/* ===================================
   Architectural Studio - Midnight Blue & Amber Theme
   Primary: #1A237E | Secondary: #FFC107
   =================================== */

/* Root Variables */
:root {
  --primary-color: #1A237E;
  --secondary-color: #FFC107;
  --primary-dark: #0D1442;
  --primary-light: #3949AB;
  --secondary-dark: #FFA000;
  --secondary-light: #FFD54F;
  --text-light: #FFFFFF;
  --text-dark: #212529;
  --bg-light: #F8F9FA;
  --bg-dark: #1A237E;
  --shadow-sm: 0 2px 4px rgba(26, 35, 126, 0.1);
  --shadow-md: 0 4px 12px rgba(26, 35, 126, 0.15);
  --shadow-lg: 0 8px 24px rgba(26, 35, 126, 0.2);
  --transition: all 0.3s ease;
}

/* Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: #FFFFFF;
}

html {
  scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color) !important;
}

.text-white h1, .text-white h2, .text-white h3, .text-white h4, .text-white h5, .text-white h6,
.text-white .display-1, .text-white .display-2, .text-white .display-3, .text-white .display-4, .text-white .display-5, .text-white .display-6 {
  color: var(--text-light) !important;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
}

/* Navbar Styles */
.navbar {
  background-color: var(--primary-color) !important;
  padding: 1rem 0;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.navbar.sticky-top {
  background-color: rgba(26, 35, 126, 0.98) !important;
  backdrop-filter: blur(10px);
}

.navbar-brand {
  color: var(--text-light) !important;
  font-size: 1.5rem;
  font-weight: 700;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.navbar-brand:hover {
  color: var(--secondary-color) !important;
  transform: translateY(-2px);
}

.navbar-brand .bi {
  color: var(--secondary-color) !important;
  font-size: 1.8rem;
}

.navbar-toggler {
  border-color: var(--secondary-color) !important;
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.25) !important;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23FFC107' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  transition: var(--transition);
  position: relative;
  border-radius: 4px;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--secondary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
  color: var(--secondary-color) !important;
  background-color: rgba(255, 193, 7, 0.1) !important;
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 80%;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero-background {
  opacity: 0.15;
  z-index: 0;
  object-fit: cover;
  filter: blur(2px);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 193, 7, 0.1) 0%, transparent 50%);
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section .text-white {
  color: var(--text-light) !important;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section .display-3 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  animation: fadeInUp 1s ease-out;
  color: var(--text-light) !important;
}

.hero-section .lead {
  animation: fadeInUp 1s ease-out 0.2s backwards;
  color: rgba(255, 255, 255, 0.95) !important;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}

/* Buttons */
.btn {
  font-weight: 600;
  border-radius: 8px;
  transition: var(--transition);
  border: 2px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--secondary-dark) !important;
  border-color: var(--secondary-dark) !important;
  color: var(--text-light) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.btn-outline-light {
  border-color: var(--text-light) !important;
  color: var(--text-light) !important;
  background-color: transparent !important;
  border-width: 2px !important;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 193, 7, 0.4);
}

.btn-lg {
  padding: 0.875rem 2rem !important;
  font-size: 1.125rem;
}

.btn .bi {
  transition: var(--transition);
}

.btn:hover .bi-arrow-right {
  transform: translateX(5px);
}

/* Cards */
.card {
  border: none;
  border-radius: 12px;
  transition: var(--transition);
  overflow: hidden;
  background-color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.service-card {
  height: 100%;
  border: 2px solid rgba(26, 35, 126, 0.1);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-color);
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(255, 193, 7, 0.05) 100%);
}

.service-card .bi {
  font-size: 3rem;
  color: var(--secondary-color) !important;
  transition: var(--transition);
}

.service-card:hover .bi {
  transform: scale(1.1) rotate(5deg);
  color: var(--primary-color) !important;
}

.card-title {
  color: var(--primary-color) !important;
  font-weight: 700;
  font-size: 1.5rem;
}

.card-text {
  color: #6c757d !important;
  font-size: 1rem;
  line-height: 1.6;
}

.card-body {
  padding: 2rem;
}

/* Diagnostic Card */
.diagnostic-card {
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(26, 35, 126, 0.03) 100%);
  border: 2px solid rgba(26, 35, 126, 0.1);
  border-radius: 16px;
  transition: var(--transition);
}

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

.diagnostic-card .bi {
  font-size: 2.5rem;
  color: var(--primary-color) !important;
}

/* Cert Badge */
.cert-badge {
  background-color: #FFFFFF;
  border: 2px solid rgba(26, 35, 126, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition);
  text-align: center;
}

.cert-badge:hover {
  border-color: var(--secondary-color);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(255, 193, 7, 0.05) 100%);
}

.cert-badge .bi {
  font-size: 3rem;
  color: var(--secondary-color) !important;
  margin-bottom: 1rem;
}

/* Sections */
section {
  padding: 5rem 0;
  position: relative;
}

.bg-light {
  background-color: var(--bg-light) !important;
}

.py-5 {
  padding-top: 3rem !important;
  padding-bottom: 3rem !important;
}

/* Timeline */
.timeline-container {
  position: relative;
  padding: 2rem 0;
}

.timeline-line {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 3rem;
  animation: fadeInRight 0.6s ease-out;
}

