/* ===== RESET & VARIABLES ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #080810;
  --bg2:      #0d0d18;
  --surface:  #13131e;
  --surface2: #18182a;
  --border:   #252535;
  --border2:  #2e2e48;
  --accent:   #e8ff4d;
  --accent2:  #5c6bff;
  --text:     #e8e8f2;
  --muted:    #6868a0;
  --muted2:   #9090c0;
  --font:     'Syne', sans-serif;
  --mono:     'DM Mono', monospace;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); overflow-x: hidden; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 2rem; }

/* ===== NAV ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1rem 2rem;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}
nav.scrolled {
  background: rgba(8,8,16,0.93);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}
.nav-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-weight: 800; font-size: 1.1rem; letter-spacing: 0.05em; color: var(--accent); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); letter-spacing: 0.06em; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

/* ===== HERO BAR ===== */
.hero-bar {
  position: relative;
  padding: 4.5rem 2rem 1.2rem;
  background:
    radial-gradient(ellipse 80% 300% at 0% 50%, rgba(92,107,255,0.09) 0%, transparent 55%),
    var(--bg);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.noise {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}
.hero-bar-inner {
  position: relative; z-index: 1;
  max-width: 1000px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap;
}
.hero-id { flex: 1; min-width: 0; }
.hero-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; flex-shrink: 0; }

.tag-disponible {
  font-family: var(--mono); font-size: 0.65rem; color: var(--accent);
  letter-spacing: 0.14em; text-transform: uppercase;
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.35rem;
}
.dot-blink {
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%; flex-shrink: 0;
  animation: blink 2s infinite;
}
@keyframes blink { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.25;transform:scale(0.6)} }

.nombre {
  font-size: clamp(1.45rem, 2.8vw, 2.2rem); font-weight: 800;
  line-height: 1.1; letter-spacing: -0.025em; margin-bottom: 0.25rem;
}
.nombre span { color: var(--accent); }

.hero-sub {
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted); line-height: 1.5;
}

.btn-accion {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.5rem 1rem; border-radius: 8px; font-family: var(--mono);
  font-size: 0.72rem; font-weight: 500; cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  border: 1px solid var(--border2); color: var(--muted2); background: rgba(255,255,255,0.03);
}
.btn-accion:hover { border-color: var(--accent); color: var(--accent); background: rgba(232,255,77,0.05); }
.btn-accion svg { width: 13px; height: 13px; flex-shrink: 0; }
.btn-disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

.hero-iconos { display: flex; gap: 0.5rem; }
.icono-link {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border: 1px solid var(--border2); border-radius: 8px;
  color: var(--muted); transition: border-color 0.2s, color 0.2s;
}
.icono-link svg { width: 16px; height: 16px; }
.icono-link:hover { border-color: var(--accent2); color: var(--accent2); }

/* ===== SECTION LABEL ===== */
.section-label {
  font-family: var(--mono); font-size: 0.65rem; color: var(--accent);
  letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 0.6rem; display: block;
}

/* ===== PROYECTOS ===== */
.proyectos-main { padding: 2rem 0 3rem; }

.proyectos-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
}

.proyecto-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.proyecto-card:hover { border-color: var(--border2); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.proyecto-card.featured { border-color: rgba(232,255,77,0.18); }
.proyecto-card.featured:hover { border-color: rgba(232,255,77,0.4); box-shadow: 0 12px 32px rgba(232,255,77,0.06); }

/* THUMBS */
.proyecto-thumb { height: 150px; display: flex; align-items: center; justify-content: center; }
.calc-thumb { background: linear-gradient(135deg, #0d0d1a 0%, #1a1a30 100%); }
.rpg-thumb  { background: linear-gradient(135deg, #0d1a0d 0%, #1a300d 100%); }

.calc-mini { background: #1c1c1c; border-radius: 10px; padding: 8px; width: 140px; box-shadow: 0 6px 20px rgba(0,0,0,0.5); }
.calc-screen { background: #000; color: #fff; font-family: var(--mono); font-size: 1rem; text-align: right; padding: 4px 7px; border-radius: 5px; margin-bottom: 6px; }
.calc-btns { display: grid; grid-template-columns: repeat(4,1fr); gap: 4px; }
.cb { background: #2a2a2a; color: #ccc; font-size: 0.52rem; border-radius: 4px; padding: 4px 2px; text-align: center; font-family: var(--mono); }
.cb.op { background: #333; }
.cb.op-b { background: #3b3bcc; color: #fff; }
.cb.eq { background: #c87000; color: #fff; }
.cb.wide { grid-column: span 2; }

