/* Cosmic Sleep Landing Page - Core Styles */
/* Color Variables - Cosmic Theme */
:root {
    --primary: #121D42;      /* Dark Nebula */
    --secondary: #003B8B;    /* Deep Plasma Blue */
    --accent: #8758FF;       /* Galaxy Purple */
    --accent-glow: rgba(135, 88, 255, 0.7);
    --text-light: #FFFFFF;
    --text-muted: #B8C3E4;
    --background: #040912;   /* Starry Black */
    --card-bg: rgba(18, 29, 66, 0.8);
    --gradient-bg: linear-gradient(135deg, var(--primary) 0%, var(--background) 100%);
}

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

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: 'Segoe UI', 'Arial', sans-serif;
    background-color: var(--background);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100%;
    perspective: 1px;
    transform-style: preserve-3d;
}

/* Parallax Space Background */
.parallax-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.stars-small, .stars-medium, .stars-large, .nebula-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    will-change: transform;
}

.stars-small {
    background-image: radial-gradient(1px 1px at 20px 30px, var(--text-light), transparent),
                    radial-gradient(1px 1px at 40px 70px, var(--text-light), transparent),
                    radial-gradient(1px 1px at 50px 160px, var(--text-light), transparent),
                    radial-gradient(1px 1px at 90px 40px, var(--text-light), transparent),
                    radial-gradient(1px 1px at 130px 80px, var(--text-light), transparent),
                    radial-gradient(1px 1px at 160px 120px, var(--text-light), transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    opacity: 0.6;
}

.stars-medium {
    background-image: radial-gradient(1.5px 1.5px at 180px 150px, #FFFFFF, transparent),
                    radial-gradient(1.5px 1.5px at 300px 250px, #FFFFFF, transparent),
                    radial-gradient(1.5px 1.5px at 400px 350px, #FFFFFF, transparent),
                    radial-gradient(1.5px 1.5px at 500px 100px, #FFFFFF, transparent),
                    radial-gradient(1.5px 1.5px at 50px 200px, #FFFFFF, transparent),
                    radial-gradient(1.5px 1.5px at 250px 300px, #FFFFFF, transparent);
    background-repeat: repeat;
    background-size: 500px 500px;
    opacity: 0.5;
}

.stars-large {
    background-image: radial-gradient(2px 2px at 100px 50px, #FFFFFF, transparent),
                    radial-gradient(2px 2px at 200px 150px, #FFFFFF, transparent),
                    radial-gradient(2px 2px at 300px 250px, #FFFFFF, transparent),
                    radial-gradient(2px 2px at 400px 350px, #FFFFFF, transparent),
                    radial-gradient(2px 2px at 500px 450px, #FFFFFF, transparent),
                    radial-gradient(2px 2px at 600px 550px, #FFFFFF, transparent);
    background-repeat: repeat;
    background-size: 600px 600px;
    opacity: 0.4;
}

.nebula-layer {
    background-image: 
        radial-gradient(circle at 25% 40%, rgba(135, 88, 255, 0.25) 0%, transparent 30%),
        radial-gradient(circle at 75% 60%, rgba(0, 59, 139, 0.15) 0%, transparent 40%);
    opacity: 0.5;
    filter: blur(20px);
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(to right, var(--text-light), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 30px rgba(135, 88, 255, 0.2);
    animation: textGlow 3s ease-in-out infinite alternate;
}

@keyframes textGlow {
    0% { text-shadow: 0 0 30px rgba(135, 88, 255, 0.2); }
    100% { text-shadow: 0 0 50px rgba(135, 88, 255, 0.5); }
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #ffffff;
    position: relative;
    text-shadow: 0 0 15px var(--accent-glow);

}

h2:after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: var(--accent);
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 20px var(--accent-glow);
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

/* Buttons */
.cta-button {
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    color: var(--text-light);
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 20px rgba(135, 88, 255, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 25px rgba(135, 88, 255, 0.5);
}

.cta-button:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s;
    z-index: -1;
}

