/* ==========================================================================
   Step Ahead Series — Brand Stylesheet
   Palette locked to the logo. No colors outside the identity.
   ========================================================================== */

:root{
  --purple:#6B2FA0;
  --purple-soft:#9B4D9E;
  --blue:#1B4F9C;
  --blue-deep:#173B7A;
  --teal:#2BA9CE;
  --lime:#8DC63F;
  --ink:#1E2340;
  --paper:#FFFFFF;
  --mist:#F5F6FB;
  --line:#E7E9F3;
  --muted:#6C7192;

  --grad-brand:linear-gradient(100deg,var(--purple) 0%,var(--blue) 45%,var(--teal) 100%);
  --grad-lime:linear-gradient(100deg,var(--teal),var(--lime));
  --shadow-sm:0 2px 10px rgba(30,35,64,.06);
  --shadow-md:0 10px 30px rgba(30,35,64,.10);
  --shadow-lg:0 20px 55px rgba(30,35,64,.16);
  --radius:16px;
  --radius-lg:24px;
  --container:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Cairo',system-ui,'Segoe UI',Tahoma,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  direction:rtl;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}

.container{max-width:var(--container);margin-inline:auto;padding-inline:20px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  border:none;border-radius:999px;padding:12px 26px;font-weight:700;font-size:15px;
  transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px rgba(107,47,160,.28)}
.btn-lime{background:var(--lime);color:#0f2a00;box-shadow:0 8px 22px rgba(141,198,63,.35)}
.btn-outline{background:#fff;color:var(--purple);border:2px solid var(--purple)}
.btn-ghost{background:var(--mist);color:var(--ink)}
.btn-block{width:100%}
.btn-sm{padding:8px 16px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- Topbar / announcement ---------- */
.announce{background:var(--grad-brand);color:#fff;text-align:center;font-size:13px;font-weight:600;padding:8px 16px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.brand .logo-img{height:44px;width:auto}
.brand .brand-fallback{font-size:22px;font-weight:900;letter-spacing:-.5px}
.brand .brand-fallback .a{color:var(--purple)} 
.nav-links{display:flex;gap:6px;margin-inline-start:auto;align-items:center}
.nav-links a{padding:9px 15px;border-radius:999px;font-weight:600;font-size:15px;color:var(--ink);transition:background .15s,color .15s}
.nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--purple)}
.cart-btn{position:relative;display:inline-flex;align-items:center;gap:8px;background:var(--grad-brand);color:#fff;padding:10px 18px;border-radius:999px;font-weight:700}
.cart-badge{position:absolute;top:-6px;left:-6px;background:var(--lime);color:#0f2a00;min-width:22px;height:22px;border-radius:999px;font-size:12px;font-weight:800;display:grid;place-items:center;padding:0 5px}
.menu-toggle{display:none;background:none;border:none;font-size:26px;color:var(--purple)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--mist)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:64px 0}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);color:var(--purple);font-weight:700;font-size:13px;padding:7px 14px;border-radius:999px;box-shadow:var(--shadow-sm);margin-bottom:18px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:900;letter-spacing:-1px}
.hero h1 .grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:var(--muted);margin:18px 0 28px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:34px}
.hero-stats .stat b{display:block;font-size:26px;font-weight:900;color:var(--purple)}
.hero-stats .stat span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative;min-height:360px}
.hero-blob{position:absolute;inset:0;background:var(--grad-brand);border-radius:38% 62% 55% 45% / 45% 45% 55% 55%;filter:blur(2px);opacity:.14}
.hero-cards{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:14px}
.book-chip{background:#fff;border-radius:14px;box-shadow:var(--shadow-md);overflow:hidden;aspect-ratio:3/4;display:grid;place-items:center;font-weight:800;text-align:center;padding:10px;font-size:13px;transition:transform .2s}
.book-chip:hover{transform:translateY(-6px) rotate(-1deg)}
.book-chip.c1{background:linear-gradient(160deg,#fff,#eafbe6);color:var(--lime)}
.book-chip.c2{background:linear-gradient(160deg,#fff,#e5f6fb);color:var(--teal)}
.book-chip.c3{background:linear-gradient(160deg,#fff,#f0e8f8);color:var(--purple)}

/* ---------- Section ---------- */
.section{padding:64px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px}
.section-head .eyebrow{color:var(--teal);font-weight:800;font-size:14px;letter-spacing:1px;text-transform:uppercase}
.section-head h2{font-size:clamp(26px,4vw,38px);font-weight:900;margin-top:8px;letter-spacing:-.5px}
.section-head p{color:var(--muted);margin-top:10px}
.section.alt{background:var(--mist)}

/* ---------- Category pills ---------- */
.cat-bar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:36px}
.cat-pill{padding:10px 20px;border-radius:999px;background:#fff;border:1.5px solid var(--line);font-weight:700;color:var(--ink);transition:all .15s}
.cat-pill:hover,.cat-pill.active{background:var(--grad-brand);color:#fff;border-color:transparent}

