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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    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;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: white;
    color: #2563eb;
}

/* EEG Visualization */
.eeg-visualization {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
}

.eeg-visualization img {
    width: 100%;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.wave {
    position: absolute;
    width: 200%;
    height: 4px;
    background: white;
    border-radius: 2px;
    opacity: 0.6;
    animation: waveMove 4s ease-in-out infinite, wavePulse 2s ease-in-out infinite;
}

.wave-1 {
    top: 30px;
    animation-delay: 0s, 0s;
    opacity: 0.6;
}

.wave-2 {
    top: 60px;
    animation-delay: 1s, 1s;
    opacity: 0.4;
    animation-duration: 5s, 2.5s;
    transform: scaleY(1.2);
}

.wave-3 {
    top: 90px;
    animation-delay: 2s, 0.5s;
    opacity: 0.3;
    animation-duration: 6s, 3s;
    transform: scaleY(1.4);
}

@keyframes waveMove {
    0% {
        transform: translateX(-50%) scaleY(1);
    }
    50% {
        transform: translateX(50%) scaleY(1.2);
    }
    100% {
        transform: translateX(-50%) scaleY(1);
    }
}

@keyframes wavePulse {
    0%, 100% {
        opacity: 0.2;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.6;
        transform: scaleY(1.5);
    }
}

.stress-indicator {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    width: 100%;
}

.stress-level {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.stress-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

.stress-bar {
    width: 200px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.stress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4ade80, #22c55e);
    width: 23%;
    transition: width 0.5s ease;
}

.stress-percentage {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Section Styles */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.section-header p {
    font-size: 1.1rem;
    color: #6b7280;
}

/* Problem Section */
.problem {
    background: #f8fafc;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.problem-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
}

.problem-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.problem-icon i {
    font-size: 1.5rem;
    color: white;
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.problem-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Solution Section */
.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.solution-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.solution-text p {
    font-size: 1.1rem;
    color: #6b7280;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.feature-item i {
    color: #10b981;
    font-size: 1.1rem;
}

.solution-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.solution-gif {
    max-width: 100%;
    border-radius: 12px;
}

/* Device Mockup */
.device-mockup {
    display: flex;
    justify-content: center;
}

.device-screen {
    width: 280px;
    height: 500px;
    background: #1f2937;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.app-interface {
    background: white;
    height: 100%;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.app-header h3 {
    color: #2563eb;
    font-weight: 700;
}

.connection-status i {
    color: #10b981;
    font-size: 1.2rem;
}

.stress-display {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.stress-circle {
    position: relative;
    margin-bottom: 1rem;
}

.stress-circle svg {
    width: 120px;
    height: 120px;
    transform: rotate(-90deg);
}

.stress-progress {
    transition: stroke-dashoffset 0.5s ease;
}

.stress-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Demo Section */
.demo {
    background: #f8fafc;
}

.demo-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.demo-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.demo-content p {
    font-size: 1.1rem;
    color: #6b7280;
    margin-bottom: 3rem;
}

.demo-interface {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.eeg-inputs h3,
.stress-result h3 {
    margin-bottom: 1.5rem;
    color: #1f2937;
    font-weight: 600;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.input-group label {
    min-width: 120px;
    font-weight: 500;
    color: #374151;
}

.input-group input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: #e5e7eb;
    outline: none;
    -webkit-appearance: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
}

.input-value {
    min-width: 50px;
    text-align: right;
    font-weight: 600;
    color: #2563eb;
}

.stress-display-demo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.stress-circle-demo {
    position: relative;
    margin-bottom: 1rem;
}

.stress-circle-demo svg {
    width: 120px;
    height: 120px;
    transform: rotate(-90deg);
}

.stress-value-demo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-item h4 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.contact-item p {
    color: #6b7280;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #2563eb;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .solution-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .demo-interface {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .btn {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }
    .eeg-visualization {
      
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        max-width: 50px;
        margin: 0 auto;
    }
    .hero-image {
      
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    
    
}

.eeg-visualization img {
    max-width: 100%;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
} 

/* What's Next Section */
.whats-next {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.roadmap-section {
    margin-bottom: 4rem;
}

.roadmap-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.roadmap-section h3 i {
    color: #2563eb;
    font-size: 1.5rem;
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.roadmap-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.roadmap-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.roadmap-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.roadmap-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.roadmap-card ul {
    list-style: none;
    padding: 0;
}

.roadmap-card ul li {
    padding: 0.5rem 0;
    color: #475569;
    position: relative;
    padding-left: 1.5rem;
}

.roadmap-card ul li:before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Market Stats */
.market-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-description {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Revenue Projections */
.revenue-projections {
    margin-bottom: 3rem;
}

.revenue-projections h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.projection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.projection-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.projection-card:hover {
    border-color: #2563eb;
    transform: translateY(-3px);
}

.projection-card h5 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.projection-amount {
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1.5rem;
}

.projection-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.projection-card ul li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.projection-card ul li:before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Market Opportunities */
.market-opportunities h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

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

.opportunity-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.opportunity-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.opportunity-card h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.opportunity-card h5 i {
    color: #2563eb;
}

.opportunity-card p {
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.opportunity-size {
    font-size: 1.1rem;
    font-weight: 600;
    color: #10b981;
    background: #ecfdf5;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: inline-block;
}

/* Responsive Design for What's Next Section */
@media (max-width: 768px) {
    .roadmap-grid {
        grid-template-columns: 1fr;
    }
    
    .market-stats {
        grid-template-columns: 1fr;
    }
    
    .projection-grid {
        grid-template-columns: 1fr;
    }
    
    .opportunity-grid {
        grid-template-columns: 1fr;
    }
    
    .roadmap-section h3 {
        font-size: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .projection-amount {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .roadmap-card {
        padding: 1.5rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .projection-card {
        padding: 1.5rem;
    }
    
    .opportunity-card {
        padding: 1.5rem;
    }
}