/* 
 * WeightLiftCalculator.com - Main Stylesheet
 * A clean, professional toolkit of fitness calculators
 */

/* ===== CSS RESET & BASE STYLES ===== */
:root {
  /* Main color palette - soft, minimal, professional */
  --primary-color: #3a86ff;
  --secondary-color: #4361ee;
  --accent-color: #4cc9f0;
  --text-color: #333333;
  --text-color-light: #666666;
  --background-color: #ffffff;
  --background-color-alt: #f5f7fa;
  --border-color: #e1e5eb;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --error-color: #f44336;
  
  /* Dark theme colors - softer, more professional dark theme */
  --dark-background: #1f2937;
  --dark-background-alt: #283548;
  --dark-text: #e5e7eb;
  --dark-text-light: #9ca3af;
  --dark-border: #374151;
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Border radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  
  /* Container widths */
  --container-max-width: 1200px;
  --container-narrow-width: 800px;
}

/* ===== ERROR NOTIFICATION SYSTEM ===== */
.error-notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  max-width: 400px;
  pointer-events: none;
}

.error-notification {
  background: white;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  margin-bottom: var(--spacing-md);
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  border-left: 4px solid var(--error-color);
  max-width: 100%;
  overflow: hidden;
}

.error-notification.show {
  opacity: 1;
  transform: translateX(0);
}

.error-notification.warning {
  border-left-color: var(--warning-color);
}

.error-notification.info {
  border-left-color: var(--primary-color);
}

.error-notification-content {
  padding: var(--spacing-lg);
}

.error-notification-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
}

.error-notification-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  margin: 0;
  line-height: 1.4;
}

.error-notification-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-color-light);
  cursor: pointer;
  padding: 0;
  margin-left: var(--spacing-md);
  line-height: 1;
  transition: color var(--transition-fast);
  flex-shrink: 0;
}

.error-notification-close:hover {
  color: var(--text-color);
}

.error-notification-message {
  color: var(--text-color-light);
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
}

/* Dark theme styles for error notifications */
body.dark-theme .error-notification {
  background: var(--dark-background-alt);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

body.dark-theme .error-notification-title {
  color: var(--dark-text);
}

body.dark-theme .error-notification-message {
  color: var(--dark-text-light);
}

body.dark-theme .error-notification-close {
  color: var(--dark-text-light);
}

body.dark-theme .error-notification-close:hover {
  color: var(--dark-text);
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .error-notification-container {
    top: 10px;
    right: 10px;
    left: 10px;
    max-width: none;
  }
  
  .error-notification {
    margin-bottom: var(--spacing-sm);
  }
  
  .error-notification-content {
    padding: var(--spacing-md);
  }
  
  .error-notification-title {
    font-size: 0.9rem;
  }
  
  .error-notification-message {
    font-size: 0.8rem;
  }
}

/* Apply dark theme when .dark-theme class is present on body */
body.dark-theme {
  --text-color: var(--dark-text);
  --text-color-light: var(--dark-text-light);
  --background-color: var(--dark-background);
  --background-color-alt: var(--dark-background-alt);
  --border-color: var(--dark-border);
}

/* Additional dark theme adjustments for cards and UI elements */
body.dark-theme .card {
  background-color: var(--dark-background-alt);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

body.dark-theme .btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--dark-border);
}

body.dark-theme .calculator-form,
body.dark-theme .results-panel {
  background-color: var(--dark-background-alt);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

body.dark-theme input,
body.dark-theme select,
body.dark-theme textarea {
  background-color: var(--dark-background);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

body.dark-theme input:focus,
body.dark-theme select:focus,
body.dark-theme textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(74, 134, 255, 0.3);
}

/* Box sizing for all elements */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base HTML elements */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

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

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

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

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

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

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

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

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

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: var(--container-narrow-width);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-lg {
  padding: var(--spacing-lg) 0; /* Reduced from xxl to lg for less height */
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -1rem;
}

.col {
  flex: 1;
  padding: 0 1rem;
}

/* Responsive columns */
@media (max-width: 768px) {
  .row {
    flex-direction: column;
  }
  
  .col {
    width: 100%;
    margin-bottom: var(--spacing-lg);
  }
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--background-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-md) 0;
  transition: background-color var(--transition-normal);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  display: flex;
  align-items: center;
}

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo span {
  font-size: 1.25rem;
  font-weight: 600;
  margin-left: var(--spacing-sm);
}

