:root {
    --navy: #0d1b2a;
    --navy2: #1a2d42;
    --green: #00e5a0;
    --green2: #00b87a;
    --white: #f0f4f8;
    --gray: #8fa3b8;
    --card: #162233;
    --border: rgba(0,229,160,0.15);
    --mono: 'Space Mono', monospace;
    --sans: 'Syne', sans-serif;
    --body: 'Inter', sans-serif;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--navy);
    color: var(--white);
    font-family: var(--body);
    overflow-x: hidden;
    cursor: none;
  }

  /* Custom cursor */
  .cursor {
    width: 12px; height: 12px;
    background: var(--green);
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease;
    mix-blend-mode: screen;
  }
  .cursor-ring {
    width: 36px; height: 36px;
    border: 1px solid rgba(0,229,160,0.4);
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.35s ease, width 0.2s, height 0.2s;
  }

  /* Noise overlay */
  body::before {
    content: '';
    position: fixed; 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; z-index: 0; opacity: 0.35;
  }

  /* NAV */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.2rem 4rem;
    background: rgba(13,27,42,0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
  }
  .nav-logo {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--green);
    letter-spacing: 0.1em;
  }
  .nav-links { display: flex; gap: 2rem; list-style: none; }
  .nav-links a {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--gray);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s;
  }
  .nav-links a:hover { color: var(--green); }

  /* HERO */
  #hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 8rem 4rem 4rem;
    position: relative;
    overflow: hidden;
  }

  .hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(0,229,160,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,229,160,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 40%, transparent 100%);
  }

  .hero-glow {
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,229,160,0.08) 0%, transparent 70%);
    top: 50%; left: 60%;
    transform: translate(-50%, -50%);
    pointer-events: none;
  }

  .hero-content { position: relative; z-index: 1; max-width: 800px; }

  .hero-tag {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--green);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
  }
  .hero-tag::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--green);
  }

  h1 {
    font-family: var(--sans);
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
  }

  h1 .name-line {
    display: block;
    background: linear-gradient(135deg, var(--white) 0%, var(--green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .hero-desc {
    font-size: 1.05rem;
    color: var(--gray);
    line-height: 1.7;
    max-width: 520px;
    margin-bottom: 2.5rem;
    font-weight: 300;
  }

  .hero-chips {
    display: flex; flex-wrap: wrap; gap: 0.6rem;
    margin-bottom: 3rem;
  }
  .chip {
    font-family: var(--mono);
    font-size: 0.7rem;
    padding: 0.35rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 2px;
    color: var(--green);
    letter-spacing: 0.06em;
    background: rgba(0,229,160,0.04);
    transition: background 0.2s, border-color 0.2s;
  }
  .chip:hover { background: rgba(0,229,160,0.1); border-color: var(--green); }

  .hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

  .btn-primary {
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: 0.8rem 1.8rem;
    background: var(--green);
    color: var(--navy);
    border: none;
    border-radius: 2px;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background 0.2s, transform 0.15s;
    cursor: none;
  }
  .btn-primary:hover { background: var(--green2); transform: translateY(-2px); }

  .btn-secondary {
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: 0.8rem 1.8rem;
    background: transparent;
    color: var(--green);
    border: 1px solid var(--green);
    border-radius: 2px;
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background 0.2s, transform 0.15s;
    cursor: none;
  }
  .btn-secondary:hover { background: rgba(0,229,160,0.08); transform: translateY(-2px); }

  .hero-scroll {
    position: absolute; bottom: 2.5rem; left: 4rem;
    display: flex; align-items: center; gap: 0.6rem;
    font-family: var(--mono); font-size: 0.68rem;
    color: var(--gray); letter-spacing: 0.12em; text-transform: uppercase;
    animation: fadeInUp 1.5s ease 0.8s both;
  }
  .scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, transparent, var(--green));
    animation: scrollPulse 2s ease infinite;
  }
  @keyframes scrollPulse {
    0%,100% { opacity: 0.4; } 50% { opacity: 1; }
  }

  /* SECTIONS */
  section {
    padding: 6rem 4rem;
    position: relative;
  }

  .section-header {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 3.5rem;
  }
  .section-num {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--green);
    letter-spacing: 0.1em;
  }
  .section-title {
    font-family: var(--sans);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  .section-line {
    flex: 1; height: 1px;
    background: linear-gradient(to right, var(--border), transparent);
  }

  /* SOBRE MI */
  .about-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
  }
  
  .about-profile {
    position: sticky;
    top: 8rem;
  }
  
  .profile-image {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 8px;
    border: 2px solid var(--border);
    box-shadow: 0 0 40px rgba(0,229,160,0.15);
    transition: border-color 0.2s, box-shadow 0.2s;
    object-fit: cover;
  }
  
  .profile-image:hover {
    border-color: var(--green);
    box-shadow: 0 0 50px rgba(0,229,160,0.25);
  }
  
  .about-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }
  
  .about-text p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    font-weight: 300;
  }
  .about-text p strong { color: var(--white); font-weight: 500; }

