/* ==========================================================================
   2027: El nuevo mapa de los negocios
   Colores tomados del PDF de la invitación.
   ========================================================================== */

:root {
  /* Colores */
  --color-navy: #0B1E49;              /* fondo del hero, nombres, textos y botón */
  --color-blue: #1F80D1;              /* "27", píldora, títulos pequeños, organización */
  --color-card: #F3F6FF;              /* tarjetas de expositores (= esquinas de las fotos) */
  --color-text-muted: #5F6679;        /* "Perspectiva…", etiquetas de fecha/hora/modalidad */
  --color-border: #D6DEEC;            /* cajas de patrocinadores */
  --color-divider: #E3E8EF;           /* líneas de fecha/hora/modalidad */
  --color-on-navy: #C7D5F8;           /* subtítulo sobre el azul marino */
  --color-on-navy-accent: #ABCEF4;    /* "Le invitan" */
  --color-white: #FFFFFF;

  /* Tipografía */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-black: 800;
  --tracking-year: -0.05em;
  --tracking-tight: -0.02em;
  --tracking-eyebrow: 0.16em;
  --tracking-invite: 0.2em;

  --text-eyebrow: 0.8125rem;
  --text-small: 0.9375rem;
  --text-body: 1.0625rem;
  --text-lead: 1.1875rem;
  --text-fact: 1.25rem;
  --text-subtitle: clamp(1.0625rem, 0.95rem + 0.6vw, 1.375rem);
  --text-tagline: clamp(1.0625rem, 0.95rem + 0.5vw, 1.25rem);
  --text-name: clamp(1.375rem, 1.2rem + 0.8vw, 1.625rem);
  --text-headline: clamp(2rem, 1.25rem + 3.4vw, 3rem);
  --text-year: clamp(5rem, 2.5rem + 13vw, 9.5rem);

  /* Medidas */
  --page-max: 48rem;
  --gutter: clamp(1rem, 5vw, 4rem);
  --radius-card: 1rem;
  --radius-box: 0.75rem;
  --radius-pill: 999px;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.5;
  color: var(--color-navy);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-blue);
}

a:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-blue);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  padding-block: clamp(1.25rem, 4vw, 2rem) clamp(3rem, 8vw, 4.5rem);
  color: var(--color-white);
  background: var(--color-navy) url("../img/waves.svg") center / cover no-repeat;
}

.hero__inner,
.content {
  width: min(100% - 2 * var(--gutter), var(--page-max));
  margin-inline: auto;
}

.hosts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.hosts__logos {
  display: flex;
  align-items: center;
  max-width: 100%;
  margin: 0;
  padding: 0.875rem clamp(1rem, 3vw, 1.75rem);
  list-style: none;
  background: var(--color-white);
  border-radius: var(--radius-card);
}

.hosts__logos li {
  min-width: 0;
}

.hosts__logos li + li {
  margin-left: clamp(0.75rem, 3vw, 1.5rem);
  padding-left: clamp(0.75rem, 3vw, 1.5rem);
  border-left: 1px solid var(--color-divider);
}

.hosts__logos img {
  display: block;
}

.hosts__invite {
  margin: 0;
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-invite);
  text-transform: uppercase;
  color: var(--color-on-navy-accent);
}

.hero__title {
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  font-weight: var(--weight-bold);
}

.hero__year {
  display: block;
  font-size: var(--text-year);
  font-weight: var(--weight-black);
  line-height: 0.95;
  letter-spacing: var(--tracking-year);
}

.hero__year-accent {
  color: var(--color-blue);
}

.hero__headline {
  display: block;
  margin-top: 0.4em;
  font-size: var(--text-headline);
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

.hero__subtitle {
  margin: 0.75rem 0 0;
  font-size: var(--text-subtitle);
  color: var(--color-on-navy);
}

.hero__tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 1.75rem 0 0;
  padding: 0.6rem 1.25rem;
  font-size: var(--text-tagline);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
  background: var(--color-blue);
  border-radius: var(--radius-pill);
}

.hero__tagline-icon {
  flex: none;
  width: 1.4em;
  height: auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

/* --------------------------------------------------------------------------
   Contenido
   -------------------------------------------------------------------------- */

.content {
  padding-block: clamp(2rem, 6vw, 3rem);
}

.content > section + section {
  margin-top: 2rem;
}

/* Expositores */

.speakers__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.speaker {
  height: 100%;
  padding: 1rem 1rem 1.5rem;
  text-align: center;
  background: var(--color-card);
  border-radius: var(--radius-card);
}

.speaker__photo {
  display: block;
  width: min(100%, 13.75rem);
  margin-inline: auto;
}

.speaker__name {
  margin: 0.75rem 0 0;
  font-size: var(--text-name);
  font-weight: var(--weight-bold);
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
}

.speaker__org {
  margin: 0.25rem 0 0;
  font-weight: var(--weight-semibold);
  color: var(--color-blue);
}

.speaker__topic {
  margin: 0.125rem 0 0;
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

/* Fecha, hora y modalidad */

.details__list {
  display: grid;
  margin: 0;
  border-block: 1px solid var(--color-divider);
}

.details__item {
  padding-block: 1.125rem;
}

.details__item + .details__item {
  border-top: 1px solid var(--color-divider);
}

.details dt {
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.details dd {
  margin: 0.375rem 0 0;
  font-size: var(--text-fact);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
  letter-spacing: var(--tracking-tight);
}

.details__calendar {
  display: inline-block;
  margin-top: 0.375rem;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  letter-spacing: normal;
}

@media (min-width: 40rem) {
  .details__list {
    grid-template-columns: 1.45fr 1fr 1fr;
  }

  .details__item + .details__item {
    padding-left: 1.5rem;
    border-top: 0;
    border-left: 1px solid var(--color-divider);
  }
}

/* Patrocinadores */

.sponsors__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 1.125rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sponsors__item {
  display: grid;
  place-items: center;
  min-height: 4.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-box);
}

/* Confirmación */

.rsvp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}

.rsvp__lead {
  margin: 0;
  font-size: var(--text-lead);
  font-weight: var(--weight-regular);
  line-height: 1.35;
}

.rsvp__lead strong {
  font-weight: var(--weight-bold);
}

.rsvp__note {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.375rem 0 0;
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-blue);
}

.rsvp__note::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  background: currentColor;
  border-radius: 50%;
}

.button {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: var(--text-lead);
  font-weight: var(--weight-semibold);
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  color: var(--color-white);
  background: var(--color-navy);
  border-radius: var(--radius-pill);
  transition: background-color 0.15s ease;
}

.button:hover {
  background: var(--color-blue);
}

@media (max-width: 30rem) {
  .button {
    flex: 1 1 100%;
  }
}