/* ===== RESET & VARIABLES ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --blue-dark: #0a1f44;
  --blue-mid: #1a3c6e;
  --blue-accent: #2f80ed;
  --blue-light: #e8f0fe;
  --text: #1c1c1c;
  --white: #ffffff;
}
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
}

/* ===== BLACK TOP BAR ===== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #000000;
  color: #ffffff;
  padding: 8px 40px;
  font-size: 0.82rem;
}
.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.topbar a {
  color: #ffffff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.85;
  transition: opacity 0.2s, color 0.2s;
}
.topbar a:hover { opacity: 1; color: var(--blue-accent); }
.topbar-icon { width: 14px; height: 14px; flex-shrink: 0; }
.social-icon { width: 16px; height: 16px; }

/* ===== WHITE NAVBAR ===== */
.navbar {
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 75px;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-img {
  height: 50px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

/* Mobile toggle (hidden on desktop) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--blue-dark);
  border-radius: 2px;
}

/* Menu */
.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
  align-items: center;
  margin: 0;
  padding: 0;
}
.nav-links > li { position: relative; }
.nav-links a {
  color: var(--blue-dark);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0;
  display: block;
  transition: color 0.2s;
}
.nav-links > li > a {
  padding: 26px 0;
}
.nav-links a:hover,
.nav-links a.active { color: var(--blue-accent); }

.btn-nav {
  background: var(--blue-accent);
  color: #ffffff !important;
  padding: 10px 22px !important;
  border-radius: 6px;
  margin-top: 0 !important;
}
.btn-nav:hover { background: var(--blue-mid); color: #fff !important; }

/* Mega menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
  border-radius: 10px;
  padding: 30px;
  display: none;
  gap: 40px;
  min-width: 760px;
  border-top: 3px solid var(--blue-accent);
  z-index: 999;
}
.has-mega:hover .mega-menu { display: flex; }
.mega-column h4 {
  color: var(--blue-dark);
  margin-bottom: 10px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}
.mega-column a {
  color: #333;
  display: block;
  padding: 6px 0;
  font-size: 0.88rem;
  font-weight: 400;
}
.mega-column a:hover { color: var(--blue-accent); }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid));
  color: var(--white);
  padding: 100px 40px;
  text-align: center;
}
.hero h1 { font-size: 2.8rem; margin-bottom: 20px; max-width: 800px; margin-inline: auto; }
.hero p { font-size: 1.1rem; max-width: 600px; margin: 0 auto 30px; opacity: 0.9; }
.hero-buttons { display: flex; gap: 15px; justify-content: center; }
.btn-primary {
  background: var(--blue-accent);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 6px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}
.btn-secondary {
  background: transparent;
  border: 2px solid var(--white);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 6px;
  text-decoration: none;
}

/* ===== SECTIONS ===== */
.section { padding: 80px 40px; text-align: center; }
.alt-bg { background: var(--blue-light); }
.section-title { font-size: 2rem; color: var(--blue-dark); margin-bottom: 10px; }
.section-subtitle { color: #555; margin-bottom: 40px; }

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: 0 auto;
}
.service-card {
  background: var(--white);
  padding: 30px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  transition: transform 0.2s;
}
.service-card:hover { transform: translateY(-5px); }
.service-card .icon { font-size: 2rem; margin-bottom: 15px; }
.service-card h3 { color: var(--blue-mid); margin-bottom: 10px; }
.service-card p { color: #555; font-size: 0.9rem; }

/* Why choose us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}
.why-item .icon { font-size: 2.2rem; margin-bottom: 10px; }
.why-item h3 { color: var(--blue-dark); margin-bottom: 8px; }
.why-item p { color: #555; font-size: 0.9rem; }

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  max-width: 1000px;
  margin: 0 auto;
}
.testimonial-card {
  background: var(--white);
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  text-align: left;
}
.testimonial-card p { font-style: italic; color: #444; margin-bottom: 15px; }
.testimonial-card h4 { color: var(--blue-mid); font-size: 0.9rem; }

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 500px;
  margin: 0 auto;
}
.contact-form input,
.contact-form textarea {
  padding: 12px 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  background: var(--blue-dark);
  color: var(--white);
  text-align: center;
  padding: 30px;
  font-size: 0.85rem;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 50px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}
.about-text p { margin-bottom: 15px; color: #444; }
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat {
  background: var(--white);
  padding: 25px 15px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}
.stat h3 { color: var(--blue-accent); font-size: 1.8rem; margin-bottom: 5px; }
.stat p { color: #555; font-size: 0.85rem; }

