.agent4-page {
    background: #030507;
}

html {
    scrollbar-width: none;
}

html::-webkit-scrollbar {
    display: none;
}

.agent4-page::before {
    display: none;
}

.agent4-page main {
    padding-top: 72px;
    overflow: hidden;
}

.agent4-page .v4-shell {
    width: min(1240px, calc(100% - 96px));
}

.agent4-canvas-section {
    position: relative;
    border-top: 1px solid rgba(221, 247, 255, 0.07);
    scroll-margin-top: 72px;
}

.agent4-canvas-section::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 50% 0%, rgba(32, 134, 240, 0.04), transparent 34%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.012), transparent 24%);
}

.agent4-canvas-section > .v4-shell {
    position: relative;
    z-index: 1;
}

.agent4-page [id] {
    scroll-margin-top: 108px;
}

.agent4-page h1,
.agent4-page h2 {
    color: var(--text);
}

.agent4-page h1 span,
.agent4-page h2 span {
    color: transparent;
    background: linear-gradient(105deg, #dff3ff 0%, #82baf2 52%, #2d7ce1 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.agent4-page [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition:
        opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.agent4-page [data-reveal-delay="1"] {
    transition-delay: 0.08s;
}

.agent4-page [data-reveal-delay="2"] {
    transition-delay: 0.12s;
}

.agent4-page [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

.agent4-page .bx {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #79b8f3;
    font-size: 1.25em;
    line-height: 1;
}

/* Hero */
.agent4-hero {
    position: relative;
    min-height: 670px;
    overflow: hidden;
    background: #030507;
}

.agent4-hero__backdrop {
    position: absolute;
    inset: 0 auto 0 0;
    width: 110%;
    height: 100%;
    object-fit: cover;
    object-position: center 63%;
    opacity: 0.94;
}

.agent4-page .agent4-hero__inner {
    display: flex;
    width: min(1286px, calc(100% - 106px));
    min-height: 670px;
    align-items: center;
}

.agent4-hero__copy {
    position: relative;
    width: 1200px;
    max-width: 95%;
    padding-bottom: 14px;
}

.agent4-hero h1 {
    padding-right: 0.06em;
    font-size: clamp(58px, 4.7vw, 70px);
    line-height: 1.02;
}

.agent4-hero__copy > p {
    max-width: 650px;
    margin-top: 28px;
    color: rgba(221, 231, 244, 0.78);
    font-size: 19px;
    line-height: 1.65;
}

.agent4-hero__actions {
    margin-top: 32px;
}

.agent4-page .v4-actions {
    gap: 12px;
}

.agent4-page .v4-button,
.agent4-code__docs {
    min-height: 50px;
    padding: 0 24px;
    border-radius: 999px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
}

.agent4-page .v4-button--primary {
    overflow: hidden;
    border: 0;
    background: linear-gradient(90deg, #d9f5ff 0%, #2f7fba 100%);
    background-clip: padding-box;
    box-shadow: 0 16px 38px rgba(0, 179, 255, 0.12);
    color: #170b1d;
    -webkit-appearance: none;
    appearance: none;
}

.agent4-page .v4-button--secondary,
.agent4-code__docs {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    box-shadow: none;
}

.agent4-page .v4-button--primary:hover,
.agent4-page .v4-button--primary:focus-visible {
    box-shadow: 0 18px 42px rgba(0, 179, 255, 0.17);
}

.agent4-page .v4-button--primary:focus-visible {
    outline: 2px solid #69c7ff;
    outline-offset: 3px;
}

.agent4-page .v4-button--secondary:hover,
.agent4-page .v4-button--secondary:focus-visible,
.agent4-code__docs:hover,
.agent4-code__docs:focus-visible {
    border-color: rgba(32, 134, 240, 0.18);
    background: rgba(32, 134, 240, 0.03);
    color: var(--text);
}

.agent4-page .v4-button .bx {
    margin-left: 10px;
    color: currentColor;
    font-size: 21px;
}

/* The multiplication problem */
.agent4-bottleneck {
    min-height: 680px;
    border-top-color: transparent;
    background: linear-gradient(180deg, #030507 0%, #05070a 42%, #0a0b0e 100%);
}

.agent4-bottleneck__layout {
    display: grid;
    min-height: 680px;
    padding: 110px 0;
    grid-template-columns: minmax(0, 42fr) minmax(0, 58fr);
    align-items: center;
    gap: 78px;
}

.agent4-bottleneck__copy h2 {
    max-width: 540px;
    font-size: clamp(42px, 3.6vw, 52px);
    line-height: 1.06;
}

