/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, sans-serif;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.25s ease, color 0.25s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { margin: 0; font-weight: 600; }
p { margin: 0 0 1rem; }
button { font-family: inherit; cursor: pointer; }

/* ===== Palette & theme variables ===== */
:root {
  --burgundy: #780000;
  --red: #c1121f;
  --cream: #fdf0d5;
  --navy: #003049;
  --steel: #669bbc;
}

html[data-theme="light"] {
  --bg: var(--cream);
  --bg-alt: #f6e3c5;
  --bg-card: #ffffff;
  --text: var(--navy);
  --text-muted: #45657f;
  --border: rgba(0, 48, 73, 0.14);
  --accent: var(--red);
  --accent-dark: var(--burgundy);
  --link: #2f6d92;
  --nav-bg: rgba(253, 240, 213, 0.88);
  --shadow: rgba(0, 48, 73, 0.1);
  --terminal-bg: var(--navy);
  --terminal-text: var(--cream);
}

html[data-theme="dark"] {
  --bg: var(--navy);
  --bg-alt: #012b46;
  --bg-card: #013656;
  --text: var(--cream);
  --text-muted: #a9c8db;
  --border: rgba(253, 240, 213, 0.14);
  --accent: var(--red);
  --accent-dark: #e34a56;
  --link: var(--steel);
  --nav-bg: rgba(0, 48, 73, 0.88);
  --shadow: rgba(0, 0, 0, 0.35);
  --terminal-bg: #011c2e;
  --terminal-text: var(--cream);
}

/* ===== Utilities ===== */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.icon { width: 1.15em; height: 1.15em; flex-shrink: 0; }
.section { padding: 6rem 0; scroll-margin-top: 80px; }
.section-contact { scroll-margin-top: 80px; }
.section-alt { background-color: var(--bg-alt); }
.section-kicker {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-heading { max-width: 640px; margin-bottom: 3rem; }
.section-title { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 0.75rem; }
.section-subtitle { color: var(--text-muted); font-size: 1.05rem; margin: 0; }

.badge-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background-color: var(--bg-card);
}
.badge-accent {
  background-color: var(--accent);
  color: var(--cream);
  border-color: var(--accent);
  font-weight: 600;
}
.badge-outline {
  border-color: var(--accent-dark);
  color: var(--accent-dark);
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-sm { padding: 0.55rem 1.1rem; font-size: 0.85rem; }
.btn-primary { background-color: var(--accent); color: #fff; }
.btn-primary:hover { background-color: var(--accent-dark); transform: translateY(-2px); }
.btn-ghost { background-color: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ===== Language toggle ===== */
html[lang="es"] [data-i18n-lang="en"] { display: none; }
html[lang="en"] [data-i18n-lang="es"] { display: none; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.brand {
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  padding: 0.4rem;
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-list { display: flex; gap: 2rem; }
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding-bottom: 4px;
}
.nav-link:hover { color: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 1rem; }
.lang-switch {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.lang-btn {
  background: none;
  border: none;
  padding: 0.35rem 0.8rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}
.lang-btn.is-active { background-color: var(--accent); color: #fff; }

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 2.4rem;
  height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.icon-moon { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: block; }

/* ===== Hero ===== */
.hero { padding: 5rem 0 6rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  margin-bottom: 0.5rem;
  color: var(--text);
}
.hero-role {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 500;
  color: var(--link);
  margin-bottom: 1.25rem;
}
.dot-sep { color: var(--accent); }
.hero-text { font-size: 1.1rem; color: var(--text-muted); max-width: 46ch; }
.hero-location {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Terminal */
.terminal {
  background-color: var(--terminal-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 50px var(--shadow);
  border: 1px solid var(--border);
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  background-color: rgba(255, 255, 255, 0.04);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }
.terminal-title {
  margin-left: 0.75rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--steel);
}
.terminal-body {
  padding: 1.5rem;
  min-height: 260px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  color: var(--terminal-text);
}
.terminal-line { margin-bottom: 0.6rem; white-space: pre-wrap; word-break: break-word; }
.terminal-prompt { color: var(--steel); margin-right: 0.5rem; }
.terminal-output { color: var(--cream); }
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background-color: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3.5rem;
  align-items: start;
}
.about-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 16px;
  border: 3px solid var(--accent);
  box-shadow: 0 15px 40px var(--shadow);
}
.about-text p { color: var(--text-muted); font-size: 1.02rem; }
.highlights { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.highlights li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text);
}
.highlights .icon { color: var(--accent); margin-top: 3px; }

/* ===== Stack ===== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.stack-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.stack-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 15px 35px var(--shadow);
}
.stack-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background-color: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}
.stack-card h3 { margin-bottom: 0.9rem; font-size: 1.1rem; }

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: start;
}
.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover { transform: translateY(-4px); box-shadow: 0 20px 45px var(--shadow); }
.project-featured { border-color: var(--accent); grid-column: span 1; }
.project-badges { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.project-card h3 { font-size: 1.3rem; }
.project-desc { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 0; }
.project-links { display: flex; gap: 0.75rem; margin-top: auto; padding-top: 0.5rem; flex-wrap: wrap; }

/* ===== Contact ===== */
.section-contact { text-align: center; }
.section-contact .section-kicker,
.section-contact .section-title,
.section-contact .section-subtitle { display: block; }
.section-contact .section-title { margin-left: auto; margin-right: auto; }
.section-contact .section-subtitle { max-width: 520px; margin: 0 auto; }
.contact-links {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background-color: var(--bg-card);
  font-weight: 500;
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.contact-link:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--accent); }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--bg-alt);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}
.footer-text { color: var(--text-muted); margin: 0; }
.footer-socials { display: flex; gap: 1rem; }
.footer-socials a {
  width: 2.4rem;
  height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  transition: all 0.2s ease;
}
.footer-socials a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.footer-bottom {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: "JetBrains Mono", monospace;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-terminal { order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { width: 160px; margin: 0 auto; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
  }
  .nav-links.is-open { max-height: 400px; padding: 1.5rem; }
  .nav-list { flex-direction: column; gap: 1rem; width: 100%; }
  .nav-actions { width: 100%; justify-content: space-between; }
}

@media (max-width: 600px) {
  .stack-grid { grid-template-columns: 1fr; }
  .section { padding: 4rem 0; }
  .hero { padding: 3rem 0 4rem; }
}