:root {
      --bg: #0f172a;
      --card: #111827;
      --accent: #38bdf8;
      --accent-2: #8b5cf6;
      --text: #e5e7eb;
      --muted: #94a3b8;
      --border: #1f2937;
      --shadow: 0 15px 35px rgba(0,0,0,0.35);
      --radius: 14px;
      --transition: 200ms ease;
      scroll-behavior: smooth;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: "Inter", system-ui, -apple-system, sans-serif;
      background: radial-gradient(circle at 20% 20%, rgba(56,189,248,0.12), transparent 25%),
                  radial-gradient(circle at 80% 0%, rgba(139,92,246,0.12), transparent 25%),
                  var(--bg);
      color: var(--text);
      line-height: 1.6;
      min-height: 100vh;
      overflow-x: hidden;
    }
    a { color: var(--accent); text-decoration: none; }
    a:hover { color: #67e8f9; }

    /* ── HEADER ── */
    header {
      position: sticky;
      top: 0; z-index: 10;
      backdrop-filter: blur(10px);
      background: rgba(15,23,42,0.75);
      border-bottom: 1px solid var(--border);
    }
    .nav {
      max-width: 1100px; margin: 0 auto; padding: 14px 24px;
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .brand { display: flex; align-items: center; }
    .brand .logo {
      display: flex; flex-direction: column;
      align-items: flex-start; justify-content: center;
      gap: 1px; padding: 7px 14px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #0b1220; box-shadow: var(--shadow);
      line-height: 1.2;
    }
    .brand .logo-name {
      font-weight: 600; font-size: 0.88rem;
      white-space: nowrap; letter-spacing: -0.2px;
    }
    .brand .logo-role {
      font-size: 0.72rem; font-weight: 500;
      opacity: 0.65; letter-spacing: 0.3px;
    }
    nav ul { list-style: none; display: flex; gap: 18px; }
    nav li a {
      padding: 8px 12px; border-radius: 10px;
      color: var(--muted);
      transition: background var(--transition), color var(--transition);
    }
    nav li a:hover { background: var(--border); color: #fff; }

    /* ── HERO ── */
    .hero {
      max-width: 1100px; margin: 48px auto; padding: 24px;
      display: grid; gap: 28px; align-items: center;
      grid-template-columns: 1fr 320px;
    }
    .hero-text h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); margin-bottom: 14px; }
    .hero-text p { color: var(--muted); max-width: 580px; text-align: justify; }
    .hero-cta { margin-top: 18px; display: flex; gap: 12px; flex-wrap: wrap; }
    .btn {
      border: 1px solid var(--border); background: var(--card); color: var(--text);
      padding: 12px 16px; border-radius: 12px; cursor: pointer;
      display: inline-flex; align-items: center; gap: 8px;
      transition: transform 150ms ease, box-shadow var(--transition), border-color var(--transition);
    }
    .btn:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); color: var(--text); }
    .btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #0b1220; border: none; }
    .btn.primary:hover { color: #0b1220; }
    .btn.cv {
      border-color: rgba(139,92,246,0.5);
      background: rgba(139,92,246,0.08);
      color: #c4b5fd;
    }
    .btn.cv:hover { border-color: var(--accent-2); background: rgba(139,92,246,0.18); color: #ddd6fe; }

    .badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
    .badge {
      padding: 6px 12px; border-radius: 20px; background: rgba(56,189,248,0.12);
      color: #ccecff; font-size: 0.9rem; border: 1px solid rgba(56,189,248,0.25);
    }

    /* ── FOTO HERO ── */
    .hero-foto {
      background: var(--card); border: 1px solid var(--border);
      border-radius: var(--radius); box-shadow: var(--shadow);
      overflow: hidden; height: 380px;
      display: flex; align-items: center; justify-content: center;
    }
    .hero-foto img {
      width: 100%; height: 100%;
      object-fit: cover; object-position: top;
      display: block;
    }

    /* ── SECCIONES ── */
    section { padding: 32px 24px 12px; }
    .section-title {
      max-width: 1100px; margin: 0 auto 10px; display: flex; align-items: baseline; gap: 12px;
    }
    .section-title h2 { font-size: 1.4rem; }
    .section-title span { color: var(--muted); font-size: 0.95rem; }

    .projects, .about, .contact { max-width: 1100px; margin: 0 auto; }

    /* ── PROYECTOS ── */
    .project-grid {
      display: grid; gap: 18px; margin-top: 12px;
      grid-template-columns: repeat(3, 1fr);
    }
    .card-hidden { display: none; }
    .btn-see-more {
      display: block; margin: 20px auto 0;
      padding: 10px 28px; border-radius: 12px;
      border: 1px solid var(--accent); background: transparent;
      color: var(--accent); font-size: 0.95rem; cursor: pointer;
      transition: background var(--transition), color var(--transition);
    }
    .btn-see-more:hover { background: rgba(56,189,248,0.1); }
    .card {
      background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 18px; box-shadow: var(--shadow);
      transition: transform 160ms ease, border-color var(--transition);
      opacity: 0; transform: translateY(16px);
    }
    .card.show { opacity: 1; transform: translateY(0); transition: all 450ms ease; }
    .card h3 { margin-bottom: 8px; }
    .card p { color: var(--muted); margin-bottom: 12px; }
    .tag-row { display: flex; gap: 8px; flex-wrap: wrap; }
    .tag { padding: 4px 10px; border-radius: 999px; background: rgba(139,92,246,0.14); color: #d8c8ff; font-size: 0.85rem; }

