:root {
  --bg: #05070a;
  --bg-elevated: #0d1218;
  --text: #eef2f6;
  --text-dim: #9aa7b5;
  --accent: #00d9c0;
  --accent-glow: rgba(0, 217, 192, 0.35);
  --border: rgba(255, 255, 255, 0.08);
  --sans-font: 'Space Grotesk', system-ui, sans-serif;
  --mono-font: 'JetBrains Mono', ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans-font);
  line-height: 1.6;
  overflow-x: hidden;
}

.eyebrow {
  font-family: var(--mono-font);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}

.center { text-align: center; }

h1, h2, h3 { font-weight: 600; line-height: 1.2; }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 2.5rem; }

.gradient-text {
  background: linear-gradient(120deg, var(--accent), #6ee7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.accent { color: var(--accent); }

.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--sans-font);
  font-size: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn--glow {
  background: var(--accent);
  color: #05070a;
  box-shadow: 0 0 24px var(--accent-glow);
}
.btn--glow:hover { transform: translateY(-2px); box-shadow: 0 0 32px var(--accent-glow); }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--full { width: 100%; text-align: center; border: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(5, 7, 10, 0.7);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  position: relative;
  max-width: 1200px; margin: 0 auto; padding: 1rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__cv-btn {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  padding: 0.4rem 1.1rem; border-radius: 999px; border: 1px solid var(--accent);
  color: var(--accent); text-decoration: none; font-size: 0.85rem; font-weight: 600;
  white-space: nowrap; transition: background 0.2s, color 0.2s;
}
.nav__cv-btn:hover { background: var(--accent); color: #05070a; }
.nav__brand { display: flex; align-items: center; gap: 0.5rem; font-family: var(--mono-font); font-weight: 700; font-size: 1.25rem; color: var(--text); text-decoration: none; }
.nav__brand-logo { width: 1em; height: 1em; }
.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a { color: var(--text-dim); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav__links a:hover { color: var(--text); }
.nav__cta { color: var(--accent) !important; }
.nav__burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.nav__burger span { width: 22px; height: 2px; background: var(--text); }

/* HERO */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: 6rem 1.5rem 4rem;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}
.hero__glow {
  position: absolute; top: 20%; left: 50%; transform: translateX(-50%);
  width: 60vw; height: 60vw; max-width: 700px; max-height: 700px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  filter: blur(40px); pointer-events: none;
}
.hero__content { position: relative; max-width: 700px; }
.hero__title { font-size: clamp(3rem, 10vw, 6rem); }
.hero__suffix {
  font-family: var(--mono-font); color: var(--text-dim); font-size: 1rem;
  letter-spacing: 0.3em; text-transform: uppercase; margin-top: -0.5rem;
}
.hero__text { color: var(--text-dim); font-size: 1.15rem; margin: 1.5rem 0 2rem; }
.hero__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero__scroll { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); }
.hero__scroll span {
  display: block; width: 1px; height: 40px;
  background: linear-gradient(var(--accent), transparent);
}

/* SERVICIOS */
.services, .portfolio, .about, .contact { max-width: 1200px; margin: 0 auto; padding: 6rem 1.5rem; }
.services__intro { color: var(--text-dim); max-width: 560px; margin: -1.5rem auto 3rem; }
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.service-card {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px;
  padding: 2.5rem; transition: border-color 0.2s, transform 0.2s;
}
.service-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.service-card__icon { font-family: var(--mono-font); color: var(--accent); font-size: 1.5rem; }
.service-card h3 { font-size: 1.4rem; margin: 1rem 0; }
.service-card p { color: var(--text-dim); margin-bottom: 1rem; }
.service-card__list { list-style: none; color: var(--text-dim); margin-bottom: 1.5rem; }
.service-card__list li { padding: 0.3rem 0; border-bottom: 1px solid var(--border); }
.service-card__link { color: var(--accent); text-decoration: none; font-weight: 600; }

/* PORTAFOLIO */
.portfolio__intro { color: var(--text-dim); max-width: 500px; margin: 0 auto 3rem; }
.portfolio__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.portfolio-card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.portfolio-card__placeholder {
  height: 160px; display: flex; align-items: center; justify-content: center;
  background: repeating-linear-gradient(45deg, var(--bg), var(--bg) 10px, var(--bg-elevated) 10px, var(--bg-elevated) 20px);
  color: var(--text-dim); font-family: var(--mono-font); font-size: 0.85rem;
}
.portfolio-card__body { padding: 1.5rem; }
.portfolio-card__body h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.portfolio-card__body p { color: var(--text-dim); font-size: 0.9rem; }

