/* ── Variables ── */
:root {
  --primary:      #3d72ff;
  --primary-dark: #2857d6;
  --primary-glow: rgba(61,114,255,0.2);
  --gold:         #f0b429;
  --success:      #22c55e;

  --bg-base:      #080b14;
  --bg-surface:   #0d1120;
  --bg-card:      #111827;
  --bg-muted:     #1a2236;

  --border:       rgba(255,255,255,0.07);
  --text-primary: #edf2ff;
  --text-secondary:#8892a8;

  --radius-sm:    10px;
  --radius:       14px;
  --radius-lg:    20px;
  --nav-height:   64px;
  --shadow-glow:  0 0 24px rgba(61,114,255,0.3);
}

[data-theme="light"] {
  --bg-base:       #f4f6fb;
  --bg-surface:    #ffffff;
  --bg-card:       #ffffff;
  --bg-muted:      #eef1f8;
  --border:        rgba(0,0,0,0.08);
  --text-primary:  #0d1120;
  --text-secondary:#5a6480;
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Cairo', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  direction: rtl;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ── NAVBAR ── */
.acwad-nav {
  background: rgba(8,11,20,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 9999;
  width: 100%;
}
[data-theme="light"] .acwad-nav { background: rgba(255,255,255,0.97); }

.nav-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  padding: 0 1.5rem;
  gap: 1rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.55rem;
  font-size: 1.2rem; font-weight: 900;
  color: var(--text-primary); white-space: nowrap;
}
.logo-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; box-shadow: var(--shadow-glow); flex-shrink: 0;
}
.nav-logo .accent { color: var(--gold); }
.nav-desktop-links {
  display: flex; align-items: center; gap: 0.2rem;
  list-style: none; flex: 1; padding: 0 1rem;
}
.nav-desktop-links a {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600;
  color: var(--text-secondary); white-space: nowrap;
}
.nav-desktop-links a:hover { color: var(--text-primary); background: var(--bg-muted); }
.nav-desktop-links a.active { color: var(--primary); background: var(--bg-muted); }
.nav-actions { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
#guestActions { display: flex; align-items: center; gap: 0.5rem; }
.cart-btn {
  position: relative; display: flex; align-items: center; justify-content: center;
  background: var(--bg-muted); border: 1px solid var(--border);
  color: var(--text-primary); border-radius: var(--radius-sm);
  padding: 0.45rem 0.8rem; font-size: 1rem; cursor: pointer;
}
.cart-btn:hover { border-color: var(--primary); color: var(--primary); }
.cart-badge {
  position: absolute; top: -6px; left: -6px;
  background: var(--primary); color: #fff;
  font-size: 0.65rem; font-weight: 700;
  width: 17px; height: 17px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--bg-base);
}
.theme-toggle {
  background: var(--bg-muted); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.45rem 0.7rem;
  font-size: 0.9rem; cursor: pointer; color: var(--text-primary);
}
.btn-login {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.9rem; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 600;
  color: var(--text-secondary); border: 1px solid var(--border);
  background: transparent; white-space: nowrap;
}
.btn-login:hover { color: var(--text-primary); border-color: var(--text-secondary); }
.btn-signup {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.9rem; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 700;
  color: #fff; background: var(--primary); white-space: nowrap;
}
.btn-signup:hover { background: var(--primary-dark); }
.nav-hamburger {
  display: none; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--bg-muted); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 1rem;
  cursor: pointer; color: var(--text-primary); flex-shrink: 0;
}
.nav-hamburger:hover { border-color: var(--primary); color: var(--primary); }
.nav-mobile-menu {
  display: none; flex-direction: column;
  background: var(--bg-surface); border-top: 1px solid var(--border);
  padding: 0.5rem 0;
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; font-size: 0.95rem; font-weight: 600;
  color: var(--text-secondary); border-bottom: 1px solid var(--border);
}
.nav-mobile-menu a:hover { color: var(--text-primary); background: var(--bg-muted); }
.nav-mobile-menu a.active { color: var(--primary); }
.nav-mobile-menu a:last-child { border-bottom: none; }
.mobile-divider { height: 1px; background: var(--border); margin: 0.25rem 0; }
.nav-mobile-menu .btn-signup-mobile {
  margin: 0.75rem 1.5rem; padding: 0.6rem 1rem;
  background: var(--primary); color: #fff;
  border-radius: var(--radius-sm); font-weight: 700;
  text-align: center; justify-content: center; border-bottom: none;
}
@media (max-width: 768px) {
  .nav-desktop-links, .btn-login, .btn-signup { display: none; }
  .nav-hamburger { display: flex; }
}
@media (min-width: 769px) {
  .nav-hamburger { display: none; }
  .nav-mobile-menu { display: none !important; }
}

