:root {
    color-scheme: light dark;
    --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --color-background: #ffffff;
    --color-surface: #f5f7fb;
    --color-border: rgba(15, 24, 44, 0.12);
    --color-text: #0b0f16;
    --color-text-muted: #4d5c73;
    --color-accent: #1d7dff;
    --color-accent-strong: #0057ff;
    --shadow-soft: 0 20px 45px -32px rgba(24, 46, 84, 0.25);
    --icon-shadow: none;
    --footer-background: linear-gradient(135deg, rgba(29, 125, 255, 0.08), rgba(255, 255, 255, 0.9));
    --footer-border: rgba(15, 24, 44, 0.08);
    --noise-texture: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='32' height='32' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
    --radius-large: 24px;
    --radius-medium: 18px;
    --radius-small: 12px;
    --max-width: 1100px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-background: #000000;
        --color-surface: rgba(12, 18, 32, 0.92);
        --color-border: rgba(129, 146, 173, 0.18);
        --color-text: #ebf0f8;
        --color-text-muted: #a5b2c6;
        --color-accent: #4da0ff;
        --color-accent-strong: #1d7dff;
        --shadow-soft: 0 24px 60px -38px rgba(0, 0, 0, 0.75);
        --icon-shadow: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.35));
        --footer-background: linear-gradient(135deg, rgba(29, 125, 255, 0.18), rgba(0, 0, 0, 0.85));
        --footer-border: rgba(255, 255, 255, 0.05);
        --noise-texture: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='32' height='32' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    }
}

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

body {
    margin: 0;
    font-family: var(--font-system);
    font-size: clamp(1.6rem, 1.4rem + 0.4vw, 1.7rem);
    line-height: 1.6;
    background: var(--color-background);
    color: var(--color-text);
    letter-spacing: 0.01em;
}

html {
    font-size: 62.5%;
}

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

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

.reveal {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.reveal summary {
    display: inline;
    list-style: none;
    cursor: pointer;
    color: var(--color-accent);
}

.reveal summary::-webkit-details-marker {
    display: none;
}

.reveal[open] summary {
    color: var(--color-text-muted);
}

.reveal summary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

a:hover,
a:focus-visible {
    color: var(--color-accent-strong);
}

a:focus-visible,
.button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

::selection {
    background-color: rgba(77, 160, 255, 0.28);
}

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.layout {
    width: min(100%, var(--max-width));
    margin: 0 auto;
    padding: 0 2rem;
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
}

.site-nav__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem 2rem;
    align-items: center;
    justify-content: space-between;
    padding: 1.6rem 0;
}

.site-nav__brand {
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.site-nav__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1.6rem;
    font-size: 1.4rem;
    color: var(--color-text-muted);
}

.site-nav__links a {
    color: var(--color-text-muted);
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
    color: var(--color-accent-strong);
}

.hero {
    padding: 6rem 0 4rem;
    position: relative;
}

.hero__layout {
    display: grid;
    gap: 4rem;
    align-items: center;
}

.hero__content {
    display: flex;
    flex-direction: column;
    gap: 2.4rem;
}

.hero__kicker {
    font-size: 1.4rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: var(--color-text-muted);
}

.hero__kicker-inline {
    text-transform: none;
    letter-spacing: 0.04em;
}

.hero__title {
    margin: 0;
    font-size: clamp(4.2rem, 3.2rem + 1.8vw, 5.4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero__summary {
    margin: 0;
    color: var(--color-text-muted);
    max-width: 60ch;
}

.hero__summary--secondary {
    margin-top: -0.6rem;
    font-size: 1.5rem;
}

.hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem 2.4rem;
    padding: 0;
    margin: 0;
    list-style: none;
    color: var(--color-text-muted);
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.4rem 2.8rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-strong) 100%);
    color: #ffffff;
    font-weight: 600;
    border: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
    cursor: pointer;
}

.button--ghost {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-border);
    box-shadow: none;
}

.button::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0.05) 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: -1;
}

.button:hover::after {
    opacity: 1;
}

.button:hover {
    transform: translateY(-2px);
    color: var(--color-text);
    box-shadow: 0 14px 32px -20px rgba(29, 125, 255, 0.7);
}

