/* StudyDo Fresh Classroom — visual refresh layered over the existing landing styles.
   Scoped to the marketing homepage; no changes to workbench/product CSS. */
:root {
  --green:#b9e88c;
  --green-dark:#176a49;
  --green-deep:#183a2c;
  --ink:#20382c;
  --muted:#667c6d;
  --paper:#f4faf5;
  --line:rgba(31,73,49,.12);
}
html,body{background:var(--paper)}
html{scroll-padding-top:92px}
body{color:var(--ink)}
#signal-canvas{display:none}
.section-pad{padding-left:max(28px,calc((100vw - 1260px)/2));padding-right:max(28px,calc((100vw - 1260px)/2))}
.site-header{height:80px;padding:0 max(28px,calc((100vw - 1320px)/2));background:rgba(244,250,245,.92);border-bottom:1px solid rgba(31,73,49,.07);backdrop-filter:blur(18px)}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 4px 28px rgba(32,70,49,.055)}
.desktop-nav{gap:26px;margin-left:2vw}
.desktop-nav a{font-size:13px;font-weight:600;white-space:nowrap}
.brand-name{letter-spacing:.035em}
.brand-cn{border-color:rgba(31,73,49,.12)}
.button,.download-link{border-radius:12px;font-weight:700}
.button-green{background:#176a49;color:#fff;box-shadow:0 12px 25px rgba(23,106,73,.18)}
.button-green:hover{background:#11563b;box-shadow:0 16px 32px rgba(23,106,73,.2)}
.button-dark{background:#176a49;color:#fff}
.button-dark:hover{background:#11563b}
.button-outline{background:rgba(255,255,255,.75);border:1px solid rgba(23,106,73,.2);color:#176a49;box-shadow:0 7px 20px rgba(23,106,73,.035)}
.button-outline:hover{background:#fff;box-shadow:0 12px 25px rgba(23,106,73,.09)}
.button:focus-visible,.downloads-preview-trigger:focus-visible,.desktop-nav a:focus-visible,.mobile-menu a:focus-visible,.atlas-tab:focus-visible{outline:3px solid #9dcd67;outline-offset:3px}
.hero{min-height:760px;max-width:1510px;margin:auto;padding-top:152px;padding-bottom:100px;display:grid;grid-template-columns:minmax(380px,.9fr) minmax(510px,1.1fr);align-items:center;gap:clamp(28px,4.8vw,80px);overflow:visible;background:transparent}
.hero:before{content:'';position:absolute;top:10%;right:-8%;width:67%;aspect-ratio:1.25;border-radius:50%;background:radial-gradient(circle,rgba(193,235,173,.42),rgba(236,250,235,0) 66%);pointer-events:none;z-index:-1}
.hero-copy{max-width:595px}
.hero-brow{display:inline-flex;align-items:center;gap:10px;margin-bottom:26px;padding:8px 12px;color:#176a49;background:#e2f3dc;border:1px solid rgba(23,106,73,.075);border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.015em}
.hero-brow-dot{width:7px;height:7px;border-radius:50%;background:#2f9f62}
.hero-brow-star{font-size:17px;color:#9abf51;line-height:1}
.hero h1{font-size:clamp(43px,4.3vw,69px);line-height:1.19;letter-spacing:-.059em;font-weight:800;margin:0 0 25px}
.hero-highlight{display:inline;box-decoration-break:clone;-webkit-box-decoration-break:clone;background:linear-gradient(to top,rgba(203,242,157,.85) 0 23%,transparent 23%);padding:0 4px}
.hero-lede{max-width:510px;font-size:16px;line-height:1.95;color:#65766b;margin:0}
.hero-actions{display:flex;flex-direction:row;flex-wrap:wrap;gap:13px;margin-top:32px}
.hero-actions .button{padding:18px 24px;font-size:14px}
.hero-meta{margin-top:36px;display:flex;flex-wrap:wrap;gap:13px 24px;color:#637a68;font-family:var(--sans);font-size:11px;letter-spacing:0}
.hero-meta span{display:inline-flex;align-items:center;gap:5px}
.hero-meta span:last-child{margin-left:0}
