:root {
    --bg-color: #0f0c29;
    --text-color: #ffffff;
    --primary-color: #302b63;
    --secondary-color: #24243e;
    --accent-color: #00d2ff;
    --accent-glow: rgba(0, 210, 255, 0.4);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
}

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

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

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    pointer-events: none;
}

.background-animation::before,
.background-animation::after {
    content: '';
    position: absolute;
    width: 40vw;
    height: 40vw;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    animation: drift 20s infinite alternate ease-in-out;
    opacity: 0.3;
}

.background-animation::before {
    top: -10%;
    left: -10%;
}

.background-animation::after {
    bottom: -10%;
    right: -10%;
    animation-delay: -10s;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    background-color: rgba(15, 12, 41, 0.8);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-family: var(--font-heading);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 5%;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.highlight {
    background: linear-gradient(90deg, #00d2ff, #928DAB);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(90deg, #00d2ff, #3a7bd5);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 210, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-secondary:hover {
    background: var(--accent-color);
    color: #fff;
}

/* Sections */
.section {
    padding: 8rem 5%;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* About Section */
.about-content {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Works Grid */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.work-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    transition: transform 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(5px);
}

.work-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.work-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--card-border);
    transition: transform 0.5s;
}

.work-card:hover .work-image {
    transform: scale(1.05);
}

.work-content {
    padding: 1.5rem;
}

.work-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.work-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.work-link {
    font-size: 0.9rem;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.work-link:hover {
    gap: 0.8rem;
    color: var(--accent-color);
}

/* Contact Section */
.contact-content {
    text-align: center;
}

.contact-content p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

/* Footer */
.footer {
    padding: 2rem;
    text-align: center;
    background: rgba(15, 12, 41, 0.9);
    border-top: 1px solid var(--card-border);
}

.footer p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

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

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    display: block;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: #fff;
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 1rem 5%;
    }
    
    .nav-links {
        display: none; /* Simplification for this demo */
    }

    .hero-title {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 5rem 5%;
    }
}