:root{
  --bg: #0b0b0f;
  --surface: #12121a;
  --text: #e7e7ee;
  --muted: #a0a0b3;
  --accent: #7c5cff;
  --accent-2: #4cc9f0;
  --border: #262636;
  --ring: #a78bfa;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --radius: 16px;
  --maxw: 1100px;

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;

  --fs-1: .875rem;
  --fs-2: 1rem;
  --fs-3: 1.125rem;
  --fs-4: 1.375rem;
  --fs-5: 1.75rem;
  --fs-6: clamp(2rem, 3vw + 1rem, 3rem);
}

[data-theme="light"] {
  --bg: #f7f7fb;
  --surface: #ffffff;
  --text: #0d0d12;
  --muted: #4a4a5c;
  --border: #e6e6f2;
  --shadow: 0 8px 20px rgba(0,0,0,.08);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f7fb;
    --surface: #ffffff;
    --text: #0d0d12;
    --muted: #4a4a5c;
    --border: #e6e6f2;
    --shadow: 0 8px 20px rgba(0,0,0,.08);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--fs-2)/1.6 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  transition: background-color 0.3s ease, color 0.2s ease;
}

img{ max-width:100%; height:auto; display:block; }
a{ color: var(--text); text-decoration: none; transition: opacity 0.2s ease; }
a:hover{ text-decoration: underline; }

.container{ width: min(100% - 2rem, var(--maxw)); margin-inline: auto; }
.section{ padding: var(--space-7) 0; }
.section--alt{ background: linear-gradient(180deg, transparent, rgba(124, 92, 255, 0.02)); }

.section__header{ 
  display:flex; 
  justify-content: space-between; 
  align-items: center; 
  gap: var(--space-4); 
  flex-wrap: wrap; 
  margin-bottom: var(--space-5);
}

#resume-link {
  display:flex; 
  gap:.5rem; 
  flex-wrap: wrap; 
}
#resume-link a{ 
  border:1px solid var(--border); 
  border-radius: 999px; 
  padding: .35rem .8rem; 
  font-size: var(--fs-1); 
  opacity:.85;
  transition: all 0.2s ease;
}

#resume-link:hover {
  opacity:1; 
  background: var(--surface);
  border-color: var(--accent);
  transform: translateY(-2px);
}


.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link{
  position:absolute; 
  left:-999px; 
  top:auto; 
  width:1px; 
  height:1px; 
  overflow:hidden;
}
.skip-link:focus{ 
  left: var(--space-4); 
  top: var(--space-4); 
  width:auto; 
  height:auto; 
  background: var(--surface); 
  padding: var(--space-2) var(--space-3); 
  border-radius: 8px; 
  border:1px solid var(--border); 
  z-index: 100;
}

.site-header{
  position: sticky; 
  top:0; 
  z-index: 50;
  background: color-mix(in oklab, var(--bg), transparent 20%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner{ 
  display:flex; 
  align-items:center; 
  justify-content: space-between; 
  padding: var(--space-3) 0; 
  gap: var(--space-4); 
}

.brand{ 
  display:flex; 
  align-items:center; 
  gap: var(--space-3); 
  flex-shrink: 0;
}

.brand__logo{
  width: 44px; 
  height: 44px; 
  border-radius: 50%; 
  display:grid; 
  place-content:center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color:white; 
  font-weight:700; 
  box-shadow: var(--shadow);
  font-size: var(--fs-4);
}

.brand__meta{ 
  display:flex; 
  flex-direction:column; 
  line-height: 1.3;
}

.brand__meta strong {
  font-size: var(--fs-3);
}

.brand__meta .muted {
  font-size: var(--fs-1);
}

.nav{ 
  display:flex; 
  align-items:center; 
  gap: var(--space-4); 
}

.nav a{ 
  opacity:.85; 
  font-weight: 500;
  position: relative;
}

.nav a:hover{ 
  opacity:1; 
  text-decoration: none;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s ease;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  flex-direction: column;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: var(--space-5);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
    backdrop-filter: blur(12px);
    background: color-mix(in oklab, var(--surface), transparent 10%);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav a {
    width: 100%;
    text-align: center;
    padding: var(--space-2);
  }

  .nav a::after {
    display: none;
  }
}

.hero{ 
  padding-top: var(--space-7); 
  padding-bottom: var(--space-7);
}

.grid-2{ 
  display:grid; 
  grid-template-columns: 1.2fr .8fr; 
  gap: var(--space-6); 
  align-items: center; 
}

