/* ===============================================
   VARIABLES & RESET
   =============================================== */
:root {
  --bg:          #050506;
  --surface:     #0b0b0d;
  --surface-2:   #101013;
  --border:      #1c1c21;
  --border-lit:  #2a2a30;
  --green:       #22c55e;
  --green-dim:   #16a34a;
  --amber:       #f59e0b;
  --sky:         #38bdf8;
  --red:         #ef4444;
  --text-1:      #e6e8ec;
  --text-2:      #8b929e;
  --text-3:      #4b515c;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --radius:      4px;
  --maxw:        1080px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
::selection { background: rgba(34,197,94,0.25); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-lit); border-radius: 3px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* ===============================================
   NAV
   =============================================== */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
#nav.scrolled {
  background: rgba(5,5,6,.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 1rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  font-family: var(--mono); font-size: .92rem; font-weight: 700;
  letter-spacing: -.01em; color: var(--text-1);
}
.brand-dot { color: var(--green); }
.nav-links { display: flex; gap: 2rem; }
.nav-link {
  font-family: var(--mono); font-size: .82rem; color: var(--text-2);
  position: relative; transition: color .2s;
}
.nav-link:hover { color: var(--text-1); }
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--green); transition: width .25s;
}
.nav-link:hover::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 1rem; }
.lang-toggle {
  font-family: var(--mono); font-size: .78rem; background: none; border: none;
  cursor: pointer; color: var(--text-3); display: flex; gap: .3rem; align-items: center;
}
.lang-opt { transition: color .2s; }
.lang-opt.active { color: var(--green); }
.lang-sep { color: var(--text-3); }

.menu-btn {
  display: none; flex-direction: column; gap: 5px; background: none;
  border: none; cursor: pointer; padding: 4px;
}
.menu-btn span { width: 22px; height: 2px; background: var(--text-1); transition: .3s; }

.mobile-menu {
  display: none; flex-direction: column; padding: 1rem 1.5rem;
  background: rgba(5,5,6,.97); border-bottom: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--mono); font-size: .9rem; color: var(--text-2);
  padding: .7rem 0; border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }

/* ===============================================
   HERO
   =============================================== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden;
}
.grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 65% 65% at 50% 45%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 65% 65% at 50% 45%, #000 0%, transparent 100%);
  opacity: .6;
}
.hero-glow {
  position: absolute; top: 42%; left: 50%; transform: translate(-50%,-50%);
  width: 640px; height: 640px;
  background: radial-gradient(circle, rgba(34,197,94,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; width: 100%; }
.hero-eyebrow {
  font-family: var(--mono); font-size: .85rem; color: var(--text-2); margin-bottom: 1.2rem;
}
.prompt-mark { color: var(--green); }
.hero-name {
  font-size: clamp(2.6rem, 8vw, 4.8rem); font-weight: 700; letter-spacing: -.03em;
  line-height: 1; margin-bottom: 1rem;
}
.hero-typed {
  font-family: var(--mono); font-size: clamp(1rem, 3vw, 1.4rem); color: var(--green);
  min-height: 1.8em; margin-bottom: 1.4rem;
}
.cursor-blink { animation: blink 1s step-end infinite; color: var(--green); }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.hero-desc {
  max-width: 60ch; color: var(--text-2); font-size: 1.02rem; margin-bottom: 2.2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  font-family: var(--mono); font-size: .85rem; padding: .75rem 1.5rem;
  border-radius: var(--radius); transition: all .2s; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--green); color: #04140a; font-weight: 700; }
.btn-primary:hover { background: #2ee06a; transform: translateY(-2px); }
.btn-ghost { border-color: var(--border-lit); color: var(--text-1); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

.scroll-indicator {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
}
.scroll-line {
  display: block; width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--text-3), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop { 0%,100%{transform:scaleY(1);opacity:.5} 50%{transform:scaleY(.55);opacity:1} }

/* ===============================================
   SECTIONS
   =============================================== */
.section { padding: 6.5rem 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { margin-bottom: 3rem; }
.section-index {
  font-family: var(--mono); font-size: .8rem; color: var(--green); display: block; margin-bottom: .5rem;
}
.section-title { font-size: clamp(1.8rem, 5vw, 2.6rem); font-weight: 700; letter-spacing: -.02em; }
.section-sub { color: var(--text-2); margin-top: .6rem; max-width: 55ch; }

/* ===============================================
   REVEAL
   =============================================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-line, .cursor-blink, .blink-dot { animation: none; }
}