.agent4-bottleneck__copy p {
    max-width: 470px;
    margin-top: 28px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.agent4-duplication {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) 36px minmax(0, 1fr);
    align-items: end;
    gap: 16px;
}

.agent4-private-stack {
    min-width: 0;
    text-align: center;
}

.agent4-product-node {
    display: flex;
    min-height: 76px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: #d8e5f4;
    font-size: 13px;
    font-weight: 400;
    margin: 0;
}

.agent4-product-node .bx {
    font-size: 34px;
}

.agent4-stack-line {
    width: 1px;
    height: 28px;
    margin: 0 auto;
    background: #4d7daa;
}

.agent4-stack-box {
    overflow: hidden;
    border: 1px solid rgba(221, 247, 255, 0.1);
    border-radius: 14px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.01)),
        rgba(12, 13, 16, 0.92);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04),
        0 10px 24px rgba(0, 0, 0, 0.22);
    list-style: none;
    margin: 0;
    padding: 0;
}

.agent4-stack-box li {
    display: block;
    overflow: hidden;
    min-height: 31px;
    padding: 7px 6px;
    border-top: 1px solid rgba(124, 157, 190, 0.25);
    color: #c8d5e5;
    font-size: 11.5px;
    line-height: 16px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.agent4-stack-box li:first-child {
    border-top: 0;
}

.agent4-stack-box li.is-product {
    min-height: 38px;
    padding-top: 10px;
    padding-bottom: 10px;
    color: #8dc8ff;
    background: rgba(35, 94, 154, 0.2);
    font-family: var(--font-body);
    font-size: 11.5px;
    font-weight: 650;
}

.agent4-duplication__ellipsis {
    display: flex;
    height: 30px;
    margin-bottom: 137px;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.agent4-duplication__ellipsis span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(132, 183, 230, 0.75);
    box-shadow: 0 0 7px rgba(80, 155, 226, 0.45);
}

/* Application/cloud responsibility boundary */
.agent4-boundary {
    min-height: 720px;
    background: radial-gradient(circle at 82% 54%, rgba(45, 119, 198, 0.07), transparent 36%);
}

.agent4-boundary__layout {
    display: grid;
    min-height: 720px;
    padding: 120px 0;
    grid-template-columns: minmax(0, 34fr) minmax(0, 66fr);
    align-items: center;
    gap: 70px;
}

.agent4-boundary__copy h2 {
    max-width: 490px;
    font-size: clamp(46px, 4.1vw, 58px);
    line-height: 1.06;
}

.agent4-boundary__note {
    max-width: 480px;
    margin-top: 27px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.agent4-boundary__diagram {
    display: grid;
    min-width: 0;
    grid-template-columns: minmax(0, 0.92fr) 58px minmax(0, 1.08fr);
    align-items: center;
    gap: 18px;
}

.agent4-boundary__label {
    display: grid;
    margin-bottom: 12px;
    color: #f0f5fd;
    font-size: 16px;
    gap: 4px;
}

.agent4-boundary__label small {
    color: #93a5b9;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.agent4-boundary__side--traditional {
    padding: 18px;
    border: 1px solid rgba(221, 247, 255, 0.09);
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.01)),
        rgba(12, 13, 16, 0.92);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.04),
        0 10px 24px rgba(0, 0, 0, 0.22);
}

.agent4-boundary__side--traditional .agent4-boundary__label {
    padding: 0 4px 6px;
}

.agent4-app-stack {
    overflow: hidden;
    border: 1px solid rgba(221, 247, 255, 0.08);
    border-radius: 14px;
    background: rgba(5, 9, 14, 0.58);
    list-style: none;
    margin: 0;
    padding: 0;
}

.agent4-app-stack > * {
    display: flex;
    min-height: 38px;
    padding: 7px 17px;
    align-items: center;
    border-top: 1px solid rgba(118, 151, 183, 0.25);
    color: #a8b5c7;
    font-family: var(--font-mono);
    font-size: 12px;
}

.agent4-app-stack > .is-product {
    min-height: 48px;
    border-top: 0;
    color: #bcdcff;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    background: rgba(39, 104, 169, 0.13);
}

.agent4-app-stack .is-product .bx,
.agent4-product-box .bx {
    margin-right: 9px;
}

.agent4-boundary__arrow {
    color: #bdcad9 !important;
    font-size: 42px !important;
}

.agent4-product-box {
    display: flex;
    min-height: 72px;
    padding: 0 20px;
    align-items: center;
    border: 1px solid rgba(221, 247, 255, 0.1);
    border-radius: 14px;
    color: #bcdcff;
    background: rgba(9, 20, 34, 0.58);
    font-size: 17px;
}

