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

:root {
    --spotify-green: #1db954;
    --spotify-dark-green: #1ed760;
    --spotify-black: #191414;
    --spotify-dark-gray: #121212;
    --spotify-gray: #282828;
    --spotify-light-gray: #b3b3b3;
    --spotify-white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1db954 0%, #1ed760 100%);
    --gradient-dark: linear-gradient(135deg, #191414 0%, #282828 100%);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 12px 40px rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--spotify-black);
    background: var(--spotify-white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 20px;
    color: var(--spotify-black);
    text-decoration: none;
}

.logo-icon {
    font-size: 24px;
}

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

.nav-link {
    color: var(--spotify-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--spotify-black);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-cta {
    background: var(--gradient-primary);
    color: var(--spotify-white);
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--spotify-white);
    padding-top: 100px;
}

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

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(29, 185, 84, 0.05) 0%, 
        rgba(30, 215, 96, 0.03) 50%, 
        rgba(29, 185, 84, 0.05) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(29, 185, 84, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(30, 215, 96, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(29, 185, 84, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(10px) rotate(-1deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(29, 185, 84, 0.1);
    color: var(--spotify-green);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(29, 185, 84, 0.2);
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--spotify-black);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--spotify-gray);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-cta {
    margin-bottom: 60px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--spotify-white);
    box-shadow: var(--shadow-medium);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

.cta-button.primary::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 0.5s ease;
}

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

.cta-icon {
    font-size: 18px;
}

.cta-note {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    color: var(--spotify-gray);
    font-size: 14px;
    font-weight: 500;
}

.checkmark {
    color: var(--spotify-green);
    font-weight: 700;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--spotify-black);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--spotify-gray);
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-video-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-strong);
    background: var(--spotify-dark-gray);
}

.hero-video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.play-indicator {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.play-circle {
    width: 0;
    height: 0;
    border-left: 20px solid var(--spotify-green);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.hero-video-container.playing .video-overlay {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--spotify-black);
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--spotify-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Problem Section */
.problem-section {
    padding: 120px 0;
    background: #f8f9fa;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.problem-card {
    background: var(--spotify-white);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

.problem-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.problem-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--spotify-black);
}

.problem-card p {
    color: var(--spotify-gray);
    line-height: 1.6;
    font-size: 16px;
}

/* Video Section */
.video-section {
    padding: 120px 0;
    background: var(--spotify-white);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-strong);
    position: relative;
    background: var(--spotify-dark-gray);
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.video-overlay:hover {
    background: rgba(0, 0, 0, 0.5);
}

.play-button {
    width: 100px;
    height: 100px;
    background: var(--spotify-white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-medium);
}

.play-button:hover {
    transform: scale(1.1);
}

.play-icon {
    color: var(--spotify-green);
    width: 32px;
    height: 32px;
    margin-left: 4px;
}

.video-preview-text {
    color: var(--spotify-white);
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.video-container.playing .video-overlay {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Features Section */
.features-section {
    padding: 120px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--spotify-white);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

.feature-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--spotify-black);
}

.feature-card p {
    color: var(--spotify-gray);
    line-height: 1.6;
    font-size: 16px;
}


/* How It Works Section */
.how-it-works {
    padding: 120px 0;
    background: #f8f9fa;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    color: var(--spotify-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-medium);
}

.step h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--spotify-black);
}

.step p {
    color: var(--spotify-gray);
    line-height: 1.5;
    font-size: 16px;
}

/* Testimonials Section */
.testimonials-section {
    padding: 120px 0;
    background: var(--spotify-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background: var(--spotify-white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    font-size: 18px;
    line-height: 1.6;
    color: var(--spotify-black);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.author-name {
    font-weight: 700;
    color: var(--spotify-black);
    margin-bottom: 4px;
}

.author-title {
    font-size: 14px;
    color: var(--spotify-gray);
}

/* Playlist Section */
.playlist-section {
    padding: 120px 0;
    background: #f8f9fa;
}

.playlist-card {
    background: var(--spotify-white);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.playlist-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--spotify-black);
}

.playlist-description {
    font-size: 1.25rem;
    color: var(--spotify-gray);
    margin-bottom: 32px;
    line-height: 1.6;
}

.spotify-embed-container {
    margin: 32px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background: var(--spotify-white);
}

.spotify-embed-container iframe {
    border-radius: 12px;
    display: block;
}

.playlist-cta {
    margin-top: 24px;
    text-align: center;
}

.playlist-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--gradient-primary);
    color: var(--spotify-white);
    padding: 18px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-medium);
}

