/* Alberto Creative landing */

:root {
  --white: #ffffff;
  --deep-blue: #000014;

  --bg: var(--white);
  --fg: var(--deep-blue);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--deep-blue);
    --fg: var(--white);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: Arial, Helvetica, sans-serif;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 24px;
}

.hero {
  width: 100%;
  max-width: 920px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.logo-link {
  display: inline-flex;
  line-height: 0;
}

.logo {
  display: block;
  width: min(690px, 76vw);
  height: auto;
}

/* Modo oscuro: logo e iconos blancos. Modo claro: SVG originales. */
@media (prefers-color-scheme: dark) {
  .logo,
  .social-link img {
    filter: brightness(0) invert(1);
  }
}

.subtitle {
  margin: 46px 0 70px;
  font-size: clamp(22px, 2.1vw, 36px);
  line-height: 1.22;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.portfolio-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 235px;
  min-height: 62px;
  padding: 12px 32px;
  border: 2px solid var(--fg);
  border-radius: 999px;
  background: transparent;
  color: var(--fg);
  text-decoration: none;
  font-size: clamp(18px, 1.55vw, 27px);
  line-height: 1;
  font-weight: 700;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

/* Modo claro: botón se rellena azul profundo y texto blanco */
@media (prefers-color-scheme: light) {
  .portfolio-button:hover,
  .portfolio-button:focus-visible,
  .portfolio-button:active {
    background: #000014;
    color: #ffffff;
    transform: translateY(-1px);
  }
}

/* Modo oscuro: botón se rellena blanco y texto azul profundo, nunca negro puro */
@media (prefers-color-scheme: dark) {
  .portfolio-button:hover,
  .portfolio-button:focus-visible,
  .portfolio-button:active {
    background: #ffffff;
    color: #000014;
    transform: translateY(-1px);
  }
}

.socials {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(42px, 4vw, 54px);
  margin: 73px 0 66px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  background: transparent;
  border: 0;
  border-radius: 0;
  text-decoration: none;
  transition: transform 180ms ease, opacity 180ms ease;
}

.social-link img {
  display: block;
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.social-link:hover,
.social-link:focus-visible {
  transform: translateY(-2px);
  opacity: 0.78;
}

.contact {
  display: flex;
  flex-direction: column;
  gap: 30px;
  align-items: center;
}

.contact a {
  color: var(--fg);
  text-decoration: none;
  font-size: clamp(18px, 1.65vw, 29px);
  line-height: 1;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.contact a:hover,
.contact a:focus-visible {
  text-decoration: underline;
}

.portfolio-button:focus-visible,
.social-link:focus-visible,
.contact a:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 7px;
}

@media (max-width: 700px) {
  .page {
    place-items: start center;
    padding: 70px 18px 40px;
  }

  .hero {
    max-width: 390px;
  }

  .logo {
    width: min(300px, 88vw);
  }

  .subtitle {
    max-width: 300px;
    margin: 24px 0 38px;
    font-size: 20px;
    line-height: 1.38;
    letter-spacing: -0.02em;
  }

  .portfolio-button {
    min-width: 138px;
    min-height: 37px;
    padding: 8px 18px;
    border-width: 1.5px;
    font-size: 16px;
  }

  .socials {
    gap: 34px;
    margin: 44px 0 41px;
  }

  .social-link,
  .social-link img {
    width: 33px;
    height: 33px;
  }

  .contact {
    gap: 18px;
  }

  .contact a {
    font-size: 16px;
    letter-spacing: -0.02em;
  }
}

@media (max-width: 360px) {
  .logo {
    width: 285px;
  }

  .socials {
    gap: 28px;
  }
}