/* ClassroomSolution.app — one stylesheet, three themes (home / early learning / K–5) */
:root{--ink:#1c2230;--muted:#555e70;--line:#dfe3ea;--paper:#fff;--soft:#f6f7fa;--r:14px;--max:1120px;
--serif:Roboto,Arial,sans-serif;--sans:Roboto,Arial,sans-serif;
--el:#1964AA;--el-d:#0f4478;--el-t:#e8f1fa;--k5:#65002F;--k5-d:#45001f;--k5-t:#f7eaef}
.theme-home{--brand:#123b5d;--brand-d:#0b2740;--tint:#eaf0f5}
.theme-el{--brand:var(--el);--brand-d:var(--el-d);--tint:var(--el-t)}
.theme-k5{--brand:var(--k5);--brand-d:var(--k5-d);--tint:var(--k5-t)}
.el{--brand:var(--el);--brand-d:var(--el-d);--tint:var(--el-t)}
.k5{--brand:var(--k5);--brand-d:var(--k5-d);--tint:var(--k5-t)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font:17px/1.65 var(--sans);color:var(--ink);background:var(--paper)}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand)}
h1,h2,h3{font-family:var(--serif);line-height:1.15;margin:0 0 .5em;font-weight:600;color:var(--brand-d)}
h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:650;letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.2vw,2.35rem)}h3{font-size:1.2rem}
p{margin:0 0 1em}ul{padding-left:1.2em;margin:0 0 1em}li{margin-bottom:.35em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px}
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:4px solid var(--brand)}
.bar{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:650;font-size:1.1rem;line-height:1.1}
.brand img{height:50px;width:auto}.brand small{display:block;font:500 .72rem var(--sans);color:var(--muted)}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{padding:8px 10px;border-radius:999px;text-decoration:none;color:var(--ink);font-weight:550;font-size:.88rem;display:flex;align-items:center;gap:8px}
.nav a:hover{background:var(--soft)}
.nav a[aria-current=page]{background:var(--tint);color:var(--brand-d)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--el)}.dot.k5{background:var(--k5)}
.nav .cta{background:var(--brand);color:#fff}.nav .cta:hover{background:var(--brand-d)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font:inherit}
.btn{display:inline-block;padding:13px 22px;border-radius:999px;background:var(--brand);color:#fff;text-decoration:none;font-weight:650;border:2px solid var(--brand);cursor:pointer;font-size:1rem;font-family:inherit}
.btn:hover{background:var(--brand-d);border-color:var(--brand-d)}
.btn.ghost{background:transparent;color:var(--brand)}.btn.ghost:hover{background:var(--tint)}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
section{padding:30px 0}.alt{background:var(--tint)}.soft{background:var(--soft)}
.kicker{font-weight:650;color:var(--brand);margin-bottom:.6em;font-size:.95rem}
.hero{padding:30px 0 30px;background:linear-gradient(180deg,var(--tint),#fff)}
.hero .grid{align-items:center}.lead{font-size:1.2rem;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0;padding:0;list-style:none}
.chips li{background:#fff;border:1px solid var(--brand);color:var(--brand-d);padding:5px 14px;border-radius:999px;font-weight:600;font-size:.9rem;margin:0}
.grid{display:grid;gap:40px;grid-template-columns:1fr 1fr}
.grid.three{grid-template-columns:repeat(3,1fr);gap:24px}.grid.four{grid-template-columns:repeat(4,1fr);gap:20px}
.grid.two-gap{gap:24px}
.img{border-radius:var(--r);box-shadow:0 10px 30px rgba(18,30,50,.14)}
.card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--brand);border-radius:var(--r);padding:22px}
.card h3{margin-bottom:.4em}.card p{margin:0;font-size:.97rem;color:var(--muted)}
.checks{list-style:none;padding:0}.checks li{padding-left:28px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
.flow{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:20px 0;font-weight:650}
.flow span{background:var(--brand);color:#fff;padding:8px 18px;border-radius:999px}.flow i{color:var(--brand);font-style:normal;font-weight:800}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:16px}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-left:5px solid var(--brand);border-radius:var(--r);padding:16px 20px 16px 64px;position:relative;margin:0}
