/* ========================================
   SITOCITY HOMES - MAIN STYLESHEET
   Professional Real Estate Advisory
   ======================================== */

/* ========================================
   CSS VARIABLES - COLOR PALETTE
   ======================================== */
:root {
  /* Primary Colors - Elegant Purple/Plum */
  --primary-color: #7B4B94;
  --primary-dark: #5A3470;
  --primary-light: #9D6BB3;

  /* Accent Colors - Rose Gold & Warm Tones */
  --accent-color: #C89B7B;
  --accent-light: #E5C4A8;
  --accent-dark: #A67C5D;

  /* Neutral Colors */
  --white: #FFFFFF;
  --off-white: #FAF9F7;
  --light-gray: #F5F3F1;
  --gray: #C0C0C0;
  --dark-gray: #666666;
  --text-dark: #2D2D2D;
  --black: #1A1A1A;

  /* Semantic Colors */
  --success: #5B9E7F;
  --warning: #D4A574;
  --error: #C17B7B;

  /* Shadows & Borders */
  --shadow-sm: 0 2px 8px rgba(123, 75, 148, 0.1);
  --shadow-md: 0 4px 16px rgba(123, 75, 148, 0.15);
  --shadow-lg: 0 8px 32px rgba(123, 75, 148, 0.2);
  --border-radius: 8px;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Transitions */
  --transition: all 0.3s ease;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--off-white);
  overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary-dark);
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

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

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-family: var(--font-primary);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-accent:hover {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-whatsapp {
  background-color: #25D366;
  color: var(--white);
  border-color: #25D366;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-whatsapp:hover {
  background-color: #1EBE57;
  border-color: #1EBE57;
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-whatsapp i {
  font-size: 1.2rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.logo-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-dark);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: var(--transition);
}

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

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

.nav-link.active {
  color: var(--primary-color);
}

.nav-link.active::after {
  width: 100%;
}

/* Dropdown Menu Styles */
.nav-menu > li {
  position: relative;
}

.nav-item-dropdown {
  position: relative;
}

.nav-link-dropdown {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
}

.nav-link-dropdown i {
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.nav-item-dropdown:hover .nav-link-dropdown i {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--white);
  min-width: 260px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  padding: 0.5rem 0;
  margin-top: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  margin-top: 0.5rem;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: var(--text-dark);
  font-weight: 500;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.dropdown-menu a:hover {
  background-color: var(--light-gray);
  border-left-color: var(--primary-color);
  color: var(--primary-color);
  padding-left: 1.5rem;
}

.dropdown-menu a i {
  margin-right: 0.5rem;
  color: var(--accent-color);
  width: 16px;
  text-align: center;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: var(--transition);
  border-radius: 2px;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  margin-top: 80px;
  background: linear-gradient(135deg, rgba(123, 75, 148, 0.95), rgba(200, 155, 123, 0.85)),
              url('../images/hero-bg.jpg') center/cover no-repeat;
  color: var(--white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--white);
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero p {
  color: var(--off-white);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--dark-gray);
  margin-top: var(--spacing-md);
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

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

.card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-body {
  padding: var(--spacing-md);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

.card-text {
  color: var(--dark-gray);
  margin-bottom: var(--spacing-sm);
}

.card-footer {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--light-gray);
  border-top: 1px solid var(--gray);
}

/* ========================================
   GRID LAYOUTS
   ======================================== */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ========================================
   FEATURES / BENEFITS
   ======================================== */
.feature-box {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-sm);
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 2rem;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

.feature-description {
  color: var(--dark-gray);
  font-size: 0.95rem;
}

/* ========================================
   PROPERTY CARDS
   ======================================== */
.property-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.property-image {
  position: relative;
  overflow: hidden;
  height: 280px;
}

.property-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.property-card:hover .property-image img {
  transform: scale(1.1);
}

.property-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--accent-color);
  color: var(--white);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.property-info {
  padding: var(--spacing-md);
}

.property-title {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  color: var(--primary-dark);
}

.property-location {
  color: var(--dark-gray);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.property-price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: var(--spacing-sm);
}

.property-features {
  display: flex;
  gap: 1rem;
  margin-bottom: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--light-gray);
}

.property-feature {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--dark-gray);
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonial-card {
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  position: relative;
  border-left: 4px solid var(--accent-color);
}

.testimonial-text {
  font-style: italic;
  color: var(--dark-gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 600;
}

.testimonial-details h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  color: var(--primary-dark);
}

.testimonial-details p {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 0;
}

/* ========================================
   PARTNERS SECTION
   ======================================== */
.partner-card {
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
}

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

.partner-logo {
  width: 100%;
  height: 120px;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
}

.partner-name {
  font-size: 1.25rem;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.partner-description {
  font-size: 0.9rem;
  color: var(--dark-gray);
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-info {
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: var(--spacing-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  color: var(--primary-dark);
}

.contact-details p, .contact-details a {
  color: var(--dark-gray);
  font-size: 0.95rem;
}

.contact-form {
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition);
  background-color: var(--off-white);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(123, 75, 148, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--primary-dark);
  color: var(--off-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.footer-section p, .footer-section a {
  color: var(--off-white);
  font-size: 0.95rem;
  line-height: 1.8;
}

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

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--accent-color);
  color: var(--white);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
}

.footer-credit {
  margin-top: 0.5rem;
  color: var(--accent-light);
}

.footer-credit a {
  color: var(--accent-light);
  font-weight: 600;
}

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

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Tablets */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .section-title { font-size: 2rem; }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md) 0;
    gap: 0;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu > li {
    width: 100%;
  }

  .nav-link {
    padding: 1rem;
    width: 100%;
    display: block;
  }

  /* Mobile Dropdown Styles */
  .nav-item-dropdown {
    width: 100%;
  }

  .nav-link-dropdown {
    justify-content: center;
    padding: 1rem;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    margin-top: 0;
    box-shadow: none;
    background-color: var(--light-gray);
    border-radius: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-item-dropdown.active .dropdown-menu {
    max-height: 400px;
    overflow-y: auto;
  }

  .nav-item-dropdown .nav-link-dropdown i {
    transition: transform 0.3s ease;
  }

  .nav-item-dropdown.active .nav-link-dropdown i {
    transform: rotate(180deg);
  }

  .dropdown-menu a {
    padding: 0.875rem 2rem;
    font-size: 0.95rem;
  }

  .dropdown-menu a:hover {
    padding-left: 2.5rem;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
}

/* Mobile */
@media (max-width: 480px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }

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

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }
}

/* ========================================
   FLOATING WHATSAPP BUTTON
   ======================================== */
.whatsapp-float {
  position: fixed;
  left: 20px;
  bottom: 20px;
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #128C7E;
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.6);
}

.whatsapp-float i {
  color: white;
}

@keyframes pulse {
  0% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.7);
  }
  100% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
}

.whatsapp-float {
  animation: pulse 2s infinite;
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 24px;
    left: 15px;
    bottom: 15px;
  }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* ========================================
   LOADING STATES
   ======================================== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(123, 75, 148, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

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

:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
  .header, .footer, .btn, .mobile-menu-toggle {
    display: none;
  }

  body {
    background-color: var(--white);
  }
}