:root {
    --bg: #0b1020;
    --bg2: #0b132e;
    --panel: rgba(255, 255, 255, 0.06);
    --panel-2: rgba(255, 255, 255, 0.08);
    --text: rgba(255, 255, 255, 0.92);
    --muted: rgba(255, 255, 255, 0.68);
    --border: rgba(255, 255, 255, 0.14);
    --shadow: rgba(0, 0, 0, 0.35);
    --accent: #8b5cf6;
    --accent-2: #22d3ee;
    --focus: rgba(34, 211, 238, 0.55);
    --radius: 16px;
    --radius-sm: 12px;
    --max: 1100px;
}

html[data-theme='light'] {
    --bg: #f7f7fb;
    --bg2: #eef2ff;
    --panel: rgba(17, 24, 39, 0.04);
    --panel-2: rgba(17, 24, 39, 0.06);
    --text: rgba(17, 24, 39, 0.92);
    --muted: rgba(17, 24, 39, 0.68);
    --border: rgba(17, 24, 39, 0.12);
    --shadow: rgba(0, 0, 0, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(1000px 600px at 20% 0%, rgba(139, 92, 246, 0.24), transparent 55%),
        radial-gradient(900px 550px at 85% 10%, rgba(34, 211, 238, 0.18), transparent 60%),
        linear-gradient(160deg, var(--bg), var(--bg2));
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji',
        'Segoe UI Emoji';
    line-height: 1.55;
}

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

a {
    color: inherit;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    text-decoration-thickness: 2px;
}

:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 3px;
    border-radius: 14px;
}

.container {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 clamp(24px, 4vw, 56px);
}

.section {
    padding-top: 56px;
    padding-bottom: 56px;
    padding-block: 56px;
}

.skip-link {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 10px 12px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    transform: translateY(-200%);
    transition: transform 160ms ease;
    z-index: 1000;
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

html[data-theme='light'] .site-header {
    background: rgba(255, 255, 255, 0.65);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 14px;
    padding-bottom: 14px;
    padding-block: 14px;
}

.brand {
    font-weight: 700;
    letter-spacing: 0.2px;
    text-decoration: none;
    white-space: nowrap;
}

.site-nav {
    display: none;
    gap: 14px;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.site-nav a {
    text-decoration: none;
    color: var(--muted);
    padding: 8px 10px;
    border-radius: 12px;
}

.site-nav a:hover {
    color: var(--text);
    background: var(--panel);
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--panel-2);
}

.icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    text-decoration: none;
    font-weight: 650;
    letter-spacing: 0.2px;
    cursor: pointer;
    box-shadow: 0 10px 30px -18px var(--shadow);
}

.btn:hover {
    background: var(--panel-2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border: 0;
    color: rgba(255, 255, 255, 0.95);
}

html[data-theme='light'] .btn-primary {
    color: rgba(255, 255, 255, 0.98);
}

.btn-primary:hover {
    filter: brightness(1.05);
}

.btn-ghost {
    background: transparent;
}

.hero {
    padding-top: 54px;
    padding-bottom: 14px;
    padding-block: 54px 14px;
}

.hero-grid {
    display: grid;
    gap: 32px;
    align-items: center;
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel);
    color: var(--muted);
    margin: 0 0 14px;
    width: fit-content;
}

h1 {
    margin: 0 0 14px;
    font-size: clamp(32px, 4vw, 54px);
    letter-spacing: -0.03em;
    line-height: 1.05;
}

h2 {
    margin: 0 0 20px;
    font-size: 28px;
    letter-spacing: -0.02em;
}

h3 {
    margin: 0;
    font-size: 18px;
    letter-spacing: -0.01em;
}

.lead {
    margin: 0;
    color: var(--muted);
    font-size: 18px;
}

.social-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--panel);
    text-decoration: none;
    color: var(--muted);
}

.pill:hover {
    color: var(--text);
    background: var(--panel-2);
}

.pill-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(139, 92, 246, 0.22);
    color: var(--text);
    flex: 0 0 auto;
}

.pill-icon img {
    width: 18px;
    height: 18px;
    display: block;
    filter: invert(1);
    opacity: 0.92;
}

html[data-theme='light'] .pill-icon img {
    filter: invert(0);
    opacity: 0.88;
}

.hero-photo {
    position: relative;
    width: min(520px, 100%);
    justify-self: center;
}

.hero-photo picture {
    display: block;
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 22px 60px -34px var(--shadow);
}

.hero-photo img {
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.photo-frame {
    position: absolute;
    inset: -14px;
    border-radius: 999px;
    background:
        radial-gradient(circle at 30% 20%, rgba(139, 92, 246, 0.45), transparent 55%),
        radial-gradient(circle at 70% 65%, rgba(34, 211, 238, 0.35), transparent 55%);
    filter: blur(14px);
    z-index: -1;
}

.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.card {
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
    box-shadow: 0 18px 55px -40px var(--shadow);
}

.card p {
    margin: 10px 0 0;
    color: var(--muted);
}

.tags {
    list-style: none;
    padding: 0;
    margin: 14px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tags li {
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.12);
    color: var(--muted);
    font-size: 13px;
}

html[data-theme='light'] .tags li {
    background: rgba(255, 255, 255, 0.7);
}

.timeline {
    display: grid;
    gap: 14px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 62px 1fr;
    gap: 14px;
    align-items: flex-start;
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.timeline-marker {
    width: 48px;
    height: 48px;
    padding: 7px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.92);
    display: grid;
    place-items: center;
    overflow: hidden;
}

.timeline-marker img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.timeline-content a {
    text-decoration: none;
}

.timeline-content a:hover {
    text-decoration: underline;
}

.timeline-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.meta {
    margin: 8px 0 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 14px;
}

.timeline-content ul {
    margin: 12px 0 0;
    padding-left: 18px;
    color: var(--muted);
}

.split {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr;
}

.panel {
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.panel h3 {
    margin-bottom: 12px;
}

.chip-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip-list li {
    padding: 9px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.12);
    color: var(--muted);
    font-weight: 600;
    font-size: 14px;
}

html[data-theme='light'] .chip-list li {
    background: rgba(255, 255, 255, 0.7);
}

.contact-card {
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.contact-card .lead {
    margin: 0 0 16px;
}

.contact-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.site-footer {
    padding: 34px 0 50px;
    color: var(--muted);
    border-top: 1px solid var(--border);
    margin-top: 30px;
}

.site-footer p {
    margin: 0;
}

@media (min-width: 880px) {
    .site-nav {
        display: flex;
    }

    .hero-grid {
        grid-template-columns: 1.25fr 0.75fr;
        gap: 50px;
    }

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

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

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