/* ============================================
   SUBNET CALCULATOR - DESIGN SYSTEM
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */

:root {
  /* Color Palette - Light Mode with Black & White */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #e9ecef;
  --color-bg-glass: rgba(255, 255, 255, 0.9);

  --color-accent-primary: #000000;
  --color-accent-secondary: #2d3748;
  --color-accent-gradient: linear-gradient(135deg, #000000 0%, #2d3748 100%);
  --color-accent-glow: rgba(0, 0, 0, 0.1);

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  --color-text-primary: #000000;
  --color-text-secondary: #2d3748;
  --color-text-muted: #6b7280;

  --color-border: rgba(0, 0, 0, 0.1);
  --color-border-focus: rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px var(--color-accent-glow);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-width-container: 1200px;
  --navbar-height: 70px;
  --footer-height: 80px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: #fafafa;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(0, 0, 0, 0.015) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 0, 0, 0.015) 0%, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

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

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

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */

.container {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-md);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-fast);
}

.navbar-brand:hover {
  transform: scale(1.05);
}

.navbar-icon {
  font-size: var(--font-size-2xl);
  filter: drop-shadow(0 0 10px var(--color-accent-glow));
}

.navbar-logo {
  height: 32px;
  width: auto;
  display: block;
}

.navbar-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.navbar-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-fast);
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  transition: width var(--transition-base);
}

.navbar-links a:hover {
  color: var(--color-text-primary);
}

.navbar-links a:hover::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  transition: transform var(--transition-fast);
  z-index: 1001;
}

.navbar-toggle:hover {
  transform: scale(1.1);
}

.navbar-toggle:active {
  transform: scale(0.95);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
  min-height: calc(100vh - var(--navbar-height) - var(--footer-height));
  padding: var(--spacing-3xl) 0;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  animation: fadeInUp 0.8s ease-out;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-lg);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.7;
}

/* ============================================
   CALCULATOR CARD
   ============================================ */

.calculator-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  animation: fadeInUp 0.8s ease-out 0.2s both;
  transition: box-shadow var(--transition-base);
}

.calculator-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), 0 2px 4px rgba(0, 0, 0, 0.06);
}

/* ============================================
   TABS
   ============================================ */

.tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0;
}

.tab-button {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
  font-weight: 500;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  font-family: var(--font-family);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tab-button::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent-primary);
  transition: width var(--transition-base);
  border-radius: 2px 2px 0 0;
}

.tab-button:hover {
  color: var(--color-text-secondary);
}

.tab-button.active {
  color: var(--color-text-primary);
  font-weight: 600;
}

.tab-button.active::after {
  width: 100%;
}

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
  display: block;
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

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

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: white;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: all var(--transition-base);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: calc(var(--spacing-lg) + 24px);
  cursor: pointer;
}

.form-select:hover {
  border-color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

/* Custom Select Buttons */
.custom-select-wrapper {
  display: flex;
  gap: var(--spacing-xs);
  width: 100%;
  background: var(--color-bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
}

.custom-select-button {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  min-height: 44px;
}

.custom-select-button:hover {
  background: rgba(0, 0, 0, 0.05);
}

.custom-select-button.active {
  background: white;
  color: var(--color-text-primary);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: var(--color-accent-primary);
  color: white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:focus {
  outline: none;
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--color-accent-glow);
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent-primary);
  background: var(--color-bg-secondary);
}

/* ============================================
   RESULTS TABLE
   ============================================ */

.results {
  margin-top: var(--spacing-2xl);
  animation: fadeIn 0.5s ease-out;
}

.results-title {
  font-size: var(--font-size-xl);
  margin-bottom: 0;
  text-align: center;
  font-weight: 700;
  color: var(--color-text-primary);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-md);
}

.btn-copy-all {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-accent-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-copy-all:hover {
  background: var(--color-accent-secondary);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-copy-all:active {
  transform: translateY(0);
}

.btn-copy-all svg {
  width: 18px;
  height: 18px;
}

.btn-copy-all.copied {
  background: var(--color-success);
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--spacing-md);
}