.timeline-marker {
  position: absolute;
  left: -12px;
  top: 0;
  width: 24px;
  height: 24px;
  background-color: var(--secondary-color);
  border: 3px solid var(--primary-color);
  transition: var(--transition);
}

.timeline-item:hover .timeline-marker {
  transform: scale(1.3);
  background-color: var(--primary-color);
  border-color: var(--secondary-color);
}

/* Parallax Section */
.parallax-section {
  min-height: 400px;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
}

.parallax-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(26, 35, 126, 0.85) 0%, rgba(26, 35, 126, 0.7) 100%);
}

/* Forms */
.form-control,
.form-select {
  border: 2px solid rgba(26, 35, 126, 0.2);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: var(--transition);
  background-color: #FFFFFF !important;
  color: var(--text-dark) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.25) !important;
  background-color: #FFFFFF !important;
}

.form-label {
  font-weight: 600;
  color: var(--primary-color) !important;
  margin-bottom: 0.5rem;
}

.form-check-input {
  border: 2px solid rgba(26, 35, 126, 0.3);
  transition: var(--transition);
}

.form-check-input:checked {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.25) !important;
}

.form-check-label {
  color: var(--text-dark) !important;
  cursor: pointer;
}

.invalid-feedback {
  display: none;
  color: #dc3545 !important;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #dc3545 !important;
}

.form-control.is-invalid ~ .invalid-feedback {
  display: block;
}

/* Alerts */
.alert {
  border-radius: 8px;
  border: none;
  padding: 1rem 1.5rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.1) !important;
  color: #155724 !important;
  border-left: 4px solid #28a745;
}

.alert-info {
  background-color: rgba(23, 162, 184, 0.1) !important;
  color: #0c5460 !important;
  border-left: 4px solid #17a2b8;
}

.alert-heading {
  color: inherit !important;
  font-weight: 700;
}

/* List Group */
.list-group-item {
  border: 1px solid rgba(26, 35, 126, 0.1);
  padding: 1rem 1.25rem;
  transition: var(--transition);
  background-color: #FFFFFF !important;
}

.list-group-item:hover {
  background-color: rgba(255, 193, 7, 0.05) !important;
  border-color: var(--secondary-color);
  transform: translateX(5px);
}

.list-group-flush .list-group-item {
  border-width: 0 0 1px 0;
}

/* Breadcrumb */
.breadcrumb {
  background-color: transparent;
  padding: 1rem 0;
  margin-bottom: 2rem;
}

.breadcrumb-item {
  color: var(--primary-color) !important;
  font-weight: 500;
}

.breadcrumb-item.active {
  color: var(--secondary-color) !important;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--secondary-color) !important;
  content: '→';
}

.breadcrumb-item a {
  color: var(--primary-color) !important;
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb-item a:hover {
  color: var(--secondary-color) !important;
}

/* Accordion */
.accordion-item {
  border: 2px solid rgba(26, 35, 126, 0.1);
  border-radius: 8px !important;
  margin-bottom: 1rem;
  overflow: hidden;
}

.accordion-header {
  margin-bottom: 0;
}

.accordion-button {
  background-color: #FFFFFF !important;
  color: var(--primary-color) !important;
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  transition: var(--transition);
  border: none;
}

.accordion-button:not(.collapsed) {
  background-color: var(--primary-color) !important;
  color: var(--text-light) !important;
  box-shadow: none;
}

.accordion-button:not(.collapsed) .bi {
  color: var(--secondary-color) !important;
}

.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.25);
  border-color: var(--secondary-color);
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231A237E'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FFC107'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-body {
  padding: 1.5rem;
  background-color: rgba(26, 35, 126, 0.02);
  color: var(--text-dark) !important;
}

/* Table */
.table {
  color: var(--text-dark) !important;
  border-collapse: separate;
  border-spacing: 0;
}

.table thead th {
  background-color: var(--primary-color) !important;
  color: var(--text-light) !important;
  border: none;
  padding: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
}

.table tbody tr {
  transition: var(--transition);
  background-color: #FFFFFF;
}

.table tbody tr:hover {
  background-color: rgba(255, 193, 7, 0.1) !important;
  transform: scale(1.01);
  box-shadow: var(--shadow-sm);
}

.table tbody td {
  padding: 1rem;
  border-bottom: 1px solid rgba(26, 35, 126, 0.1);
  vertical-align: middle;
  color: var(--text-dark) !important;
}

.table-responsive {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* Performance Comparison */
.performance-comparison {
  background-color: #FFFFFF;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

/* Scanner Animation */
.scanner-animation {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  border-radius: 12px;
  padding: 3rem;
}

.scanner-animation::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 193, 7, 0.1) 50%,
    transparent 70%
  );
  animation: scan 3s linear infinite;
}

/* Diagnostic Hero */
.diagnostic-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.diagnostic-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="%23FFC107" stroke-width="0.5" opacity="0.1"/></svg>');
  background-size: 100px 100px;
  opacity: 0.3;
}

