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

:root {
    --bg:      #0b0b0b;
    --fg:      #ebebeb;
    --muted:   #5a5a5a;
    --subtle:  #1c1c1c;
    --surface: #111111;
    --accent:  #ffffff;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--fg);
    overflow-x: hidden;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ─── NAVBAR ──────────────────────────────────────────── */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    background: rgba(11, 11, 11, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--subtle);
}

.nav-logo a {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--fg);
    transition: all 0.3s;
}

/* ─── HERO ────────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 5%;
    padding-top: 60px;
    border-bottom: 1px solid var(--subtle);
    position: relative;
}

.hero-eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.2s forwards;
}

.hero-name {
    font-size: clamp(4rem, 11vw, 10rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 0.92;
    color: var(--fg);
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.4s forwards;
}

.hero-name .last {
    color: var(--muted);
    font-weight: 300;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    animation: fadeUp 0.7s ease 0.6s forwards;
}

.hero-role {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.meta-divider {
    width: 1px;
    height: 18px;
    background: var(--subtle);
}

.hero-socials {
    display: flex;
    gap: 1.4rem;
}

.hero-socials a {
    color: var(--muted);
    font-size: 1rem;
    text-decoration: none;
    transition: color 0.2s;
}

.hero-socials a:hover { color: var(--fg); }

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 5%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--muted);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.scroll-indicator::before {
    content: '';
    display: block;
    width: 36px;
    height: 1px;
    background: var(--muted);
}

/* ─── SECTION BASE ────────────────────────────────────── */
section {
    padding: 7rem 5%;
    border-bottom: 1px solid var(--subtle);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1.25rem;
    margin-bottom: 4rem;
}

.section-num {
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 400;
}

.section-title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--fg);
}

/* ─── SKILLS ──────────────────────────────────────────── */
.skills-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-tag {
    padding: 0.45rem 1rem;
    border: 1px solid var(--subtle);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--muted);
    cursor: default;
    transition: border-color 0.2s, color 0.2s;
}

.skill-tag:hover {
    border-color: var(--fg);
    color: var(--fg);
}

/* ─── EXPERIENCE & ACADEMICS (shared list style) ──────── */
.entry-list { display: flex; flex-direction: column; }

.entry-row {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 3rem;
    padding: 2.5rem 0;
    border-top: 1px solid var(--subtle);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.entry-row:last-child {
    border-bottom: 1px solid var(--subtle);
}

.entry-row.visible {
    opacity: 1;
    transform: translateY(0);
}

.entry-date {
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 400;
    letter-spacing: 0.04em;
    padding-top: 0.15rem;
    line-height: 1.6;
}

.entry-body h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--fg);
    margin-bottom: 0.2rem;
    letter-spacing: -0.01em;
}

.entry-org {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

.entry-body p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.75;
}

.entry-body ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 0.5rem;
}

.entry-body ul li {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.7;
    padding-left: 1rem;
    position: relative;
}

.entry-body ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--subtle);
    font-size: 0.75rem;
}

/* ─── PROJECTS ────────────────────────────────────────── */
.projects-list { display: flex; flex-direction: column; }

.project-item {
    display: grid;
    grid-template-columns: 44px 1fr 24px;
    align-items: start;
    gap: 2rem;
    padding: 2.5rem 0;
    border-top: 1px solid var(--subtle);
    text-decoration: none;
    color: inherit;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.project-item.no-link {
    cursor: default;
}

.project-item:last-child {
    border-bottom: 1px solid var(--subtle);
}

.project-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-item:not(.no-link):hover .project-title { color: var(--accent); }
.project-item:not(.no-link):hover .project-arrow { color: var(--fg); transform: translate(3px, -3px); }

.project-num {
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.12em;
    font-weight: 400;
    padding-top: 0.2rem;
}

.project-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--fg);
    margin-bottom: 0.45rem;
    letter-spacing: -0.01em;
    transition: color 0.2s;
}

.project-context {
    font-size: 0.72rem;
    color: var(--muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

.project-desc {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.75;
    max-width: 580px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.75rem;
}

.project-tag {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface);
    padding: 0.18rem 0.55rem;
    border: 1px solid var(--subtle);
}

.project-arrow {
    font-size: 0.75rem;
    color: var(--muted);
    transition: all 0.2s;
    padding-top: 0.25rem;
}

/* ─── AWARDS ──────────────────────────────────────────── */
.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1px;
    background: var(--subtle);
    border: 1px solid var(--subtle);
}

.award-item {
    background: var(--bg);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.award-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.award-img-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    cursor: pointer;
    background: var(--surface);
}

.award-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(25%);
    transition: filter 0.35s ease, transform 0.35s ease;
}

.award-img-wrap:hover img {
    filter: grayscale(0%);
    transform: scale(1.04);
}

.award-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.38);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.award-img-wrap:hover .award-overlay { opacity: 1; }

.award-overlay i {
    color: var(--fg);
    font-size: 1.2rem;
}

.award-info {
    padding: 1.1rem 1.4rem 1.4rem;
    border-top: 1px solid var(--subtle);
}

.award-info h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--fg);
    margin-bottom: 0.2rem;
}

.award-issuer {
    font-size: 0.72rem;
    color: var(--muted);
}

.award-date {
    font-size: 0.68rem;
    color: var(--muted);
    letter-spacing: 0.05em;
    margin-top: 0.1rem;
}

/* ─── FOOTER ──────────────────────────────────────────── */
footer {
    padding: 2rem 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-left {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
}

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

.footer-right a {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-right a:hover { color: var(--fg); }

/* ─── BACK TO TOP ─────────────────────────────────────── */
#backToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 38px;
    height: 38px;
    background: var(--surface);
    border: 1px solid var(--subtle);
    color: var(--muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s;
    font-size: 0.75rem;
    z-index: 50;
}

#backToTop.visible { opacity: 1; pointer-events: all; }
#backToTop:hover { border-color: var(--fg); color: var(--fg); }

/* ─── MODAL ───────────────────────────────────────────── */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0,0,0,0.93);
    align-items: center;
    justify-content: center;
}

.modal.active { display: flex; }

.modal-inner {
    position: relative;
    max-width: 88vw;
    max-height: 88vh;
}

.modal-inner img {
    max-width: 100%;
    max-height: 88vh;
    object-fit: contain;
    border: 1px solid var(--subtle);
    display: block;
}

.modal-close {
    position: fixed;
    top: 1.5rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--muted);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

.modal-close:hover { color: var(--fg); }

/* ─── ANIMATIONS ──────────────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ─── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--subtle);
    }

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

    .nav-links li { padding: 0 5%; }

    .nav-links a {
        display: block;
        padding: 0.9rem 0;
        border-bottom: 1px solid var(--subtle);
        font-size: 0.82rem;
    }

    .hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.9rem;
    }

    .meta-divider { display: none; }
    .scroll-indicator { display: none; }

    .entry-row {
        grid-template-columns: 80px 1fr;
        gap: 1.5rem;
    }

    .project-item {
        grid-template-columns: 36px 1fr 20px;
        gap: 1.25rem;
    }

    footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .entry-row {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .entry-date { font-size: 0.68rem; }

    .project-item {
        grid-template-columns: 1fr 20px;
    }

    .project-num { display: none; }
}