:root {
    --ink-950: #07111f;
    --ink-900: #0e1f35;
    --ink-700: #30445f;
    --ink-500: #516683;
    --accent: #17b4ac;
    --accent-strong: #109086;
    --highlight: #f97316;
    --surface: #f5f7fb;
    --surface-strong: #ffffff;
    --border: rgba(14, 31, 53, 0.14);
    --ring: rgba(23, 180, 172, 0.35);
    --shadow-sm: 0 8px 20px rgba(14, 31, 53, 0.08);
    --shadow-md: 0 22px 45px rgba(14, 31, 53, 0.11);
    --radius-lg: 22px;
    --radius-md: 14px;
    --container: 1120px;
    --font-display: "Fraunces", "Times New Roman", serif;
    --font-sans: "Manrope", "Segoe UI", sans-serif;
    font-size: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--ink-900);
    line-height: 1.65;
    background:
        radial-gradient(circle at 92% 8%, rgba(23, 180, 172, 0.13) 0, rgba(23, 180, 172, 0) 34%),
        radial-gradient(circle at 10% 92%, rgba(249, 115, 22, 0.08) 0, rgba(249, 115, 22, 0) 30%),
        linear-gradient(180deg, #f8fbff 0%, #f3f6fb 44%, #eef2f9 100%);
    min-height: 100vh;
}

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

a {
    color: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--ring);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 1500;
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
    padding: 0.65rem 0.9rem;
    border-radius: 999px;
    background: var(--accent);
    color: #03221f;
    font-weight: 700;
}

.site-header {
    position: relative;
    color: #f8fbff;
    background:
        linear-gradient(150deg, #09182d 0%, #102744 48%, #133153 100%);
    overflow: hidden;
    padding-bottom: clamp(3.2rem, 7vw, 5.2rem);
}

.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 82% 20%, rgba(23, 180, 172, 0.3) 0, rgba(23, 180, 172, 0) 35%),
        radial-gradient(circle at 24% 82%, rgba(249, 115, 22, 0.18) 0, rgba(249, 115, 22, 0) 27%);
    pointer-events: none;
}

.nav {
    width: min(var(--container), calc(100% - 2rem));
    margin: 0 auto;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, rgba(36, 38, 43, 0.92), rgba(52, 55, 61, 0.88));
    backdrop-filter: blur(16px);
    border: 1px solid rgba(214, 208, 196, 0.26);
    border-radius: 0 0 18px 18px;
    padding-inline: clamp(1rem, 2.5vw, 1.5rem);
    box-shadow: 0 10px 30px rgba(7, 9, 12, 0.28);
}

.logo {
    display: inline-flex;
    align-items: center;
}

.logo img {
    width: auto;
    height: clamp(44px, 5vw, 62px);
    max-width: 180px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
}

.nav-toggle {
    border: 0;
    padding: 0;
    margin: 0;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    cursor: pointer;
    display: grid;
    place-content: center;
    gap: 0.26rem;
}

.nav-toggle span {
    display: block;
    width: 21px;
    height: 2px;
    border-radius: 999px;
    background: #e9f5ff;
}

.nav-links {
    list-style: none;
    margin: 0;
    padding: 1rem 1.15rem;
    position: absolute;
    right: 0.8rem;
    top: calc(100% + 0.4rem);
    border-radius: 14px;
    background: rgba(35, 37, 41, 0.98);
    border: 1px solid rgba(223, 216, 201, 0.2);
    min-width: 220px;
    display: grid;
    gap: 0.65rem;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-links a {
    display: inline-flex;
    text-decoration: none;
    color: #f1efe9;
    font-size: 0.97rem;
    font-weight: 600;
    position: relative;
}

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

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

.hero {
    width: min(var(--container), calc(100% - 2rem));
    margin: 0 auto;
    padding-top: clamp(2rem, 5.4vw, 4rem);
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 980px;
}

.eyebrow {
    margin: 0;
    color: #89e8e1;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    font-size: 0.76rem;
    font-weight: 700;
}

.hero h1 {
    margin: 0.5rem 0 0;
    font-family: var(--font-display);
    font-size: clamp(2.3rem, 7vw, 4.5rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.tagline {
    margin: 1rem 0 0;
    font-size: clamp(1.06rem, 2.35vw, 1.42rem);
    color: #f0f7ff;
    font-weight: 700;
}

