/* ==========================================================================
   Neonate Nerds Edu — design system
   Palette (owner-supplied): salmon #ff9999 · accent #98c4ef · ink #212020
   ========================================================================== */
:root{
  --salmon:#ff9999;
  --salmon-soft:#ffc4c4;
  --salmon-tint:#fff0f0;
  --salmon-line:#ffd9d9;
  --salmon-ink:#a63d43;
  --accent:#98c4ef;
  --accent-soft:#d6e7f9;
  --accent-ink:#2f5d8c;
  --ink:#212020;
  --ink-70:rgba(33,32,32,.72);
  --ink-55:rgba(33,32,32,.55);
  --line:rgba(33,32,32,.12);
  --line-strong:rgba(33,32,32,.22);
  --card:#fff;
  --paper:#fffaf9;
  --paper-2:#fff4f3;
  --ok:#2f7d5f;
  --warn:#9a6a10;
  --err:#a3363b;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(33,32,32,.05), 0 12px 32px -18px rgba(33,32,32,.28);
  --shadow-lg:0 2px 6px rgba(33,32,32,.06), 0 26px 60px -30px rgba(33,32,32,.35);
  --wrap:1140px;
  --font-display:"Fraunces",Georgia,"Times New Roman",serif;
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:400 17px/1.65 var(--font-body);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-ink);text-underline-offset:3px}
a:hover{color:var(--salmon-ink)}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.14;letter-spacing:-.01em;margin:0 0 .55em}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem)}
h2{font-size:clamp(1.6rem,3vw,2.35rem)}
h3{font-size:clamp(1.12rem,1.7vw,1.4rem)}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin:0 0 .45em}
strong{font-weight:650}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.narrow{max-width:820px}
.center{text-align:center}
.muted{color:var(--ink-55)}
.small{font-size:.9rem}
.tiny{font-size:.78rem}
.lede{font-size:1.12rem;color:var(--ink-70)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:10px 14px;border-radius:8px;z-index:99}

/* ------------------------------------------------------------------ header */
.site-head{background:var(--salmon);position:relative;z-index:20;border-bottom:1px solid rgba(33,32,32,.08)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);min-width:0}
.brand-mark{color:var(--ink);display:grid;place-items:center;background:rgba(255,255,255,.6);width:44px;height:44px;border-radius:12px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-family:var(--font-display);font-size:1.32rem;line-height:1.2}
.brand-text em{font-style:normal;font-size:.74rem;letter-spacing:.02em;color:rgba(33,32,32,.66);max-width:30ch}
.site-nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.site-nav a{color:var(--ink);text-decoration:none;font-weight:550;font-size:.97rem}
.site-nav a:hover{text-decoration:underline}
.nav-cta{background:var(--ink);color:#fff!important;padding:11px 18px;border-radius:999px;text-decoration:none!important;font-weight:600}
.nav-cta:hover{background:#000}
.nav-toggle{display:none;background:rgba(255,255,255,.65);border:1px solid var(--line-strong);color:var(--ink);
  font:600 .95rem var(--font-body);padding:10px 16px;border-radius:999px;cursor:pointer}

.policy-strip{background:var(--ink);color:#fff;font-size:.85rem}
.policy-strip .wrap{padding-top:9px;padding-bottom:9px}
.policy-strip strong{color:var(--salmon-soft)}
.policy-strip a{color:var(--accent);text-decoration:underline}

/* -------------------------------------------------------------------- hero */
.hero{background:linear-gradient(170deg,var(--salmon) 0%,#ffb3b3 52%,var(--salmon-tint) 100%);padding:64px 0 74px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto -10% -60px -10%;height:220px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(152,196,239,.55),rgba(152,196,239,0) 70%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;position:relative}
.hero h1{margin-bottom:.35em}
.hero .kicker{font:600 .82rem/1 var(--font-body);letter-spacing:.14em;text-transform:uppercase;color:var(--salmon-ink);margin-bottom:16px;display:block}
.hero p{font-size:1.13rem;color:rgba(33,32,32,.8);max-width:56ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 24px;border-radius:999px;font-weight:650;
  text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-size:1rem;font-family:var(--font-body)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000;color:#fff}
.btn-ghost{background:rgba(255,255,255,.72);color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:var(--accent-soft);color:var(--ink)}
.btn-sm{padding:10px 16px;font-size:.9rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

