:root {
    --about-green: #56c89b;
    --about-green-soft: #bfead3;
    --about-skate: #ff4058;
    --about-music: #b794f4;
    --about-code: #ffb24d;
    --about-line: rgba(191, 234, 211, 0.11);
    --about-panel: rgba(18, 22, 22, 0.78);
}

.about-page {
    overflow: hidden;
    background:
        linear-gradient(90deg, transparent 0 49.95%, rgba(191, 234, 211, 0.025) 50%, transparent 50.05%),
        var(--bg-primary);
}

.about-shell {
    width: min(1400px, calc(100% - 4rem));
    margin-inline: auto;
}

.about-kicker,
.about-code,
.about-field__index,
.about-field__link,
.about-portrait figcaption,
.about-hero__rail,
.about-system dt,
.about-system__signal > span,
.about-system__signal small,
.about-contact__links {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.about-kicker,
.about-code {
    color: var(--about-green);
    font-size: 0.69rem;
}

.about-hero {
    position: relative;
    overflow: hidden;
    min-height: min(880px, calc(100svh - 4rem));
    border-bottom: 1px solid var(--about-line);
    background:
        linear-gradient(90deg, rgba(86, 200, 155, 0.035) 1px, transparent 1px),
        linear-gradient(rgba(86, 200, 155, 0.025) 1px, transparent 1px),
        #0a0d0d;
    background-size: 84px 84px;
}

.about-hero::before {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 68% 42%, rgba(86, 200, 155, 0.11), transparent 32%),
        linear-gradient(90deg, #0a0d0d 0 35%, transparent 72%);
    content: "";
    pointer-events: none;
}

.about-hero__grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.8fr) 42px;
    gap: clamp(2rem, 5vw, 6rem);
    align-items: center;
    min-height: inherit;
    padding-block: clamp(7rem, 10vw, 10rem) 5rem;
}

.about-hero__copy {
    position: relative;
    z-index: 2;
}

.about-hero h1 {
    max-width: 900px;
    margin: 1.2rem 0 1.7rem;
    color: var(--text-primary);
    font-size: clamp(3rem, 6.4vw, 7.5rem);
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 0.96;
    letter-spacing: -0.055em;
}

.about-hero__lead {
    max-width: 660px;
    color: var(--text-secondary);
    font-size: clamp(1rem, 1.4vw, 1.22rem);
    line-height: 1.9;
}

.about-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2.5rem;
}

.about-button {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 0.8rem 1.3rem;
    border: 1px solid var(--about-line);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: 180ms ease;
}

.about-button--primary {
    border-color: rgba(86, 200, 155, 0.5);
    color: var(--about-green-soft);
}

.about-button:hover {
    border-color: var(--about-green);
    color: var(--about-green);
    transform: translateY(-2px);
}

.about-portrait {
    position: relative;
    z-index: 1;
    margin: 0;
}

.about-portrait__frame {
    position: relative;
    overflow: hidden;
    min-height: clamp(560px, 68vh, 760px);
    border: 1px solid rgba(191, 234, 211, 0.14);
    background: #050707;
}

.about-portrait__frame::before,
.about-portrait__frame::after {
    position: absolute;
    z-index: 2;
    inset: 0;
    content: "";
    pointer-events: none;
}

.about-portrait__frame::before {
    background:
        linear-gradient(180deg, rgba(8, 11, 11, 0.2), transparent 38%, rgba(8, 11, 11, 0.72)),
        linear-gradient(90deg, rgba(8, 11, 11, 0.28), transparent 35%);
}

.about-portrait__frame::after {
    opacity: 0.2;
    background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0, 0, 0, 0.42) 4px);
}

.about-portrait img {
    width: 100%;
    height: 100%;
    min-height: inherit;
    object-fit: cover;
    object-position: center 18%;
    filter: saturate(0.64) brightness(0.66) contrast(1.08);
}

.about-portrait figcaption {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.8rem;
    color: var(--text-tertiary);
    font-size: 0.58rem;
}

.about-portrait__signals {
    position: absolute;
    right: -18px;
    bottom: 4rem;
    display: grid;
    gap: 7px;
}

.about-portrait__signals i {
    display: block;
    width: 44px;
    height: 3px;
    background: var(--about-green);
}

