/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #0a0a0f;
    --text-main: #f0f0f5;
    --text-muted: #a0a0b5;
    --accent-color: #00d2ff;
    --accent-secondary: #3a7bd5;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(15, 15, 20, 0.6);
}

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Glowing Orbs */
.background-effects {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

.orb-1 {
    width: 400px; height: 400px;
    background: var(--accent-secondary);
    top: -100px; left: -100px;
}

.orb-2 {
    width: 300px; height: 300px;
    background: #6a11cb;
    bottom: 20%; right: -50px;
    animation-delay: -5s;
}

.orb-3 {
    width: 200px; height: 200px;
    background: var(--accent-color);
    top: 40%; left: 30%;
    opacity: 0.2;
    animation-delay: -10s;
}

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

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(to bottom, var(--bg-color), transparent);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: -webkit-linear-gradient(45deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Main Layout */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

/* Hero Section */
.hero {
    height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.hero .greeting {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero .name {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.hero .role {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 300;
}

/* Section Shared */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
}

section {
    padding: 6rem 0;
}

/* Works Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

/* Card (Glassmorphism) */
.card {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    color: var(--text-main);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 210, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-image {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.card-image .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

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

.card-image .overlay span {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--text-main);
    border-radius: 30px;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

.card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.card-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-color);
    padding: 0.2rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Placeholder Card */
.card.placeholder {
    cursor: default;
}
.card.placeholder:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--card-border);
}

.card-image.empty {
    background: rgba(255,255,255,0.02);
    position: relative;
}

.shimmer {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    animation: shimmer 2s infinite;
}

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

/* About Section */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 3rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.glass-panel p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: linear-gradient(45deg, var(--accent-secondary), var(--accent-color));
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: box-shadow 0.3s, transform 0.3s;
}

.btn:hover {
    box-shadow: 0 10px 20px rgba(0, 210, 255, 0.3);
    transform: translateY(-2px);
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--card-border);
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero .name { font-size: 3.5rem; }
    .hero .role { font-size: 1.2rem; }
    .section-title { font-size: 2rem; }
    .glass-panel { padding: 2rem; }
}