/* ZEUSTECH — Tesla-Style CSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --gold: #D4AF37;
  --glow: #FFD700;
  --black: #000000;
  --white: #FFFFFF;
  --light-bg: #f8f9fa;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--black);
  overflow-x: hidden;
}

/* HEADER — Tesla Style: Logo Left, Nav Right */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 5%;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header .logo img {
  height: 40px;
  display: block;
}

.main-nav a {
  color: var(--white);
  text-decoration: none;
  margin-left: 25px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.5px;
  transition: opacity 0.3s ease;
}

.main-nav a:hover {
  opacity: 0.8;
}

.hamburger {
  color: white;
  font-size: 24px;
  display: none;
  cursor: pointer;
  z-index: 1100;
}

/* MOBILE HAMBURGER MENU */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1500;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-content a {
  display: block;
  color: white;
  text-decoration: none;
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  margin: 15px 0;
  text-align: center;
  transition: color 0.2s ease;
}

.mobile-menu-content a:hover {
  color: var(--gold);
}

/* SECTIONS */
.section {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10%;
  position: relative;
  color: var(--white);
}

.section .bg,
.section video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

.overlay {
  text-align: center;
  max-width: 800px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 10px;
}

.overlay.dark {
  background: rgba(0, 0, 0, 0.7);
}

.overlay.story-content {
  text-align: left;
  max-width: 900px;
  background: rgba(0, 0, 0, 0.85);
  padding: 30px;
  border-radius: 15px;
}

.section h1,
.section h2,
.section h3,
.section h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  margin-bottom: 15px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

#hero h1 {
  font-size: 4rem;
}

.section h2 {
  font-size: 2.8rem;
  color: var(--gold);
}

.section h3 {
  font-size: 1.8rem;
  margin-top: 25px;
}

.section h4 {
  font-size: 1.4rem;
  margin-top: 20px;
  color: var(--glow);
}

.section p {
  font-size: 1.3rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.section ul {
  text-align: left;
  margin: 20px 0 30px 0;
  padding-left: 20px;
}

.section ul li {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.6;
}

.insight {
  font-style: italic;
  color: var(--glow);
  margin-top: 10px;
  font-size: 1.1rem;
}

.cta {
  display: inline-block;
  padding: 12px 30px;
  background: var(--gold);
  color: var(--black);
  text-decoration: none;
  border-radius: 30px;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  margin-top: 20px;
}

.cta:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

.cta.primary {
  background: var(--glow);
}

/* LOGO ICONS IN SECTIONS */
.section-logo {
  width: 200px;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* INNOVATIONS GRID */
.innovations-grid {
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  background: var(--black);
  color: var(--white);
}

.innovations-grid .section-title {
  font-size: 3rem;
  margin-bottom: 50px;
  text-align: center;
  color: var(--gold);
}

.innovations-grid .card {
  width: 100%;
  max-width: 900px;
  margin: 30px 0;
  padding: 30px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.card img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 15px;
}

.card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.8rem;
  color: var(--gold);
}

.card .lock {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.5rem;
  color: var(--gold);
}

.card .cta.small {
  padding: 8px 20px;
  font-size: 1rem;
}

/* TEAM SECTION */
.team-content {
  max-width: 900px;
}

.team-member {
  margin-top: 40px;
  text-align: center;
}

.team-member img {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--gold);
  margin-bottom: 15px;
}

.team-member.text-only h3 {
  margin-top: 30px;
  color: var(--gold);
}

.team-member.text-only p {
  margin-top: 8px;
}

/* FOOTER */
.footer {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 30px 20px;
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer .social a {
  color: var(--gold);
  text-decoration: none;
  margin: 0 10px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .header {
    padding: 15px 5%;
  }

  .main-nav {
    display: none;
  }

  .hamburger {
    display: block;
  }

  #hero h1 {
    font-size: 2.5rem;
  }

  .section h2 {
    font-size: 2rem;
  }

  .section p,
  .section ul li {
    font-size: 1.1rem;
  }

  .innovations-grid .card {
    padding: 20px;
  }

  .section-logo {
    width: 150px;
  }

  .overlay.story-content {
    padding: 20px;
  }

  /* Ensure mobile menu stays on top */
  .mobile-menu {
    z-index: 2000;
  }
}