.hero-card{background:#fff;border-radius:22px;padding:26px 26px 22px;box-shadow:var(--shadow-lg);border:1px solid var(--line)}
.hero-card h2{font-size:1.2rem;margin-bottom:.4em}
.cred-list{list-style:none;padding:0;margin:0 0 18px}
.cred-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.cred-list li:last-child{border-bottom:0}
.cred-list svg{flex:none;margin-top:3px;color:var(--accent-ink)}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-radius:var(--radius);overflow:hidden;margin-top:46px;position:relative}
.stat{background:#fff;padding:22px 20px}
.stat b{display:block;font-family:var(--font-display);font-size:1.85rem;line-height:1.1;color:var(--ink)}
.stat span{font-size:.86rem;color:var(--ink-55)}

/* ----------------------------------------------------------------- bands */
.band{padding:66px 0}
.band-paper2{background:var(--paper-2)}
.band-white{background:#fff}
.band-ink{background:var(--ink);color:#fff}
.band-ink h2,.band-ink h3{color:#fff}
.band-ink a{color:var(--accent)}
.band-salmon{background:var(--salmon-tint);border-top:1px solid var(--salmon-line);border-bottom:1px solid var(--salmon-line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto}
.section-head .eyebrow{font:600 .78rem/1 var(--font-body);letter-spacing:.16em;text-transform:uppercase;color:var(--salmon-ink);display:block;margin-bottom:12px}

/* ------------------------------------------------------------------ cards */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.card h3{margin-bottom:.3em}
.card .meta{font-size:.82rem;color:var(--ink-55);margin-bottom:14px;letter-spacing:.01em}
.card .price{margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:16px}
.card .price b{font-family:var(--font-display);font-size:1.7rem}
.card .price span{font-size:.84rem;color:var(--ink-55)}
.card-link{text-decoration:none;color:inherit;display:flex}
.card-link:hover{color:inherit}
.card-link:hover .card{border-color:var(--salmon);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card{transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent-ink);font:600 .74rem/1 var(--font-body);
  letter-spacing:.06em;text-transform:uppercase;padding:7px 11px;border-radius:999px;margin-bottom:12px}
.badge-salmon{background:var(--salmon-soft);color:var(--salmon-ink)}
.badge-ink{background:var(--ink);color:#fff}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px}
.pill{font-size:.8rem;border:1px solid var(--line-strong);border-radius:999px;padding:6px 12px;color:var(--ink-70)}

/* ------------------------------------------------------------------ tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--paper-2);font:650 .82rem/1.35 var(--font-body);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-70)}
tr:last-child td{border-bottom:0}