/* ===============================================
   PROJECTS
   =============================================== */
.filter-row { display: flex; gap: .6rem; margin-bottom: 2.2rem; flex-wrap: wrap; }
.filter-btn {
  font-family: var(--mono); font-size: .78rem; padding: .45rem 1rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: transparent; color: var(--text-2); cursor: pointer; transition: all .2s;
}
.filter-btn:hover:not(.active) { color: var(--text-1); border-color: var(--border-lit); }
.filter-btn.active { color: var(--green); border-color: rgba(34,197,94,.45); background: rgba(34,197,94,.08); }

.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.2rem;
}
.project-card {
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  padding: 1.5rem; display: flex; flex-direction: column;
  transition: border-color .25s, background .25s, transform .25s, opacity .25s;
}
.project-card:hover { border-color: rgba(34,197,94,.35); background: var(--surface-2); transform: translateY(-3px); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.card-lang { font-family: var(--mono); font-size: .68rem; color: var(--green); opacity: .85; letter-spacing: .02em; }
.card-links { display: flex; gap: .5rem; }
.card-link {
  font-family: var(--mono); font-size: .72rem; color: var(--text-2);
  border: 1px solid var(--border); border-radius: 3px; padding: .2rem .5rem;
  background: transparent; cursor: pointer; transition: all .2s;
}
.card-link:hover { color: var(--green); border-color: rgba(34,197,94,.4); }
.card-demo-btn { color: var(--amber); }
.card-demo-btn:hover { color: var(--amber); border-color: rgba(245,158,11,.5); }
.card-title { font-size: 1.15rem; font-weight: 600; margin-bottom: .6rem; }
.card-desc { font-size: .88rem; color: var(--text-2); line-height: 1.65; flex: 1; }
.card-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: 1.2rem; }
.tag {
  font-family: var(--mono); font-size: .64rem; color: var(--text-2);
  background: rgba(255,255,255,.03); border: 1px solid var(--border);
  padding: .18rem .5rem; border-radius: 3px;
}

/* ===============================================
   SKILLS — grid por niveles
   =============================================== */
.skills-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 1.2rem; }
.skill-level {
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg);
  padding: 1.6rem;
}
.level-head { display: flex; align-items: center; gap: .6rem; margin-bottom: .3rem; }
.level-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-solid { background: var(--green); box-shadow: 0 0 10px rgba(34,197,94,.6); }
.dot-learning { background: var(--amber); box-shadow: 0 0 10px rgba(245,158,11,.5); }
.dot-touched { background: var(--text-3); }
.level-name { font-size: 1.05rem; font-weight: 600; }
.level-desc { font-size: .8rem; color: var(--text-3); margin-bottom: 1.2rem; font-family: var(--mono); }
.skill-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.skill-chip {
  font-family: var(--mono); font-size: .76rem; color: var(--text-1);
  background: var(--surface-2); border: 1px solid var(--border-lit);
  padding: .35rem .7rem; border-radius: 3px; transition: border-color .2s, color .2s;
}
.skill-level:nth-child(1) .skill-chip:hover { border-color: var(--green); color: var(--green); }
.skill-level:nth-child(2) .skill-chip:hover { border-color: var(--amber); color: var(--amber); }
.skill-level:nth-child(3) .skill-chip:hover { border-color: var(--text-2); color: var(--text-1); }

/* ===============================================
   ABOUT + TERMINAL
   =============================================== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.about-text .section-title { margin-bottom: 1.4rem; }
.about-text p { color: var(--text-2); margin-bottom: 1rem; max-width: 52ch; }
.about-terminal-hint { display: flex; align-items: center; gap: .8rem; margin-top: 1.6rem; flex-wrap: wrap; }
.open-terminal-btn {
  display: inline-flex; align-items: center; gap: .5rem; font-family: var(--mono);
  font-size: .78rem; color: var(--green); border: 1px solid rgba(34,197,94,.35);
  background: transparent; padding: .5rem 1rem; border-radius: var(--radius); cursor: pointer; transition: .2s;
}
.open-terminal-btn:hover { background: rgba(34,197,94,.08); }
.blink-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: blink 1.5s ease infinite; }
.term-hint { font-family: var(--mono); font-size: .74rem; color: var(--text-3); }

