/* PHPlay - curso de PHP en texto (páginas estáticas) */
@font-face { font-family: 'Press Start 2P'; src: url('../assets/fonts/PressStart2P.woff2') format('woff2'); font-display: swap; }

:root {
  --ink: #181425; --night: #262b44; --slate: #3a4466; --fog: #8b9bb4; --cloud: #c0cbdc;
  --paper: #fbf5e9; --text: #262b44; --muted: #5a6988; --line: #e4d5b7;
  --php: #777bb4; --php2: #4f5b93; --green: #3e8948; --gold: #feae34; --red: #a22633;
  --f-title: 'Press Start 2P', monospace;
  --f-body: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --f-code: ui-monospace, 'Cascadia Code', 'SFMono-Regular', Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--text); font: 18px/1.65 var(--f-body); }
a { color: var(--php2); }
a:hover { color: var(--ink); }
img { max-width: 100%; }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: var(--ink); border-bottom: 4px solid var(--php2); }
.brand { font-family: var(--f-title); font-size: 16px; color: #fff; text-decoration: none; text-shadow: 3px 3px 0 var(--php2); }
.brand span { color: var(--gold); }
.top nav { display: flex; gap: 14px; align-items: center; }
.top nav a { color: var(--cloud); text-decoration: none; font-size: 15px; }
.top nav a:hover { color: #fff; }
.top nav a.cta, .btn { font-family: var(--f-title); font-size: 11px; line-height: 1.2; color: #fff; background: var(--green); padding: 10px 12px; border: 3px solid var(--ink); box-shadow: inset -3px -3px 0 rgba(0,0,0,.3), inset 3px 3px 0 rgba(255,255,255,.25); text-decoration: none; display: inline-block; white-space: nowrap; }
.btn:hover, .top nav a.cta:hover { filter: brightness(1.12); color: #fff; }

.wrap { max-width: 820px; margin: 0 auto; padding: 16px 16px 48px; }
.crumbs { font-size: 14px; color: var(--muted); margin: 4px 0 18px; }
.crumbs a { color: var(--muted); }
.kicker { font-family: var(--f-title); font-size: 10px; overflow-wrap: anywhere; line-height: 1.8; color: var(--php2); margin: 0 0 10px; text-transform: uppercase; }
h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.2; margin: 0 0 14px; color: var(--ink); }
h2 { font-size: 26px; line-height: 1.3; margin: 42px 0 12px; color: var(--ink); padding-top: 10px; border-top: 3px dashed var(--line); }
h3 { font-size: 20px; margin: 26px 0 8px; color: var(--ink); }
h4, h5 { font-size: 18px; margin: 20px 0 6px; }
.lead { font-size: 20px; color: #3a4466; }
section { scroll-margin-top: 80px; }
ul, ol { padding-left: 24px; }
li { margin: 4px 0; }

.play { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; background: var(--ink); color: var(--cloud); padding: 16px; margin: 20px 0; border: 3px solid var(--ink); box-shadow: 0 0 0 3px var(--php2); }
.play p { margin: 0; flex: 1 1 320px; font-size: 16px; }
.play b { color: #fff; }

.toc { background: #fff; border: 3px solid var(--line); padding: 12px 16px; margin: 20px 0; }
.toc-t { font-family: var(--f-title); font-size: 10px; margin-bottom: 8px; color: var(--php2); }
.toc ol { margin: 0; columns: 2 260px; }

code.ic, :not(pre) > code { font-family: var(--f-code); font-size: .88em; background: rgba(79, 91, 147, .12); color: #68386c; padding: 1px 5px; border-radius: 2px; }
pre.code, pre.plain, .out pre { font-family: var(--f-code); font-size: 15px; line-height: 1.5; background: var(--ink); color: var(--cloud); padding: 14px 16px; overflow-x: auto; border: 3px solid var(--night); margin: 0 0 14px; white-space: pre; }
pre.code code { font: inherit; background: none; color: inherit; padding: 0; }
pre.plain { background: #fff; color: var(--text); border-color: var(--line); }
.out { margin: -14px 0 16px; }
.file-name { font-family: var(--f-code); font-size: 14px; margin: 0; padding: 4px 10px; background: var(--night); color: #fff; display: inline-block; }
.file-name + pre.code, .file-name + pre.plain { margin-top: 0; }
.out-t { font-family: var(--f-title); font-size: 9px; color: #fff; background: var(--green); display: inline-block; padding: 5px 8px; }
.out pre { background: #0f1a14; color: #b8f2a8; border-color: #0f1a14; margin: 0; white-space: pre-wrap; }
.tk-kw, .tk-op { color: #ff79c6; } .tk-var, .tk-ivar { color: #8be9fd; } .tk-this { color: #f77622; } .tk-str { color: #f1fa8c; }
.tk-num { color: #bd93f9; } .tk-comment { color: #8792b3; font-style: italic; } .tk-fn, .tk-method { color: #7ee06a; }
.tk-const { color: #feae34; } .tk-class { color: #f6757a; } .tk-tag { color: #f77622; } .tk-type { color: #2ce8f5; }
.tk-punc { color: #c0cbdc; } .tk-prop { color: #e8b796; } .tk-html { color: #9aa8c4; }

