/* متجر شامل — ثيم أبيض تركوازي */
:root {
  --color-primary: #0f766e;
  --color-primary-dark: #115e59;
  --color-accent: #f59e0b;
  --color-accent-soft: #fbbf24;
  --color-tertiary: #14b8a6;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-card: #ffffff;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-border: #d1fae5;
  --shadow: 0 4px 20px rgba(15, 118, 110, 0.08), 0 0 0 1px rgba(15, 118, 110, 0.06);
  --shadow-hover: 0 12px 40px rgba(15, 118, 110, 0.15), 0 0 0 1px rgba(15, 118, 110, 0.12);
  --radius: 16px;
  --radius-sm: 12px;
  --font: 'Tajawal', sans-serif;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* حقول الإدخال */
input:not([type="checkbox"]):not([type="radio"]),
textarea,
select {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
}

/* الهيدر */
.header {
  background: var(--color-surface);
  color: var(--color-text);
  padding: 1.1rem 0;
  box-shadow: 0 2px 20px rgba(15, 118, 110, 0.06);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 2;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  position: relative;
}

.header-left {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform 0.2s;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.header-icon:hover {
  background: rgba(15, 118, 110, 0.2);
  transform: scale(1.05);
}

.header-icon .icon {
  width: 22px;
  height: 22px;
}

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-accent);
  color: #1f2937;
  border-radius: 999px;
  display: none;
  align-items: center;
  justify-content: center;
}

.header-left .header-icon {
  position: relative;
}

.header-brand {
  text-align: center;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-img[src=""],
.logo-img:not([src]) {
  display: none;
}

.logo,
.logo-text {
  margin: 0;
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.tagline {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}

/* زر القائمة (3 خطوط) */
.nav-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border: none;
  background: rgba(15, 118, 110, 0.1);
  color: var(--color-primary);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: rgba(15, 118, 110, 0.2);
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* القائمة الجانبية */
.nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  max-width: 85vw;
  height: 100vh;
  background: var(--color-surface);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
  border-left: 1px solid var(--color-border);
  z-index: 1001;
  padding: 4rem 1.25rem 1.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.nav[aria-hidden="false"] {
  transform: translateX(0);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list li {
  border-bottom: 1px solid var(--color-border);
}

.nav-link {
  display: block;
  padding: 0.9rem 0;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.2s, padding-right 0.2s;
}

.nav-link:hover {
  color: var(--color-primary);
  padding-right: 0.5rem;
}

.nav-list li:nth-child(odd) .nav-link:hover {
  color: var(--color-tertiary);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.nav-overlay[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

/* السلة الجانبية */
.cart-overlay,
.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.cart-overlay[aria-hidden="false"],
.login-overlay[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 340px;
  max-width: 92vw;
  height: 100vh;
  background: var(--color-card);
  z-index: 1002;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
  transform: translateX(-100%);
  transition: transform var(--transition);
  display: flex;
  flex-direction: column;
}

.cart-drawer[aria-hidden="false"] {
  transform: translateX(0);
}

.cart-drawer-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-drawer-header h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.cart-close {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: background 0.2s, color 0.2s;
}

.cart-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.cart-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
}

.cart-empty {
  margin: 0;
  color: var(--color-text-muted);
  text-align: center;
  padding: 2rem 0;
}

.cart-items {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cart-item-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  display: block;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.2rem;
}

.cart-item-price {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.cart-qty-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--color-primary);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}

.cart-qty-btn:hover {
  background: var(--color-border);
  color: var(--color-primary-dark);
}

.cart-qty-num {
  min-width: 1.5rem;
  text-align: center;
  font-weight: 700;
}

.cart-item-line-total {
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.cart-drawer-footer {
  padding: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.cart-total {
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

.cart-footer-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cart-btn-pay {
  width: 100%;
}

/* إشعار وضع المنتج في السلة */
.toast-cart {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: var(--color-primary);
  color: #fff;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
  z-index: 9999;
}

.toast-cart[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* نافذة تسجيل الدخول */
.login-modal {
  position: fixed;
  inset: 0;
  z-index: 1002;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.login-modal[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.login-modal-inner {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.18);
  width: 100%;
  max-width: 400px;
  padding: 2rem;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition);
}

.login-modal[aria-hidden="false"] .login-modal-inner {
  transform: scale(1);
}

.login-close {
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted);
}

.login-modal .login-step h3 {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
}

.login-orders-email {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.login-orders-list {
  max-height: 220px;
  overflow-y: auto;
  margin-bottom: 0.5rem;
}

