/* ===================================
   WORLD'S BEST AI TOOL - STYLES
   Black & White Base with Pink, Orange, Green Accents
   Product Hunt Inspired Design
   =================================== */

/* CSS Variables */
:root {
    /* Base Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-dark: #1a1a1a;
    --color-gray-medium: #333333;
    --color-gray-light: #666666;
    --color-gray-lighter: #999999;
    --color-gray-lightest: #e5e5e5;
    
    /* Accent Colors */
    --color-pink: #FF69B4;
    --color-orange: #FF6B35;
    --color-green: #00D9A3;
    
    /* Accent Variations */
    --color-pink-light: #FFB6D9;
    --color-orange-light: #FFB399;
    --color-green-light: #66ECC9;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-black);
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

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

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-lightest);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
}

.logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

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

.nav-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-gray-medium);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-links svg {
    width: 18px;
    height: 18px;
}

/* Hero Banner */
.hero-banner {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-gray-dark) 0%, var(--color-black) 100%);
}

.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-content h1 {
    color: var(--color-white);
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    color: var(--color-gray-lightest);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-orange) 100%);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--color-white);
}

.cta-button svg {
    width: 20px;
    height: 20px;
}

/* Main Content */
.main-content {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

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

.section-header h2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 2.5rem;
    color: var(--color-black);
}

.section-header h2 svg {
    width: 36px;
    height: 36px;
    color: var(--color-orange);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--color-gray-light);
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

/* Tool Card */
.tool-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-lightest);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    position: relative;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-pink);
}

.tool-card.featured {
    border: 3px solid var(--color-pink);
    background: linear-gradient(135deg, rgba(255, 105, 180, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
}

.tool-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-orange) 100%);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.tool-badge svg {
    width: 16px;
    height: 16px;
}

.tool-header {
    padding: var(--spacing-md);
}

.tool-screenshot {
    width: 100%;
    height: 200px;
    background-color: var(--color-gray-lightest);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.tool-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.tool-card:hover .tool-screenshot img {
    transform: scale(1.05);
}

.tool-info h3 {
    font-size: 1.5rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.stars {
    display: flex;
    gap: 2px;
}

.stars svg {
    width: 18px;
    height: 18px;
}

.star-filled {
    fill: var(--color-orange);
    stroke: var(--color-orange);
}

.star-half {
    fill: url(#half-star);
    stroke: var(--color-orange);
}

.stars svg:not(.star-filled):not(.star-half) {
    fill: none;
    stroke: var(--color-gray-lighter);
}

.rating-score {
    font-weight: 700;
    color: var(--color-black);
    font-size: 1.1rem;
}

.review-count {
    color: var(--color-gray-light);
    font-size: 0.9rem;
}

.tool-description {
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.tool-description p {
    color: var(--color-gray-medium);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-gray-lightest);
    color: var(--color-gray-medium);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.feature-tag:hover {
    background-color: var(--color-green);
    color: var(--color-white);
}

.feature-tag svg {
    width: 14px;
    height: 14px;
}

.tool-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-gray-lightest);
}

.visit-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: 100%;
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.visit-button:hover {
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-orange) 100%);
    color: var(--color-white);
    transform: translateY(-2px);
}

.visit-button svg {
    width: 18px;
    height: 18px;
}

/* Comments Section */
.comments-section {
    padding: var(--spacing-md);
    background-color: rgba(0, 0, 0, 0.02);
    border-top: 1px solid var(--color-gray-lightest);
}

.comments-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.comments-section h4 svg {
    width: 20px;
    height: 20px;
    color: var(--color-green);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.comment {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-lightest);
    transition: border-color var(--transition-fast);
}

.comment:hover {
    border-color: var(--color-green);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
}

.comment-header strong {
    color: var(--color-black);
    font-weight: 600;
}

.location {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--color-gray-light);
    font-size: 0.875rem;
}

.location svg {
    width: 14px;
    height: 14px;
}

.comment-rating {
    display: flex;
    gap: 2px;
    margin-left: auto;
}

.comment-rating svg {
    width: 14px;
    height: 14px;
}

.comment p {
    color: var(--color-gray-medium);
    font-size: 0.95rem;
    line-height: 1.6;
}

.load-more-comments {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: 100%;
    background-color: var(--color-white);
    color: var(--color-gray-medium);
    padding: var(--spacing-sm);
    border: 2px solid var(--color-gray-lightest);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.load-more-comments:hover {
    background-color: var(--color-gray-lightest);
    border-color: var(--color-gray-light);
    color: var(--color-black);
}

.load-more-comments:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.load-more-comments svg {
    width: 16px;
    height: 16px;
}

/* Footer */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

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

.footer-section h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: var(--color-gray-lighter);
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--color-gray-lighter);
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--color-pink);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-gray-dark);
    border-radius: 50%;
    color: var(--color-white);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-orange) 100%);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-dark);
}

.footer-bottom p {
    color: var(--color-gray-lighter);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .nav-links {
        gap: var(--spacing-md);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero-banner {
        height: 400px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .hero-content p {
        font-size: 0.9rem;
    }
    
    .cta-button {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .logo span {
        display: none;
    }
    
    .nav-links a span {
        display: none;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-card {
    animation: fadeIn 0.5s ease forwards;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* Print Styles */
@media print {
    .header,
    .footer,
    .cta-button,
    .visit-button,
    .load-more-comments {
        display: none;
    }
    
    .tool-card {
        page-break-inside: avoid;
        border: 1px solid var(--color-gray-light);
    }
}