/* ===== SOLUTIONS ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}
.solution-card {
  background: var(--white);
  padding: 30px 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  transition: transform 0.2s;
}
.solution-card:hover { transform: translateY(-5px); }
.solution-card .icon { font-size: 2rem; margin-bottom: 15px; }
.solution-card h3 { color: var(--blue-mid); margin-bottom: 10px; }
.solution-card p { color: #555; font-size: 0.9rem; margin-bottom: 15px; }
.solution-card ul { list-style: none; padding: 0; }
.solution-card ul li {
  font-size: 0.85rem;
  color: #444;
  padding: 5px 0 5px 20px;
  position: relative;
}
.solution-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue-accent);
  font-weight: 700;
}

/* ===== OEM ===== */
.oem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto 30px;
}

.oem-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-light);
  padding: 30px 15px;
  border-radius: 10px;
  font-weight: 700;
  color: var(--blue-dark);
  font-size: 1.1rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}

.oem-logo:hover {
  background: var(--blue-accent);
  color: #ffffff;
  transform: translateY(-3px);
}

.oem-note { color: #555; font-size: 0.9rem; max-width: 700px; margin: 0 auto; }

/* ===== CUSTOMERS ===== */
.customer-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto 50px;
}
.customer-logo {
  background: #fff;
  padding: 25px 15px;
  border-radius: 10px;
  font-weight: 600;
  color: #777;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.sub-heading {
  font-size: 1.4rem;
  color: var(--blue-dark);
  margin-bottom: 25px;
  text-align: center;
}

/* ===== EVENTS ===== */
.events-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.event-card {
  display: flex;
  gap: 25px;
  background: var(--white);
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  text-align: left;
  align-items: flex-start;
}
.event-date {
  background: var(--blue-accent);
  color: #fff;
  padding: 10px 15px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
}
.event-info h3 { color: var(--blue-dark); margin-bottom: 6px; }
.event-info p { color: #555; font-size: 0.9rem; }

/* ===== CONTACT ===== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}
.contact-info h3 { color: var(--blue-dark); margin-bottom: 20px; }
.contact-info p { margin-bottom: 12px; color: #444; font-size: 0.95rem; }
.contact-info a { color: var(--blue-accent); text-decoration: none; }
.contact-info a:hover { text-decoration: underline; }

/* ===== RESPONSIVE ADDITIONS ===== */
@media (max-width: 900px) {
  .about-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .event-card { flex-direction: column; gap: 12px; }
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    gap: 6px;
    padding: 10px 15px;
    text-align: center;
  }
  .topbar-left, .topbar-right {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .nav-container {
    height: auto;
    padding: 15px 20px;
    flex-wrap: wrap;
  }
  .logo-img { height: 40px; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding-top: 15px;
    border-top: 1px solid #eee;
  }
  .nav-links.open { display: flex; }
  .nav-links > li { width: 100%; }
  .nav-links > li > a { padding: 12px 0; border-bottom: 1px solid #f2f2f2; }
  .btn-nav {
    display: inline-block;
    margin: 10px 0 !important;
    text-align: center;
    width: 100%;
  }

  .mega-menu {
    position: static;
    transform: none;
    min-width: auto;
    flex-direction: column;
    gap: 20px;
    box-shadow: none;
    border-top: none;
    padding: 10px 0 10px 15px;
  }
  .has-mega:hover .mega-menu { display: none; }
  .has-mega.open .mega-menu { display: flex; }
}


/* Page banner for inner pages */
.page-banner {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid));
  color: var(--white);
  padding: 70px 40px;
  text-align: center;
}
.page-banner h1 { font-size: 2.4rem; margin-bottom: 10px; }
.page-banner p { opacity: 0.9; font-size: 1.05rem; }

/* Learn-more link */
.link-arrow {
  display: inline-block;
  margin-top: 12px;
  color: var(--blue-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
}
.link-arrow:hover { text-decoration: underline; }

/* About page — heading alignment inside grid */
.about-text .section-title { margin-bottom: 15px; }