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

:root {
    --bg-color: #0a0a0a;
    --bg-subtle: #111111;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
    --accent-color: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --border-color: #1a1a1a;
    --footer-text: #888;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 600px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: calc(100vh - 40px);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--text-color) 0%, var(--accent-color) 50%, var(--text-color) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    animation: fadeInUp 0.8s ease-out, gradientShift 8s ease infinite;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}

.subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    opacity: 0.8;
}

.cta-section {
    margin-top: 48px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.google-play-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: white;
    text-decoration: none;
    border-radius: 14px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.2);
}

.google-play-btn::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;
}

.google-play-btn:hover::before {
    left: 100%;
}

.google-play-btn:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-color) 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.google-play-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.google-play-btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
}

.play-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.google-play-btn:hover .play-icon {
    transform: scale(1.1);
}

.footer {
    margin-top: 80px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeIn 1s ease-out 0.6s both;
}

.footer-link {
    color: var(--footer-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: all 0.2s ease;
    position: relative;
    padding: 4px 0;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.footer-link:hover {
    color: var(--text-color);
}

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

.footer-link:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
    border-radius: 2px;
}

.separator {
    color: var(--border-color);
    font-size: 0.875rem;
    opacity: 0.5;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@media (max-width: 640px) {
    .container {
        max-width: 100%;
    }
    
    .main-content {
        gap: 16px;
    }
    
    .cta-section {
        margin-top: 36px;
    }
    
    .google-play-btn {
        padding: 16px 28px;
        font-size: 0.9375rem;
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .play-icon {
        width: 22px;
        height: 22px;
    }
    
    .footer {
        margin-top: 60px;
        padding-top: 28px;
        gap: 12px;
    }
    
    .footer-link {
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 16px;
    }
    
    .google-play-btn {
        padding: 14px 24px;
        font-size: 0.875rem;
    }
    
    .play-icon {
        width: 20px;
        height: 20px;
    }
}