.terminal-window {
  background: #060608; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; font-family: var(--mono); font-size: .78rem;
}
.terminal-titlebar {
  background: #0d0d10; border-bottom: 1px solid var(--border); padding: .6rem 1rem;
  display: flex; align-items: center; gap: .5rem;
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-r { background: rgba(239,68,68,.65); }
.dot-y { background: rgba(245,158,11,.65); }
.dot-g { background: rgba(34,197,94,.65); }
.terminal-title { font-size: .7rem; color: var(--text-3); margin-left: .5rem; }
.terminal-wrapper.hidden { display: none; }
.terminal-output { padding: 1rem 1.1rem; min-height: 220px; max-height: 360px; overflow-y: auto; line-height: 1.6; color: var(--text-2); }
.terminal-output div { white-space: pre-wrap; word-break: break-word; }
.terminal-prompt-row { display: flex; align-items: center; gap: .5rem; padding: .55rem 1.1rem; border-top: 1px solid var(--border); }
.t-prompt { color: var(--green); white-space: nowrap; }
.t-prompt.root { color: var(--red); }
.terminal-input { flex: 1; background: none; border: none; outline: none; color: var(--text-1); font-family: var(--mono); font-size: .78rem; caret-color: var(--green); }
.terminal-placeholder { padding: 2.5rem 1.1rem; text-align: center; color: var(--text-3); font-size: .8rem; }
.terminal-wrapper:not(.hidden) + .terminal-placeholder { display: none; }

.t-green { color: var(--green); } .t-red { color: var(--red); } .t-amber { color: var(--amber); }
.t-white { color: var(--text-1); } .t-dim { color: var(--text-3); } .t-blue { color: var(--sky); }

/* ===============================================
   CONTACT
   =============================================== */
.contact-inner { text-align: center; }
.contact-inner .section-head, .contact-inner > div:first-child { margin-bottom: 2rem; }
.contact-inner .section-sub { margin-left: auto; margin-right: auto; }
.contact-links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 2rem; }
.email-link {
  display: inline-flex; align-items: center; gap: .7rem; font-family: var(--mono);
  font-size: .85rem; color: var(--text-1); border: 1px solid var(--border);
  padding: .9rem 1.6rem; border-radius: var(--radius); transition: .2s;
}
.email-link:hover { border-color: var(--green); color: var(--green); background: rgba(34,197,94,.05); }
.email-icon { color: var(--green); }

/* ===============================================
   FOOTER
   =============================================== */
footer { border-top: 1px solid var(--border); padding: 1.6rem 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: .74rem; color: var(--text-3); flex-wrap: wrap; gap: .5rem; }

/* ===============================================
   MARIO DEMO MODAL
   =============================================== */
.demo-modal {
  position: fixed; inset: 0; z-index: 200; display: none;
  align-items: center; justify-content: center; padding: 1rem;
  background: rgba(0,0,0,.8); backdrop-filter: blur(4px);
}
.demo-modal.open { display: flex; }
.demo-box {
  background: var(--surface); border: 1px solid var(--border-lit); border-radius: var(--radius);
  overflow: hidden; max-width: 540px; width: 100%;
}
.demo-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: .8rem 1.1rem; border-bottom: 1px solid var(--border); background: #0d0d10;
}
.demo-title { font-family: var(--mono); font-size: .82rem; color: var(--green); }
.demo-close { background: none; border: none; color: var(--text-2); cursor: pointer; font-size: 1rem; }
.demo-close:hover { color: var(--red); }
.mario-console { background: #060608; }
.mario-board {
  font-family: 'Segoe UI Emoji', 'Noto Color Emoji', 'Apple Color Emoji', monospace;
  font-size: 1.3rem; line-height: 1.05; letter-spacing: 0;
  padding: 1rem 1.1rem; margin: 0; color: var(--text-1); white-space: pre; overflow-x: auto;
  background: #0a0a12; border-bottom: 1px solid var(--border); text-align: center;
}
.mario-log { font-family: var(--mono); font-size: .74rem; color: var(--amber); padding: .5rem 1.1rem; min-height: 1.4em; }
.mario-prompt-row { display: flex; align-items: center; gap: .5rem; padding: .55rem 1.1rem; border-top: 1px solid var(--border); }
.demo-info { padding: .8rem 1.1rem 1.1rem; }
.demo-controls { font-family: var(--mono); font-size: .72rem; color: var(--text-3); }

/* Bloque JSON en Sobre mí */
.about-side { display: flex; flex-direction: column; gap: 1.2rem; }
.code-block { background: #070709; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.code-header { background: #0d0d10; border-bottom: 1px solid var(--border); padding: .55rem 1rem; display: flex; align-items: center; gap: .5rem; }
.code-file { font-family: var(--mono); font-size: .7rem; color: var(--text-3); margin-left: .5rem; }
.code-body { padding: 1.1rem 1.3rem; font-family: var(--mono); font-size: .8rem; line-height: 1.9; color: var(--text-2); margin: 0; white-space: pre; overflow-x: auto; }
.c-key { color: var(--sky); } .c-str { color: var(--green); } .c-item { color: var(--amber); } .c-punct { color: var(--text-3); }

/* ===============================================
   RESPONSIVE
   =============================================== */
@media (max-width: 820px) {
  .nav-links { display: none; }
  .menu-btn { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 480px) {
  .section { padding: 4.5rem 0; }
  .projects-grid { grid-template-columns: 1fr; }
}