/* X0 Start Custom CSS - Replaces Bootstrap */
/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #212529;
  background-color: #f8f9fa;
  overflow-x: hidden;
}

/* Layout Utilities */
.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-lg-row-reverse { flex-direction: row; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.align-items-start { align-items: flex-start; }
.flex-grow-1 { flex: 1; }
.min-vh-100 { min-height: 100vh; }
.gap-3 { gap: 1rem; }
.ms-auto { margin-left: auto; }
.me-2 { margin-right: 0.5rem; }
.me-3 { margin-right: 1rem; }
.ms-2 { margin-left: 0.5rem; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.my-4 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.pt-0 { padding-top: 0; }
.py-3 { padding-top: 1rem; padding-bottom: 1rem; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }
.px-3 { padding-left: 1rem; padding-right: 1rem; }
.d-none { display: none; }
.d-block { display: block; }
.d-inline-block { display: inline-block; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Grid System */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.75rem;
}

.col-lg-3, .col-lg-4, .col-lg-6, .col-md-2, .col-md-4, .col-md-6 {
  width: 100%;
  padding: 0 0.75rem;
}

@media (min-width: 768px) {
  .col-md-2 { width: 16.666%; }
  .col-md-4 { width: 33.333%; }
  .col-md-6 { width: 50%; }
}

@media (min-width: 992px) {
  .col-lg-3 { width: 25%; }
  .col-lg-4 { width: 33.333%; }
  .col-lg-6 { width: 50%; }
  .flex-lg-row-reverse { flex-direction: row-reverse; }
  .mb-lg-0 { margin-bottom: 0; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 1rem 0;
  font-weight: 600;
  line-height: 1.2;
}

.display-4 { font-size: 2.5rem; font-weight: 700; }
.display-6 { font-size: 2rem; font-weight: 700; }
.lead { font-size: 1.25rem; font-weight: 300; }
.text-center { text-align: center; }
.text-muted { color: #6c757d; }
.text-white { color: #fff; }
.text-primary { color: #0d6efd; }
.text-success { color: #198754; }
.text-warning { color: #ffc107; }
.fw-bold { font-weight: 700; }
.small { font-size: 0.875rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-primary {
  color: #fff;
  background-color: #0d6efd;
  border-color: #0d6efd;
}

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0a58ca;
}

.btn-success {
  color: #fff;
  background-color: #198754;
  border-color: #198754;
}

.btn-success:hover {
  background-color: #157347;
  border-color: #146c43;
}

.btn-light {
  color: #212529;
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

.btn-light:hover {
  background-color: #e2e6ea;
  border-color: #dae0e5;
}

.btn-outline-primary {
  color: #0d6efd;
  background-color: transparent;
  border-color: #0d6efd;
}

.btn-outline-primary:hover {
  color: #fff;
  background-color: #0d6efd;
}

.btn-outline-secondary {
  color: #6c757d;
  background-color: transparent;
  border-color: #6c757d;
}

.btn-outline-secondary:hover {
  color: #fff;
  background-color: #6c757d;
}

.btn-outline-light {
  color: #f8f9fa;
  background-color: transparent;
  border-color: #f8f9fa;
}

.btn-outline-light:hover {
  color: #212529;
  background-color: #f8f9fa;
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
}

/* Cards */
.card {
  background-color: #fff;
  border: 1px solid rgba(0,0,0,0.125);
  border-radius: 0.5rem;
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(0,0,0,0.125);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(0,0,0,0.125);
}

.card-title {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.card-text {
  margin-bottom: 1rem;
}

.h-100 { height: 100%; }
.border-0 { border: 0; }
.shadow { box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15); }
.shadow-sm { box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075); }
.shadow-lg { box-shadow: 0 1rem 3rem rgba(0,0,0,0.175); }
.rounded { border-radius: 0.5rem; }
.border-start { border-left: 1px solid #dee2e6; }
.border-4 { border-width: 4px; }

