@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Montserrat:wght@600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #27AE60;
  --primary-dark: #0E6655;
  --primary-light: #2ECC71;
  --accent: #74B9FF;
  --cta: #F39C12;
  --cta-hover: #E67E22;
  --bg: #FFFFFF;
  --bg-light: #F0FAF4;
  --bg-section: #F8FDF9;
  --text: #1A3C34;
  --text-light: #5D6D7E;
  --text-muted: #95A5A6;
  --border: #E8F5E9;
  --shadow: 0 2px 20px rgba(39, 174, 96, 0.08);
  --shadow-lg: 0 8px 40px rgba(39, 174, 96, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

[dir="rtl"] body { font-family: 'Inter', 'Segoe UI', Tahoma, system-ui, sans-serif; }

h1, h2, h3, h4 { font-family: 'Montserrat', 'Inter', sans-serif; line-height: 1.3; }

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ========== HEADER ========== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  height: 72px;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 42px; width: 42px; border-radius: 8px; }
.logo-text { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.3rem; color: var(--primary-dark); letter-spacing: -0.5px; }
.logo-stack { display: flex; flex-direction: column; justify-content: center; line-height: 1.15; }
.logo-sub { font-family: 'Inter', sans-serif; font-size: 0.62rem; font-weight: 600; letter-spacing: 2.4px; text-transform: uppercase; color: var(--text-muted); white-space: nowrap; }
.footer-brand .logo-sub { color: rgba(255, 255, 255, 0.65); }

.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--text);
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--primary); transform: scaleX(0);
  transition: transform var(--transition); border-radius: 1px;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 16px; }

.lang-switcher { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px;
  background: var(--bg-light); cursor: pointer; font-size: 0.85rem;
  font-weight: 500; color: var(--text); transition: all var(--transition);
}
.lang-btn:hover { border-color: var(--primary); background: white; }
.lang-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: white; border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); overflow: hidden; display: none; min-width: 140px; z-index: 100;
}
[dir="rtl"] .lang-dropdown { right: auto; left: 0; }
.lang-dropdown.open { display: block; }
.lang-option {
  display: block; width: 100%; padding: 10px 16px; border: none;
  background: none; cursor: pointer; text-align: start; font-size: 0.9rem;
  color: var(--text); transition: background var(--transition);
}
.lang-option:hover { background: var(--bg-light); }
.lang-option.active { color: var(--primary); font-weight: 600; }

.cta-header {
  padding: 8px 20px; background: var(--cta); color: white;
  border: none; border-radius: 20px; font-weight: 600; font-size: 0.85rem;
  cursor: pointer; transition: all var(--transition);
}
.cta-header:hover { background: var(--cta-hover); transform: translateY(-1px); }

.mobile-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; position: relative;
}
.mobile-toggle span {
  display: block; width: 22px; height: 2px; background: var(--text);
  position: absolute; left: 5px; transition: all var(--transition);
}
.mobile-toggle span:nth-child(1) { top: 9px; }
.mobile-toggle span:nth-child(2) { top: 15px; }
.mobile-toggle span:nth-child(3) { top: 21px; }
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 15px; }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 15px; }

/* ========== HERO ========== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: 72px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.92) 0%, rgba(240,250,244,0.85) 40%, rgba(39,174,96,0.15) 100%);
}
.hero-content {
  position: relative; z-index: 1; max-width: var(--max-width);
  margin: 0 auto; padding: 60px 24px; display: grid;
  grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: rgba(39, 174, 96, 0.1);
  border: 1px solid rgba(39, 174, 96, 0.2); border-radius: 20px;
  font-size: 0.85rem; font-weight: 500; color: var(--primary-dark);
  margin-bottom: 20px;
}
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--primary); border-radius: 50%; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; color: var(--primary-dark); margin-bottom: 20px; }
.hero h1 span { color: var(--primary); }
.hero-desc { font-size: 1.15rem; color: var(--text-light); margin-bottom: 36px; max-width: 520px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--cta); color: white;
  border: none; border-radius: 28px; font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: all var(--transition); box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}
.btn-primary:hover { background: var(--cta-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4); color: white; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: white; color: var(--primary-dark);
  border: 2px solid var(--primary); border-radius: 28px; font-weight: 600;
  font-size: 1rem; cursor: pointer; transition: all var(--transition);
}
.btn-secondary:hover { background: var(--primary); color: white; }

.hero-visual { position: relative; }
.hero-visual img {
  border-radius: 20px; box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3; object-fit: cover; width: 100%;
}
.hero-stats {
  position: absolute; bottom: -30px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 2px; background: white; border-radius: 16px;
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.stat-item { padding: 16px 28px; text-align: center; }
.stat-num { font-family: 'Montserrat', sans-serif; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* ========== SECTIONS ========== */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-light); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; color: var(--primary-dark); margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--text-light); max-width: 600px; margin: 0 auto; }
.section-label {
  display: inline-block; font-size: 0.8rem; font-weight: 600;
  color: var(--primary); text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 12px;
}

