/* Full Time REP — Classroom lesson pages. One file styles all lessons. v3 */
:root{
  --ink:#222A39;
  --ink-deep:#181F2C;
  --orange:#E8823C;
  --orange-hot:#F29352;
  --orange-deep:#C2660E;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --line:#E8E3D8;
  --body:#3A414E;
  --mut:#79808F;
  --good:#2E9E6B;
  --bad:#C24F42;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);font:17px/1.75 "Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:720px;margin:0 auto;padding:0 26px}
a{color:var(--orange-deep);text-underline-offset:3px}
::selection{background:rgba(232,130,60,.25)}

/* reading progress */
.progress{position:fixed;top:0;left:0;right:0;height:4px;z-index:50;pointer-events:none}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--orange),var(--orange-hot))}

/* hero */
.hero{background:linear-gradient(160deg,#2A3448 0%,var(--ink) 45%,var(--ink-deep) 100%);color:#fff;padding:76px 0 60px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;border-radius:50%;background:radial-gradient(circle,rgba(232,130,60,.22) 0%,transparent 65%)}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:5px;background:linear-gradient(90deg,var(--orange),var(--orange-hot))}
.crumb{font:700 11.5px/1 "Inter",sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--orange-hot);margin:0 0 20px}
.hero h1{font-family:"Baloo 2","Inter",sans-serif;font-weight:800;font-size:clamp(33px,5.4vw,50px);line-height:1.07;color:var(--orange);margin:0 0 18px;letter-spacing:-.015em}
.hero .sub{font-size:18.5px;line-height:1.65;color:#C6CCDA;max-width:58ch;margin:0 0 28px}
.meta{display:flex;flex-wrap:wrap;gap:10px;position:relative}
.meta span{font:600 13px/1 "Inter",sans-serif;color:#E9ECF3;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);padding:9px 15px;border-radius:100px;backdrop-filter:blur(2px)}

/* toc */
.toc{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px 28px;margin:-32px 0 52px;position:relative;box-shadow:0 18px 40px rgba(24,31,44,.10)}
.toc p{margin:0 0 10px;font:700 11.5px/1 "Inter",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}
.toc ol{margin:0;padding-left:20px;columns:1}
.toc li{margin:6px 0;font-size:15.5px}
.toc a{color:var(--ink);text-decoration:none;font-weight:600;transition:color .15s}
.toc a:hover{color:var(--orange-deep)}

/* sections */
main section{margin:0 0 56px}
h2{display:flex;align-items:baseline;gap:14px;font-family:"Baloo 2","Inter",sans-serif;font-weight:800;font-size:27px;line-height:1.22;color:var(--ink);margin:0 0 16px;scroll-margin-top:36px}
h2 .n{flex:0 0 auto;font:800 26px/1 "Baloo 2",sans-serif;color:var(--orange);min-width:26px}
h3{font-family:"Baloo 2","Inter",sans-serif;font-weight:700;font-size:19.5px;color:var(--ink);margin:28px 0 8px}
p{margin:0 0 17px}
ul,ol{margin:0 0 17px;padding-left:24px}
li{margin-bottom:10px}
strong{color:var(--ink)}

/* the other side of the table — Julian insight */
.table-side{background:linear-gradient(0deg,rgba(232,130,60,.05),rgba(232,130,60,.05)),var(--paper);border:1px solid #EAD9C6;border-left:4px solid var(--orange);border-radius:14px;padding:22px 26px;margin:6px 0 22px}
.table-side .tag{font:700 11px/1 "Inter",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--orange-deep);margin:0 0 9px}
.table-side p:last-child{margin:0}

/* copyable script blocks */
.script{position:relative;background:linear-gradient(150deg,#2A3448,var(--ink) 70%);color:#EEF0F6;border-radius:16px;padding:22px 26px;margin:0 0 20px;box-shadow:0 12px 28px rgba(24,31,44,.16)}
.script .lbl{font:700 11px/1.4 "Inter",sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--orange-hot);margin:0 0 11px;padding-right:76px}
.script p{margin:0;font-size:16.5px;line-height:1.68}
.script p + p{margin-top:12px}
.script em{color:#98A1B5;font-style:normal;font-size:14px}
.copy{position:absolute;top:14px;right:14px;background:rgba(255,255,255,.09);color:#fff;border:1px solid rgba(255,255,255,.22);font:600 12px/1 "Inter",sans-serif;padding:8px 14px;border-radius:8px;cursor:pointer;transition:background .15s,border-color .15s}
.copy:hover{background:var(--orange);border-color:var(--orange)}
.copy.ok{background:var(--good);border-color:var(--good)}

