/* =========================================================
   MR JOTA — Design System v2
   Estilo: dark / terminal / neon — inspirado en interfaces
   de consola, tipografía monoespaciada y acentos lima.
   ========================================================= */

:root {
  /* Superficies (oscuro) */
  --navy-950: #08090a;   /* fondo base del sitio */
  --navy-900: #0c0e0b;
  --navy-800: #12140f;   /* tarjetas / secciones alternas */
  --navy-700: #191c14;   /* bordes de degradado del hero */

  /* Acento primario: verde lima neón */
  --blue-500: #baff2e;
  --blue-400: #cdff5e;
  --blue-300: #e6ffab;

  /* Acento secundario: ámbar (para "en desarrollo / interés") */
  --gold-500: #ffb454;
  --gold-400: #ffc978;

  /* Texto */
  --ink-900: #f4f6f1;
  --ink-700: #c3cbc2;
  --ink-500: #8b958b;
  --ink-300: #5c655c;

  /* Fondo / bordes */
  --paper-0: #08090a;
  --paper-50: #0e100d;
  --paper-100: #161911;
  --paper-200: rgba(255, 255, 255, 0.10);
  --line-soft: rgba(255, 255, 255, 0.05);

  --accent-soft: rgba(186, 255, 46, 0.10);
  --amber-soft: rgba(255, 180, 84, 0.12);
  --glow: 0 0 0 1px rgba(186, 255, 46, 0.4), 0 0 32px rgba(186, 255, 46, 0.16);
  --glow-sm: 0 0 0 1px rgba(186, 255, 46, 0.35), 0 0 14px rgba(186, 255, 46, 0.14);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 14px 36px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.6);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --maxw: 1160px;

  --font-head: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Space Mono", monospace;

  --grid-line: rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink-700);
  background: var(--paper-0);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink-900);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}
p { margin: 0 0 1em; color: var(--ink-700); }
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-500);
  background: var(--accent-soft);
  border: 1px solid rgba(186, 255, 46, 0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.eyebrow::before { content: "//"; opacity: 0.6; }
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-alt { background: var(--paper-50); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-dark { background: linear-gradient(160deg, var(--navy-950), var(--navy-800)); }
.section-head { max-width: 720px; margin: 0 0 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Buttons (estilo terminal: corchetes + mono) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  padding: 13px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color .18s ease, border-color .18s ease;
  background: transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  border-color: rgba(186, 255, 46, 0.45);
  color: var(--blue-500);
  background: var(--accent-soft);
}
.btn-primary:hover { background: var(--blue-500); color: var(--navy-950); box-shadow: var(--glow); }
.btn-ghost {
  border-color: var(--paper-200);
  color: var(--ink-700);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); color: var(--ink-900); }
.btn-outline {
  border-color: var(--paper-200);
  color: var(--ink-900);
}
.btn-outline:hover { border-color: var(--blue-500); color: var(--blue-500); }
.btn-gold {
  border-color: rgba(255, 180, 84, 0.45);
  color: var(--gold-500);
  background: var(--amber-soft);
}
.btn-gold:hover { background: var(--gold-500); color: var(--navy-950); }

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(8, 9, 10, 0.78);
  border-bottom: 1px solid var(--line-soft);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink-900);
}
.brand .mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--paper-100);
  border: 1px solid rgba(186,255,46,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue-500);
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.brand small {
  display: block;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.66rem;
  color: var(--ink-500);
  letter-spacing: 0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: var(--ink-500);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 500;
  padding: 9px 15px;
  border-radius: 8px;
  transition: background .15s ease, color .15s ease;
}
.nav-links a:hover, .nav-links a.active { background: var(--paper-100); color: var(--blue-500); }
.nav-toggle { display: none; }

