/*
Theme Name: CalculatorZones
Theme URI: https://calculatorzones.com
Description: A modern, minimal calculator website theme with blog functionality
Version: 1.0.0
Author: CalculatorZones
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: calculatorzones
*/

/* CSS Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --bg-gray: #f9fafb;
  --border-color: #e5e7eb;
  --blue-light: #dbeafe;
  --blue-bg: #eff6ff;
  --radius: 0.75rem;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: #fff;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header Styles */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-dark);
  font-size: 1.25rem;
  font-weight: 600;
}

.site-logo svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary-color);
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-navigation a {
  color: var(--text-gray);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.main-navigation a:hover,
.main-navigation a.current {
  color: var(--primary-color);
}

.search-bar {
  display: none;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-gray);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  width: 16rem;
}

@media (min-width: 768px) {
  .search-bar {
    display: flex;
  }
}

.search-bar svg {
  width: 1rem;
  height: 1rem;
  color: var(--text-gray);
}

.search-bar input {
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  font-size: 0.875rem;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(to bottom, var(--blue-bg), #fff);
  padding: 4rem 0;
  text-align: center;
}

.hero-section h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--text-gray);
  max-width: 42rem;
  margin: 0 auto;
}

/* Category Section */
.category-section {
  padding: 4rem 0;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.category-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--blue-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary-color);
}

.category-title {
  font-size: 1.875rem;
  font-weight: 600;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .calculator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .calculator-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.calculator-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-dark);
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calculator-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.calculator-card-icon {
  width: 3rem;
  height: 3rem;
  background: var(--blue-bg);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.calculator-card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary-color);
}

.calculator-card:hover .calculator-card-icon {
  background: var(--blue-light);
}

.calculator-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.calculator-card p {
  font-size: 0.875rem;
  color: var(--text-gray);
}

.calculator-card:hover h3 {
  color: var(--primary-color);
}

/* Calculator Page */
.calculator-page {
  max-width: 56rem;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.calculator-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.calculator-header-icon {
  width: 3rem;
  height: 3rem;
  background: var(--blue-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.calculator-header-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary-color);
}

.calculator-title h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.calculator-title p {
  color: var(--text-gray);
}

.calculator-form {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 3rem;
}

.form-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-gray);
  border: 1px solid #d1d5db;
  border-radius: var(--radius);
  font-size: 1rem;
  outline: none;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.calculate-button {
  width: 100%;
  background: var(--primary-color);
  color: #fff;
  border: none;
  padding: 0.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.calculate-button:hover {
  background: var(--primary-hover);
}

.result-box {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--blue-bg);
  border: 1px solid var(--blue-light);
  border-radius: var(--radius);
  text-align: center;
  display: none;
}

.result-box.show {
  display: block;
}

.result-label {
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.result-category {
  font-size: 1.125rem;
  color: var(--text-dark);
}

.explanation-section {
  background: var(--bg-gray);
  border-radius: var(--radius);
  padding: 2rem;
}

.explanation-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.explanation-section p {
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.explanation-section h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.explanation-section ul {
  margin-left: 1.5rem;
  color: var(--text-dark);
}

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

/* Blog Section */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3rem 0;
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  text-decoration: none;
  color: var(--text-dark);
}

.blog-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.blog-card-image {
  width: 100%;
  height: 12rem;
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card-content {
  padding: 1.5rem;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.blog-card:hover h3 {
  color: var(--primary-color);
}

.blog-card p {
  color: var(--text-gray);
  font-size: 0.875rem;
}

/* Single Post */
.single-post {
  max-width: 48rem;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.post-header {
  margin-bottom: 2rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-bottom: 1rem;
}

.post-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.post-content {
  line-height: 1.8;
  font-size: 1.0625rem;
}

.post-content h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin: 2rem 0 1rem;
}

.post-content h3 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content ul,
.post-content ol {
  margin-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

/* Footer */
.site-footer {
  background: var(--bg-gray);
  border-top: 1px solid var(--border-color);
  margin-top: 6rem;
}

.footer-content {
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer-brand svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary-color);
}

.footer-description {
  font-size: 0.875rem;
  color: var(--text-gray);
}

.footer-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

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

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

.footer-section a {
  color: var(--text-gray);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-gray);
}

/* Features Section */
.features-section {
  background: var(--bg-gray);
  padding: 4rem 0;
}

.features-header {
  text-align: center;
  margin-bottom: 3rem;
}

.features-header h2 {
  font-size: 1.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.features-header p {
  color: var(--text-gray);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.feature-icon {
  width: 4rem;
  height: 4rem;
  background: var(--blue-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.feature-icon svg {
  width: 2rem;
  height: 2rem;
  color: var(--primary-color);
}

.feature-item h3 {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.875rem;
  color: var(--text-gray);
}

/* Utility Classes */
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-8 { margin-top: 2rem; }
.text-center { text-align: center; }