/*
Theme Name: GUS - Build Break Learn
Theme URI: https://guslearn.com
Author: GUS
Author URI: https://guslearn.com
Description: A modern tech-learning WordPress theme embodying the philosophy of Build. Break. Learn... Repeat. Designed for technology educators, makers, and continuous learners.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: gus-theme
Tags: blog, education, technology, two-columns, custom-colors, custom-menu, featured-images, threaded-comments, translation-ready

GUS Theme - Grow. Understand. Share.
*/

/* ====================================
   CSS VARIABLES - GUS Brand Colors
   ==================================== */
:root {
  /* Primary Colors */
  --gus-navy: #001F3F;
  --gus-white: #FFFFFF;
  --gus-accent-blue: #0074D9;
  --gus-orange: #f99434;
  
  /* Extended Palette */
  --gus-light-blue: #E6F2FF;
  --gus-gray: #F5F5F5;
  --gus-dark-gray: #333333;
  --gus-medium-gray: #666666;
  --gus-light-gray: #CCCCCC;
  
  /* Semantic Colors */
  --gus-success: #2ECC40;
  --gus-warning: #FF851B;
  --gus-error: #FF4136;
  
  /* Typography */
  --font-primary: 'OCR A Extended', 'Courier New', monospace;
  --font-secondary: Arial, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ====================================
   RESET & BASE STYLES
   ==================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-secondary);
  color: var(--gus-dark-gray);
  background-color: var(--gus-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ====================================
   TYPOGRAPHY
   ==================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  color: var(--gus-navy);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.5px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

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

/* ====================================
   LAYOUT STRUCTURE
   ==================================== */
.site-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.content-wrapper {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

/* ====================================
   HEADER
   ==================================== */
.site-header {
  background: linear-gradient(135deg, var(--gus-navy) 0%, #003366 100%);
  color: var(--gus-white);
  padding: var(--spacing-md) 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.site-logo img {
  height: 60px;
  width: auto;
}

.site-branding {
  display: flex;
  flex-direction: column;
}

.site-title {
  font-family: var(--font-primary);
  font-size: 2rem;
  color: var(--gus-white);
  margin: 0;
  letter-spacing: 2px;
}

.site-tagline {
  font-family: var(--font-secondary);
  font-size: 0.9rem;
  color: var(--gus-light-blue);
  font-style: italic;
  margin: 0;
}

/* ====================================
   NAVIGATION
   ==================================== */
.main-navigation {
  display: flex;
  gap: var(--spacing-md);
}

.main-navigation ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  margin: 0;
  padding: 0;
}

.main-navigation a {
  color: var(--gus-white);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.main-navigation a:hover,
.main-navigation a:focus {
  background-color: var(--gus-accent-blue);
  text-decoration: none;
  transform: translateY(-2px);
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero-section {
  background: linear-gradient(135deg, var(--gus-navy) 0%, var(--gus-accent-blue) 100%);
  color: var(--gus-white);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section::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"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/><path d="M50,10 A40,40 0 0,1 90,50" fill="none" stroke="rgba(255,255,255,0.15)" stroke-width="2"/></svg>');
  background-size: 200px 200px;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-primary);
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gus-white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--gus-light-blue);
}

.hero-cta {
  display: inline-block;
  background-color: var(--gus-white);
  color: var(--gus-navy);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 50px;
  font-family: var(--font-primary);
  font-weight: 700;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-cta:hover {
  background-color: var(--gus-accent-blue);
  color: var(--gus-white);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

/* ====================================
   CONTENT SECTIONS
   ==================================== */
.gus-section {
  padding: var(--spacing-lg) 0;
}

.gus-section-title {
  font-family: var(--font-primary);
  color: var(--gus-navy);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.gus-section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--gus-accent-blue), var(--gus-navy));
  border-radius: 2px;
}

/* ====================================
   CARDS & POST LAYOUT
   ==================================== */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.post-card {
  background: var(--gus-white);
  border: 2px solid var(--gus-light-gray);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 116, 217, 0.2);
  border-color: var(--gus-accent-blue);
}

.post-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 3px solid var(--gus-accent-blue);
}

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

.post-card-title {
  font-family: var(--font-primary);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.post-card-title a {
  color: var(--gus-navy);
  text-decoration: none;
}

.post-card-title a:hover {
  color: var(--gus-accent-blue);
}

.post-card-meta {
  font-size: 0.85rem;
  color: var(--gus-medium-gray);
  margin-bottom: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-sm);
}

.post-card-excerpt {
  color: var(--gus-dark-gray);
  line-height: 1.6;
}

.post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.post-tag {
  background-color: var(--gus-light-blue);
  color: var(--gus-navy);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-primary);
}

/* ====================================
   SIDEBAR
   ==================================== */
.sidebar {
  background-color: var(--gus-gray);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--gus-accent-blue);
}

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

.widget-title {
  font-family: var(--font-primary);
  color: var(--gus-navy);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--gus-accent-blue);
}

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

.widget li {
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--gus-light-gray);
}

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

/* ====================================
   FOOTER
   ==================================== */
.site-footer {
  background-color: var(--gus-navy);
  color: var(--gus-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-section h3 {
  font-family: var(--font-primary);
  color: var(--gus-white);
  margin-bottom: var(--spacing-sm);
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--gus-light-blue);
  font-size: 0.9rem;
}

.gus-cycle {
  font-family: var(--font-primary);
  font-style: italic;
  color: var(--gus-accent-blue);
}

/* ====================================
   BUTTONS
   ==================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 4px;
  font-family: var(--font-primary);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--gus-navy);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 116, 217, 0.3);
}

.btn-secondary {
  background-color: var(--gus-white);
  color: var(--gus-navy);
  border: 2px solid var(--gus-navy);
}

.btn-secondary:hover {
  background-color: var(--gus-navy);
  color: var(--gus-white);
}

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (max-width: 1024px) {
  .content-wrapper {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    order: 2;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .header-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .main-navigation ul {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .post-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.accent-text {
  color: var(--gus-accent-blue);
}

.navy-text {
  color: var(--gus-navy);
}

/* ====================================
   CYCLE INDICATOR (Build/Break/Learn)
   ==================================== */
.cycle-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-primary);
  font-size: 0.85rem;
  color: var(--gus-medium-gray);
}

.cycle-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.cycle-build { background-color: var(--gus-accent-blue); }
.cycle-break { background-color: var(--gus-warning); }
.cycle-learn { background-color: var(--gus-success); }