:root {
  --color-primary: #d62828;
  --color-primary-dark: #a81f1f;
  --color-dark: #1a1a1a;
  --color-text: #2b2b2b;
  --color-muted: #6b6b6b;
  --color-bg: #ffffff;
  --color-bg-soft: #f7f5f3;
  --color-border: #e7e3df;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.08);
  --container-w: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Tajawal', 'Segoe UI', Tahoma, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* Topbar */
.topbar {
  background: var(--color-dark);
  color: #fff;
  font-size: 13px;
  display: flex;
  justify-content: center;
  gap: 28px;
  padding: 8px 12px;
  flex-wrap: wrap;
  text-align: center;
}
.topbar__item { display: flex; align-items: center; gap: 6px; opacity: .95; }

/* Header */
.header { padding: 16px 0; border-bottom: 1px solid var(--color-border); }
.header__inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 900; color: var(--color-primary); }
.nav { display: flex; gap: 22px; font-weight: 500; }
.nav a { color: var(--color-muted); transition: color .2s; }
.nav a:hover { color: var(--color-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 700;
  border-radius: 999px;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.btn--primary { background: var(--color-primary); color: #fff; box-shadow: 0 8px 20px rgba(214,40,40,.35); }
.btn--primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); }
.btn--secondary { background: var(--color-bg-soft); color: var(--color-text); }
.btn--lg { padding: 16px 32px; font-size: 17px; }
.btn--block { width: 100%; }
.btn:disabled { opacity: .7; cursor: not-allowed; transform: none; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px 20px 60px;
}
.hero__media { background: var(--color-bg-soft); border-radius: var(--radius); overflow: hidden; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero h1 { font-size: 34px; margin: 14px 0 12px; font-weight: 900; line-height: 1.3; }
.hero__subtitle { color: var(--color-muted); font-size: 16px; margin-bottom: 16px; }

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.badge--accent { background: #fdecec; color: var(--color-primary); }

.stars { display: flex; align-items: center; gap: 4px; margin-bottom: 18px; flex-wrap: wrap; }
.stars span { font-size: 13px; color: var(--color-muted); margin-inline-start: 6px; }

.price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; }
.price { font-size: 30px; font-weight: 900; color: var(--color-primary); }
.price--old { font-size: 18px; color: var(--color-muted); text-decoration: line-through; font-weight: 500; }

.trust-mini { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; font-size: 14px; color: var(--color-muted); }

.qty-offers { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.qty-offer {
  position: relative;
  flex: 1;
  min-width: 100px;
  background: var(--color-bg-soft);
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  padding: 12px 10px;
  text-align: center;
  cursor: pointer;
  font-family: inherit;
  transition: border-color .2s ease, transform .15s ease;
}
.qty-offer:hover { transform: translateY(-2px); border-color: var(--color-primary); }
.qty-offer--best { border-color: var(--color-primary); background: #fdecec; }
.qty-offer__badge {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--color-primary); color: #fff; font-size: 10.5px; font-weight: 700;
  padding: 2px 10px; border-radius: 999px; white-space: nowrap;
}
.qty-offer__label { display: block; font-size: 13px; color: var(--color-muted); margin-bottom: 4px; }
.qty-offer__price { display: block; font-size: 16px; font-weight: 900; color: var(--color-text); }
.qty-offer--best .qty-offer__price { color: var(--color-primary); }

/* Sections */
.section-title { font-size: 26px; font-weight: 900; text-align: center; margin-bottom: 8px; }
.section-subtitle { text-align: center; color: var(--color-muted); margin-bottom: 36px; }

.features { padding: 60px 20px; }
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 52px; height: 52px;
  background: #fff;
  color: var(--color-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  box-shadow: 0 4px 10px rgba(0,0,0,.06);
}
.feature-card h3 { font-size: 17px; margin: 0 0 8px; }
.feature-card p { color: var(--color-muted); font-size: 14.5px; margin: 0; }

/* Guarantee */
.guarantee { background: var(--color-dark); color: #fff; padding: 44px 20px; }
.guarantee__grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; text-align: center; }
.guarantee-item svg { color: var(--color-primary); margin-bottom: 10px; }
.guarantee-item h4 { margin: 0 0 8px; font-size: 17px; }
.guarantee-item p { margin: 0; color: #cfcfcf; font-size: 14px; }

