:root {
    --bg: #f5f5fb;
    --surface: #ffffff;
    --primary: #5c2cff;
    --primary-dark: #4320c6;
    --text: #16202a;
    --muted: #5b6275;
    --border: rgba(22, 32, 42, 0.1);
    --shadow: 0 25px 60px rgba(27, 21, 66, 0.08);
}

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

body {
    margin: 0;
    font-family: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.container {
    width: min(1200px, 90%);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(245, 245, 251, 0.9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 1rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav {
    flex: 1;
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    font-weight: 500;
}

.nav-menu a {
    position: relative;
    padding-bottom: 0.25rem;
}

.nav-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.2s ease;
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
    transform: scaleX(1);
}

.nav-socials {
    display: flex;
    gap: 0.75rem;
    font-size: 1.1rem;
}

.nav-socials a {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    transition: all 0.2s ease;
}

.nav-socials a:hover {
    background: var(--primary);
    color: #fff;
    border-color: transparent;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: #fff;
    justify-content: center;
    align-items: center;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
}

.hero {
    padding: 5rem 0 3rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    align-items: center;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin: 0 0 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
}

.hero-description {
    margin-bottom: 1.5rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.hero-tags span {
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(92, 44, 255, 0.08);
    color: var(--primary-dark);
    font-size: 0.9rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 999px;
    padding: 0.85rem 1.7rem;
    font-weight: 600;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    border: 1px solid var(--border);
    background: #fff;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.hero-stats li {
    min-width: 120px;
}

.hero-stats strong {
    display: block;
    font-size: 1.4rem;
}

.hero-visual {
    position: relative;
}

.hero-image {
    position: relative;
    width: 100%;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
    isolation: isolate;
}

.hero-image::after {
    content: "";
    position: absolute;
    inset: -30px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(92, 44, 255, 0.25), transparent 60%);
    filter: blur(5px);
    z-index: -2;
    animation: pulseGlow 10s ease-in-out infinite;
}

.hero-image::before {
    content: "";
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(92, 44, 255, 0.6), rgba(255, 119, 189, 0.4));
    z-index: -1;
    filter: blur(2px);
    animation: float 9s ease-in-out infinite;
}

.hero-image img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    clip-path: circle(45% at 50% 45%);
    box-shadow: 0 25px 60px rgba(27, 21, 66, 0.25);
    animation: float 7s ease-in-out infinite;
    background: #fff;
}

.hero-card {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow);
    font-size: 0.95rem;
    animation: pulseGlow 8s ease-in-out infinite;
}

.hero-card-meta {
    display: block;
    margin-top: 0.5rem;
    color: var(--primary-dark);
    font-weight: 600;
}

.section {
    padding: 5rem 0;
}

[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    transition-delay: var(--delay, 0s);
}

[data-animate="right"] {
    transform: translateX(40px);
}

[data-animate="left"] {
    transform: translateX(-40px);
}

[data-animate="scale"] {
    transform: scale(0.95);
}

[data-animate].is-visible {
    opacity: 1;
    transform: none;
}

.profile-card {
    background: #fff;
    padding: 2rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    font-size: 1.05rem;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.5rem;
    align-items: start;
}

.about-highlights {
    display: grid;
    gap: 1.5rem;
}

.about-highlights li {
    padding: 1.25rem;
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-highlights li:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 45px rgba(27, 21, 66, 0.1);
}

.experience {
    background: #fff;
}

.timeline {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.timeline article {
    padding-left: 1.5rem;
    border-left: 2px solid var(--primary);
}

.timeline-year {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
}

.timeline-list {
    margin: 0.75rem 0 0;
    padding-left: 1.2rem;
    display: grid;
    gap: 0.4rem;
}

.timeline-list li {
    color: var(--muted);
}

.services {
    background: var(--bg);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.cards-grid article {
    background: #fff;
    padding: 1.5rem;
    border-radius: 18px;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cards-grid article:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(27, 21, 66, 0.12);
}

.projects {
    background: #fff;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.project-grid article {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-grid article:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(27, 21, 66, 0.18);
}

.covid-project {
    gap: 1.5rem;
}

.dashboard-panel {
    background: var(--surface);
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: inset 0 0 0 1px var(--border);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.dashboard-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 1.5rem;
    justify-content: space-between;
}

.dashboard-controls label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    display: block;
    margin-bottom: 0.35rem;
}

.dashboard-controls select {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.6rem 1rem;
    font-weight: 600;
    min-width: 180px;
    background: #fff;
    font-family: inherit;
}

.data-note {
    margin: 0;
    font-size: 0.85rem;
    color: var(--muted);
}

.dashboard-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.dashboard-metric {
    padding: 1rem;
    border-radius: 14px;
    background: rgba(92, 44, 255, 0.04);
}

