:root {
  /* Primary color palette */
  --primary-color: #3d7a9a; /* Calming blue - represents professionalism and trust */
  --primary-light: #5a9bbd;
  --primary-dark: #2a5a7a;
  
  /* Secondary color palette */
  --accent-color: #e07a5f; /* Warm terracotta - represents comfort and healing */
  --accent-light: #f49c84;
  --accent-dark: #c45f46;
  
  /* Neutral colors */
  --neutral-dark: #2d3e50;
  --neutral-medium: #707f8c;
  --neutral-light: #f5f7fa;
  --white: #ffffff;
  
  /* Typography */
  --heading-font: 'Montserrat', sans-serif;
  --body-font: 'Open Sans', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Border radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  color: var(--neutral-dark);
  line-height: 1.6;
  background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--neutral-dark);
}

h1 {
  font-size: 2.75rem;
  line-height: 1.2;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Button Styles */
.button, .cta-button, .secondary-button, .nav-button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-family: var(--heading-font);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cta-button {
  background-color: var(--accent-color);
  color: var(--white);
  font-size: 1.1rem;
  padding: 1rem 2rem;
  box-shadow: var(--shadow-md);
}

.cta-button:hover {
  background-color: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.secondary-button {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.secondary-button:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.nav-button {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.5rem 1.25rem;
}

.nav-button:hover {
  background-color: var(--primary-dark);
  color: var(--white);
}

/* Header & Navigation */
#header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--primary-color);
}

.main-nav ul {
  display: flex;
  list-style: none;
}

.main-nav li {
  margin: 0 1rem;
}

.main-nav a {
  color: var(--neutral-dark);
  font-weight: 500;
  position: relative;
}

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

.main-nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

/* Hero Section */
.hero-section {
  background: linear-gradient(rgba(45, 62, 80, 0.7), rgba(45, 62, 80, 0.7)), url('/images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  color: var(--white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-section h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 3.5rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
}

/* Services Section */
.services-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background-color: var(--neutral-light);
  text-align: center;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--primary-light);
  margin: 0 auto var(--spacing-sm);
  background-size: 50px;
  background-position: center;
  background-repeat: no-repeat;
}

.back-pain {
  background-image: url('images/back-icon.svg');
}

.neck-pain {
  background-image: url('images/neck-icon.svg');
}

.joint-pain {
  background-image: url('images/joint-icon.svg');
}

.sports-injury {
  background-image: url('images/sports-icon.svg');
}

/* About Section */
.about-section {
  padding: var(--spacing-xl) var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-lg);
}

.about-content {
  flex: 1;
  min-width: 300px;
}

.about-image {
  flex: 1;
  min-width: 300px;
  min-height: 400px;
  background-image: url('images/about-image.jpg');
  background-size: cover;
  background-position: center;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Testimonials Section */
.testimonials-section {
  padding: var(--spacing-xl) var(--spacing-md);
  background-color: var(--primary-color);
  color: var(--white);
  text-align: center;
}

.testimonials-section h2 {
  color: var(--white);
}

.testimonial-slider {
  max-width: 800px;
  margin: 0 auto;
}

.testimonial {
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-md);
}

.testimonial p {
  font-size: 1.2rem;
  font-style: italic;
}

.testimonial-author {
  font-weight: 600;
  margin-top: var(--spacing-sm);
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  background-color: var(--neutral-light);
}

.contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.contact-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  width: 300px;
  box-shadow: var(--shadow-md);
}

.contact-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-light);
  margin: 0 auto var(--spacing-sm);
  background-size: 30px;
  background-position: center;
  background-repeat: no-repeat;
}

.phone {
  background-image: url('images/phone-icon.svg');
}

.email {
  background-image: url('images/email-icon.svg');
}

.location {
  background-image: url('images/location-icon.svg');
}

/* Footer */
footer {
  background-color: var(--neutral-dark);
  color: var(--white);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-sm);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo a {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col a {
  color: var(--neutral-light);
}

.footer-col a:hover {
  color: var(--accent-light);
}

address {
  font-style: normal;
  line-height: 1.8;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Media Queries */
@media (max-width: 992px) {
  html {
    font-size: 15px;
  }
  
  .main-nav {
    display: none; /* Would need JS to toggle mobile menu */
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .hero-section h1 {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .about-section {
    flex-direction: column;
  }
  
  .about-image {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-card {
    width: 100%;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}