/* ========================================
   Bilcraft - Design System
   ======================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Inter:wght@300;400;500;600&display=swap');

/* CSS Variables */
:root {
  /* Colors */
  --color-cream: #F5F3EF;
  --color-cream-dark: #E8E4DC;
  --color-olive: #2C3E2D;
  --color-olive-light: #4A5D4B;
  --color-charcoal: #2D2D2D;
  --color-charcoal-light: #4A4A4A;
  --color-gold: #D4A574;
  --color-gold-dark: #B8956A;
  --color-white: #FFFFFF;
  --color-black: #1A1A1A;
  
  /* Typography */
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;
  --spacing-3xl: 8rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-charcoal);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-uppercase { 
  text-transform: uppercase; 
  letter-spacing: 0.1em;
  font-size: 0.75rem;
}

/* Container */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}

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

.btn-primary:hover {
  background-color: var(--color-olive-light);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-charcoal);
  border: 1px solid var(--color-charcoal);
}

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

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

.btn-white:hover {
  background-color: var(--color-cream);
  transform: translateY(-2px);
}

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: var(--transition-normal);
}

.header.scrolled {
  background-color: rgba(245, 243, 239, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--color-charcoal);
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-charcoal-light);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-charcoal);
  transition: var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-charcoal);
}

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

.nav-icons {
  display: flex;
  gap: var(--spacing-sm);
}

.nav-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.nav-icon:hover {
  background-color: var(--color-cream-dark);
}

.nav-icon svg {
  width: 20px;
  height: 20px;
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #3d4f3e 0%, #2c3e2d 50%, #1a2a1b 100%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--color-white);
  max-width: 800px;
  padding: 0 var(--spacing-md);
}

.hero-subtitle {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
}

.hero-title em {
  font-style: italic;
  font-weight: 400;
}

.hero-cta {
  margin-top: var(--spacing-xl);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-white);
  opacity: 0.7;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   Feature Cards Section
   ======================================== */
.features {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-cream);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  text-align: center;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-cream);
  border-radius: 50%;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-olive);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.feature-text {
  font-size: 0.9rem;
  color: var(--color-charcoal-light);
  margin-bottom: var(--spacing-md);
}

.feature-link {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-olive);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-link:hover {
  color: var(--color-olive-light);
  gap: 0.75rem;
}

/* ========================================
   Products Section
   ======================================== */
.products-section {
  padding: var(--spacing-3xl) 0;
}

.products-section.alt-bg {
  background-color: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-subtitle {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: var(--spacing-sm);
}

.section-title {
  margin-bottom: var(--spacing-sm);
}

.section-description {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-charcoal-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.product-card {
  position: relative;
  cursor: pointer;
}

.product-image {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--radius-md);
  background-color: var(--color-cream-dark);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

.product-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  padding: 0.25rem 0.75rem;
  background-color: var(--color-olive);
  color: var(--color-white);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
}

.product-info {
  padding: var(--spacing-md) 0;
  text-align: center;
}

.product-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.product-price {
  font-size: 0.9rem;
  color: var(--color-charcoal-light);
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ========================================
   Story Section
   ======================================== */
.story-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-olive);
  color: var(--color-white);
}

.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.story-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, #4a5d4b 0%, #2c3e2d 100%);
}

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

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

.story-subtitle {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: var(--spacing-md);
}

.story-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.story-text {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: var(--spacing-lg);
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-cream);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.testimonial-card {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.testimonial-stars {
  color: var(--color-gold);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-charcoal-light);
  margin-bottom: var(--spacing-md);
  font-style: italic;
}

.testimonial-author {
  font-weight: 600;
  font-size: 0.85rem;
}

/* ========================================
   Newsletter Section
   ======================================== */
.newsletter {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-charcoal);
  color: var(--color-white);
  text-align: center;
}

.newsletter-title {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.newsletter-text {
  opacity: 0.8;
  margin-bottom: var(--spacing-lg);
}

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

.newsletter-input {
  flex: 1;
  padding: 1rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--color-white);
  outline: none;
  transition: var(--transition-fast);
}

.newsletter-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
  border-color: var(--color-gold);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  display: block;
}

.footer-tagline {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.7;
}

.footer-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
  color: var(--color-gold);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link {
  font-size: 0.9rem;
  opacity: 0.7;
  transition: var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-gold);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  font-size: 0.8rem;
  opacity: 0.5;
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  transition: var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-gold);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

/* ========================================
   Animations
   ======================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  .nav-list {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .story-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2rem;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-cream);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu .nav-link {
  font-size: 1.5rem;
  text-transform: none;
  letter-spacing: 0.02em;
  font-family: var(--font-heading);
}

.mobile-menu-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}