/* Bean Buddy - LiquidMetal.ai Inspired Styling */

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

:root {
    /* LiquidMetal.ai Color Palette */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-blue: #4a9eff;
    --accent-coffee: #8b4513;
    --accent-coffee-light: #d2691e;
    --success: #00d084;
    --error: #ff4757;
    --border: #333333;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header & Navigation */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-coffee-light);
}

.nav-brand .subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-light);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color 0.3s ease;
    cursor: pointer;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

/* Hero Section */
.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-coffee-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: var(--font-weight-light);
}

/* Buttons */
.cta-primary, .cta-secondary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
}

.cta-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-coffee) 100%);
    color: var(--text-primary);
}

.cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(74, 158, 255, 0.3);
}

.cta-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.cta-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-blue);
}

/* System Status */
.system-status {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.system-status h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

.status-grid {
    display: grid;
    gap: 0.75rem;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-label {
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

.status-value {
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
}

.status-online {
    color: var(--success);
}

.status-offline {
    color: var(--error);
}

/* Main Sections */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.section h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: var(--font-weight-light);
}

/* Search Controls */
.search-controls {
    margin-bottom: 2rem;
}

.search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-bar input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-family);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.search-button, .page-button {
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    color: var(--text-primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    transition: background 0.3s ease;
}

.search-button:hover, .page-button:hover:not(:disabled) {
    background: #3a8eef;
}

.filters {
    display: flex;
    gap: 1rem;
}

.filters select {
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-family);
    cursor: pointer;
}

.filters select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Coffee Grid */
.coffee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.coffee-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.coffee-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-coffee-light);
}

.coffee-image {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.coffee-name {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.coffee-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    font-weight: var(--font-weight-light);
}

.coffee-price {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-coffee-light);
    margin-bottom: 1rem;
}

.similarity-score {
    background: rgba(74, 158, 255, 0.1);
    color: var(--accent-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    display: inline-block;
    margin-bottom: 1rem;
}

.coffee-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.favorite-button {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.favorite-button:hover {
    border-color: var(--error);
    color: var(--error);
}

.favorite-button.favorited {
    background: rgba(255, 71, 87, 0.1);
    border-color: var(--error);
    color: var(--error);
}

.view-button {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    transition: background 0.3s ease;
}

.view-button:hover {
    background: var(--accent-blue);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.page-button:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
}

#page-info {
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
}

/* Empty States & Loading */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-light);
}

.empty-state p {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-light);
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}

.footer p {
    color: var(--text-secondary);
    font-weight: var(--font-weight-light);
}

.footer a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .nav {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .search-bar {
        flex-direction: column;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .coffee-grid {
        grid-template-columns: 1fr;
    }
    
    .coffee-actions {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 2rem 1rem;
    }
    
    .nav {
        padding: 1rem;
    }
    
    .hero {
        padding: 2rem 1rem;
    }
    
    .hero-content h2 {
        font-size: 1.75rem;
    }
}