:root {
  /* Colors */
  --color-primary: #4A00B7;
  --color-secondary: #7b68ee;
  --color-background: #F0F2F5;
  --color-footer-bg: #2C3E50;
  --color-button: #6C3483;
  --color-button-hover: #8E44AD;
  --color-text-dark: #2C3E50;
  --color-text-light: #FDFDFD;
  --color-accent-1: #FFEAD0;
  --color-accent-2: #FFC0CB;
  --color-accent-3: #B6A7F7;
  --color-accent-4: #F8F8F0;
  --color-accent-5: #E0FFE0;
  --color-accent-6: #ECEFF1;
  --color-accent-7: #F3F3F3;
  --color-accent-8: #E9F8F8;
  --color-accent-9: #F9F9F9;
  --color-accent-10: #FFEEEE;

  /* Fonts */
  --font-family-headline: 'Kanit', sans-serif;
  --font-family-body: 'Prompt', sans-serif;

  /* Spacing */
  --spacing-unit: 1rem; /* Base unit for consistency */
  --padding-sm: calc(var(--spacing-unit) * 0.5);
  --padding-md: var(--spacing-unit);
  --padding-lg: calc(var(--spacing-unit) * 1.5);
  --padding-xl: calc(var(--spacing-unit) * 2);

  /* Border Radius */
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;
  --border-radius-xl: 2rem;
  --border-radius-2xl: 2.5rem;
  --border-radius-br-full: 0 0 0 100%; /* For rounded-br-full effect */

  /* Shadows */
  --shadow-soft-1: 0 4px 15px rgba(0, 0, 0, 0.08);
  --shadow-soft-2: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-neumorphic: 5px 5px 15px rgba(0, 0, 0, 0.08), -5px -5px 15px rgba(255, 255, 255, 0.8);
  --shadow-glass-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-glass-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  --shadow-custom-xl: 0 4px 60px -15px rgba(0,0,0,0.1), 0 2px 15px -3px rgba(0,0,0,0.06);

  /* Transitions */
  --transition-speed: 0.3s;
  --transition-timing: ease-in-out;
}

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

body {
  font-family: var(--font-family-body);
  color: var(--color-text-dark);
  background-color: var(--color-background);
  line-height: 1.7; /* Enhanced readability */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  padding: 0;
  overflow-x: hidden; /* Prevent horizontal scroll from subtle animations */
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-headline);
  color: var(--color-primary);
  line-height: 1.2;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  letter-spacing: -0.02em; /* Slight tightening for headlines */
}

h1 {
  font-size: 3.5rem; /* ~56px */
  font-weight: 700;
}

h2 {
  font-size: 2.5rem; /* ~40px */
  font-weight: 600;
}

h3 {
  font-size: 1.8rem; /* ~28px */
  font-weight: 600;
}

p {
  margin-bottom: 1em;
  font-size: 1.1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed) var(--transition-timing);
}

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

/* Utility Classes for Spacing and Layout (complementing Tailwind) */
.section-spacing {
  padding: 80px 0; /* Generous vertical spacing for sections */
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--padding-lg);
}

/* Header Styles */
.header {
  background-color: rgba(255, 255, 255, 0.85); /* Slightly transparent */
  backdrop-filter: blur(10px); /* Glassmorphism effect */
  box-shadow: var(--shadow-glass-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--padding-md) var(--padding-xl);
  transition: background-color var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
}

.header-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-glass-lg);
}

.header-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--padding-lg);
}

.header-nav a {
  font-family: var(--font-family-headline);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--color-text-dark);
  position: relative;
}

.header-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-speed) var(--transition-timing);
}

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

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 2.2rem; /* Medium padding, slightly wider than tall */
  border: none;
  border-radius: var(--border-radius-lg); /* Soft rounded corners */
  font-family: var(--font-family-headline);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-light);
  background-color: var(--color-button);
  background-image: linear-gradient(135deg, var(--color-button) 0%, var(--color-secondary) 100%); /* Subtle gradient */
  box-shadow: var(--shadow-soft-1);
  transition: all var(--transition-speed) var(--transition-timing);
  position: relative;
  overflow: hidden;
}

.btn:hover {
  background-color: var(--color-button-hover);
  background-image: linear-gradient(135deg, var(--color-button-hover) 0%, var(--color-primary) 100%);
  box-shadow: var(--shadow-soft-2);
  transform: translateY(-2px); /* Lift effect */
}

.btn:active {
  transform: translateY(1px); /* Pressed effect */
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Card Styles (Neo Soft UI / Neumorphism inspired) */
.card {
  background-color: var(--color-background);
  border-radius: var(--border-radius-xl); /* Generous border-radius */
  padding: var(--padding-xl);
  box-shadow: var(--shadow-neumorphic); /* Neumorphic shadow */
  transition: transform var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px); /* Gentle lift on hover */
  box-shadow: 8px 8px 20px rgba(0, 0, 0, 0.1), -8px -8px 20px rgba(255, 255, 255, 0.9); /* Enhanced neumorphic shadow */
}

/* Section Backgrounds (for visual variety) */
.section-bg-1 {
  background-color: var(--color-accent-6); /* ECEFF1 */
}

.section-bg-2 {
  background-color: var(--color-accent-7); /* F3F3F3 */
}

.section-bg-3 {
  background-color: var(--color-accent-8); /* E9F8F8 */
}

.section-bg-4 {
  background-color: var(--color-accent-9); /* F9F9F9 */
}

/* Footer Styles */
.footer {
  background-color: var(--color-footer-bg);
  color: var(--color-text-light);
  padding: var(--padding-xl) 0;
  text-align: center;
  font-size: 0.9rem;
}

.footer a {
  color: var(--color-secondary);
}

.footer a:hover {
  color: var(--color-primary);
}

/* Glassmorphism Effect for specific elements (if needed) */
.glassmorphism-panel {
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-glass-sm);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--padding-xl);
}

/* General Image Styles */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .header-nav ul {
    flex-direction: column;
    gap: var(--padding-md);
  }

  .section-spacing {
    padding: 40px 0;
  }

  .container {
    padding: 0 var(--padding-md);
  }
}

/* Animations (example for subtle entrance) */
@keyframes fadeInSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--transition-timing), transform 0.6s var(--transition-timing);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}



/* 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;
    }
}