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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --dark-bg: #0a0e27;
    --darker-bg: #060914;
    --light-text: #ffffff;
    --gray-text: #a0aec0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo-icon {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 100px 20px 60px;
}

.stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 60px 70px, white, transparent),
        radial-gradient(1px 1px at 50px 50px, white, transparent),
        radial-gradient(1px 1px at 130px 80px, white, transparent),
        radial-gradient(2px 2px at 90px 10px, white, transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: twinkle 5s ease-in-out infinite;
    opacity: 0.5;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--gray-text);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid var(--primary-color);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--gray-text);
    animation: bounce 2s infinite;
}

.arrow-down {
    width: 20px;
    height: 20px;
    border-left: 2px solid var(--gray-text);
    border-bottom: 2px solid var(--gray-text);
    transform: rotate(-45deg);
    margin: 10px auto;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Section Styles */
section {
    padding: 100px 20px;
}

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

.section-header h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-divider {
    width: 100px;
    height: 4px;
    background: var(--gradient-1);
    margin: 0 auto;
    border-radius: 2px;
}

.section-subtitle {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: var(--gray-text);
}

/* About Section */
.about {
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--gray-text);
    font-size: 1.1rem;
}

.about-text .lead {
    font-size: 1.3rem;
    color: var(--light-text);
    font-weight: 500;
}

.cosmic-sphere {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.orbit-1 {
    width: 100px;
    height: 100px;
    animation-duration: 10s;
}

.orbit-2 {
    width: 180px;
    height: 180px;
    animation-duration: 15s;
}

.orbit-3 {
    width: 260px;
    height: 260px;
    animation-duration: 20s;
}

.center-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: var(--gradient-1);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.8);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* Types Section */
.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.type-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.type-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

.type-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.type-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.type-card > p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.type-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.type-details h4 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.type-details p {
    color: var(--gray-text);
    font-size: 0.95rem;
}

/* Fine-Tuning Section */
.fine-tuning {
    background: var(--darker-bg);
}

.constants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.constant-card {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.constant-card:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.constant-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.constant-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.constant-card p {
    color: var(--gray-text);
    font-size: 0.95rem;
}

/* Implications Section */
.implications-content {
    max-width: 900px;
    margin: 0 auto;
}

.implication-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s;
}

.implication-item:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.08);
}

.implication-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.implication-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.implication-text p {
    color: var(--gray-text);
    font-size: 1.05rem;
}

/* Explore Section */
.explore {
    background: var(--darker-bg);
}

.explore-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.controls {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.control-group {
    margin-bottom: 2rem;
}

.control-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--light-text);
}

.control-group input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-1);
    cursor: pointer;
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-1);
    cursor: pointer;
    border: none;
}

.value {
    display: inline-block;
    margin-top: 0.5rem;
    color: var(--accent-color);
    font-weight: 600;
}

.reset-btn {
    width: 100%;
    margin-top: 1rem;
}

.visualization {
    position: relative;
}

#universe-canvas {
    width: 100%;
    height: 400px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.universe-status {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 20px #4ade80;
    animation: pulse-status 2s ease-in-out infinite;
}

.status-indicator.warning {
    background: #fbbf24;
    box-shadow: 0 0 20px #fbbf24;
}

.status-indicator.danger {
    background: #ef4444;
    box-shadow: 0 0 20px #ef4444;
}

@keyframes pulse-status {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Quotes Section */
.quotes {
    background: var(--dark-bg);
    padding: 80px 20px;
}

.quote-carousel {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    min-height: 200px;
}

.quote {
    text-align: center;
    opacity: 0;
    position: absolute;
    width: 100%;
    transition: opacity 0.5s;
    display: none;
}

.quote.active {
    opacity: 1;
    position: relative;
    display: block;
}

.quote-text {
    font-size: 1.8rem;
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    line-height: 1.6;
}

.quote-author {
    font-size: 1.2rem;
    color: var(--accent-color);
    font-weight: 600;
}

.quote-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 2rem;
}

.quote-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s;
}

.quote-dot.active {
    background: var(--primary-color);
    transform: scale(1.3);
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 60px 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: var(--light-text);
}

.footer-section p, .footer-section a {
    color: var(--gray-text);
    line-height: 2;
}

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

.footer-section a {
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-text);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .about-content,
    .explore-content {
        grid-template-columns: 1fr;
    }

    .types-grid,
    .constants-grid {
        grid-template-columns: 1fr;
    }

    .implication-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .implication-number {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .quote-text {
        font-size: 1.3rem;
    }

    section {
        padding: 60px 20px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 15px 40px;
    }

    .type-card,
    .constant-card {
        padding: 1.5rem;
    }

    .cosmic-sphere {
        width: 200px;
        height: 200px;
    }
}