/* ==========================================================================
   PORTAFOLIO · Xavier Lopez — Sección Hero
   Mobile first. Solo 4 tipos de pantalla:
     1. Móvil     (base)       320px – 767px
     2. Tablet    (≥ 48rem)    768px – 1023px
     3. Laptop    (≥ 64rem)    1024px – 1439px
     4. Escritorio(≥ 90rem)    1440px en adelante

   Estructura de este archivo:
     1. Variables (aquí cambian los tamaños de cada pantalla)
     2. Base y utilidades
     3. Encabezado y navegación
     4. Hero (contenido, botones, redes)
     5. Tecnologías y scroll
     6. Pantallas: tablet → laptop → escritorio
   ========================================================================== */


/* ==========================================================================
   1. VARIABLES
   Los valores de abajo son los de MÓVIL. Cada pantalla más grande
   solo cambia estas variables (ver sección 6).
   ========================================================================== */
:root {
  /* Colores */
  --color-bg: #050505;
  --color-text: #ffffff;
  --color-soft: #d4d4d4;
  --color-muted: #a8a8a8;
  --color-subtle: #8a8a8a;
  --color-line: rgba(255, 255, 255, 0.18);
  --color-line-strong: rgba(255, 255, 255, 0.4);

  /* Tipografía */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-name: clamp(2.5rem, 11vw, 3rem);
  --fs-role: 1.25rem;
  --fs-body: 1rem;
  --fs-brand: 1.125rem;
  --fs-nav: 1.0625rem;

  /* Medidas */
  --container: 85rem;
  --gutter: 1.25rem;
  --header-h: 4.5rem;
  --logo-size: 2.5rem;
  --btn-h: 3rem;
  --social-icon: 1.75rem;
  --radius: 0.5rem;
}


/* ==========================================================================
   2. BASE Y UTILIDADES
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.625rem 1rem;
  border-radius: var(--radius);
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 600;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}


/* ==========================================================================
   3. ENCABEZADO Y NAVEGACIÓN
   Flexbox: una sola fila (marca a la izquierda, menú a la derecha).
   ========================================================================== */
.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 10;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  inline-size: min(100% - 2 * var(--gutter), var(--container));
  min-block-size: var(--header-h);
  margin-inline: auto;
}

/* Marca (logo + nombre) */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand__logo {
  inline-size: var(--logo-size);
  block-size: var(--logo-size);
  object-fit: contain;
}

.brand__name {
  font-size: var(--fs-brand);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Botón de menú (solo móvil) */
.nav-toggle {
  display: grid;
  place-items: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(5, 5, 5, 0.5);
  color: inherit;
  cursor: pointer;
}

/* Las 3 barras de la hamburguesa se dibujan con CSS (sin imágenes) */
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  inline-size: 1.25rem;
  block-size: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.nav-toggle__bars {
  position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle__bars::before {
  top: -0.4rem;
}

.nav-toggle__bars::after {
  top: 0.4rem;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(0.4rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-0.4rem) rotate(-45deg);
}

/* Menú desplegable en móvil.
   Si JavaScript falla, el menú se ve siempre (la clase .js la pone script.js). */
.site-nav {
  position: absolute;
  top: 100%;
  inset-inline: 0;
  padding: 0.25rem var(--gutter) 1rem;
  border-block: 1px solid var(--color-line);
  background: var(--color-bg);
}

.js .site-nav {
  display: none;
}

.js .site-nav.is-open {
  display: block;
}

.site-nav__list {
  display: flex;
  flex-direction: column;
}

.site-nav__link {
  display: block;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: var(--fs-nav);
  transition: color 0.2s ease;
}

.site-nav__list li:last-child .site-nav__link {
  border-bottom: 0;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-text);
}

.site-nav__link[aria-current="page"] {
  font-weight: 600;
}


/* ==========================================================================
   4. HERO
   El hero es un Grid de 1 celda: la imagen de fondo y el degradado quedan
   detrás (position: absolute) y .hero__inner ocupa todo el alto.
   ========================================================================== */
.hero {
  --hero-overlay: linear-gradient(
    180deg,
    rgba(5, 5, 5, 0.9) 0%,
    rgba(5, 5, 5, 0.72) 45%,
    rgba(5, 5, 5, 0.55) 100%
  );

  position: relative;
  isolation: isolate;
  display: grid;
  min-block-size: 100vh;
  min-block-size: 100svh;
  padding-top: var(--header-h);
  overflow: clip;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: 61% 50%; /* centra el logo de la foto en pantallas angostas */
}