/* Background Colors */
.bg-light { background-color: #f8f9fa; }
.bg-white { background-color: #fff; }
.bg-primary { background-color: #0d6efd; }
.bg-success { background-color: #198754; }
.bg-secondary { background-color: #6c757d; }
.bg-danger { background-color: #dc3545; }
.bg-dark { background-color: #212529; }

/* Navigation */
.navbar {
  display: flex;
  align-items: center;
  padding: 1rem 0;
  background-color: #f8f9fa;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  color: #212529;
}

.navbar-brand img {
  height: 30px;
  margin-right: 0.5rem;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
  align-items: center;
}

.nav-item {
  list-style: none;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: #212529;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover {
  color: #0d6efd;
}

.navbar-toggler {
  display: none;
  padding: 0.25rem 0.75rem;
  font-size: 1.25rem;
  background-color: transparent;
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: 0.25rem;
  cursor: pointer;
}

.navbar-toggler-icon {
  display: inline-block;
  width: 1.5em;
  height: 1.5em;
  vertical-align: middle;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
}

@media (max-width: 991px) {
  .navbar-toggler {
    display: block;
  }
  
  .navbar-collapse {
    display: none;
    width: 100%;
    margin-top: 1rem;
  }
  
  .navbar-collapse.show {
    display: block;
  }
  
  .navbar .container {
    flex-wrap: wrap;
  }
  
  .navbar-nav {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-link {
    padding: 0.75rem 0;
    border-top: 1px solid rgba(0,0,0,0.1);
  }
  
  .btn {
    width: 100%;
    margin-top: 0.5rem;
  }
}

/* Forms */
.form-control {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: #212529;
  background-color: #fff;
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  outline: 0;
  border-color: #86b7fe;
  box-shadow: 0 0 0 0.25rem rgba(13,110,253,0.25);
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.375rem;
}

.alert-success {
  color: #0f5132;
  background-color: #d1e7dd;
  border-color: #badbcc;
}

.alert-danger {
  color: #842029;
  background-color: #f8d7da;
  border-color: #f5c2c7;
}

/* Lists */
.list-unstyled {
  list-style: none;
  padding: 0;
}

.list-unstyled li {
  margin-bottom: 0.5rem;
}

.feature-icon {
  width: 64px;
  height: 64px;
}

/* Code Block Styles */
pre {
  background-color: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 0.375rem;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

code {
  background-color: #f8f9fa;
  color: #d63384;
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875em;
}

pre code {
  background-color: transparent;
  color: #212529;
  padding: 0;
  border-radius: 0;
  display: block;
}

/* Images */
.img-fluid {
  max-width: 100%;
  height: auto;
}

/* Spinner */
.spinner-border {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 0.2em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-border 0.75s linear infinite;
}

.spinner-border-sm {
  width: 0.75rem;
  height: 0.75rem;
  border-width: 0.15em;
}

@keyframes spinner-border {
  to { transform: rotate(360deg); }
}

/* Hero Section */
.hero-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* Business Approach Cards */
.business-approach-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.business-approach-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.business-approach-card.best {
  border-top: 5px solid #198754;
}

.business-approach-card.better {
  border-top: 5px solid #0d6efd;
}

.business-approach-card.worst {
  border-top: 5px solid #dc3545;
}

/* Responsive Typography */
@media (max-width: 768px) {
  .display-4 { font-size: 2rem; }
  .display-6 { font-size: 1.5rem; }
  .lead { font-size: 1.1rem; }
  .hero-section { padding: 40px 0; }
}

/* Footer */
footer a {
  text-decoration: none;
  transition: opacity 0.2s;
}

footer a:hover {
  opacity: 0.8;
}

/* Utility Classes */
hr {
  margin: 1rem 0;
  border: 0;
  border-top: 1px solid rgba(0,0,0,0.1);
}

.position-relative { position: relative; }
.overflow-hidden { overflow: hidden; }