/* ============================================================
   Elías Huarte — styles.css
   Compartido por index.html y blog.html
   Mobile-first: base para móvil, @media (min-width: 768px) para desktop
   ============================================================ */

/* ---------- Variables de diseño ---------- */
:root {
  --bg: #0a0a0f;
  --bg-elev: #12121a;
  --card-bg: #15151e;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(37, 99, 235, 0.5);

  --text: #f5f5f7;
  --text-muted: #a1a1aa;

  --accent: #2563eb;
  --accent-hover: #3b82f6;
  --neon: #8b5cf6;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-glow: 0 20px 60px -20px rgba(37, 99, 235, 0.35);
  --shadow-card: 0 10px 40px -15px rgba(0, 0, 0, 0.6);

  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);

  --font-display: 'Poppins', system-ui, sans-serif;
  --font-body: 'Poppins', system-ui, sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* Gradiente sutil de fondo para dar profundidad */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(37, 99, 235, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 110%, rgba(139, 92, 246, 0.08), transparent);
  background-attachment: fixed;
}

h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); line-height: 1.1; letter-spacing: -0.02em; }
p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
  position: relative;
}

/* Sección alterna: fondo ligeramente elevado para romper la monotonía */
#pasion {
  background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.04) 30%, rgba(37, 99, 235, 0.05) 70%, transparent 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-top: 40px;
}

/* Divisor delgado antes de contacto para sugerir un corte de sección */
#contacto::before {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--neon));
  border-radius: 2px;
  margin-bottom: 40px;
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 40px;
  max-width: 780px;
}

/* Palabras destacadas con gradiente acento */
.highlight {
  background: linear-gradient(90deg, var(--accent-hover), var(--neon));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Salto de línea que sólo aparece en desktop */
.br-desktop { display: none; }

.eyebrow {
  color: var(--accent-hover);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* Botones */
.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 500;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  display: inline-block;
  padding: 11px 24px;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-ghost:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-links {
  display: none; /* oculto en móvil por defecto */
  gap: 32px;
}
.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent-hover); }

/* Botón hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
/* Animación de X cuando el menú está abierto */
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Overlay de menú móvil abierto */
body.nav-open .nav-links {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: rgba(10, 10, 15, 0.96);
  backdrop-filter: blur(20px);
  padding: 30px 20px;
  gap: 20px;
  border-bottom: 1px solid var(--border);
}

/* ---------- Hero ---------- */
.hero {
  padding-top: 140px; /* espacio para el navbar fijo */
  padding-bottom: 60px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.hero-text .display {
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #c8c8d0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-photo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.hero-cta { margin-top: 4px; }
/* En móvil mostramos el CTA bajo la foto; en desktop bajo el subtítulo */
.hero-cta-desktop { display: none; }
.hero-cta-mobile { display: inline-block; }
.photo-placeholder,
.hero-img {
  width: clamp(240px, 70vw, 380px);
  height: clamp(240px, 70vw, 380px);
  border-radius: 50%;
  border: 1px solid var(--border);
  object-fit: cover;
  background: linear-gradient(135deg, #1a1a26, #0d0d14);
  box-shadow: 0 30px 80px -30px rgba(37, 99, 235, 0.4);
}
.photo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}
.photo-placeholder::before {
  content: '';
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 30% 30%, rgba(37, 99, 235, 0.3), transparent 60%);
  pointer-events: none;
}

/* ---------- Carrusel ---------- */
.carousel {
  position: relative;
  padding: 0 0 20px;
}
.carousel:focus { outline: none; }
.carousel:focus-visible { outline: 2px solid var(--accent); outline-offset: 8px; border-radius: var(--radius-md); }

.carousel-viewport {
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.carousel-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.carousel-card {
  flex: 0 0 100%;
  min-width: 0;
  padding: 36px 28px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition);
}
.carousel-card:hover { border-color: var(--border-hover); }

.card-period {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-hover);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.card-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  margin: 4px 0 8px;
}
.card-image {
  width: 100%;
  aspect-ratio: 100 / 43;
  background: linear-gradient(135deg, #1c1c28, #0f0f17);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  object-fit: contain;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 8px 0;
}
.card-desc,
.card-body p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
}
/* Descripciones en múltiples párrafos para darle aire al texto */
.card-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.carousel-card .btn-ghost { align-self: flex-start; margin-top: 8px; }