.note { border-left: 6px solid var(--php2); padding: 10px 14px; margin: 0 0 16px; background: #e8e9f7; }
.note-t { font-family: var(--f-title); font-size: 9px; margin-bottom: 6px; color: var(--php2); text-transform: uppercase; }
.note p:last-child { margin-bottom: 0; }
.note-warn { background: #fbe0db; border-color: var(--red); } .note-warn .note-t { color: var(--red); }
.note-tip { background: #dff3d8; border-color: var(--green); } .note-tip .note-t { color: var(--green); }
.kbd { font-family: var(--f-title); font-size: 10px; background: var(--slate); color: #fff; padding: 2px 5px; border-bottom: 3px solid var(--ink); }

.quiz, .ex { background: #fff; border: 3px solid var(--line); padding: 14px 16px; margin: 18px 0; }
.quiz-t { font-family: var(--f-title); font-size: 9px; color: #d77643; }
.quiz p:first-of-type { margin-top: 6px; }
details { margin: 10px 0 0; }
summary { cursor: pointer; font-weight: 600; color: var(--php2); }
.ex h3 { margin-top: 0; }
.tag { font-family: var(--f-title); font-size: 9px; background: var(--php2); color: #fff; padding: 4px 6px; vertical-align: middle; margin-right: 4px; }
.story { font-style: italic; color: var(--muted); }
.note-game { font-size: 15px; background: #fdf0d3; padding: 8px 10px; }
.qs > li { margin-bottom: 14px; }
.cheat { background: #fff; border: 3px solid var(--php2); padding: 4px 18px 10px; margin-top: 42px; }
.cheat h2 { border: 0; margin-top: 14px; }

.cards { list-style: none; padding: 0; display: grid; gap: 14px; }
.card { background: #fff; border: 3px solid var(--line); padding: 14px 16px; margin: 0; }
.card a { display: flex; gap: 12px; align-items: baseline; text-decoration: none; }
.card h2 { font-size: 20px; margin: 0; padding: 0; border: 0; color: var(--php2); }
.card a:hover h2 { color: var(--ink); text-decoration: underline; }
.card .num { font-family: var(--f-title); font-size: 11px; color: #fff; background: var(--php2); padding: 5px 7px; flex: none; }
.card p { margin: 8px 0 0; font-size: 16px; }
.card .topics { color: var(--muted); font-size: 14px; }

.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.pager a { font-weight: 600; text-decoration: none; background: #fff; border: 3px solid var(--line); padding: 10px 14px; }
.foot { background: var(--ink); color: var(--fog); font-size: 14px; padding: 20px 16px; text-align: center; }
.foot a { color: var(--cloud); }

@media (max-width: 560px) {
  body { font-size: 17px; }
  .top nav a:not(.cta) { display: none; }
  pre.code, pre.plain, .out pre { font-size: 13.5px; }
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #1a1c2c; --text: #dfe4ee; --muted: #9aa8c4; --line: #3a4466; }
  h1, h2, h3, .card a:hover h2 { color: #fff; }
  .lead { color: var(--cloud); }
  a, summary, .card h2 { color: #a9aee0; }
  .toc, .quiz, .ex, .card, .pager a, .cheat, pre.plain { background: #262b44; }
  pre.plain { color: var(--text); }
  .note { background: #2b2f52; } .note-warn { background: #3d2230; } .note-tip { background: #1f3a2b; }
  .note-game { background: #3a3022; }
  code.ic, :not(pre) > code { color: #f0b4e0; background: rgba(169,174,224,.14); }
}