@media (max-width: 820px) {
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(8,9,10,0.98);
    padding: 12px 24px 20px;
    display: none;
    gap: 4px;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-toggle {
    display: flex;
    align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border-radius: 9px;
    background: var(--paper-100);
    border: 1px solid var(--paper-200);
    color: var(--ink-900); cursor: pointer;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  padding: 96px 0 110px;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(186,255,46,0.10), transparent 45%),
    radial-gradient(circle at 10% 85%, rgba(255,180,84,0.08), transparent 40%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-media { order: -1; margin: 0 auto; }
}
.hero h1 {
  color: var(--ink-900);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.02em;
}
.hero .lede {
  font-size: 1.08rem;
  color: var(--ink-500);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
@media (max-width: 900px) { .hero-cta { justify-content: center; } }
.hero-media {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--paper-200);
  box-shadow: var(--glow);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 44px;
  flex-wrap: wrap;
}
@media (max-width: 900px) { .hero-stats { justify-content: center; } }
.hero-stats .stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--blue-500);
}
.hero-stats .stat span {
  font-size: 0.78rem;
  color: var(--ink-500);
  font-family: var(--font-mono);
}

.hero-cover { padding: 0; overflow: hidden; }
.hero-cover img {
  width: 100%; height: 220px; object-fit: cover; display: block;
  filter: brightness(0.4) saturate(0.9);
}

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper-50);
  border: 1px solid var(--paper-200);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--glow-sm); border-color: rgba(186,255,46,0.35); }
.card .icon-tile {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--paper-100);
  border: 1px solid var(--paper-200);
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.card p { margin-bottom: 18px; font-size: 0.94rem; }
.card .card-link {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--blue-500);
  display: inline-flex; align-items: center; gap: 6px;
}
.card .card-link .arrow { transition: transform .18s ease; }
.card:hover .card-link .arrow { transform: translateX(4px); }

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper-100);
  color: var(--ink-500);
  border: 1px solid var(--paper-200);
  margin: 0 6px 6px 0;
}
.badge-soon { background: var(--amber-soft); color: var(--gold-500); border-color: rgba(255,180,84,0.3); }
.badge-verified { background: var(--accent-soft); color: var(--blue-500); border-color: rgba(186,255,46,0.3); }
.badge-interest { background: var(--amber-soft); color: var(--gold-500); border-color: rgba(255,180,84,0.3); }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute; left: 6px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--blue-500), var(--paper-200));
  opacity: 0.5;
}
.tl-item { position: relative; padding-bottom: 44px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute; left: -34px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--navy-950);
  border: 2px solid var(--blue-500);
  box-shadow: 0 0 0 4px rgba(186,255,46,0.12);
}
.tl-item .tl-period {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--blue-500);
  margin-bottom: 4px;
}
.tl-item h3 { margin-bottom: 2px; font-size: 1.15rem; }
.tl-item .tl-org { color: var(--ink-500); font-weight: 500; margin-bottom: 12px; font-size: 0.92rem; }
.tl-item ul { margin: 12px 0 0; padding-left: 20px; color: var(--ink-700); }
.tl-item li { margin-bottom: 6px; font-size: 0.92rem; }
.tl-note {
  margin-top: 12px;
  font-size: 0.84rem;
  font-family: var(--font-mono);
  background: var(--amber-soft);
  border-left: 2px solid var(--gold-500);
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--gold-400);
}

/* ---------- Skills ---------- */
.skill-group { margin-bottom: 26px; }
.skill-group h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-500);
  margin-bottom: 14px;
  font-weight: 500;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--paper-0);
  border-top: 1px solid var(--line-soft);
  color: var(--ink-500);
  padding: 56px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  color: var(--ink-900); font-family: var(--font-mono); font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; font-weight: 500;
}
.footer-grid a { display: block; margin-bottom: 8px; font-size: 0.9rem; color: var(--ink-500); }
.footer-grid a:hover { color: var(--blue-500); }
.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Misc ---------- */
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.divider { height: 1px; background: var(--paper-200); margin: 64px 0; border: none; }
.note-box {
  background: var(--paper-50);
  border: 1px dashed var(--paper-200);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-size: 0.88rem;
  font-family: var(--font-mono);
  color: var(--ink-500);
}
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-500);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--ink-700); }
.breadcrumb a:hover { color: var(--blue-500); }

