:root {
  --bg: #0a0a0a;
  --bg-alt: #0d0f0a;
  --bg-terminal: #080a08;
  --green: #33ff66;
  --green-dim: #1a8a3a;
  --green-bright: #5fffa0;
  --amber: #ffb000;
  --text: #c8d8c8;
  --muted: #5a7a5a;
  --border: #1a3a1a;
  --glow: 0 0 6px rgba(51, 255, 102, 0.4);
  --font: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* CRT effects */
.crt-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.4) 100%);
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0.15) 0px,
    rgba(0,0,0,0.15) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: 0.5;
}

/* Layout */
.site-shell {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 920px;
  width: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

/* Top bar */
.top-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.platform-switcher {
  display: flex;
  gap: 4px;
}

.lang-switcher {
  display: flex;
  gap: 4px;
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

.version-toggle {
  display: flex;
  gap: 0;
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

.version-toggle a {
  display: inline-block;
  padding: 4px 10px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: all 0.15s;
}

.version-toggle a + a {
  margin-left: 4px;
}

.version-toggle a.active {
  color: var(--green);
  border-color: var(--green-dim);
  text-shadow: 0 0 6px rgba(51, 255, 102, 0.3);
}

.version-toggle a:hover:not(.active) {
  color: var(--green-dim);
  border-color: var(--green-dim);
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font);
  font-size: 12px;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 1px;
  font-weight: 700;
}

.lang-btn:hover {
  border-color: var(--green-dim);
  color: var(--green);
}

.lang-btn.active {
  border-color: var(--green);
  color: var(--green-bright);
  background: rgba(51, 255, 102, 0.08);
  text-shadow: var(--glow);
}

.platform-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font);
  font-size: 12px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 1px;
}

.platform-btn:hover {
  border-color: var(--green-dim);
  color: var(--green);
}

.platform-btn.active {
  border-color: var(--green);
  color: var(--green-bright);
  background: rgba(51, 255, 102, 0.08);
  text-shadow: var(--glow);
}

.menu {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  flex: 1;
}

.menu-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.menu-btn:hover {
  border-color: var(--green-dim);
  color: var(--green-bright);
  background: rgba(51, 255, 102, 0.05);
  text-shadow: var(--glow);
}

.menu-btn:active {
  background: rgba(51, 255, 102, 0.12);
}

/* Terminal */
.terminal {
  flex: 1;
  margin-top: 12px;
  position: relative;
}

.terminal-screen {
  background: var(--bg-terminal);
  border: 1px solid var(--border);
  padding: 16px 20px;
  min-height: 400px;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.65;
  outline: none;
  cursor: text;
  position: relative;
}

.terminal-screen:focus {
  border-color: var(--green-dim);
  box-shadow: 0 0 12px rgba(51, 255, 102, 0.08);
}

/* Scrollbar */
.terminal-screen::-webkit-scrollbar { width: 8px; }
.terminal-screen::-webkit-scrollbar-track { background: var(--bg-terminal); }
.terminal-screen::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.terminal-screen::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* Boot sequence */
.boot-seq {
  color: var(--green);
  font-size: 13px;
  white-space: pre-wrap;
  margin-bottom: 8px;
}

.boot-line {
  opacity: 1;
}

/* Prompt lines */
.prompt-line {
  color: var(--green);
  margin-bottom: 4px;
  text-shadow: var(--glow);
  white-space: pre-wrap;
  word-break: break-word;
}

.prompt-line .prompt-text {
  color: var(--green-bright);
}

.prompt-line .cmd-text {
  color: var(--amber);
}

.prompt-line .input-text {
  color: var(--amber);
}

.prompt-line.active .cursor {
  animation: blink 1s steps(1) infinite;
  color: var(--green);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Output */
.output {
  padding-left: 20px;
  border-left: 1px solid var(--border);
  margin-left: 4px;
  margin-bottom: 16px;
}

.output p {
  margin-bottom: 10px;
  color: var(--text);
}

.output div {
  white-space: pre-wrap;
}

.output-pre {
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
}

.error-line {
  color: #ff5555;
  font-size: 13px;
}

/* Whoami card */
.whoami-card {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.ascii-art {
  color: var(--green);
  font-size: 12px;
  line-height: 1.1;
  text-shadow: var(--glow);
  white-space: pre;
}

.whoami-info h1 {
  font-size: 28px;
  color: var(--green-bright);
  text-shadow: var(--glow);
  font-weight: 700;
}

.whoami-info .tagline {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.contact-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.contact-links a {
  color: var(--amber);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.15s;
}

.contact-links a:hover {
  color: var(--green-bright);
  text-shadow: var(--glow);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.skill-cat h3 {
  color: var(--green-dim);
  font-size: 13px;
  margin-bottom: 10px;
  font-weight: 500;
}