.hero-copy {
    margin: 1rem 0 0;
    max-width: 74ch;
    color: #d3e2f4;
    font-size: 1.03rem;
}

.open-to-list {
    list-style: none;
    margin: 1.35rem 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.open-to-list li {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    color: #e4f0ff;
    font-size: 0.83rem;
    font-weight: 600;
}

.hero-cta {
    margin-top: 1.35rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.hero-metrics {
    margin-top: 1.8rem;
    display: grid;
    gap: 0.8rem;
    grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
}

.hero-metrics article {
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.08);
    padding: 0.85rem 0.95rem;
}

.hero-metrics strong {
    display: block;
    color: #f8fdff;
    font-size: 1.3rem;
    line-height: 1.1;
}

.hero-metrics span {
    color: #bcd0e9;
    font-size: 0.82rem;
    font-weight: 600;
}

main {
    width: min(var(--container), calc(100% - 2rem));
    margin: 0 auto;
    padding: clamp(3rem, 7vw, 5rem) 0 5rem;
}

.section {
    margin-bottom: clamp(2.4rem, 5vw, 4.2rem);
    scroll-margin-top: 6rem;
}

.section.light {
    background: var(--surface-strong);
    border: 1px solid rgba(14, 31, 53, 0.09);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
    padding: clamp(1.3rem, 3.5vw, 2.4rem);
}

.section-header h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.55rem, 4vw, 2.25rem);
    line-height: 1.2;
    color: var(--ink-950);
}

.section-header p {
    margin: 0.45rem 0 0;
    color: var(--ink-500);
    font-weight: 500;
}

.about-grid {
    margin-top: 1.2rem;
    display: grid;
    gap: 1.3rem;
}

.about-grid p {
    margin: 0;
    max-width: 74ch;
}

.value-list {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.55rem;
    color: var(--ink-700);
}

.impact-grid {
    margin-top: 1.4rem;
    display: grid;
    gap: 0.95rem;
}

.impact-card {
    background: linear-gradient(150deg, rgba(23, 180, 172, 0.14), rgba(23, 180, 172, 0.05));
    border: 1px solid rgba(23, 180, 172, 0.26);
    border-radius: 14px;
    padding: 1rem 1rem 1.1rem;
}

.impact-number {
    font-size: 1.8rem;
    line-height: 1;
    color: var(--accent-strong);
    font-weight: 800;
}

.impact-label {
    margin-top: 0.35rem;
    color: var(--ink-700);
    font-size: 0.92rem;
    font-weight: 600;
}

.timeline {
    margin-top: 1.6rem;
    border-left: 2px solid rgba(14, 31, 53, 0.16);
    padding-left: 1rem;
    display: grid;
    gap: 1.4rem;
}

.timeline-item {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(14, 31, 53, 0.09);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.1rem 1rem;
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -1.45rem;
    top: 1.1rem;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--highlight);
    border: 2px solid #fff;
}

.timeline-item h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--ink-950);
}

.timeline-item .role {
    margin: 0.2rem 0 0;
    font-weight: 700;
}

.timeline-item .meta {
    margin: 0.2rem 0 0.8rem;
    color: var(--ink-500);
    font-size: 0.9rem;
}

.timeline-item ul {
    margin: 0;
    padding-left: 1rem;
    color: var(--ink-700);
    display: grid;
    gap: 0.43rem;
}

.role-details {
    margin-top: 0.9rem;
    border-top: 1px solid var(--border);
    padding-top: 0.7rem;
}

.role-details summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--ink-900);
}

.role-details ul {
    margin-top: 0.7rem;
}

.project-grid {
    margin-top: 1.4rem;
    display: grid;
    gap: 1rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: #ffffff;
    border: 1px solid rgba(14, 31, 53, 0.11);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    padding: 1.15rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.project-card:hover,
.project-card:focus-within {
    transform: translateY(-4px);
    box-shadow: 0 18px 36px rgba(14, 31, 53, 0.14);
}

.project-label {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font-size: 0.73rem;
    font-weight: 800;
    color: var(--accent-strong);
}

.project-card h3 {
    margin: 0;
    font-size: 1.24rem;
    color: var(--ink-950);
}

