/* 
   Reddit Finder Website Style
   - Minimalist & Aesthetic Design
   - Reddit-inspired Color Palette
   - Mobile-First Responsive
*/

/* CSS Reset and Variables */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Reddit Color Palette */
    --color-primary: #FF4500; /* Reddit Orange-Red */
    --color-primary-dark: #D93A00;
    --color-secondary: #0079D3; /* Reddit Blue */
    
    /* Light Theme */
    --bg-primary: #F6F7F8;
    --bg-secondary: #FFFFFF;
    --text-primary: #1A1A1B;
    --text-secondary: #878A8C;
    --border-color: #DAE0E6;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-sans: sans-serif;
    
    /* Spacing & Sizing */
    --container-width: 1200px;
    --nav-height: 70px;
    
    /* Border Radius */
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: 250ms ease-in-out;
}

[data-theme="dark"] {
    /* Dark Theme Colors */
    --bg-primary: #1A1A1B;
    --bg-secondary: #272729;
    --text-primary: #D7DADC;
    --text-secondary: #818384;
    --border-color: #343536;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family), var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition), color var(--transition);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 4rem;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color var(--transition), border-color var(--transition);
}

[data-theme="dark"] .navbar {
    background-color: rgba(26, 26, 27, 0.8);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-logo {
    width: 32px;
    height: 32px;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.nav-button:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.support-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.support-button:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(255, 69, 0, 0.2);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-highlight {
    color: var(--color-primary);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

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

.hero-visual {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.hero-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
}

/* New App Preview Styles */
.app-preview {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    margin: 0 auto;
}

.app-header {
    padding: 0.75rem;
    text-align: center;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.app-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.app-search-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: var(--radius-md);
}

.app-search-bar svg {
    color: var(--text-secondary);
}

.app-search-bar input {
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    width: 100%;
}

.app-post {
    padding: 1rem;
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.post-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.post-title {
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.post-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.post-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}


/* Features Section */
#features {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-secondary);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: var(--text-secondary);
}

/* Footer Styles */
.footer {
    padding: 3rem 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo {
    width: 32px;
    height: 32px;
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

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

.footer-social {
    display: flex;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: color var(--transition);
}

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

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Timeline (Changelog) Styles */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 2rem auto;
    padding-left: 2rem;
    border-left: 2px solid var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -2.6rem;
    top: 0.25rem;
    width: 1rem;
    height: 1rem;
    background-color: var(--color-primary);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
}

.timeline-content {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.timeline-version {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.timeline-details {
    list-style: none;
    padding-left: 0;
}

.timeline-details li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.timeline-details li::before {
    content: '✓';
    color: var(--color-primary);
    margin-right: 0.5rem;
    font-weight: bold;
}

/* FAQ Section - Redesigned */
.faq {
    padding: 6rem 0;
}

.faq-list {
    max-width: 800px;
    margin: 2rem auto 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    background: none;
    border: none;
    padding: 1.5rem;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: background-color var(--transition);
}

.faq-question:hover {
    background-color: var(--bg-primary);
}

.faq-icon {
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
    color: var(--text-secondary);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.faq-item.open .faq-answer {
    padding-bottom: 1.5rem;
    max-height: 200px;
    transition: max-height 0.5s ease-in, padding-bottom 0.5s ease-in;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .nav-actions .support-button span:last-child,
    .nav-actions .nav-title {
        display: none;
    }
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 1000;
}

.scroll-to-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}