.results-table {
  width: 100%;
  min-width: 500px;
  border-collapse: separate;
  border-spacing: 0;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.results-table th,
.results-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
}

.results-table th {
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--color-border);
}

.results-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.results-table tbody tr:last-child {
  border-bottom: none;
}

.results-table tbody tr:hover {
  background: var(--color-bg-secondary);
}

.results-table td:first-child {
  font-weight: 600;
  color: var(--color-text-secondary);
}

.results-table td:last-child {
  font-family: 'Courier New', monospace;
  color: var(--color-accent-primary);
  font-weight: 500;
  position: relative;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: var(--spacing-sm);
  padding: 6px 8px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  vertical-align: middle;
}

.copy-btn:hover {
  background: #fafafa;
  transform: scale(1.05);
}



.copy-btn.copied {
  background: var(--color-success);
  color: white;
}

/* ============================================
   AD SECTION
   ============================================ */

.ad-section {
  margin: var(--spacing-3xl) 0;
  padding: var(--spacing-2xl);
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-2xl);
  text-align: center;
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.ad-placeholder {
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer-copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ============================================
   LEGAL PAGES
   ============================================ */

.legal-page {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.legal-page h1 {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.legal-page h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-accent-primary);
}

.legal-page h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.legal-page p,
.legal-page ul {
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.legal-page ul {
  padding-left: var(--spacing-xl);
}

.legal-page li {
  margin-bottom: var(--spacing-sm);
}

.legal-updated {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2xl);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

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

@media (max-width: 768px) {
  :root {
    --navbar-height: 60px;
    --spacing-3xl: 2rem;
  }

  .navbar-links {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 1000;
  }

  .navbar-links.active {
    max-height: 300px;
    opacity: 1;
  }

  .navbar-toggle {
    display: block;
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero p {
    font-size: var(--font-size-base);
  }

  .calculator-card {
    padding: var(--spacing-lg);
  }

  .tabs {
    flex-direction: row;
    gap: 0;
    border-bottom: none;
    margin-bottom: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    padding: 4px;
  }

  .tab-button {
    flex: 1;
    padding: var(--spacing-md);
    text-align: center;
    border-bottom: none;
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    position: relative;
    transition: all var(--transition-base);
    color: var(--color-text-muted);
  }

  .tab-button:last-child {
    border-right: none;
  }

  .tab-button.active {
    background: white;
    color: var(--color-text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }

  .tab-button.active::after {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .results-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .results-title {
    width: 100%;
    text-align: left;
    font-size: var(--font-size-lg);
  }

  .btn-copy-all {
    align-self: flex-start;
  }

  .results-table {
    font-size: var(--font-size-sm);
    min-width: 0;
    width: 100%;
    background: transparent;
    box-shadow: none;
  }

  .results-table thead {
    display: none;
  }

  .results-table tbody {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .results-table tr {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-md);
    align-items: start;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    margin: 0;
  }

  .results-table tr:last-child {
    border-bottom: none;
  }

  .results-table td {
    display: block;
    padding: 0;
    border: none;
    white-space: normal;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  .results-table td:first-child {
    font-weight: 600;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: 0;
    text-transform: none;
    letter-spacing: 0;
    padding-top: 2px;
  }

  .results-table td:last-child {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    font-family: 'Courier New', monospace;
    word-wrap: break-word;
    text-align: right;
  }

  .custom-select-button {
    font-size: var(--font-size-xs);
    padding: var(--spacing-sm);
    min-height: 48px;
    white-space: normal;
    text-align: center;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .ad-section {
    min-height: 150px;
    padding: var(--spacing-lg);
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
  display: none !important;
}

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

.mt-1 {
  margin-top: var(--spacing-md);
}

.mt-2 {
  margin-top: var(--spacing-lg);
}

.mt-3 {
  margin-top: var(--spacing-xl);
}

.mb-1 {
  margin-bottom: var(--spacing-md);
}

.mb-2 {
  margin-bottom: var(--spacing-lg);
}

.mb-3 {
  margin-bottom: var(--spacing-xl);
}