@media (max-width: 900px){ 
  .grid-2{ 
    grid-template-columns: 1fr; 
    gap: var(--space-5);
  } 
}

.hero__title{ 
  font-size: var(--fs-6); 
  line-height: 1.2; 
  margin: 0 0 var(--space-4) 0; 
  font-weight: 700;
}

.hero__subtitle{ 
  font-size: var(--fs-3); 
  color: var(--muted); 
  margin: 0 0 var(--space-5) 0; 
  font-weight: 400;
}

.accent{ 
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); 
  -webkit-background-clip: text; 
  background-clip: text; 
  color: transparent; 
  display: inline-block;
}

.hero__card{ 
  padding: var(--space-5); 
  display:flex; 
  flex-direction:column; 
  gap: var(--space-4); 
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero__img{ 
  border-radius: var(--radius); 
  border:1px solid var(--border); 
  box-shadow: var(--shadow);
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1/1;
}

.actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.card{
  background: var(--surface); 
  border: 1px solid var(--border); 
  border-radius: var(--radius); 
  box-shadow: var(--shadow);
}

.muted{ color: var(--muted); }
.small{ font-size: var(--fs-1); }

.list-inline{ 
  display:flex; 
  gap: var(--space-3); 
  padding:0; 
  margin:0; 
  list-style:none; 
  flex-wrap: wrap; 
}

.list-badges{ 
  display:flex; 
  gap: var(--space-2); 
  flex-wrap: wrap; 
  padding:0; 
  margin:var(--space-4) 0 0 0; 
  list-style:none; 
}

.badge{ 
  border:1px solid var(--border); 
  padding: .25rem .5rem; 
  border-radius: 999px; 
  font-size: var(--fs-1); 
  background: color-mix(in oklab, var(--surface), #fff 4%); 
}

.btn{
  display:inline-flex; 
  align-items:center; 
  justify-content:center; 
  gap:.5rem;
  padding: .65rem 1.25rem; 
  border-radius: 12px; 
  border:1px solid var(--border); 
  background: var(--text); 
  color: var(--bg);
  font-weight: 600; 
  text-decoration:none; 
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
  font-size: var(--fs-2);
}

.btn:hover{ 
  transform: translateY(-2px); 
  box-shadow: 0 15px 30px rgba(0,0,0,0.15);
  text-decoration: none;
}

.btn:active{ 
  transform: translateY(0); 
}

.btn--ghost{ 
  background: transparent; 
  color: var(--text); 
  border:1px solid var(--border); 
  box-shadow:none; 
}

.btn--ghost:hover {
  background: color-mix(in oklab, var(--surface), #fff 5%);
}

.btn--small {
  padding: .4rem .8rem;
  font-size: var(--fs-1);
}

.skills-grid{ 
  display:grid; 
  grid-template-columns: repeat(5, 1fr); 
  gap: var(--space-4); 
}

@media (max-width: 1000px){ 
  .skills-grid{ 
    grid-template-columns: repeat(3, 1fr); 
  } 
}

@media (max-width: 700px){ 
  .skills-grid{ 
    grid-template-columns: repeat(2, 1fr); 
  } 
}

.skill{
  padding: var(--space-4); 
  border:1px solid var(--border); 
  border-radius: 14px; 
  background: var(--surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.skill__name{ 
  font-weight:600; 
  margin-bottom: var(--space-1);
}

.skill__level{ 
  font-size: var(--fs-1); 
  color: var(--muted); 
}

.projects-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.tab-btn {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 30px;
  cursor: pointer;
  font-size: var(--fs-2);
  transition: all 0.2s ease;
}

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

.tab-btn.active {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: white;
  border-color: transparent;
}

.projects-grid{ 
  display:grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: var(--space-5); 
}

@media (max-width: 1000px){ 
  .projects-grid{ 
    grid-template-columns: repeat(2, 1fr); 
  } 
}

@media (max-width: 700px){ 
  .projects-grid{ 
    grid-template-columns: 1fr; 
  } 
}

.project{
  display:flex; 
  flex-direction:column; 
  gap: 0;
  border:1px solid var(--border); 
  border-radius: 16px; 
  overflow:hidden; 
  background: var(--surface);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  border-color: var(--accent);
}

.project__media{ 
  aspect-ratio: 16/10; 
  background: linear-gradient(145deg, #1a1a2a, #0d0d16);
  display:grid; 
  place-items:center; 
  border-bottom:1px solid var(--border); 
  overflow: hidden;
}

