/* shared styles for project pages (Project 1 and up). Needs style.css first. */
.pg{position:relative;z-index:1;width:min(100%,980px);margin:0 auto;padding:28px 20px 90px}
.pg .back{margin-bottom:10px}

/* hero */
.hero0{text-align:center;padding:18px 0 46px}
.hero0 .kicker{display:inline-block;font-weight:800;font-size:14px;color:var(--seed);background:var(--flesh);
  border:3px solid var(--seed);border-radius:999px;padding:8px 18px;box-shadow:4px 4px 0 var(--seed);rotate:-2deg}
.hero0 h1{margin:26px 0 10px;font-size:min(8.2vw,76px);line-height:.95;letter-spacing:-.035em;color:var(--lime);text-shadow:.045em .045em 0 var(--seed)}
.hero0 h1 em{font-style:normal;color:var(--flesh);white-space:nowrap}
.hero0 .sub0{margin:0 auto 28px;max-width:560px;font:400 18px/1.5 "Trebuchet MS","Segoe UI",Verdana,sans-serif;color:var(--lime)}
.hero0 img{width:min(220px,56%);aspect-ratio:4/5;object-fit:cover;object-position:50% 40%;
  border:8px solid var(--lime);border-radius:22px;box-shadow:10px 10px 0 var(--seed);rotate:-3deg}
.hero0 .who{margin:22px 0 0;font-size:22px;color:var(--lime)}

/* cards */
.c0{background:var(--lime);color:var(--seed);border:3px solid var(--seed);border-radius:26px;padding:clamp(20px,4vw,34px);box-shadow:8px 8px 0 var(--seed);margin:0 0 34px}
.c0 .tag{display:inline-block;font-weight:800;font-size:13px;padding:6px 14px;border-radius:999px;background:var(--flesh);border:3px solid var(--seed);margin-bottom:14px}
.c0 h2{margin:0 0 10px;font-size:clamp(22px,3.4vw,32px);letter-spacing:-.02em}
.c0 h3{margin:26px 0 10px;font-size:20px}
.c0 p,.c0 li{font:400 17px/1.6 "Trebuchet MS","Segoe UI",Verdana,sans-serif}
.c0 p{margin:0 0 14px}
.c0 b{font-weight:700}
.c0 code.i{font:600 .92em ui-monospace,Menlo,Consolas,monospace;background:rgba(10,31,22,.1);padding:1px 6px;border-radius:6px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
@media(max-width:820px){.grid2{grid-template-columns:1fr}}
.note{font:400 14px/1.45 "Trebuchet MS",sans-serif !important;margin:10px 0 0 !important;opacity:.85}

/* code */
pre.code{margin:0 0 14px;padding:16px 18px;background:var(--seed);color:var(--lime);border-radius:14px;overflow-x:auto;font:500 14px/1.65 ui-monospace,Menlo,Consolas,monospace;tab-size:2}
pre.code .t{color:#ff8fa0}pre.code .a{color:#9fe3b4}pre.code .s{color:#ffd978}pre.code .c{color:#7a9a86}

/* controls */
.demo{border:3px dashed var(--seed);border-radius:16px;padding:16px;background:var(--paper)}
.ctrl{display:grid;grid-template-columns:auto 1fr auto;gap:8px 12px;align-items:center;margin:0 0 14px;font:700 14px var(--font)}
.ctrl output{min-width:52px;text-align:right}
.ctrl input[type=range]{accent-color:var(--flesh);width:100%}
.seg{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 14px}
.seg button{font:800 13px var(--font);color:var(--seed);background:var(--paper);border:3px solid var(--seed);border-radius:999px;padding:10px 16px;cursor:pointer;transition:transform .12s,background .12s,box-shadow .12s}
.seg button:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 var(--seed)}
.seg button[aria-pressed=true]{background:var(--flesh)}
.seg button:focus-visible{outline:4px solid var(--seed);outline-offset:3px}

/* thumbnails (stand-ins for the lecture's video previews) */
.thumb{display:grid;place-items:center;aspect-ratio:16/9;margin:8px auto 0;max-width:210px;border-radius:6px;
  background:linear-gradient(135deg,hsl(var(--h,150) 65% 38%),hsl(calc(var(--h,150) + 50) 80% 58%))}
.thumb::after{content:"\25B6";color:#fff;font-size:12px;background:#f00;border-radius:8px;padding:5px 12px}
.plink{color:#551a8b;text-decoration:underline;cursor:pointer;font:400 inherit Arial,sans-serif}

/* 01: CSS Grid playground (slide CSS) */
.gwrap{overflow-x:auto;border-radius:6px}
#g{background-color:lightgreen;display:grid;padding:20px;grid-column-gap:20px;grid-row-gap:10px;grid-template-columns:250px 250px auto;min-width:min-content}
.grid-item{background-color:lightgray;font:400 20px Arial,Helvetica,sans-serif;padding:20px;text-align:center;color:#222;min-width:0}

/* 02: 12-column visual */
.vis{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;margin:0 0 6px}
.vis div{background:#f1f1f1;color:#333;text-align:center;padding:9px 2px;font:400 13px ui-monospace,Menlo,Consolas,monospace;border-radius:3px;min-width:0;overflow:hidden}
.vis .s1{grid-column:span 1}.vis .s4{grid-column:span 4}.vis .s6{grid-column:span 6}.vis .s8{grid-column:span 8}.vis .s12{grid-column:span 12}
@media(max-width:560px){.vis div{font-size:10px;padding:8px 0}}

