styles.css

:root {
/* Colors */
    --bg-primary: #f7f5f0;
    --bg-secondary: #faf8f4;
    --bg-elevated: #faf8f4;
    --text-primary: #2c2c2c;
    --text-secondary: #4a4a4a;
    --text-muted: #8a8680;
    --accent: #2c2c2c;
    --border: #ddd9d1;
    --border-hover: #b8b3aa;

    /* Typography */
    --font-mono: 'Space Mono', 'Courier New', Consolas, monospace;

    /* Spacing - using 8px grid */
    --space-2xs: 4px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Layout */
    --left-panel-width: 368px;
    --content-max-width: 960px;

    /* Transitions */
    --transition-fast: 0.12s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.24s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #111111;
    --bg-secondary: #171717;
    --bg-elevated: #1e1e1e;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --text-muted: #5a5a5a;
    --accent: #e8e8e8;
    --border: #2a2a2a;
    --border-hover: #404040;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

::selection {
    background-color: rgba(44, 44, 44, 0.12);
    color: var(--text-primary);
}

[data-theme="dark"] ::selection {
    background-color: rgba(232, 232, 232, 0.2);
    color: var(--text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    color: inherit;
}

ul, ol {
    list-style: none;
}


#shader-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
}

/* Subtle Scanlines */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(0, 0, 0, 0.02) 1px,
        rgba(0, 0, 0, 0.02) 2px
    );
    opacity: 0.15;
}

[data-theme="dark"] .scanlines {
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(0, 0, 0, 0.03) 1px,
        rgba(0, 0, 0, 0.03) 2px
    );
    opacity: 0.3;
}


body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.3;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

[data-theme="dark"] body::before {
    opacity: 0.15;
}


.brutalist-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 2;
}


.left-panel {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--left-panel-width);
    height: 100vh;
    padding: var(--space-2xl) var(--space-xl);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    background: var(--bg-primary);
    z-index: 100;
    overflow: hidden;
}

/* Brand / Header */
.brand {
    margin-bottom: var(--space-2xl);
}

.brand-name {
    margin-bottom: var(--space-md);
}

.name-line {
    font-family: 'VT323', monospace;
    font-size: 2.4rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1;
    text-transform: uppercase;
    white-space: nowrap;
}

.glitch {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

/* Tagline */
.brand-tagline {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border);
}

.tagline-text {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.03em;
    line-height: 1.4;
    position: relative;
    display: inline-block;
}

.tagline-text::after {
    content: '_';
    animation: cursor-blink 1s step-end infinite;
    color: var(--text-primary);
}

@keyframes cursor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Navigation Section */
.nav-section {
    margin-bottom: var(--space-2xl);
}

.nav-header {
    margin-bottom: var(--space-lg);
}

.nav-title {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
}

/* Navigation */
.nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.nav-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    transition: all var(--transition-fast);
    border-left: 2px solid transparent;
    padding-left: var(--space-sm);
    margin-left: calc(-1 * var(--space-sm));
    position: relative;
}

.nav-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background: var(--text-primary);
    transition: width var(--transition-fast);
}

.nav-item:hover,
.nav-item.active {
    border-left-color: var(--text-primary);
}

.nav-index {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    min-width: 20px;
}

.nav-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.nav-item:hover .nav-text,
.nav-item.active .nav-text {
    color: var(--text-primary);
}

/* Socials */
.socials {
    margin-top: auto;
    padding-top: var(--space-xl);
    text-align: center;
}

.socials-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    font-weight: 700;
}

.social-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
}

.social-link {
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    padding: var(--space-sm);
}

.social-link:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Left Footer */
.left-footer {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 64px;
}

.ensou {
    color: var(--text-muted);
    transition: opacity var(--transition-slow);
}

.ensou:hover {
    opacity: 0.5;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.status-dot {
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

.status-text {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.copyright {
    font-size: 0.55rem;
    color: var(--text-muted);
    opacity: 0.5;
    letter-spacing: 0.06em;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.9); }
}