.dashboard-metric span {
    font-size: 0.85rem;
    color: var(--muted);
}

.dashboard-metric strong {
    display: block;
    font-size: 1.5rem;
    margin-top: 0.15rem;
}

.dashboard-metric small {
    display: block;
    margin-top: 0.25rem;
    color: var(--primary-dark);
    font-weight: 600;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.dashboard-grid canvas {
    width: 100%;
    min-height: 220px;
}

.project-grid img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.project-grid div {
    padding: 1.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    font-size: 0.85rem;
}

.tags li {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(92, 44, 255, 0.1);
    color: var(--primary-dark);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.75rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.project-link::after {
    content: "↗";
    font-size: 0.9rem;
}

.sql-showcase,
.analysis-showcase {
    margin-top: 1rem;
    background: #0f172a;
    color: #cbd5f5;
    border-radius: 18px;
    padding: 1.1rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.sql-showcase pre,
.analysis-showcase pre {
    margin: 0;
    overflow-x: auto;
    font-size: 0.85rem;
    background: rgba(0, 0, 0, 0.35);
    padding: 0.85rem;
    border-radius: 12px;
}

.sql-showcase code,
.analysis-showcase code {
    font-family: "Fira Code", "Space Mono", Consolas, monospace;
    color: #9ce0ff;
}

.sql-table-wrapper,
.analysis-table-wrapper {
    margin-top: 1rem;
    overflow-x: auto;
}

.sql-table-wrapper table,
.analysis-table-wrapper table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.sql-table-wrapper th,
.sql-table-wrapper td,
.analysis-table-wrapper th,
.analysis-table-wrapper td {
    padding: 0.4rem 0.6rem;
    text-align: left;
}

.sql-table-wrapper th,
.analysis-table-wrapper th {
    color: #a5b4fc;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.sql-table-wrapper tr:not(:last-child) td,
.analysis-table-wrapper tr:not(:last-child) td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sql-footnote,
.analysis-footnote {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.65);
}

.insight {
    background: var(--bg);
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.insight-list {
    display: grid;
    gap: 1rem;
    padding: 1.5rem;
    background: #fff;
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.education {
    background: #fff;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.education-grid article {
    background: #fff;
    padding: 1.5rem;
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.education-grid ul {
    padding-left: 1.2rem;
    margin: 0.5rem 0 0;
}

.list-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.list-columns ul {
    background: #fff;
    padding: 1.5rem;
    border-radius: 18px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 0.75rem;
}

.card-list {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.card-list article {
    background: #fff;
    padding: 1.2rem 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-list article:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 45px rgba(27, 21, 66, 0.1);
}

.memberships {
    background: var(--bg);
}

.skills {
    background: #fff;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.pill-list li {
    background: rgba(92, 44, 255, 0.1);
    color: var(--primary-dark);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.9rem;
}

.contact {
    background: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    align-items: center;
}

.contact-card {
    background: var(--primary);
    color: #fff;
    padding: 2rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.contact-card .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: transparent;
    color: #fff;
}

.contact-card .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.contact-card::after {
    content: "";
    position: absolute;
    inset: 10%;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    pointer-events: none;
    animation: pulseGlow 10s ease-in-out infinite;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.contact-details {
    display: grid;
    gap: 1rem;
}

.contact-details li {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    padding: 1rem 1.5rem;
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow);
}

.contact-details i {
    color: var(--primary);
}

.site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.8);
    padding: 1.5rem 0;
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    font-weight: 600;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
    100% {
        transform: translateY(0);
    }
}

@keyframes pulseGlow {
    0% {
        box-shadow: var(--shadow);
    }
    50% {
        box-shadow: 0 30px 70px rgba(92, 44, 255, 0.25);
    }
    100% {
        box-shadow: var(--shadow);
    }
}

@media (prefers-reduced-motion: reduce) {
    [data-animate],
    [data-animate].is-visible {
        opacity: 1;
        transform: none !important;
        transition: none;
    }

    .hero-image img,
    .hero-card,
    .contact-card::after {
        animation: none;
    }

    .about-highlights li,
    .cards-grid article,
    .project-grid article,
    .card-list article {
        transition: none;
    }
}

@media (max-width: 960px) {
    .nav-container {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: flex;
    }

    .nav {
        order: 3;
        width: 100%;
    }

    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 1rem 0;
        display: none;
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-socials {
        order: 2;
    }
}

@media (max-width: 640px) {
    .hero-stats {
        flex-direction: column;
    }

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

    .contact-actions {
        justify-content: center;
    }

    .footer-grid {
        flex-direction: column;
        text-align: center;
    }
}