.agent4-product-box strong {
    display: inline-flex;
    align-items: center;
}

.agent4-product-box .bx {
    line-height: 1;
}

.agent4-cloud-box {
    position: relative;
    margin-top: 48px;
    padding: 22px 24px 20px;
    border: 1px solid rgba(32, 134, 240, 0.18);
    border-radius: 18px;
    background: rgba(7, 17, 29, 0.92);
}

.agent4-cloud-box::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    width: 1px;
    height: 49px;
    background: rgba(89, 165, 235, 0.5);
}

.agent4-cloud-box__brand {
    display: flex;
    padding-bottom: 17px;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(128, 162, 194, 0.24);
    gap: 10px;
}

.agent4-cloud-box__brand .logo-mark,
.agent4-compounding__cloud .logo-mark {
    width: 24px;
    height: 27px;
}

.agent4-cloud-box__brand strong {
    color: #d8edff;
    font-family: var(--font-body);
    font-size: 21px;
    font-weight: 400;
}

.agent4-cloud-box__brand em {
    color: #79b8f3;
    font-style: normal;
}

.agent4-cloud-box__items {
    display: grid;
    padding: 20px 0 0;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px 8px;
    list-style: none;
    margin: 0;
}

.agent4-cloud-box__items li {
    display: flex;
    min-width: 0;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #c4cfde;
    font-size: 11px;
    line-height: 1.35;
    text-align: center;
}

.agent4-cloud-box__items .bx {
    font-size: 25px;
}

/* Product context */
.agent4-context {
    min-height: 710px;
}

.agent4-context__layout {
    display: grid;
    min-height: 710px;
    padding: 128px 0;
    grid-template-columns: minmax(0, 41fr) minmax(0, 59fr);
    align-items: center;
    gap: 92px;
}

.agent4-context__copy h2 {
    font-size: clamp(48px, 4.5vw, 62px);
    line-height: 1.05;
}

.agent4-context__copy p {
    max-width: 510px;
    margin-top: 28px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.72;
}

.agent4-context__rail {
    --agent4-context-border: rgba(221, 247, 255, 0.09);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: hidden;
    border: 1px solid var(--agent4-context-border);
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008)),
        rgba(12, 13, 16, 0.78);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.035),
        0 10px 24px rgba(0, 0, 0, 0.2);
}

.agent4-context__rail article {
    position: relative;
    min-height: 220px;
    padding: 34px 30px;
}

.agent4-context__rail article:nth-child(odd) {
    border-right: 1px solid var(--agent4-context-border);
}

.agent4-context__rail article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--agent4-context-border);
}

.agent4-context__node,
.agent4-context__arrow {
    display: none !important;
}

.agent4-context__rail article > .bx:not(.agent4-context__arrow) {
    width: 43px;
    height: 43px;
    border: 1px solid rgba(106, 169, 230, 0.34);
    border-radius: 8px;
    background: rgba(10, 20, 33, 0.7);
    font-size: 26px;
}

.agent4-context__rail h3 {
    margin-top: 21px;
    color: #e9f2fb;
    font-family: var(--font-body);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.agent4-context__rail p {
    margin-top: 12px;
    color: #8e9eb1;
    font-size: 15px;
    line-height: 1.58;
}

/* Explicit cloud model */
.agent4-layers {
    min-height: 690px;
    background: radial-gradient(circle at 50% 55%, rgba(40, 101, 167, 0.08), transparent 44%);
}

.agent4-layers__layout {
    min-height: 690px;
    padding: 116px 0;
}

.agent4-layers__copy {
    max-width: 820px;
    margin: 0 auto 58px;
    text-align: center;
}

.agent4-layers__copy h2 {
    font-size: clamp(48px, 4.4vw, 60px);
    line-height: 1.06;
}

.agent4-layers__copy > p {
    max-width: 700px;
    margin: 24px auto 0;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.agent4-layer-list {
    position: relative;
    display: grid;
    max-width: 980px;
    margin: 0 auto;
    gap: 10px;
}

.agent4-layer-list article {
    position: relative;
    display: grid;
    min-height: 72px;
    padding: 0 30px 0 43px;
    grid-template-columns: 46px 180px 1fr;
    align-items: center;
    border: 1px solid rgba(221, 247, 255, 0.09);
    border-radius: 16px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008)),
        rgba(12, 13, 16, 0.82);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.agent4-layer-list article::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -12px;
    width: 20px;
    height: 20px;
    border: 2px solid #66a7e7;
    border-radius: 50%;
    background: #08111c;
    box-shadow: 0 0 14px rgba(83, 162, 239, 0.48);
    transform: translateY(-50%);
}

