/* learn.uzytak.com/vibe — «Vibe coding dla dzieci» online tasks. No tracking, no login, no ads. */
:root {
  --ink: #1d2433; --mute: #5b6475; --bg: #fffaf0; --card: #ffffff; --line: #e6dfcf;
  --blue: #2f6fd6; --sky: #e8f1ff; --sun: #ffc93c; --sunl: #fff4cf; --coral: #ff7a59; --corall: #ffe7df;
  --mint: #2fb67c; --mintl: #ddf6ea; --red: #e5484d; --redl: #fde4e4; --violet: #7b5cd6; --violetl: #eee8ff;
  --r: 18px; --shadow: 0 2px 0 rgba(0,0,0,.06), 0 8px 24px rgba(30,40,60,.06);
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #eef1f7; --mute: #a8b0c0; --bg: #161a22; --card: #1f2430; --line: #323a4a; --sky: #1d2b44; --sunl: #3a3220;
    --corall: #3d2620; --mintl: #173528; --redl: #3d1d20; --violetl: #2a2342; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 18px/1.5 Nunito, "Segoe UI", system-ui, sans-serif; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-600.woff2) format("woff2"); font-weight: 400 700; font-display: swap; unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-ext-600.woff2) format("woff2"); font-weight: 400 700; font-display: swap; unicode-range: U+0100-024F, U+1E00-1EFF; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-800.woff2) format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-ext-800.woff2) format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+0100-024F, U+1E00-1EFF; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-900.woff2) format("woff2"); font-weight: 900; font-display: swap; unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122; }
@font-face { font-family: Nunito; src: url(fonts/nunito-latin-ext-900.woff2) format("woff2"); font-weight: 900; font-display: swap; unicode-range: U+0100-024F, U+1E00-1EFF; }
a { color: var(--blue); }
img { max-width: 100%; }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
header.top { background: var(--card); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 12px; min-height: 58px; flex-wrap: wrap; }
.logo { font-weight: 900; letter-spacing: .14em; color: var(--ink); text-decoration: none; }
.logo small { letter-spacing: 0; font-weight: 700; color: var(--coral); margin-left: 6px; }
header.top nav { margin-left: auto; display: flex; gap: 14px; font-weight: 700; font-size: 16px; }
header.top nav a { text-decoration: none; }
h1 { font-size: clamp(28px, 6vw, 44px); line-height: 1.1; margin: 18px 0 8px; font-weight: 900; }
h2 { font-size: 24px; margin: 28px 0 10px; font-weight: 800; }
h3, h4, b, strong, summary { font-weight: 800; }
.lead { font-size: 20px; color: var(--mute); margin: 0 0 16px; }
.chip-lab { display: inline-block; background: var(--blue); color: #fff; border-radius: 99px; padding: 3px 12px; font-weight: 800; font-size: 14px; margin-top: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow); margin: 16px 0; }
.recap { background: var(--sky); border: 0; }
.recap p { margin: 0 0 8px; }
.tip { display: flex; gap: 12px; align-items: center; background: var(--mintl); border-radius: var(--r); padding: 12px 16px; margin: 18px 0; }
.tip img { width: 64px; flex: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 10px 20px; border-radius: 14px;
  border: 2px solid transparent; background: var(--blue); color: #fff; font: inherit; font-weight: 800; cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.07); }
.btn:focus-visible, .tap:focus-visible, .opt:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }
.btn.ghost { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn.sun { background: var(--sun); color: #1d2433; }
.btn.mint { background: var(--mint); }
.btn.coral { background: var(--coral); }
.btn[disabled] { opacity: .45; cursor: default; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.pager { display: flex; justify-content: space-between; gap: 10px; margin: 26px 0 40px; flex-wrap: wrap; }
footer.bot { border-top: 1px solid var(--line); color: var(--mute); font-size: 15px; padding: 18px 0 30px; }
.msg { border-radius: 14px; padding: 12px 14px; margin-top: 12px; font-weight: 700; }
.msg.ok { background: var(--mintl); } .msg.bad { background: var(--redl); } .msg.info { background: var(--sunl); }
.hidden { display: none !important; }

/* home */
.hero { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: end; padding-top: 10px; }
.hero .kids { display: flex; align-items: end; gap: 4px; }
.hero .kids img { height: 170px; width: auto; }
.gamecta { display: flex; gap: 16px; align-items: center; background: var(--sunl); border-radius: var(--r); padding: 18px; flex-wrap: wrap; }
.gamecta h2 { margin: 0 0 4px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; padding: 0; list-style: none; }
.tiles a { display: flex; gap: 12px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); min-height: 84px; }
.tiles a:hover { border-color: var(--blue); }
.tiles b.n { flex: none; width: 42px; height: 42px; border-radius: 50%; background: var(--blue); color: #fff; display: grid; place-items: center; font-size: 20px; }
.tiles span small { display: block; color: var(--mute); font-size: 15px; }
@media (max-width: 620px) { .hero { grid-template-columns: 1fr; } .hero .kids img { height: 120px; } }

