/* Math Salad responsive landing page */
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body.math-salad-app-shell{background:#fffdf8;color:#102e68;overflow-x:hidden;font-family:Arial,sans-serif}
.ms-page{min-height:100vh;background:#fffdf8}
.ms-sr{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* Desktop / laptop */
.ms-desktop{display:block}
.ms-desktop-stage{position:relative;width:min(100%,1536px);margin:0 auto;line-height:0;background:#fff;overflow:hidden}
.ms-desktop-stage img{display:block;width:100%;height:auto}
.ms-hotspot{position:absolute;z-index:5;display:block;border:0;background:transparent;cursor:pointer;border-radius:14px;text-indent:-9999px;overflow:hidden;white-space:nowrap}
.ms-hotspot:hover{background:rgba(255,255,255,.08)}
.ms-hotspot:focus-visible{outline:4px solid #0b5fff;outline-offset:2px;background:rgba(255,255,255,.12)}
.ms-how{left:47.6%;top:1.2%;width:8.9%;height:5.5%}
.ms-parents{left:56.9%;top:1.2%;width:8.3%;height:5.5%}
.ms-schools{left:65.4%;top:1.2%;width:8.4%;height:5.5%}
.ms-pricing{left:74.8%;top:1.2%;width:5.8%;height:5.5%}
.ms-login{left:81.8%;top:1.0%;width:13.8%;height:5.8%}
.ms-start{left:29.8%;top:64.4%;width:20.9%;height:8.5%}
.ms-video{left:52.0%;top:64.3%;width:18.4%;height:8.5%}

/* Supporting content below the hero */
.ms-sections{background:#fff}
.ms-section{max-width:1120px;margin:0 auto;padding:74px 24px;border-top:1px solid #edf0f5}
.ms-section:first-child{border-top:0}
.ms-kicker{font-weight:900;color:#ff5a0a;text-transform:uppercase;letter-spacing:.08em;font-size:13px}
.ms-section h2{font-size:clamp(34px,5vw,52px);line-height:1.05;margin:8px 0 14px;color:#102e68;letter-spacing:-.03em}
.ms-section p{max-width:760px;color:#5f687a;font-size:18px;line-height:1.65;margin:0}
.ms-info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.ms-info-card{border:1px solid #e6e9ee;border-radius:22px;padding:22px;background:#fff;box-shadow:0 8px 24px rgba(15,44,99,.06)}
.ms-info-card strong{display:block;font-size:20px;color:#102e68;margin-bottom:7px}
.ms-info-card span{color:#687083;line-height:1.55}
.ms-pricing-box{display:flex;justify-content:space-between;align-items:center;gap:22px;background:linear-gradient(135deg,#eef9e8,#fff5e9);border:1px solid #e7eadf;border-radius:24px;padding:26px;margin-top:28px}
.ms-pricing-box strong{font-size:25px;color:#0b7e36}
.ms-pricing-box span{color:#6b7280}

/* Native interactive controls */
.ms-button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:0;border-radius:14px;padding:14px 22px;font-weight:900;font-size:17px;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}
.ms-button:hover{transform:translateY(-1px)}
.ms-button.orange{background:#ff5b0a;color:#fff;box-shadow:0 7px 18px rgba(255,91,10,.25)}
.ms-button.green{background:#37c348;color:#fff;box-shadow:0 7px 18px rgba(55,195,72,.22)}
.ms-button.outline{background:#fff;color:#0b7e36;border:2px solid #36bf46}

