/* ==========================================================================
   Plan de estudio Java / Spring / Cloud — hoja de estilos compartida
   ========================================================================== */

:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --bg-card: #11161d;
  --border: #262d38;
  --text: #e6edf3;
  --text-dim: #9aa7b4;
  --accent: #f89820;      /* naranja Java */
  --accent-2: #6db33f;    /* verde Spring */
  --accent-3: #58a6ff;    /* azul enlaces */
  --danger: #f85149;
  --warn: #d29922;
  --ok: #3fb950;
  --radius: 12px;
  --mono: "JetBrains Mono", "Fira Code", "Cascadia Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 8px 24px rgba(0, 0, 0, .35);
}

html[data-theme="light"] {
  --bg: #f6f8fa;
  --bg-soft: #ffffff;
  --bg-card: #ffffff;
  --border: #d8dee4;
  --text: #1f2328;
  --text-dim: #59636e;
  --accent: #b96700;
  --accent-2: #4f8a2c;
  --accent-3: #0969da;
  --shadow: 0 6px 18px rgba(31, 35, 40, .08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------- Cabecera ------------------------------- */

header.top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-soft) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.top-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
}

.brand .logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  color: #0d1117; font-weight: 900; font-size: 15px;
}

nav.main { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }

nav.main a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 14px;
  white-space: nowrap;
}
nav.main a:hover { background: var(--bg); color: var(--text); }
nav.main a.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }

.icon-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
}
.icon-btn:hover { color: var(--text); border-color: var(--accent); }

/* -------------------------------- Layout -------------------------------- */

.layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 20px 80px;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}
.layout.no-aside { grid-template-columns: minmax(0, 1fr); }

aside.toc {
  position: sticky;
  top: 74px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  border-left: 2px solid var(--border);
  padding-left: 14px;
  font-size: 14px;
}
aside.toc h4 {
  margin: 0 0 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-dim);
}
aside.toc a {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 0;
  border-radius: 6px;
}
aside.toc a:hover { color: var(--accent-3); }
aside.toc a.active { color: var(--accent); font-weight: 600; }
aside.toc a.sub { padding-left: 12px; font-size: 13px; opacity: .85; }

main { min-width: 0; }

/* ----------------------------- Tipografía ------------------------------ */

h1 { font-size: 2.1rem; line-height: 1.2; letter-spacing: -.03em; margin: 0 0 8px; }
h2 {
  font-size: 1.5rem;
  margin: 46px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -.02em;
  scroll-margin-top: 80px;
}
h3 { font-size: 1.15rem; margin: 28px 0 10px; color: var(--accent); scroll-margin-top: 80px; }
h4 { font-size: 1rem; margin: 20px 0 8px; }
p { margin: 0 0 14px; }
a { color: var(--accent-3); }
ul, ol { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }
strong { color: var(--text); }
code {
  font-family: var(--mono);
  font-size: .875em;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 5px;
}
pre {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.6;
  position: relative;
}
pre code { background: none; border: none; padding: 0; font-size: inherit; }

.lead { font-size: 1.08rem; color: var(--text-dim); margin-bottom: 24px; }

/* Tokens del resaltador ligero de assets/app.js */
.tok-c { color: #7d8590; font-style: italic; }
.tok-s { color: #a5d6ff; }
.tok-k { color: #ff7b72; }
.tok-a { color: #d2a8ff; }
.tok-n { color: #79c0ff; }
html[data-theme="light"] .tok-c { color: #6e7781; }
html[data-theme="light"] .tok-s { color: #0a3069; }
html[data-theme="light"] .tok-k { color: #cf222e; }
html[data-theme="light"] .tok-a { color: #8250df; }
html[data-theme="light"] .tok-n { color: #0550ae; }

/* ------------------------------- Tarjetas ------------------------------- */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 18px;
}
.card > :last-child { margin-bottom: 0; }

.grid { display: grid; gap: 16px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid.c4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.topic-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.topic-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.topic-card .num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: .1em;
}
.topic-card h3 { margin: 6px 0 6px; color: var(--text); font-size: 1.05rem; }
.topic-card p { color: var(--text-dim); font-size: 14px; margin: 0; }

/* ------------------------------- Insignias ------------------------------ */

.badge {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: var(--bg-soft);
  letter-spacing: .02em;
  white-space: nowrap;
}
.badge.core   { color: var(--accent);   border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.badge.spring { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 45%, transparent); }
.badge.data   { color: var(--accent-3); border-color: color-mix(in srgb, var(--accent-3) 45%, transparent); }
.badge.hot    { color: var(--danger);   border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.badge.new    { color: var(--warn);     border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.badge-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }

/* --------------------------------- Notas -------------------------------- */

.note, .tip, .warning, .danger-box {
  border-left: 4px solid var(--accent-3);
  background: color-mix(in srgb, var(--accent-3) 8%, transparent);
  padding: 12px 16px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 0 0 18px;
  font-size: 15px;
}
.tip { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 8%, transparent); }
.warning { border-color: var(--warn); background: color-mix(in srgb, var(--warn) 9%, transparent); }
.danger-box { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); }
.note > :last-child, .tip > :last-child, .warning > :last-child, .danger-box > :last-child { margin-bottom: 0; }
.note b, .tip b, .warning b, .danger-box b { display: inline-block; margin-right: 4px; }

