/* Convertathon.com - Main Stylesheet */

/* Color Variables */
:root {
  --dark-blue: #0D3B66;
  --light-blue: #4D9DE0;
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --dark-gray: #333333;
  --accent-blue: #1E6091;
}

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

body {
  font-family: 'Open Sans', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
}

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

a:hover {
  text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', Arial, sans-serif;
  margin-bottom: 1rem;
  color: var(--dark-blue);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header */
header {
  background-color: var(--dark-blue);
  color: var(--white);
  padding: 1rem 0;
}

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

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

.logo img {
  height: 40px;
  margin-right: 10px;
}

.logo h1 {
  color: var(--white);
  font-size: 1.8rem;
  margin-bottom: 0;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 1.5rem;
}

nav ul li a {
  color: var(--white);
  text-decoration: none;
}

nav ul li a:hover {
  color: var(--light-blue);
}

/* Main Navigation Tabs */
.main-tabs {
  background-color: var(--dark-blue);
  padding-bottom: 1rem;
}

.tabs-container {
  display: flex;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Firefox */
}

.tabs-container::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Edge */
}

.converter-tab {
  padding: 0.75rem 1.25rem;
  color: var(--white);
  text-decoration: none;
  border-radius: 4px 4px 0 0;
  margin-right: 2px;
  transition: background-color 0.3s;
}

.converter-tab:hover {
  background-color: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.converter-tab.active {
  background-color: var(--light-blue);
  color: var(--white);
}

/* Main Content */
main {
  padding: 2rem 0;
}

.page-title {
  text-align: center;
  margin-bottom: 2rem;
}

/* Converter Section */
.converter-section {
  background-color: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  margin-bottom: 2rem;
}

.converter-title {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--dark-blue);
}

.converter-container {
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .converter-container {
    flex-direction: row;
  }
}

.converter-column {
  flex: 1;
  padding: 1rem;
}

.input-group {
  margin-bottom: 1.5rem;
}

.input-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.swap-button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.swap-button button {
  background-color: var(--accent-blue);
  color: var(--white);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s;
}

.swap-button button:hover {
  background-color: var(--dark-blue);
}

/* Percentage Calculator */
.percentage-calculator {
  width: 100%;
}

.calculator-section {
  background-color: var(--light-gray);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.calculator-section h3 {
  margin-bottom: 1rem;
  color: var(--dark-blue);
}

.calculator-section .input-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.calculator-section .input-group input {
  width: 100px;
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.calculator-section .input-group select {
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.calculator-section button {
  background-color: var(--accent-blue);
  color: var(--white);
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

.calculator-section button:hover {
  background-color: var(--dark-blue);
}

/* Common Conversions */
.common-conversions {
  background-color: var(--light-gray);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.common-conversions h3 {
  margin-bottom: 1rem;
}

.common-conversions ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
  list-style: none;
}

.common-conversions ul li a {
  display: block;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.common-conversions ul li a:hover {
  background-color: rgba(77, 157, 224, 0.1);
  text-decoration: none;
}

/* App Download Section */
.app-download {
  background-color: var(--light-blue);
  color: var(--white);
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 2rem;
}

.app-download h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.app-download p {
  margin-bottom: 1.5rem;
}

.app-download-button {
  display: inline-block;
  background-color: var(--white);
  color: var(--dark-blue);
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: bold;
  transition: background-color 0.3s;
}

.app-download-button:hover {
  background-color: var(--light-gray);
  text-decoration: none;
}

/* Ad Spaces */
.ad-container {
  margin: 2rem 0;
  text-align: center;
}

.ad-container.horizontal {
  width: 100%;
  height: 90px;
  background-color: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.ad-container.sidebar {
  width: 300px;
  height: 250px;
  background-color: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  margin: 0 auto;
}

@media (min-width: 992px) {
  .ad-container.sidebar {
    margin: 0;
  }
}

/* Footer */
footer {
  background-color: var(--dark-blue);
  color: var(--white);
  padding: 2rem 0;
}

.footer-container {
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-section {
  margin-bottom: 1.5rem;
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: var(--light-blue);
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 767px) {
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  
  nav ul {
    margin-top: 1rem;
  }
  
  nav ul li {
    margin-left: 0;
    margin-right: 1rem;
  }
  
  .converter-container {
    flex-direction: column;
  }
  
  .swap-button {
    transform: rotate(90deg);
    margin: 1rem 0;
  }
  
  .common-conversions ul {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-3 {
  margin-bottom: 1.5rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mt-4 {
  margin-top: 2rem;
}