:root {
    --bg-base: #121212;
    --bg-highlight: #1a1a1a;
    --bg-elevated: #282828;
    --text-base: #b3b3b3;
    --text-white: #ffffff;
    --brand-spotify: #1DB954;
    --brand-spotify-hover: #1ed760;
    --glass-bg: rgba(40, 40, 40, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-base);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--text-white);
}

h1, h2, h3, h4 {
    color: var(--text-white);
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Background Blobs */
.blob {
    position: absolute;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.5;
    border-radius: 50%;
}
.blob-1 {
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: rgba(29, 185, 84, 0.15);
}
.blob-2 {
    top: 40%;
    right: -150px;
    width: 500px;
    height: 500px;
    background: rgba(29, 185, 84, 0.1);
}
.blob-3 {
    bottom: -100px;
    left: 20%;
    width: 600px;
    height: 600px;
    background: rgba(29, 185, 84, 0.05);
}

/* Navbar */
.navbar {
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-white);
}
.github-link {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: background 0.2s ease;
}
.github-link:hover {
    background: var(--bg-elevated);
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}
.subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
}
.cta-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}
.btn {
    padding: 1rem 1.5rem;
    border-radius: 30px;
    font-weight: 700;
    transition: transform 0.2s ease, background 0.2s ease;
    display: inline-block;
}
.btn-primary {
    background: var(--brand-spotify);
    color: var(--bg-base);
}
.btn-primary:hover {
    background: var(--brand-spotify-hover);
    transform: scale(1.04);
}
.btn-secondary {
    background: transparent;
    border: 1px solid var(--text-base);
    color: var(--text-white);
}
.btn-secondary:hover {
    border-color: var(--text-white);
    transform: scale(1.04);
}
.badges {
    display: flex;
    gap: 0.5rem;
}

/* Glassmorphism */
.glass-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}
.glass-container:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}
.demo-gif {
    width: 100%;
    border-radius: 16px;
    display: block;
}

/* Features */
.features {
    padding: 6rem 0;
}
.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    letter-spacing: -0.5px;
}
.section-title span {
    color: var(--text-base);
}
.text-center {
    text-align: center;
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(12px);
    transition: background 0.3s ease, transform 0.3s ease;
}
.glass-panel:hover {
    background: rgba(40, 40, 40, 0.6);
    transform: translateY(-5px);
}
.icon-wrapper {
    font-size: 2rem;
    margin-bottom: 1rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border-radius: 12px;
}
.feature-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

/* Screenshots */
.screenshots {
    padding: 4rem 0;
}
.screenshot-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: end;
}
.screenshot-container {
    padding: 2rem;
}
.screenshot-img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    margin-bottom: 1.5rem;
}
.caption {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Guide */
.guide {
    padding: 6rem 0;
}
.guide-box {
    max-width: 800px;
    margin: 0 auto;
}
.guide-box h2 {
    margin-bottom: 1.5rem;
    color: #f1c40f;
}
.requirements-list {
    margin-bottom: 3rem;
    padding-left: 1.5rem;
}
.requirements-list li {
    margin-bottom: 0.5rem;
}
.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}
.step {
    display: flex;
    gap: 1.5rem;
}
.step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--brand-spotify);
    color: var(--bg-base);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.step-content h4 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}
code {
    background: var(--bg-base);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

/* Animations */
.scroll-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.scroll-element.scrolled {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .hero-grid, .screenshot-grid {
        grid-template-columns: 1fr;
    }
    .hero-text h1 {
        font-size: 2.8rem;
    }
    .cta-group {
        flex-direction: column;
    }
    .btn {
        text-align: center;
    }
    .glass-container {
        transform: none;
    }
    .glass-container:hover {
        transform: none;
    }
}