:root {
  color-scheme: light;
  --cream: #f5f3ee;
  --white: #ffffff;
  --ink: #1c1b18;
  --ink-soft: #5a584f;
  --ink-muted: #a09e95;
  --ink-faint: #d8d5ce;
  --accent: #3a7bd5;
  --accent-light: #e8f0fc;
  --green: #2d7a4f;
  --green-light: #eaf6f0;
  --green-border: #b6dfc8;
  --blue-pikmin: #5bb8e8;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* ── SCROLL ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .badge-dot {
    animation: none;
  }
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245,243,238,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ink-faint);
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 58px;
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.2s;
}
.nav-hamburger:hover { background: rgba(0,0,0,0.05); }
.nav-hamburger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: 58px;
  left: 0;
  right: 0;
  background: rgba(245,243,238,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ink-faint);
  z-index: 99;
  padding: 8px 24px 20px;
  flex-direction: column;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-decoration: none;
  text-transform: uppercase;
  padding: 14px 0;
  border-bottom: 1px solid var(--ink-faint);
  transition: color 0.2s;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--ink); }

/* ── HERO ── */
#hero {
  max-width: 100%;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 80px 48px 60px;
  position: relative;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ink-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink-faint) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.25;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--green);
  background: var(--green-light);
  border: 1px solid var(--green-border);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  width: fit-content;
}
.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}
.hero-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 10px;
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}
.hero-sub {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 22px;
}
.hero-desc {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: 36px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--white);
  background: var(--ink);
  padding: 13px 26px;
  border-radius: 100px;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.15s;
}
.hero-cta:hover {
  background: #333;
  transform: translateY(-1px);
}
.hero-cta:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.hero-cta-arrow { transition: transform 0.2s; }
.hero-cta:hover .hero-cta-arrow { transform: translateX(3px); }

/* Hero right panel */
.hero-panel {
  background: var(--white);
  border: 1px solid var(--ink-faint);
  border-radius: 16px;
  padding: 28px 24px;
}
.panel-section { margin-bottom: 24px; }
.panel-section:last-child { margin-bottom: 0; }
.panel-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.chip-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--cream);
  border: 1px solid var(--ink-faint);
  padding: 5px 11px;
  border-radius: 6px;
  transition: border-color 0.2s, color 0.2s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.primary {
  background: var(--accent-light);
  border-color: #b8d0f5;
  color: var(--accent);
}

/* ── STATS ── */
.stats-bar {
  border-top: 1px solid var(--ink-faint);
  border-bottom: 1px solid var(--ink-faint);
  background: var(--white);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 28px 32px;
  border-right: 1px solid var(--ink-faint);
  transition: background 0.2s;
}
.stat:last-child { border-right: none; }
.stat:hover { background: var(--cream); }
.stat-num {
  font-family: 'DM Serif Display', serif;
  font-size: 28px;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

/* ── SECTION SHARED ── */
section {
  padding: 80px 48px;
  max-width: 1100px;
  margin: 0 auto;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 40px;
}
.section-eyebrow {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 32px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.section-count {
  font-size: 12px;
  color: var(--ink-muted);
}

/* ── PROJECTS ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.proj-card {
  background: var(--white);
  border: 1px solid var(--ink-faint);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.25s, transform 0.25s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.proj-card:hover {
  border-color: #c0bdb5;
  transform: translateY(-4px);
}
.proj-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.proj-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--cream);
}
.proj-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.proj-card:hover .proj-img img { transform: scale(1.04); }
.proj-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.proj-body { padding: 16px 18px 18px; }
.proj-tag {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.proj-name {
  font-family: 'DM Serif Display', serif;
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.25;
  overflow-wrap: break-word;
}
.proj-desc {
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.proj-card.featured { grid-column: span 2; }
.proj-card.featured .proj-img { height: 240px; }

/* ── SEMESTER SECTIONS ── */
.sem-eyebrow {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.sem-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.sem-card {
  background: var(--white);
  border: 1px solid var(--ink-faint);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.2s, transform 0.2s;
}
.sem-card:hover {
  border-color: #c0bdb5;
  transform: translateY(-2px);
}
.sem-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.sem-img {
  height: 160px;
  position: relative;
  overflow: hidden;
  background: var(--cream);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sem-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.sem-card:hover .sem-img img { transform: scale(1.04); }
.sem-img-count {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.04em;
}
.sem-body { padding: 12px 14px 14px; }
.sem-tag {
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 4px;
}
.sem-name {
  font-family: 'DM Serif Display', serif;
  font-size: 15px;
  color: var(--ink);
  line-height: 1.25;
  overflow-wrap: break-word;
}

/* ── EXPERIENCE ── */
#experiencia {
  max-width: 100%;
  background: var(--white);
  border-top: 1px solid var(--ink-faint);
  border-bottom: 1px solid var(--ink-faint);
  padding: 80px 0;
}
.exp-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}
.exp-list { display: flex; flex-direction: column; gap: 0; }
.exp-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1px solid var(--ink-faint);
  align-items: start;
}
.exp-item:last-child { border-bottom: none; }
.exp-date {
  font-size: 12px;
  color: var(--ink-muted);
  padding-top: 3px;
  letter-spacing: 0.02em;
}
.exp-company {
  font-family: 'DM Serif Display', serif;
  font-size: 19px;
  color: var(--ink);
  margin-bottom: 2px;
}
.exp-role {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.exp-bullets { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.exp-bullets li {
  font-size: 13px;
  color: var(--ink-soft);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}
.exp-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--ink-faint);
}