.cta-button:hover:before {
    left: 100%;
}

/* Navigation */
header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 100;
    padding: 1.5rem 0;
    background: rgba(4, 9, 18, 0.8);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-light);
    text-transform: lowercase;
    letter-spacing: 1px;
    background: linear-gradient(to right, var(--text-light), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

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

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s;
    box-shadow: 0 0 10px var(--accent-glow);
}

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

/* Section Styles */
section {
    position: relative;
    z-index: 1;
    overflow: hidden;
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-bg);
    z-index: -1;
}

#hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-right: 3rem;
}

.hero-content h1 {
    font-size: 3.8rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    position: relative;
    margin-top: 40px;
}

.hero-image img {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(135, 88, 255, 0.3);
    animation: float 6s ease-in-out infinite;
    position: relative;
    top: 40px;
}

.hero-image:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(135, 88, 255, 0.3) 0%, transparent 70%);
    z-index: -1;
    filter: blur(30px);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-40px); }
    100% { transform: translateY(0px); }
}

/* Animated Orbiting Dots */
.orbit-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: -1;
}

.orbit {
    position: absolute;
    border: 1px solid rgba(135, 88, 255, 0.2);
    border-radius: 50%;
}

.orbit-1 {
    width: 50vw;
    height: 50vw;
    top: 25%;
    right: -15%;
}

.orbit-2 {
    width: 70vw;
    height: 70vw;
    bottom: -30%;
    left: -20%;
}

.orbit-dot {
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px 2px var(--accent-glow);
}

/* Product Overview Section */
#product-overview {
    padding: 8rem 0;
    background: linear-gradient(to bottom, transparent, rgba(18, 29, 66, 0.5), transparent);
}

.features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    flex: 1;
    min-width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(135, 88, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(135, 88, 255, 0.2);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.feature-card:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(135, 88, 255, 0.15), transparent 70%);
    transition: transform 0.5s;
    z-index: -1;
    transform: scale(0);
    opacity: 0;
}

.feature-card:hover:before {
    transform: scale(1);
    opacity: 1;
}

/* How It Works Section */
#how-it-works {
    padding: 8rem 0;
    position: relative;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.8;
    line-height: 1;
    text-shadow: 0 0 15px var(--accent-glow);
}

.step-content h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.step:after {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 4rem;
    width: 1px;
    height: calc(100% + 3rem);
    background: linear-gradient(to bottom, var(--accent), transparent);
    z-index: -1;
}

.step:last-child:after {
    display: none;
}

/* Science Section */
#science {
    padding: 8rem 0;
    background: linear-gradient(to bottom, transparent, rgba(18, 29, 66, 0.5), transparent);
}

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

.science-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(135, 88, 255, 0.1);
}

.science-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(135, 88, 255, 0.3);
}

.science-image {
    height: 200px;
    overflow: hidden;
}

.science-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.science-card:hover .science-image img {
    transform: scale(1.1);
}

.science-content {
    padding: 1.5rem;
}

.learn-more {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: color 0.3s;
}

.learn-more:hover {
    color: var(--text-light);
}

/* Comparison Section */
#comparison {
    padding: 8rem 0;
}

.comparison-table {
    margin-top: 3rem;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

th, td {
    padding: 1rem 1.5rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
    background: var(--primary);
    color: var(--text-light);
    font-weight: 600;
}

td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--text-light);
}

.fa-check {
    color: #4CAF50;
}

.fa-times {
    color: #F44336;
}

/* Glowing details for comparison */
tbody tr:hover {
    background: rgba(135, 88, 255, 0.1);
}

/* Waitlist Section */
#waitlist {
    padding: 8rem 0;
    background: linear-gradient(to bottom, transparent, var(--primary));
    text-align: center;
    position: relative;
}

.google-form-container {
    max-width: 600px;
    margin: 3rem auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(135, 88, 255, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.google-form-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(135, 88, 255, 0.3);
}

.google-form-container iframe {
    width: 100%;
    min-height: 450px;
    border: none;
    display: block;
}

.form-disclaimer {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 1rem auto 0;
}

.form-link {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 1rem auto;
}

.form-link a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.form-link a:hover {
    color: var(--text-light);
    text-decoration: underline;
}