.right-panel {
    margin-left: var(--left-panel-width);
    flex: 1;
    min-height: 100vh;
    padding: var(--space-4xl) var(--space-3xl) var(--space-4xl);
}


.section {
    margin-bottom: var(--space-4xl);
    max-width: var(--content-max-width);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.section-index {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    opacity: 0.6;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border), transparent 80%);
}

.section-content {
    max-width: 100%;
}


.hero {
    min-height: 75vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-bottom: var(--space-4xl);
    position: relative;
}

.hero-tagline {
    margin-bottom: var(--space-3xl);
}

.hero-line-wrapper {
    overflow: hidden;
}

.hero-line {
    display: block;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.05;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    opacity: 0;
    transform: translateY(100%);
    animation: slideUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-line:nth-child(1) { animation-delay: 0.1s; }
.hero-line.hero-indent {
    margin-left: var(--space-xl);
    animation-delay: 0.2s;
}
.hero-line.hero-indent-2 {
    margin-left: calc(var(--space-xl) * 2);
    animation-delay: 0.3s;
}

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

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeIn 0.5s ease 0.5s forwards;
}

.meta-block {
    display: flex;
    align-items: baseline;
    gap: var(--space-md);
    font-size: 0.75rem;
}

.meta-label {
    color: var(--text-muted);
    min-width: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.65rem;
}

.meta-value {
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeIn 0.5s ease 0.8s forwards;
}

.scroll-text {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    opacity: 0.6;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.5; height: 50px; }
    50% { opacity: 0.2; height: 40px; }
}

@keyframes fadeIn {
    to { opacity: 1; }
}


.text-block {
    margin-bottom: var(--space-lg);
}

.text-block p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.info-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    opacity: 0.7;
}

.info-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}


.research-interests {
    margin-bottom: var(--space-xl);
}

.interests-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-md);
    opacity: 0.7;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border);
    padding: var(--space-xs) var(--space-md);
    transition: all var(--transition-base);
    letter-spacing: 0.03em;
    position: relative;
    overflow: hidden;
    z-index: 0;
}

.tag::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--text-primary);
    transform: translateY(100%);
    transition: transform var(--transition-base);
    z-index: -1;
}

.tag:hover {
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.tag:hover::before {
    transform: translateY(0);
}

.tag-sm {
    font-size: 0.6rem;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: var(--space-2xs) var(--space-sm);
    letter-spacing: 0.02em;
}

/* Research List */
.list-heading {
    font-weight: 700;
    margin-bottom: var(--space-md);
    margin-top: var(--space-lg);
}

.research-list {
    list-style: none;
    padding-left: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    border-left: 2px solid var(--border);
}

.research-list li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    padding-left: var(--space-sm);
    position: relative;
}

.research-list li::before {
    content: '•';
    position: absolute;
    left: calc(-1 * var(--space-sm));
    color: var(--text-muted);
}

/* Subsection Header */
.subsection-header {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border);
}

/* Notes Section */
.notes-content {
    padding: var(--space-xl) 0;
}

.notes-content p {
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    font-style: italic;
}

/* Publication - Clean card style */
.publication {
    border: none;
    border-bottom: 1px solid var(--border);
    padding: var(--space-xl) 0;
    transition: all var(--transition-base);
    background: transparent;
    position: relative;
    overflow: hidden;
}

.publication:last-child {
    border-bottom: none;
}

.publication::before {
    content: '';
    position: absolute;
    left: var(--space-xl);
    right: var(--space-xl);
    top: 0;
    height: 1px;
    background: linear-gradient(to right, var(--text-muted), transparent);
    opacity: 0.3;
}

.publication::after {
    content: '';
    display: none;
}

.publication:hover {
    background: rgba(128, 128, 128, 0.03);
}

[data-theme="dark"] .publication:hover {
    background: rgba(255, 255, 255, 0.03);
}

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

.pub-type {
    font-size: 0.55rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-2xs) 0;
}

.pub-status {
    font-size: 0.55rem;
    color: var(--bg-primary);
    letter-spacing: 0.1em;
    font-weight: 700;
    padding: var(--space-2xs) var(--space-sm);
    background: var(--text-primary);
    border: none;
}