/* Degradado oscuro encima de la foto para que el texto se lea bien */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--hero-overlay);
}

/* Grid del contenido: fila 1 = texto, fila 2 = tecnologías */
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  row-gap: 2.5rem;
  inline-size: min(100% - 2 * var(--gutter), var(--container));
  margin-inline: auto;
  padding-block: 1.5rem 1.75rem;
}

.hero__content {
  grid-row: 1;
  align-self: center;
}

.hero__eyebrow {
  margin-block-end: 0.75rem;
  color: var(--color-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero__name {
  font-size: var(--fs-name);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}

.hero__role {
  margin-block-start: 0.5rem;
  color: var(--color-muted);
  font-size: var(--fs-role);
  font-weight: 500;
}

.hero__description {
  max-inline-size: 23em; /* en "em": se ajusta al tamaño de letra de cada pantalla */
  margin-block: 1.25rem 1.75rem;
  color: var(--color-soft);
  font-size: var(--fs-body);
  line-height: 1.6;
  text-wrap: pretty;
}

/* Botones: Flexbox, se acomodan en 1 o 2 filas según el ancho */
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  flex: 1 1 9.5rem;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-block-size: var(--btn-h);
  padding: 0.5rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: var(--fs-body);
  font-weight: 600;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn__icon {
  inline-size: 1.25rem;
  block-size: 1.25rem;
}

.btn--primary {
  background: var(--color-text);
  color: #0a0a0a;
}

.btn--primary:hover {
  background: #e4e4e4;
}

.btn--outline {
  border-color: var(--color-line-strong);
  color: var(--color-text);
}

.btn--outline:hover {
  border-color: var(--color-text);
  background: rgba(255, 255, 255, 0.07);
}

/* Redes sociales: solo iconos, con área de toque de 44px */
.social {
  display: flex;
  gap: 0.25rem;
  margin-block-start: 1.5rem;
  margin-inline-start: -0.5rem;
}

.social__link {
  display: grid;
  place-items: center;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.social__link:hover {
  opacity: 1;
}

.social__link img {
  inline-size: var(--social-icon);
  block-size: var(--social-icon);
  object-fit: contain;
}


/* ==========================================================================
   5. TECNOLOGÍAS Y SCROLL
   ========================================================================== */
.tech {
  grid-row: 2;
}

/* Título con línea a los lados (Flexbox) */
.tech__title {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-block-end: 1.25rem;
  color: var(--color-subtle);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.tech__title::after {
  content: "";
  flex: 1;
  block-size: 1px;
  background: var(--color-line);
}

/* Iconos: Grid de 3 columnas en móvil, 6 desde tablet */
.tech__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem 0.5rem;
}

.tech__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-muted);
  font-size: 0.75rem;
  text-align: center;
}

.tech__item img {
  inline-size: 2.25rem;
  block-size: 2.25rem;
  object-fit: contain;
}

/* Indicador de scroll: oculto en móvil y tablet */
.scroll-hint {
  display: none;
}

.scroll-hint__mouse {
  position: relative;
  inline-size: 1.25rem;
  block-size: 2rem;
  border: 1.5px solid var(--color-line-strong);
  border-radius: 0.75rem;
}

.scroll-hint__mouse::after {
  content: "";
  position: absolute;
  top: 0.375rem;
  left: 50%;
  inline-size: 3px;
  block-size: 6px;
  border-radius: 2px;
  background: var(--color-text);
  transform: translateX(-50%);
}

.scroll-hint__row {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
}

.scroll-hint__text {
  max-inline-size: 8rem; /* 2 líneas: "SCROLL PARA / VER MÁS" */
  color: var(--color-subtle);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  line-height: 1.6;
  text-align: right;
  text-transform: uppercase;
}

.scroll-hint__line {
  inline-size: 1px;
  background: var(--color-line-strong);
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-hint__mouse::after {
    animation: scroll-dot 1.8s ease-in-out infinite;
  }
}