.hero-meta svg{width:14px;height:14px;stroke:#278657}
.hero-stage{height:auto;min-height:0;max-height:none;position:relative;isolation:isolate}
.hero-stage:before{display:none}
.hero-preview{position:relative;z-index:2;border:1px solid rgba(39,92,58,.13);border-radius:24px;background:#fff;overflow:hidden;box-shadow:0 34px 80px rgba(34,78,48,.11),0 5px 16px rgba(34,78,48,.045);transform:rotate(-1.2deg)}
.preview-browser{height:44px;padding:0 18px;display:flex;align-items:center;gap:17px;border-bottom:1px solid #edf2eb;background:#fbfcfa}
.preview-dots{display:flex;gap:5px}
.preview-dots b{width:8px;height:8px;background:#dde6db;border-radius:50%}
.preview-dots b:first-child{background:#ebaa9e}
.preview-dots b:nth-child(2){background:#f4d79b}
.preview-dots b:nth-child(3){background:#add9a8}
.preview-url{display:flex;align-items:center;gap:6px;color:#7d8d81;font-size:10px}
.preview-url svg{width:12px;height:12px}
.preview-browser-label{margin-left:auto;color:#a4b1a6;font-size:10px}
.preview-layout{display:grid;grid-template-columns:148px 1fr;min-height:396px}
.preview-sidebar{background:#f5f9f4;border-right:1px solid #edf1ec;padding:19px 12px;display:flex;flex-direction:column;gap:6px;color:#819183;font-size:11px;white-space:nowrap}
.preview-brand{display:flex;align-items:center;gap:7px;margin:1px 0 27px;color:#24543d;font-size:13px}
.preview-brand img{object-fit:contain}
.preview-sidebar>span{display:flex;align-items:center;gap:7px;padding:10px 9px;border-radius:9px}
.preview-sidebar>span svg{width:14px;height:14px}
.preview-sidebar>span.is-current{color:#176a49;background:#e3f2df;font-weight:700}
.preview-sidebar-bottom{display:flex;align-items:center;gap:7px;margin-top:auto;padding:8px 6px;color:#94a496;font-size:9px}
.preview-sidebar-bottom svg{width:13px;height:13px}
.preview-content{padding:26px 25px 13px;min-width:0}
.preview-heading{display:flex;justify-content:space-between;gap:8px;align-items:center}
.preview-heading small{color:#8c9d8d;font-size:9px;letter-spacing:.09em}
.preview-heading h2{font-size:clamp(16px,1.5vw,22px);line-height:1.4;letter-spacing:-.045em;margin:5px 0 0;font-weight:800}
.preview-class-chip{display:inline-flex;gap:5px;align-items:center;background:#f2f7f1;color:#52725c;padding:8px 9px;border-radius:8px;white-space:nowrap;font-size:10px}
.preview-class-chip svg{width:12px;height:12px}
.preview-tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin-top:25px}
.preview-tile{display:flex;flex-direction:column;align-items:flex-start;min-width:0;gap:5px;padding:13px 9px 12px;border:1px solid #edf0ea;background:#fff;border-radius:12px}
.preview-tile-icon{display:grid;place-items:center;width:33px;height:33px;border-radius:10px;margin-bottom:7px}
.preview-tile-icon svg{width:18px;height:18px}
.preview-tile-icon.mint{background:#e1f3e6;color:#29875e}
.preview-tile-icon.lime{background:#e8f5c5;color:#648a34}
.preview-tile-icon.peach{background:#fff0e6;color:#ba7b4b}
.preview-tile-icon.blue{background:#e9efff;color:#5e81b5}
.preview-tile strong{font-size:10px;color:#324b38;white-space:nowrap}
.preview-tile small{font-size:9px;color:#91a094;white-space:nowrap}
.preview-today{border:1px solid #edf0e9;background:#fcfdfb;border-radius:14px;padding:12px 14px;margin-top:13px}
.preview-today-head,.preview-today-row{display:flex;justify-content:space-between;align-items:center}
.preview-today-head strong{font-size:11px}