/* Override global anchor hover styles for site logo */
.site-logo:hover {
  text-decoration: none;
}

.site-logo:hover span {
  text-decoration: none;
}

/* ===== NAVIGATION ===== */
.main-nav ul {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
}

.main-nav li {
  margin: 0 var(--spacing-sm);
}

.main-nav a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-weight: 500;
  color: var(--text-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.main-nav a.active {
  color: var(--primary-color);
  font-weight: 600;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 5px 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--background-color);
    overflow: hidden;
    transition: height var(--transition-normal);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }
  
  .main-nav.active {
    height: auto;
  }
  
  .main-nav ul {
    flex-direction: column;
    padding: var(--spacing-md);
  }
  
  .main-nav li {
    margin: var(--spacing-xs) 0;
  }
  
  .main-nav a {
    padding: var(--spacing-sm) 0;
  }
  
  /* Hamburger to X animation */
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: var(--background-color-alt);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
  border-top: 1px solid var(--border-color);
}

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

.footer-section h4 {
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-color-light);
}

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

.social-links a {
  color: var(--text-color-light);
  transition: color var(--transition-fast);
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--secondary-color);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: var(--font-family-base);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23333' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

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

/* ===== CARDS ===== */
.card {
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  height: 100%;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--text-color-light);
  margin-bottom: var(--spacing-md);
}

/* ===== CALCULATOR SPECIFIC STYLES ===== */

/* Calculator Grid Layout */
.calculator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

@media (max-width: 768px) {
  .calculator-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* Calculator Cards */
.calculator-card {
  background-color: var(--background-color);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: all var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  position: relative;
}

.calculator-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

.calculator-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.calculator-card:hover::before {
  opacity: 1;
}

/* Calculator Icons */
.calculator-icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin: var(--spacing-lg) auto var(--spacing-md);
  display: block;
  border-radius: var(--border-radius-md);
  background-color: var(--background-color-alt);
  padding: var(--spacing-sm);
  transition: transform var(--transition-normal);
}

.calculator-card:hover .calculator-icon {
  transform: scale(1.1);
}

/* Calculator Card Content */
.calculator-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-color);
  margin: 0 var(--spacing-lg) var(--spacing-sm);
  text-align: center;
  line-height: 1.3;
}

.calculator-card p {
  color: var(--text-color-light);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 var(--spacing-lg) var(--spacing-lg);
  text-align: center;
  flex-grow: 1;
}

.calculator-card .btn {
  margin: 0 var(--spacing-lg) var(--spacing-lg);
  text-align: center;
  font-weight: 500;
  padding: 0.875rem 1.5rem;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
}

.calculator-card .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(58, 134, 255, 0.3);
}

/* Category Tabs */
.category-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  justify-content: center;
}

.category-tab {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--border-color);
  background-color: var(--background-color);
  color: var(--text-color);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
  font-size: 0.95rem;
}

.category-tab:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.category-tab.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Search Box */
.search-box {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.search-box input {
  width: 100%;
  padding: 0.875rem 3rem 0.875rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.1);
}

.search-box button {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-color-light);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  transition: color var(--transition-fast);
}

.search-box button:hover {
  color: var(--primary-color);
}

/* Dark theme adjustments for calculator cards */
body.dark-theme .calculator-card {
  background-color: var(--dark-background-alt);
  border-color: var(--dark-border);
}

body.dark-theme .calculator-card:hover {
  border-color: var(--primary-color);
}

body.dark-theme .calculator-icon {
  background-color: var(--dark-background);
}

body.dark-theme .category-tab {
  background-color: var(--dark-background-alt);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

body.dark-theme .category-tab:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

body.dark-theme .search-box input {
  background-color: var(--dark-background-alt);
  border-color: var(--dark-border);
  color: var(--dark-text);
}

.calculator-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.calculator-form {
  background-color: var(--background-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.results-panel {
  background-color: var(--background-color-alt);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

@media (min-width: 769px) {
  .results-panel {
    position: sticky;
    top: 100px;
  }
}

.result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.strength-rating {
  display: flex;
  margin-bottom: var(--spacing-md);
}

.star {
  color: #ccc;
  font-size: 1.5rem;
  margin-right: 2px;
}

.star.filled {
  color: #ffc107;
}

.strength-level {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.novice { color: #4caf50; }
.intermediate { color: #2196f3; }
.advanced { color: #ff9800; }
.elite { color: #f44336; }