.pub-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.pub-meta {
    margin-bottom: var(--space-md);
    padding: var(--space-sm) 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pub-venue {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

.pub-mentor {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    font-size: 0.7rem;
}

.mentor-label {
    color: var(--text-muted);
}

.mentor-value {
    color: var(--text-secondary);
}

.pub-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.blink {
    animation: blink 1.2s step-start infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}


.project {
    border: none;
    border-bottom: 1px solid var(--border);
    padding: var(--space-xl) 0;
    margin-bottom: 0;
    transition: all var(--transition-base);
    position: relative;
    background: transparent;
}

.project:last-child {
    border-bottom: none;
}

.project::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    width: 0;
    background: var(--text-muted);
    opacity: 0.3;
    transition: width var(--transition-base);
}

.project:hover {
    background: rgba(128, 128, 128, 0.02);
}

.project:hover::before {
    width: 100%;
}

[data-theme="dark"] .project:hover {
    background: rgba(255, 255, 255, 0.03);
}

.project::after {
    display: none;
}

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

.project-number {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 700;
    opacity: 0.4;
}

.project-type {
    font-size: 0.6rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.project-subtitle {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: var(--space-lg);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.tech {
    font-size: 0.6rem;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: var(--space-2xs) var(--space-xs);
    letter-spacing: 0.03em;
    transition: color var(--transition-fast);
}

.tech:hover {
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: var(--space-lg);
}

.project-link {
    font-size: 0.7rem;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.06em;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--text-muted);
    background: transparent;
}

.project-link::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--text-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    z-index: -1;
}

.project-link:hover {
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.project-link:hover::after {
    transform: scaleX(1);
}


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

.skill-category {
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border);
}

.skill-category:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.skill-label {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.skill {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: var(--space-2xs) 0;
    transition: color var(--transition-fast);
}

.skill:hover {
    color: var(--text-primary);
}

.skill::after {
    content: '/';
    margin: 0 var(--space-sm);
    color: var(--text-muted);
    opacity: 0.3;
}

.skill:last-child::after {
    content: '';
    margin: 0;
}


.experience-item {
    border: none;
    border-bottom: 1px solid var(--border);
    padding: var(--space-xl) 0;
    margin-bottom: 0;
    background: transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.experience-item:last-child {
    border-bottom: none;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    width: 0;
    background: var(--text-muted);
    opacity: 0.3;
    transition: width var(--transition-base);
}

.experience-item:hover {
    background: rgba(128, 128, 128, 0.02);
}

.experience-item:hover::before {
    width: 100%;
}

[data-theme="dark"] .experience-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

.exp-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.exp-org {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.exp-role {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.exp-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.exp-list li {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.65;
}


.achievement {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--border);
    align-items: baseline;
}

.achievement:first-child {
    padding-top: 0;
}

.achievement:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.achievement-date {
    font-size: 0.65rem;
    color: var(--text-muted);
    min-width: 100px;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.achievement-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}


.contact-block {
    border: none;
    border-top: 1px solid var(--border);
    padding: var(--space-xl) 0;
    background: transparent;
    position: relative;
}

.contact-block::before {
    display: none;
}

.contact-block:hover {
    background: transparent;
}

[data-theme="dark"] .contact-block:hover {
    background: transparent;
}

.contact-intro {
    margin-bottom: var(--space-xl);
}

.contact-intro p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact-opportunities {
    margin-bottom: var(--space-xl);
}

.opportunities-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-md);
    opacity: 0.7;
}

.opportunities-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.opportunities-list li {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.contact-cta {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

.cta-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--bg-primary);
    background: var(--text-primary);
    padding: var(--space-sm) var(--space-lg);
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.cta-link:hover {
    opacity: 0.85;
}

.cta-arrow {
    transition: transform var(--transition-fast);
}

.cta-link:hover .cta-arrow {
    transform: translateX(4px);
}

.cta-text {
    border-bottom: none;
    padding-bottom: 0;
}


.footer {
    margin-top: var(--space-4xl);
    padding-top: var(--space-xl);
    max-width: var(--content-max-width);
}