.login-hint {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.login-label {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.login-input {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
}

.login-code-hint {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--color-primary);
}

.card-price-note {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* المحتوى الرئيسي */
.main {
  flex: 1;
  padding: 3rem 0 4.5rem;
  position: relative;
  z-index: 1;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.section-desc {
  margin: 0 0 2.25rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.section-desc a {
  color: var(--color-tertiary);
  text-decoration: none;
  font-weight: 600;
}

.section-desc a:hover {
  color: var(--color-accent-soft);
  text-decoration: underline;
}

/* شبكة المنتجات */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  border-color: rgba(15, 118, 110, 0.25);
}

.card-wide {
  grid-column: 1 / -1;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: #fde68a;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  letter-spacing: 0.02em;
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-link:hover .card {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.card-link-wide {
  grid-column: 1 / -1;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.card-img-wrap {
  width: 100%;
  height: 180px;
  background: linear-gradient(145deg, #ecfdf5 0%, rgba(15, 118, 110, 0.08) 100%);
  border-radius: var(--radius-sm);
  margin-bottom: 1.35rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.card-img-wrap.no-img {
  background: var(--color-primary);
  opacity: 0.15;
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.5rem;
}

.card-cta {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 0.5rem;
  transition: color var(--transition);
}

.card-link:hover .card-cta {
  color: var(--color-tertiary);
}

.card-desc {
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
}

.card-price {
  margin: 0 0 0.75rem;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

.card-price .amount {
  font-size: 1.5rem;
}

/* تسعير البحث العلمي */
.price-tiers {
  margin-bottom: 0.75rem;
}

.card-price-label {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.tier-list {
  margin: 0 0 0.5rem;
  padding: 0 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.tier-list li {
  margin-bottom: 0.2rem;
}

.tier-list strong {
  color: var(--color-primary);
}

.research-options {
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.research-options label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.select-pages {
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-card);
  color: var(--color-text);
  min-width: 200px;
}

/* الأزرار */
.btn {
  display: inline-block;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.7rem 1.35rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  width: 100%;
  box-shadow: 0 4px 20px rgba(15, 118, 110, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #5eead4 0%, var(--color-primary) 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(15, 118, 110, 0.35);
}

.btn-primary:active {
  transform: translateY(0) scale(0.99);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: rgba(15, 118, 110, 0.08);
}

/* الفوتر */
.footer {
  background: var(--color-surface);
  color: var(--color-text);
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  padding: 2.5rem 1.25rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.footer-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 800;
}

.footer-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  opacity: 0.95;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s, padding-right 0.2s;
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-right: 4px;
}

.footer-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #22c55e;
  text-decoration: none;
  padding: 0.5rem 0;
  font-weight: 700;
  font-size: 1rem;
  transition: opacity 0.2s;
}

.footer-whatsapp:hover {
  opacity: 0.9;
}

.footer-whatsapp svg {
  flex-shrink: 0;
}

.footer-note {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  max-width: 260px;
}

.footer-note + .footer-note {
  margin-top: 0.35rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

.footer-copy {
  margin: 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem 1.25rem;
  }
}

/* تباعد بين الأقسام */
.section + .section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

/* تحسينات الجوال — هيكل أوضح وأسهل في الاستخدام */
@media (max-width: 768px) {
  .header {
    padding: 0.75rem 0;
  }

  .header-inner {
    padding: 0 0.5rem;
  }

  .logo,
  .logo-text {
    font-size: 1.35rem;
  }

  .tagline {
    font-size: 0.75rem;
    margin-top: 0.2rem;
  }

  .logo-img {
    height: 40px;
  }

  .main {
    padding: 1.75rem 0 3rem;
  }

  .section-title {
    font-size: 1.45rem;
    margin-bottom: 0.35rem;
  }

  .section-desc {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }

  .products {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .card {
    padding: 1.35rem;
  }

  .card-title {
    font-size: 1.15rem;
  }

  .card-desc {
    font-size: 0.9rem;
  }

  .card-img-wrap {
    height: 160px;
    margin-bottom: 1rem;
  }

  .section + .section {
    margin-top: 2.25rem;
    padding-top: 1.5rem;
  }

  .nav-link {
    padding: 1rem 0;
    font-size: 1.05rem;
  }
}

@media (max-width: 600px) {
  .logo,
  .logo-text {
    font-size: 1.35rem;
  }

  .header-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }

  .card-wide {
    max-width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem 1.25rem;
  }
}