.rpg-mini { background: #111c11; border: 1px solid #2a402a; border-radius: 10px; padding: 10px; width: 160px; font-family: var(--mono); }
.rpg-title { font-size: 0.58rem; font-weight: 700; color: #ffe08a; text-align: center; margin-bottom: 6px; letter-spacing: 0.05em; }
.rpg-stats { display: flex; flex-direction: column; gap: 2px; margin-bottom: 6px; }
.rpg-stats div { font-size: 0.52rem; color: #8abf8a; }
.rpg-enemy { font-size: 0.58rem; color: #ff8080; text-align: center; margin-bottom: 6px; }
.rpg-btns { display: flex; gap: 4px; justify-content: center; }
.rpg-btns span { background: #1f3d1f; border: 1px solid #3a6a3a; border-radius: 4px; padding: 3px 6px; font-size: 0.5rem; color: #8fd88f; }

/* INFO */
.proyecto-info { padding: 1.1rem 1.25rem 1.25rem; }
.proyecto-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.75rem; margin-bottom: 0.5rem; }
.proyecto-header h2 { font-size: 1rem; font-weight: 700; line-height: 1.2; }
.gh-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-family: var(--mono); font-size: 0.65rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 6px; padding: 0.3rem 0.6rem;
  white-space: nowrap; transition: color 0.2s, border-color 0.2s; flex-shrink: 0;
}
.gh-link:hover { color: var(--text); border-color: var(--border2); }

.featured-pill {
  display: inline-block; font-family: var(--mono); font-size: 0.6rem;
  color: var(--accent); background: rgba(232,255,77,0.08);
  border: 1px solid rgba(232,255,77,0.2); border-radius: 4px;
  padding: 0.15rem 0.5rem; margin-bottom: 0.3rem;
}

.proyecto-desc {
  font-family: var(--mono); font-size: 0.75rem; color: var(--muted);
  line-height: 1.65; margin-bottom: 0.85rem;
}

/* TECH TAGS */
.tech-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1rem; }
.tech-tag {
  font-family: var(--mono); font-size: 0.62rem;
  padding: 0.22rem 0.55rem; border-radius: 5px; border: 1px solid;
}
.t-js   { color: #f7df1e; background: rgba(247,223,30,0.08);  border-color: rgba(247,223,30,0.2); }
.t-html { color: #e3722c; background: rgba(227,114,44,0.08);  border-color: rgba(227,114,44,0.2); }
.t-css  { color: #66b3ff; background: rgba(102,179,255,0.08); border-color: rgba(102,179,255,0.2); }
.t-dom  { color: var(--muted2); background: rgba(144,144,192,0.07); border-color: rgba(144,144,192,0.15); }
.t-java { color: #f89820; background: rgba(248,152,32,0.08);  border-color: rgba(248,152,32,0.2); }
.t-poo  { color: #c792ea; background: rgba(199,146,234,0.08); border-color: rgba(199,146,234,0.2); }
.t-sql  { color: #4db6ff; background: rgba(77,182,255,0.08);  border-color: rgba(77,182,255,0.2); }
.t-sys  { color: #80cfa9; background: rgba(128,207,169,0.08); border-color: rgba(128,207,169,0.2); }
.t-tool { color: var(--muted2); background: rgba(144,144,192,0.06); border-color: rgba(144,144,192,0.13); }

/* BOTONES DEMO */
.btn-demo {
  display: inline-flex; align-items: center; gap: 0.45rem;
  background: var(--accent); color: #000; font-family: var(--font);
  font-size: 0.78rem; font-weight: 700; padding: 0.55rem 1.1rem;
  border-radius: 8px; border: none; cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.btn-demo:hover { background: #d4eb3a; transform: translateY(-1px); }
.btn-demo svg { width: 13px; height: 13px; flex-shrink: 0; }
.btn-demo.btn-disabled {
  background: var(--surface2); color: var(--muted); border: 1px solid var(--border);
  cursor: not-allowed; pointer-events: none;
}

/* ===== TECNOLOGÍAS ===== */
.tecnologias { padding: 4rem 0; border-top: 1px solid var(--border); background: var(--bg2); }
.tecnologias h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 2rem; }

