/* ─── RESET & ROOT ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d0d0d;
  --bg-dim:    #111111;
  --bg-card:   #161616;
  --bg-card2:  #1a1a1a;
  --border:    rgba(255,255,255,0.08);
  --border-md: rgba(255,255,255,0.12);
  --text:      #e8e6e1;
  --text-2:    #9a9690;
  --text-3:    #5a5854;
  --accent:    #c8f080;       /* lime chartreuse */
  --accent-d:  #9cbd52;
  --warn:      #f0c040;
  --danger:    #f06060;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-mono:  'Geist Mono', 'Fira Code', monospace;
  --font-sans:  'Geist', system-ui, sans-serif;
  --max-w:     1100px;
  --nav-h:     60px;
}

html { scroll-behavior: smooth; }

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

/* ─── NAV ───────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 100;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--text-2);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-2);
  transition: transform 0.25s, opacity 0.25s;
}

.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(13,13,13,0.97);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 32px;
  gap: 20px;
  z-index: 99;
  transform: translateY(-110%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(12px);
}

.mobile-menu.open {
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── HERO ──────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 80px) 32px 80px;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.1s;
}

.dot-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.5s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(200,240,128,0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(200,240,128,0); }
}

.hero-name {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 0.95;
  margin-bottom: 24px;
}

.hero-name .line1 {
  display: block;
  font-size: clamp(56px, 8vw, 96px);
  color: var(--text);
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.2s;
}

.hero-name .line2 {
  display: block;
  font-size: clamp(56px, 8vw, 96px);
  color: var(--accent);
  font-style: italic;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.35s;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.5s;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 500px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.6s;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.75s;
}

.btn-primary {
  background: var(--accent);
  color: #0d0d0d;
  padding: 11px 24px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover { background: #b8e060; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  color: var(--text-2);
  border: 1px solid var(--border-md);
  padding: 11px 20px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s, border-color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-ghost:hover { color: var(--text); border-color: var(--border-md); }

.hero-scroll-hint {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 56px;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.9s;
}

.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-bar {
  width: 40px;
  height: 1px;
  background: var(--border-md);
  position: relative;
  overflow: hidden;
}

.scroll-bar::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: var(--accent);
  animation: scrollSlide 2.5s ease infinite 1.5s;
}

@keyframes scrollSlide {
  0%   { left: -100%; }
  50%  { left: 0; }
  100% { left: 100%; }
}

/* Photo */
.hero-photo-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  opacity: 0;
  animation: fadeIn 0.8s ease forwards 0.5s;
}

.hero-photo-frame {
  width: 300px;
  height: 360px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(20%) contrast(1.05);
  transition: filter 0.4s;
}

.hero-photo-frame:hover .hero-photo { filter: grayscale(0%) contrast(1); }

.photo-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  mix-blend-mode: overlay;
}

.hero-photo-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 20px;
}

/* ─── SECTIONS ──────────────────────────────────────────────── */
.section {
  padding: 100px 32px;
  border-top: 1px solid var(--border);
}

.section--dim { background: var(--bg-dim); }

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label span {
  color: var(--accent);
  font-size: 10px;
}

.section-heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 48px;
}

.section-heading em {
  color: var(--accent);
  font-style: italic;
}

/* ─── SOBRE MÍ ──────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 64px;
  align-items: start;
}

.about-text-col .section-heading { margin-bottom: 24px; }

.about-text-col p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-cards-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  transition: border-color 0.2s;
}

.about-card:hover { border-color: var(--border-md); }

.about-card-icon { font-size: 18px; flex-shrink: 0; line-height: 1; margin-top: 2px; }

.about-card-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}

.about-card-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  margin-top: 3px;
  letter-spacing: 0.05em;
}

/* ─── STACK ─────────────────────────────────────────────────── */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 48px;
}

.stack-group-title {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.stack-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 3px;
  letter-spacing: 0.03em;
  transition: color 0.2s, border-color 0.2s;
}

.pill:hover { color: var(--text); border-color: var(--border-md); }

.pill--accent {
  color: var(--accent);
  border-color: rgba(200,240,128,0.25);
  background: rgba(200,240,128,0.06);
}

/* ─── PROYECTOS ─────────────────────────────────────────────── */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 32px;
  transition: border-color 0.3s;
}

.project-card:hover { border-color: rgba(200,240,128,0.2); }

.project-card-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 0;
}

.project-left {
  padding: 40px;
  border-right: 1px solid var(--border);
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.project-year {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.1em;
}

