/* ================================================
   PORTAFOLIO PERSONAL - Leandro Melchiori
   Fuente: Inter (Google Fonts) — elegida por su
   legibilidad en pantalla y estética moderna/tech.
   JetBrains Mono para etiquetas de código.
   ================================================ */

/* ---- Variables globales ---- */
:root {
  --color-bg: #0a0a0f;
  --color-surface: #111118;
  --color-border: #1e1e2e;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-text: #e2e8f0;
  --color-muted: #94a3b8;
  --color-accent: #22d3ee;
  --radius: 0.75rem;
  --font-main: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* ---- Reset y base ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

ul {
  list-style: none;
}

/* ---- Contenedor global ---- */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* ---- Etiqueta de sección ---- */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  display: block;
  margin-bottom: 1.5rem;
}

.section-desc {
  color: var(--color-muted);
  max-width: 42rem;
  margin-bottom: 3rem;
}

/* ================================================
   BOTONES
   Transición: cambio de fondo en hover
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.15s ease;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: #fff;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ================================================
   HEADER / NAV
   ================================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-bottom 0.3s ease;
}

header.scrolled {
  background-color: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.logo:hover {
  color: var(--color-primary);
}

nav .nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav .nav-links a {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color 0.25s ease;
}

nav .nav-links a:hover {
  color: var(--color-primary);
}

/* ---- Menú mobile ---- */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 1rem 5%;
  gap: 1rem;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: var(--color-muted);
  font-size: 0.95rem;
  padding: 0.4rem 0;
}

.mobile-menu a:hover {
  color: var(--color-primary);
}

/* ================================================
   HERO
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.hero-grid h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.hero-location {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.hero-description {
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 38rem;
  margin-bottom: 2rem;
}

.hero-links {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.hero-social {
  display: flex;
  gap: 1.25rem;
}

.hero-social a {
  color: var(--color-muted);
  transition: color 0.25s ease, transform 0.2s ease;
}

.hero-social a:hover {
  color: var(--color-primary);
  transform: translateY(-3px);
}

/* Imagen de perfil */
.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image-glow {
  position: absolute;
  width: 18rem;
  height: 18rem;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero-image {
  width: min(20rem, 80%);
  height: min(20rem, 80%);
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

/* ================================================
   SECCIÓN: SOBRE MÍ
   ================================================ */
#sobre-mi {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  color: var(--color-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about-text strong {
  color: var(--color-text);
}

.about-areas h3 {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.areas-list li {
  color: var(--color-muted);
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.areas-list li::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ================================================
   SECCIÓN: TARJETAS (Proyectos) — usa CSS Grid
   ================================================ */
#tarjetas {
  padding: 6rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

/* Animación hover en las tarjetas */
.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.15);
}

.card-img {
  width: 100%;
  height: 13rem;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.65rem;
}

.card-text {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-muted);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.6rem;
  border-radius: 0.35rem;
  transition: background-color 0.2s, color 0.2s;
}

.card:hover .tag {
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--color-primary-hover);
}

.card-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  transition: color 0.2s, letter-spacing 0.2s;
}

.card-link:hover {
  color: var(--color-primary-hover);
  letter-spacing: 0.02em;
}

/* ================================================
   SECCIÓN: HABILIDADES — Tabla
   ================================================ */
#habilidades {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.skills-wrap {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.skills-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.skills-table thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.skills-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease;
}

.skills-table tbody tr:hover {
  background-color: rgba(99, 102, 241, 0.06);
}

.skills-table tbody td {
  padding: 0.9rem 1rem;
  color: var(--color-muted);
  vertical-align: top;
}

.skills-table tbody td:first-child {
  color: var(--color-text);
  white-space: nowrap;
}

.skills-table tbody td strong {
  color: var(--color-text);
}

/* Hobbies */
.hobbies h3 {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.hobbies-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.75rem;
}

.hobbies-list li {
  color: var(--color-muted);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

/* ================================================
   SECCIÓN: PELÍCULAS FAVORITAS
   ================================================ */
#peliculas {
  padding: 6rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.movies-grid {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.movie-card {
  flex: 1;
  min-width: 15rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.movie-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-5px);
}

.movie-poster {
  width: 100%;
  height: 15rem;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.movie-card:hover .movie-poster {
  transform: scale(1.05);
}

.movie-info {
  padding: 1.5rem;
  flex: 1;
}

.movie-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.5rem;
}

.movie-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.movie-desc {
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ================================================
   SECCIÓN: CONTACTO — Formulario
   ================================================ */
#contacto {
  padding: 6rem 0;
  border-top: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-heading {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.contact-sub {
  color: var(--color-muted);
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.contact-item a {
  color: var(--color-text);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.contact-item a:hover {
  color: var(--color-primary);
}

/* Formulario */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 0.65rem 0.9rem;
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-border);
}

.form-group textarea {
  resize: vertical;
}

.form-success {
  display: none;
  color: #4ade80;
  font-size: 0.875rem;
  text-align: center;
  padding: 0.5rem;
  animation: fadeIn 0.4s ease;
}

/* ================================================
   FOOTER
   ================================================ */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

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

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer-social {
  display: flex;
  gap: 1.25rem;
}

.footer-social a {
  color: var(--color-muted);
  transition: color 0.25s ease, transform 0.2s ease;
}

.footer-social a:hover {
  color: var(--color-primary);
  transform: translateY(-3px);
}

/* ================================================
   ANIMACIONES
   ================================================ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Animación de entrada suave para secciones */
section {
  animation: fadeIn 0.5s ease both;
}

/* ================================================
   RESPONSIVO — Media Queries
   ================================================ */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .hero-image-wrap {
    order: -1;
  }

  .hero-links {
    justify-content: center;
  }

  .hero-social {
    justify-content: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none !important;
  }

  .menu-toggle {
    display: block;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .movies-grid {
    flex-direction: column;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .hero-grid h1 {
    font-size: 2.25rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }
}