/* ---------- Product grid ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.product-thumb{position:relative;aspect-ratio:4/5;background:var(--mist);display:grid;place-items:center;overflow:hidden}
.product-thumb img{width:100%;height:100%;object-fit:cover}
.product-thumb .ph{font-weight:800;color:var(--muted);text-align:center;padding:16px;font-size:14px}
.badge{position:absolute;top:12px;inline-start:12px;font-size:11px;font-weight:800;padding:5px 11px;border-radius:999px;color:#fff}
.badge-cat{inset-inline-start:12px;top:12px;background:var(--purple)}
.badge-sale{inset-inline-end:12px;top:12px;background:var(--lime);color:#0f2a00}
.badge-out{position:absolute;inset:0;background:rgba(30,35,64,.55);color:#fff;display:grid;place-items:center;font-weight:800}
.product-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-level{font-size:12px;color:var(--teal);font-weight:700}
.product-name{font-weight:800;font-size:16px;line-height:1.4}
.product-price{display:flex;align-items:baseline;gap:8px;margin-top:auto}
.product-price .now{font-size:20px;font-weight:900;color:var(--purple)}
.product-price .was{font-size:14px;color:var(--muted);text-decoration:line-through}
.product-actions{display:flex;gap:8px;margin-top:8px}

/* ---------- Cart / tables ---------- */
.cart-wrap{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}
.cart-list{display:flex;flex-direction:column;gap:14px}
.cart-row{display:grid;grid-template-columns:80px 1fr auto;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px}
.cart-row .thumb{width:80px;height:80px;border-radius:12px;background:var(--mist);overflow:hidden;display:grid;place-items:center;font-size:11px;color:var(--muted);font-weight:700;text-align:center}
.cart-row .thumb img{width:100%;height:100%;object-fit:cover}
.qty{display:inline-flex;align-items:center;border:1.5px solid var(--line);border-radius:999px;overflow:hidden}
.qty button{width:34px;height:34px;border:none;background:#fff;font-size:18px;font-weight:800;color:var(--purple)}
.qty input{width:46px;text-align:center;border:none;font-weight:800;font-size:15px}
.summary{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;position:sticky;top:96px}
.summary h3{margin-bottom:16px}
.sum-row{display:flex;justify-content:space-between;padding:9px 0;color:var(--muted);font-weight:600}
.sum-row.total{border-top:2px dashed var(--line);margin-top:10px;padding-top:16px;color:var(--ink);font-size:20px;font-weight:900}

/* ---------- Forms ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:14px;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;background:#fff;transition:border-color .15s,box-shadow .15s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 4px rgba(107,47,160,.12)}
.field textarea{min-height:100px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted);margin-top:6px}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ---------- Cards / features ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;text-align:center;transition:transform .18s,box-shadow .18s}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.feature .ic{width:62px;height:62px;border-radius:18px;display:grid;place-items:center;margin:0 auto 16px;font-size:28px;color:#fff}
.ic .ic-img{width:60%;height:60%;object-fit:contain;display:block}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14px}

/* ---------- Teachers CTA band ---------- */
.band{background:var(--grad-brand);border-radius:var(--radius-lg);padding:48px;color:#fff;display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center;position:relative;overflow:hidden}
.band h2{font-size:clamp(24px,3vw,34px);font-weight:900}
.band p{opacity:.92;margin-top:10px}
.band .runner{position:absolute;inset-inline-end:-10px;bottom:-10px;font-size:130px;opacity:.12}

/* ---------- Resource cards ---------- */
.res-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:10px}
.res-card .pdf-ic{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--purple),var(--blue));display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px}
.res-card h3{font-size:17px}
.res-card p{color:var(--muted);font-size:14px;flex:1}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#cfd3ea;margin-top:70px}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:54px 0 30px}
.footer-inner h4{color:#fff;margin-bottom:14px;font-size:16px}
.footer-inner a{display:block;padding:5px 0;color:#cfd3ea;font-size:14px}
.footer-inner a:hover{color:var(--lime)}
.foot-brand .logo-img{height:40px;margin-bottom:14px;filter:brightness(0) invert(1)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;text-align:center;font-size:13px;color:#8b90b5}

/* ---------- Alerts / flash ---------- */
.alert{padding:14px 18px;border-radius:12px;font-weight:600;margin-bottom:20px;border:1px solid transparent}
.alert-success{background:#eafbe6;color:#3e6b12;border-color:#c9ecb0}
.alert-error{background:#fdecea;color:#a5281b;border-color:#f5c6c0}
.alert-info{background:#e5f6fb;color:#155f75;border-color:#bde6f0}

/* ---------- Empty state ---------- */
.empty{text-align:center;padding:70px 20px;color:var(--muted)}
.empty .big{font-size:64px;margin-bottom:16px}

/* ---------- Breadcrumb ---------- */
.crumb{color:var(--muted);font-size:14px;padding:22px 0}
.crumb a:hover{color:var(--purple)}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .nav-links{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:#fff;padding:16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);display:none}
  .nav-links.open{display:flex}
  .nav-links a{width:100%}
  .menu-toggle{display:block;margin-inline-start:auto}
  .cart-btn{order:-1}
  .hero-inner{grid-template-columns:1fr;padding:44px 0 40px}
  .hero-visual{min-height:0;margin-top:8px}
  .hero-blob{inset:6% 12%;opacity:.10}
  .hero-cards{max-width:420px;margin-inline:auto;padding:6px}
  .cart-wrap{grid-template-columns:1fr}
  .summary{position:static}
  .band{grid-template-columns:1fr;padding:34px}
  .features{grid-template-columns:1fr}
}
@media(max-width:640px){
  .grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .row-2{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .product-name{font-size:14px}
  .hero-cards{grid-template-columns:repeat(3,1fr)}
}