/* =====================================================================
   Gonzalo La Chica — Portfolio Styles
   Aesthetic: editorial / technical — warm cream background, near-black
   text, single terracotta accent, monospace headings + serif body.
   ===================================================================== */

:root {
  --bg:        #f6f2ea;
  --bg-alt:    #efeae0;
  --ink:       #161614;
  --ink-soft:  #4a4843;
  --ink-faint: #8a877e;
  --rule:      #d9d3c5;
  --accent:    #c25430;
  --accent-ink:#8a3617;

  --font-mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;

  --max: 780px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: color .15s ease, border-color .15s ease;
}
a:hover { color: var(--accent); border-color: var(--accent); }

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

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.topbar__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: .9rem var(--pad);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
}
.topbar__brand {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .82rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  border: none;
}
.topbar__nav {
  display: flex;
  gap: 1.2rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
}
.topbar__nav a {
  border: none;
  color: var(--ink-soft);
}
.topbar__nav a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .topbar__nav { gap: .75rem; font-size: .7rem; }
  .topbar__nav a:nth-child(n+4) { display: none; } /* hide last items on small screens */
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.5rem, 10vw, 6rem) var(--pad) clamp(2rem, 6vw, 3.5rem);
}
.hero__meta {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 2rem;
}
.hero__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}
.hero__lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 0 0 2rem;
}
.hero__stack {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .75rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--ink-faint);
  letter-spacing: .02em;
}
.hero__stack span::after { content: " /"; margin-left: .6rem; color: var(--rule); }
.hero__stack span:last-child::after { content: ""; }

.hero__notice {
  margin-top: 1.5rem;
  padding: .6rem .9rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--accent-ink);
  background: var(--bg-alt);
  border: 1px dashed var(--rule);
  border-radius: 3px;
  display: inline-block;
}

/* ---------- Section scaffold ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5rem) var(--pad);
  border-top: 1px solid var(--rule);
}
.section__label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 2rem;
}
.section__body > p + p { margin-top: 1rem; }

/* ---------- Projects ---------- */
.project {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}
.project:first-of-type { padding-top: 0; }
.project:last-of-type  { border-bottom: none; padding-bottom: 0; }

.project__index {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--ink-faint);
  padding-top: .4rem;
}
.project__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin: 0 0 .2rem;
}
.project__kicker {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--accent-ink);
  margin: 0 0 .9rem;
  letter-spacing: .01em;
}
.project__desc {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}
.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .6rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-faint);
  margin-bottom: .75rem;
}
.project__tags span {
  padding: .15rem .5rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--bg-alt);
}
.project__links a {
  font-family: var(--font-mono);
  font-size: .8rem;
  border: none;
  color: var(--accent-ink);
}
.project__links a:hover { color: var(--accent); }

/* ---------- Entries (education) ---------- */
.entry {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
}
.entry:last-child { border-bottom: none; }
.entry__when {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--ink-faint);
  padding-top: .25rem;
}
.entry__what h3 {
  margin: 0 0 .15rem;
  font-weight: 600;
  font-size: 1.1rem;
}
.entry__what p {
  margin: 0;
  color: var(--ink-soft);
  font-size: .95rem;
}

@media (max-width: 560px) {
  .entry { grid-template-columns: 1fr; gap: .2rem; }
}

/* ---------- Certifications ---------- */
.cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.cert-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 0;
  border-bottom: 1px dotted var(--rule);
  font-family: var(--font-mono);
  font-size: .88rem;
}
.cert-list li:last-child { border-bottom: none; }
.cert-list__name { color: var(--ink); }
.cert-list__status {
  color: var(--ink-faint);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding-top: .1rem;
}

/* ---------- Contact ---------- */
.section--contact { padding-bottom: 5rem; }
.contact__lede {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
  max-width: 50ch;
}
.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  font-family: var(--font-mono);
  font-size: .9rem;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--rule);
  background: var(--bg-alt);
}
.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem var(--pad);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-faint);
  letter-spacing: .04em;
  text-transform: uppercase;
}
@media (max-width: 560px) {
  .footer__inner { flex-direction: column; gap: .3rem; }
}

/* ---------- About grid with photo ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  align-items: start;
}
.about__photo img {
  width: 100%;
  border-radius: 2px;
  filter: grayscale(15%) contrast(1.02);
  border: 1px solid var(--rule);
  display: block;
}
.about__text > p + p { margin-top: 1rem; }

@media (max-width: 560px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .about__photo {
    max-width: 180px;
  }
}

/* ---------- Featured project figure ---------- */
.project--featured .project__desc:first-of-type {
  font-size: 1.02rem;
}

.project__figure {
  margin: 1.5rem 0 1.25rem;
  padding: 1.25rem;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.project__figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
}
.project__figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-faint);
  letter-spacing: .04em;
  margin-top: .85rem;
  text-align: center;
}

.project__desc--muted {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--ink-faint);
  border-top: 1px dotted var(--rule);
  padding-top: 1rem;
  margin-top: 1.25rem;
}


/* ---------- Reveal on scroll ---------- */
.section, .project, .entry {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
}
.section.is-visible,
.project.is-visible,
.entry.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .section, .project, .entry { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}