.agent4-layer-list article > .bx {
    color: #9aacc2;
    font-size: 28px;
}

.agent4-layer-list h3 {
    color: #f2bd63;
    font-family: var(--font-body);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0;
}

.agent4-layer-list p {
    min-height: 38px;
    padding-left: 34px;
    border-left: 1px solid rgba(131, 156, 181, 0.35);
    color: #b5c2d1;
    font-size: 16px;
    line-height: 38px;
    white-space: nowrap;
}

.agent4-layers__actions {
    margin-top: 36px;
    justify-content: center;
}

.agent4-layers__actions .bx {
    font-size: 20px;
}

/* Real SDK shape */
.agent4-code {
    min-height: 900px;
}

.agent4-code__layout {
    display: grid;
    min-height: 900px;
    padding: 130px 0;
    grid-template-columns: minmax(0, 31fr) minmax(0, 69fr);
    align-items: start;
    gap: 34px 68px;
}

.agent4-code__copy {
    grid-row: 1 / span 2;
    padding-top: 42px;
}

.agent4-code__copy h2 {
    font-size: clamp(48px, 4.2vw, 60px);
    line-height: 1.06;
}

.agent4-code__copy p {
    max-width: 390px;
    margin-top: 28px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.agent4-code__docs {
    display: inline-flex;
    margin-top: 26px;
    align-items: center;
    gap: 9px;
    transition: border-color 180ms ease, background 180ms ease, color 180ms ease, transform 180ms ease;
}

.agent4-code__docs:hover {
    transform: translateY(-1px);
}

.agent4-code__docs .bx {
    font-size: 20px;
}

.agent4-code__explore {
    display: inline-flex;
    width: fit-content;
    min-height: 50px;
    padding: 0 20px;
    grid-column: 2;
    align-items: center;
    gap: 11px;
    border: 1px solid rgba(118, 184, 255, 0.25);
    border-radius: 9px;
    background: rgba(11, 24, 38, 0.72);
    color: #c1d8eb;
    font-size: 14px;
    font-weight: 700;
    transition: border-color 180ms ease, background 180ms ease, color 180ms ease, transform 180ms ease;
}

.agent4-code__explore:hover,
.agent4-code__explore:focus-visible {
    border-color: rgba(108, 179, 241, 0.52);
    background: rgba(17, 42, 66, 0.78);
    color: #e6f4ff;
    transform: translateY(-1px);
}

.agent4-code__explore .bx {
    color: #71b9f7;
    font-size: 20px;
}

.agent4-code__sample,
.agent4-code__test {
    overflow: hidden;
    margin: 0;
    border: 1px solid rgba(221, 247, 255, 0.09);
    border-radius: 18px;
    background: rgba(7, 11, 17, 0.78);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.035),
        0 10px 24px rgba(0, 0, 0, 0.2);
}

.agent4-code__examples {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 1fr);
    align-items: start;
    gap: 15px;
}

.agent4-code__bar {
    display: flex;
    min-height: 46px;
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(127, 153, 180, 0.22);
    color: #d6e2ef;
    font-size: 14px;
}

.agent4-code__bar strong {
    font-weight: 400;
}

.agent4-code__bar small {
    padding: 4px 10px;
    border: 1px solid rgba(125, 155, 185, 0.3);
    border-radius: 5px;
    color: #91a8c2;
    font-size: 12px;
}

.agent4-code pre {
    margin: 0;
    padding: 21px 22px 24px;
    overflow: auto;
    color: #bcbec3;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.62;
    tab-size: 4;
    white-space: pre;
}

.agent4-code__sample code,
.agent4-code__test code {
    font: inherit;
}

.agent4-code__sample,
.agent4-code__test {
    background: #1e1f22;
}

.agent4-code .tok-annotation {
    color: #b2ae6a;
    font-weight: 650;
}

.agent4-code .tok-keyword {
    color: #c59172;
    font-weight: 700;
}

.agent4-code .tok-type {
    color: #bcbec3;
    font-weight: 650;
}

.agent4-code .tok-method {
    color: #6aa6ef;
    font-weight: 650;
}

.agent4-code .tok-call {
    color: #bcbec3;
    font-weight: 650;
}

.agent4-code .tok-string {
    color: #79a978;
}

.agent4-code .tok-field {
    color: #bd80b8;
}

.agent4-code .tok-literal {
    color: #c59172;
    font-weight: 650;
}

.agent4-code__test pre {
    padding-right: 12px;
    padding-left: 12px;
}

/* Concise ownership comparison */
.agent4-comparison {
    min-height: 980px;
    background: radial-gradient(circle at 80% 42%, rgba(46, 112, 184, 0.06), transparent 35%);
}

