:root {
    --color-bg: #0a0a0a;
    --color-text: #ffffff;
    --color-primary: #ccff00; /* Acid Green */
    --color-secondary: #ff0099; /* Hot Pink */
    --color-accent: #0088ff; /* Electric Blue */
    --color-gray: #1f1f1f;
    
    --font-main: 'Noto Sans KR', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    --border-width: 2px;
    --border-radius: 0px; /* Sharp edges for Brutalism */
    
    --spacing-container: 1200px;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    overflow-x: hidden;
    cursor: none; /* Custom cursor */
}

/* Custom Cursor */
.cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    background-color: var(--color-primary);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
    z-index: 9999;
    transition: width 0.3s, height 0.3s;
}

body:hover .cursor {
    opacity: 1;
}

a:hover ~ .cursor, button:hover ~ .cursor {
    width: 50px;
    height: 50px;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-display);
    text-transform: uppercase;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-nav {
    border: 1px solid var(--color-text);
    padding: 0.5rem 1.2rem;
    transition: all 0.3s;
}

.btn-nav:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 8rem); /* Responsive giant text */
    line-height: 0.9;
    margin-bottom: 2rem;
    z-index: 1;
}

.outline-text {
    -webkit-text-stroke: 2px var(--color-text);
    color: transparent;
}

.highlight-text {
    color: var(--color-primary);
    text-shadow: 0 0 20px rgba(204, 255, 0, 0.4);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
    max-width: 600px;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-display);
    text-transform: uppercase;
    cursor: none; /* Let custom cursor handle hint */
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 5px 5px 0px var(--color-secondary);
}

.btn-primary:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0px var(--color-secondary);
}

.btn-primary:active {
    transform: translate(2px, 2px);
    box-shadow: 0px 0px 0px var(--color-secondary);
}

/* Marquee */
.marquee-container {
    width: 100%;
    overflow: hidden;
    background: var(--color-secondary);
    color: var(--color-text);
    padding: 1rem 0;
    position: absolute;
    top: 10%;
    left: 0;
    transform: rotate(-2deg) scale(1.1);
    z-index: 0;
    opacity: 0.8;
}

.marquee-container.reverse {
    top: auto;
    bottom: 10%;
    transform: rotate(2deg) scale(1.1);
    background: var(--color-primary);
    color: var(--color-bg);
}

.marquee {
    display: flex;
    white-space: nowrap;
    animation: scroll 20s linear infinite;
    font-weight: 900;
    font-size: 1.5rem;
    font-family: var(--font-display);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Features */
.features-section {
    padding: 6rem 2rem;
    background: var(--color-bg);
}

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

.section-title {
    font-size: 3rem;
    margin-bottom: 4rem;
    border-left: 10px solid var(--color-primary);
    padding-left: 1rem;
}

.grid-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--color-gray);
    padding: 2rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
}

.card-icon {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255,255,255,0.1);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.highlight-card {
    background: var(--color-text);
    color: var(--color-bg);
}

.highlight-card .card-icon {
    color: rgba(0,0,0,0.1);
}

.highlight-card h3 {
    color: var(--color-secondary);
}

/* Vibe Section */
.vibe-section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.vibe-title {
    text-align: center;
    font-size: 5rem;
    margin-bottom: 4rem;
    z-index: 2;
    text-shadow: 0 0 30px rgba(0,0,0,0.8);
}

.vibe-gallery {
    display: flex;
    gap: 2rem;
    z-index: 2;
    padding: 0 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.vibe-item {
    width: 300px;
    height: 400px;
    background-color: #333;
    border: 2px solid var(--color-text);
    transition: transform 0.4s;
}

.item-1 {
    background: linear-gradient(45deg, #ff0099, #493240);
}
.item-2 {
    background: linear-gradient(45deg, #ccff00, #1a2a00);
    transform: translateY(-30px);
}
.item-3 {
    background: linear-gradient(45deg, #0088ff, #001a33);
}

.vibe-item:hover {
    transform: rotate(5deg) scale(1.05);
    z-index: 10;
}

/* Footer */
.footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 4rem 2rem;
    background: #000;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 900;
    font-family: var(--font-display);
}

.footer-links a {
    margin-left: 2rem;
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-links a:hover {
    text-decoration: underline;
    text-decoration-color: var(--color-primary);
    text-decoration-thickness: 3px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #666;
    font-family: var(--font-display);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .marquee-container {
        top: 5%;
    }
    
    .item-2 {
        transform: translateY(0);
    }
    
    .footer-top {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links a {
        margin: 0 1rem;
        display: inline-block;
    }
}