.project-card p {
    margin: 0;
}

.project-details {
    margin: 0;
    padding-left: 1rem;
    display: grid;
    gap: 0.34rem;
    color: var(--ink-700);
    font-size: 0.95rem;
}

.video-embed {
    position: relative;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: rgba(8, 12, 20, 0.22);
    border: 1px solid rgba(14, 31, 53, 0.12);
}

.video-embed iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-fallback {
    margin-top: 0.35rem;
}

.skill-category-grid {
    margin-top: 1.3rem;
    display: grid;
    gap: 1rem;
}

.skill-category {
    padding: 1.1rem;
    border: 1px solid rgba(14, 31, 53, 0.1);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.72);
    box-shadow: var(--shadow-sm);
}

.skill-category h3 {
    margin: 0;
    font-size: 1.02rem;
    color: var(--ink-900);
}

.pill-grid {
    margin-top: 0.8rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pill {
    display: inline-flex;
    padding: 0.38rem 0.72rem;
    border-radius: 999px;
    border: 1px solid rgba(23, 180, 172, 0.28);
    color: var(--ink-900);
    background: rgba(23, 180, 172, 0.09);
    font-size: 0.83rem;
    font-weight: 600;
}

.credentials-grid {
    margin-top: 1.2rem;
    display: grid;
    gap: 1rem;
}

.card {
    border-radius: var(--radius-md);
    border: 1px solid rgba(14, 31, 53, 0.1);
    background: rgba(250, 252, 255, 0.95);
    padding: 1rem;
}

.card h3 {
    margin: 0 0 0.6rem;
    font-size: 1.07rem;
    color: var(--ink-900);
}

.simple-list {
    margin: 0;
    padding-left: 1rem;
    display: grid;
    gap: 0.45rem;
    color: var(--ink-700);
}

.award-meta {
    margin: 0 0 0.45rem;
    color: var(--ink-500);
    font-weight: 600;
    font-size: 0.92rem;
}

.award-desc {
    margin: 0;
    color: var(--ink-700);
}

.contact-panel {
    margin-top: 1.2rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(14, 31, 53, 0.1);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(249, 252, 255, 0.88));
    box-shadow: var(--shadow-md);
    padding: clamp(1rem, 3vw, 1.5rem);
}

.contact-panel p {
    margin: 0 0 0.6rem;
}

.contact-panel a {
    color: var(--accent-strong);
    text-decoration: none;
    font-weight: 700;
}

.contact-panel a:hover,
.contact-panel a:focus-visible {
    text-decoration: underline;
}

.contact-actions {
    margin-top: 0.95rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 700;
    padding: 0.72rem 1.1rem;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn.primary {
    color: #03201f;
    background: linear-gradient(140deg, var(--accent), #2bcfc5);
    box-shadow: 0 12px 24px rgba(23, 180, 172, 0.3);
}

.btn.primary:hover,
.btn.primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 15px 28px rgba(23, 180, 172, 0.36);
}

.btn.secondary {
    color: #f2f9ff;
    background: transparent;
    border-color: rgba(255, 255, 255, 0.55);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
    border-color: var(--accent);
    color: #c8fff8;
}

.btn.ghost {
    color: var(--ink-950);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(14, 31, 53, 0.18);
}

.btn.ghost:hover,
.btn.ghost:focus-visible {
    border-color: var(--accent-strong);
    color: var(--ink-950);
}

.btn.tertiary {
    color: var(--ink-900);
    background: rgba(14, 31, 53, 0.06);
    border-color: rgba(14, 31, 53, 0.1);
}

.btn.tertiary:hover,
.btn.tertiary:focus-visible {
    border-color: var(--accent-strong);
}

.back-to-top {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 999px;
    background: var(--ink-900);
    color: #f8fdff;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

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

.js .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.js .reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 700px) {
    .impact-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .credentials-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 980px) {
    .nav-toggle {
        display: none;
    }

    .nav-links {
        position: static;
        min-width: initial;
        display: flex;
        align-items: center;
        flex-direction: row;
        gap: 1.35rem;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .hero {
        padding-top: clamp(2.6rem, 5vw, 4rem);
    }

    .about-grid {
        grid-template-columns: 1.25fr 1fr;
        gap: 1.8rem;
        align-items: start;
    }

    .impact-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .skill-category-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}