:root {
    /* Pure Modern Palette */
    --bg-main: #FFFFFF;
    --bg-gray: #FAFAFA;
    --text-main: #111111;
    --text-muted: #888888;
    --text-light: #BBBBBB;
    --border-light: #EEEEEE;
    
    /* Typography - Clean Sans-Serif */
    --font-sans: 'Inter', "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--text-main);
    color: var(--bg-main);
}

/* Header */
.modern-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 6%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modern-logo {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: 0.05em;
}

.modern-nav {
    display: flex;
    gap: 40px;
}

.modern-nav a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color 0.3s;
}

.modern-nav a:hover {
    color: var(--text-muted);
}

.contact-btn {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bg-main);
    background-color: var(--text-main);
    padding: 10px 24px;
    border-radius: 40px;
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: background-color 0.3s, transform 0.3s;
}

.contact-btn:hover {
    background-color: #333;
    transform: translateY(-2px);
}

/* Common Section */
.modern-section {
    padding: 200px 8%;
}

.bg-gray {
    background-color: var(--bg-gray);
}

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 120px;
    color: var(--text-main);
}

/* Hero Section */
.modern-hero {
    min-height: 100vh;
    padding: 200px 8% 120px;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 100px;
    align-items: center;
}

.hero-title {
    font-family: 'Outfit', 'Inter', sans-serif;
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: 0.05em;
    margin-bottom: 25px;
    margin-left: -3px;
    text-transform: uppercase;
}

.hero-title-ja {
    display: block;
    font-family: 'Shippori Mincho', "Noto Serif JP", serif;
    font-size: clamp(1.2rem, 3.2vw, 1.8rem);
    font-weight: 600;
    letter-spacing: 0.25em;
    color: var(--text-main);
    margin-top: 25px;
}

.hero-subtitle {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-image {
    width: 100%;
}

.hero-image img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 50%;
    display: block;
    filter: grayscale(100%);
}

/* Profile Section */
.modern-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 80px;
    margin-bottom: 100px;
}

.data-block {
    display: flex;
    flex-direction: column;
}

.full-width {
    grid-column: 1 / -1;
}

.data-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-light);
    margin-bottom: 20px;
}

.data-value {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.achievements-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.pill {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 12px 24px;
    background-color: var(--bg-gray);
    border-radius: 50px;
    color: var(--text-main);
    letter-spacing: 0.02em;
}

/* Vision Section */
#vision .section-title {
    font-family: 'Shippori Mincho', "Noto Serif JP", serif;
    font-weight: 600;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    letter-spacing: 0.15em;
    line-height: 1.5;
}

.text-center {
    text-align: center;
}

.text-black {
    color: var(--text-main);
}

.vision-text {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 400;
    line-height: 2.2;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}

.vision-image {
    margin-top: 100px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 8px;
    overflow: hidden;
}

.vision-image img {
    width: 100%;
    display: block;
    mix-blend-mode: multiply;
}

/* History Timeline */
.modern-timeline {
    border-top: 1px solid var(--border-light);
    padding-top: 80px;
}

.timeline-row {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 80px;
    margin-bottom: 120px;
}

.timeline-year {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--text-light);
}

.timeline-events {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.timeline-item {
    display: flex;
    gap: 50px;
}

.item-month {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    width: 40px;
    letter-spacing: 0.05em;
}

.item-content {
    flex: 1;
}

.item-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: -0.01em;
}

.item-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Work Section */
.project-card {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.project-image {
    width: 100%;
    background-color: var(--bg-gray);
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.project-image:hover img {
    transform: scale(1.02);
}

.project-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-light);
    display: block;
    margin-bottom: 15px;
}

.project-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.project-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 700px;
}

/* Footer */
.modern-footer {
    padding: 240px 8% 100px;
    background-color: var(--text-main);
    color: var(--bg-main);
}

.footer-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 40px;
    color: var(--bg-main);
}

.footer-desc {
    font-size: 1.1rem;
    color: #888;
    max-width: 600px;
    margin-bottom: 100px;
    line-height: 1.8;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 50px;
    border-bottom: 1px solid #333;
    margin-bottom: 50px;
}

.email-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--bg-main);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.email-link:hover {
    text-decoration: underline;
}

.socials {
    display: flex;
    gap: 30px;
}

.socials a {
    color: var(--bg-main);
    font-size: 1.2rem;
    transition: color 0.3s;
}

.socials a:hover {
    color: #888;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #888;
    letter-spacing: 0.05em;
}

.back-to-top {
    color: var(--bg-main);
    text-decoration: none;
    font-weight: 500;
}

.back-to-top:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
    .modern-nav, .contact-btn { display: none; }
    
    .hero-container { grid-template-columns: 1fr; gap: 40px; text-align: center; padding-top: 60px; }
    .hero-title { margin-left: 0; }
    
    .modern-section { padding: 120px 8%; }
    .modern-grid { grid-template-columns: 1fr; gap: 50px; }
    
    .timeline-row { grid-template-columns: 1fr; gap: 40px; margin-bottom: 80px; }
    .timeline-year { font-size: 2.5rem; }
    
    .footer-links { flex-direction: column; gap: 40px; align-items: flex-start; }
    .email-link { font-size: 1.2rem; }
}