.footer-line {
    width: 100%;
    height: 1px;
    background: var(--border);
    margin-bottom: var(--space-xl);
}

.footer-content {
    display: flex;
    gap: var(--space-md);
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.6;
}

.footer-seasonal {
    margin-top: var(--space-lg);
    font-size: 0.6rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    opacity: 0.4;
    text-transform: uppercase;
}


.corner-decoration {
    position: fixed;
    z-index: 200;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-sm);
}

.corner-decoration.top-right {
    top: var(--space-xl);
    right: var(--space-xl);
}

.corner-text {
    font-size: 0.55rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    opacity: 0.6;
}

.theme-toggle {
    font-size: 0.65rem;
    color: var(--bg-primary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--text-primary);
    background: var(--text-primary);
    transition: all var(--transition-fast);
    cursor: pointer;
    font-weight: 700;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
    background: transparent;
}

/* Glitch Effect */
.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.glitch::before {
    color: var(--text-primary);
    clip-path: inset(0 0 65% 0);
    animation: glitch-top 3s infinite linear alternate-reverse;
}

.glitch::after {
    color: var(--text-primary);
    clip-path: inset(60% 0 0 0);
    animation: glitch-bottom 2.5s infinite linear alternate-reverse;
}

@keyframes glitch-top {
    0%, 92% { transform: translate(0); }
    93% { transform: translate(-2px, 1px); }
    94% { transform: translate(2px, -1px); }
    95% { transform: translate(-1px, 0); }
    96%, 100% { transform: translate(0); }
}

@keyframes glitch-bottom {
    0%, 90% { transform: translate(0); }
    91% { transform: translate(1px, 1px); }
    92% { transform: translate(-2px, 0); }
    93% { transform: translate(1px, -1px); }
    94%, 100% { transform: translate(0); }
}


.left-panel::after {
    content: '';
    position: absolute;
    right: -1px;
    top: 0;
    width: 2px;
    height: calc(var(--scroll-progress, 0) * 100%);
    background: var(--text-primary);
    transition: height 0.15s linear;
    opacity: 0.4;
}


.section {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section.revealed {
    opacity: 1;
    transform: translateY(0);
}

.section .publication,
.section .project,
.section .experience-item,
.section .achievement,
.section .skill-category {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section.revealed .publication,
.section.revealed .project,
.section.revealed .experience-item,
.section.revealed .achievement,
.section.revealed .skill-category {
    opacity: 1;
    transform: translateY(0);
}

.section.revealed .publication:nth-child(1),
.section.revealed .project:nth-child(1),
.section.revealed .experience-item:nth-child(1),
.section.revealed .achievement:nth-child(1),
.section.revealed .skill-category:nth-child(1) { transition-delay: 0.08s; }

.section.revealed .publication:nth-child(2),
.section.revealed .project:nth-child(2),
.section.revealed .experience-item:nth-child(2),
.section.revealed .achievement:nth-child(2),
.section.revealed .skill-category:nth-child(2) { transition-delay: 0.16s; }

.section.revealed .publication:nth-child(3),
.section.revealed .project:nth-child(3),
.section.revealed .experience-item:nth-child(3),
.section.revealed .achievement:nth-child(3),
.section.revealed .skill-category:nth-child(3) { transition-delay: 0.24s; }


.section {
    position: relative;
}

.section-header {
    position: relative;
}

.section[id="about"] .section-header::before { content: '00'; }
.section[id="news"] .section-header::before { content: '01'; }
.section[id="research"] .section-header::before { content: '02'; }
.section[id="projects"] .section-header::before { content: '03'; }
.section[id="skills"] .section-header::before { content: '04'; }
.section[id="notes"] .section-header::before { content: '05'; }
.section[id="experience"] .section-header::before { content: '06'; }
.section[id="contact"] .section-header::before { content: '07'; }

.section-header::before {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'VT323', monospace;
    font-size: 6rem;
    color: var(--text-primary);
    opacity: 0.06;
    pointer-events: none;
    line-height: 1;
    letter-spacing: 0.08em;
    font-weight: 400;
}


