/* ================= Google Font ================= */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #f9f9f9;
  color: #333;
  scroll-behavior: smooth;
}

/* ================= Header ================= */
header {
  position: fixed;
  top: 0;
  width: 100%;
  height: 160px;
  background: linear-gradient(90deg, #2f3fa0, #004aad);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  z-index: 1000;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo-container img {
  height: 120px;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.logo-container img:hover {
  transform: scale(1.05);
}

.logo-container h1 {
  font-size: 50px;
  font-weight: 700;
  margin: 0;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #ffffff;
}

/* Body padding to avoid overlap */
body {
  padding-top: 160px;
}

/* ================= Section Styling ================= */
section {
  padding: 80px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 60px;
  transition: all 0.5s ease;
}

/* ================= Future / Control ================= */
.future {
  background-color: #ffffff;
}

.image-frame {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.future-images {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: auto;
  gap: 30px;
  padding-bottom: 10px;
}

.future-images img {
  width: 300px;
  max-width: 90vw;
  border-radius: 18px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.future-images img:hover {
  transform: scale(1.08) rotate(1deg);
  box-shadow: 0 12px 35px rgba(0,0,0,0.25);
}

.control-text {
  max-width: 900px;
  width: 100%;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-text .control {
  font-weight: 700;
  font-size: 1.6em;
  color: #004aad;
  border-left: 6px solid #2f3fa0;
  padding-left: 18px;
  letter-spacing: 0.5px;
}

.control-text ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.control-text ul li {
  background: #f0f4ff;
  padding: 18px 22px;
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  font-weight: 500;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.control-text ul li:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Hand Rail */
.future-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.future-text p {
  font-size: 1.35em;
  font-weight: 700;
  color: #004aad;
  letter-spacing: 1px;
}

.future-text img {
  width: 300px;
  border-radius: 18px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  transition: transform 0.3s ease;
}

.future-text img:hover {
  transform: scale(1.05) rotate(-1deg);
}

/* ================= Sensor Section ================= */
.sensor {
  background-color: #f5f8fa;
  border-top: 3px solid #004aad;
  border-bottom: 3px solid #004aad;
}

.sensor-image img {
  width: 240px;
  border-radius: 15px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sensor-image img:hover {
  transform: scale(1.05) rotate(1deg);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.sensor h2 {
  font-size: 2.2em;
  font-weight: 700;
  color: #2f3fa0;
  margin-bottom: 20px;
}

.sensor-description {
  max-width: 900px;
  font-size: 1.1em;
  line-height: 1.8;
  color: #444;
}

.sensor-description ul {
  margin-top: 15px;
  padding-left: 20px;
}

.sensor-description ul li {
  margin-bottom: 12px;
  font-weight: 500;
  background: #e0e7ff;
  padding: 12px 18px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.sensor-description ul li:hover {
  background: #cfe0ff;
  transform: translateX(3px);
}

.sensor h3 {
  font-size: 1.6em;
  font-weight: 700;
  color: #004aad;
  margin-top: 30px;
}

/* ================= Landing Doors ================= */
.landing-doors {
  background-color: #f8faff;
}

.landing-container {
  max-width: 1200px;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: flex-start;
}

.landing-images {
  flex: 1 1 350px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.landing-images img {
  width: 240px;
  border-radius: 18px;
  box-shadow: 0 6px 25px rgba(0,0,0,0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.landing-images img:hover {
  transform: scale(1.05) rotate(-1deg);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.landing-text {
  flex: 2 1 500px;
  line-height: 1.8;
  font-size: 1.05em;
  color: #333;
}

.landing-text h3 {
  font-size: 1.4em;
  font-weight: 700;
  color: #004aad;
  margin-bottom: 15px;
}

.landing-text ul li {
  background: #e6f0ff;
  padding: 12px 18px;
  border-radius: 12px;
}

.landing-text ul li:hover {
  background: #cfe0ff;
  transform: translateX(3px);
}

/* ================= Responsive ================= */
@media (max-width: 1024px) {
  .logo-container h1 { font-size: 40px; }
  .future-images img { width: 250px; }
  .future-text img, .sensor-image img, .landing-images img { width: 220px; }
}

@media (max-width: 768px) {
  .logo-container h1 { font-size: 28px; }
  .future-images img, .future-text img, .sensor-image img, .landing-images img { width: 80%; max-width: 250px; }
  .control-text ul { grid-template-columns: 1fr; }
  .control-text, .sensor-description, .landing-text { text-align: center; }
  .landing-container { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .logo-container img { height: 100px; }
  .future-images img, .future-text img, .sensor-image img, .landing-images img { width: 90%; }
}