.agent4-comparison .v4-shell {
    padding-top: 125px;
    padding-bottom: 120px;
}

.agent4-comparison__heading {
    max-width: 880px;
    margin: 0 auto 62px;
    text-align: center;
}

.agent4-comparison__heading h2 {
    font-size: clamp(46px, 4.2vw, 58px);
    line-height: 1.06;
}

.agent4-comparison__heading p {
    max-width: 720px;
    margin: 24px auto 0;
    color: var(--text-secondary);
    font-size: 19px;
    line-height: 1.65;
}

.agent4-comparison__table {
    overflow: hidden;
    border: 1px solid rgba(221, 247, 255, 0.09);
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008)),
        rgba(12, 13, 16, 0.82);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.035),
        0 10px 24px rgba(0, 0, 0, 0.2);
}

.agent4-comparison__row {
    display: grid;
    grid-template-columns: minmax(205px, 0.72fr) minmax(0, 1.36fr) minmax(0, 1fr);
}

.agent4-comparison__row > div {
    display: flex;
    min-width: 0;
    min-height: 78px;
    padding: 18px 24px;
    align-items: center;
    color: #b6c2d1;
    font-size: 15px;
    line-height: 1.5;
    gap: 11px;
}

.agent4-comparison__row + .agent4-comparison__row {
    border-top: 1px solid rgba(124, 151, 179, 0.24);
}

.agent4-comparison__row > div + div {
    border-left: 1px solid rgba(124, 151, 179, 0.28);
}

.agent4-comparison__row > div:first-child {
    color: #f2f5f9;
    font-weight: 600;
}

.agent4-comparison__row > div:first-child .bx {
    font-size: 24px;
}

.agent4-comparison__head > div {
    min-height: 112px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    color: #eef4fb;
}

.agent4-comparison__head strong {
    font-family: var(--font-display);
    font-size: 22px;
    letter-spacing: -0.025em;
}

.agent4-comparison__head small {
    color: #91a2b7;
    font-size: 13px;
}

.agent4-comparison__row .is-fluxzero {
    background: radial-gradient(circle at 100% 0%, rgba(80, 151, 236, 0.13), transparent 55%), rgba(17, 56, 96, 0.3);
    color: #96c9f7;
}

.agent4-comparison__head .is-fluxzero {
    box-shadow: inset 0 2px #5ea6fa;
    color: #82bfff;
}

.agent4-comparison__mark {
    display: inline-grid;
    width: 23px;
    height: 23px;
    flex: 0 0 23px;
    place-items: center;
    border: 1px solid rgba(126, 146, 174, 0.25);
    border-radius: 50%;
    color: #65738a;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
}

.agent4-comparison__mark.is-included {
    border-color: rgba(111, 181, 255, 0.64);
    background: rgba(61, 126, 216, 0.22);
    color: #b8dcff;
}

.agent4-comparison__mobile {
    display: none;
}

/* Shared improvements */
.agent4-compounding {
    min-height: 640px;
}

.agent4-compounding__layout {
    display: grid;
    min-height: 640px;
    padding: 122px 0;
    grid-template-columns: minmax(0, 36fr) minmax(0, 64fr);
    align-items: center;
    gap: 90px;
}

.agent4-compounding__copy h2 {
    font-size: clamp(48px, 4.2vw, 58px);
    line-height: 1.06;
}

.agent4-compounding__copy p {
    max-width: 440px;
    margin-top: 26px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.agent4-compounding__visual {
    display: grid;
    min-height: 300px;
    grid-template-columns: minmax(150px, 190px) minmax(62px, 82px) minmax(160px, 190px) minmax(62px, 82px) 170px;
    align-items: center;
    gap: 12px;
}

.agent4-compounding__cloud {
    position: relative;
    display: flex;
    min-height: 142px;
    padding: 24px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(98, 165, 229, 0.62);
    border-radius: 22px;
    background: radial-gradient(circle at 50% 10%, rgba(75, 145, 213, 0.18), transparent 64%), rgba(8, 17, 28, 0.82);
    box-shadow: 0 0 24px rgba(53, 126, 197, 0.12), inset 0 0 22px rgba(65, 135, 204, 0.06);
}

.agent4-compounding__cloud > div {
    display: grid;
    grid-template-columns: 24px auto;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.agent4-compounding__cloud .logo-mark {
    width: 24px;
    height: 27px;
}