.preview-today-head>span{font-size:9px;color:#9bada0}
.preview-today-row{padding:10px 1px 8px;margin-top:5px;border-top:1px solid #edf0e9;font-size:10px}
.preview-today-row>span{display:flex;align-items:center;gap:7px}
.preview-today-row svg{width:14px;height:14px;color:#639979}
.preview-today-row em{font-style:normal;color:#7b9381}
.preview-today-row:first-of-type em{color:#217d52}
.preview-disclaimer{font-size:9px;color:#a8b5a8;margin:10px 2px 0}
.preview-float{position:absolute;right:-17px;bottom:-25px;z-index:3;display:flex;align-items:center;gap:10px;padding:13px 19px;background:#d5efa8;color:#245a40;border:1px solid rgba(23,106,73,.11);box-shadow:0 15px 30px rgba(35,78,49,.11);border-radius:15px;transform:rotate(3deg);font-size:11px;line-height:1.55}
.preview-float-icon{display:grid;place-items:center;background:#fff9;width:32px;height:32px;border-radius:10px}
.preview-float svg{width:17px;height:17px}
.preview-float strong{font-size:13px}
.scroll-cue{left:max(28px,calc((100vw - 1260px)/2));bottom:34px;font-family:var(--sans);font-size:11px;letter-spacing:0}
.statement{padding-top:103px;padding-bottom:111px;background:#fff}
.section-kicker{margin-bottom:47px;letter-spacing:.07em}
.section-kicker span:first-child{color:#176a49}
.statement-grid{grid-template-columns:1.25fr .75fr;gap:5vw}
.statement h2,.school-head h2{font-size:clamp(38px,4.3vw,64px);line-height:1.22}
.statement-aside p,.school-head p,.import-copy p{line-height:1.85}
.accent{color:#176a49}
.accent:after{background:#d4ef9c}
.scene-triad{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:62px}
.scene-card{min-height:300px;border:1px solid rgba(23,106,73,.08);border-radius:25px;padding:27px;position:relative;overflow:hidden}
.scene-before{background:#eff7eb}
.scene-during{background:#e8f4e9}
.scene-after{background:#f4f0e8}
.scene-card-top{display:flex;justify-content:space-between;align-items:center;color:#62806c;font-size:11px;font-weight:700}
.scene-card-top svg{width:21px;height:21px}
.scene-card h3{position:relative;z-index:1;font-size:clamp(22px,2.25vw,32px);line-height:1.35;letter-spacing:-.045em;margin:27px 0 12px}
.scene-card p{position:relative;z-index:1;max-width:265px;color:#6b8173;line-height:1.7;font-size:12px}
.scene-card-tags{display:flex;flex-wrap:wrap;gap:6px;position:absolute;z-index:2;bottom:23px;left:27px;right:20px}
.scene-card-tags span{padding:6px 9px;border:1px solid rgba(31,73,49,.09);background:rgba(255,255,255,.65);border-radius:7px;font-size:10px;color:#56715c}
.scene-card-decor{position:absolute;right:-12px;bottom:26px;opacity:.075;transform:rotate(-12deg);color:#176a49}
.scene-card-decor svg{width:150px;height:150px;stroke-width:1}
.atlas{margin-top:83px;border-top:0}
.atlas-nav{display:flex;gap:9px;flex-wrap:wrap;border-bottom:0;margin-bottom:17px}
.atlas-tab,.atlas-tab:first-child{flex:1;min-width:140px;justify-content:space-between;gap:8px;padding:16px 19px;border:1px solid rgba(31,73,49,.10);border-radius:12px;background:#f7faf6;transition:background .2s,color .2s,border-color .2s}
.atlas-tab:hover,.atlas-tab.is-active{background:#d7efb5;color:#214f35;border-color:#c0dea5}
.atlas-tab span{font-size:10px}
.atlas-panel{background:#f9fcf8;color:var(--ink);border:1px solid rgba(31,73,49,.1);border-radius:25px;overflow:hidden;box-shadow:0 16px 35px rgba(23,106,73,.045);grid-template-columns:.77fr 1.23fr}
.atlas-panel-copy{padding:47px 4vw}
