/* SchoolBell — موقع التعريف بالمنتج (sb.edutech-hub.org)
   الألوان والمسافات كلها متغيّرات: أي تعديل على الهوية يتم من هنا وحده. */
:root{
  --brand:#1554b0; --brand-dark:#0e3c82; --brand-soft:#eaf1fd; --brand-ink:#0b2a5b;
  --ink:#17233a; --muted:#5c6b84; --line:#e3e9f2; --bg:#ffffff; --bg-alt:#f6f9fe;
  --radius:14px; --shadow:0 10px 30px rgba(13,42,92,.10); --wrap:1180px;
  --font:"Segoe UI","Tajawal","Cairo",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.8;direction:rtl}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}

/* ===== الترويسة ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:74px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo .bell{width:42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:20px}
.logo b{font-size:22px;letter-spacing:-.3px;color:var(--brand-ink);display:block;line-height:1.1}
.logo span{font-size:12px;color:var(--muted);font-weight:600}
.links{display:flex;gap:26px;margin-inline-start:auto;font-weight:600;font-size:15px}
.links a{padding:6px 0;border-bottom:2px solid transparent;color:var(--muted)}
.links a:hover,.links a.active{color:var(--brand);border-color:var(--brand)}
.nav-cta{display:flex;gap:10px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:40px;font-size:20px;cursor:pointer}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;border:1.5px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{border-color:var(--line);color:var(--brand-ink);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:15px 32px;font-size:16px}

/* ===== الواجهة الرئيسية ===== */
.hero{background:linear-gradient(160deg,#f2f7ff 0%,#e7f0fd 55%,#dfeaf9 100%);padding:64px 0 54px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.pill{display:inline-block;background:#fff;color:var(--brand);border:1px solid #cfe0fa;padding:7px 18px;border-radius:999px;font-size:13.5px;font-weight:700;margin-bottom:18px}
.hero h1{font-size:44px;line-height:1.25;margin:0 0 6px;color:var(--brand-ink);letter-spacing:-1px}
.hero h1 .en{color:var(--brand);font-size:52px;direction:ltr;display:inline-block}
.hero h2{font-size:26px;margin:0 0 16px;color:var(--brand-ink)}
.hero p{font-size:17px;color:var(--muted);max-width:46ch;margin:0 0 26px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-shot{filter:drop-shadow(0 24px 40px rgba(13,42,92,.18));border-radius:12px}

/* ===== شريط المزايا ===== */
.strip{background:#fff;border-bottom:1px solid var(--line)}
.strip .wrap{display:grid;grid-template-columns:repeat(5,1fr);padding:34px 22px}
.strip .it{text-align:center;padding:0 16px;border-inline-start:1px solid var(--line)}
.strip .it:first-child{border:0}
.ico{width:56px;height:56px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin:0 auto 12px;font-size:24px}
.strip h3{font-size:16px;margin:0 0 6px}
.strip p{font-size:13.5px;color:var(--muted);margin:0}

/* ===== أقسام عامة ===== */
section{padding:72px 0}
.alt{background:var(--bg-alt)}
.head{text-align:center;margin-bottom:44px}
.head h2{font-size:32px;margin:0 0 8px;color:var(--brand-ink)}
.head p{color:var(--muted);margin:0;font-size:16px}

/* ===== لماذا + معرض الشاشات ===== */
.split{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}
.why h2{font-size:30px;margin:0 0 22px;color:var(--brand-ink)}
.why ul{margin:0;padding:0}
.why li{list-style:none;display:flex;gap:12px;margin-bottom:14px;font-size:16px}
.check{flex:0 0 24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;margin-top:4px}
.gallery{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.slides{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.slide{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--bg-alt);cursor:zoom-in;transition:.18s;margin:0}
.slide:hover{border-color:var(--brand);transform:translateY(-3px)}
.slide figcaption{font-size:13px;text-align:center;padding:8px 4px;font-weight:600;color:var(--brand-ink)}

/* ===== المميزات ===== */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.18s}
.card:hover{box-shadow:var(--shadow);border-color:#cfe0fa;transform:translateY(-3px)}
.card .ico{margin:0 0 14px}
.card h3{margin:0 0 8px;font-size:18px;color:var(--brand-ink)}
.card p{margin:0;color:var(--muted);font-size:15px}

/* ===== السعر ===== */
.price{max-width:740px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden;text-align:center}
.price .top{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;padding:34px 24px}
.price .top .amount{font-size:30px;font-weight:800;margin:8px 0 0}
.price .body{padding:30px 28px 34px}
.price ul{list-style:none;margin:0 0 24px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px;text-align:start}
.price li{display:flex;gap:10px;font-size:15px}

/* ===== الأسئلة ===== */
.faq{max-width:860px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;padding:4px 20px}
details[open]{border-color:#cfe0fa;box-shadow:var(--shadow)}
summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:12px;color:var(--brand-ink)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--brand);font-size:22px;line-height:1}
details[open] summary::after{content:"\2212"}
details p{margin:0 0 16px;color:var(--muted);font-size:15px}

/* ===== التواصل ===== */
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:36px;align-items:start}
.contact-box{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;border-radius:20px;padding:34px}
.contact-box h3{margin:0 0 10px;font-size:24px}
.contact-box p{opacity:.92;font-size:15px}
.contact-box .mail{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:12px 20px;border-radius:999px;font-weight:700;margin-top:10px;direction:ltr}
form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-weight:700;font-size:14px;margin:0 0 6px}
input,textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-family:inherit;font-size:15px;margin-bottom:14px;background:var(--bg-alt)}
input:focus,textarea:focus{outline:0;border-color:var(--brand);background:#fff}
textarea{min-height:110px;resize:vertical}
.note{font-size:13px;color:var(--muted);margin:12px 0 0}

/* ===== التذييل ===== */
footer{background:var(--brand-ink);color:#cdd9ee;padding:34px 0}
footer .wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
footer .logo b{color:#fff}
footer .logo span{color:#9fb5d8}
footer .flinks{display:flex;gap:20px;margin-inline-start:auto;font-size:14px}
footer .flinks a:hover{color:#fff}
.copy{font-size:13.5px;width:100%;border-top:1px solid rgba(255,255,255,.12);padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.copy span{direction:ltr}

/* ===== عارض الصور ===== */
.lightbox{position:fixed;inset:0;background:rgba(8,20,42,.86);display:none;place-items:center;z-index:100;padding:30px}
.lightbox.on{display:grid}
.lightbox img{max-height:88vh;border-radius:12px;box-shadow:0 30px 70px rgba(0,0,0,.5)}
.lightbox button{position:absolute;top:22px;inset-inline-start:22px;background:#fff;border:0;width:44px;height:44px;border-radius:50%;font-size:22px;cursor:pointer}

@media(max-width:980px){
  .hero .wrap,.split,.contact{grid-template-columns:1fr}
  .strip .wrap{grid-template-columns:repeat(2,1fr);gap:24px}
  .strip .it{border:0}
  .grid3{grid-template-columns:1fr}
  .price ul,.row{grid-template-columns:1fr}
  .slides{grid-template-columns:1fr 1fr}
  .links{display:none;position:absolute;top:74px;inset-inline:0;background:#fff;flex-direction:column;padding:14px 22px;border-bottom:1px solid var(--line);gap:4px}
  .links.open{display:flex}
  .burger{display:block;margin-inline-start:auto}
  .nav-cta .btn-ghost{display:none}
  .hero h1{font-size:34px}
  .hero h1 .en{font-size:40px}
}