@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap');

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

:root {
  --bg: #0a0e1a;
  --surface: #111827;
  --border: #1e2d40;
  --accent: #00d4aa;
  --accent2: #3b82f6;
  --text: #e2e8f0;
  --muted: #64748b;
  --dim: #334155;
  --red: #ef4444;
  --green: #4ade80;
  --blue: #60a5fa;
  --amber: #fbbf24;

  --code-bg: #0f1c2e;
  --pre-bg: #070c14;
  --kbd-bg: #1a2535;
  --row-hover: rgba(255,255,255,0.02);

  --badge-green-border: #166534;  --badge-green-bg: #052e16;
  --badge-blue-border: #1e3a5f;   --badge-blue-bg: #0c1f3a;
  --badge-amber-border: #78350f;  --badge-amber-bg: #2d1a06;
  --badge-red-border: #7f1d1d;    --badge-red-bg: #2d0a0a;
  --badge-accent-border: #0f6e56; --badge-accent-bg: #04342c;
}

[data-theme="light"] {
  --bg: #f0f4f8;
  --surface: #ffffff;
  --border: #d1dce8;
  --accent: #00967a;
  --accent2: #2563eb;
  --text: #1e293b;
  --muted: #64748b;
  --dim: #94a3b8;
  --red: #dc2626;
  --green: #16a34a;
  --blue: #2563eb;
  --amber: #d97706;

  --code-bg: #e8f0f7;
  --pre-bg: #dce8f2;
  --kbd-bg: #e2eaf2;
  --row-hover: rgba(0,0,0,0.03);

  --badge-green-border: #86efac;  --badge-green-bg: #dcfce7;
  --badge-blue-border: #93c5fd;   --badge-blue-bg: #dbeafe;
  --badge-amber-border: #fcd34d;  --badge-amber-bg: #fef9c3;
  --badge-red-border: #fca5a5;    --badge-red-bg: #fee2e2;
  --badge-accent-border: #6ee7d4; --badge-accent-bg: #ccfbf1;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: Verdana, sans-serif;
  min-height: 100vh;
  padding: 2rem;
}

/* ── Layout ── */
.page {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

/* ── Scanline bar ── */
.scanline {
  width: 100%;
  height: 2px;
  background: var(--accent);
  margin-bottom: 2.5rem;
  animation: scan 3s ease-in-out infinite;
}

@keyframes scan {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ── Nav ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.nav-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--text); }

/* ── Terminal card ── */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.terminal-bar {
  background: #1a2535;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.r { background: #ff5f57; }
.dot.y { background: #febc2e; }
.dot.g { background: #28c840; }

.terminal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 2rem 2.5rem 2.5rem;
}

/* ── Content card ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem 2.5rem;
  margin-bottom: 2rem;
}

.card-title {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ── Divider ── */
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* ── Typography ── */
h1 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

h2 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
}

h5, h6 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 1rem;
  margin-bottom: 0.4rem;
}

p {
  font-size: 0.975rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* ── Inline text ── */
strong { color: var(--text); font-weight: 600; }
em     { color: var(--muted); font-style: italic; }
del    { color: var(--dim); text-decoration: line-through; }

mark {
  background: rgba(0, 212, 170, 0.15);
  color: var(--accent);
  padding: 1px 4px;
  border-radius: 3px;
}

/* ── Links ── */
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

a:hover { border-bottom-color: var(--accent); }

/* ── Inline code ── */
code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: var(--code-bg);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ── Code block ── */
pre {
  background: var(--pre-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1rem 0;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text);
  line-height: 1.7;
}

/* ── Blockquote ── */
blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1rem 0;
  background: rgba(0, 212, 170, 0.05);
  border-radius: 0 8px 8px 0;
}

blockquote p {
  color: var(--muted);
  font-style: italic;
  margin-bottom: 0;
}

/* ── Lists ── */
ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  font-size: 0.975rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 0.25rem;
}

ul li::marker { color: var(--accent); }
ol li::marker { color: var(--muted); font-family: 'JetBrains Mono', monospace; font-size: 0.85em; }

/* ── Nested list ── */
li ul, li ol { margin-top: 0.25rem; margin-bottom: 0; }

/* ── Task list ── */
ul.task-list { list-style: none; padding-left: 0; }
ul.task-list li { display: flex; align-items: flex-start; gap: 0.6rem; }

input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

/* ── Table ── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}

thead tr {
  background: var(--code-bg);
}

th {
  text-align: left;
  padding: 10px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--row-hover); }