/* tables */
.tbl-scroll{overflow-x:auto;margin:0 0 20px;border-radius:16px;box-shadow:0 8px 24px rgba(24,31,44,.07)}
.tbl-scroll .tbl{margin:0;min-width:540px;box-shadow:none}
.tbl{width:100%;border-collapse:separate;border-spacing:0;background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;margin:0 0 20px;font-size:15px;line-height:1.55}
.tbl th{background:var(--ink);color:#fff;text-align:left;padding:13px 15px;font:700 12.5px/1.35 "Inter",sans-serif;letter-spacing:.04em;text-transform:uppercase}
.tbl td{padding:13px 15px;border-top:1px solid var(--line);vertical-align:top}
.tbl tr:nth-child(even) td{background:#FBF9F4}
.tbl .hi{color:var(--orange-deep);font-weight:700}

/* figures / charts */
.fig{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px 24px 12px;margin:0 0 22px;box-shadow:0 8px 24px rgba(24,31,44,.06)}
.fig svg{display:block;width:100%;height:auto}
.fig figcaption{font:600 13px/1.55 "Inter",sans-serif;color:var(--mut);text-align:center;padding:12px 8px 10px;border-top:1px solid var(--line);margin-top:12px}
.fig text{font-family:"Inter",sans-serif}

/* quiz */
.quiz{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:28px 30px;margin:0 0 56px;box-shadow:0 12px 30px rgba(24,31,44,.08)}
.quiz h2{font-size:23px}
.quiz .why{color:var(--mut);font-size:15px;margin-bottom:8px}
.q{padding:18px 0 8px;border-top:1px solid var(--line)}
.q:first-of-type{border-top:0}
.qq{font-weight:700;color:var(--ink);margin-bottom:12px}
.opt{display:block;width:100%;text-align:left;background:#FBF9F4;border:2px solid var(--line);border-radius:12px;padding:13px 17px;margin:0 0 10px;font:600 15.5px/1.5 "Inter",sans-serif;color:var(--body);cursor:pointer;transition:border-color .15s,transform .1s}
.opt:hover{border-color:#CFC7B4}
.opt:active{transform:scale(.995)}
.q.locked .opt{cursor:default}
.opt.correct{border-color:var(--good);background:#EAF7F0;color:#1E6B47}
.opt.wrong{border-color:var(--bad);background:#FBEDEC;color:#93312E}
.fb{display:none;font-size:15px;border-radius:12px;padding:13px 17px;margin:4px 0 12px}
.fb.show{display:block}
.fb.good{background:#EAF7F0;color:#1E6B47}
.fb.bad{background:#FFF4E8;color:#8A4A12}

/* live calculators */
.calc{background:linear-gradient(150deg,#2A3448,var(--ink) 65%,var(--ink-deep));border-radius:18px;padding:28px 30px;margin:0 0 22px;color:#fff;box-shadow:0 14px 32px rgba(24,31,44,.20)}
.calc h3{color:#fff;margin:0 0 5px;font-family:"Baloo 2",sans-serif}
.calc .sub{color:#98A1B5;font-size:14px;margin:0 0 16px}
.calc label{display:block;font:700 11px/1 "Inter",sans-serif;letter-spacing:.13em;text-transform:uppercase;color:#98A1B5;margin:0 0 6px}
.calc input{width:100%;background:#2E3A54;border:1px solid #414D6B;color:#fff;font:700 18px/1 "Inter",sans-serif;padding:12px 14px;border-radius:10px}
.calc input:focus{outline:2px solid var(--orange);border-color:var(--orange)}
.calc .row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:6px}
.calc .row>div{flex:1;min-width:150px}
.calc .out{margin-top:14px;background:rgba(232,130,60,.13);border:1px solid rgba(232,130,60,.5);border-radius:12px;padding:16px 18px;font-size:15px;line-height:1.75}
.calc .out b{color:var(--orange-hot);font-size:21px}
.calc .out.dim{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.16)}
.calc .note{font-size:12.5px;color:#98A1B5;margin-top:10px;line-height:1.6}