.result-explanation {
  margin-bottom: var(--spacing-md);
}

.related-calculators {
  margin-top: var(--spacing-lg);
}

.related-calculators h4 {
  margin-bottom: var(--spacing-sm);
}

.related-calculators ul {
  list-style: none;
  padding: 0;
}

.related-calculators li {
  margin-bottom: var(--spacing-xs);
}

/* ===== TABLES ===== */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-md);
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.table th,
.table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
  word-wrap: break-word;
}

.table th {
  background-color: var(--background-color-alt);
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table td {
  font-size: 0.95rem;
  color: var(--text-color);
}

.table tbody tr:hover {
  background-color: var(--background-color-alt);
}

.table-responsive {
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
}

/* Dark theme table styles */
body.dark-theme .table {
  background-color: var(--dark-background-alt);
}

body.dark-theme .table th {
  background-color: var(--dark-background);
  color: var(--dark-text);
  border-bottom-color: var(--dark-border);
}

body.dark-theme .table td {
  color: var(--dark-text);
  border-bottom-color: var(--dark-border);
}

body.dark-theme .table tbody tr:hover {
  background-color: var(--dark-background);
}

/* ===== RESULT CARDS AND SECTIONS ===== */
.result-card {
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
}

.result-card h4 {
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
  font-size: 1.1rem;
  font-weight: 600;
}

.result-section {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.result-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.formula-results {
  margin-bottom: var(--spacing-lg);
}

.formula-results h4 {
  margin-bottom: var(--spacing-md);
  color: var(--text-color);
  font-size: 1.1rem;
}

.formula-results ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.formula-results li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0;
}

.formula-results li:last-child {
  border-bottom: none;
}

.formula-results strong {
  color: var(--text-color);
  font-weight: 600;
}

.training-percentages {
  margin-bottom: var(--spacing-lg);
}

.percentage-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-sm);
}

.percentage-table th,
.percentage-table td {
  padding: 0.6rem 0.8rem;
  text-align: center;
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.percentage-table th {
  background-color: var(--background-color-alt);
  font-weight: 600;
  color: var(--text-color);
}

.percentage-table td {
  color: var(--text-color);
}

/* Dark theme result card styles */
body.dark-theme .result-card {
  background-color: var(--dark-background-alt);
  border-color: var(--dark-border);
}

body.dark-theme .result-section {
  border-bottom-color: var(--dark-border);
}

body.dark-theme .formula-results li {
  border-bottom-color: var(--dark-border);
}

body.dark-theme .percentage-table th {
  background-color: var(--dark-background);
  color: var(--dark-text);
  border-color: var(--dark-border);
}

body.dark-theme .percentage-table td {
  color: var(--dark-text);
  border-color: var(--dark-border);
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.theme-toggle:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

body.dark-theme .theme-toggle {
  background-color: #4361ee;
  border-color: rgba(255, 255, 255, 0.1);
}

body.dark-theme .theme-toggle:hover {
  background-color: #3a56d4;
  border-color: rgba(255, 255, 255, 0.2);
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-normal);
}

.theme-toggle:hover svg {
  transform: rotate(15deg);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-5 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-1 { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-5 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

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

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* ===== MEDIA QUERIES ===== */
/* Small devices (landscape phones) */
@media (min-width: 576px) {
  html {
    font-size: 16px;
  }
}

/* Medium devices (tablets) */
@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

/* Large devices (desktops) */
@media (min-width: 992px) {
  html {
    font-size: 17px;
  }
}

/* Extra large devices */
@media (min-width: 1200px) {
  html {
    font-size: 18px;
  }
}

/* ENHANCED HOMEPAGE STYLES */
.hero {
    background: #ffffff;
    color: var(--text-color);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Homepage Cards - 3x3 Grid Layout with Enhanced Dimensions */
.homepage-cards .card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: none;
    overflow: hidden;
    width: 100%;
    max-width: 320px; /* Consistent width for uniform appearance */
    min-height: 300px; /* Minimum height for consistent sizing */
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Distribute content evenly */
}

.homepage-cards .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.homepage-cards .card-img {
    width: 80px; /* Increased size for better visibility */
    height: 80px; /* Increased size for better visibility */
    object-fit: contain;
    margin: 1.5rem auto 1rem auto;
    display: block;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 12px; /* Increased padding for better proportion */
    flex-shrink: 0; /* Prevent image from shrinking */
    max-width: 80px; /* Ensure consistent maximum size */
    max-height: 80px; /* Ensure consistent maximum size */
}