.success-message {
    color: var(--accent);
    font-weight: 600;
    padding: 1rem;
    border-radius: 50px;
    background: rgba(135, 88, 255, 0.1);
    border: 1px solid var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(135, 88, 255, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(135, 88, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(135, 88, 255, 0); }
}

.error-message {
    color: #FF6B6B;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid #FF6B6B;
    animation: shake 0.5s ease-in-out;
}

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

/* Footer */
footer {
    background: var(--primary);
    padding: 4rem 0 2rem;
    position: relative;
    z-index: 1;
}

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

.footer-logo p {
    margin-top: 1rem;
}

.footer-links, .footer-social {
    display: flex;
    flex-direction: column;
}

.footer-links a, .footer-social a {
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 0.8rem;
    transition: color 0.3s;
}

.footer-links a:hover, .footer-social a:hover {
    color: var(--accent);
}

.footer-links h4, .footer-social h4 {
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.social-icons a:hover {
    background: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(135, 88, 255, 0.4);
}

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

.disclaimer, .copyright {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.disclaimer {
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-content h1 {
        font-size: 3.2rem;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    #hero .container {
        flex-direction: column;
        text-align: center;
        max-width: 800px;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 3rem;
        max-width: 100%;
    }
    
    .hero-image {
        width: 100%;
        justify-content: center;
        margin-top: 60px;
    }
    
    .hero-image img {
        max-width: 80%;
        max-height: 400px;
        top: 0;
    }
    
    .step:after {
        left: 1rem;
    }
}

@media (max-width: 768px) {
    nav {
        justify-content: center;
    }
    .logo {
        margin: 0 auto;
    }
    .nav-links {
        display: none;
    }
    
    .feature-card {
        min-width: 100%;
    }
    
    .step {
        flex-direction: column;
        gap: 1rem;
    }
    
    .waitlist-form {
        flex-direction: column;
    }
    
    .waitlist-form input, .waitlist-form button {
        width: 100%;
    }
    
    .step:after {
        display: none;
    }
}

/* Extra mobile-friendly header size */
@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 1.7rem;
        word-break: break-word;
    }
}

/* Animation Utilities */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Particles */
.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background-color: var(--accent);
    border-radius: 50%;
    pointer-events: none;
}

/* Product Mask in Hero Section with Transparency */
.product-image-container {
    width: 100%;
    max-width: 400px;
    height: 300px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 6s ease-in-out infinite;
    background: transparent;
    z-index: 2;
}

.product-mask {
    width: 260px;
    height: 100px;
    position: relative;
}

.mask-shape {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(35, 41, 70, 0.8), rgba(18, 29, 66, 0.8));
    backdrop-filter: blur(5px);
    border-radius: 50px;
    box-shadow: 
        0 20px 50px rgba(135, 88, 255, 0.3),
        inset 0 -10px 20px rgba(0, 0, 0, 0.2),
        inset 0 5px 15px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mask-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(135, 88, 255, 0.3), transparent 70%);
    filter: blur(15px);
    z-index: -1;
}

/* Science Section Placeholder Images with Transparency */
.placeholder-image {
    width: 100%;
    height: 100%;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.placeholder-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(18, 29, 66, 0.6), rgba(0, 59, 139, 0.6));
    border-radius: 10px;
    z-index: 1;
}

.placeholder-image i {
    font-size: 4rem;
    color: var(--accent);
    filter: drop-shadow(0 0 15px var(--accent-glow));
    z-index: 3;
}

/* Product Image Animation */
.product-animation {
    animation: moveUpDown 8s cubic-bezier(0.445, 0.80, 0.55, 0.95) infinite;
    position: relative;
    max-width: 100%;
    max-height: 500px;
    border-radius: 20px;
    /* box-shadow: 0 20px 50px rgba(135, 88, 255, 0.3); */
}

@keyframes moveUpDown {
    0% { transform: translateY(0); }
    50% { transform: translateY(-80px); }
    100% { transform: translateY(0); }
}