/* ── HERO ── */
.hero {
  padding: 5rem 1.5rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 400px;
  background: radial-gradient(ellipse, rgba(61,114,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--bg-muted); border: 1px solid var(--border);
  padding: 0.35rem 1rem; border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  color: var(--primary); margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
}
.hero h1 span { color: var(--primary); }
.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 2rem;
}
.hero-btns {
  display: flex; align-items: center; justify-content: center;
  gap: 0.75rem; flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--primary); color: #fff;
  padding: 0.7rem 1.6rem; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 700;
  box-shadow: 0 4px 20px var(--primary-glow);
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.7rem 1.6rem; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 600;
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.hero-stats {
  display: flex; align-items: center; justify-content: center;
  gap: 2.5rem; flex-wrap: wrap;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 1.8rem; font-weight: 900;
  color: var(--text-primary); display: block;
}
.stat-num span { color: var(--primary); }
.stat-label { font-size: 0.85rem; color: var(--text-secondary); }

/* ── SECTION LAYOUT ── */
.section { padding: 4rem 1.5rem; }
.section-alt { background: var(--bg-surface); }
.container { max-width: 1100px; margin: 0 auto; }
.section-head { text-align: center; margin-bottom: 2.5rem; }
.section-head h2 { font-size: 1.8rem; font-weight: 900; margin-bottom: 0.5rem; }
.section-head p { color: var(--text-secondary); font-size: 0.95rem; }
.section-head .section-tag {
  display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--primary); font-size: 0.82rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* ── TEACHERS ── */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}
.teacher-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
  cursor: pointer;
}
.teacher-card:hover { border-color: var(--primary); }
.teacher-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--bg-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; font-weight: 900;
  color: var(--primary);
  margin: 0 auto 0.75rem;
  border: 2px solid var(--border);
}
.teacher-card h4 { font-size: 0.88rem; font-weight: 700; margin-bottom: 0.2rem; }
.teacher-card span {
  font-size: 0.78rem; color: var(--text-secondary);
  background: var(--bg-muted); padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

/* ── PRODUCTS GRID ── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.product-card:hover { border-color: var(--primary); }
.product-badge-wrap {
  padding: 1.25rem 1.25rem 0;
  display: flex; align-items: center; justify-content: space-between;
}
.badge {
  font-size: 0.72rem; font-weight: 700;
  padding: 0.2rem 0.6rem; border-radius: 999px;
}
.badge-code { background: rgba(61,114,255,0.15); color: var(--primary); }
.badge-book { background: rgba(240,180,41,0.15); color: var(--gold); }
.badge-new  { background: rgba(34,197,94,0.15);  color: var(--success); }
.product-icon {
  width: 52px; height: 52px;
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin: 1rem 1.25rem 0;
}
.product-body { padding: 0.75rem 1.25rem 1.25rem; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.25rem; }
.product-body p { font-size: 0.82rem; color: var(--text-secondary); flex: 1; }
.product-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 1rem;
}
.product-price { font-size: 1.05rem; font-weight: 900; color: var(--primary); }
.product-price small { font-size: 0.75rem; color: var(--text-secondary); font-weight: 400; }
.btn-buy {
  background: var(--primary); color: #fff;
  border: none; border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem; font-size: 0.82rem;
  font-weight: 700; cursor: pointer; font-family: inherit;
}
.btn-buy:hover { background: var(--primary-dark); }

/* ── HOW IT WORKS ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.step-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem 1.5rem;
  position: relative;
}
.step-num {
  width: 40px; height: 40px;
  background: var(--primary); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 900; margin-bottom: 1rem;
}
.step-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.step-card p  { font-size: 0.88rem; color: var(--text-secondary); }

/* ── FOOTER ── */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  max-width: 1100px; margin: 0 auto;
}
.footer-brand p {
  font-size: 0.9rem; color: var(--text-secondary);
  margin-top: 0.75rem; max-width: 280px; line-height: 1.7;
}
.footer-col h5 {
  font-size: 0.9rem; font-weight: 700;
  color: var(--text-primary); margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a { font-size: 0.88rem; color: var(--text-secondary); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact p {
  font-size: 0.88rem; color: var(--text-secondary);
  display: flex; align-items: center; gap: 0.4rem;
  margin-bottom: 0.4rem;
}
.footer-bottom {
  max-width: 1100px; margin: 2rem auto 0;
  padding-top: 1.25rem; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.5rem;
  font-size: 0.82rem; color: var(--text-secondary);
}

@media (max-width: 768px) {
  .hero { padding: 3.5rem 1.25rem 3rem; }
  .hero-stats { gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { justify-content: center; text-align: center; }
}