:root {
  --bg: #0b0f14;
  --bg-soft: #11161d;
  --card: #151c26;
  --card-hover: #1b2430;
  --border: #232d3a;
  --text: #e6edf3;
  --text-dim: #93a1af;
  --accent: #61dafb;
  --accent-soft: rgba(97, 218, 251, 0.12);
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: var(--accent-soft); }

.accent { color: var(--accent); }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav__brand {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

.nav__links { display: flex; gap: 1.5rem; }
.nav__links a { color: var(--text-dim); font-size: 0.92rem; }
.nav__links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 5rem 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero__eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.hero__title {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.05;
  margin-bottom: 0.4rem;
}

.hero__subtitle { color: var(--text-dim); font-size: 1.15rem; margin-bottom: 1rem; }

.hero__desc { color: var(--text-dim); max-width: 46ch; margin-bottom: 1.5rem; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.92rem;
  background: transparent;
  transition: background 0.2s, border-color 0.2s, transform 0.1s;
}
.btn:hover { background: var(--bg-soft); border-color: var(--text-dim); text-decoration: none; }
.btn:active { transform: scale(0.98); }

.btn--primary { background: var(--accent); border-color: var(--accent); color: #071218; font-weight: 600; }
.btn--primary:hover { background: #8ae2fc; border-color: #8ae2fc; color: #071218; }

.hero__meta { list-style: none; display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; color: var(--text-dim); font-size: 0.9rem; }

.hero__img img {
  width: 100%;
  max-width: 320px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: block;
  margin: 0 auto;
}

/* Sections */
.section { max-width: 1100px; margin: 0 auto; padding: 4rem 2rem; }

.section__title { font-size: 1.8rem; margin-bottom: 0.5rem; }
.section__lead { color: var(--text-dim); margin-bottom: 1.5rem; }
.section__subtitle { font-size: 1.25rem; margin: 2.5rem 0 0.5rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.about p { color: var(--text-dim); margin-bottom: 1rem; max-width: 70ch; }

.about__quote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text);
  font-style: italic;
  margin-top: 1.25rem;
}
.about__quote span { display: block; font-style: normal; color: var(--text-dim); font-size: 0.85rem; margin-top: 0.25rem; }

/* Grid de proyectos */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.project {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.project:hover { background: var(--card-hover); border-color: var(--text-dim); transform: translateY(-2px); }

.project__name { font-size: 1.15rem; font-weight: 600; }

.project__badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.25rem 0; }

.badge {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(97, 218, 251, 0.25);
}
.badge--alt { background: rgba(255, 255, 255, 0.05); color: var(--text-dim); border-color: var(--border); }

.project__desc { color: var(--text-dim); font-size: 0.95rem; flex: 1; }

.project__link { font-family: var(--mono); font-size: 0.82rem; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.25rem; }

.skill { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.skill__title { font-size: 0.95rem; margin-bottom: 0.75rem; color: var(--accent); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.5px; }
.skill__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tag {
  font-size: 0.82rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

/* Timeline */
.timeline { position: relative; padding-left: 1.5rem; border-left: 2px solid var(--border); display: flex; flex-direction: column; gap: 1.75rem; }

.timeline__item { position: relative; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -1.62rem;
  top: 0.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
}

.timeline__role { font-weight: 600; }
.timeline__org { color: var(--accent); font-size: 0.92rem; }
.timeline__date { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); margin: 0.2rem 0 0.5rem; }
.timeline__body { color: var(--text-dim); font-size: 0.92rem; max-width: 70ch; }

/* Education */
.education { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }

.education__item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.education__title { font-weight: 600; font-size: 0.98rem; }
.education__meta { color: var(--text-dim); font-size: 0.85rem; margin-top: 0.3rem; }

/* Contact */
.contact p { color: var(--text-dim); margin-bottom: 1.25rem; }
.contact__links { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 2rem; text-align: center; color: var(--text-dim); font-size: 0.88rem; }

/* Responsive */
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 3rem; }
  .hero__desc { margin-inline: auto; }
  .hero__actions, .hero__meta { justify-content: center; }
  .hero__img { order: -1; }
  .nav { flex-direction: column; gap: 0.6rem; padding: 0.9rem 1rem; }
  .nav__links { gap: 1rem; }
  .section { padding: 3rem 1.25rem; }
}