/* Waitlist Status and Preview */
.waitlist-status {
    margin: 2rem auto;
    padding: 1rem;
    background: rgba(135, 88, 255, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(135, 88, 255, 0.2);
    text-align: center;
    max-width: 600px;
}

.waitlist-status p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.view-waitlist-btn {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
}

.view-waitlist-btn:hover {
    background: rgba(135, 88, 255, 0.1);
    transform: translateY(-2px);
}

.waitlist-preview {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    z-index: 1000;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(135, 88, 255, 0.3);
    backdrop-filter: blur(10px);
}

.waitlist-preview h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.email-list {
    margin-bottom: 2rem;
    max-height: 50vh;
    overflow-y: auto;
    padding-right: 1rem;
}

.email-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background 0.3s;
}

.email-item:hover {
    background: rgba(135, 88, 255, 0.1);
}

.email-item .email {
    font-weight: 500;
    color: var(--text-light);
}

.email-item .date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.close-preview {
    display: block;
    margin: 0 auto;
    background: var(--accent);
    color: var(--text-light);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
}

.close-preview:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Add an overlay when the preview is visible */
.waitlist-preview::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 9, 18, 0.8);
    z-index: -1;
}

/* Animated Mask Styles */
.animated-mask-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.animated-mask {
    position: relative;
    width: 300px;
    height: 120px;
    perspective: 800px;
}

.mask-body {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(35, 41, 70, 0.9), rgba(18, 29, 66, 0.9));
    border-radius: 60px;
    box-shadow: 
        0 20px 50px rgba(135, 88, 255, 0.4),
        inset 0 -10px 20px rgba(0, 0, 0, 0.3),
        inset 0 5px 15px rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    animation: pulse 4s ease-in-out infinite;
}

.mask-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(135, 88, 255, 0.4), transparent 70%);
    filter: blur(20px);
    z-index: -1;
    animation: glow 3s ease-in-out infinite alternate;
}

.mask-strap {
    position: absolute;
    height: 10px;
    width: 150px;
    background: rgba(18, 29, 66, 0.8);
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mask-strap.left {
    top: 30px;
    left: -140px;
    transform: rotate(-10deg);
}

.mask-strap.right {
    top: 30px;
    right: -140px;
    transform: rotate(10deg);
}

.electrode {
    position: absolute;
    width: 15px;
    height: 15px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-glow);
    animation: blink 4s infinite;
}

.electrode.one {
    top: 40px;
    left: 50px;
}

.electrode.two {
    top: 40px;
    right: 50px;
}

.indicator-light {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #4CAF50;
    border-radius: 50%;
    bottom: 40px;
    right: 30px;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.8);
    animation: blink 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes glow {
    0% { opacity: 0.5; filter: blur(20px); }
    100% { opacity: 0.8; filter: blur(25px); }
}

@keyframes blink {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Science Section Animations */
.animated-research, .animated-brain, .animated-metrics {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(18, 29, 66, 0.6);
    position: relative;
    overflow: hidden;
    border-radius: 10px 10px 0 0;
}

/* Research Graph Animation */
.graph-container {
    width: 80%;
    height: 120px;
    position: relative;
    display: flex;
    align-items: center;
    padding: 20px;
}

.graph-line {
    position: relative;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent), transparent);
    overflow: visible;
}

.graph-dot {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-glow);
    top: -4px;
    animation: moveAlongLine 5s ease-in-out infinite;
}

@keyframes moveAlongLine {
    0% { left: 0; transform: translateY(0); }
    25% { transform: translateY(-20px); }
    50% { transform: translateY(15px); }
    75% { transform: translateY(-10px); }
    100% { left: calc(100% - 10px); transform: translateY(0); }
}

/* Brain Animation */
.brain-shape {
    width: 120px;
    height: 100px;
    background: rgba(135, 88, 255, 0.2);
    border-radius: 60px 60px 30px 30px;
    position: relative;
    overflow: hidden;
}

.brain-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px var(--accent-glow);
    animation: pulsate 3s ease-in-out infinite;
}

@keyframes pulsate {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(8); opacity: 0; }
}