.homepage-cards .card-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center; /* Center all content */
}

.homepage-cards .card-title {
    font-size: 1.2rem; /* Consistent font size */
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #2c3e50;
    line-height: 1.3;
    text-align: center;
    flex-shrink: 0; /* Prevent title from shrinking */
}

.homepage-cards .card-text {
    font-size: 0.95rem; /* Consistent text size */
    color: #6c757d;
    line-height: 1.4;
    margin-bottom: 1rem;
    flex: 1;
    text-align: center;
    display: -webkit-box;
    -webkit-line-clamp: 3; /* Allow 3 lines for consistent description length */
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 4.2rem; /* Ensure consistent text area height */
}

.homepage-cards .btn {
    font-size: 0.9rem; /* Consistent button text */
    padding: 0.6rem 1.2rem; /* Uniform button padding */
    border-radius: 6px;
    font-weight: 500;
    margin-top: auto;
    align-self: center;
    min-width: 140px;
}

/* 3x3 Grid Layout - Perfect Alignment */
.homepage-cards .row {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Exactly 3 columns */
    grid-template-rows: repeat(3, auto); /* Auto-sizing rows for consistent height */
    gap: 2rem; /* Consistent gap for professional spacing */
    justify-items: center;
    align-items: stretch; /* Ensure all cards have equal height */
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem; /* Add padding for better edge spacing */
}

/* Category Cards - Improved Styling */
.category-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Section Styling */
.section {
    padding: 3rem 0;
    /* Removed background colors to match website theme */
}

/* CTA Section - Dynamic Theming */
.bg-primary {
    background: #ffffff !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color);
}

.bg-primary .container {
    padding: 2rem 0; /* Reduced padding for less height */
}

/* Light theme CTA colors */
body:not(.dark-theme) .bg-primary {
    background: #ffffff !important;
    color: var(--text-color) !important;
}

/* Dark theme CTA colors */
body.dark-theme .bg-primary {
    background: var(--card-background) !important;
    color: var(--text-color) !important;
}

/* Enhanced Button Styles */
.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-lg:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Responsive improvements for 3x3 Grid - Perfect Alignment */
@media (max-width: 1024px) {
    .homepage-cards .row {
        grid-template-columns: repeat(2, 1fr); /* 2 columns on tablets */
        grid-template-rows: auto;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .homepage-cards .card {
        max-width: 300px;
        min-height: 280px;
    }
}

@media (max-width: 768px) {
    .homepage-cards .row {
        grid-template-columns: repeat(2, 1fr); /* 2 columns on small tablets */
        gap: 1rem;
        padding: 0 0.5rem;
    }
    
    .homepage-cards .card {
        max-width: 260px;
        min-height: 260px;
    }
    
    .homepage-cards .card-img {
        width: 70px; /* Increased from 50px for better visibility */
        height: 70px; /* Increased from 50px for better visibility */
        margin: 1rem auto 0.75rem auto;
        padding: 10px; /* Added padding for better proportion */
        border-radius: 8px; /* Added border-radius for consistency */
        max-width: 70px; /* Ensure consistent maximum size */
        max-height: 70px; /* Ensure consistent maximum size */
    }
    
    .homepage-cards .card-title {
        font-size: 1.1rem;
    }
    
    .homepage-cards .card-text {
        font-size: 0.85rem;
        min-height: 3.6rem;
    }
}

@media (max-width: 480px) {
    .homepage-cards .row {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 1rem;
        padding: 0;
    }
    
    .homepage-cards .card {
        max-width: 100%;
        min-height: 240px;
    }
    
    .homepage-cards .card-img {
        width: 60px; /* Increased from 45px for better visibility */
        height: 60px; /* Increased from 45px for better visibility */
        padding: 8px; /* Added padding for better proportion */
        border-radius: 6px; /* Added border-radius for consistency */
        max-width: 60px; /* Ensure consistent maximum size */
        max-height: 60px; /* Ensure consistent maximum size */
    }
    
    .homepage-cards .card-title {
        font-size: 1rem;
    }
    
    .homepage-cards .card-text {
        font-size: 0.8rem;
        -webkit-line-clamp: 2;
        min-height: 2.4rem;
    }
    
    .homepage-cards .btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
        min-width: 120px;
    }
}

