/* Custom Properties (CSS Variables) */
:root {
  /* Light theme colors */
  --color-primary: #0F172A;
  --color-secondary: #F1F5F9;
  --color-accent: #D4AF37;
  --color-text: #334155;
  --color-background: #FFFFFF;
  --color-border: #E2E8F0;
  
  /* Dark theme colors */
  --color-primary-dark: #F1F5F9;
  --color-secondary-dark: #0F172A;
  --color-text-dark: #CBD5E1;
  --color-background-dark: #0F172A;
  --color-border-dark: #334155;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Breakpoints */
  --breakpoint-mobile: 767px;
  --breakpoint-tablet: 1023px;
}

/* Dark mode variables */
[data-theme="dark"] {
  --color-primary: var(--color-primary-dark);
  --color-secondary: var(--color-secondary-dark);
  --color-text: var(--color-text-dark);
  --color-background: var(--color-background-dark);
  --color-border: var(--color-border-dark);
}

/* Auto dark mode based on system preference */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary: var(--color-primary-dark);
    --color-secondary: var(--color-secondary-dark);
    --color-text: var(--color-text-dark);
    --color-background: var(--color-background-dark);
    --color-border: var(--color-border-dark);
  }
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  /* Improve performance */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Skip to main content link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-accent);
  color: var(--color-background);
  padding: 8px;
  text-decoration: none;
  z-index: 1000;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 6px;
}

/* Update all sections to use CSS variables for proper dark mode support */
.header {
  background-color: var(--color-background);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.hero {
    background-color: var(--color-secondary);
    padding: var(--spacing-xl) 0;
    background-image: url('../assets/images/professional-team.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero .container {
    background-color: rgba(241, 245, 249, 0.4);
    padding: var(--spacing-lg);
    border-radius: 8px;
}

[data-theme="dark"] .hero .container {
    background-color: rgba(15, 23, 42, 0.4);
}

.services {
  padding: var(--spacing-xl) 0;
}

.service-card {
  background-color: var(--color-secondary);
  border-radius: 8px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  /* Hardware acceleration for smoother animations */
  will-change: transform;
  transform: translateZ(0);
}

.coverage {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

.industries {
  padding: var(--spacing-xl) 0;
}

.why-effectio {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

.value-pill {
  background-color: var(--color-background);
  border-radius: 8px;
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  /* Hardware acceleration for smoother animations */
  will-change: transform;
  transform: translateZ(0);
}

.case-studies {
  padding: var(--spacing-xl) 0;
}

.case-study-card {
  background-color: var(--color-secondary);
  border-radius: 8px;
  padding: var(--spacing-lg);
}

.engagement {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

.about {
  padding: var(--spacing-xl) 0;
}

.contact {
  background-color: var(--color-secondary);
  padding: var(--spacing-lg) 0;
}

.footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

/* In dark mode, footer should use dark background colors */
[data-theme="dark"] .footer {
  background-color: var(--color-secondary-dark);
  color: var(--color-text-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .footer {
    background-color: var(--color-secondary-dark);
    color: var(--color-text-dark);
  }
}


/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  text-align: center;
  position: relative;
  padding-bottom: var(--spacing-sm);
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--color-accent);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-accent);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 4px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-background);
}

.btn-primary:hover {
  background-color: #b8922d;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

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

.btn-secondary:hover {
  background-color: rgba(212, 175, 55, 0.1);
  transform: translateY(-2px);
}

/* Header */
.header {
  background-color: var(--color-background);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo a {
    text-decoration: none;
    border: none;
    outline: none;
}

.logo a:focus {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.logo img {
    width: 150px;
    height: auto;
    display: block;
}

/* Remove any background or filters that might interfere with the transparent logo */
[data-theme="dark"] .logo,
[data-theme="light"] .logo {
  background: none;
  padding: 0;
  border-radius: 0;
}

.navigation {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  margin-left: var(--spacing-md);
}

.nav-menu a {
  font-weight: 500;
  color: var(--color-text);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
}

.menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  margin-bottom: 4px;
  transition: all 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: var(--spacing-md);
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease;
}

.theme-toggle:hover {
  background-color: rgba(212, 175, 55, 0.1);
}

.theme-toggle:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.moon-icon {
  display: none;
}

.sun-icon {
  display: block;
}

/* Show moon icon in dark mode */
[data-theme="dark"] .moon-icon {
  display: block;
}

[data-theme="dark"] .sun-icon {
  display: none;
}

/* Auto dark mode */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .moon-icon {
    display: block;
  }
  
  :root:not([data-theme="light"]) .sun-icon {
    display: none;
  }
}

/* Hero Section */
.hero {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

/* Hero section in dark mode */
[data-theme="dark"] .hero {
  background-color: var(--color-secondary-dark);
  background-image: url('../assets/images/professional-team.jpg');
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero {
    background-color: var(--color-secondary-dark);
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero {
    background-color: var(--color-secondary-dark);
    background-image: url('../assets/images/professional-team.jpg');
  }
}