/* =========================================================
   LINK HUB (portada mrjota.com — estilo link-in-bio)
   ========================================================= */
.linkhub-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 20px;
}
.linkhub-wrap { width: 100%; max-width: 640px; }
.linkhub-card {
  background: linear-gradient(180deg, var(--paper-50), var(--navy-950));
  border: 1px solid var(--paper-200);
  border-radius: 26px;
  padding: 44px 36px 36px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.avatar-ring {
  width: 108px; height: 108px;
  border-radius: 50%;
  margin: 0 auto 22px;
  padding: 4px;
  background: conic-gradient(from 180deg, rgba(186,255,46,0.55), rgba(255,180,84,0.35), rgba(186,255,46,0.55));
  box-shadow: var(--glow-sm);
}
.avatar-ring img { border-radius: 50%; border: 3px solid var(--navy-950); width: 100%; height: 100%; object-fit: cover; }
.linkhub-card .eyebrow { margin-bottom: 14px; }
.linkhub-card h1 { font-size: 2.2rem; margin-bottom: 10px; }
.linkhub-card .lede-center { color: var(--ink-500); font-size: 0.98rem; max-width: 420px; margin: 0 auto 32px; }

.link-list { display: flex; flex-direction: column; gap: 10px; text-align: left; }
.link-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--paper-200);
  background: rgba(255,255,255,0.015);
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.link-row:hover { border-color: rgba(186,255,46,0.4); background: var(--accent-soft); transform: translateY(-2px); }
.link-row.featured {
  border-color: rgba(186,255,46,0.45);
  background: var(--accent-soft);
  box-shadow: var(--glow-sm);
}
.link-icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--paper-100);
  border: 1px solid var(--paper-200);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
}
.link-text { flex: 1; min-width: 0; }
.link-text strong { display: block; color: var(--ink-900); font-family: var(--font-head); font-size: 1rem; font-weight: 600; }
.link-text small { display: block; color: var(--ink-500); font-size: 0.82rem; margin-top: 2px; }
.link-cta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-500);
  white-space: nowrap;
  flex-shrink: 0;
}
.link-row:hover .link-cta, .link-row.featured .link-cta { color: var(--blue-500); }

.linkhub-foot {
  text-align: center;
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-300);
}

/* Floating contact button + terminal modal */
.fab-contact {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 200;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--blue-500);
  background: var(--navy-950);
  border: 1px solid rgba(186,255,46,0.4);
  border-radius: 999px;
  padding: 12px 20px;
  cursor: pointer;
  box-shadow: var(--glow-sm);
  transition: transform .18s ease, background .18s ease;
}
.fab-contact:hover { transform: translateY(-2px); background: var(--paper-100); }

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(4,5,4,0.7);
  backdrop-filter: blur(4px);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.terminal-modal {
  width: 100%; max-width: 420px;
  background: var(--navy-950);
  border: 1px solid rgba(186,255,46,0.35);
  border-radius: 14px;
  box-shadow: var(--glow);
  font-family: var(--font-mono);
  overflow: hidden;
}
.terminal-titlebar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  background: var(--paper-100);
  border-bottom: 1px solid var(--paper-200);
  font-size: 0.78rem;
  color: var(--ink-500);
}
.terminal-titlebar button {
  background: transparent; border: none; color: var(--ink-500); cursor: pointer;
  font-family: var(--font-mono); font-size: 0.78rem;
}
.terminal-titlebar button:hover { color: var(--blue-500); }
.terminal-body { padding: 24px 22px; }
.terminal-prompt { color: var(--ink-300); font-size: 0.78rem; margin-bottom: 14px; }
.terminal-prompt::before { content: "> "; color: var(--blue-500); }
.terminal-body h3 { font-family: var(--font-head); font-size: 1.2rem; margin-bottom: 8px; }
.terminal-body p { font-family: var(--font-body); font-size: 0.9rem; color: var(--ink-500); margin-bottom: 18px; }
.terminal-link-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px;
  border: 1px solid var(--paper-200);
  border-radius: 8px;
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: var(--ink-900);
}
.terminal-link-row a { color: var(--blue-500); }
.terminal-link-row:hover { border-color: rgba(186,255,46,0.4); }