.project__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project:hover .project__media img {
  transform: scale(1.05);
}

.project__body{ 
  padding: var(--space-4); 
  display:flex; 
  flex-direction:column; 
  gap: var(--space-3); 
}

.project__title{ 
  margin: 0; 
  font-size: var(--fs-4); 
  font-weight: 600;
}

.project__desc{ 
  margin:0; 
  color: var(--muted); 
  font-size: var(--fs-2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project__meta{ 
  display:flex; 
  justify-content: space-between; 
  align-items:center; 
  gap: var(--space-3); 
  margin-top: var(--space-2);
}

.tags{ 
  display:flex; 
  gap:.5rem; 
  flex-wrap:wrap; 
}

.tag{ 
  font-size: var(--fs-1); 
  padding:.25rem .5rem; 
  border:1px dashed var(--border); 
  border-radius: 999px; 
  color: var(--muted); 
  background: color-mix(in oklab, var(--surface), #fff 2%);
}

.project__links{ 
  display:flex; 
  gap:.5rem; 
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-top: var(--space-4);
}

.about-text {
  font-size: var(--fs-3);
  line-height: 1.6;
  color: var(--text);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.stat-number {
  display: block;
  font-size: var(--fs-5);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--fs-1);
  color: var(--muted);
}

@media (max-width: 700px) {
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.timeline{ 
  list-style:none; 
  padding:0; 
  margin:0; 
  display:grid; 
  gap: var(--space-5); 
}

.timeline li{
  display:grid; 
  gap:.4rem; 
  border-left: 3px solid var(--accent); 
  padding-left: var(--space-4);
  transition: transform 0.2s ease;
}

.timeline li:hover {
  transform: translateX(4px);
}

.timeline time{ 
  font-size: var(--fs-1); 
  color: var(--muted); 
  font-weight: 500;
}

.timeline strong{ 
  font-size: var(--fs-3); 
  color: var(--text);
}

.form{ 
  max-width: 700px; 
  margin-top: var(--space-5);
}

.form__row{ 
  display:flex; 
  flex-direction:column; 
  gap:.4rem; 
  margin-bottom: var(--space-4); 
}

.form__row label {
  font-weight: 500;
  font-size: var(--fs-2);
}

input, textarea, select{
  background: var(--surface); 
  color: var(--text);
  border:1px solid var(--border); 
  border-radius: 10px; 
  padding:.75rem 1rem; 
  outline: none;
  font-family: inherit;
  font-size: var(--fs-2);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus, select:focus{ 
  border-color: var(--ring); 
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--ring), transparent 80%); 
}

.form__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.site-footer{ 
  border-top:1px solid var(--border); 
  padding: var(--space-5) 0; 
  margin-top: var(--space-7);
}

.footer__inner{ 
  display:flex; 
  align-items:center; 
  justify-content: space-between; 
  gap: var(--space-4); 
  flex-wrap: wrap; 
}

.reveal{ 
  opacity:0; 
  transform: translateY(20px); 
  transition: opacity 0.6s cubic-bezier(0.2, 0.9, 0.3, 1), transform 0.6s cubic-bezier(0.2, 0.9, 0.3, 1); 
}

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

.socials{ 
  display:flex; 
  gap:.5rem; 
  flex-wrap: wrap; 
}

.socials a{ 
  border:1px solid var(--border); 
  border-radius: 999px; 
  padding: .35rem .8rem; 
  font-size: var(--fs-1); 
  opacity:.85;
  transition: all 0.2s ease;
}

.socials a:hover{ 
  opacity:1; 
  background: var(--surface);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.filter-select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: .5rem 2rem .5rem 1rem;
  font-size: var(--fs-2);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 16px;
}

.footer-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.noscript-warning {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--accent);
  color: white;
  text-align: center;
  padding: var(--space-3);
  z-index: 100;
}

/* Página de fotografía */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.photo-item {
  aspect-ratio: 1/1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.photo-item:hover img {
  transform: scale(1.1);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  margin: var(--space-5) 0;
}

.video-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.video-thumb {
  aspect-ratio: 16/9;
  background: #1a1a2a;
  position: relative;
  cursor: pointer;
}

.video-thumb::after {
  content: '▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  background: rgba(124, 92, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-thumb:hover::after {
  opacity: 1;
}

.video-info {
  padding: var(--space-3);
}

@media (max-width: 800px) {
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .video-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 500px) {
  .photo-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce){
  * { 
    transition: none !important; 
    animation: none !important; 
    scroll-behavior: auto !important;
  }
}