.agent4-compounding__cloud strong {
    color: #ddecfb;
    font-family: var(--font-body);
    font-size: 24px;
    font-weight: 400;
}

.agent4-compounding__cloud small {
    grid-column: 1 / -1;
    margin-top: 4px;
    color: #8ea3ba;
    font-size: 12px;
    text-align: center;
}

.agent4-compounding__connector {
    display: grid;
    min-width: 0;
    align-items: center;
    gap: 10px;
}

.agent4-compounding__connector small {
    color: #708399;
    font-size: 11px;
    line-height: 1.35;
    text-align: center;
}

.agent4-compounding__connector span {
    position: relative;
    display: flex;
    height: 24px;
    align-items: center;
}

.agent4-compounding__connector span::before {
    content: '';
    width: 100%;
    border-top: 1px solid rgba(100, 168, 231, 0.65);
}

.agent4-compounding__connector .bx {
    position: absolute;
    right: -4px;
    padding-left: 4px;
    color: #7fbae9;
    background: #030507;
    font-size: 22px;
}

.agent4-compounding__improvements {
    display: grid;
    gap: 11px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.agent4-compounding__improvements li {
    display: flex;
    min-height: 44px;
    padding: 0 12px;
    align-items: center;
    border: 1px solid rgba(108, 154, 198, 0.28);
    border-radius: 8px;
    background: rgba(9, 17, 27, 0.82);
    color: #d9e2ec;
    font-size: 13px;
    gap: 9px;
}

.agent4-compounding__improvements .bx {
    width: 24px;
    height: 24px;
    color: #dceafa;
    font-size: 20px;
}

.agent4-compounding__products {
    min-width: 0;
}

.agent4-compounding__products small {
    display: block;
    margin-bottom: 11px;
    color: #bec8d4;
    font-size: 13px;
}

.agent4-compounding__products > div {
    display: grid;
    width: 170px;
    grid-template-columns: repeat(4, 36px);
    gap: 9px 8px;
}

.agent4-compounding__products .bx {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(117, 147, 177, 0.38);
    border-radius: 7px;
    background: rgba(9, 15, 24, 0.86);
    color: #d7e4f2;
    font-size: 21px;
}

/* Technical fit */
.agent4-decision {
    min-height: 580px;
    background: rgba(7, 12, 19, 0.34);
}

.agent4-decision > .v4-shell {
    padding-top: 105px;
    padding-bottom: 105px;
}

.agent4-decision__heading {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.agent4-decision__heading h2 {
    font-size: clamp(46px, 4.2vw, 58px);
    line-height: 1.06;
}

.agent4-decision__heading p {
    max-width: 720px;
    margin: 24px auto 0;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.65;
}

.agent4-decision__options {
    display: grid;
    max-width: 1120px;
    margin: 60px auto 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.agent4-decision__options article {
    display: grid;
    min-height: 145px;
    padding: 0 54px;
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: start;
    gap: 18px;
}

.agent4-decision__options article + article {
    border-left: 1px solid rgba(124, 151, 179, 0.28);
}

.agent4-decision__options article > .bx {
    margin-top: 1px;
    color: #83bff4;
    font-size: 29px;
}

.agent4-decision__options article:last-child > .bx {
    color: #73869b;
}

.agent4-decision__options h3 {
    color: #bcdfff;
    font-family: var(--font-body);
    font-size: 22px;
    font-weight: 650;
}

.agent4-decision__options article:last-child h3 {
    color: #d0d8e2;
}

.agent4-decision__options p {
    margin-top: 13px;
    color: #9aa9bb;
    font-size: 16px;
    line-height: 1.58;
}

/* Final CTA */
.agent4-final {
    min-height: 470px;
    background: radial-gradient(
        ellipse 70% 88% at 50% 44%,
        rgba(44, 105, 180, 0.16) 0%,
        rgba(44, 105, 180, 0.08) 38%,
        rgba(44, 105, 180, 0.025) 62%,
        transparent 82%
    );
}

.agent4-final__inner {
    display: flex;
    min-height: 470px;
    padding: 95px 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.agent4-final h2 {
    max-width: 940px;
    font-size: clamp(48px, 4.5vw, 62px);
    line-height: 1.06;
    text-align: center;
}

.agent4-final .v4-actions {
    margin-top: 36px;
}

.agent4-page footer {
    padding-top: 30px;
}

@media (max-width: 1080px) {
    .agent4-page .v4-shell,
    .agent4-page .agent4-hero__inner {
        width: min(920px, calc(100% - 48px));
    }

