/* BeanCrema Canada - Crema-Grain Design System */
:root {
  /* Color Palette */
  --roast-brown: #3B2F2F;
  --crema-gold: #C89F63;
  --slate: #7A9E9F;
  --linen: #F6F1E9;
  --copper: #B8621B;
  --cream-light: #F8F5F0;
  --coffee-dark: #2A1810;
  --steam: rgba(200, 159, 99, 0.1);
  --shadow: rgba(0, 0, 0, 0.24);
  
  /* Typography - Modular Scale */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.833rem;  /* 13px */
  --font-size-sm: 1rem;      /* 16px */
  --font-size-base: 1.2rem;  /* 19px */
  --font-size-lg: 1.5rem;    /* 24px */
  --font-size-xl: 1.875rem;  /* 30px */
  --font-size-2xl: 2.25rem;  /* 36px */
  --font-size-3xl: 3.1rem;   /* 50px */
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Grid */
  --max-width: 1200px;
  --gutter: 1.5rem;
  --grid-gap: var(--gutter);
  
  /* Card */
  --card-radius: 16px;
  --card-shadow: 0 12px 28px var(--shadow);
  --card-shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.32);
  
  /* Transitions */
  --transition-fast: 160ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--roast-brown);
  background: linear-gradient(135deg, var(--linen) 0%, var(--cream-light) 100%);
  min-height: 100vh;
}

/* Crema-Grain Background Animation */
.crema-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.crema-background::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: 
    radial-gradient(circle at 20% 30%, var(--steam) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--steam) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, var(--steam) 0%, transparent 50%),
    radial-gradient(circle at 60% 60%, var(--steam) 0%, transparent 50%),
    radial-gradient(circle at 90% 70%, var(--steam) 0%, transparent 50%);
  animation: crema-drift 60s ease-in-out infinite;
}

.steam-animation {
  position: absolute;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(45deg, transparent 40%, var(--steam) 50%, transparent 60%),
    linear-gradient(-45deg, transparent 40%, var(--steam) 50%, transparent 60%);
  animation: steam-rising 15s ease-in-out infinite;
}

@keyframes crema-drift {
  0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.3; }
  25% { transform: translate(10px, -15px) rotate(5deg); opacity: 0.5; }
  50% { transform: translate(-5px, -25px) rotate(-3deg); opacity: 0.4; }
  75% { transform: translate(-15px, -10px) rotate(-8deg); opacity: 0.6; }
}

@keyframes steam-rising {
  0% { transform: translateY(100vh) scale(0.8); opacity: 0; }
  20% { opacity: 0.8; }
  80% { opacity: 0.6; }
  100% { transform: translateY(-20vh) scale(1.2); opacity: 0; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}

h2 {
  font-size: var(--font-size-2xl);
}

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

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

/* Links */
a {
  color: var(--roast-brown);
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
}

a:hover {
  color: var(--copper);
}

a.link-pulse {
  position: relative;
}

a.link-pulse::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--crema-gold);
  transition: width var(--transition-normal);
}

a.link-pulse:hover::after {
  width: 100%;
}

/* Container & Grid */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.grid {
  display: grid;
  gap: var(--grid-gap);
}

.grid-12 {
  grid-template-columns: repeat(12, 1fr);
}

.grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(59, 47, 47, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(59, 47, 47, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--crema-gold);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav-item a {
  color: var(--linen);
  font-weight: 500;
  transition: color var(--transition-normal);
}

.nav-item a:hover,
.nav-item a.active {
  color: var(--crema-gold);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--linen);
  transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--coffee-dark) 0%, var(--roast-brown) 100%);
  color: var(--linen);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 70%, rgba(200, 159, 99, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(184, 98, 27, 0.1) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  animation: hero-fade-in 1.2s ease-out;
}

@keyframes hero-fade-in {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  color: var(--linen);
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  opacity: 0.9;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--crema-gold) 0%, var(--copper) 100%);
  color: var(--coffee-dark);
  padding: var(--space-md) var(--space-xl);
  border-radius: 50px;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
  box-shadow: 0 8px 25px rgba(200, 159, 99, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(200, 159, 99, 0.4);
  color: var(--coffee-dark);
}

/* Stats Section */
.stats {
  background: var(--linen);
  padding: var(--space-2xl) 0;
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
  background: white;
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
}

.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
}

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--crema-gold);
  display: block;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--roast-brown);
  margin-top: var(--space-xs);
}

