:root {
  /* Colors */
  --primary-color: #2C3E50;
  --secondary-color: #2ECC71;
  --background-color: #F0F2F5;
  --footer-bg-color: #1A252F;
  --button-color: #3498DB;
  --text-color-dark: #2C3E50; /* Based on primary color for contrast */
  --text-color-light: #F0F2F5; /* For dark backgrounds */
  --text-color-gray: #6B7280; /* For paragraph text, similar to gray-600 */
  --accent-blue-start: #3B82F6; /* blue-500 from Tailwind */
  --accent-blue-end: #4F46E5; /* indigo-600 from Tailwind */

  /* Section Backgrounds */
  --section-bg-1: #E0E5EC;
  --section-bg-2: #F8F9FA;
  --section-bg-3: #DAE1E7;
  --section-bg-4: #D3D9E2;
  --section-bg-5: #C7D0DA;
  --section-bg-6: #BABFD6;

  /* Typography */
  --font-family-base: 'Inter', sans-serif;
  --font-size-base: 1.125rem; /* text-lg */
  --line-height-base: 1.7;

  /* Spacing */
  --spacing-unit: 1rem; /* Base for consistent spacing */
  --padding-section: 4rem 2rem; /* Consistent section padding */

  /* Border Radius */
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 9999px; /* For rounded-full */

  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-color-dark);
  background-color: var(--background-color);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-base);
  color: var(--text-color-dark);
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem; /* text-5xl equivalent */
  font-weight: 800; /* font-extrabold */
  color: var(--primary-color);
  letter-spacing: -0.05em; /* Tweak for better visual */
}

h2 {
  font-size: 2.5rem; /* text-4xl equivalent */
  font-weight: 700; /* font-bold */
  color: #1F2937; /* gray-800 equivalent */
}

h3 {
  font-size: 2rem;
  font-weight: 600;
}

p {
  font-size: var(--font-size-base); /* text-lg */
  color: var(--text-color-gray);
  margin-bottom: 1.5rem;
}

a {
  color: var(--button-color);
  text-decoration: none;
  transition: all 0.3s ease-in-out;
}

a:hover {
  text-decoration: underline;
  color: var(--secondary-color);
}

/* Header - Glassmorphism Effect */
.header-glassmorphism {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.15); /* Semi-transparent background */
  backdrop-filter: blur(10px); /* Blur effect */
  -webkit-backdrop-filter: blur(10px); /* Safari support */
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.header-glassmorphism nav a {
  margin-left: 1.5rem;
  color: var(--primary-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.header-glassmorphism nav a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.header-glassmorphism nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--secondary-color);
  transition: width 0.3s ease-in-out;
}

.header-glassmorphism nav a:hover::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius-lg); /* rounded-full */
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s ease-in-out;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(to right, var(--accent-blue-start), var(--accent-blue-end));
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(to right, var(--accent-blue-end), var(--accent-blue-start));
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: darken(var(--secondary-color), 10%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* Section Backgrounds */
.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

.section-bg-4 {
  background-color: var(--section-bg-4);
}

.section-bg-5 {
  background-color: var(--section-bg-5);
}

.section-bg-6 {
  background-color: var(--section-bg-6);
}

/* Form Elements */
.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-color-dark);
  background-color: white;
  background-clip: padding-box;
  border: 1px solid #D1D5DB; /* gray-300 */
  border-radius: var(--border-radius-sm); /* Similar to rounded-md */
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--secondary-color);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(46, 204, 113, 0.25); /* Accent color focus ring */
}

/* Footer */
.footer-dark {
  background-color: var(--footer-bg-color);
  color: var(--text-color-light);
  padding: 2rem 2rem;
  font-size: 0.9rem;
  text-align: center;
}

.footer-dark .footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-dark .footer-links a {
  color: var(--text-color-light);
  margin: 0 1rem;
  position: relative;
  display: inline-block;
}

.footer-dark .footer-links a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer-dark .social-icons a {
  color: var(--text-color-light);
  font-size: 1.5rem;
  margin: 0 0.75rem;
  position: relative;
  display: inline-block;
  transition: all 0.3s ease-in-out;
}

.footer-dark .social-icons a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
  z-index: 0;
}

.footer-dark .social-icons a:hover::before {
  width: 100%;
  height: 100%;
}

.footer-dark .social-icons a:hover {
  color: var(--secondary-color);
  transform: translateY(-3px);
}

/* Utility for responsive containers (Tailwind's container class is preferred) */
.container-custom {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* AOS (Animate On Scroll) integration - Tailwind classes for animation are common */
/* Example for fade-up (AOS will add data-aos attributes) */
[data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(20px);
  transition-property: transform, opacity;
  transition-duration: 0.8s;
  transition-timing-function: ease-out;
}

[data-aos="fade-up"].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="slide-in-left"] {
  opacity: 0;
  transform: translateX(-50px);
  transition-property: transform, opacity;
  transition-duration: 0.8s;
  transition-timing-function: ease-out;
}

[data-aos="slide-in-left"].aos-animate {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive Design (Mobile-first with Tailwind breakpoints) */
/* This CSS would complement Tailwind's utility classes. */
@media (min-width: 768px) { /* md breakpoint */
  .header-glassmorphism nav {
    display: block; /* Show nav on larger screens */
  }

  .footer-dark .footer-content {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) { /* lg breakpoint */
  h1 {
    font-size: 4.5rem; /* Even larger on desktop */
  }
  h2 {
    font-size: 3rem;
  }
  .header-glassmorphism {
    padding: 1rem 4rem;
  }
  .footer-dark {
    padding: 2rem 4rem;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}