/* Footer */
footer {
  background-color: var(--primary-dark) !important;
  color: rgba(255, 255, 255, 0.8) !important;
  padding: 3rem 0 1rem;
}

footer h5,
footer h6 {
  color: var(--text-light) !important;
  font-weight: 700;
}

footer a {
  color: rgba(255, 255, 255, 0.8) !important;
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}

footer a:hover {
  color: var(--secondary-color) !important;
  transform: translateX(5px);
}

footer .bi {
  color: var(--secondary-color) !important;
  margin-right: 0.5rem;
}

footer .text-muted {
  color: rgba(255, 255, 255, 0.5) !important;
}

/* Icon Styles */
.bi {
  display: inline-block;
  vertical-align: middle;
  transition: var(--transition);
}

.bi-check-circle-fill {
  color: var(--secondary-color) !important;
}

/* Utility Classes */
.text-primary {
  color: var(--primary-color) !important;
}

.text-secondary {
  color: var(--secondary-color) !important;
}

.bg-primary {
  background-color: var(--primary-color) !important;
}

.bg-secondary {
  background-color: var(--secondary-color) !important;
}

.text-white {
  color: var(--text-light) !important;
}

.text-muted {
  color: #6c757d !important;
}

.shadow {
  box-shadow: var(--shadow-md) !important;
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

.rounded {
  border-radius: 8px !important;
}

.opacity-75 {
  opacity: 0.75 !important;
}

.opacity-25 {
  opacity: 0.25 !important;
}

/* Image Styles */
.img-fluid {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.object-fit-cover {
  object-fit: cover;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scan {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.8s ease-out forwards;
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  animation: fadeInRight 0.8s ease-out forwards;
}

.slide-in-up {
  opacity: 0;
  transform: translateY(50px);
  animation: fadeInUp 0.8s ease-out forwards;
}

/* Hover Effects */
.hover-lift {
  transition: var(--transition);
}

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

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(255, 193, 7, 0.5);
}

/* Loading Spinner */
.spinner-border {
  border-color: var(--secondary-color);
  border-right-color: transparent;
}

/* Responsive Design */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: rgba(26, 35, 126, 0.98);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    box-shadow: var(--shadow-md);
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
    border-radius: 4px;
  }
  
  .hero-section {
    min-height: 100vh;
    padding: 2rem 0;
  }
  
  .display-3 {
    font-size: 2.5rem !important;
  }
  
  .display-4 {
    font-size: 2rem !important;
  }
  
  .display-5 {
    font-size: 1.75rem !important;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 1rem;
  }
  
  .timeline-line {
    left: 15px;
  }
  
  .timeline-marker {
    left: 3px;
  }
}

@media (max-width: 767.98px) {
  .hero-section .display-3 {
    font-size: 2rem !important;
  }
  
  .hero-section .lead {
    font-size: 1.1rem !important;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .service-card .bi {
    font-size: 2.5rem;
  }
  
  section {
    padding: 2rem 0;
  }
  
  .parallax-section {
    background-attachment: scroll;
    min-height: 300px;
  }
  
  .table {
    font-size: 0.875rem;
  }
  
  .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  .gap-3 {
    gap: 0.5rem !important;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .hero-section {
    padding: 1rem 0;
  }
  
  .display-3 {
    font-size: 1.75rem !important;
  }
  
  h1, .h1 {
    font-size: 1.75rem !important;
  }
  
  h2, .h2 {
    font-size: 1.5rem !important;
  }
  
  h3, .h3 {
    font-size: 1.25rem !important;
  }
  
  .btn-lg {
    padding: 0.625rem 1.25rem !important;
    font-size: 0.95rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  footer {
    text-align: center;
  }
  
  footer .col-lg-3,
  footer .col-lg-2,
  footer .col-md-6 {
    margin-bottom: 2rem;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .btn,
  footer,
  .navbar-toggler {
    display: none !important;
  }
  
  body {
    background-color: #FFFFFF;
    color: #000000;
  }
  
  .card,
  .service-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #000000;
  }
}

/* Accessibility */
.visually-hidden {
  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 */
*:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

button:focus,
.btn:focus,
a:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/* Dark Elements */
[class*="bg-dark"],
[class*="navbar-dark"],
.hero-section,
.diagnostic-hero,
footer,
.accordion-button:not(.collapsed) {
  color: var(--text-light) !important;
}

[class*="bg-dark"] h1,
[class*="bg-dark"] h2,
[class*="bg-dark"] h3,
[class*="bg-dark"] h4,
[class*="bg-dark"] h5,
[class*="bg-dark"] h6,
[class*="bg-dark"] p,
[class*="bg-dark"] a,
[class*="bg-dark"] span {
  color: var(--text-light) !important;
}

/* Position Utilities */
.position-relative {
  position: relative;
}

.position-absolute {
  position: absolute;
}

.position-sticky {
  position: sticky;
}

/* Display Utilities */
.d-none {
  display: none !important;
}

.d-inline-flex {
  display: inline-flex !important;
}

/* Min Height */
.min-vh-100 {
  min-height: 100vh !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-color);
}

/* Selection */
::selection {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

::-moz-selection {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}