/* -------------------------------------------------------------- calendar */
.cal-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.cal-month{font-family:var(--font-display);font-size:1.4rem;margin:0}
.cal-nav{display:flex;gap:8px}
.cal-nav button{background:#fff;border:1px solid var(--line-strong);border-radius:999px;padding:9px 16px;cursor:pointer;
  font:600 .9rem var(--font-body);color:var(--ink)}
.cal-nav button:hover{background:var(--salmon-tint)}
.cal-nav button[disabled]{opacity:.45;cursor:not-allowed}
.cal-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.84rem;color:var(--ink-70);margin-bottom:16px}
.cal-legend span{display:inline-flex;align-items:center;gap:7px}
.swatch{width:15px;height:15px;border-radius:5px;border:1px solid var(--line-strong);display:inline-block}
.swatch-open{background:#fff}
.swatch-class{background:var(--salmon)}
.swatch-closed{background:repeating-linear-gradient(45deg,#ecebeb,#ecebeb 3px,#dcdbdb 3px,#dcdbdb 6px)}
.cal{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.cal-dow{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin-bottom:8px}
.cal-dow div{font:650 .76rem/1 var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-55);text-align:center}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.day{min-height:118px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:8px;background:#fff;position:relative;display:flex;flex-direction:column;gap:6px}
.day-num{font:650 .86rem/1 var(--font-body);color:var(--ink-70);display:flex;justify-content:space-between;align-items:center}
.day.is-blank{background:transparent;border-color:transparent;min-height:0;padding:0}
.day.is-closed{background:repeating-linear-gradient(45deg,#f6f5f5,#f6f5f5 4px,#eeecec 4px,#eeecec 8px);border-color:var(--line)}
.day.is-closed .day-num{color:var(--ink-55)}
.day-closed-label{font-size:.72rem;color:var(--ink-55);margin-top:auto}
.day.is-past{opacity:.5}
.day.is-today{border-color:var(--salmon);box-shadow:0 0 0 2px var(--salmon-tint)}
.day-slot{background:var(--salmon-tint);border:1px solid var(--salmon-line);border-radius:9px;padding:6px 7px;font-size:.76rem;text-align:left;cursor:pointer;display:block;width:100%;text-decoration:none;color:inherit}
.day-slot:hover{background:var(--salmon-soft);color:inherit}
.day-slot b{display:block;font-size:.78rem;font-weight:650}
.day-slot em{font-style:normal;color:var(--ink-55);display:block;font-size:.72rem}
.day-slot.is-full{background:#f1f0f0;border-color:var(--line);cursor:not-allowed}
.seats-tag{display:inline-block;font-size:.68rem;font-weight:650;padding:2px 6px;border-radius:5px;background:#fff;border:1px solid var(--line-strong);color:var(--ink-70)}
.seats-tag.is-low{border-color:var(--salmon);color:var(--salmon-ink);background:#fff}
.seats-tag.is-full{background:var(--ink);color:#fff;border-color:var(--ink)}
.day-open-cta{font-size:.72rem;text-decoration:none;color:var(--accent-ink);font-weight:600;margin-top:auto;display:inline-block}
.day-open-cta:hover{color:var(--salmon-ink)}
.cal-foot{margin-top:14px;font-size:.85rem;color:var(--ink-55)}
.cal-wrap{overflow:hidden}
.agenda{display:none}

/* ------------------------------------------------------------------ forms */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.93rem;margin-bottom:7px}
.field .hint{font-size:.83rem;color:var(--ink-55);margin-top:5px;display:block}
input[type=text],input[type=email],input[type=tel],input[type=date],input[type=number],input[type=time],select,textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:#fff;
  font:400 1rem var(--font-body);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent-ink);box-shadow:0 0 0 3px var(--accent-soft)}
textarea{min-height:120px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check{display:flex;gap:11px;align-items:flex-start;font-size:.92rem;margin-bottom:14px}
.check input{margin-top:4px;flex:none;width:18px;height:18px}
.check.tight{font-size:.87rem;color:var(--ink-70)}
.hp{position:absolute!important;left:-9999px!important;height:1px;overflow:hidden}
.form-note{font-size:.85rem;color:var(--ink-55);border-top:1px dashed var(--line);padding-top:14px;margin-top:6px}
.field-error{color:var(--err);font-size:.85rem;margin-top:5px;font-weight:600}

.flash{border-radius:var(--radius-sm);padding:15px 18px;margin:0 0 22px;font-size:.95rem;border:1px solid}
.flash-error{background:#fdf1f1;border-color:#e8b6b8;color:var(--err)}
.flash-ok{background:#f0f8f4;border-color:#b6dcc9;color:var(--ok)}
.flash-info{background:var(--accent-soft);border-color:#b3d1ee;color:var(--accent-ink)}
.flash-warn{background:#fdf7e9;border-color:#e6d3a2;color:var(--warn)}

/* ---------------------------------------------------------------- details */
details.faq{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;padding:0;margin-bottom:12px;box-shadow:var(--shadow)}
details.faq summary{cursor:pointer;padding:18px 20px;font-weight:650;font-family:var(--font-display);font-size:1.06rem;list-style:none;display:flex;justify-content:space-between;gap:14px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-family:var(--font-body);color:var(--salmon-ink);font-size:1.3rem;line-height:1}
details.faq[open] summary::after{content:"–"}
details.faq .faq-body{padding:0 20px 20px;font-size:.97rem;color:var(--ink-70)}

