/* Page hero */

.page-hero {
    position: relative;
    isolation: isolate;
    overflow-x: clip;
    width: min(100%, var(--max));
    margin: 0 auto;
    padding: clamp(140px, 18vw, 200px) var(--gutter) clamp(48px, 7vw, 88px);
}

.page-hero::before {
    content: '';
    position: absolute;
    z-index: -1;
    top: -30%;
    right: -10%;
    width: min(70vw, 820px);
    aspect-ratio: 1;
    background:
        radial-gradient(closest-side, rgba(123, 92, 255, 0.28), transparent 70%),
        radial-gradient(closest-side at 30% 70%, rgba(47, 211, 255, 0.14), transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.page-title {
    max-width: 14ch;
    margin: 18px 0 0;
    font-size: clamp(48px, 8vw, 112px);
    font-weight: 500;
    line-height: 0.95;
    letter-spacing: -0.045em;
}

.page-title em {
    color: var(--acid);
}

.page-lede {
    max-width: 640px;
    margin: 28px 0 0;
    font-size: clamp(17px, 1.6vw, 20px);
    color: var(--text-2);
}

.page-meta {
    margin: 20px 0 0;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
}

.page-body {
    width: min(100%, var(--max));
    margin: 0 auto;
    padding: 0 var(--gutter) clamp(96px, 12vw, 160px);
}

.back-link {
    display: inline-flex;
    gap: 8px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    text-decoration: none;
    transition: color 0.2s, gap 0.3s var(--ease);
}

.back-link:hover {
    color: var(--acid);
    gap: 12px;
}

/* Long-form text */

.prose {
    max-width: 720px;
}

.prose h2 {
    margin: 64px 0 16px;
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.prose h3 {
    margin: 36px 0 10px;
    font-size: 19px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.prose p,
.prose li {
    color: var(--text-2);
}

.prose strong {
    color: var(--text);
    font-weight: 500;
}

.prose a {
    color: var(--text);
    text-decoration-color: var(--acid);
    text-underline-offset: 3px;
}

.prose a:hover {
    color: var(--acid);
}

.prose ul {
    padding-left: 0;
    list-style: none;
}

.prose li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
}

.prose li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.75em;
    width: 10px;
    height: 1px;
    background: var(--acid);
}

.callout {
    margin: 32px 0;
    padding: 24px 28px;
    border: 1px solid var(--line);
    border-left: 2px solid var(--acid);
    border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--ink-2);
}

.callout p {
    margin: 0;
}

/* Chapters (bio timeline) */

.chapters {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--line);
}

.chapter {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: clamp(24px, 5vw, 80px);
    padding: clamp(36px, 5vw, 56px) 0;
    border-bottom: 1px solid var(--line);
}

.chapter__label {
    display: block;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--acid);
}

.chapter__title {
    margin: 12px 0 0;
    font-size: clamp(24px, 2.6vw, 34px);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.chapter__body p {
    margin: 0 0 18px;
    color: var(--text-2);
}

.chapter__body p:last-child {
    margin-bottom: 0;
}

.chapter__body strong {
    color: var(--text);
    font-weight: 500;
}

.chapter__body em {
    color: var(--acid);
    font-size: 1.08em;
}

/* Centered panel (access gates, confirmations) */

.gate {
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: 120px var(--gutter) 64px;
}

.gate__card {
    width: min(100%, 480px);
    padding: clamp(28px, 5vw, 48px);
    text-align: left;
}

.gate__icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 28px;
    border-radius: 14px;
    background: var(--acid-dim);
    color: var(--acid);
}

.gate__title {
    margin: 14px 0 0;
    font-size: clamp(34px, 5vw, 48px);
    font-weight: 500;
    line-height: 1;
    letter-spacing: -0.04em;
}

.gate__desc {
    margin: 16px 0 32px;
    color: var(--text-2);
    font-size: 16px;
}

.gate__form {
    display: grid;
    gap: 12px;
}

.field {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: var(--ink);
    color: var(--text);
    font: inherit;
    font-family: var(--mono);
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.field::placeholder {
    color: var(--text-3);
}

.field:focus {
    outline: none;
    border-color: var(--acid);
    box-shadow: 0 0 0 4px var(--acid-dim);
}

.gate__form .btn {
    justify-content: center;
    cursor: pointer;
    font-family: inherit;
}

.gate__error {
    display: none;
    margin: 4px 0 0;
    font-size: 14px;
    color: #ff7a6b;
}

.gate__error.is-visible {
    display: block;
}

.gate__foot {
    margin-top: 28px;
}

@media (max-width: 780px) {
    .chapter {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}