.steps li:before{content:counter(s);position:absolute;left:18px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:700}
.steps h3{margin:0 0 .2em}.steps p{margin:0;color:var(--muted)}
.steps-row{grid-template-columns:repeat(3,1fr);margin-top:8px}
.doors{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:20px;overflow:hidden;box-shadow:0 14px 40px rgba(18,30,50,.16)}
.door{padding:40px;background:var(--brand);color:#fff;display:flex;flex-direction:column;gap:6px}
.door h2,.door h3{color:#fff}.door a{color:#fff}.door .checks li:before{color:#fff}.door p{color:#ffffffd9}
.door .tag{font-weight:650;opacity:.85}.door img{border-radius:10px;margin:10px 0;object-fit:cover;width:100%}
.door .btn{background:#fff;color:var(--brand-d);border-color:#fff;align-self:flex-start;margin-top:auto}
.door .btn:hover{background:var(--tint)}
.audience{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tbl{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;background:#fff}
th,td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--brand);color:#fff;font-weight:650}td:last-child{font-weight:600;color:var(--brand-d);background:var(--tint)}
tr:last-child td{border-bottom:0}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
summary{cursor:pointer;padding:16px 20px;font-weight:650;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--brand);font-size:1.4rem;line-height:1}
details[open] summary:after{content:"–"}details p{padding:0 20px;color:var(--muted)}
blockquote{margin:24px 0 0;padding:18px 24px;border-left:5px solid var(--brand);background:var(--tint);font-family:var(--serif);font-size:1.2rem;border-radius:0 var(--r) var(--r) 0;color:var(--brand-d)}
.band{background:var(--brand);color:#fff;text-align:center}.band h2{color:#fff}.band p{margin-inline:auto;color:#ffffffdd}
.band .btn{background:#fff;color:var(--brand-d);border-color:#fff}
form{background:#fff;border:1px solid var(--line);border-top:4px solid var(--brand);border-radius:var(--r);padding:26px;display:grid;gap:14px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-weight:600;font-size:.92rem;display:grid;gap:5px}
input,select,textarea{font:inherit;padding:11px 12px;border:1px solid #b9c0cc;border-radius:8px;width:100%}
.note,.form-note{font-size:.85rem;color:var(--muted);margin:0}
.home-demo .btn{width:100%;text-align:center}
.video{position:relative;display:block;border-radius:var(--r);overflow:hidden;box-shadow:0 10px 30px rgba(18,30,50,.14);width:480px;max-width:100%}
.video:after{content:"▶";position:absolute;inset:0;display:grid;place-items:center;font-size:3rem;color:#fff;background:rgba(18,59,93,.35)}
.learn-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.learn-card{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px}
.learn-card--photo-end{grid-template-columns:1fr auto}
.learn-card img{width:120px;height:120px;border-radius:50%;object-fit:cover}
.learn-card h3{margin:0 0 .25em}.learn-card p{margin:0;color:var(--muted)}
footer{background:var(--brand-d);color:#ffffffd0;padding:48px 0 28px;font-size:.95rem}
footer a{color:#fff}footer h3{color:#fff;font-family:var(--sans);font-size:1rem}
footer .grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}footer ul{list-style:none;padding:0}
footer .legal{border-top:1px solid #ffffff30;margin-top:28px;padding-top:18px;font-size:.85rem}
@media(max-width:900px){.grid,.grid.three,.grid.four,.doors,.audience,.learn-cards,.steps-row,footer .grid{grid-template-columns:1fr}.grid{gap:28px}
.audience{grid-template-columns:1fr 1fr}section{padding:30px 0}
.menu-btn{display:block}.nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 18px;border-bottom:1px solid var(--line)}
.nav.open{display:flex}.row{grid-template-columns:1fr}.door{padding:28px}
.learn-card,.learn-card--photo-end{grid-template-columns:auto 1fr}.learn-card--photo-end img{order:-1}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}