:root {
  --primary: #00bcd4;
  --dark: #0d0d0d;
  --light: #f0f0f0;
  --accent: #1a1a1a;
}

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

body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--dark);
  color: var(--light);
  scroll-behavior: smooth;
  line-height: 1.6;
}

nav {
  background-color: #111;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.6);
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav ul li a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav ul li a:hover,
nav ul li a[aria-current="page"] {
  color: var(--primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger div {
  width: 25px;
  height: 3px;
  background: #fff;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  nav ul {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: #111;
    position: absolute;
    top: 60px;
    left: 0;
    padding: 1rem;
  }

  nav ul.show {
    display: flex;
  }

  nav ul li {
    margin: 0.5rem 0;
  }
}

.video-hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.video-hero img {
  width: 100%;
  height: 100vh;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.video-overlay h1 {
  font-size: 3.5rem;
  color: var(--primary);
  text-shadow: 0 0 10px #000;
  animation: fadeIn 2s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(1.1); }
  to { opacity: 1; transform: scale(1); }
}

.container {
  width: 100%;
  padding: 3rem 4rem;
  margin: 0 auto;
  max-width: none;
}

@media (max-width: 1024px) {
  .container {
    padding: 3rem 2rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 2rem 1.5rem;
  }
}

.section {
  margin-bottom: 4rem;
}

.section h2 {
  font-size: 2.8rem;
  margin-bottom: 2rem;
  color: var(--primary);
  text-align: center;
}

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}

@media (max-width: 1024px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features {
    grid-template-columns: 1fr;
  }
}

.feature {
  background-color: var(--accent);
  padding: 2.5rem;
  border-radius: 12px;
  transition: 0.3s ease;
  box-shadow: 0 0 15px rgba(0,188,212,0.15);
  font-size: 1.05rem;
}

.feature:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 30px rgba(0,188,212,0.4);
}

.feature h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.feature p {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.feature small {
  color: #aaa;
}
.feature a {
  text-decoration: none;
}

.button {
  background-color: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1.1rem;
  border-radius: 25px;
  text-decoration: none;
  transition: background-color 0.3s;
  display: inline-block;
  margin: 2rem auto 0;
  text-align: center;
  cursor: pointer;
}

.button:hover {
  background-color: #0097a7;
}

.cta-form {
  max-width: 600px;
  margin: 2rem auto;
  text-align: center;
}

.cta-form input,
.cta-form textarea {
  width: 100%;
  padding: 0.85rem;
  margin: 0.5rem 0;
  border: none;
  border-radius: 8px;
  background-color: #222;
  color: #fff;
  font-size: 1rem;
}

.cta-form input::placeholder,
.cta-form textarea::placeholder {
  color: #999;
}

footer {
  background-color: #111;
  color: #aaa;
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.9rem;
}

footer .contact-info {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--light);
}