*{box-sizing:border-box;margin:0;padding:0}
:root{--ink:#1d1d1f;--mute:#6e6e73;--soft:#86868b;--teal:#1f8a97;--teal-l:#5bb8c4;--navy:#14213d;--bg:#f5f5f7;--line:#d2d2d7;--font:Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:60px}
body{font-family:var(--font);color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.4}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:1280px;margin:0 auto;padding:0 12px}

/* Arabic */
[dir=rtl]{--font:"IBM Plex Sans Arabic",Inter,system-ui,sans-serif}
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3,[dir=rtl] .facts b{letter-spacing:0!important;line-height:1.25!important}
[dir=rtl] .crop img{object-position:top right}
[dir=rtl] .zoom img{margin-left:-24%}

/* nav */
.gnav{position:sticky;top:0;z-index:50;background:rgba(251,251,253,.8);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.gnav .in{max-width:1024px;margin:0 auto;height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 22px;font-size:12px;color:#424245}
[dir=rtl] .gnav .in{font-size:13px}
.gnav .links{display:flex;gap:34px}
.gnav .links a:hover{color:var(--ink)}
.gnav .end{display:flex;align-items:center;gap:16px}
.lang{color:#424245}
.lang:hover{color:var(--ink)}
.logo{display:flex;align-items:center;gap:7px;font-weight:700;font-size:16px;color:var(--ink)}
.pill{background:var(--ink);color:#fff;border-radius:99px;padding:5px 13px;font-size:12px;font-weight:500;white-space:nowrap}
.pill:hover{background:#000}

/* buttons and links */
.btns{display:flex;gap:14px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:18px}
.b{border-radius:99px;padding:10px 21px;font-size:16px;font-weight:500;border:1px solid transparent;transition:background .2s}
.b-fill{background:var(--teal);color:#fff}
.b-fill:hover{background:#18737e}
.b-line{color:var(--teal);border-color:var(--teal)}
.b-line:hover{background:var(--teal);color:#fff}
.more{color:var(--teal);font-size:17px;background:none;border:0;font-family:inherit;cursor:pointer}
.more:hover{text-decoration:underline}
.dark .more{color:var(--teal-l)}

/* tiles */
.tiles{display:flex;flex-direction:column;gap:12px;padding:12px 0}
.tile{background:var(--bg);text-align:center;overflow:hidden;position:relative;padding:56px 24px 0}
.tile.white{background:#fff}
.tile.dark{background:#000;color:#f5f5f7}
.tile .eyebrow{font-size:17px;font-weight:600;color:var(--teal);margin-bottom:6px}
.dark .eyebrow{color:var(--teal-l)}
.tile h1{font-size:56px;line-height:1.07;font-weight:700;letter-spacing:-.015em}
.tile h2{font-size:48px;line-height:1.08;font-weight:700;letter-spacing:-.01em}
.tile .sub{font-size:24px;line-height:1.3;margin-top:6px}
.tile.dark .sub{color:#f5f5f7}
.tile .sub.quiet{color:#a1a1a6}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.duo .tile h2{font-size:40px}
.duo .tile .sub{font-size:19px}
.shot{margin:40px auto 0;border-radius:14px 14px 0 0;overflow:hidden;box-shadow:0 -4px 40px rgba(0,0,0,.08);background:#fff}
.dark .shot{box-shadow:0 0 0 1px #2a2a2c}
.shot img{width:100%}
.crop{height:420px}
.crop img{object-fit:cover;object-position:top left;height:100%}
.duo .crop{height:300px}
.zoom img{width:150%;max-width:none;margin-left:-26%}
.hero-shot{max-width:1000px}

/* details drawer */
.detail{max-height:0;overflow:hidden;transition:max-height .5s ease}
.detail ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:720px;margin:18px auto 0}
.detail li{background:#fff;border-radius:99px;padding:8px 14px;font-size:14px;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.06)}
.dark .detail li{background:#1d1d1f;color:#f5f5f7;box-shadow:none}
.open .detail{max-height:300px}

/* phone */
.phone{width:250px;margin:40px auto 0;background:#1d1d1f;border-radius:44px 44px 0 0;padding:12px 12px 0}
.phone .scr{border-radius:34px 34px 0 0;overflow:hidden;height:400px}
.phone img{width:100%;object-fit:cover;object-position:top}

/* classroom tile: one full, uncropped screenshot */
.full-shot{max-width:1000px;margin:40px auto 56px;border-radius:14px;overflow:hidden;box-shadow:0 0 0 1px #2a2a2c}
.full-shot img{width:100%;height:auto}
.class-duo{position:relative;max-width:880px;margin:40px auto 90px}
.class-duo .full-shot{margin:0;border-radius:22px;padding:10px;background:linear-gradient(150deg,#f5f5f7 0%,#c7c7cc 45%,#8e8e93 100%);box-shadow:0 0 0 1px rgba(255,255,255,.35),0 30px 80px rgba(91,184,196,.18)}
.class-duo .full-shot img{border-radius:12px;border:4px solid #000}
.handset{position:absolute;left:-70px;bottom:-50px;width:200px;background:linear-gradient(150deg,#f5f5f7 0%,#c7c7cc 45%,#8e8e93 100%);border-radius:36px;padding:7px;box-shadow:0 0 0 1px rgba(255,255,255,.35),0 24px 60px rgba(0,0,0,.6)}
.handset img{width:100%;height:auto;border-radius:30px;border:4px solid #000}
@media(max-width:1100px){.class-duo{margin-left:90px;margin-right:24px}}
@media(max-width:800px){.class-duo{margin:30px 4px 60px 40px}.class-duo .full-shot{padding:5px;border-radius:12px}.class-duo .full-shot img{border-width:2px;border-radius:8px}.handset{width:96px;left:-36px;bottom:-30px;padding:4px;border-radius:20px}.handset img{border-width:2px;border-radius:16px}}