/* -------------------------------------------------------------- overview */
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;position:sticky;top:20px}
.toc h3{font-size:1rem;margin-bottom:.7em}
.toc ul{list-style:none;padding:0;margin:0;font-size:.92rem}
.toc li{margin-bottom:.5em}
.split{display:grid;grid-template-columns:minmax(0,2.2fr) minmax(0,1fr);gap:40px;align-items:start}
.note-box{background:var(--salmon-tint);border:1px solid var(--salmon-line);border-left:5px solid var(--salmon);
  border-radius:var(--radius-sm);padding:18px 20px;margin:24px 0}
.note-box h4{margin:0 0 .4em;font-size:1.02rem}
.note-box.blue{background:#f1f7fd;border-color:#cfe3f6;border-left-color:var(--accent)}
.note-box p:last-child,.note-box ul:last-child{margin-bottom:0}
.pull{font-family:var(--font-display);font-size:1.35rem;line-height:1.4;color:var(--ink);border-left:5px solid var(--salmon);
  padding:6px 0 6px 22px;margin:28px 0}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding-left:56px;margin-bottom:22px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;
  background:var(--accent);color:var(--ink);font:650 1rem/38px var(--font-body);text-align:center}
.steps h3{margin-bottom:.25em}
.breadcrumb{font-size:.85rem;color:var(--ink-55);margin:0 0 14px}
.breadcrumb a{color:var(--ink-55)}
.page-head{background:linear-gradient(160deg,var(--salmon-tint),#fff 70%);border-bottom:1px solid var(--salmon-line);padding:44px 0 40px}
.page-head h1{margin-bottom:.3em}
.page-head .lede{max-width:70ch;margin-bottom:0}

/* ------------------------------------------------------------------ media */
.media-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px;align-items:center}
.portrait{background:linear-gradient(150deg,var(--salmon-soft),var(--accent-soft));border-radius:var(--radius);aspect-ratio:4/5;
  display:grid;place-items:center;color:var(--ink-70);font-size:.85rem;text-align:center;padding:24px;border:1px solid var(--line)}
.credo{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.credo div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.credo b{display:block;font-family:var(--font-display);font-size:1.07rem;margin-bottom:.3em}

/* ---------------------------------------------------------------- footer */
.site-foot{background:var(--ink);color:rgba(255,255,255,.82);padding:54px 0 30px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand{font-family:var(--font-display);font-size:1.15rem;color:#fff;display:block;margin-bottom:.6em}
.site-foot h3{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--salmon-soft);margin-bottom:.9em;font-family:var(--font-body);font-weight:650}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:.5em}
.site-foot a{color:rgba(255,255,255,.86);text-decoration:none}
.site-foot a:hover{color:#fff;text-decoration:underline}
.site-foot .muted{color:rgba(255,255,255,.6)}
.foot-end{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:22px;font-size:.78rem;color:rgba(255,255,255,.55)}
.foot-end p{margin-bottom:.7em}
.foot-end .small{font-size:.78rem}

/* ------------------------------------------------------------- utilities */
.reveal{transition:opacity .5s ease, transform .5s ease}
html.js .reveal{opacity:0;transform:translateY(14px)}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none}
  .card{transition:none}
  html{scroll-behavior:auto}
}

/* ----------------------------------------------------------- responsive */
@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr}
  .toc{position:static}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
  .media-row{grid-template-columns:1fr}
  .head-inner{flex-wrap:wrap}
  .site-nav{gap:16px}
}
@media (max-width:820px){
  .nav-toggle{display:inline-block}
  .site-nav{display:none;width:100%;flex-direction:column;align-items:flex-start;gap:12px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
  .site-nav.open{display:flex}
  .grid-3,.grid-2,.grid-4,.credo{grid-template-columns:1fr}
  .cal-dow,.cal-grid{display:none}
  .agenda{display:block}
  .agenda-month{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px;margin-bottom:18px}
  .agenda-day{padding:14px 0;border-bottom:1px dashed var(--line)}
  .agenda-day:last-child{border-bottom:0}
  .agenda-day h4{font-family:var(--font-body);font-weight:650;font-size:.95rem;margin:0 0 8px}
  .field-row{grid-template-columns:1fr}
  .band{padding:48px 0}
  .hero{padding:44px 0 52px}
  .stat-strip{grid-template-columns:1fr 1fr}
}
@media print{
  .site-head,.policy-strip,.site-foot,.cta-row,.cal-nav{display:none}
  body{background:#fff}
}