/* Las imágenes de pasión tienen relleno oscuro horneado en el archivo:
   usamos un marco más cuadrado para que el sujeto llene la card */
#pasion .card-image {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* Flechas prev/next */
.carousel-btn {
  position: absolute;
  top: 40%;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(21, 21, 30, 0.85);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.6rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
  z-index: 2;
}
.carousel-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.carousel-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}
.carousel-prev { left: -8px; }
.carousel-next { right: -8px; }

/* Dots indicadores */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transition: all var(--transition);
  padding: 0;
}
.carousel-dot.active {
  background: var(--accent);
  width: 28px;
  border-radius: 4px;
}

/* ---------- Contacto ---------- */
.contact { padding-bottom: 100px; }
.contact-headline {
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  max-width: 820px;
  margin-bottom: 60px;
  background: linear-gradient(180deg, #ffffff 0%, #b8b8c2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.ideas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 60px;
}
.idea-card {
  padding: 28px 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.idea-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.idea-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-hover);
  margin-bottom: 12px;
}
.idea-card p { color: var(--text-muted); font-size: 1rem; }
.idea-card strong { color: var(--text); }

.contact-cta {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 620px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-weight: 500;
  transition: all var(--transition);
}
.contact-link:hover {
  border-color: var(--border-hover);
  background: rgba(37, 99, 235, 0.08);
  transform: translateY(-2px);
}

.contact-email {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 5vw, 2.6rem);
  word-break: break-word;
  background: linear-gradient(90deg, var(--accent-hover), var(--neon));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity var(--transition);
}
.contact-email:hover { opacity: 0.85; }

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ---------- Página Blog ---------- */
.blog-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 20px 80px;
}
.blog-hero h1 {
  font-size: clamp(3rem, 10vw, 7rem);
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 0%, var(--accent) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.blog-hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 500px;
  margin: 0 auto;
}

/* ---------- Animaciones on-scroll ---------- */
[data-animate] {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
[data-animate="fade-up"]    { transform: translateY(30px); }
[data-animate="fade-left"]  { transform: translateX(-30px); }
[data-animate="fade-right"] { transform: translateX(30px); }

[data-animate].in-view {
  opacity: 1;
  transform: translate(0, 0);
}

/* Soporte para usuarios que prefieren menos movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-animate] { opacity: 1; transform: none; }
}

/* ============================================================
   Desktop (≥ 768px)
   ============================================================ */
@media (min-width: 768px) {
  .container { padding: 0 40px; }
  .section { padding: 80px 0; }

  /* Navbar: mostrar links siempre, ocultar hamburger */
  .nav-links { display: flex; }
  .nav-toggle { display: none; }

  /* Hero: dos columnas */
  .hero { padding-top: 180px; }
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
  }
  /* En desktop el CTA vive bajo el subtítulo, en la columna de texto */
  .hero-cta-desktop { display: inline-block; margin-top: 12px; }
  .hero-cta-mobile { display: none; }

  /* Carrusel con padding exterior para las flechas */
  .carousel { padding: 0 60px 20px; }
  .carousel-prev { left: 0; }
  .carousel-next { right: 0; }
  /* Card en 2 columnas para que quepa en el viewport sin scroll */
  .carousel-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
      "image period"
      "image title"
      "image body"
      "image button";
    column-gap: 48px;
    row-gap: 14px;
    padding: 44px 48px;
    align-items: start;
  }
  .carousel-card > .card-period { grid-area: period; margin: 0; }
  .carousel-card > .card-title  { grid-area: title;  margin: 0 0 4px; }
  .carousel-card > .card-image  { grid-area: image;  align-self: center; margin: 0; }
  .carousel-card > .card-body   { grid-area: body;   margin: 0; }
  .carousel-card > .btn-ghost   { grid-area: button; justify-self: start; align-self: end; margin-top: 12px; }

  /* Título un poco más contenido para el layout de 2 columnas */
  .carousel-card .card-title { font-size: clamp(1.6rem, 3vw, 2.4rem); }
  .carousel-card .card-body p { font-size: 1rem; line-height: 1.6; }
  .carousel-card .card-body { gap: 10px; }

  /* El título de empresas cabe en una línea en desktop */
  #empresas .section-title { max-width: none; white-space: nowrap; }

  /* El título de pasión se parte en dos líneas exactas en desktop */
  .section-title-pasion { max-width: none; }
  .br-desktop { display: inline; }
  .card-desc,
  .card-body p { font-size: 1.1rem; }
  .card-body { max-width: 720px; gap: 16px; }

  /* Ideas: grid 2x2 */
  .ideas-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .idea-card { padding: 36px 32px; }

  /* Contact links: horizontal */
  .contact-links {
    flex-direction: row;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
  }
}

@media (min-width: 1024px) {
  .ideas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}