer { background: var(--red); color: rgba(255,255,255,0.85); padding: 32px 0 18px; font-size: 0.88rem; line-height: 1.5; }
.footer a { color: rgba(255,255,255,0.85); text-decoration: none; }
.footer a:hover { color: #fff; text-decoration: underline; }
/* space-between deja la última columna ("Follow") pegada a la derecha */
.footer__grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px 48px; }
.footer h4 { color: #fff; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 8px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 3px; }
.footer__bottom {
  margin-top: 22px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.25);
  font-size: 0.78rem; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}