  .about-stats {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem;
    transition: border-color 0.2s, transform 0.2s;
  }
  .stat-card:hover { border-color: var(--green); transform: translateY(-3px); }
  .stat-num {
    font-family: var(--sans);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--green);
    line-height: 1;
    margin-bottom: 0.4rem;
  }
  .stat-label {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--gray);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* EXPERIENCIA */
  .exp-timeline { position: relative; }
  .exp-timeline::before {
    content: '';
    position: absolute; left: 0; top: 8px; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--green), transparent);
  }
  .exp-item {
    padding-left: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .exp-item.visible { opacity: 1; transform: translateX(0); }
  .exp-dot {
    position: absolute; left: -5px; top: 6px;
    width: 11px; height: 11px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(0,229,160,0.5);
  }
  .exp-meta {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 0.5rem; flex-wrap: wrap;
  }
  .exp-company {
    font-family: var(--sans);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
  }
  .exp-period {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--green);
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 2px;
    letter-spacing: 0.06em;
  }
  .exp-role {
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 1rem;
    font-style: italic;
  }
  .exp-bullets { list-style: none; }
  .exp-bullets li {
    font-size: 0.88rem;
    color: var(--gray);
    padding: 0.25rem 0;
    padding-left: 1.2rem;
    position: relative;
    font-weight: 300;
    line-height: 1.6;
  }
  .exp-bullets li::before {
    content: '▸';
    position: absolute; left: 0;
    color: var(--green);
    font-size: 0.7rem;
  }

  /* PROYECTOS */
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
  }
  .project-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.2s, box-shadow 0.2s;
  }
  .project-card.visible { opacity: 1; transform: translateY(0); }
  .project-card:hover {
    border-color: var(--green);
    box-shadow: 0 0 30px rgba(0,229,160,0.08);
  }
  .project-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(to right, var(--green), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
  }
  .project-card:hover::before { transform: scaleX(1); }

  .project-icon {
    font-size: 1.8rem;
    margin-bottom: 1rem;
  }
  .project-title {
    font-family: var(--sans);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--white);
  }
  .project-desc {
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.65;
    font-weight: 300;
    margin-bottom: 1.2rem;
  }
  .project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
  .project-tag {
    font-family: var(--mono);
    font-size: 0.62rem;
    padding: 0.2rem 0.5rem;
    background: rgba(0,229,160,0.06);
    border: 1px solid rgba(0,229,160,0.2);
    border-radius: 2px;
    color: var(--green);
    letter-spacing: 0.05em;
  }

  /* HABILIDADES */
  .skills-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .skill-group {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.8rem;
    transition: border-color 0.2s;
  }
  .skill-group:hover { border-color: rgba(0,229,160,0.4); }
  .skill-group-title {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--green);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
  }
  .skill-item {
    display: flex; align-items: center; gap: 0.6rem;
    margin-bottom: 0.6rem;
  }
  .skill-item span {
    font-size: 0.82rem;
    color: var(--gray);
    font-weight: 300;
  }
  .skill-dot {
    width: 5px; height: 5px;
    background: var(--green);
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.7;
  }

  /* FORMACIÓN */
  .edu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  .edu-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.8rem;
    transition: border-color 0.2s, transform 0.2s;
  }
  .edu-card:hover { border-color: var(--green); transform: translateY(-3px); }
  .edu-year {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--green);
    letter-spacing: 0.1em;
    margin-bottom: 0.6rem;
  }
  .edu-title {
    font-family: var(--sans);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--white);
  }
  .edu-place {
    font-size: 0.82rem;
    color: var(--gray);
    font-weight: 300;
  }

  /* PROYECCIÓN */
  .future-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
  }
  .future-box::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at top left, rgba(0,229,160,0.06) 0%, transparent 60%);
    pointer-events: none;
  }
  .future-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
  }
  .future-step { position: relative; }
  .step-num {
    font-family: var(--sans);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(0,229,160,0.15);
    line-height: 1;
    margin-bottom: 0.5rem;
  }
  .step-title {
    font-family: var(--sans);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--white);
  }
  .step-desc {
    font-size: 0.82rem;
    color: var(--gray);
    line-height: 1.6;
    font-weight: 300;
  }

  /* CONTACTO */
  #contacto {
    background: var(--card);
    border-top: 1px solid var(--border);
  }
  .contact-layout {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
  }
  .contact-text h2 {
    font-family: var(--sans);
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.8rem;
  }
  .contact-text p {
    color: var(--gray);
    font-size: 0.95rem;
    font-weight: 300;
    max-width: 400px;
    line-height: 1.7;
  }
  .contact-links { display: flex; flex-direction: column; gap: 1rem; }
  .contact-link {
    display: flex; align-items: center; gap: 1rem;
    text-decoration: none;
    color: var(--gray);
    font-size: 0.88rem;
    transition: color 0.2s;
    font-weight: 300;
  }
  .contact-link:hover { color: var(--green); }
  .contact-link-icon {
    width: 36px; height: 36px;
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    background: rgba(0,229,160,0.04);
    transition: border-color 0.2s, background 0.2s;
  }
  .contact-link:hover .contact-link-icon {
    border-color: var(--green);
    background: rgba(0,229,160,0.1);
  }

  /* FOOTER */
  footer {
    padding: 2rem 4rem;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
  }
  footer p {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--gray);
    letter-spacing: 0.06em;
  }
  footer span { color: var(--green); }

  /* ANIMATIONS */
  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .fade-in { animation: fadeInUp 0.7s ease both; }
  .delay-1 { animation-delay: 0.1s; }
  .delay-2 { animation-delay: 0.2s; }
  .delay-3 { animation-delay: 0.3s; }
  .delay-4 { animation-delay: 0.4s; }
  .delay-5 { animation-delay: 0.5s; }

  /* RESPONSIVE */
  @media (max-width: 768px) {
    nav { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    section { padding: 4rem 1.5rem; }
    #hero { padding: 7rem 1.5rem 3rem; }
    .hero-scroll { left: 1.5rem; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .about-profile { position: static; }
    .profile-image { max-width: 200px; }
    .skills-layout { grid-template-columns: 1fr; }
    .contact-layout { flex-direction: column; }
    footer { padding: 1.5rem; flex-direction: column; text-align: center; }
  }