    .agent4-hero__copy {
        max-width: 82%;
    }

    .agent4-bottleneck__layout,
    .agent4-boundary__layout,
    .agent4-context__layout,
    .agent4-compounding__layout {
        padding: 104px 0;
        grid-template-columns: 1fr;
        gap: 66px;
    }

    .agent4-boundary__copy h2,
    .agent4-boundary__note,
    .agent4-context__copy p,
    .agent4-compounding__copy p {
        max-width: 720px;
    }

    .agent4-code__layout {
        padding: 108px 0;
        grid-template-columns: 1fr;
    }

    .agent4-code__copy {
        grid-row: auto;
        padding-top: 0;
    }

    .agent4-code__explore {
        grid-column: 1;
    }

    .agent4-code__copy p {
        max-width: 700px;
    }

    .agent4-comparison__row > div {
        padding: 16px 17px;
        font-size: 14px;
    }

    .agent4-comparison__head strong {
        font-size: 19px;
    }

    .agent4-compounding__visual {
        max-width: 820px;
    }
}

@media (max-width: 760px) {
    .agent4-page main {
        padding-top: 64px;
    }

    .agent4-page .v4-shell,
    .agent4-page .agent4-hero__inner {
        width: calc(100% - 32px);
    }

    .agent4-page [id] {
        scroll-margin-top: 92px;
    }

    .agent4-hero,
    .agent4-page .agent4-hero__inner {
        min-height: 830px;
    }

    .agent4-hero__backdrop {
        object-position: 63% bottom;
    }

    .agent4-page .agent4-hero__inner {
        padding: 78px 0 105px;
        align-items: flex-start;
    }

    .agent4-hero__copy {
        width: 100%;
        max-width: none;
    }

    .agent4-hero h1 {
        font-size: clamp(42px, 11.5vw, 50px);
    }

    .agent4-hero__copy > p {
        margin-top: 27px;
        font-size: 17px;
        line-height: 1.62;
    }

    .agent4-hero__actions {
        width: 100%;
        margin-top: 31px;
    }

    .agent4-page .agent4-hero__actions .v4-button,
    .agent4-page .agent4-final .v4-button {
        width: 100%;
        justify-content: center;
        border-radius: 999px;
    }

    .agent4-code__docs {
        width: 100%;
        justify-content: center;
    }

    .agent4-bottleneck__layout,
    .agent4-boundary__layout,
    .agent4-context__layout,
    .agent4-layers__layout,
    .agent4-code__layout,
    .agent4-compounding__layout {
        min-height: 0;
        padding: 96px 0;
        gap: 54px;
    }

    .agent4-bottleneck__copy h2,
    .agent4-boundary__copy h2,
    .agent4-context__copy h2,
    .agent4-layers__copy h2,
    .agent4-code__copy h2,
    .agent4-compounding__copy h2,
    .agent4-decision__heading h2,
    .agent4-final h2 {
        font-size: clamp(38px, 11vw, 46px);
    }

    .agent4-bottleneck__copy p,
    .agent4-boundary__note,
    .agent4-context__copy p,
    .agent4-layers__copy > p,
    .agent4-code__copy p,
    .agent4-compounding__copy p,
    .agent4-comparison__heading p,
    .agent4-decision__heading p {
        font-size: 17px;
    }

    .agent4-duplication {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px 18px;
    }

    .agent4-duplication__ellipsis {
        height: 26px;
        margin: 0;
        grid-column: 1 / -1;
    }

    .agent4-private-stack:last-child {
        width: calc((100% - 18px) / 2);
        grid-column: 1 / -1;
        justify-self: center;
    }

    .agent4-stack-box li {
        font-size: 10px;
    }

    .agent4-boundary__diagram {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .agent4-boundary__arrow {
        margin: -8px auto;
        transform: rotate(90deg);
    }

    .agent4-cloud-box__items {
        grid-template-columns: repeat(2, 1fr);
    }

    .agent4-context__rail {
        grid-template-columns: 1fr;
    }

    .agent4-context__rail article {
        min-height: 0;
        padding: 30px 26px 34px;
    }

    .agent4-context__rail article:nth-child(odd) {
        border-right: 0;
    }

    .agent4-context__rail article:nth-child(-n + 2) {
        border-bottom: 0;
    }

    .agent4-context__rail article:not(:last-child) {
        border-bottom: 1px solid var(--agent4-context-border);
    }

    .agent4-layers__copy {
        margin-bottom: 48px;
        text-align: left;
    }