/* ========== SPECS PARAMS ========== */
.specs-params {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.param-card {
  text-align: center; padding: 36px 20px; background: white;
  border-radius: var(--radius); border: 1px solid var(--border);
  transition: all var(--transition);
}
.param-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-3px); }
.param-icon { font-size: 2rem; margin-bottom: 14px; }
.param-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
.param-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }

/* ========== PRODUCTS ========== */
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.product-card {
  background: white; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); transition: all var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.product-img {
  height: 180px; overflow: hidden; position: relative;
}
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-tag {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 12px; background: var(--primary); color: white;
  border-radius: 12px; font-size: 0.75rem; font-weight: 600;
}
[dir="rtl"] .product-tag { left: auto; right: 12px; }
.product-info { padding: 20px; }
.product-info h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.product-info p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 16px; }
.product-specs { display: flex; flex-wrap: wrap; gap: 6px; }
.spec-tag {
  padding: 4px 10px; background: var(--bg-light); border-radius: 6px;
  font-size: 0.75rem; color: var(--primary-dark); font-weight: 500;
}
.product-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 12px; font-size: 0.9rem; font-weight: 600; color: var(--primary);
}
.product-link:hover { gap: 10px; }

/* ========== WHY US ========== */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}
.feature-card {
  text-align: center; padding: 40px 24px; background: white;
  border-radius: var(--radius); border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.feature-icon {
  width: 64px; height: 64px; margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-light); border-radius: 16px; font-size: 1.8rem;
}
.feature-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-light); }

/* ========== ABOUT ========== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.about-content h2 { font-size: 2rem; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; }
.about-content p { color: var(--text-light); margin-bottom: 16px; font-size: 1.05rem; }
.about-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.highlight-item {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; background: var(--bg-light); border-radius: var(--radius-sm);
}
.highlight-icon { font-size: 1.3rem; }
.highlight-text { font-size: 0.9rem; font-weight: 500; }

/* ========== OEM ========== */
.oem-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.oem-steps { display: flex; flex-direction: column; gap: 20px; }
.oem-step {
  display: flex; gap: 16px; padding: 20px; background: white;
  border-radius: var(--radius); border: 1px solid var(--border);
  transition: all var(--transition);
}
.oem-step:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.step-num {
  flex-shrink: 0; width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary); color: white; border-radius: 10px;
  font-weight: 700; font-size: 1.1rem;
}
.step-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.step-content p { font-size: 0.85rem; color: var(--text-light); }
.oem-visual { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.oem-visual img { width: 100%; aspect-ratio: 1; object-fit: cover; }

/* ========== FAQ ========== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 12px; overflow: hidden; transition: all var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; cursor: pointer; background: white;
  font-weight: 600; font-size: 1rem; gap: 16px;
}
.faq-toggle {
  flex-shrink: 0; width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-light); border-radius: 50%; font-size: 1.2rem;
  color: var(--primary); transition: transform var(--transition);
}
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: all var(--transition); }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
.faq-answer p { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }

/* ========== CONTACT ========== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text); }
.form-group input, .form-group textarea, .form-group select {
  padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.95rem; font-family: inherit; transition: border-color var(--transition);
  background: white;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.btn-submit {
  padding: 14px 32px; background: var(--primary); color: white;
  border: none; border-radius: 28px; font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: all var(--transition); align-self: flex-start;
}
.btn-submit:hover { background: var(--primary-dark); transform: translateY(-2px); }

.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-card {
  display: flex; gap: 16px; padding: 24px; background: var(--bg-light);
  border-radius: var(--radius); border: 1px solid var(--border);
}
.contact-icon {
  flex-shrink: 0; width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: white; border-radius: 12px; font-size: 1.3rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.contact-detail h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.contact-detail p { font-size: 0.9rem; color: var(--text-light); }

/* ========== FOOTER ========== */
.footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.8);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .logo-text { color: white; font-size: 1.4rem; margin-bottom: 2px; display: block; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; opacity: 0.8; }
.footer h4 { color: white; font-size: 0.95rem; margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-links a:hover { color: white; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px; text-align: center; font-size: 0.85rem; opacity: 0.6;
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 56px; height: 56px; background: #25D366;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition); cursor: pointer;
  animation: pulse-wa 2s infinite;
}
[dir="rtl"] .whatsapp-float { right: auto; left: 24px; }
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5); }
.whatsapp-float svg { width: 28px; height: 28px; fill: white; }

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ========== MOBILE ========== */
@media (max-width: 968px) {
  .nav-links { display: none; }
  .mobile-toggle { display: block; }
  .cta-header { display: none; }

  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 72px; left: 0; right: 0; background: white;
    padding: 24px; gap: 20px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }

  .hero-content { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-desc { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-stats { position: relative; bottom: 0; left: 0; transform: none; margin-top: 30px; justify-content: center; }

  .about-grid, .oem-content, .contact-grid { grid-template-columns: 1fr; }
  .specs-params { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .section { padding: 60px 0; }
  .hero { min-height: auto; padding-top: 100px; padding-bottom: 40px; }
  .hero-stats { flex-direction: column; }
  .stat-item { padding: 10px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-highlights { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .specs-params { grid-template-columns: 1fr; }
}

/* ========== ANIMATIONS ========== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }