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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: #0a0a0a;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

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

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

.logo-text {
    font-weight: 700;
    font-size: 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: #cccccc;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

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

.donate-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

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

.hero-canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

#heroCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-description {
    font-size: 1.25rem;
    color: #cccccc;
    margin-bottom: 40px;
    line-height: 1.6;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

/* Sections */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #cccccc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #999999;
    text-align: center;
    margin-bottom: 60px;
}

/* Features Section */
.features {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: #cccccc;
    line-height: 1.6;
}

/* Animations Section */
.animations {
    background: #0a0a0a;
    position: relative;
}

.animation-controls {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    min-height: 80px;
}

.control-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    z-index: 10;
}

#prevBtn {
    left: 0;
}

#nextBtn {
    right: 0;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.animation-info {
    text-align: center;
    min-width: 300px;
}

.animation-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.animation-info p {
    color: #cccccc;
    font-size: 1.1rem;
}

.animation-showcase {
    position: relative;
    max-width: 900px;
    margin: 0 auto 30px auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

#showcaseCanvas {
    width: 100%;
    height: 500px;
    display: block;
}

.animation-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.animation-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
}

.animation-btn:hover,
.animation-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    transform: translateY(-2px);
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 10px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Download Section */
.download {
    background: #1a1a1a;
    padding: 100px 0;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.download-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.browser-icon {
    color: #667eea;
    margin-bottom: 20px;
}

.download-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.download-card p {
    color: #cccccc;
    margin-bottom: 30px;
}

.download-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.installation-guide {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.installation-guide h3 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.guide-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.guide-tab {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #cccccc;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.guide-tab.active,
.guide-tab:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.guide-panel {
    display: none;
}

.guide-panel.active {
    display: block;
}

.guide-panel ol {
    max-width: 600px;
    margin: 0 auto;
}

.guide-panel li {
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #cccccc;
    font-size: 1.1rem;
}

.guide-panel li:last-child {
    border-bottom: none;
}

.guide-panel code {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', monospace;
    color: #667eea;
}

/* Support Section */
.support {
    background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    padding: 100px 0;
    text-align: center;
}

.support-content h2 {
    margin-bottom: 20px;
}

.support-content p {
    color: #cccccc;
    margin-bottom: 30px;
}

.support-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Footer */
.footer {
    background: #0a0a0a;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: start;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

.footer-logo span {
    font-weight: 700;
    font-size: 20px;
    color: white;
}

.footer-left p {
    color: #cccccc;
    max-width: 400px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: #999999;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    margin: 10% auto;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    position: relative;
}

.modal-close {
    color: #cccccc;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    top: 20px;
    right: 25px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: white;
}

.modal-content h3 {
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.modal-content p {
    color: #cccccc;
    margin-bottom: 30px;
    line-height: 1.6;
}

.donation-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.donation-btn {
    display: inline-block;
    padding: 16px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    color: white;
}

.donation-btn.paypal {
    background: linear-gradient(135deg, #0070ba 0%, #003087 100%);
}

.donation-btn.kofi {
    background: linear-gradient(135deg, #ff5e5b 0%, #e8443a 100%);
}

.donation-btn.github {
    background: linear-gradient(135deg, #24292e 0%, #1b1f23 100%);
}

.donation-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 20px;
    }
    
    .nav-link {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .animation-controls {
        flex-direction: column;
        gap: 20px;
    }
    
    .download-options {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}