/* --------------------------------- Tablas ------------------------------- */

.table-wrap { overflow-x: auto; margin-bottom: 18px; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--bg-soft); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); }
tr:last-child td { border-bottom: none; }
td code { white-space: nowrap; }

/* ------------------------------ Checklists ------------------------------ */

.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--border);
}
.checklist li:last-child { border-bottom: none; }
.checklist input[type="checkbox"] {
  margin-top: 5px;
  width: 17px; height: 17px;
  accent-color: var(--accent-2);
  cursor: pointer;
  flex: 0 0 auto;
}
.checklist label { cursor: pointer; font-size: 15px; }
.checklist li.done label { text-decoration: line-through; color: var(--text-dim); }

/* ------------------------------- Progreso ------------------------------- */

.progress {
  height: 9px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress > span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  width: 0%;
  transition: width .3s ease;
}
.progress-label { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }

.stat { text-align: center; }
.stat .v { font-size: 1.9rem; font-weight: 800; color: var(--accent); letter-spacing: -.03em; line-height: 1.1; }
.stat .k { font-size: 12.5px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; }

/* ------------------------------ Cronograma ------------------------------ */

.week {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--bg-card);
}
.week > header {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 14px 18px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.week > header h3 { margin: 0; color: var(--text); font-size: 1.1rem; }
.week > header .goal { color: var(--text-dim); font-size: 14px; margin-left: auto; }
.week .body { padding: 16px 18px; }

.day {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.day:last-child { border-bottom: none; }
.day .d { font-family: var(--mono); font-size: 13px; color: var(--accent); font-weight: 600; }
.day h5 { margin: 0 0 4px; font-size: 15px; }
.day p { margin: 0; font-size: 14px; color: var(--text-dim); }

/* -------------------------------- Búsqueda ------------------------------ */

.search-box { position: relative; }
.search-box input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-family: inherit;
  font-size: 14px;
  width: 210px;
}
.search-box input:focus { outline: none; border-color: var(--accent); }
.search-results {
  position: absolute; top: 110%; right: 0;
  width: 340px; max-height: 60vh; overflow-y: auto;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: none;
  z-index: 100;
}
.search-results.open { display: block; }
.search-results a {
  display: block; padding: 9px 14px; text-decoration: none;
  color: var(--text); font-size: 14px; border-bottom: 1px solid var(--border);
}
.search-results a:last-child { border-bottom: none; }
.search-results a:hover { background: var(--bg); }
.search-results a small { display: block; color: var(--text-dim); font-size: 12.5px; }
.search-results .empty { padding: 14px; color: var(--text-dim); font-size: 14px; }

/* ------------------------------ Utilidades ------------------------------ */

.kbd {
  font-family: var(--mono); font-size: 12px;
  border: 1px solid var(--border); border-bottom-width: 2px;
  background: var(--bg-soft); padding: 1px 6px; border-radius: 5px;
}
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 50px; padding-top: 20px; border-top: 1px solid var(--border); }
.pager a { text-decoration: none; font-size: 14px; }
.muted { color: var(--text-dim); }
.small { font-size: 13.5px; }
.center { text-align: center; }
.mb0 { margin-bottom: 0; }
.hero {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  background:
    radial-gradient(1000px 300px at 12% -20%, color-mix(in srgb, var(--accent) 16%, transparent), transparent),
    radial-gradient(800px 300px at 95% 0%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent),
    var(--bg-card);
  margin-bottom: 28px;
}
details.q {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0;
  margin-bottom: 10px;
  background: var(--bg-card);
  overflow: hidden;
}
details.q > summary {
  cursor: pointer;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  display: flex; gap: 10px; align-items: flex-start;
}
details.q > summary::-webkit-details-marker { display: none; }
details.q > summary::before { content: "▸"; color: var(--accent); flex: 0 0 auto; }
details.q[open] > summary::before { content: "▾"; }
details.q[open] > summary { border-bottom: 1px solid var(--border); }
details.q .answer { padding: 14px 16px 4px 16px; font-size: 15px; }
details.q .answer > :last-child { margin-bottom: 14px; }

.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: var(--bg); border: 1px solid var(--border); color: var(--text-dim);
  font-size: 11.5px; padding: 3px 8px; border-radius: 6px; cursor: pointer;
  opacity: 0; transition: opacity .15s;
  font-family: var(--sans);
}
pre:hover .copy-btn { opacity: 1; }
.copy-btn:hover { color: var(--text); border-color: var(--accent); }

footer.site {
  border-top: 1px solid var(--border);
  padding: 24px 20px 40px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13.5px;
}

/* -------------------------------- Responsive ---------------------------- */

@media (max-width: 1000px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  aside.toc { position: static; max-height: none; border-left: none; border-top: 1px solid var(--border); padding: 14px 0 0; order: 2; }
  nav.main { width: 100%; margin-left: 0; overflow-x: auto; }
  .search-box input { width: 100%; }
  .search-results { width: 100%; }
}
@media (max-width: 560px) {
  body { font-size: 15.5px; }
  h1 { font-size: 1.65rem; }
  .day { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .layout { padding: 18px 14px 60px; }
  .hero { padding: 20px; }
}

@media print {
  header.top, aside.toc, .copy-btn, .pager { display: none; }
  body { background: #fff; color: #000; }
  .layout { display: block; }
  details.q { break-inside: avoid; }
  details.q > summary { list-style: none; }
  pre { white-space: pre-wrap; }
}