.project-status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  background: rgba(200,240,128,0.08);
  border: 1px solid rgba(200,240,128,0.2);
  padding: 2px 10px;
  border-radius: 3px;
}

.project-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 36px;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.1;
}

.project-subtitle {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 20px;
}

.project-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 12px;
}

.project-highlights {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 24px 0;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.highlight-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.highlight-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  margin-top: 2px;
}

.highlight-item span:last-child {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

.project-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  background: var(--bg-card2);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

.btn-project {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0d0d0d;
  padding: 10px 20px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: background 0.2s, transform 0.15s;
}

.btn-project:hover { background: #b8e060; transform: translateY(-1px); }

/* Project visual panel */
.project-right {
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-dim);
}

.project-visual { position: relative; width: 100%; }

.visual-card {
  background: var(--bg);
  border: 1px solid var(--border-md);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
}

.visual-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-card2);
  border-bottom: 1px solid var(--border);
}

.visual-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.visual-dot--green  { background: #3dd68c; }
.visual-dot--amber  { background: #f0c040; }
.visual-dot--red    { background: #f06060; }

.visual-title {
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.08em;
  margin-left: 6px;
}

.visual-body { padding: 16px; }

.visual-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

.visual-metric:last-of-type { border-bottom: none; }

.vm-label { color: var(--text-3); letter-spacing: 0.06em; }
.vm-value { font-weight: 500; letter-spacing: 0.04em; }
.vm-value--ok   { color: #3dd68c; }
.vm-value--warn { color: var(--warn); }
.vm-value--crit { color: var(--danger); animation: blink-text 2s infinite; }

@keyframes blink-text {
  0%, 90%, 100% { opacity: 1; }
  50%            { opacity: 0.5; }
}

.visual-chart {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 60px;
  margin-bottom: 6px;
}

.bar {
  flex: 1;
  background: rgba(200,240,128,0.15);
  border-radius: 2px 2px 0 0;
  transition: background 0.3s;
}

.bar--active { background: var(--accent); }
.chart-bars .bar:last-child { background: var(--danger); opacity: 0.8; }

.chart-label {
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-align: right;
}

.visual-alert {
  margin-top: 12px;
  padding: 8px 10px;
  background: rgba(240,96,96,0.08);
  border: 1px solid rgba(240,96,96,0.2);
  border-radius: 4px;
  font-size: 11px;
  color: var(--danger);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.04em;
}

.alert-blink {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--danger);
  flex-shrink: 0;
  animation: pulse-red 1.5s infinite;
}

@keyframes pulse-red {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.visual-badge-iot {
  position: absolute;
  bottom: -14px;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--bg);
  border: 1px solid rgba(200,240,128,0.25);
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.08em;
}

.projects-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  padding: 20px 0 0;
  border-top: 1px solid var(--border);
}

.projects-more p {
  font-size: 14px;
  color: var(--text-3);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ─── CONTACTO ──────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: start;
}

.contact-left .section-heading { margin-bottom: 20px; }

.contact-desc {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 28px;
}

.contact-email-link {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(200,240,128,0.3);
  padding-bottom: 2px;
  transition: border-color 0.2s;
}

.contact-email-link:hover { border-color: var(--accent); }

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
}

.contact-link:hover { border-color: var(--border-md); background: var(--bg-card2); }

.cl-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  flex-shrink: 0;
}

.cl-text { flex: 1; }
.cl-name { font-size: 13px; font-weight: 500; color: var(--text); }
.cl-handle { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); margin-top: 2px; }
.cl-arrow { font-size: 16px; color: var(--text-3); transition: color 0.2s, transform 0.2s; }
.contact-link:hover .cl-arrow { color: var(--accent); transform: translate(2px,-2px); }

/* ─── FOOTER ────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 32px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-inner span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.05em;
}

/* ─── ANIMATIONS ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: calc(var(--nav-h) + 60px);
  }
  .hero-photo-col { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card-inner { grid-template-columns: 1fr; }
  .project-right { border-right: none; border-top: 1px solid var(--border); }
  .project-left { border-right: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}

@media (max-width: 600px) {
  .section { padding: 72px 20px; }
  .hero { padding: calc(var(--nav-h) + 40px) 20px 60px; }
  .nav { padding: 0 20px; }
  .stack-grid { grid-template-columns: 1fr; }
  .project-left { padding: 24px; }
  .projects-more { flex-direction: column; align-items: flex-start; }
  .footer { padding: 24px 20px; }
}