.tech-bloques { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.tech-bloque {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.2rem;
  transition: border-color 0.2s;
}
.tech-bloque:hover { border-color: var(--border2); }
.tech-bloque h3 { font-size: 0.88rem; font-weight: 700; margin-bottom: 0.85rem; display: flex; align-items: center; gap: 0.5rem; }
.smr-badge {
  font-family: var(--mono); font-size: 0.58rem; background: rgba(128,207,169,0.12);
  color: #80cfa9; border: 1px solid rgba(128,207,169,0.25); border-radius: 4px;
  padding: 0.1rem 0.4rem;
}

/* ===== ESTUDIOS ===== */
.estudios { padding: 4rem 0; border-top: 1px solid var(--border); }
.estudios h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 2rem; }

.timeline { position: relative; padding-left: 1.75rem; }
.timeline::before { content:''; position:absolute; left:0; top:8px; bottom:8px; width:1px; background: var(--border2); }

.timeline-item { position: relative; margin-bottom: 2.5rem; }
.timeline-item:last-child { margin-bottom: 0; }
.tl-dot {
  position: absolute; left: -1.75rem; top: 10px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--border2); border: 2px solid var(--bg);
  transform: translateX(-4px);
}
.timeline-item.current .tl-dot { background: var(--accent); }

.tl-content {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.5rem;
}
.timeline-item.current .tl-content { border-color: rgba(232,255,77,0.18); }

.tl-head { display: flex; align-items: center; gap: 0.65rem; margin-bottom: 0.6rem; flex-wrap: wrap; }
.badge-cursando { font-family: var(--mono); font-size: 0.6rem; padding: 0.2rem 0.6rem; border-radius: 100px; background: rgba(232,255,77,0.1); color: var(--accent); border: 1px solid rgba(232,255,77,0.2); }
.badge-hecho    { font-family: var(--mono); font-size: 0.6rem; padding: 0.2rem 0.6rem; border-radius: 100px; background: rgba(100,220,100,0.08); color: #64dc64; border: 1px solid rgba(100,220,100,0.2); }
.tl-year { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }
.tl-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.25rem; }
.tl-centro { font-family: var(--mono); font-size: 0.72rem; color: var(--accent2); margin-bottom: 0.65rem; }
.tl-desc { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); line-height: 1.7; margin-bottom: 1rem; }
.tl-desc strong { color: var(--text); font-weight: 500; }

.smr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; margin-bottom: 1rem; }
.smr-item { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem; }
.smr-item strong { display: block; font-size: 0.78rem; margin-bottom: 0.25rem; }
.smr-item span { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); line-height: 1.55; }

/* ===== CONTACTO ===== */
.contacto { padding: 4rem 0; border-top: 1px solid var(--border); background: var(--bg2); }
.contacto h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.contacto-desc { font-family: var(--mono); font-size: 0.82rem; color: var(--muted); margin-bottom: 2rem; line-height: 1.7; }
.contacto-desc strong { color: var(--text); font-weight: 500; }
.contacto-cards { display: flex; flex-direction: column; gap: 0.75rem; max-width: 480px; }
.contacto-card {
  display: flex; align-items: center; gap: 1.1rem;
  padding: 1.1rem 1.4rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; transition: border-color 0.2s, background 0.2s;
}
.contacto-card:hover { border-color: var(--accent2); background: rgba(92,107,255,0.04); }
.contacto-card svg { flex-shrink: 0; color: var(--accent2); width: 20px; height: 20px; }
.contacto-card div { display: flex; flex-direction: column; gap: 0.1rem; }
.contacto-card strong { font-size: 0.86rem; font-weight: 700; }
.contacto-card span { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }

/* ===== FOOTER ===== */
footer { border-top: 1px solid var(--border); padding: 2rem 0; background: var(--bg2); }
footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
footer p { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
footer .footer-sub { color: #2e2e48; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .tech-bloques { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .proyectos-grid { grid-template-columns: 1fr; }
  .tech-bloques { grid-template-columns: 1fr; }
  .smr-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero-bar { padding: 4rem 1.5rem 1.2rem; }
  .hero-bar-inner { flex-direction: column; align-items: flex-start; }
  .hero-actions { width: 100%; }
  footer .container { flex-direction: column; align-items: flex-start; }
}