/* ============================================
   Base & Variables
   ============================================ */

:root {
    --color-bg: #f6f1eb;
    --color-bg-warm: #efe8df;
    --color-text: #1a1a1a;
    --color-text-secondary: #5a5549;
    --color-text-tertiary: #8a8278;
    --color-accent: #2b2b2b;
    --color-border: #d4cec5;
    --color-border-light: #e6e0d7;
    --color-link: #1a1a1a;
    --color-link-hover: #5a5549;

    --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 10rem;

    --max-width: 1100px;
}

/* ============================================
   Reset & Base
   ============================================ */

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

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(210, 195, 175, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(200, 185, 165, 0.1) 0%, transparent 50%);
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-link-hover);
}

ul {
    list-style: none;
}

em {
    font-style: italic;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(246, 241, 235, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: padding 0.3s ease;
}

.nav-name {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav-name-full {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.nav-name-compact {
    position: absolute;
    left: 0;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--color-text);
}

.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--color-text);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-scrolled .nav-inner {
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.nav-scrolled .nav-name-full {
    opacity: 0;
    transform: translateY(-4px);
}

.nav-scrolled .nav-name-compact {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Hero (Home page)
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-lg);
    align-items: center;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(3.5rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-description {
    font-family: var(--font-serif);
    font-size: clamp(1.15rem, 2vw, 1.4rem);
    line-height: 1.7;
    max-width: 600px;
    color: var(--color-text-secondary);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.hero-photo {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero-photo img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    object-position: center top;
    border-radius: 4px;
    filter: grayscale(10%);
}

.cursor {
    animation: blink 1s step-end infinite;
}

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

.hero-cta {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    margin-top: 2rem;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.6s forwards;
}

.hero-cta:hover {
    color: var(--color-text);
    border-color: var(--color-text);
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Page Header (inner pages)
   ============================================ */

.page-header {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--space-xl) + 60px) 2rem var(--space-lg);
}

.page-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.page-intro {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-top: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.2s forwards;
}

/* ============================================
   Sections
   ============================================ */

.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl) 2rem;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

/* ============================================
   Featured Cards
   ============================================ */

.featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.featured-card {
    display: block;
    border-radius: 4px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid var(--color-border-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    color: var(--color-text);
}

.featured-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.featured-card:hover .featured-image img {
    transform: scale(1.03);
}

.featured-info {
    padding: 1.5rem;
}

.featured-pub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
}

.featured-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    line-height: 1.3;
    margin-top: 0.5rem;
    letter-spacing: -0.01em;
}

.featured-desc {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

.featured-card-text {
    border-left: 3px solid var(--color-text);
}

.featured-card-text .featured-info {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 200px;
}

.featured-cta {
    margin-top: var(--space-lg);
    text-align: center;
}

.cta-link {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-text);
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--color-border);
    transition: border-color 0.3s ease;
}

.cta-link:hover {
    border-color: var(--color-text);
    color: var(--color-text);
}

/* ============================================
   Work Section
   ============================================ */

.publication-group {
    margin-bottom: var(--space-lg);
}

.publication-name {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-tertiary);
    margin-bottom: 1rem;
}

.story-list {
    display: flex;
    flex-direction: column;
}

.story {
    display: grid;
    grid-template-columns: 60px 1fr 30px;
    align-items: baseline;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: all 0.25s ease;
    gap: 1.5rem;
}

.story:hover {
    padding-left: 1rem;
    background: rgba(0, 0, 0, 0.015);
}

.story-year {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    font-variant-numeric: tabular-nums;
}

.story-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.4;
    font-weight: 400;
}

.story-arrow {
    font-size: 1rem;
    color: var(--color-text-tertiary);
    transition: transform 0.25s ease, color 0.25s ease;
    justify-self: end;
}

.story:hover .story-arrow {
    transform: translateX(4px);
    color: var(--color-text);
}

/* Featured stories with thumbnails on work page */
.story-featured {
    grid-template-columns: 180px 1fr 30px;
    align-items: center;
    padding: 1.25rem 0;
}

.story-thumb {
    border-radius: 3px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.story-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.story-featured:hover .story-thumb img {
    transform: scale(1.05);
}

.story-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.work-note {
    margin-top: var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
}

.work-note a {
    color: var(--color-text-secondary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: var(--color-border);
}

.work-note a:hover {
    text-decoration-color: var(--color-text);
}

/* ============================================
   About Section
   ============================================ */

.about-hero {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.about-photo {
    position: sticky;
    top: calc(60px + 2rem);
}

.about-photo img {
    width: 100%;
    border-radius: 4px;
    filter: grayscale(10%);
}

.about-text p {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Timeline (Experience & Education)
   ============================================ */

.timeline {
    display: flex;
    flex-direction: column;
}

.timeline-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.timeline-period {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    padding-top: 0.2rem;
}

.timeline-content h3 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 500;
}

.timeline-role {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

/* ============================================
   Awards Section
   ============================================ */

.awards-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
}

.award {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.award:nth-child(odd) {
    padding-right: 2rem;
    border-right: 1px solid var(--color-border-light);
}

.award:nth-child(even) {
    padding-left: 2rem;
}

.award-name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 500;
}

.award-detail {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* ============================================
   Contact Page
   ============================================ */

.contact-page {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

.contact-page-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    padding: var(--space-xl) 0;
}

.contact-heading {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.contact-intro {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.2s forwards;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid var(--color-border-light);
    border-radius: 4px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    background: rgba(255, 255, 255, 0.6);
    color: var(--color-text);
}

.contact-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
}

.contact-handle {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 500;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem;
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.footer p::before {
    content: '$ ';
    color: var(--color-border);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.footer-links a:hover {
    color: var(--color-text);
}

/* ============================================
   Animations
   ============================================ */

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(246, 241, 235, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.25rem;
        border-bottom: 1px solid var(--color-border-light);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.open span:first-child {
        transform: rotate(45deg) translate(2px, 2px);
    }

    .nav-toggle.open span:last-child {
        transform: rotate(-45deg) translate(2px, -2px);
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .hero-photo {
        order: -1;
        max-width: 250px;
    }

    .hero-photo img {
        height: 300px;
    }

    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4.5rem);
    }

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

    .story {
        grid-template-columns: 50px 1fr 24px;
        gap: 1rem;
    }

    .story-featured {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .story-thumb {
        max-width: 100%;
    }

    .awards-list {
        grid-template-columns: 1fr;
    }

    .award:nth-child(odd) {
        padding-right: 0;
        border-right: none;
    }

    .award:nth-child(even) {
        padding-left: 0;
    }

    .about-hero {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .about-photo {
        position: static;
        max-width: 250px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

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

    .section {
        padding: var(--space-lg) 1.5rem;
    }

    .page-header {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .nav-inner {
        padding: 1rem 1.5rem;
    }

    .hero {
        padding: 0 1.5rem;
    }

    .footer {
        padding: 2rem 1.5rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

    .contact-card {
        padding: 1.5rem;
    }
}