/* action steps */
.steps{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:28px 30px;box-shadow:0 12px 30px rgba(24,31,44,.08)}
.steps h2{font-size:23px;margin-bottom:6px}
.steps .why{color:var(--mut);font-size:15px;margin-bottom:16px}
.steps label{display:flex;gap:13px;align-items:flex-start;padding:13px 0;border-top:1px solid var(--line);cursor:pointer;font-size:16px;line-height:1.6}
.steps label:first-of-type{border-top:0}
.steps input{appearance:none;flex:0 0 auto;width:23px;height:23px;margin-top:2px;border:2px solid #C4BCA9;border-radius:8px;cursor:pointer;position:relative;background:#fff;transition:background .15s,border-color .15s}
.steps input:checked{background:var(--orange);border-color:var(--orange)}
.steps input:checked::after{content:"✓";position:absolute;inset:0;color:#fff;font:800 14px/19px "Inter",sans-serif;text-align:center}
.steps input:checked + span{color:var(--mut);text-decoration:line-through}

/* CTA panel */
.cta-panel{background:linear-gradient(160deg,#2A3448 0%,var(--ink) 50%,var(--ink-deep) 100%);color:#fff;margin:60px 0 0;padding:60px 0;position:relative;overflow:hidden}
.cta-panel::before{content:"";position:absolute;width:460px;height:460px;left:-140px;bottom:-260px;border-radius:50%;background:radial-gradient(circle,rgba(232,130,60,.18) 0%,transparent 65%)}
.cta-panel .wrap{position:relative}
.cta-panel .kick{font:700 11.5px/1 "Inter",sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--orange-hot);margin:0 0 14px}
.cta-panel h2{font-family:"Baloo 2",sans-serif;font-weight:800;font-size:clamp(26px,4vw,35px);color:#fff;margin:0 0 12px;display:block}
.cta-panel p{color:#C6CCDA;font-size:17px;max-width:58ch}
.btn{display:inline-block;background:linear-gradient(180deg,var(--orange-hot),var(--orange));color:#fff;text-decoration:none;font:800 17px/1 "Baloo 2","Inter",sans-serif;letter-spacing:.02em;padding:18px 36px;border-radius:12px;margin:12px 0 16px;box-shadow:0 12px 26px rgba(232,130,60,.38);transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(232,130,60,.45)}
.cta-panel .alt{font-size:15px;color:#98A1B5}
.cta-panel .alt a{color:var(--orange-hot)}

/* prev / next */
.pn{display:flex;gap:14px;max-width:720px;margin:0 auto;padding:36px 26px}
.pn a{flex:1;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:17px 19px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .12s,box-shadow .15s}
.pn a:hover{border-color:var(--orange);transform:translateY(-2px);box-shadow:0 10px 22px rgba(24,31,44,.08)}
.pn .dir{display:block;font:700 10.5px/1 "Inter",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--mut);margin-bottom:7px}
.pn .ttl{font:700 16px/1.35 "Baloo 2",sans-serif}
.pn .next{text-align:right}

footer{max-width:720px;margin:0 auto;padding:8px 26px 60px;font-size:13px;color:#A6ACB8}
footer a{color:#A6ACB8}

/* ————— mobile ————— */
@media(max-width:640px){
  body{font-size:16px;line-height:1.7}
  .wrap{padding:0 18px}
  .hero{padding:54px 0 42px}
  .hero .sub{font-size:16.5px}
  .meta span{font-size:12px;padding:8px 12px}
  .toc{margin-top:-22px;padding:18px 20px}
  .toc li{font-size:14.5px}
  main section{margin-bottom:44px}
  h2{font-size:22.5px;gap:10px}
  h2 .n{font-size:21px;min-width:20px}
  h3{font-size:18px}
  .script{padding:20px 18px}
  .script p{font-size:15.5px}
  .tbl-scroll .tbl{min-width:500px}
  .tbl{font-size:13.5px}
  .tbl th,.tbl td{padding:10px 11px}
  .fig{padding:16px 14px 8px}
  .quiz,.steps,.calc{padding:22px 18px}
  .opt{font-size:14.5px;padding:12px 14px}
  .steps label{font-size:15px}
  .calc .row{gap:10px}
  .calc .row>div{min-width:130px}
  .calc input{font-size:16px}
  .calc .out{font-size:14px;padding:13px 14px}
  .calc .out b{font-size:18px}
  .cta-panel{padding:46px 0}
  .btn{display:block;text-align:center}
  .pn{flex-direction:column;padding:28px 18px}
  .pn .next{text-align:left}
}