/* ============================================================
   JORGE DAVILA LARA — PORTFOLIO
   Dark technical theme · cyan accent · system fonts
   ============================================================ */

:root {
  --bg: #0b0f17;
  --bg-alt: #0f1521;
  --bg-card: #131b2b;
  --border: #1e2a3d;
  --text: #e6edf7;
  --text-dim: #93a4bb;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --accent-dim: rgba(56, 189, 248, 0.12);
  --success: #34d399;
  --radius: 12px;
  --max-w: 1080px;
  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", "JetBrains Mono", Consolas, "Courier New", monospace;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --navbar-bg: rgba(11, 15, 23, 0.85);
  --navbar-bg-solid: rgba(11, 15, 23, 0.98);
  --grid-line: rgba(56, 189, 248, 0.035);
  --hero-glow-1: rgba(56, 189, 248, 0.10);
  --hero-glow-2: rgba(34, 211, 238, 0.06);
}

[data-theme="light"] {
  --bg: #f5f8fc;
  --bg-alt: #eef3f9;
  --bg-card: #ffffff;
  --border: #d7e0ec;
  --text: #16233a;
  --text-dim: #4c5f7d;
  --accent: #0284c7;
  --accent-2: #0891b2;
  --accent-dim: rgba(2, 132, 199, 0.10);
  --success: #059669;
  --shadow: 0 8px 30px rgba(15, 40, 80, 0.12);
  --navbar-bg: rgba(255, 255, 255, 0.85);
  --navbar-bg-solid: rgba(255, 255, 255, 0.98);
  --grid-line: rgba(2, 132, 199, 0.06);
  --hero-glow-1: rgba(2, 132, 199, 0.08);
  --hero-glow-2: rgba(8, 145, 178, 0.05);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #04121d; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--navbar-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  background: var(--navbar-bg-solid);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 1px;
}

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

.nav-links {
  display: flex;
  gap: 26px;
  align-items: center;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

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

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.25s;
}

.nav-links a:hover::after { width: 100%; }

.navbar-actions { display: flex; align-items: center; gap: 14px; }

.lang-toggle {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--accent);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.lang-toggle:hover { border-color: var(--accent); background: var(--accent-dim); }

.theme-toggle {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  line-height: 1;
}

.theme-toggle:hover { border-color: var(--accent); background: var(--accent-dim); transform: translateY(-1px); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  position: relative;
  background:
    radial-gradient(ellipse 60% 45% at 70% 15%, var(--hero-glow-1), transparent),
    radial-gradient(ellipse 50% 40% at 15% 80%, var(--hero-glow-2), transparent),
    var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; }

.hero-greeting {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.hero-name {
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-role {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--accent-2);
  margin: 14px 0 18px;
  min-height: 1.6em;
}

.caret {
  display: inline-block;
  width: 2px; height: 1.05em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: -0.15em;
  animation: blink 0.9s step-end infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-tagline {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 640px;
  margin-bottom: 26px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.badge {
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  transition: border-color 0.2s, color 0.2s;
}

.badge:hover { border-color: var(--accent); color: var(--accent); }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 54px; }

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04121d;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(56, 189, 248, 0.4); }

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

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 18px;
  max-width: 720px;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.stat:hover { border-color: var(--accent); transform: translateY(-3px); }

.stat-num {
  display: block;
  font-family: var(--mono);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label { font-size: 0.85rem; color: var(--text-dim); }

/* ---------- Sections ---------- */
.section { padding: 100px 0; }

.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.kicker {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 48px;
}

.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  margin-top: 10px;
  border-radius: 2px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.about-text p { color: var(--text-dim); margin-bottom: 16px; font-size: 0.99rem; }

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  position: sticky;
  top: 90px;
}

.about-card h3 { font-size: 1.05rem; margin-bottom: 18px; color: var(--text); }

.about-list { list-style: none; }

.about-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.9rem;
}

.about-list li:last-child { border-bottom: none; }

.li-label { color: var(--text-dim); flex-shrink: 0; }

.about-list li span:last-child { text-align: right; color: var(--text); }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.skill-cat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.25s, transform 0.25s;
}

.skill-cat:hover { border-color: var(--accent); transform: translateY(-3px); }

.skill-cat h3 { font-size: 1rem; margin-bottom: 16px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 5px 12px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(56, 189, 248, 0.2);
  color: var(--accent);
  transition: background 0.2s, transform 0.2s;
}

.chip:hover { background: rgba(56, 189, 248, 0.22); transform: translateY(-2px); }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--border) 60%);
}

.timeline-item { position: relative; margin-bottom: 34px; }

.timeline-marker {
  position: absolute;
  left: -30px; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.15);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  transition: border-color 0.25s, transform 0.25s;
}

.timeline-card:hover { border-color: var(--accent); transform: translateX(4px); }

.timeline-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.timeline-head h3 { font-size: 1.06rem; color: var(--text); }

.timeline-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  white-space: nowrap;
}

.timeline-company { font-size: 0.88rem; color: var(--text-dim); margin-bottom: 12px; }

.timeline-card ul { padding-left: 18px; }

.timeline-card li { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 6px; }

.timeline-card li::marker { color: var(--accent); }

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

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

.project-top { display: flex; justify-content: space-between; align-items: center; }

.project-icon { font-size: 1.6rem; }

.project-links { display: flex; gap: 10px; }

.project-links a {
  color: var(--text-dim);
  font-size: 1.05rem;
  text-decoration: none;
  transition: color 0.2s;
}

.project-links a:hover { color: var(--accent); }

.project-card h3 { font-size: 1.08rem; }

.project-card p { font-size: 0.9rem; color: var(--text-dim); flex-grow: 1; }

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.project-tags span {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
}

/* ---------- Blog ---------- */
.blog-sub {
  color: var(--text-dim);
  max-width: 620px;
  margin-bottom: 44px;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

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

.blog-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.blog-card h3 { font-size: 1.06rem; line-height: 1.4; }

.blog-card p { font-size: 0.9rem; color: var(--text-dim); flex-grow: 1; }

.blog-readmore {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--accent);
}

.projects-empty,
.blog-empty {
  color: var(--text-dim);
  font-style: italic;
  grid-column: 1 / -1;
  padding: 20px 0;
}

/* ---------- Certifications ---------- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color 0.25s, transform 0.25s;
}

.cert-card:hover { border-color: var(--accent); transform: translateY(-4px); }

.cert-icon { font-size: 1.5rem; display: block; margin-bottom: 12px; }

.cert-card h3 { font-size: 0.98rem; margin-bottom: 6px; }

.cert-issuer { font-size: 0.82rem; color: var(--text-dim); }

/* ---------- Contact ---------- */
.contact-sub {
  color: var(--text-dim);
  max-width: 520px;
  margin-bottom: 44px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.contact-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }

.contact-icon { font-size: 1.6rem; margin-bottom: 8px; }

.contact-card h3 { font-size: 1.02rem; }

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  font-family: var(--mono);
  word-break: break-all;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 34px 0;
  background: var(--bg-alt);
}

.footer-inner { text-align: center; color: var(--text-dim); font-size: 0.88rem; }

.footer-meta { font-family: var(--mono); font-size: 0.78rem; margin-top: 6px; color: #5a6b82; }

.heart { color: #f472b6; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: var(--navbar-bg-solid);
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    transform: translateY(calc(-100% - 68px));
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s;
    align-items: flex-start;
  }

  .nav-links.open { transform: none; visibility: visible; }

  .menu-toggle { display: flex; }

  .about-grid { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .skills-grid { grid-template-columns: 1fr; }
  .section { padding: 76px 0; }
  .hero { padding-top: 110px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}