:root {
  --bg: #f7f7f3;
  --surface: #ffffff;
  --text: #17202a;
  --muted: #5b6470;
  --accent: #1f4d8c;
  --accent-soft: #e9f1fb;
  --border: #dfe3e8;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

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

.site-header,
.site-footer,
main {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  background: rgba(247, 247, 243, 0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
  gap: 1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
}

.destacado {
  font-weight: 700;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--muted);
  font-weight: 500;
}

.nav-links a[aria-current='page'] {
  color: var(--accent);
}

main {
  padding: 1rem 0 3rem;
}

.image {
    display: block;
    margin: 0 auto;
    max-width: 75%;
    height: auto;
    border-radius: 8px;
}

.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: center;
  padding: 3.5rem 0 2.5rem;
}

.hero-content h1 {
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 600;
}

.button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.button.secondary {
  background: var(--surface);
  color: var(--text);
}

.hero-card,
.card,
.timeline-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.4rem;
}

.hero-card h2,
.section h2,
.section h1 {
  margin-top: 0;
}

.section {
  padding: 2rem 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.card {
  padding: 1.25rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.4rem;
  min-height: 100%;
}

.project-card-header {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.project-card h2,
.project-card h3 {
  margin: 0;
}

.project-card p {
  margin: 0;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.project-tags li {
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.project-link {
  align-self: flex-start;
}

.page-content {
  padding-top: 1rem;
}

.intro {
  padding-top: 1rem;
}

.stack-list,
.contact-list {
  padding-left: 1.2rem;
}

.timeline-item {
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.site-footer {
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 1rem;
}

.lang-selection {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.lang-card {
  width: min(760px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  box-shadow: var(--shadow);
  padding: 2.5rem;
  text-align: center;
}

.lang-intro {
  max-width: 640px;
  margin: 0 auto 2rem;
  color: var(--muted);
}

.language-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.lang-option {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--accent-soft);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.lang-option:hover,
.lang-option:focus-visible {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.lang-option-subtitle {
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 400;
}

.site-header .lang-switcher {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.95rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border);
}

.site-header .lang-switcher a {
  color: var(--muted);
  font-weight: 600;
}

.site-header .lang-switcher a[aria-current='page'] {
  color: var(--accent);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 700px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }

  .nav-links {
    gap: 0.75rem 1rem;
  }

  .hero {
    padding-top: 1.5rem;
  }

  .language-options {
    grid-template-columns: 1fr;
  }

  .lang-card {
    padding: 1.75rem;
  }
}