/* ======================== */
/* GLOBAL BASE */
/* ======================== */
* {
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height:1.6;
  background:#f9fbfd;
  color:#333;
}

.container {
  width:90%;
  max-width:1200px;
  margin:0 auto;
}

/* ======================== */
/* BUTTONS */
/* ======================== */
.btn {
  padding:12px 28px;
  border-radius:6px;
  font-weight:600;
  text-decoration:none;
  transition:0.3s;
  display:inline-block;
}

.btn:hover {
  transform:translateY(-3px);
}

/* ======================== */
/* NAVIGATION */
/* ======================== */
.nav-section {
  background:#fff;
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 2px 10px rgba(0,0,0,0.05);
}

.nav-container {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1rem 0;
}

.logo {
  font-size:1.7rem;
  font-weight:700;
  color:#1a73e8;
}

.nav-list {
  list-style:none;
  display:flex;
  gap:1.8rem;
}

.nav-list li a {
  text-decoration:none;
  font-weight:500;
  color:#555;
}

.nav-list li a:hover {
  color:#1a73e8;
}

.nav-btn {
  background:#1a73e8;
  color:#fff;
  font-weight:600;
  padding:10px 22px;
  border-radius:6px;
}

.nav-btn:hover {
  background:#155ab6;
}

/* ======================== */
/* HERO SECTION */
/* ======================== */
.hero-section {
  height:90vh;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:2rem;
}

.hero-bg {
  background:url('https://images.unsplash.com/photo-1581092335756-43875c5bf380?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  filter:brightness(0.6);
  position:absolute;
  inset:0;
  z-index:-1;
}

.hero-content h1 {
  font-size:2.8rem;
  color:#fff;
  margin-bottom:1rem;
  text-shadow:2px 2px 8px rgba(0,0,0,0.5);
}

.hero-content p {
  font-size:1.2rem;
  color:#f1f1f1;
  margin-bottom:2rem;
  text-shadow:1px 1px 6px rgba(0,0,0,0.5);
}

.hero-btn {
  background:#ffd700;
  color:#1a73e8;
  font-weight:600;
  padding:14px 32px;
  border-radius:6px;
  box-shadow:0 4px 12px rgba(0,0,0,0.3);
}

.hero-btn:hover {
  background:#e6b800;
  color:#fff;
}

/* ======================== */
/* SECTION TITLES */
/* ======================== */
.section-title {
  text-align:center;
  font-size:2.2rem;
  color:#1a73e8;
  margin-bottom:2rem;
}

/* ======================== */
/* FEATURES */
/* ======================== */
.features-section {
  padding:4rem 0;
}

.features-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:2rem;
}

.feature-card {
  background:#fff;
  border-radius:8px;
  padding:1.8rem;
  box-shadow:0 6px 20px rgba(0,0,0,0.08);
  transition:0.3s;
}

.feature-card:hover {
  transform:translateY(-5px);
}

.feature-card h3 {
  margin-bottom:10px;
  color:#155ab6;
}

/* ======================== */
/* BENEFITS */
/* ======================== */
.benefits-section {
  background:#eef4fc;
  padding:4rem 0;
}

.benefits-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:2rem;
}

.benefit-card {
  background:#fff;
  border-radius:8px;
  padding:1.8rem;
  box-shadow:0 6px 20px rgba(0,0,0,0.08);
  transition:0.3s;
}

.benefit-card:hover {
  transform:translateY(-5px);
}

.benefit-card h3 {
  color:#1a73e8;
  margin-bottom:10px;
}

/* ======================== */
/* TESTIMONIALS */
/* ======================== */
.testimonials-section {
  padding:4rem 0;
}

.testimonials-slider {
  display:flex;
  gap:1.8rem;
  overflow-x:auto;
  scroll-behavior:smooth;
  padding-bottom:1rem;
}

.testimonial-card {
  background:#fff;
  padding:2rem;
  border-radius:10px;
  box-shadow:0 6px 20px rgba(0,0,0,0.08);
  min-width:300px;
}

.testimonial-card p {
  font-style:italic;
  margin-bottom:10px;
  color:#555;
}

.testimonial-card span {
  font-weight:600;
  color:#1a73e8;
  text-shadow:1px 1px 2px rgba(0,0,0,0.3);
}

/* ======================== */
/* CONTACT */
/* ======================== */
.contact-section {
  padding:4rem 0;
}

.contact-form {
  display:flex;
  flex-direction:column;
  gap:1rem;
  max-width:600px;
  margin:0 auto;
}

.contact-form input,
.contact-form textarea {
  padding:12px;
  border:2px solid #ccc;
  border-radius:6px;
  font-size:1rem;
}

.contact-btn {
  background:#1a73e8;
  color:#fff;
  margin-top:1rem;
  font-weight:600;
  padding:12px 28px;
  border-radius:6px;
  box-shadow:0 4px 12px rgba(0,0,0,0.2);
}

.contact-btn:hover {
  background:#155ab6;
}

/* ======================== */
/* FOOTER */
/* ======================== */
.footer-section {
  background:#1a73e8;
  color:#fff;
  text-align:center;
  padding:1.5rem 0;
  font-size:0.95rem;
  text-shadow:1px 1px 4px rgba(0,0,0,0.5);
}

/* ======================== */
/* SENSOR INTELLIGENCE SECTION */
/* ======================== */
.sensor-section {
  background: linear-gradient(135deg, #1765c1 0%, #0f3d91 100%);
  color: #ffffff;
  padding: 5rem 2rem;
  text-align: center;
  border-radius: 14px;
  margin: 3rem auto;
  max-width: 1000px;