@keyframes scroll-dot {
  0%   { opacity: 1; transform: translate(-50%, 0); }
  60%  { opacity: 0; transform: translate(-50%, 0.5rem); }
  100% { opacity: 0; transform: translate(-50%, 0.5rem); }
}


/* ==========================================================================
   6. PANTALLAS (de menor a mayor)
   ========================================================================== */

/* ---- 2. TABLET · desde 768px ---------------------------------------------
   - El menú ya cabe en una fila: se oculta la hamburguesa.
   - Tecnologías en 1 fila de 6.
   ------------------------------------------------------------------------- */
@media (min-width: 48rem) {
  :root {
    --gutter: 2rem;
    --header-h: 5.5rem;
    --logo-size: 2.75rem;
    --fs-name: 3.75rem;
    --fs-role: 1.5rem;
    --fs-body: 1.0625rem;
    --fs-brand: 1.25rem;
    --fs-nav: 1rem;
    --btn-h: 3.25rem;
    --social-icon: 2rem;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav,
  .js .site-nav {
    position: static;
    display: block;
    padding: 0;
    border: 0;
    background: none;
  }

  .site-nav__list {
    flex-direction: row;
    gap: 2rem;
  }

  .site-nav__link,
  .site-nav__list li:last-child .site-nav__link {
    padding: 0.5rem 0.25rem;
    border-bottom: 2px solid transparent;
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: var(--color-text);
  }

  .btn {
    flex: 0 0 auto;
    padding-inline: 1.75rem;
  }

  .tech__title::before {
    content: "";
    flex: none;
    inline-size: 2.5rem;
    block-size: 1px;
    background: var(--color-line);
  }

  .tech__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .tech__item img {
    inline-size: 2.5rem;
    block-size: 2.5rem;
  }
}


/* ---- 3. LAPTOP · desde 1024px --------------------------------------------
   - El Hero pasa a Grid de 12 columnas: texto a la izquierda,
     la foto se ve a la derecha.
   - Aparece el indicador de scroll.
   ------------------------------------------------------------------------- */
@media (min-width: 64rem) {
  :root {
    --gutter: 3rem;
    --header-h: 6.5rem;
    --logo-size: 3rem;
    --fs-name: 4.5rem;
    --fs-role: 1.75rem;
    --fs-body: 1.125rem;
    --fs-brand: 1.375rem;
    --fs-nav: 1.0625rem;
    --btn-h: 3.5rem;
  }

  .hero {
    --hero-overlay:
      linear-gradient(90deg, rgba(5, 5, 5, 0.9) 0%, rgba(5, 5, 5, 0.7) 30%, rgba(5, 5, 5, 0) 52%, rgba(5, 5, 5, 0.15) 100%),
      linear-gradient(0deg, rgba(5, 5, 5, 0.8) 0%, rgba(5, 5, 5, 0) 26%);
  }

  .hero__bg {
    object-position: 50% 50%;
  }

  .hero__inner {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 1.5rem;
    padding-block: 2rem 2.5rem;
  }

  .hero__content {
    grid-column: 1 / span 7;
  }

  .tech {
    grid-column: 1 / span 7;
  }

  .scroll-hint {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
    grid-column: 9 / -1; /* ocupa las últimas columnas y se alinea a la derecha */
    grid-row: 2;
    align-self: end;
    justify-self: end;
  }

  .social__link img {
    inline-size: 2rem;
    block-size: 2rem;
  }
}


/* ---- 4. ESCRITORIO · desde 1440px ----------------------------------------
   Solo se agrandan textos y espacios; el layout es el mismo de laptop.
   El contenido se centra con un ancho máximo (--container).
   ------------------------------------------------------------------------- */
@media (min-width: 90rem) {
  :root {
    --gutter: 4rem;
    --header-h: 7.5rem;
    --logo-size: 3.25rem;
    --fs-name: 5rem;
    --fs-role: 2rem;
    --fs-body: 1.25rem;
    --fs-brand: 1.5rem;
    --fs-nav: 1.125rem;
  }

  .tech__item {
    font-size: 0.8125rem;
  }

  .tech__item img {
    inline-size: 2.75rem;
    block-size: 2.75rem;
  }
}