:root {
    /* Color Palette */
    --color-bg: #0a0e17;
    --color-bg-secondary: #111827;
    --color-surface: #1a1f35;
    --color-surface-hover: #242a42;

    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;

    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;

    --color-text: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-text-muted: #9ca3af;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-purple: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 32px rgba(99, 102, 241, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('assets/hero-bg.png') center/cover no-repeat;
    opacity: 0.4;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, transparent 0%, var(--color-bg) 100%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.1) 0%,
            rgba(139, 92, 246, 0.1) 50%,
            rgba(6, 182, 212, 0.1) 100%);
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 0.6;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-2xl) 0;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease;
    color: var(--color-text);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 3s ease infinite;
}

@keyframes gradientFlow {

    0%,
    100% {
        filter: hue-rotate(0deg);
    }

    50% {
        filter: hue-rotate(30deg);
    }
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
    background-origin: border-box;
    border-color: transparent;
    /* Explicitly ensure border is transparent */
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 48px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary-light);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-arrow {
    width: 24px;
    height: 36px;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 2px;
    animation: scrollDown 2s ease infinite;
}

@keyframes scrollDown {

    0%,
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(0);
    }

    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(12px);
    }
}

/* Section Styles */
section {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Featured Section */
.featured {
    background: var(--color-bg-secondary);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 500px), 1fr));
    gap: var(--space-xl);
}

/* Core Projects Grid - 2 columns */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.feature-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    background: var(--color-surface-hover);
}

.card-melodie:hover {
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
}

.card-spec:hover {
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.card-tab2dict:hover {
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.3);
}

.card-studio:hover {
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.3);
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.card-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
}

.card-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    font-family: var(--font-mono);
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    align-items: center;
    font-size: 0.875rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.stars {
    color: var(--color-accent);
    font-weight: 600;
}

.card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.card-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.feature-item {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.card-links {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary-light);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.3);
    transition: all var(--transition-fast);
}

.link-btn:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* Resources Section */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

/* Resource Card Styling */
.resource-card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all var(--transition-base);
    position: relative;
}

.resource-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    background: var(--color-surface-hover);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.resource-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
    margin-bottom: 0;
    /* Override default */
}

.resource-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
}

.resource-card p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.card-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: auto;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    flex: 1;
    justify-content: center;
}

.btn-code {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary-light);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.btn-code:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--color-primary);
}

.btn-doc {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-text-secondary);
}

.btn-doc:hover {
    border-color: var(--color-primary-light);
    color: var(--color-primary-light);
}

.resource-meta {
    display: none;
    /* Deprecated */
}

/* CTA Section */
.cta {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
}

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

.cta-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--color-bg);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--space-md);
    color: var(--color-primary-light);
}

.footer-section p {
    color: var(--color-text-muted);
}

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

.footer-section ul li {
    margin-bottom: var(--space-xs);
}

.footer-section a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Origins Section */
.origins {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.origins::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 70% 30%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.origins-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: center;
}

.quote-container {
    perspective: 1000px;
}

.quote-box {
    background: var(--color-surface);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(99, 102, 241, 0.2);
    position: relative;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

.quote-box:hover {
    transform: translateY(-5px) rotateX(2deg);
    border-color: var(--color-primary);
}

.quote-icon {
    position: absolute;
    top: -20px;
    left: var(--space-xl);
    color: var(--color-primary);
    background: var(--color-bg-secondary);
    padding: 10px;
    border-radius: 50%;
}

.poetic-quote {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text);
    font-style: italic;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.quote-source {
    display: block;
    text-align: right;
    color: var(--color-primary-light);
    font-weight: 600;
    font-size: 1rem;
}

.origins-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.origins-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.origins-text strong {
    color: var(--color-primary-light);
    font-weight: 600;
}



@media (max-width: 968px) {
    .origins-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .quote-box {
        padding: var(--space-xl);
    }

    .poetic-quote {
        font-size: 1.1rem;
    }
}

/* Responsive */
@media (max-width: 768px) {

    .hero-buttons,
    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

    .feature-cards,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .card-features {
        grid-template-columns: 1fr;
    }

    .resource-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }

    /* Already handled in 768px breakpoint */
}