/* Kit Digital UdeC — mobile-first */

@font-face {
  font-family: Poppins;
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("./assets/fonts/poppins-variable.woff2") format("woff2");
}

@font-face {
  font-family: Roboto;
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("./assets/fonts/roboto-variable.woff2") format("woff2");
}

/* ── Tokens móvil (base) ── */
:root {
  --color-blue-50: #c7d5ed;
  --color-blue-500: #223c6a;
  --color-blue-700: #142440;
  --color-yellow-500: #ef9618;
  --color-gray-50: #f4f4f4;
  --color-gray-700: #565454;
  --color-gray-800: #2b2a2a;
  --color-white: #ffffff;
  --color-red-600: #ba152a;

  --spacing-8: 0.5rem;
  --spacing-12: 0.75rem;
  --spacing-16: 1rem;
  --spacing-20: 1.25rem;
  --spacing-24: 1.5rem;
  --spacing-28: 1.75rem;
  --spacing-32: 2rem;
  --spacing-40: 2.5rem;

  --spacing-container-padding: var(--spacing-16);
  --container-wide: 75rem;
  --focus: #5798dc;

  --font-titulo: Poppins, system-ui, sans-serif;
  --font-texto: Roboto, system-ui, sans-serif;

  /* Escala tipográfica móvil — kitdigital.udec.cl/diseno/tipografia */
  --text-4xl-size: 2rem;
  --text-4xl-line: 2.5rem;
  --text-base-size: 1rem;
  --text-base-line: 1.5rem;
  --text-s-size: 0.875rem;
  --text-s-line: 1.25rem;

  --header-logo-width: min(180px, 70vw);
  --header-logo-max-height: 2.75rem;
  --notice-radius: 12px;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  font-family: var(--font-texto);
  font-size: var(--text-base-size);
  line-height: var(--text-base-line);
  color: var(--color-gray-800);
  background: var(--color-gray-50);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-16);
  z-index: 1000;
  padding: var(--spacing-12) var(--spacing-16);
  background: var(--color-blue-500);
  color: var(--color-white);
  font-family: var(--font-titulo);
  font-weight: 500;
  text-decoration: none;
  border-radius: 0 0 8px 8px;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--spacing-container-padding);
}

/* ── Cabecera ── */
.site-header {
  flex-shrink: 0;
  background: var(--color-blue-500);
  color: var(--color-white);
}

.site-header__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-block: var(--spacing-16);
}

.site-header__brand {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  line-height: 0;
}

.site-header__logo {
  display: block;
  width: var(--header-logo-width);
  max-height: var(--header-logo-max-height);
  height: auto;
  margin-inline: auto;
  object-fit: contain;
}

/* ── Contenido principal ── */
.site-main {
  flex: 1;
  display: flex;
  align-items: flex-start;
  padding-block: var(--spacing-16);
}

.site-main > .container {
  width: 100%;
}

.notice {
  max-width: 40rem;
  margin-inline: auto;
  background: var(--color-white);
  border-radius: var(--notice-radius);
  box-shadow: 0 4px 20px rgba(20, 36, 64, 0.08);
  border: 1px solid rgba(34, 60, 106, 0.08);
  overflow: hidden;
}

.notice__top {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: calc(4px + var(--spacing-20)) var(--spacing-16) var(--spacing-20);
  background: var(--color-blue-50);
}

.notice__top-bar {
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--color-blue-500);
}

.notice__top-bar::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 28%;
  height: 100%;
  background: var(--color-yellow-500);
}

.notice__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-red-600);
  border: 2px solid rgba(34, 60, 106, 0.08);
  box-shadow: 0 6px 18px rgba(34, 60, 106, 0.1);
}

.notice__icon svg {
  width: 1.375rem;
  height: 1.375rem;
}

.notice__body {
  padding: var(--spacing-20) var(--spacing-16) var(--spacing-32);
  text-align: center;
}

.notice__title {
  margin: 0 0 var(--spacing-16);
  font-family: var(--font-titulo);
  font-size: var(--text-4xl-size);
  font-weight: 600;
  line-height: var(--text-4xl-line);
  color: var(--color-blue-500);
  letter-spacing: -0.01em;
}

.notice__lead {
  margin: 0;
  color: var(--color-gray-700);
  max-width: 36ch;
  margin-inline: auto;
}

/* ── Pie de página ── */
.site-footer {
  flex-shrink: 0;
  background: var(--color-blue-700);
  color: var(--color-white);
  padding-block: var(--spacing-24);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-8);
  text-align: center;
  font-size: var(--text-s-size);
  line-height: var(--text-s-line);
}

.site-footer__copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
}

.site-footer a {
  color: var(--color-white);
  font-family: var(--font-titulo);
  font-weight: 500;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.site-footer a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Tablet (≥768px) — kitdigital.udec.cl ── */
@media (min-width: 48rem) {
  :root {
    --spacing-container-padding: var(--spacing-32);
    --text-4xl-size: 2.75rem;
    --text-4xl-line: 3.25rem;
    --text-base-size: 1.125rem;
    --text-base-line: 1.625rem;
    --header-logo-width: min(200px, 50vw);
    --header-logo-max-height: 3.25rem;
    --notice-radius: 16px;
  }

  .site-header__inner {
    padding-block: var(--spacing-24);
  }

  .site-main {
    align-items: center;
    padding-block: var(--spacing-24);
  }

  .notice {
    box-shadow: 0 8px 32px rgba(20, 36, 64, 0.08);
  }

  .notice__top {
    padding: calc(4px + var(--spacing-28)) var(--spacing-32) var(--spacing-28);
  }

  .notice__icon {
    width: 4rem;
    height: 4rem;
  }

  .notice__icon svg {
    width: 1.5rem;
    height: 1.5rem;
  }

  .notice__body {
    padding: var(--spacing-28) var(--spacing-40) var(--spacing-40);
  }

  .notice__title {
    margin-bottom: var(--spacing-20);
  }

  .notice__lead {
    max-width: 40ch;
  }

  .site-footer {
    padding-block: var(--spacing-32);
  }
}

/* ── Escritorio (≥1024px) ── */
@media (min-width: 64rem) {
  :root {
    --text-4xl-size: 3rem;
    --text-4xl-line: 3.5rem;
  }

  .site-header {
    background: var(--color-blue-700);
  }
}

/* ── Escritorio alto: vista sin scroll de página ── */
@media (min-width: 48rem) and (min-height: 40rem) {
  body {
    height: 100dvh;
    overflow: hidden;
  }

  .site-main {
    min-height: 0;
    overflow-y: auto;
  }
}