/* ===========================================
   Marz Technology & Trading — Corporate Style
   Dark Blue & White — Desktop-First Layout
   =========================================== */
:root {
  --primary: #0a1628;
  --primary-light: #132244;
  --primary-medium: #1a3a6b;
  --accent: #1e88e5;
  --accent-light: #64b5f6;
  --accent-dark: #1565c0;
  --white: #ffffff;
  --off-white: #f8f9fc;
  --gray-100: #f0f2f5;
  --gray-200: #e0e3e8;
  --gray-400: #9ea3ae;
  --gray-600: #6b7280;
  --gray-800: #374151;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
  --radius: 12px;
  --transition: .3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-dark); line-height: 1.7; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { font-family: 'Plus Jakarta Sans', 'Inter', sans-serif; font-weight: 700; line-height: 1.2; }
.section-tag {
  display: inline-block; font-size: .8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px; color: var(--accent); margin-bottom: 12px;
}
.section-tag-light { color: var(--accent-light); }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; color: var(--primary); }
.section-title-light { color: var(--white); }
.section-text {
  font-size: 1.05rem; color: var(--text-light);
  max-width: 720px; margin: 0 auto 40px; line-height: 1.8;
}
.section-text-light { color: rgba(255,255,255,.85); }

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,22,40,.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: var(--transition);
}
.header.scrolled {
  background: rgba(10,22,40,.98);
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.3rem; color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.logo:hover { color: var(--white); }
.logo span { color: var(--accent); }
.nav-list { display: flex; list-style: none; gap: 32px; }
.nav-link {
  color: rgba(255,255,255,.75); font-size: .9rem; font-weight: 500;
  position: relative; padding: 4px 0;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--accent); transition: var(--transition);
}
.nav-link:hover { color: var(--white); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--white); }
.header-cta { display: flex; align-items: center; gap: 16px; }

/* ===== MOBILE MENU TOGGLE ===== */
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.menu-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px; margin: 5px 0;
  transition: var(--transition);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 8px; font-size: .9rem; font-weight: 600;
  border: none; cursor: pointer; transition: var(--transition); text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover {
  background: var(--accent-dark); color: var(--white);
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,136,229,.35);
}
.btn-outline { border: 2px solid rgba(255,255,255,.3); color: var(--white); background: transparent; }
.btn-outline:hover { border-color: var(--white); color: var(--white); background: rgba(255,255,255,.08); }
.btn-outline-dark { border: 2px solid var(--primary); color: var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: var(--white); }
.btn-sm { padding: 8px 20px; font-size: .85rem; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden; padding: 120px 0 80px;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  padding: 6px 16px; border-radius: 100px;
  font-size: .82rem; color: var(--accent-light); margin-bottom: 24px;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); display: inline-block;
}
.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem); color: var(--white);
  margin-bottom: 20px; letter-spacing: -.02em;
}
.hero-title span { color: var(--accent); }
.hero-text {
  font-size: 1.1rem; color: rgba(255,255,255,.7);
  max-width: 600px; margin-bottom: 32px; line-height: 1.8;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.hero-stat-value {
  display: block; font-size: 2rem; font-weight: 800; color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.hero-stat-label {
  font-size: .85rem; color: rgba(255,255,255,.55);
}

/* ===== SECTIONS ===== */
section { padding: 80px 0; }
.section-light { background: var(--off-white); }
.section-white { background: var(--white); }
.section-dark { background: linear-gradient(135deg, var(--primary) 0%, #0d1f3c 100%); color: var(--white); }
.text-center { text-align: center; }

/* ===== SERVICES GRID (4 cols desktop) ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-top: 40px;
}
.service-card {
  background: var(--white); border-radius: var(--radius); padding: 32px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent);
}
.service-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(30,136,229,.1); display: flex;
  align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--accent); margin-bottom: 20px;
}
.service-card h3 { font-size: 1.15rem; color: var(--primary); margin-bottom: 12px; }
.service-card p { font-size: .92rem; color: var(--text-light); line-height: 1.7; }
.service-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; font-weight: 600; font-size: .85rem; color: var(--accent);
}
.service-link i { font-size: .75rem; transition: var(--transition); }
.service-link:hover i { transform: translateX(4px); }

/* ===== PAGE HERO ===== */
.page-hero {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #0d1f3c 100%);
  text-align: center;
}
.page-hero-title { font-size: clamp(2rem, 4vw, 3rem); color: var(--white); margin-bottom: 16px; }
.page-hero-text {
  font-size: 1.05rem; color: rgba(255,255,255,.7);
  max-width: 640px; margin: 0 auto;
}

/* ===== ABOUT SECTION (2 columns) ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 2rem; margin-bottom: 24px; }
.about-text p { margin-bottom: 20px; color: var(--text-light); }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.about-stat {
  text-align: center; padding: 24px;
  background: var(--off-white); border-radius: var(--radius);
}
.about-stat-value {
  font-size: 2.2rem; font-weight: 800;
  color: var(--accent); font-family: 'Plus Jakarta Sans', sans-serif;
}
.about-stat-label { font-size: .85rem; color: var(--text-light); margin-top: 4px; }
.about-image { border-radius: var(--radius); height: 400px; }