/* Bootstrap-style grid (same class names as Bootstrap 4, scoped to .bs) */
.bs .container,.bs .container-fluid{width:100%;padding-left:15px;padding-right:15px;margin-left:auto;margin-right:auto}
@media(min-width:576px){.bs .container{max-width:540px}}
@media(min-width:768px){.bs .container{max-width:720px}}
@media(min-width:992px){.bs .container{max-width:960px}}
@media(min-width:1200px){.bs .container{max-width:1140px}}
.bs .row{display:flex;flex-wrap:wrap}
.bs [class*="col-"]{position:relative;width:100%;min-width:0}
.bs [class*="col-sm-"]{flex:0 0 100%;max-width:100%}
.bs .col-1{flex:0 0 8.3333%;max-width:8.3333%}.bs .col-2{flex:0 0 16.6667%;max-width:16.6667%}
.bs .col-3{flex:0 0 25%;max-width:25%}.bs .col-4{flex:0 0 33.3333%;max-width:33.3333%}
.bs .col-5{flex:0 0 41.6667%;max-width:41.6667%}.bs .col-6{flex:0 0 50%;max-width:50%}
.bs .col-7{flex:0 0 58.3333%;max-width:58.3333%}.bs .col-8{flex:0 0 66.6667%;max-width:66.6667%}
.bs .col-9{flex:0 0 75%;max-width:75%}.bs .col-10{flex:0 0 83.3333%;max-width:83.3333%}
.bs .col-11{flex:0 0 91.6667%;max-width:91.6667%}.bs .col-12{flex:0 0 100%;max-width:100%}
@media(min-width:576px){
  .bs .col-sm-2{flex:0 0 16.6667%;max-width:16.6667%}.bs .col-sm-4{flex:0 0 33.3333%;max-width:33.3333%}
  .bs .col-sm-6{flex:0 0 50%;max-width:50%}.bs .col-sm-8{flex:0 0 66.6667%;max-width:66.6667%}
  .bs .col-sm-10{flex:0 0 83.3333%;max-width:83.3333%}
}
.bs .row > div{padding:8px;background-color:lightskyblue;border:1px solid navy;text-align:center;font:400 16px Arial,sans-serif;color:#10316b}
.bs .bsstage{background:#fae5a6;padding:14px 0;border-radius:10px}
.bs .row.lav > div{border:0;background:none}
.lavbox{padding:14px 8px;text-align:center;font:700 15px ui-monospace,Menlo,Consolas,monospace;color:#333}
.sim{background:#e8eef6;border-radius:12px;padding:14px;font:700 13px ui-monospace,Menlo,Consolas,monospace;color:#222}
.sim .bar{height:30px;margin:6px 0 12px;border-radius:5px;display:flex;align-items:center;justify-content:center;white-space:nowrap;overflow:hidden;transition:width .12s}
.sim .b-win{background:#333;color:#fff}.sim .b-fluid{background:var(--flesh)}.sim .b-cont{background:#8dd6a6;margin-left:auto;margin-right:auto}
.sim .bwrap{width:100%}

/* 04: the exercise menu (CSS Grid) */
.menu{display:grid;grid-template-columns:1fr 1fr;gap:6px 20px;padding:18px 20px 22px;background:#c3cdee;border:3px solid var(--seed);border-radius:18px;box-shadow:6px 6px 0 var(--seed);text-align:center}
.menu h2{grid-column:1 / -1;margin:0;font:400 clamp(22px,3.6vw,34px)/1.2 Arial,Helvetica,sans-serif;color:#222}
.menu a{font:400 clamp(22px,3.6vw,34px)/1.3 Arial,Helvetica,sans-serif;color:#0a6cff;text-decoration:none;padding:6px;border-radius:10px;transition:background .15s,color .15s}
.menu a:hover{background:var(--seed);color:var(--lime)}
.menu a:focus-visible{outline:4px solid var(--seed);outline-offset:2px}
.files{list-style:none;margin:0 0 14px;padding:0;font:600 15px ui-monospace,Menlo,Consolas,monospace}
.files li{padding:8px 12px;margin:0 0 6px;background:var(--paper);border:3px solid var(--seed);border-radius:10px;font:600 15px ui-monospace,Menlo,Consolas,monospace}
.files li span{font:400 13px "Trebuchet MS",sans-serif;opacity:.7;margin-left:8px}

.nav0{display:flex;justify-content:space-between;gap:16px;font-weight:700;font-size:15px}
.nav0 a{color:var(--lime);text-decoration:none;border-bottom:3px solid var(--flesh)}
.nav0 a:hover{background:var(--flesh);color:var(--seed)}

/* pill nav + card grid for Front / Back pages */
.pills{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;padding:0;list-style:none}
.pills a,.pills span{display:block;font:700 14px Arial,sans-serif;padding:9px 16px;border-radius:999px;text-decoration:none;color:var(--lime);border:3px solid transparent}
.pills a:hover{border-color:var(--lime)}
.pills a[aria-current]{background:#0a6cff;color:#fff;border-color:var(--seed);box-shadow:3px 3px 0 var(--seed)}
.pills span{opacity:.5}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;max-width:560px;margin:34px auto 0}
.cards a{display:block;text-align:center;padding:26px 16px;background:#c3cdee;color:#0a6cff;font:700 17px/1.4 var(--font);text-decoration:none;
  border:3px solid var(--seed);border-radius:16px;box-shadow:6px 6px 0 var(--seed);transition:transform .12s,box-shadow .12s,background .12s}
.cards a:hover{transform:translate(-2px,-2px);box-shadow:9px 9px 0 var(--seed);background:var(--flesh);color:var(--seed)}
.cards a:focus-visible{outline:4px solid var(--lime);outline-offset:4px}
.cards small{display:block;margin-top:6px;font:400 14px Arial,sans-serif;color:inherit;opacity:.8}