.nav-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--space-sm) - 2px);
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 6px;
    height: 6px;
    background: var(--text-primary);
    border-radius: 50%;
    transition: transform var(--transition-base), opacity var(--transition-base);
    opacity: 0;
}

.nav-item:hover::before {
    transform: translateY(-50%) scale(0.7);
    opacity: 0.4;
}

.nav-item.active::before {
    transform: translateY(-50%) scale(1);
    opacity: 1;
}

.nav-item.active {
    border-left-color: transparent;
}

.nav-item:hover {
    border-left-color: transparent;
}


.skill {
    border-radius: 2px;
    padding: var(--space-2xs) var(--space-xs);
    margin: -2px 0;
}

.skill:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.skill:hover::after {
    color: var(--bg-primary);
    opacity: 0.5;
}


.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 0 var(--space-lg);
    align-items: center;
    justify-content: space-between;
}

.mobile-brand {
    font-family: 'VT323', monospace;
    font-size: 1.4rem;
    letter-spacing: 0.02em;
    color: var(--text-primary);
}

.mobile-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.theme-toggle-mobile {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.theme-toggle-mobile:hover,
.theme-toggle-mobile:active {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: var(--space-sm);
    transition: all var(--transition-fast);
}

.menu-toggle:hover,
.menu-toggle:active {
    border-color: var(--text-primary);
}

.hamburger-line {
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    transform-origin: center;
}

.menu-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

[data-theme="dark"] .mobile-overlay {
    background: rgba(0, 0, 0, 0.5);
}


@media (max-width: 1400px) {
    :root {
        --left-panel-width: 420px;
    }
}

@media (max-width: 1200px) {
    :root {
        --left-panel-width: 380px;
    }

    .right-panel {
        padding: var(--space-2xl);
    }

    .name-line {
        font-size: 2rem;
    }
}

@media (max-width: 1024px) {
    :root {
        --left-panel-width: 320px;
    }

    html {
        font-size: 14px;
    }

    .name-line {
        font-size: 1.75rem;
    }

    .tagline-text {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    /* Show mobile header */
    .mobile-header {
        display: flex;
    }

    .mobile-overlay {
        display: block;
    }

    .brutalist-container {
        flex-direction: column;
    }

    .left-panel {
        position: fixed;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        border-right: 1px solid var(--border);
        border-bottom: none;
        padding: var(--space-xl);
        padding-top: 80px;
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        z-index: 100;
        overflow-y: auto;
    }

    .left-panel.open {
        transform: translateX(0);
    }

    .brand {
        margin-bottom: var(--space-xl);
    }

    .name-line {
        font-size: 1.8rem;
    }

    .nav-section {
        margin-bottom: var(--space-xl);
    }

    .nav-links {
        flex-direction: column;
        gap: var(--space-2xs);
    }

    .nav-item {
        padding: var(--space-md) var(--space-sm);
        margin-left: calc(-1 * var(--space-sm));
        padding-left: var(--space-sm);
        border-left: 2px solid transparent;
        border-bottom: none;
    }

    .nav-item:hover,
    .nav-item.active {
        border-left-color: var(--text-primary);
        border-bottom-color: transparent;
    }

    .nav-index {
        display: inline-block;
    }

    .nav-text {
        font-size: 0.95rem;
    }

    .socials {
        margin-top: auto;
        padding-top: var(--space-xl);
        padding-bottom: var(--space-xl);
    }

    .left-footer {
        display: none;
    }

    .left-panel::after {
        display: none;
    }

    .right-panel {
        margin-left: 0;
        padding: var(--space-xl);
        padding-top: 80px;
        min-height: 100vh;
    }

    .section {
        margin-bottom: var(--space-3xl);
    }

    .hero {
        min-height: 50vh;
    }

    .hero-line {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .hero-line.hero-indent,
    .hero-line.hero-indent-2 {
        margin-left: var(--space-md);
    }

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

    /* Hide desktop elements */
    .corner-decoration,
    .scroll-indicator,
    .utility-bar {
        display: none;
    }