/* Mobile / tablet */
.ms-mobile{display:none}
@media(max-width:900px){
  .ms-desktop{display:none}
  .ms-mobile{display:block;background:linear-gradient(#eef8ff 0,#fff9ef 48%,#fff 100%)}
  .ms-mobile-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:rgba(255,255,255,.96);position:sticky;top:0;z-index:20;border-bottom:1px solid #edf0f4}
  .ms-mobile-brand{display:flex;align-items:center;gap:0;text-decoration:none;font-size:30px;font-weight:950;letter-spacing:-.055em;line-height:1}
  .ms-mobile-brand .math{color:#07852f}.ms-mobile-brand .salad{color:#ff5a0a}
  .ms-mobile-login{font-size:13px;padding:10px 13px;border-radius:12px}
  .ms-mobile-hero{padding:16px 14px 30px;text-align:center}
  .ms-mobile-tag{font-family:"Comic Sans MS","Trebuchet MS",sans-serif;font-weight:800;font-size:20px;color:#143670;margin:2px 0 14px}
  .ms-mobile-art{display:block;width:100%;height:auto;border-radius:24px;box-shadow:0 12px 30px rgba(15,44,99,.14);background:#fff}
  .ms-mobile-headline{font-family:"Comic Sans MS","Trebuchet MS",sans-serif;font-size:34px;line-height:1.05;color:#143670;margin:22px auto 10px;max-width:360px}
  .ms-mobile-headline span{color:#ff5a0a}
  .ms-mobile-copy{font-size:16px;line-height:1.55;color:#5f687a;margin:0 auto 18px;max-width:360px}
  .ms-mobile-actions{display:grid;grid-template-columns:1fr;gap:10px}
  .ms-mobile-benefits{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0 14px 28px}
  .ms-mobile-benefit{background:#fff;border:1px solid #eceff3;border-radius:18px;padding:16px 12px;text-align:center;box-shadow:0 7px 18px rgba(15,44,99,.05)}
  .ms-mobile-icon{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:950;font-size:27px;margin:0 auto 9px}
  .ms-mobile-benefit:nth-child(1) .ms-mobile-icon{background:#3bc84b}
  .ms-mobile-benefit:nth-child(2) .ms-mobile-icon{background:#ff9d22}
  .ms-mobile-benefit:nth-child(3) .ms-mobile-icon{background:#7c39df}
  .ms-mobile-benefit:nth-child(4) .ms-mobile-icon{background:#159be9}
  .ms-mobile-benefit strong{display:block;color:#12336d;font-size:15px;line-height:1.15;margin-bottom:5px}
  .ms-mobile-benefit span{display:block;color:#687083;font-size:12px;line-height:1.35}
  .ms-section{padding:52px 18px}
  .ms-section h2{font-size:34px}
  .ms-section p{font-size:16px}
  .ms-info-grid{grid-template-columns:1fr}
  .ms-pricing-box{align-items:flex-start;flex-direction:column}
}
@media(max-width:420px){
  .ms-mobile-brand{font-size:27px}
  .ms-mobile-login{font-size:12px;padding:9px 11px}
  .ms-mobile-headline{font-size:31px}
  .ms-mobile-benefits{grid-template-columns:1fr 1fr}
}

/* v5.3 commercial visual direction */
body.math-salad-app-shell{background:radial-gradient(circle at 12% 8%,#e8fff1 0,transparent 34%),radial-gradient(circle at 88% 16%,#e9f5ff 0,transparent 32%),#fffdf8}.ms-sections{background:linear-gradient(180deg,#fffdf8,#f4fff8 48%,#f3f8ff)}.ms-section{border-top:0;margin-top:18px;margin-bottom:18px;background:rgba(255,255,255,.86);border:1px solid #e4eee8;border-radius:32px;box-shadow:0 20px 55px rgba(25,70,55,.08)}.ms-info-card{border-radius:26px;border-color:#dfece5;box-shadow:0 14px 32px rgba(25,70,55,.08);transition:transform .22s ease,box-shadow .22s ease}.ms-info-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(25,70,55,.12)}.ms-button{border-radius:18px}.ms-button.green{background:linear-gradient(135deg,#20a966,#43cb70)}.ms-button.orange{background:linear-gradient(135deg,#ff7a18,#ff5411)}.ms-pricing-box{border-radius:30px;box-shadow:0 18px 40px rgba(25,70,55,.08)}@media(max-width:900px){.ms-section{margin:12px;border-radius:26px}.ms-mobile-hero{position:relative}.ms-mobile-hero:before{content:"";position:absolute;inset:0 0 auto;height:180px;background:radial-gradient(circle,#d8ffe6,transparent 65%);pointer-events:none}.ms-mobile-art{position:relative;border:3px solid rgba(255,255,255,.9);box-shadow:0 22px 50px rgba(20,70,55,.15)}.ms-mobile-benefit{border-radius:22px;box-shadow:0 12px 28px rgba(20,70,55,.08)}}

/* Dialog */
.ms-modal{position:fixed;inset:0;background:rgba(5,18,45,.52);display:none;align-items:center;justify-content:center;padding:20px;z-index:99999}
.ms-modal.open{display:flex}
.ms-modal-card{width:min(440px,100%);background:#fff;border-radius:24px;padding:26px;box-shadow:0 24px 70px rgba(0,0,0,.25);text-align:center}
.ms-modal-card h3{margin:0 0 10px;color:#102e68;font-size:27px}
.ms-modal-card p{margin:0 0 20px;color:#687083;line-height:1.55}