.about-portrait__signals i:nth-child(2) { width: 29px; background: var(--about-skate); }
.about-portrait__signals i:nth-child(3) { width: 36px; background: var(--about-code); }

.about-hero__rail {
    display: flex;
    align-items: center;
    gap: 2.2rem;
    color: rgba(191, 234, 211, 0.38);
    font-size: 0.55rem;
    writing-mode: vertical-rl;
}

.about-section {
    padding-block: clamp(5rem, 9vw, 9rem);
    border-bottom: 1px solid var(--about-line);
}

.about-section__header h2,
.about-system h2,
.about-contact h2 {
    max-width: 1050px;
    margin: 0.8rem 0 0;
    color: var(--text-primary);
    font-size: clamp(2rem, 4.5vw, 5rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    font-family: var(--font-serif);
    font-weight: 400;
}

.about-identity {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.7fr);
    gap: clamp(3rem, 8vw, 9rem);
    align-items: end;
}

.about-identity__body {
    border-left: 1px solid var(--about-green);
    padding-left: 1.5rem;
}

.about-identity__body p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.9;
}

.about-identity__body p + p { margin-top: 1.4rem; }

.about-fields__grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr 1.05fr 0.95fr;
    gap: 1px;
    margin-top: clamp(3rem, 6vw, 6rem);
    background: var(--about-line);
}

.about-field {
    --field-color: var(--about-green);
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: 450px;
    padding: clamp(1.5rem, 3vw, 3rem);
    background: #0d1111;
    color: inherit;
    text-decoration: none;
    transition: background 220ms ease, transform 220ms ease;
}

.about-field--skate { --field-color: var(--about-skate); }
.about-field--music {
    --field-color: var(--about-music);
    min-height: 420px;
    margin-top: 2rem;
}
.about-field--code { --field-color: var(--about-code); }
.about-field--future {
    --field-color: var(--about-green);
    min-height: 420px;
    margin-top: 2rem;
    background:
        linear-gradient(135deg, rgba(86, 200, 155, 0.035), transparent 58%),
        #0b0f0f;
    box-shadow: inset 0 0 0 1px rgba(86, 200, 155, 0.08);
}

.about-field--future .about-field__index,
.about-field--future .about-field__link {
    opacity: 0.58;
}

.about-field--future .about-field__glyph {
    color: rgba(86, 200, 155, 0.045);
}

.about-field::after {
    position: absolute;
    inset: auto 0 0;
    height: 2px;
    background: var(--field-color);
    content: "";
    transform: scaleX(0.16);
    transform-origin: left;
    transition: transform 240ms ease;
}

.about-field:hover {
    z-index: 2;
    background: #111616;
    transform: translateY(-6px);
}

.about-field:hover::after { transform: scaleX(1); }

.about-field__index,
.about-field__link {
    position: relative;
    z-index: 1;
    color: var(--field-color);
    font-size: 0.65rem;
}

.about-field__glyph {
    position: absolute;
    top: -0.13em;
    right: -0.03em;
    color: color-mix(in srgb, var(--field-color) 9%, transparent);
    font-family: var(--font-mono);
    font-size: clamp(12rem, 22vw, 23rem);
    font-weight: 800;
    line-height: 1;
}

.about-field h3 {
    position: relative;
    z-index: 1;
    max-width: 15ch;
    margin: 6rem 0 1.2rem;
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-size: clamp(1.45rem, 2.4vw, 2.55rem);
    font-weight: 400;
    line-height: 1.2;
}

.about-field p {
    position: relative;
    z-index: 1;
    max-width: 34rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

.about-field__link {
    position: absolute;
    bottom: 2.5rem;
    left: clamp(1.5rem, 3vw, 3rem);
}

.about-method__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.8fr);
    gap: clamp(3rem, 8vw, 9rem);
    align-items: start;
    margin-top: 4rem;
}

.about-method blockquote {
    margin: 0;
    padding: 2rem 0 2rem 2rem;
    border-left: 2px solid var(--about-green);
    color: var(--about-green-soft);
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 2.7vw, 2.8rem);
    font-weight: 400;
    line-height: 1.5;
}