.skill-cat ul {
  list-style: none;
}

.skill-cat li {
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--text);
}

.bar {
  height: 4px;
  background: var(--border);
  margin-top: 3px;
  border-radius: 2px;
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--green-dim), var(--green));
  border-radius: 2px;
  box-shadow: 0 0 4px rgba(51, 255, 102, 0.3);
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.project-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 16px 18px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  border-color: var(--green-dim);
  box-shadow: 0 0 12px rgba(51, 255, 102, 0.1);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.project-tag {
  color: var(--amber);
  font-size: 12px;
}

.project-card h3 {
  color: var(--green-bright);
  font-size: 16px;
  font-weight: 700;
}

.project-card p {
  font-size: 13px;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 10px;
}

.project-tech {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.project-links a {
  color: var(--green);
  text-decoration: none;
  font-size: 13px;
}

.project-links a:hover {
  color: var(--green-bright);
  text-shadow: var(--glow);
}

/* Experience timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.job {
  border-left: 2px solid var(--green-dim);
  padding-left: 16px;
}

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

.job-title {
  color: var(--green-bright);
  font-size: 15px;
  font-weight: 700;
}

.job-company {
  color: var(--amber);
  font-size: 13px;
}

.job-desc {
  font-size: 13px;
  color: var(--text);
  line-height: 1.55;
}

/* Languages */
.lang-list {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.lang {
  color: var(--green);
  font-size: 14px;
}

.lang small {
  color: var(--muted);
}

/* Footer */
.terminal-footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 12px;
}

.terminal-footer a {
  color: var(--green-dim);
  text-decoration: none;
}

.terminal-footer a:hover {
  color: var(--green);
}

/* Links generales */
a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  color: var(--green-bright);
}

/* Responsive */
@media (max-width: 768px) {
  .site-shell {
    padding: 0 10px;
  }

  .top-bar {
    gap: 8px;
    padding: 8px 0;
  }

  .menu {
    gap: 4px;
  }

  .menu-btn {
    font-size: 12px;
    padding: 3px 8px;
  }

  .terminal-screen {
    padding: 12px 14px;
    font-size: 13px;
    max-height: calc(100vh - 180px);
  }

  .output {
    padding-left: 12px;
  }

  .whoami-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .ascii-art {
    font-size: 10px;
  }

  .whoami-info h1 {
    font-size: 22px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .job-header {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  .boot-seq {
    font-size: 11px;
  }

  .platform-btn {
    font-size: 11px;
    padding: 3px 8px;
  }
}

/* ============================================ */
/* TEXT-ONLY VERSION (SEO/AI friendly, sin JS)  */
/* ============================================ */

.text-only-site {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1.5rem 3rem;
  color: var(--text);
}

.text-only-site h1 {
  color: var(--green);
  font-size: 2rem;
  margin-bottom: 0.25rem;
  text-shadow: var(--glow);
}

.text-only-tagline {
  color: var(--green-dim);
  margin-bottom: 1.5rem;
}

.text-only-nav {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.text-only-nav a {
  color: var(--green);
  text-decoration: none;
}

.text-only-nav a:hover {
  text-decoration: underline;
}

.text-only-site h2 {
  color: var(--green);
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.25rem;
}

.text-only-site h3 {
  color: var(--green-bright);
  font-size: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.text-only-site h3 small {
  color: var(--muted);
  font-size: 0.8rem;
}

.text-only-site p {
  margin-bottom: 0.75rem;
}

.text-only-site ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.text-only-site li {
  margin-bottom: 0.25rem;
}

.text-only-site a {
  color: var(--green);
}

.text-only-site small {
  color: var(--muted);
}

.text-only-site footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

.text-only-site footer a {
  color: var(--green-dim);
}

/* ============================================ */
/* JS-ONLY: oculto por defecto, visible con JS  */
/* ============================================ */

.js-only {
  display: none;
}

/* Cuando JS esta activo, ocultar text-only y mostrar terminal */
body.js-active .text-only-site {
  display: none;
}

body.js-active .js-only {
  display: flex;
}

body.js-active .terminal-footer {
  display: block;
}

/* Cascade easter egg */
@keyframes cascade-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(var(--fall-distance, 500px)) rotate(var(--fall-rotation, 15deg));
    opacity: 0.7;
  }
}

.cascade-char {
  display: inline-block;
  animation: cascade-fall var(--fall-duration, 1.5s) cubic-bezier(0.4, 0.1, 0.6, 0.9) forwards;
}

/* ============================================ */
/* KONAMI CODE: rainbow mode                     */
/* ============================================ */

@keyframes konami-rainbow {
  0%   { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

body.konami-rainbow .terminal-screen {
  animation: konami-rainbow 2s linear infinite;
}

body.konami-rainbow .crt-overlay {
  animation: konami-rainbow 2s linear infinite;
}