/* ==========================================================================
   Grihalo - Premium Architecture Marketplace Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette - B&W Minimalist Theme */
  --color-bg: #FFFFFF;
  --color-bg-alt: #FAFAFA;
  --color-text-main: #000000;
  --color-text-muted: #52525B;
  --color-border: #E4E4E7;
  
  --color-primary: #000000; /* Black for buttons/accents */
  --color-primary-hover: #27272A;
  --color-accent: #F4F4F5; /* Light accent */
  --color-success: #10B981;
  
  /* Typography */
  --font-sans: 'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  
  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(255, 255, 255, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(255, 255, 255, 0.1), 0 2px 4px -1px rgba(255, 255, 255, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(255, 255, 255, 0.1), 0 4px 6px -2px rgba(255, 255, 255, 0.05);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
}

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

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

button {
  cursor: pointer;
  font-family: var(--font-sans);
  border: none;
  background: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

.section {
  padding: var(--space-lg) 0;
}

/* Navigation */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-icon {
  background-color: #FFC107;
  color: #000000;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  font-family: var(--font-display);
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav-logo-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text-main);
}

.nav-logo-subtitle {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--color-text-muted);
  margin-top: 2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  font-size: 0.95rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF; /* White text on black background */
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

/* Hero Section */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  background: radial-gradient(circle at 50% -20%, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  max-width: 800px;
  margin-inline: auto;
}

.hero p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-md);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

/* Search and Filters */
.search-bar-wrapper {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.5rem;
  display: flex;
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}

.search-bar-wrapper:focus-within {
  box-shadow: var(--shadow-md);
  border-color: #d1d5db;
}

.search-input {
  flex: 1;
  border: none;
  padding: 0.5rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  background: transparent;
}

.search-btn {
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 500;
}

.filters-wrapper {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.filter-chip {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover, .filter-chip.active {
  border-color: var(--color-primary);
  color: var(--color-text-main);
  background: var(--color-bg-alt);
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.product-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

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

.product-image-wrapper {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

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

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

.product-badges {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  gap: 0.5rem;
}

.badge {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.product-info {
  padding: 1.5rem;
}

.product-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--color-text-main);
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.product-price {
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.product-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.feature-card {
  padding: var(--space-md);
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.feature-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
}

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

.footer-brand h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--color-text-muted);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

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

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

.footer-col a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

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

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

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none; /* Add hamburger menu later */
  }
  
  .features-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero {
    padding: var(--space-lg) 0;
  }
}