.button--ghost:hover {
    box-shadow: none;
}

.section {
    padding: 5rem 0;
}

.section__header {
    max-width: 70ch;
    margin-bottom: 3rem;
    position: relative;
    isolation: isolate;
}

.section__header h2 {
    margin: 0 0 1rem;
    font-size: clamp(3.2rem, 2.6rem + 1vw, 3.8rem);
}

.section__header p {
    margin: 0;
    color: var(--color-text-muted);
}

.section__header::after {
    content: "";
    position: absolute;
    inset: -8px;
    background-image: var(--noise-texture);
    opacity: 0.08;
    z-index: -1;
    border-radius: var(--radius-small);
    pointer-events: none;
}

.card-grid {
    display: grid;
    gap: 2.4rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.stats {
    display: grid;
    gap: 2.4rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stats__item {
    padding: 2.4rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.stats__value {
    font-size: clamp(2.6rem, 2.2rem + 1vw, 3.4rem);
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.stats__label {
    color: var(--color-text-muted);
    font-size: 1.4rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.card {
    padding: 2.4rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    position: relative;
    isolation: isolate;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(77, 160, 255, 0.12), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: -1;
}

.card:hover::before {
    opacity: 1;
}

.card h3 {
    margin-top: 0;
    margin-bottom: 1.6rem;
    font-size: 2rem;
}

.card__list {
    margin: 0;
    padding-left: 1.6rem;
    color: var(--color-text-muted);
}

.card__list li + li {
    margin-top: 1.2rem;
}

.timeline {
    display: grid;
    gap: 2.4rem;
}

.timeline__item {
    padding: 2.8rem;
    border-radius: var(--radius-medium);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    position: relative;
    isolation: isolate;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.timeline__item::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(77, 160, 255, 0.12), transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: -1;
}

.timeline__item:hover::before {
    opacity: 1;
}

.timeline__header {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.6rem;
    position: relative;
}

.timeline__period {
    margin: 0;
    font-size: 1.4rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.timeline__header h3 {
    margin: 0;
    font-size: 2.2rem;
}

.timeline__list {
    margin: 0;
    padding-left: 1.6rem;
    color: var(--color-text-muted);
}

.timeline__list li + li {
    margin-top: 1.2rem;
}

.projects__list,
.section__list {
    margin: 0;
    padding-left: 1.6rem;
    color: var(--color-text-muted);
}

.projects__list li + li,
.section__list li + li {
    margin-top: 1.2rem;
}

.section--split__layout {
    display: grid;
    gap: 3rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.split-grid {
    display: grid;
    gap: 2.4rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.tag-grid {
    margin: 1.6rem 0 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag {
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: rgba(77, 160, 255, 0.08);
    color: var(--color-text-muted);
    font-size: 1.4rem;
}

.contact-card {
    display: grid;
    gap: 2rem;
}

.contact-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    align-items: center;
}

.contact-card__list {
    margin-top: 1.2rem;
}

@media (min-width: 720px) {
    .contact-card {
        grid-template-columns: 2fr 1fr;
        align-items: center;
    }
}

.section--tools {
    padding-bottom: 6rem;
}


.footer {
    margin-top: auto;
    padding: 4rem 0 5rem;
    background: var(--footer-background);
    border-top: 1px solid var(--footer-border);
}

.footer__inner {
    display: grid;
    gap: 2.4rem;
    text-align: center;
}

.footer__quote {
    margin: 0;
    font-size: 1.8rem;
    letter-spacing: 0.04em;
    color: var(--color-text);
}

.footer__links {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.6rem 2.4rem;
}

.footer__legal {
    margin: 0;
    font-size: 1.4rem;
    color: var(--color-text-muted);
}

@media (max-width: 900px) {
    .hero {
        padding-top: 5rem;
    }

    .hero__layout {
        gap: 3rem;
    }

    .hero__content {
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .layout {
        padding: 0 1.6rem;
    }

    .hero__meta {
        gap: 0.8rem 1.6rem;
    }

    .button {
        width: 100%;
    }

    .hero__cta {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}