/* Reviews */
.reviews { padding: 60px 20px; }
.reviews__grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.review-card { background: var(--color-bg-soft); border-radius: var(--radius); padding: 24px; }
.stars-sm { color: #FFB300; letter-spacing: 2px; margin-bottom: 10px; }
.review-card p { color: var(--color-text); font-size: 14.5px; margin: 0 0 14px; }
.review-author { font-weight: 700; font-size: 13.5px; color: var(--color-muted); }

/* FAQ */
.faq { padding: 40px 20px 70px; max-width: 800px; margin: 0 auto; }
.accordion details {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 12px;
  background: #fff;
}
.accordion summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: '+'; font-size: 20px; color: var(--color-primary); }
.accordion details[open] summary::after { content: '−'; }
.accordion p { color: var(--color-muted); margin: 12px 0 0; font-size: 14.5px; }

/* Final CTA */
.final-cta { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; padding: 60px 20px; text-align: center; }
.final-cta h2 { font-size: 28px; margin: 0 0 10px; }
.final-cta p { margin: 0 0 24px; opacity: .95; }
.final-cta .btn--primary { background: #fff; color: var(--color-primary); box-shadow: 0 8px 20px rgba(0,0,0,.2); }
.final-cta .btn--primary:hover { background: #f2f2f2; }

/* Footer */
.footer { background: var(--color-dark); color: #cfcfcf; padding: 30px 20px 90px; text-align: center; font-size: 14px; }
.footer__inner { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.logo--footer { color: #fff; }
.footer a { color: #fff; text-decoration: underline; }

/* Sticky CTA */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -6px 18px rgba(0,0,0,.08);
  padding: 12px 18px;
  display: none;
  align-items: center;
  justify-content: space-between;
  z-index: 500;
}
.sticky-cta.is-visible { display: flex; }
body.has-sticky { padding-bottom: 76px; }
.sticky-cta__price { font-weight: 900; font-size: 18px; color: var(--color-primary); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  padding: 0;
}
.modal-overlay.is-open { display: flex; }
.modal {
  background: #fff;
  border-radius: 18px 18px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  overflow-y: auto;
  padding: 24px 22px 30px;
  position: relative;
  animation: slideUp .25s ease;
}
@keyframes slideUp { from { transform: translateY(30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal__close {
  position: absolute; top: 12px; left: 14px;
  background: var(--color-bg-soft);
  border: none; width: 34px; height: 34px; border-radius: 50%;
  font-size: 20px; cursor: pointer; color: var(--color-muted);
}
.modal__product { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.modal__product img { width: 76px; height: 76px; object-fit: cover; border-radius: 10px; }
.modal__product h3 { margin: 0 0 4px; font-size: 15.5px; }
.modal__product .price { font-size: 18px; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 15px;
  background: #fff;
  color: var(--color-text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--color-primary);
}
.form-group.has-error input, .form-group.has-error select, .form-group.has-error textarea {
  border-color: var(--color-primary);
}
.error-msg { display: none; color: var(--color-primary); font-size: 12.5px; margin-top: 5px; }
.form-group.has-error .error-msg { display: block; }
.hidden { display: none !important; }
.form-note { text-align: center; font-size: 12.5px; color: var(--color-muted); margin-top: 14px; }
.form-error { color: var(--color-primary); text-align: center; font-size: 13.5px; margin-top: 10px; }

.modal__success { text-align: center; padding: 30px 10px; }
.modal__success h3 { margin: 14px 0 8px; }
.modal__success p { color: var(--color-muted); margin: 0 0 20px; }

/* Responsive */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 24px; }
  .features__grid { grid-template-columns: repeat(2,1fr); }
  .guarantee__grid { grid-template-columns: 1fr; gap: 20px; }
  .reviews__grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .hero h1 { font-size: 26px; }
}
@media (max-width: 480px) {
  .features__grid { grid-template-columns: 1fr; }
  .topbar { gap: 16px; font-size: 12px; }
}