/* ===== VALUES ===== */
.values-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 24px; }
.value-card { text-align: center; padding: 32px 20px; }
.value-card .service-icon { margin: 0 auto 16px; }
.value-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.value-card p { font-size: .9rem; color: var(--text-light); }

/* ===== AI SECTION ===== */
.ai-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 24px; }
.ai-card {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius); padding: 32px; transition: var(--transition);
}
.ai-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.ai-card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(30,136,229,.15); display: flex; align-items: center;
  justify-content: center; font-size: 1.3rem;
  color: var(--accent-light); margin-bottom: 20px;
}
.ai-card h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 10px; }
.ai-card p { font-size: .9rem; color: rgba(255,255,255,.7); line-height: 1.7; }

/* ===== DETAILED SERVICES ===== */
.service-detail { padding: 60px 0; border-bottom: 1px solid var(--gray-200); }
.service-detail:last-child { border-bottom: none; }
.service-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.service-detail-content h2 { font-size: 1.6rem; color: var(--primary); margin-bottom: 16px; }
.service-detail-content p { color: var(--text-light); margin-bottom: 16px; }
.service-detail-features { list-style: none; }
.service-detail-features li {
  display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 10px; font-size: .92rem; color: var(--text-dark);
}
.service-detail-features li i { color: var(--accent); margin-top: 3px; flex-shrink: 0; }

/* ===== CONTACT GRID (2 cols: info left, form right) ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
}
.contact-info h3 { font-size: 1.3rem; margin-bottom: 8px; }
.contact-details { list-style: none; margin-top: 24px; }
.contact-details li { display: flex; gap: 16px; margin-bottom: 20px; }
.contact-details li i { width: 20px; color: var(--accent); font-size: 1.1rem; margin-top: 4px; }
.contact-details li div { font-size: .92rem; color: var(--text-light); }
.contact-details li strong {
  display: block; color: var(--text-dark);
  font-weight: 600; margin-bottom: 2px;
}
.contact-form {
  background: var(--white); padding: 40px;
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  position: relative;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: .85rem;
  font-weight: 600; color: var(--text-dark); margin-bottom: 6px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--gray-200); border-radius: 8px;
  font-size: .92rem; font-family: inherit;
  transition: var(--transition); background: var(--off-white);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(30,136,229,.1);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* ===== STATS SECTION (4 columns) ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  text-align: center; padding: 32px 20px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.stat-card-value {
  font-size: 2.5rem; font-weight: 800; color: var(--white);
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.stat-card-label {
  font-size: .9rem; color: rgba(255,255,255,.65);
  margin-top: 8px;
}

/* ===== PRODUCTS ===== */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-card {
  background: var(--white); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200);
  text-align: center; transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-card .service-icon { margin: 0 auto 16px; }
.product-card h3 { font-size: 1rem; margin-bottom: 8px; }
.product-card p { font-size: .85rem; color: var(--text-light); margin-bottom: 12px; }

/* ===== CTA ===== */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
}
.cta-title { font-size: 2rem; color: var(--white); margin-bottom: 16px; }
.cta-text {
  font-size: 1.05rem; color: rgba(255,255,255,.85);
  max-width: 600px; margin: 0 auto 32px;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-buttons .btn-outline { border-color: rgba(255,255,255,.4); }
.cta-buttons .btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,.1); }
.cta-section .btn-primary { background: var(--white); color: var(--accent-dark); }
.cta-section .btn-primary:hover {
  background: var(--off-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  padding: 16px 24px; border-radius: 8px; font-size: .9rem;
  font-weight: 500; color: var(--white);
  transform: translateY(100px); opacity: 0;
  transition: all .4s ease; max-width: 400px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { background: #10b981; }
.toast-error { background: #ef4444; }
.toast i { margin-right: 8px; }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed; bottom: 24px; left: 24px; z-index: 9999;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); color: var(--white);
  border: none; cursor: pointer; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: all .3s ease; box-shadow: 0 4px 12px rgba(30,136,229,.3);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent-dark); transform: translateY(-3px); }

/* ===== ANIMATIONS ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all .6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== FOOTER GRID (4 columns) ===== */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: .9rem; line-height: 1.8; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.06); display: flex;
  align-items: center; justify-content: center;
  color: rgba(255,255,255,.6); font-size: 1rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: var(--white); }
.footer h4 { color: var(--white); font-size: 1rem; margin-bottom: 20px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { color: rgba(255,255,255,.6); font-size: .88rem; }
.footer ul li a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0; text-align: center;
  font-size: .85rem; color: rgba(255,255,255,.4);
}

/* PRICING */
.pricing-note { max-width: 700px; margin: 0 auto; text-align: center; }
.pricing-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; text-align: left; max-width: 500px; margin-left: auto; margin-right: auto; }
.pricing-feature { display: flex; align-items: center; gap: 10px; font-size: .9rem; }
.pricing-feature i { color: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .about-grid, .service-detail-grid, .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-list { display: none; }
  .menu-toggle { display: flex !important; flex-direction: column; gap: 0px; }
  .nav-open .nav-list {
    display: flex; position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; background: var(--primary);
    padding: 24px; gap: 16px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .header-cta { display: none; }
}

@media (max-width: 576px) {
  .services-grid, .ai-grid, .products-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .pricing-features { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr !important; }
}