/* facts */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;padding:80px 24px;max-width:1024px;margin:0 auto}
.facts b{display:block;font-size:56px;font-weight:700;letter-spacing:-.02em;color:var(--teal)}
.facts span{color:var(--mute);font-size:16px}

/* roles */
.roles{max-width:1024px;margin:0 auto;padding:20px 24px 90px;text-align:center}
.roles h2{font-size:48px;font-weight:700;letter-spacing:-.01em}
.roles .sub{font-size:21px;color:var(--mute);margin-top:8px}
.role-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:40px;text-align:start}
.role{background:var(--bg);border-radius:18px;padding:26px}
.role h3{font-size:21px;font-weight:700}
.role p{font-size:15px;color:var(--mute);margin-top:8px;line-height:1.6}

/* demo */
.demo{background:var(--bg);padding:90px 24px}
.demo .in{max-width:980px;margin:0 auto;display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.demo h2{font-size:48px;line-height:1.08;font-weight:700;letter-spacing:-.01em}
.demo p.lead{font-size:21px;color:var(--mute);margin-top:14px;line-height:1.5}
.demo ul{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:12px;font-size:17px}
.demo ul li::before{content:"✓";color:var(--teal);font-weight:700;margin-inline-end:10px}
.demo .wa-note{display:flex;gap:10px;align-items:center;margin-top:28px;font-size:15px;color:var(--mute)}
.demo .wa-note svg{flex:none}
form{background:#fff;border-radius:22px;padding:30px;box-shadow:0 2px 20px rgba(0,0,0,.05)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;font-size:13px;color:var(--mute);margin:14px 0 6px}
input,select,textarea{width:100%;font:inherit;font-size:16px;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;color:var(--ink)}
input[type=tel],input[type=email]{direction:ltr}
[dir=rtl] input[type=tel],[dir=rtl] input[type=email]{text-align:right}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 4px rgba(31,138,151,.15)}
.err{color:#c0392b;font-size:13px;margin-top:6px;display:none}
.invalid .err{display:block}
.invalid input,.invalid select{border-color:#c0392b}
.send{width:100%;margin-top:22px;border:0;cursor:pointer;font:inherit;font-size:17px;font-weight:500;background:#25d366;color:#fff;border-radius:12px;padding:14px;display:flex;align-items:center;justify-content:center;gap:10px}
.send:hover{background:#1ebe5a}
.fine{font-size:12px;color:var(--soft);margin-top:12px;text-align:center}
.done{display:none;text-align:center;padding:30px 10px}
.done h3{font-size:28px;margin-top:10px}
.done p{color:var(--mute);margin-top:8px;line-height:1.5}
.done .send{width:auto;display:inline-flex;margin-top:22px;padding:12px 22px;text-decoration:none}
.done .again{display:block;margin:14px auto 0;font-size:14px}
.sent .fields{display:none}
.sent .done{display:block}

/* faq */
.faq{max-width:820px;margin:0 auto;padding:90px 24px}
.faq h2{font-size:40px;font-weight:700;text-align:center;margin-bottom:30px}
details{border-bottom:1px solid var(--line);padding:20px 0}
summary{font-size:19px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-weight:400;color:var(--teal);font-size:24px;line-height:1}
details[open] summary::after{content:"−"}
details p{color:var(--mute);font-size:17px;margin-top:10px;line-height:1.6}

/* footer */
footer{background:var(--bg);font-size:12px;color:var(--mute)}
footer .in{max-width:1024px;margin:0 auto;padding:30px 22px}
.fcols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.fcols b{color:var(--ink);display:block;margin-bottom:8px}
.fcols a{display:block;margin:6px 0}
.fcols a:hover{text-decoration:underline}
.fbot{display:flex;justify-content:space-between;padding-top:16px;flex-wrap:wrap;gap:10px}

/* motion */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media(max-width:1000px){.role-grid{grid-template-columns:1fr 1fr}}
@media(max-width:800px){
  .gnav .links{display:none}
  .duo{grid-template-columns:1fr}
  .tile h1{font-size:40px}.tile h2,.duo .tile h2{font-size:34px}.tile .sub{font-size:19px}
  .crop{height:240px}.duo .crop{height:220px}
  .facts{grid-template-columns:1fr 1fr;padding:56px 16px}.facts b{font-size:42px}
  .demo .in{grid-template-columns:1fr;gap:30px}.demo h2,.roles h2{font-size:36px}
  .row{grid-template-columns:1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .tile{padding:44px 16px 0}
  form{padding:22px}
}
@media(max-width:520px){.role-grid{grid-template-columns:1fr}}