/* ── SKILLS ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.skill-group {
  background: var(--white);
  border: 1px solid var(--ink-faint);
  border-radius: 12px;
  padding: 20px 18px;
}
.skill-group-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 12px;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.skill-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 5px;
  font-weight: 400;
}
.st-bim { background: var(--accent-light); color: #185fa5; }
.st-design { background: var(--green-light); color: var(--green); }
.st-office { background: #f1eef8; color: #534ab7; }
.st-lang { background: #faeeda; color: #854f0b; }

/* ── SOBRE MÍ ── */
#sobre-mi { background: var(--cream); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.8;
}
.about-text p { margin-bottom: 16px; }
.about-edu { display: flex; flex-direction: column; gap: 12px; }
.edu-item {
  background: var(--white);
  border: 1px solid var(--ink-faint);
  border-radius: 10px;
  padding: 16px 18px;
}
.edu-school {
  font-family: 'DM Serif Display', serif;
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 2px;
}
.edu-degree {
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 4px;
}
.edu-years { font-size: 12px; color: var(--ink-muted); }

/* ── CONTACTO ── */
#contacto {
  max-width: 100%;
  background: var(--ink);
  color: var(--white);
  padding: 80px 48px;
}
.contacto-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.contacto-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.contacto-title em { font-style: italic; color: #7bb8f0; }
.contacto-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}
.contact-links { display: flex; flex-direction: column; gap: 12px; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 14px 18px;
  text-decoration: none;
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.contact-link:hover {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border-color: rgba(255,255,255,0.2);
}
.contact-link:focus-visible {
  outline: 2px solid rgba(255,255,255,0.5);
  outline-offset: 2px;
}
.contact-link-icon {
  width: 32px;
  height: 32px;
  border-radius: 7px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-link-icon svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: rgba(255,255,255,0.6);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── FOOTER ── */
footer {
  background: var(--ink);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-text {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
}
.pikmin-trigger {
  font-size: 16px;
  color: rgba(255,255,255,0.18);
  cursor: pointer;
  letter-spacing: 5px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color 0.3s;
  user-select: none;
  position: relative;
}
.pikmin-trigger:hover { color: rgba(91,184,232,0.6); }
.pikmin-float {
  position: absolute;
  bottom: 28px;
  right: 0;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.pikmin-float.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── LIGHTBOX ── */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  overscroll-behavior: contain;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  touch-action: pan-y pinch-zoom;
}
#lightbox.open {
  opacity: 1;
  pointer-events: auto;
}
.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lb-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.lb-close {
  position: fixed;
  top: 20px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  line-height: 1;
  z-index: 10;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.lb-close:hover { background: rgba(255,255,255,0.22); }
.lb-close:focus-visible { outline: 2px solid rgba(255,255,255,0.5); outline-offset: 2px; }
.lb-row {
  display: flex;
  align-items: center;
  gap: 16px;
}
.lb-img {
  max-width: 82vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
  display: block;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.lb-img.loaded { opacity: 1; }
.lb-prev, .lb-next {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  flex-shrink: 0;
  line-height: 1;
  z-index: 10;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(255,255,255,0.1);
}
.lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,0.22); }
.lb-prev:focus-visible, .lb-next:focus-visible { outline: 2px solid rgba(255,255,255,0.5); outline-offset: 2px; }
.lb-prev:disabled, .lb-next:disabled { opacity: 0.25; pointer-events: none; }
.lb-prev:active, .lb-next:active, .lb-close:active { background: rgba(255,255,255,0.35); transform: scale(0.95); }
.lb-dots {
  display: flex;
  gap: 8px;
  min-height: 12px;
}
.lb-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}
.lb-dot.active { background: #fff; transform: scale(1.35); }
.lb-dot:focus-visible { outline: 2px solid rgba(255,255,255,0.5); outline-offset: 3px; border-radius: 50%; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .nav-links { display: none; }
  /* Lightbox mobile optimizations */
  .lb-close {
    top: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    background: rgba(0,0,0,0.5);
  }
  .lb-prev, .lb-next {
    width: 48px;
    height: 48px;
    font-size: 24px;
  }
  .lb-row {
    gap: 8px;
    padding: 0 12px;
  }
  .lb-img {
    max-width: 78vw;
    max-height: 70vh;
  }
}
  .nav-hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel { display: none; }
  #hero { padding: 60px 24px 40px; }
  .stats-bar { grid-template-columns: repeat(2,1fr); }
  .stat { border-bottom: 1px solid var(--ink-faint); }
  section { padding: 60px 24px; }
  .projects-grid { grid-template-columns: 1fr; }
  .proj-card.featured { grid-column: span 1; }
  .exp-item { grid-template-columns: 1fr; gap: 8px; }
  .exp-inner { padding: 0 24px; }
  #experiencia { padding: 60px 0; }
  .sem-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .contacto-inner { grid-template-columns: 1fr; gap: 40px; }
  #contacto { padding: 60px 24px; }
  footer { padding: 16px 24px; }
}