:root {
    /* Color Palette - Premium Dark Theme with Vibrant Accents */
    --clr-bg: #0a0a0c;
    --clr-surface: #141417;
    --clr-surface-muted: #1c1c21;
    --clr-primary: #8a2be2;
    /* BlueViolet */
    --clr-primary-glow: rgba(138, 43, 226, 0.4);
    --clr-accent: #00f2ff;
    /* Cyber Cyan */
    --clr-text: #f0f0f5;
    --clr-text-muted: #a0a0b0;
    --clr-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Effects */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--clr-bg);
    color: var(--clr-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Layout Parts */
.site-header {
    background-color: rgba(10, 10, 12, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--clr-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--clr-text);
    font-family: var(--font-heading);
}

.logo-accent {
    color: var(--clr-primary);
}

/* Navigation */
.main-nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--clr-text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), #4b0082);
    color: white;
    box-shadow: 0 4px 15px var(--clr-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--clr-primary-glow);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    background: linear-gradient(135deg, var(--clr-primary), #4b0082);
    color: white;
    border-radius: 8px;
}

/* Hero Section */
.hero {
    position: relative;
    padding: var(--spacing-xl) 0;
    min-height: 500px;
    display: flex;
    align-items: center;
    border-radius: 0 0 40px 40px;
    margin-bottom: var(--spacing-xl);
    background: var(--clr-bg);
}

/* Countdown & Leaderboard */
.hero-countdown {
    display: flex;
    gap: 1.5rem;
    margin: 2rem 0;
    font-family: 'Inter', sans-serif;
    overflow: hidden;
    max-width: 100%;
}

.countdown-unit {
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    padding: 1rem;
    border-radius: 12px;
    min-width: 80px;
    animation: slideUpFade 0.8s ease-out forwards;
}

.countdown-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--clr-accent);
    text-shadow: 0 0 15px rgba(0, 255, 127, 0.4);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.countdown-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--clr-text-dim);
    margin-top: 0.2rem;
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.leaderboard-section {
    margin-top: 4rem;
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
}

.leaderboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.top-mover {
    transition: transform 0.3s ease;
}

.top-mover:hover {
    transform: translateY(-5px);
}

/* Riff Detail Layout Fix */
.riff-detail-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-image-container {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    aspect-ratio: 16/9;
}

.hero-visual {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    transition: transform 0.8s ease;
}

.hero:hover .hero-visual {
    transform: scale(1);
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--clr-bg), transparent);
    z-index: 1;
}

@media (max-width: 992px) {
    .hero-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image-container {
        display: none;
    }
}

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

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(to right, #fff, var(--clr-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-lg);
}

/* Description Section */
.about-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-description {
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    color: var(--clr-text-muted);
}

/* Riff Grid */
.riff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Riff Card */
.riff-card-container {
    perspective: 1000px;
}

.riff-card {
    background-color: var(--clr-surface);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--clr-border);
    transition: var(--transition-base);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.riff-card:hover {
    transform: rotateX(2deg) rotateY(2deg) translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(138, 43, 226, 0.3);
}

.riff-card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.riff-card-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(138, 43, 226, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-fast);
    backdrop-filter: blur(4px);
}

.riff-card:hover .riff-card-overlay {
    opacity: 1;
}

.btn-icon {
    background: white;
    color: var(--clr-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.riff-card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
}

.riff-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.riff-meta {
    font-size: 0.8rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-md);
}

.riff-description-short {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
}

/* Footer */
.site-footer {
    padding: var(--spacing-xl) 0;
    background-color: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    margin-top: var(--spacing-xl);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.footer-tagline {
    color: var(--clr-text-muted);
    font-size: 0.9rem;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-nav a {
    text-decoration: none;
    color: var(--clr-text-muted);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--clr-primary);
}

/* Forms (Record Module) */
.record-module {
    background-color: var(--clr-surface);
    padding: var(--spacing-lg);
    border-radius: 20px;
    border: 1px solid var(--clr-border);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--clr-text-muted);
}

input,
textarea,
select,
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: 12px;
    color: white;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--clr-accent);
    /* Make labels slightly more prominent */
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

input:focus,
textarea:focus,
select:focus,
.form-control:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* Utilities */
.text-center {
    text-align: center;
}

.mt-xl {
    margin-top: var(--spacing-xl);
}