/* CLIENTES */
.clients { max-width: 1200px; margin: 0 auto; padding: 6rem 1.5rem; }
.clients__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 2rem; }
.client-card {
  display: flex; gap: 1.5rem;
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px;
  padding: 2rem; transition: border-color 0.2s, transform 0.2s;
}
.client-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.client-card__logo { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.client-card__body h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
.client-card__desc { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 1rem; }
.client-card__quote {
  font-style: italic; color: var(--text); font-size: 0.92rem; line-height: 1.5;
  border-left: 2px solid var(--accent); padding-left: 0.9rem; margin-bottom: 0.6rem;
}
.client-card__author { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 1rem; }
.client-card__link { color: var(--accent); text-decoration: none; font-weight: 600; font-size: 0.9rem; }

/* SOBRE MI — acento ciberseguridad */
.timeline { max-width: 720px; margin: 0 auto; }
.timeline__item { display: flex; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid var(--border); }
.timeline__prompt { font-family: var(--mono-font); color: var(--accent); font-size: 1.5rem; line-height: 1; }
.timeline__date { font-family: var(--mono-font); color: var(--accent); font-size: 0.85rem; }
.timeline__body h3 { margin: 0.4rem 0; font-size: 1.2rem; }
.timeline__body p { color: var(--text-dim); font-size: 0.95rem; }
.about__role { color: var(--text-dim); font-family: var(--mono-font); font-size: 0.95rem; margin: -1.5rem 0 2.5rem; }
.about__summary { color: var(--text-dim); max-width: 500px; margin: 2.5rem auto 0; }
.about__cta { margin-top: 4rem; }

/* CONTACTO */
.contact__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact__text { color: var(--text-dim); margin: 1rem 0 1.5rem; }
.contact__social { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.contact__social a {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  color: var(--text); text-decoration: none;
  border: 1px solid var(--border); border-radius: 50%; transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.contact__social a svg { width: 20px; height: 20px; }
.contact__social a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.contact__form { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 16px; padding: 2rem; }
.form-row { margin-bottom: 1.25rem; }
.form-row label { display: block; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0.4rem; }
.form-row input, .form-row textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 0.75rem; color: var(--text); font-family: var(--sans-font); font-size: 0.95rem;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--accent); }
.form-note { text-align: center; margin-top: 1rem; color: var(--accent); font-size: 0.9rem; min-height: 1.2rem; }

/* FOOTER */
.footer { border-top: 1px solid var(--border); padding: 3rem 1.5rem; text-align: center; color: var(--text-dim); }
.footer__inner { max-width: 1200px; margin: 0 auto; }
.footer__brand-link { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; font-family: var(--mono-font); font-size: 1.25rem; color: var(--text); text-decoration: none; }
.footer__brand-logo { width: 1em; height: 1em; }
.footer__nav { display: flex; gap: 1.5rem; justify-content: center; margin: 1.5rem 0; flex-wrap: wrap; }
.footer__nav a { color: var(--text-dim); text-decoration: none; }
.footer__copy { font-size: 0.85rem; }
.footer__credit { font-size: 0.8rem; margin-top: 0.5rem; opacity: 0.7; }
.footer__credit a, .footer__credit a:visited { color: var(--text-dim); text-decoration: underline; }
.footer__credit a:hover { color: var(--accent); }

.to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 90;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-elevated); border: 1px solid var(--border); color: var(--text);
  cursor: pointer; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.to-top.is-visible { opacity: 1; pointer-events: auto; }

.noise-overlay { position: fixed; inset: 0; pointer-events: none; z-index: 1; opacity: 0.02; background: repeating-conic-gradient(#fff 0% 0.01%, transparent 0% 0.02%); }

/* RESPONSIVE */
@media (max-width: 1080px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-elevated); border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: 0.75rem 0; border-bottom: 1px solid var(--border); }
  .nav__burger { display: flex; }
  .services__grid { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
  .client-card { flex-direction: column; }
}