/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  line-height: 1.7;
  color: #e6e6e6;
  background-color: #0a192f;
  overflow-x: hidden;
  position: relative;
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  position: relative;
}

/* Header */
header {
  background-color: #0000;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 180, 216, 0.15);
  backdrop-filter: blur(8px);
}
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}
.nav-menu {
  display: flex;
  list-style: none;
}
.nav-menu li {
  margin-left: 2rem;
}
.nav-menu a {
  color: #fff;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1.5px;
  transition: color 0.3s;
}
.nav-menu a:hover {
  color: #00b4d8;
}

/* Hero */
.hero {
  background: url("dcaibkg.png") center/cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 180px 20px 120px;
  margin-top: 70px;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0,180,216,0.08) 0%, transparent 70%);
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  text-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.hero p {
  font-size: 1.5rem;
  margin-top: 1rem;
  opacity: 0.9;
}

/* Sections */
.section {
  padding: 80px 0;
  background-color: #0c2140;
}
.section h2 {
  font-size: 2.4rem;
  text-align: center;
  margin-bottom: 2rem;
  color: #00b4d8;
}
.alt-bg {
  background: #112240;
}



/* Core Principles */
.value-proposition {
  padding: 80px 0;
  background: #0c2140;
}
.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.value-card {
  background: #112240;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.value-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.6);
}
.value-card h3 {
  margin-bottom: 0.5rem;
  color: #00b4d8;
}
.value-card p {
  color: #e6e6e6;
  line-height: 1.6;
}

@media (min-width:768px) {
  .value-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Services */
.services {
  padding: 80px 0;
  background: #112240;
}
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}
.service-card {
  background: #0c2140;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.6);
}
.service-card h3 {
  margin-bottom: 0.5rem;
  color: #00b4d8;
}
.service-card p {
  color: #e6e6e6;
  line-height: 1.6;
}

@media (min-width:768px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}









/* Grid */
.design-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width:768px) {
  .design-grid { grid-template-columns: 1fr 1fr; align-items: center; }
}

/* Lists */
.list {
  list-style: none;
  padding-left: 0;
}
.list li {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  position: relative;
}
.list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: #00b4d8;
  font-weight: bold;
}

/* Images */
.img-rounded {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.4);
  transition: transform 0.4s ease;
}
.img-rounded:hover { transform: scale(1.05); }

/* Footer */
footer {
  background: #0a192f;
  text-align: center;
  border-top: 1px solid rgba(0,180,216,0.15);
  padding: 2rem 0;
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 1rem 0;
}
.footer-links a {
  color: #00b4d8;
  font-weight: 600;
}
.footer-links a:hover {
  text-decoration: underline;
}

/* Fade-in Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(25px);
  transition: all 0.9s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}