    .achievement {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .achievement-date {
        min-width: auto;
    }

    .meta-block {
        flex-direction: column;
        gap: var(--space-2xs);
    }

    .meta-label {
        min-width: auto;
    }

    /* Improve touch targets */
    .nav-item,
    .social-link,
    .project-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .social-link {
        font-size: 1.3rem;
        padding: var(--space-md);
    }

    /* Cards on mobile */
    .project,
    .publication,
    .experience-item,
    .contact-block {
        padding: var(--space-lg) 0;
    }

    .project-links {
        flex-wrap: wrap;
        gap: var(--space-md);
    }

    .project-link {
        padding: var(--space-sm) 0;
    }

    /* Skills on mobile */
    .skill-items {
        gap: 0;
    }

    .skill {
        padding: var(--space-xs) 0;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: var(--space-sm);
        align-items: flex-start;
    }

    .footer-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }

    .mobile-header {
        padding: 0 var(--space-md);
    }

    .mobile-brand {
        font-size: 1.2rem;
    }

    .left-panel {
        width: 90%;
        max-width: none;
        padding: var(--space-lg);
        padding-top: 80px;
    }

    .right-panel {
        padding: var(--space-lg);
        padding-top: 80px;
    }

    .name-line {
        font-size: 1.5rem;
    }

    .hero-line {
        font-size: clamp(1.5rem, 10vw, 2rem);
    }

    .section-header {
        flex-wrap: wrap;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .section-line {
        width: 100%;
        order: 3;
        margin-top: var(--space-sm);
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    .project,
    .publication,
    .experience-item,
    .contact-block {
        padding: var(--space-md) 0;
    }

    .project-title {
        font-size: 1.15rem;
    }

    .pub-title {
        font-size: 1rem;
    }

    .exp-org {
        font-size: 1rem;
    }

    .text-block p,
    .project-desc,
    .contact-intro p {
        font-size: 0.95rem;
    }

    .nav-links {
        justify-content: flex-start;
    }

    .social-row {
        gap: var(--space-md);
    }

    /* Achievement layout */
    .achievement {
        padding: var(--space-md) 0;
    }

    .achievement-text {
        font-size: 0.9rem;
    }

    /* Research list */
    .research-list li {
        font-size: 0.9rem;
    }

    /* Tags */
    .project-tech {
        gap: var(--space-2xs);
    }

    .tech {
        font-size: 0.6rem;
        padding: 3px var(--space-xs);
    }

    .pub-tags {
        gap: var(--space-2xs);
    }

    .tag-sm {
        font-size: 0.6rem;
        padding: 2px var(--space-xs);
    }
}


@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .hero-line {
        opacity: 1;
        transform: none;
    }

    .hero-meta,
    .scroll-indicator {
        opacity: 1;
    }

    .section {
        opacity: 1;
        transform: none;
    }

    .section .publication,
    .section .project,
    .section .experience-item,
    .section .achievement,
    .section .skill-category {
        opacity: 1;
        transform: none;
    }
}


@media (max-height: 500px) and (orientation: landscape) {
    .mobile-header {
        height: 50px;
    }

    .left-panel {
        padding-top: 60px;
    }

    .right-panel {
        padding-top: 60px;
    }

    .hero {
        min-height: 80vh;
    }

    .section {
        margin-bottom: var(--space-2xl);
    }
}


@media (hover: none) and (pointer: coarse) {
    .project::before,
    .experience-item::before {
        width: 100%;
    }

    .project:hover,
    .experience-item:hover {
        transform: none;
    }

    .nav-item:hover .nav-text,
    .nav-item .nav-text {
        color: var(--text-secondary);
    }

    .nav-item.active .nav-text {
        color: var(--text-primary);
    }

    .project-link::after {
        display: none;
    }

    .social-link:hover {
        transform: none;
    }
}


@media print {
    .left-panel {
        display: none;
    }

    .right-panel {
        margin-left: 0;
    }

    #shader-bg,
    .scanlines,
    .utility-bar,
    .corner-decoration {
        display: none;
    }
}