.panel-number{color:#7b9382}
.atlas-panel h3{font-size:clamp(34px,3.5vw,56px)}
.atlas-panel p{color:#697e70}
.tag-row span{border-color:rgba(23,106,73,.15);border-radius:7px;color:#50715a}
.light-link{color:#176a49;border-color:#96c3a4}
.atlas-visual{margin:18px;background:#eaf5e8;border-radius:18px;min-height:480px}
.classboard{border-radius:14px;box-shadow:0 20px 40px rgba(24,75,40,.1)}
.flow-section{background:#e8f5e5;color:var(--ink);padding-top:100px;padding-bottom:106px}
.flow-section:before{color:rgba(23,106,73,.035)}
.flow-intro h2{color:var(--ink)}
.flow-intro h2 em{color:#176a49}
.flow-intro p{color:#668070}
.light-kicker{color:#7a9580}
.light-kicker span:first-child{color:#176a49}
.flow-rail{margin-top:72px}
.flow-rail-three{grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}
.flow-line{background:rgba(23,106,73,.16)}
.flow-line span{background:#176a49}
.flow-icon{background:#d1eead;color:#176a49}
.flow-step h3{font-size:24px}
.flow-step p{color:#718579}
.flow-number{color:#567b65}
.flow-code{color:#176a49;font-size:10px}
.school-section{padding-top:108px;padding-bottom:113px;background:#fff}
.workspace-shell{margin-top:60px;border-radius:25px;box-shadow:0 24px 55px rgba(20,64,40,.09)}
.workspace-nav .nav-selected{border-radius:8px}
.import-section{background:#ecf6e8;padding-top:98px;padding-bottom:104px}
.import-visual{border-radius:24px;box-shadow:0 20px 40px rgba(35,90,46,.11)}
.downloads-section{padding-top:100px;padding-bottom:100px}
.download-card{border-radius:22px;box-shadow:0 18px 35px rgba(24,65,41,.075)}
.downloads-preview-trigger{display:inline-flex;align-items:center;gap:8px;margin-top:16px;border:1px solid rgba(23,106,73,.2);border-radius:10px;background:#fff;padding:11px 15px;color:#176a49;cursor:pointer;font-size:12px;font-weight:700}
.downloads-preview-trigger:hover{background:#e7f3df}
.downloads-preview-trigger svg{width:16px;height:16px}
.trust-section{padding-top:105px;padding-bottom:110px}
.mascot-section{padding-top:92px;padding-bottom:106px}
.cta-section{padding-top:100px;padding-bottom:110px}
@media(max-width:1190px){
 .desktop-nav{gap:16px;margin-left:0}
 .header-actions{gap:12px}
 .hero{grid-template-columns:minmax(330px,.9fr) minmax(450px,1.1fr);gap:27px}
 .preview-layout{grid-template-columns:120px 1fr}
 .preview-sidebar{padding:15px 8px}
 .preview-content{padding:22px 15px 12px}
 .preview-tiles{gap:6px}
 .preview-tile{padding:12px 6px}
}
@media(max-width:960px){
 .hero{display:block;min-height:0;max-width:730px;padding-top:142px;padding-bottom:105px}
 .hero-copy{max-width:670px}
 .hero h1{font-size:clamp(44px,6vw,68px)}
 .hero-stage{margin-top:46px}
 .hero-preview{transform:none}
 .preview-float{right:10px}
 .scene-triad{gap:12px}
 .scene-card{padding:20px;min-height:315px}
 .scene-card-tags{left:20px}
 .scene-card h3{font-size:25px}
}
@media(max-width:780px){
 html{scroll-padding-top:74px}
 .section-pad{padding-left:20px;padding-right:20px}
 .site-header{height:68px;padding-left:16px;padding-right:16px}
 .mobile-menu{background:rgba(250,253,249,.985);max-height:calc(100dvh - 68px);overflow-y:auto}
 .hero{padding-top:118px;padding-bottom:68px;max-width:650px}
 .hero-brow{margin-bottom:22px;font-size:11px}
 .hero h1{font-size:clamp(40px,8vw,62px);margin-bottom:22px}
 .hero-lede{font-size:14px;line-height:1.9}
 .hero-actions{flex-direction:row;align-items:center;gap:10px;margin-top:25px}
