:root {
  
  --color-primary: #1e3a8a; 
  --color-primary-dark: #1e1b4b;
  --color-secondary: #7c3aed; 
  --color-accent: #10b981; 
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-background: #ffffff; 
  --color-surface: #f8fafc; 
  --color-text: #0f172a; 
  --color-text-light: #64748b; 
  --color-border: #e2e8f0;
  --color-shadow: rgba(0, 0, 0, 0.1);

  --font-family-headings: 'Montserrat', sans-serif; 
  --font-family-body: 'Open Sans', sans-serif; 
  --font-size-xl: 3.75rem; 
  --font-size-lg: 3rem; 
  --font-size-md: 2.25rem; 
  --font-size-base: 1.125rem; 
  --font-size-sm: 1rem; 
  --font-size-xs: 0.875rem; 
  --line-height-headings: 1.2;
  --line-height-body: 1.6;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --shadow-sm: 0 1px 2px var(--color-shadow);
  --shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -1px var(--color-shadow);
  --shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -2px var(--color-shadow);

  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}



*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding-top: 5rem;
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--space-md);
  font-family: var(--font-family-headings);
  font-weight: 700;
  line-height: var(--line-height-headings);
}

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

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

a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

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

ul, ol {
  padding-left: var(--space-lg);
  margin-top: 0;
  margin-bottom: var(--space-md);
}

li {
  margin-bottom: var(--space-xs);
}

h1 { font-size: var(--font-size-xl); }
h2 { font-size: var(--font-size-lg); }
h3 { font-size: var(--font-size-md); }
h4 { font-size: var(--font-size-base); }
h5 { font-size: var(--font-size-sm); }
h6 { font-size: var(--font-size-xs); }

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

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

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.d-flex {
  display: flex;
}

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

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.custom-grid {
  display: grid;
  gap: var(--space-lg);
}

.custom-grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.navbar-custom {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
  transition: var(--transition-normal);
}

.navbar-brand {
  font-family: var(--font-family-headings);
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-primary);
}

.nav-link {
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-secondary);
}

.navbar-toggler {
  border: 1px solid var(--color-border);
}

.navbar-toggler:focus {
  outline: none;
  box-shadow: 0 0 0 0.25rem rgba(28, 100, 242, 0.25);
}

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  cursor: pointer;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: #6d28d9;
  transform: translateY(-1px);
}

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

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

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

.card-custom {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  height: 100%;
}

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

.card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.card-text {
  color: var(--color-text-light);
}

.row[class*='g-'] > [class*='col-']:has([class*='card']) {
  display: flex !important;
  flex-direction: column !important;
}

[class*='card'] {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.form-control-custom {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}

.form-control-custom:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
}

.form-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-background);
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.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"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
  opacity: 0.5;
}

.swiper {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  display: flex;
  justify-content: center;
  align-items: center;
}

.swiper-pagination-bullet-active {
  background: var(--color-accent);
}

@media (min-width: 768px) {
  .container-custom {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  h1 { font-size: 4.5rem; }
  h2 { font-size: 3.75rem; }
  h3 { font-size: 2.5rem; }
}

@media (min-width: 1024px) {
  .container-custom {
    max-width: 1200px;
  }

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

@media (max-width: 767.98px) {
  .hero {
    padding: var(--space-2xl) 0;
  }

  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
}

* {
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card-custom,
.btn,
.nav-link {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

body,
h1, h2, h3, h4, h5, h6,
p, .card-text, .form-label {
  color: var(--color-text);
  text-shadow: none; 
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.bg-primary { background-color: var(--color-primary) !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-0 { margin-top: 0 !important; }

.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  padding: var(--space-lg) 0;
  text-align: center;
}

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

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