/* ── Definition list ── */
dl { margin-bottom: 1rem; }
dt {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  color: var(--accent);
  margin-top: 0.75rem;
}
dd {
  margin-left: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── Keyboard ── */
kbd {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78em;
  background: var(--kbd-bg);
  color: var(--text);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
}

/* ── Abbreviation ── */
abbr[title] {
  text-decoration: underline dotted var(--muted);
  cursor: help;
}

/* ── Horizontal rule (thematic break) ── */
.thematic-break {
  border: none;
  border-top: 1px dashed var(--dim);
  margin: 2rem 0;
}

/* ── Badge / pill ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text);
}

.badge.green  { border-color: var(--badge-green-border);  background: var(--badge-green-bg);  color: var(--green); }
.badge.blue   { border-color: var(--badge-blue-border);   background: var(--badge-blue-bg);   color: var(--blue); }
.badge.amber  { border-color: var(--badge-amber-border);  background: var(--badge-amber-bg);  color: var(--amber); }
.badge.red    { border-color: var(--badge-red-border);    background: var(--badge-red-bg);    color: var(--red); }
.badge.accent { border-color: var(--badge-accent-border); background: var(--badge-accent-bg); color: var(--accent); }

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Theme transition ── */
body, .terminal, .card, nav, code, pre, kbd, .badge, thead tr {
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}


/* ── Footer ── */
.footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 11px;
  color: var(--dim);
  font-family: 'JetBrains Mono', monospace;
}

.footer .heart { color: var(--red); }

/* ════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════ */

/* ── Nav controls group ── */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Hamburger — oculto en escritorio */
.nav-menu-btn {
  display: none;
  background: var(--bg);
  border: 1px solid var(--dim);
  border-radius: 6px;
  padding: 5px 7px;
  cursor: pointer;
  color: var(--dim);
  line-height: 0;
  transition: color 0.2s, border-color 0.2s;
}
.nav-menu-btn:hover { color: var(--accent); border-color: var(--accent); }
.nav-menu-btn .icon-close { display: none; }
.nav-menu-btn.open .icon-menu  { display: none; }
.nav-menu-btn.open .icon-close { display: block; }

/* ── Tablet (≤ 860px) ── */
@media (max-width: 860px) {
  html, body { padding: 1.5rem; }

  .card          { padding: 1.5rem; }
  .terminal-body { padding: 1.5rem; }
}

/* ── Mobile (≤ 480px) ── */
@media (max-width: 480px) {
  html, body { padding: 1rem; }

  /* Nav: brand a la izquierda, controles a la derecha */
  nav {
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
  }

  .nav-brand   { order: 1; }
  .nav-controls { order: 2; margin-left: auto; }

  /* Hamburger visible */
  .nav-menu-btn { display: flex; align-items: center; }

  /* Links: ocultos hasta abrir menú */
  .nav-links {
    order: 3;
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.5rem;
    margin-top: 0.5rem;
  }
  .nav-links.open { display: flex; }

  .nav-links li       { width: 100%; }
  .nav-links li a     {
    display: block;
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    font-size: 13px;
    border-bottom: none;
  }
  .nav-links li a:hover { background: rgba(0,212,170,0.08); border-bottom: none; }

  /* Proyectos: desplegable inline en móvil */
  .nav-dropdown::before { display: none; }

  .nav-dropdown .dropdown-menu {
    position: static;
    transform: none;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    background: transparent;
    padding: 0.25rem 0 0.25rem 0.75rem;
    margin: 0.25rem 0 0.25rem 0.75rem;
    display: none;
    animation: none;
  }
  .nav-dropdown.mobile-open .dropdown-menu { display: flex; }
  .nav-dropdown .dropdown-menu::before { display: none; }
  .nav-dropdown:hover .dropdown-menu { visibility: visible; opacity: 1; }

  /* Tipografía */
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.15rem; }

  /* Cards */
  .card          { padding: 1rem; }
  .terminal-body { padding: 1rem; }

  /* Tablas con scroll horizontal */
  table          { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* Código */
  pre { padding: 0.875rem 1rem; }
}