/* Sleep Metrics Animation */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 15px;
    height: 120px;
    width: 100%;
    padding: 20px;
}

.bar {
    width: 30px;
    background: linear-gradient(to top, var(--secondary), var(--accent));
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(135, 88, 255, 0.3);
}

.bar1 {
    height: 40%;
    animation: growBar 3s infinite alternate;
}

.bar2 {
    height: 70%;
    animation: growBar 3s infinite alternate 0.5s;
}

.bar3 {
    height: 50%;
    animation: growBar 3s infinite alternate 1s;
}

@keyframes growBar {
    0% { height: 30%; }
    100% { height: 80%; }
}

/* Animated Feature Icons */
.animated-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    height: 100px;
}

.icon-container {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.icon-element {
    position: relative;
    z-index: 2;
}

.icon-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(135, 88, 255, 0.4) 0%, transparent 70%);
    animation: iconPulse 3s infinite;
}

@keyframes iconPulse {
    0%, 100% { transform: scale(0.8); opacity: 0.4; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

/* Brain Icon */
.brain-icon .icon-element {
    width: 50px;
    height: 50px;
    background: rgba(135, 88, 255, 0.1);
    border-radius: 50%;
    position: relative;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Brain wave lines */
.brain-icon .icon-element:before,
.brain-icon .icon-element:after {
    content: '';
    position: absolute;
    background: var(--accent);
    height: 2px;
    border-radius: 2px;
    box-shadow: 0 0 8px var(--accent-glow);
}

.brain-icon .icon-element:before {
    width: 40px;
    top: 20px;
    animation: brainWave 3s ease-in-out infinite;
}

.brain-icon .icon-element:after {
    width: 30px;
    top: 30px;
    animation: brainWave 3s ease-in-out infinite 0.5s;
}

@keyframes brainWave {
    0%, 100% { transform: scaleX(0.8); opacity: 0.5; }
    50% { transform: scaleX(1.2); opacity: 1; }
}

.brain-icon .icon-container:before,
.brain-icon .icon-container:after {
    content: '';
    position: absolute;
    background: var(--accent);
    height: 2px;
    border-radius: 2px;
    box-shadow: 0 0 8px var(--accent-glow);
}

.brain-icon .icon-container:before {
    width: 40px;
    top: 40px;
    animation: brainWave 3s ease-in-out infinite 1s;
}

.brain-icon .icon-container:after {
    width: 35px;
    top: 50px;
    animation: brainWave 3s ease-in-out infinite 1.5s;
}

/* Heart Icon */
.heart-icon .icon-element {
    width: 30px;
    height: 30px;
    background: var(--accent);
    transform: rotate(45deg);
    position: relative;
    animation: heartbeat 1.5s infinite;
}

.heart-icon .icon-element:before,
.heart-icon .icon-element:after {
    content: '';
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 50%;
    position: absolute;
}

.heart-icon .icon-element:before {
    top: -15px;
    left: 0;
}

.heart-icon .icon-element:after {
    top: 0;
    left: -15px;
}

@keyframes heartbeat {
    0%, 100% { transform: rotate(45deg) scale(0.8); }
    50% { transform: rotate(45deg) scale(1); }
}

/* Moon Icon */
.moon-icon .icon-element {
    width: 40px;
    height: 40px;
    background: transparent;
    border-radius: 50%;
    box-shadow: 10px -10px 0 var(--accent);
    transform: rotate(-45deg);
    animation: moonGlow 4s infinite;
}

.moon-icon .icon-container:before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    top: 15px;
    left: 25px;
    z-index: 3;
    animation: starTwinkle 2s infinite;
}

.moon-icon .icon-container:after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    top: 30px;
    left: 45px;
    z-index: 3;
    animation: starTwinkle 2s infinite 1s;
}

@keyframes moonGlow {
    0%, 100% { box-shadow: 10px -10px 0 var(--accent), 0 0 20px rgba(135, 88, 255, 0.2); }
    50% { box-shadow: 10px -10px 0 var(--accent), 0 0 30px rgba(135, 88, 255, 0.6); }
}

@keyframes starTwinkle {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}