/* Section Padding */
.section {
  padding: var(--space-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--crema-gold), var(--copper));
  border-radius: 2px;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.article-card {
  background: white;
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  position: relative;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.article-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-image {
  transform: scale(1.05);
}

.article-content {
  padding: var(--space-lg);
}

.article-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--roast-brown);
}

.article-excerpt {
  color: #666;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.read-more {
  color: var(--crema-gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: gap var(--transition-normal);
}

.read-more:hover {
  gap: var(--space-sm);
}

/* Categories Section */
.categories {
  background: var(--roast-brown);
  color: var(--linen);
  padding: var(--space-2xl) 0;
}

.categories .section-title {
  color: var(--linen);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.category-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--card-radius);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.category-card:hover {
  background: rgba(200, 159, 99, 0.2);
  border-color: var(--crema-gold);
  transform: translateY(-2px);
}

.category-icon {
  font-size: 3rem;
  color: var(--crema-gold);
  margin-bottom: var(--space-md);
}

.category-title {
  color: var(--linen);
  margin-bottom: var(--space-sm);
}

.category-description {
  opacity: 0.9;
  line-height: 1.6;
}

/* Newsletter Section */
.newsletter {
  background: linear-gradient(135deg, var(--crema-gold) 0%, var(--copper) 100%);
  color: var(--coffee-dark);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.newsletter h2 {
  color: var(--coffee-dark);
  margin-bottom: var(--space-md);
}

.newsletter p {
  margin-bottom: var(--space-xl);
  opacity: 0.9;
}

.newsletter-form {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  gap: var(--space-sm);
}

.newsletter-input {
  flex: 1;
  padding: var(--space-md);
  border: none;
  border-radius: 50px;
  font-size: var(--font-size-base);
  outline: none;
}

.newsletter-button {
  background: var(--coffee-dark);
  color: var(--linen);
  border: none;
  padding: var(--space-md) var(--space-xl);
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.newsletter-button:hover {
  background: var(--roast-brown);
  transform: translateY(-1px);
}

/* Footer */
.footer {
  background: var(--coffee-dark);
  color: var(--linen);
  padding: var(--space-2xl) 0 var(--space-lg) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  color: var(--crema-gold);
  margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section li {
  margin-bottom: var(--space-xs);
  opacity: 0.9;
}

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

.footer-section a {
  color: var(--linen);
  transition: color var(--transition-normal);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  text-align: center;
  opacity: 0.7;
}

/* Scroll Reveal Animation */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--crema-gold);
  color: var(--coffee-dark);
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--copper);
  transform: translateY(-2px);
}

/* Category Page Header */
.page-header {
  background: linear-gradient(135deg, var(--coffee-dark) 0%, var(--roast-brown) 100%);
  color: var(--linen);
  padding: 120px 0 var(--space-2xl) 0;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(200, 159, 99, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(184, 98, 27, 0.1) 0%, transparent 50%);
}

.page-title {
  color: var(--linen);
  position: relative;
  z-index: 2;
}

.page-description {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --gutter: 1rem;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--roast-brown);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--space-2xl);
    transition: left var(--transition-normal);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero h1 {
    font-size: var(--font-size-2xl);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  
  .stat-item {
    padding: var(--space-md);
  }
  
  .stat-number {
    font-size: var(--font-size-xl);
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: var(--font-size-xl);
  }
  
  .stat-number {
    font-size: var(--font-size-xl);
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--linen);
}

::-webkit-scrollbar-thumb {
  background: var(--crema-gold);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--copper);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--linen);
  border-radius: 50%;
  border-top-color: var(--crema-gold);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success States */
.success-message {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: var(--space-md);
  border-radius: var(--card-radius);
  text-align: center;
  margin-top: var(--space-md);
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
}

.success-message.show {
  opacity: 1;
  transform: translateY(0);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--crema-gold), var(--copper));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Card Hover Effects */
.card-hover {
  transition: all var(--transition-normal);
  cursor: pointer;
}

.card-hover:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--card-shadow-hover);
}

/* Icon Styles */
.icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.icon-lg {
  width: 32px;
  height: 32px;
}

.icon-xl {
  width: 48px;
  height: 48px;
}

/* Focus States for Accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--crema-gold);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .header,
  .back-to-top,
  .newsletter {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .article-card,
  .category-card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}