/* game */
.game { background: var(--card); border: 3px solid var(--ink); border-radius: 24px; padding: 18px; max-width: 560px; margin: 16px auto; box-shadow: 0 6px 0 var(--ink); }
.game .bar { display: flex; justify-content: space-between; font-weight: 800; gap: 8px; flex-wrap: wrap; }
.game .riddle { font-size: 22px; font-weight: 800; text-align: center; min-height: 3.2em; margin: 16px 0; display: grid; place-items: center; }
.game .opts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.opt { background: var(--sky); border: 3px solid transparent; border-radius: 18px; padding: 10px 6px; font: inherit; font-weight: 800; color: var(--ink); cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 6px; min-height: 120px; }
.opt img { width: 64px; height: 64px; }
.opt:hover { border-color: var(--blue); }
.opt.right { background: var(--mintl); border-color: var(--mint); }
.opt.wrong { background: var(--redl); border-color: var(--red); }
.game .result { text-align: center; font-size: 26px; font-weight: 900; min-height: 1.6em; margin: 10px 0 4px; }
.game .result.ok { color: var(--mint); } .game .result.bad { color: var(--red); }
.game .end { text-align: center; }
.game .end .big { font-size: 48px; font-weight: 900; }
.plain .game { border: 1px solid #999; box-shadow: none; border-radius: 0; font-family: "Times New Roman", serif; }
.plain .opt { background: #eee; border-radius: 0; border: 1px solid #999; }
.engineer { margin-top: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; font-size: 14px; }
.engineer div { border-radius: 12px; padding: 8px; background: var(--sky); text-align: center; transition: transform .2s, background .2s; }
.engineer div.on { background: var(--sun); color: #1d2433; transform: scale(1.06); }
.log { font: 14px/1.4 ui-monospace, Consolas, monospace; background: #10141c; color: #b9f6ca; border-radius: 12px; padding: 10px; max-height: 160px; overflow: auto; margin-top: 10px; white-space: pre-wrap; }
@media (max-width: 460px) { .opt { min-height: 100px; font-size: 15px; } .opt img { width: 48px; height: 48px; } .game .riddle { font-size: 19px; } }

/* activities */
.tap { display: inline-flex; align-items: center; gap: 8px; background: var(--card); border: 2px solid var(--line); border-radius: 14px; padding: 8px 12px; font: inherit; font-weight: 700; color: var(--ink); cursor: pointer; min-height: 44px; text-align: left; }
.tap.sel { border-color: var(--blue); background: var(--sky); }
.tap.on { border-color: var(--mint); background: var(--mintl); }
.tap.bad { border-color: var(--red); background: var(--redl); }
.tap img { width: 26px; height: 26px; }
.pool { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.bins { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.bin { border: 2px dashed var(--blue); border-radius: 16px; padding: 10px; min-height: 110px; cursor: pointer; }
.bin h4 { margin: 0 0 8px; color: var(--blue); }
.bin .pool { margin: 0; }
.preview { border: 2px solid var(--line); border-radius: 16px; padding: 14px; background: var(--card); min-height: 120px; }
.code { font: 14px/1.45 ui-monospace, Consolas, monospace; background: #10141c; color: #e6edf3; border-radius: 12px; padding: 12px; overflow-x: auto; white-space: pre; margin: 8px 0; }
.code .k { color: #79c0ff; } .code .s { color: #a5d6ff; } .code .c { color: #8b949e; }
.tree { list-style: none; padding-left: 0; margin: 0; }
.tree ul { list-style: none; padding-left: 22px; margin: 0; }
.tree button { background: none; border: 0; font: inherit; color: var(--ink); cursor: pointer; padding: 6px 4px; min-height: 40px; }
.tree button:hover { color: var(--blue); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 680px) { .split { grid-template-columns: 1fr; } }

/* restaurant */
.resto { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; position: relative; }
.resto .room { border-radius: 16px; padding: 10px 6px; text-align: center; background: var(--sky); min-height: 120px; font-weight: 800; font-size: 15px; transition: background .3s, transform .3s; }
.resto .room span { display: block; font-size: 34px; }
.resto .room small { display: block; font-weight: 600; color: var(--mute); }
.resto .room.on { background: var(--sun); color: #1d2433; transform: translateY(-4px); }
.resto .room.on small { color: #3a3a3a; }
@media (max-width: 560px) { .resto { grid-template-columns: repeat(2, 1fr); } }

table.db { border-collapse: collapse; width: 100%; margin: 8px 0; }
table.db th, table.db td { border: 2px solid var(--line); padding: 8px; text-align: left; min-width: 70px; }
table.db th { background: var(--sky); }
table.db td.new, table.db th.new { background: var(--sunl); }
table.db td.slot { cursor: pointer; color: var(--mute); }
.meter { height: 16px; border-radius: 99px; background: var(--line); overflow: hidden; margin: 10px 0; }
.meter i { display: block; height: 100%; background: var(--mint); width: 0; transition: width .3s; }
.timeline { display: flex; gap: 8px; overflow-x: auto; padding: 6px 2px 12px; }
.timeline .tap { flex: none; flex-direction: column; min-width: 120px; align-items: center; }
.bugzone { position: relative; }
.bugzone [data-bug] { cursor: pointer; border-radius: 8px; }
.bugzone [data-bug]:hover { outline: 2px dashed var(--coral); }
.bugzone .found { outline: 3px solid var(--red) !important; }
.bugzone .fine { outline: 3px solid var(--mint) !important; }
.scene { display: flex; gap: 10px; align-items: flex-start; }
.scene img { width: 44px; border-radius: 50%; flex: none; }
.printcard { border: 2px solid var(--ink); border-radius: 16px; padding: 14px; background: var(--card); }
@media print { header.top, footer.bot, .pager, .noprint { display: none !important; } body { background: #fff; color: #000; } }