.about-flow {
    margin: 0;
    padding: 0;
    list-style: none;
}

.about-flow li {
    display: grid;
    grid-template-columns: 2.3rem 7rem 1fr;
    gap: 1rem;
    align-items: baseline;
    padding: 1.1rem 0;
    border-top: 1px solid var(--about-line);
    font-family: var(--font-mono);
}

.about-flow span { color: var(--about-green); font-size: 0.65rem; }
.about-flow strong { color: var(--text-primary); font-size: 0.75rem; letter-spacing: 0.12em; }
.about-flow small { color: var(--text-tertiary); line-height: 1.7; }

.about-system {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.85fr);
    gap: clamp(3rem, 7vw, 8rem);
}

.about-system h2 { font-size: clamp(2rem, 4vw, 4rem); }

.about-system dl {
    margin: 3rem 0 0;
    border-top: 1px solid var(--about-line);
}

.about-system dl div {
    display: grid;
    grid-template-columns: 8rem 1fr;
    gap: 1rem;
    padding: 0.95rem 0;
    border-bottom: 1px solid var(--about-line);
}

.about-system dt { color: var(--text-tertiary); font-size: 0.62rem; }
.about-system dd { margin: 0; color: var(--text-secondary); }

.about-system__signal {
    align-self: end;
    padding: clamp(1.6rem, 3vw, 3rem);
    border: 1px solid rgba(86, 200, 155, 0.2);
    background:
        linear-gradient(135deg, rgba(86, 200, 155, 0.07), transparent 62%),
        var(--about-panel);
    backdrop-filter: blur(16px);
}

.about-system__signal > span { color: var(--about-green); font-size: 0.66rem; }
.about-system__signal p { margin: 2.5rem 0; color: var(--text-primary); font-size: 1.15rem; line-height: 1.9; }
.about-system__signal small { color: var(--text-tertiary); font-size: 0.58rem; }
.about-system__signal small i {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 0.5rem;
    border-radius: 50%;
    background: var(--about-green);
    box-shadow: 0 0 10px var(--about-green);
    animation: about-signal 1.8s ease-in-out infinite;
}

.about-contact {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
    gap: clamp(3rem, 8vw, 9rem);
    align-items: start;
}

.about-contact h2 { font-size: clamp(2rem, 4vw, 4rem); }

.about-contact__links {
    display: grid;
    border-top: 1px solid var(--about-line);
}

.about-contact__links a {
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 1rem;
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--about-line);
    color: var(--text-secondary);
    font-size: 0.72rem;
    text-decoration: none;
}

.about-contact__links a span { color: var(--about-green); }
.about-contact__links a:hover { color: var(--about-green-soft); }

.about-license {
    grid-column: 2;
    margin: 0;
    color: var(--text-tertiary);
    font-size: 0.78rem;
    line-height: 1.8;
}

.about-license a { color: var(--about-green); }

@keyframes about-signal {
    50% { opacity: 0.35; }
}

@media (max-width: 980px) {
    .about-hero__grid { grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr); }
    .about-hero__rail { display: none; }
    .about-identity,
    .about-method__grid,
    .about-system,
    .about-contact { grid-template-columns: 1fr 1fr; gap: 3rem; }
    .about-fields__grid { grid-template-columns: 1fr 1fr; }
    .about-license { grid-column: 2; }
}

@media (max-width: 720px) {
    .about-shell { width: min(100% - 2rem, 1400px); }
    .about-hero { min-height: auto; }
    .about-hero__grid,
    .about-identity,
    .about-method__grid,
    .about-system,
    .about-contact { grid-template-columns: 1fr; }
    .about-hero__grid { padding-top: 7rem; }
    .about-hero h1 { font-size: clamp(2.7rem, 13vw, 4.5rem); }
    .about-portrait { width: min(90%, 440px); margin-inline: auto; }
    .about-portrait__frame { min-height: 520px; }
    .about-fields__grid { grid-template-columns: 1fr; }
    .about-field--music,
    .about-field--future { margin-top: 0; }
    .about-method__grid { margin-top: 2.5rem; }
    .about-flow li { grid-template-columns: 2rem 6rem 1fr; }
    .about-license { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .about-button,
    .about-field,
    .about-field::after { transition: none; }
    .about-system__signal small i { animation: none; }
}