    /* ── SOBRE MÍ ── */
    .about-content {
      display: grid; gap: 18px; margin-top: 12px;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .about-box {
      padding: 18px; border-radius: var(--radius);
      background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow);
    }
    .about-box h3 { margin-bottom: 10px; color: var(--accent); font-size: 0.95rem; letter-spacing: 0.3px; }
    .about-box p { color: var(--muted); font-size: 0.95rem; line-height: 1.7; text-align: justify;}
    .about-box p + p { margin-top: 10px; }
    .about-box .badge-container { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

    /* ── EXPERIENCIA ── */
    .experience-item { margin-bottom: 14px; }
    .experience-item:last-child { margin-bottom: 0; }
    .experience-header { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
    .experience-title { font-weight: 600; color: var(--text); font-size: 0.95rem; }
    .experience-date { color: var(--muted); font-size: 0.82rem; white-space: nowrap; }
    .experience-place { color: var(--muted); font-size: 0.88rem; }

    /* ── SKILLS BOX (ancho completo) ── */
    .skills-box {
      padding: 18px; border-radius: var(--radius);
      background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow);
      margin-top: 18px;
    }
    .skills-box h3 { margin-bottom: 6px; color: var(--accent); font-size: 0.95rem; letter-spacing: 0.3px; }
    .skills-box .badge-container { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
    .badge-category-title {
      font-size: 0.78rem; font-weight: 600; letter-spacing: 0.5px;
      color: var(--accent); text-transform: uppercase;
      margin-top: 14px; margin-bottom: 0;
    }
    .skills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
    .skills span { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--border); }

    /* ── CONTACTO ── */
    .contact-grid {
      display: grid; gap: 18px; margin-top: 12px;
      grid-template-columns: 2fr 1fr; /* form más grande, socials más pequeño */
      align-items: start;             /* recuadro derecho se ajusta al contenido */
    }
    form { display: grid; gap: 12px; }
    label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; }
    input, textarea {
      padding: 12px; border-radius: 12px; border: 1px solid var(--border);
      background: #0b1220; color: var(--text); font-size: 1rem;
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.2); }
    textarea { min-height: 140px; resize: vertical; }
    .error { color: #fca5a5; font-size: 0.9rem; display: none; }
    
    .form-success-msg {
      padding: 14px; margin-top: 10px; border-radius: 12px;
      background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.3);
      color: #34d399; font-size: 0.95rem; text-align: center; font-weight: 500;
    }

    /* ── SOCIALS con iconos ── */
    .socials { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
    .socials a {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border);
      background: var(--card); color: var(--text); font-size: 0.9rem;
      transition: border-color var(--transition), transform 150ms ease, background var(--transition);
    }
    .socials a:hover { transform: translateX(3px); color: var(--text); }
    .socials a.linkedin:hover { border-color: #0a66c2; background: rgba(10,102,194,0.1); }
    .socials a.github:hover  { border-color: #e6edf3; background: rgba(230,237,243,0.07); }
    .socials a.email:hover   { border-color: var(--accent); background: rgba(56,189,248,0.08); }
    .socials svg { flex-shrink: 0; }

    /* ── RECUADRO SOCIALS compacto ── */
    .contact-socials {
      padding: 18px; border-radius: var(--radius);
      background: var(--card); border: 1px solid var(--border);
      box-shadow: var(--shadow);
      height: fit-content; /* <-- hace que no se estire */
    }
    .contact-socials h3 { color: var(--accent); font-size: 0.95rem; margin-bottom: 6px; }
    .contact-socials p  { color: var(--muted); font-size: 0.88rem; margin-bottom: 4px; }

    .btn.btn-sm, .btn-sm {
      padding: 7px 13px; font-size: 0.85rem; border-radius: 10px;
      border: 1px solid var(--border); background: var(--card); color: var(--text);
      display: inline-flex; align-items: center; gap: 6px;
      transition: transform 150ms ease, border-color var(--transition);
    }
    .btn-sm:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text); }

    footer { text-align: center; padding: 20px; color: var(--muted); }

    @media (max-width: 820px) {
      .hero { grid-template-columns: 1fr; }
      .hero-foto { height: auto; }
      .hero-foto img { object-fit: contain; background: var(--card); }
      .nav { flex-direction: column; align-items: flex-start; }
      nav ul { flex-wrap: wrap; }
      .contact-grid { grid-template-columns: 1fr; }
      .project-grid { grid-template-columns: 1fr; }
    }