 .hero-actions .button{padding:16px 18px}
 .hero-meta{margin-top:27px;gap:9px 15px}
 .hero-stage{height:auto;max-height:none;min-height:0;margin-top:37px}
 .preview-layout{min-height:350px}
 .preview-float{bottom:-25px}
 .statement,.school-section,.flow-section,.import-section,.trust-section,.mascot-section,.cta-section{padding-top:75px;padding-bottom:80px}
 .statement-grid,.school-head{display:block}
 .statement-aside{margin-top:22px;max-width:540px}
 .scene-triad{grid-template-columns:1fr;gap:12px;margin-top:35px}
 .scene-card{min-height:240px;padding:25px}
 .scene-card h3{font-size:26px;margin:18px 0 9px}
 .scene-card p{max-width:70%}
 .scene-card-tags{left:25px}
 .atlas{margin-top:56px}
 .atlas-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
 .atlas-tab,.atlas-tab:first-child{min-width:0;padding:15px 12px}
 .atlas-panel{display:block;border-radius:20px}
 .atlas-panel-copy{padding:25px}
 .atlas-visual{min-height:350px;margin:12px}
 .flow-rail-three{grid-template-columns:1fr;gap:8px;margin-top:36px}
 .flow-line{display:none}
 .flow-step{padding:13px 15px 14px 72px;min-height:92px;border-radius:14px;background:rgba(255,255,255,.54)}
 .flow-step .flow-number{left:15px;top:17px}
 .flow-step .flow-icon{left:34px;top:11px;width:28px;height:28px}
 .flow-step h3{font-size:19px;margin-bottom:4px}
 .flow-step p{min-height:0;max-width:none;margin:0}
 .flow-step .flow-code{display:none}
 .workspace-shell{margin-top:40px}
}
@media(max-width:510px){
 .brand-name{font-size:12px}
 .hero h1{font-size:clamp(38px,9vw,49px)}
 .hero-actions{display:grid;grid-template-columns:1fr;align-items:stretch}
 .hero-actions .button{width:100%;min-height:48px;justify-content:center}
 .hero-meta{font-size:10px}
 .preview-browser{height:37px;padding:0 11px;gap:9px}
 .preview-browser-label{font-size:8px}
 .preview-url{font-size:9px}
 .preview-layout{display:block;min-height:0}
 .preview-sidebar{display:none}
 .preview-content{padding:15px 12px 12px}
 .preview-heading h2{font-size:17px}
 .preview-heading small{font-size:8px}
 .preview-class-chip{padding:6px;font-size:9px}
 .preview-tiles{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:16px}
 .preview-tile{padding:10px 12px;min-height:87px}
 .preview-tile-icon{height:24px;width:24px;margin-bottom:0}
 .preview-tile-icon svg{width:14px;height:14px}
 .preview-tile strong{font-size:11px}
 .preview-tile small{font-size:9px}
 .preview-today{margin-top:10px}
 .preview-float{right:0;bottom:-32px;padding:9px 13px;font-size:10px}
 .preview-float strong{font-size:11px}
 .statement{padding-top:93px}
 .section-kicker{gap:8px;margin-bottom:32px}
 .section-kicker span{font-size:9px}
 .section-kicker span:last-child{display:none}
 .statement h2,.school-head h2{font-size:36px}
 .scene-card{min-height:256px}
 .scene-card p{max-width:72%}
 .atlas-panel-copy{padding:20px}
 .atlas-visual{min-height:320px}
 .downloads-preview-trigger{width:100%;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
 .hero-preview,.preview-float{transform:none}
 .scene-card,.preview-tile{transition:none}
}

/* Keyboard accessibility for the marketing page. */
.skip-link{position:fixed;top:10px;left:16px;z-index:100;padding:10px 16px;border-radius:10px;background:#176a49;color:#fff;transform:translateY(-180%);font-weight:700;font-size:13px}
.skip-link:focus-visible{transform:translateY(0);outline:3px solid #d5efa8;outline-offset:3px}