:root {
  /* Enhanced Blue Theme Palette */
  --primary-color: #0d47a1;
  /* Deeper, more corporate blue */
  --primary-light: #1976d2;
  /* Lighter blue for hover/accents */
  --primary-gradient: linear-gradient(135deg, #0d47a1 0%, #1976d2 100%);
  --secondary-color: #424242;
  /* Dark Grey for text contrast */
  --accent-color: #2196f3;
  /* Bright blue accent */

  --text-color: #212121;
  --text-light: #757575;
  --bg-color: #ffffff;
  --bg-light: #f5f7fa;
  /* Very subtle blue-grey background */

  --nav-height: 80px;
  --container-width: 1200px;
  --spacing-unit: 1rem;

  --font-main: 'Roboto', sans-serif;
  /* Unified Font: Roboto */

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  /* Softer, modern shadows */
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 24px rgba(0, 0, 0, 0.12);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
  /* Crisp text */
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 1rem;
  line-height: 1.25;
  color: var(--primary-color);
  font-weight: 700;
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2.25rem;
  margin-top: 2rem;
  position: relative;
  display: inline-block;
}

h3 {
  font-size: 1.5rem;
  color: var(--text-color);
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

/* Layout Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  /* More breathing room */
}

.section-bg {
  background-color: var(--bg-light);
}

/* Header & Navigation */
header {
  height: var(--nav-height);
  /* Smoother glassy finish with subtle blue tint to match logo */
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(13, 71, 161, 0.1);
  /* Subtle logo-blue border */
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 15px;
  /* Space between logo and text */
}

.logo img {
  height: 50px;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 32px;
}

nav a {
  font-weight: 500;
  font-size: 16px;
  color: var(--text-color);
  position: relative;
  padding: 5px 0;
}

nav a:hover,
nav a.active {
  color: var(--primary-light);
}

nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background: var(--primary-gradient);
  transition: width 0.3s ease;
}

nav a:hover::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--primary-color);
}

/* Hero Section */
#home {
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 100px;
  background: linear-gradient(135deg, #e3f2fd 0%, #ffffff 100%);
  /* Subtle blue gradient bg */
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
}

.hero-text .lead {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--primary-gradient);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.3);
  color: white;
}

.hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: perspective(1000px) rotateY(-5deg);
  /* Subtle 3D effect */
  transition: transform 0.5s ease;
}

.hero-image img:hover {
  transform: perspective(1000px) rotateY(0deg);
}

/* Cards (Vision/Mission) */
.vision-mission-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 80px;
}

.card {
  background: white;
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border-top: 4px solid transparent;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--primary-color);
}

.card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* ISO Grid */
.iso-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.iso-item {
  background: white;
  padding: 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid #eee;
}

.iso-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-gradient);
}

.iso-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.iso-item h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Check List */
.check-list {
  list-style: none;
}

.check-list li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 12px;
  color: var(--text-color);
}

.check-list li::before {
  content: '✓';
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.1em;
}

/* Forms */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-form {
  padding: 40px;
}

.contact-info {
  background: var(--primary-gradient);
  color: white;
  padding: 40px;
}

.contact-info h3,
.contact-info p,
.contact-info a {
  color: white;
}

.contact-info a {
  opacity: 0.9;
}

.contact-info a:hover {
  opacity: 1;
}

input,
textarea {
  width: 100%;
  padding: 14px;
  border: 2px solid #e0e0e0;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  background: #f9f9f9;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-light);
  background: white;
}

button[type="submit"] {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  width: 100%;
  transition: all 0.3s ease;
  margin-top: 10px;
}

button[type="submit"]:hover {
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.4);
  transform: translateY(-2px);
}

/* Footer */
footer {
  background-color: #1a1a1a;
  color: #fff;
  padding: 60px 0;
  text-align: center;
  font-size: 0.9rem;
  color: #888;
}

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: white;
    padding: 20px;
    box-shadow: var(--shadow-md);
    border-top: 1px solid #eee;
  }

  nav ul.show {
    display: flex;
  }

  .logo-text {
    font-size: 20px;
    /* Smaller font on mobile */
  }

  .hero-content,
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  h1 {
    font-size: 2.25rem;
  }

  .section {
    padding: 60px 0;
  }

  .hero-image {
    order: -1;
  }

  /* Image on top on mobile */
}