/* Dark Theme Adjustments */
body.dark-theme .hero {
    background: #ffffff;
    color: var(--text-color);
}

body.dark-theme .homepage-cards .card {
    background: #2d3748;
    border: 1px solid #4a5568;
}

body.dark-theme .homepage-cards .card-title {
    color: #e2e8f0;
}

body.dark-theme .homepage-cards .card-text {
    color: #a0aec0;
}

body.dark-theme .homepage-cards .card-img {
    background: #4a5568;
}

body.dark-theme .category-card {
    background: #2d3748;
    border-color: #4a5568;
}

/* BLOG ARTICLE STYLES - COMPACT DESIGN */

/* Featured Article - Compact */
.featured-article {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
    overflow: hidden;
    max-width: 800px; /* Limit width */
    margin-left: auto;
    margin-right: auto;
}

.featured-article-content {
    display: flex;
    align-items: center;
    padding: 1.5rem; /* Reduced padding */
    gap: 1.5rem;
}

.featured-article-image {
    flex-shrink: 0;
    width: 120px; /* Smaller image */
    height: 120px;
}

.featured-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.featured-article-text {
    flex: 1;
}

.featured-article-text h2 {
    font-size: 1.4rem; /* Smaller title */
    margin-bottom: 0.5rem;
    line-height: 1.3;
    color: #2c3e50;
}

.featured-article-text p {
    font-size: 0.9rem; /* Smaller description */
    color: #6c757d;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

/* Article Grid - Compact Cards */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.article-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    max-width: 320px; /* Limit card width */
    margin: 0 auto;
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.article-img {
    width: 100%;
    height: 140px; /* Reduced height */
    object-fit: cover;
}

.article-content {
    padding: 1rem; /* Reduced padding */
}

.article-category {
    display: inline-block;
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem; /* Smaller category text */
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.article-content h3 {
    font-size: 1.1rem; /* Smaller title */
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    line-height: 1.3;
}

.article-content p {
    font-size: 0.85rem; /* Smaller description */
    color: #6c757d;
    line-height: 1.4;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2; /* Limit to 2 lines */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.75rem; /* Smaller meta text */
    color: #9ca3af;
}

.article-content .btn {
    font-size: 0.8rem; /* Smaller button */
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-weight: 500;
}

/* Blog Article Page Styles - Compact */
.blog-article {
    max-width: 800px; /* Limit article width */
    margin: 0 auto;
    padding: 1.5rem; /* Reduced padding */
}

.article-header {
    margin-bottom: 1.5rem; /* Reduced margin */
}

.article-header h1 {
    font-size: 2rem; /* Smaller main title */
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.article-subtitle {
    font-size: 1rem; /* Smaller subtitle */
    color: #6c757d;
    margin-bottom: 1rem;
}

.article-image {
    margin: 1rem 0; /* Reduced margins */
}

.article-image img {
    width: 100%;
    max-height: 300px; /* Limit image height */
    object-fit: cover;
    border-radius: 8px;
}

/* Related Articles - Compact */
.related-articles {
    margin-top: 2rem; /* Reduced margin */
    padding: 1.5rem; /* Reduced padding */
    background: #f8f9fa;
    border-radius: 8px;
}

.related-articles h2,
.related-articles h3 {
    font-size: 1.3rem; /* Smaller heading */
    margin-bottom: 1rem;
    color: #2c3e50;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem; /* Reduced gap */
}

.related-card {
    background: white;
    padding: 1rem; /* Reduced padding */
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.related-card h4 {
    font-size: 0.95rem; /* Smaller title */
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.related-card p {
    font-size: 0.8rem; /* Smaller text */
    color: #6c757d;
    margin-bottom: 0.5rem;
}

/* Responsive adjustments for articles */
@media (max-width: 768px) {
    .featured-article-content {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .featured-article-image {
        width: 100px;
        height: 100px;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .article-card {
        max-width: 100%;
    }
    
    .blog-article {
        padding: 1rem;
    }
}

/* Page Header Styles */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
    font-size: 0.875rem;
    color: var(--text-color-light);
    margin-bottom: 1rem;
}

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

.breadcrumb a:hover {
    text-decoration: underline;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--text-color-light);
    line-height: 1.5;
    margin-bottom: 0;
}

/* Table of Contents Styles */
.table-of-contents {
    background: var(--background-color-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.table-of-contents h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.table-of-contents ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.table-of-contents li {
    margin-bottom: 0.5rem;
}