    .agent4-layers__copy > p {
        margin-left: 0;
    }

    .agent4-layer-list {
        padding-left: 12px;
    }

    .agent4-layer-list article {
        min-height: 105px;
        padding: 18px 18px 18px 32px;
        grid-template-columns: 36px 1fr;
        gap: 5px 12px;
    }

    .agent4-layer-list p {
        min-height: 0;
        padding: 5px 0 0;
        grid-column: 2;
        border-left: 0;
        font-size: 14px;
        line-height: 1.5;
        white-space: normal;
    }

    .agent4-layers__actions {
        margin-top: 34px;
    }

    .agent4-layers__actions .v4-button {
        width: 100%;
        padding-right: 20px;
        padding-left: 20px;
        border-radius: 999px;
    }

    .agent4-code__examples {
        grid-template-columns: 1fr;
    }

    .agent4-code__explore {
        width: 100%;
        padding-right: 17px;
        padding-left: 17px;
        justify-content: center;
        text-align: center;
    }

    .agent4-code pre,
    .agent4-code__test pre {
        font-size: 12.5px;
    }

    .agent4-comparison .v4-shell,
    .agent4-decision > .v4-shell {
        padding-top: 96px;
        padding-bottom: 96px;
    }

    .agent4-comparison__heading {
        margin-bottom: 46px;
        text-align: left;
    }

    .agent4-comparison__table {
        display: none;
    }

    .agent4-comparison__mobile {
        display: grid;
        gap: 12px;
    }

    .agent4-comparison__mobile details {
        overflow: hidden;
        border: 1px solid rgba(221, 247, 255, 0.09);
        border-radius: 18px;
        background:
            linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008)),
            rgba(12, 13, 16, 0.82);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
    }

    .agent4-comparison__mobile details.is-fluxzero {
        border-color: rgba(89, 163, 236, 0.54);
        background: rgba(15, 42, 72, 0.55);
    }

    .agent4-comparison__mobile summary {
        display: flex;
        min-height: 78px;
        padding: 16px 19px;
        align-items: center;
        justify-content: space-between;
        list-style: none;
        cursor: pointer;
    }

    .agent4-comparison__mobile summary::-webkit-details-marker {
        display: none;
    }

    .agent4-comparison__mobile summary span {
        display: grid;
        gap: 4px;
    }

    .agent4-comparison__mobile summary strong {
        color: #edf4fc;
        font-size: 18px;
    }

    .agent4-comparison__mobile summary small {
        color: #91a2b7;
        font-size: 13px;
    }

    .agent4-comparison__mobile details.is-fluxzero summary strong {
        color: #8fc7ff;
    }

    .agent4-comparison__mobile summary .bx {
        transition: transform 180ms ease;
    }

    .agent4-comparison__mobile details[open] summary .bx {
        transform: rotate(180deg);
    }

    .agent4-comparison__mobile dl {
        margin: 0;
        padding: 0 19px 22px;
    }

    .agent4-comparison__mobile dt {
        padding-top: 17px;
        border-top: 1px solid rgba(124, 151, 179, 0.2);
        color: #eef3fa;
        font-size: 14px;
        font-weight: 600;
    }

    .agent4-comparison__mobile dd {
        margin: 5px 0 16px;
        color: #9eadbf;
        font-size: 15px;
        line-height: 1.5;
    }

    .agent4-compounding__visual {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .agent4-compounding__connector {
        width: min(280px, 84%);
        margin: 0 auto;
    }

    .agent4-compounding__improvements {
        grid-template-columns: repeat(2, 1fr);
    }

    .agent4-compounding__products {
        padding-left: 0;
    }

    .agent4-compounding__products small {
        text-align: center;
    }

    .agent4-compounding__products > div {
        margin: 0 auto;
    }

    .agent4-decision__heading {
        text-align: left;
    }

    .agent4-decision__heading p {
        margin-left: 0;
    }

    .agent4-decision__options {
        margin-top: 54px;
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .agent4-decision__options article {
        min-height: 0;
        padding: 0;
    }

    .agent4-decision__options article + article {
        padding-top: 48px;
        border-top: 1px solid rgba(124, 151, 179, 0.28);
        border-left: 0;
    }

    .agent4-final,
    .agent4-final__inner {
        min-height: 520px;
    }

    .agent4-final__inner {
        padding: 96px 0;
    }

    .agent4-final .v4-actions {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .agent4-page main {
        padding-top: 58px;
    }

    .agent4-page [id] {
        scroll-margin-top: 84px;
    }

    .agent4-page [data-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .agent4-page *,
    .agent4-page *::before,
    .agent4-page *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .agent4-page [data-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}