.hero .container {
  text-align: center;
}

.hero-content h1 {
  margin-bottom: var(--spacing-sm);
}

.hero-content p {
  font-size: var(--font-size-lg);
  max-width: 800px;
  margin: 0 auto;
}

/* Services Section */
.services {
  padding: var(--spacing-xl) 0;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.service-card {
  background-color: var(--color-secondary);
  border-radius: 8px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  /* Hardware acceleration for smoother animations */
  will-change: transform;
  transform: translateZ(0);
}

/* Service cards in dark mode */
[data-theme="dark"] .service-card {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .service-card {
    background-color: var(--color-secondary-dark);
  }
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-card img {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-sm);
}

/* Coverage Section */
.coverage {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

/* Coverage section in dark mode */
[data-theme="dark"] .coverage {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .coverage {
    background-color: var(--color-secondary-dark);
  }
}

.coverage-content {
  max-width: 800px;
  margin: 0 auto;
}

.coverage-content ul {
  columns: 2;
  column-gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.coverage-content li {
  margin-bottom: var(--spacing-sm);
  break-inside: avoid;
}

/* Industries Section */
.industries {
  padding: var(--spacing-xl) 0;
}

.industries-content {
  max-width: 800px;
  margin: 0 auto;
}

.industries-content ul {
  columns: 2;
  column-gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.industries-content li {
  margin-bottom: var(--spacing-sm);
  break-inside: avoid;
}

/* Why Effectio Section */
.why-effectio {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

/* Why Effectio section in dark mode */
[data-theme="dark"] .why-effectio {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .why-effectio {
    background-color: var(--color-secondary-dark);
  }
}

.value-pills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.value-pill {
  background-color: var(--color-background);
  border-radius: 8px;
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  /* Hardware acceleration for smoother animations */
  will-change: transform;
  transform: translateZ(0);
}

/* Value pill in dark mode */
[data-theme="dark"] .value-pill {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .value-pill {
    background-color: var(--color-secondary-dark);
  }
}

.value-pill:hover {
  transform: translateY(-5px);
}

/* Case Studies Section */
.case-studies {
  padding: var(--spacing-xl) 0;
}

.case-study-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.case-study-card {
  background-color: var(--color-secondary);
  border-radius: 8px;
  padding: var(--spacing-lg);
}

/* Case study cards in dark mode */
[data-theme="dark"] .case-study-card {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .case-study-card {
    background-color: var(--color-secondary-dark);
  }
}

/* Engagement Section */
.engagement {
  background-color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

/* Engagement section in dark mode */
[data-theme="dark"] .engagement {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .engagement {
    background-color: var(--color-secondary-dark);
  }
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 50px;
  height: 50px;
  background-color: var(--color-accent);
  color: var(--color-background);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-xl);
  margin: 0 auto var(--spacing-sm);
}

/* About Section */
.about {
  padding: var(--spacing-xl) 0;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

/* Contact Section */
.contact {
  background-color: var(--color-secondary);
  padding: var(--spacing-lg) 0;
}

/* Contact section in dark mode */
[data-theme="dark"] .contact {
  background-color: var(--color-secondary-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .contact {
    background-color: var(--color-secondary-dark);
  }
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    justify-items: center;
    text-align: center;
}

.contact-email {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-bottom-color 0.3s ease;
}

.contact-email:hover {
    border-bottom-color: var(--color-accent);
}

[data-theme="dark"] .contact-email {
    color: var(--color-primary-dark);
}

[data-theme="dark"] .contact-email:hover {
    border-bottom-color: var(--color-accent);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .contact-email {
        color: var(--color-primary-dark);
    }
    
    :root:not([data-theme="light"]) .contact-email:hover {
        border-bottom-color: var(--color-accent);
    }
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--spacing-md) 0 var(--spacing-md);
}

/* In dark mode, footer should use dark background colors */
[data-theme="dark"] .footer {
  background-color: var(--color-secondary-dark);
  color: var(--color-text-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .footer {
    background-color: var(--color-secondary-dark);
    color: var(--color-text-dark);
  }
}





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

.footer-content-single-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.footer-content-single-line img {
  width: 37.5px;
  height: auto;
  filter: none;
}

.footer-content-single-line p {
  margin: 0;
  display: inline-block;
}


/* Responsive Styles */
@media (max-width: 767px) {
  .header .container {
    flex-wrap: wrap;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    background-color: var(--color-background);
    position: absolute;
    top: 100%;
    left: 0;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .nav-menu li {
    margin: var(--spacing-sm) 0;
    padding: 0 var(--spacing-sm);
  }
  
  .hero .container {
    flex-direction: column;
  }
  
  .hero-content {
    padding-right: 0;
    margin-bottom: var(--spacing-lg);
  }
  
  .cta-buttons {
    justify-content: center;
  }
  
  .coverage-content ul,
  .industries-content ul {
    columns: 1;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .cta-buttons,
  .contact-form {
    display: none;
  }
  
  body {
    font-size: 12pt;
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
    break-after: avoid;
  }
  
  .case-study-cards,
  .service-cards {
    break-inside: avoid;
  }
}