.table-of-contents a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.5;
    transition: var(--transition-fast);
}

.table-of-contents a:hover {
    text-decoration: underline;
    color: var(--secondary-color);
}

/* Article Meta Improvements */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--background-color-alt);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    color: var(--text-color-light);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Article Content Improvements */
.blog-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    line-height: 1.7;
}

.blog-article h2 {
    font-size: 1.875rem;
    font-weight: 600;
    margin: 2.5rem 0 1rem 0;
    color: var(--text-color);
    line-height: 1.3;
}

.blog-article h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem 0;
    color: var(--text-color);
    line-height: 1.4;
}

.blog-article h4 {
    font-size: 1.25rem;
    font-weight: 500;
    margin: 1.5rem 0 0.5rem 0;
    color: var(--text-color);
    line-height: 1.4;
}

.blog-article p {
    margin-bottom: 1.25rem;
    color: var(--text-color);
    font-size: 1rem;
}

.blog-article ul,
.blog-article ol {
    margin: 1rem 0 1.25rem 1.5rem;
    color: var(--text-color);
}

.blog-article li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.blog-article strong {
    font-weight: 600;
    color: var(--text-color);
}

/* Section Spacing */
.blog-article section {
    margin-bottom: 3rem;
}

.blog-article section:last-child {
    margin-bottom: 0;
}

/* Table Styles */
.comparison-table {
    margin: 1.5rem 0;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--background-color-alt);
    font-weight: 600;
    color: var(--text-color);
}

.comparison-table td {
    color: var(--text-color);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .blog-article {
        padding: 1rem;
    }
    
    .blog-article h2 {
        font-size: 1.5rem;
    }
    
    .blog-article h3 {
        font-size: 1.25rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .table-of-contents {
        padding: 1rem;
    }
}

/* Dark Theme for Articles */
body.dark-theme .featured-article,
body.dark-theme .article-card,
body.dark-theme .related-card {
    background: #2d3748;
    border-color: #4a5568;
}

body.dark-theme .featured-article-text h2,
body.dark-theme .article-content h3,
body.dark-theme .related-card h4 {
    color: #e2e8f0;
}

body.dark-theme .featured-article-text p,
body.dark-theme .article-content p,
body.dark-theme .related-card p {
    color: #a0aec0;
}

body.dark-theme .article-category {
    background: #4a5568;
    color: #90cdf4;
}

body.dark-theme .related-articles {
    background: #374151;
}

/* Dark theme styles for sections */
body.dark-theme .section {
    background-color: var(--background-color);
    color: var(--text-color);
}

body.dark-theme .section-lg:not(.bg-primary) {
    background-color: var(--background-color);
    color: var(--text-color);
}

body.dark-theme .section.bg-light {
    background-color: var(--card-background) !important;
    color: var(--text-color) !important;
}

/* Homepage Article Cards - Match Calculator Card Proportions */
.section .row .col .card {
    max-width: 320px; /* Match calculator card width */
    min-height: 300px; /* Match calculator card height */
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.section .row .col .card .card-img {
    height: 120px; /* Smaller image height for better proportions */
    object-fit: cover;
    flex-shrink: 0;
}

.section .row .col .card .card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
    text-align: center;
}

.section .row .col .card .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    flex-shrink: 0;
}

.section .row .col .card .card-text {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    min-height: 4.2rem; /* Consistent text area height */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.section .row .col .card .btn {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    margin-top: auto;
}

/* Responsive adjustments for homepage article cards */
@media (max-width: 1024px) {
    .section .row .col .card {
        max-width: 280px;
        min-height: 280px;
    }
}

@media (max-width: 768px) {
    .section .row .col .card {
        max-width: 100%;
        min-height: 260px;
    }
    
    .section .row .col .card .card-img {
        height: 100px;
    }
    
    .section .row .col .card .card-text {
        min-height: 3.6rem;
    }
    
    /* Mobile calculator layout - stack vertically */
    .calculator-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .results-panel {
        position: static;
        top: auto;
    }
}

@media (max-width: 480px) {
    .section .row .col .card {
        min-height: 240px;
    }
    
    .section .row .col .card .card-img {
        height: 80px;
    }
    
    .section .row .col .card .card-content {
        padding: 1rem;
    }
    
    .section .row .col .card .card-text {
        min-height: 3rem;
    }
}