.playlist-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

.playlist-icon {
    font-size: 18px;
}

/* Final CTA Section */
.final-cta {
    padding: 120px 0;
    background: var(--gradient-dark);
    color: var(--spotify-white);
    text-align: center;
}

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

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--spotify-white);
}

.cta-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.cta-button.large {
    padding: 20px 40px;
    font-size: 18px;
}

.cta-guarantee {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
}

.guarantee-icon {
    color: var(--spotify-green);
    font-weight: 700;
}

/* Footer */
.footer {
    padding: 60px 0;
    background: var(--spotify-black);
    color: var(--spotify-white);
}

.footer-content {
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--spotify-light-gray);
    text-decoration: none;
    margin: 0 20px;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--spotify-white);
}

.footer-text {
    color: var(--spotify-light-gray);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }
    
    .nav-link {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 20px;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .problem-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .problem-section,
    .video-section,
    .features-section,
    .how-it-works,
    .testimonials-section,
    .playlist-section,
    .final-cta {
        padding: 80px 0;
    }
    
    .playlist-card {
        padding: 40px 20px;
    }
    
    .spotify-embed-container {
        margin: 24px 0;
    }
    
    .spotify-embed-container iframe {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 16px 28px;
        font-size: 15px;
    }
    
    .cta-button.large {
        padding: 18px 32px;
        font-size: 16px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .cta-description {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
}

/* Privacy Policy Page Styles */
.privacy-section {
    padding: 120px 0 80px;
    background: var(--spotify-white);
    min-height: 100vh;
}

.privacy-header {
    text-align: center;
    margin-bottom: 60px;
}

.privacy-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--spotify-black);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.privacy-subtitle {
    font-size: 1.125rem;
    color: var(--spotify-gray);
    font-style: italic;
}

.privacy-summary {
    margin-bottom: 60px;
}

.summary-card {
    background: var(--spotify-white);
    border: 2px solid var(--spotify-green);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.summary-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--spotify-green);
    margin-bottom: 16px;
}

.summary-card p {
    font-size: 1.125rem;
    color: var(--spotify-gray);
    line-height: 1.6;
    margin: 0;
}

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

.privacy-section-card {
    background: var(--spotify-white);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.privacy-section-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--spotify-black);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--spotify-green);
}

.privacy-section-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--spotify-black);
    margin: 24px 0 12px 0;
}

.privacy-section-card p {
    font-size: 1rem;
    color: var(--spotify-gray);
    line-height: 1.6;
    margin-bottom: 16px;
}

.privacy-section-card ul {
    margin: 16px 0;
    padding-left: 24px;
}

.privacy-section-card li {
    font-size: 1rem;
    color: var(--spotify-gray);
    line-height: 1.6;
    margin-bottom: 8px;
}

.privacy-section-card strong {
    color: var(--spotify-black);
    font-weight: 600;
}

.contact-info {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 24px;
    margin-top: 24px;
}

.contact-info p {
    font-weight: 600;
    color: var(--spotify-black);
    margin-bottom: 16px;
}

.contact-info ul {
    margin: 0;
    padding-left: 20px;
}

.contact-info li {
    margin-bottom: 8px;
}

.privacy-reminder {
    margin-top: 60px;
}

.reminder-card {
    background: linear-gradient(135deg, rgba(29, 185, 84, 0.1), rgba(30, 215, 96, 0.1));
    border: 1px solid rgba(29, 185, 84, 0.2);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
}

.reminder-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--spotify-green);
    margin-bottom: 16px;
}

.reminder-card p {
    font-size: 1.125rem;
    color: var(--spotify-gray);
    line-height: 1.6;
    margin: 0;
}

/* Privacy Policy Responsive */
@media (max-width: 768px) {
    .privacy-section {
        padding: 100px 0 60px;
    }
    
    .privacy-title {
        font-size: 2.5rem;
    }
    
    .privacy-section-card {
        padding: 24px;
        margin-bottom: 24px;
    }
    
    .privacy-section-card h2 {
        font-size: 1.5rem;
    }
    
    .summary-card,
    .reminder-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .privacy-title {
        font-size: 2rem;
    }
    
    .privacy-section-card {
        padding: 20px;
    }
    
    .privacy-section-card h2 {
        font-size: 1.25rem;
    }
    
    .summary-card,
    .reminder-card {
        padding: 20px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.cta-button:focus,
.nav-link:focus,
.playlist-link:focus {
    outline: 2px solid var(--spotify-green);
    outline-offset: 2px;
}

/* Animation for cards on scroll */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.problem-card,
.feature-card,
.audience-card,
.testimonial-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading animation */
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.cta-button.primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}