.ai-page {
    --ai-ink: #111111;
    --ai-muted: #5f6f89;
    --ai-surface: #f5f6f8;
    --ai-line: #dfe3e8;
    --ai-accent: #ffb454;
    color: var(--ai-ink);
}

.ai-shell {
    width: min(1160px, calc(100% - 48px));
    margin: 0 auto;
}

.ai-section {
    padding: 104px 0;
}

.ai-kicker {
    margin: 0 0 14px;
    color: #bb6b00;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.ai-heading {
    max-width: 850px;
    margin: 0;
    font-size: clamp(34px, 4.6vw, 64px);
    font-weight: 300;
    letter-spacing: -.045em;
    line-height: 1.04;
}

.ai-lead {
    max-width: 760px;
    margin: 24px 0 0;
    color: var(--ai-muted);
    font-size: 19px;
    font-weight: 300;
    line-height: 1.7;
}

.ai-hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #080a0d;
}

.ai-hero__media,
.ai-hero__overlay {
    position: absolute;
    inset: 0;
}

.ai-hero__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(2px);
    transform: scale(1.02);
}

.ai-hero__overlay {
    background: linear-gradient(90deg, rgba(4, 5, 7, .96) 0%, rgba(4, 5, 7, .82) 54%, rgba(4, 5, 7, .46) 100%);
}

.ai-hero__content {
    position: relative;
    z-index: 1;
    padding: 150px 0 90px;
    color: #fff;
}

.ai-hero__eyebrow {
    margin: 0 0 20px;
    color: var(--ai-accent);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.ai-hero h1 {
    max-width: 900px;
    margin: 0;
    font-size: clamp(42px, 6vw, 78px);
    font-weight: 650;
    letter-spacing: -.05em;
    line-height: .99;
}

.ai-hero__copy {
    max-width: 780px;
    margin: 28px 0 0;
    padding-left: 20px;
    border-left: 4px solid var(--ai-accent);
    color: rgba(255, 255, 255, .84);
    font-size: clamp(18px, 2vw, 23px);
    font-weight: 300;
    line-height: 1.55;
}

.ai-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.ai-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    padding: 13px 22px;
    border: 1px solid var(--ai-accent);
    background: var(--ai-accent);
    color: #111;
    font-size: 15px;
    font-weight: 800;
    transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.ai-button:hover,
.ai-button:focus-visible {
    background: #fff;
    border-color: #fff;
}

.ai-button--ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, .55);
    color: #fff;
}

.ai-button--ghost:hover,
.ai-button--ghost:focus-visible {
    color: #111;
}

.ai-button--dark {
    border-color: #111;
    background: #111;
    color: #fff;
}

.ai-button--dark:hover,
.ai-button--dark:focus-visible {
    border-color: var(--ai-accent);
    background: var(--ai-accent);
    color: #111;
}

.ai-intro-grid,
.ai-security-grid,
.ai-faq-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
    gap: 72px;
    align-items: start;
}

.ai-signals {
    border-top: 1px solid var(--ai-line);
}

.ai-signal {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 18px;
    padding: 24px 0;
    border-bottom: 1px solid var(--ai-line);
}

.ai-signal strong {
    color: #bb6b00;
    font-size: 24px;
    font-weight: 300;
}

.ai-signal h3,
.ai-card h3,
.ai-method h3,
.ai-solution h3,
.ai-use h3,
.ai-security-card h3 {
    margin: 0 0 8px;
    font-size: 20px;
    font-weight: 750;
    line-height: 1.25;
}

.ai-signal p,
.ai-card p,
.ai-method p,
.ai-solution p,
.ai-use p,
.ai-security-card p {
    margin: 0;
    color: var(--ai-muted);
    font-size: 15px;
    line-height: 1.65;
}

.ai-surface {
    background: var(--ai-surface);
}

.ai-card-grid,
.ai-method-grid,
.ai-use-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 48px;
}

.ai-card,
.ai-method,
.ai-use {
    min-height: 230px;
    padding: 28px;
    background: #fff;
    border: 1px solid var(--ai-line);
}

.ai-card svg,
.ai-use svg,
.ai-security-card svg {
    width: 30px;
    height: 30px;
    margin-bottom: 36px;
    color: #bb6b00;
}

.ai-method {
    min-height: 250px;
    background: transparent;
    border-color: #343434;
}

.ai-method__number {
    display: block;
    margin-bottom: 46px;
    color: var(--ai-accent);
    font-size: 40px;
    font-weight: 200;
}

.ai-dark {
    background: #151515;
    color: #fff;
}

.ai-dark .ai-heading,
.ai-dark .ai-method h3,
.ai-dark .ai-security-card h3 {
    color: #fff;
}

.ai-dark .ai-lead,
.ai-dark .ai-method p,
.ai-dark .ai-security-card p {
    color: rgba(255, 255, 255, .7);
}

.ai-security-list {
    display: grid;
    gap: 1px;
    background: #383838;
}

.ai-security-card {
    padding: 26px;
    background: #202020;
}

.ai-security-card h3 {
    color: #fff;
}

.ai-security-card p {
    color: rgba(255, 255, 255, .7);
}

.ai-security-card svg {
    margin-bottom: 18px;
    color: var(--ai-accent);
}

.ai-solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 50px;
}

.ai-solution {
    display: grid;
    grid-template-columns: 180px 1fr;
    min-height: 220px;
    overflow: hidden;
    border: 1px solid var(--ai-line);
    background: #fff;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.ai-solution:hover,
.ai-solution:focus-visible {
    transform: translateY(-3px);
    border-color: var(--ai-accent);
    box-shadow: 0 18px 40px rgba(17, 17, 17, .09);
}

.ai-solution img {
    width: 100%;
    height: 100%;
    min-height: 220px;
    object-fit: cover;
}

.ai-solution__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 26px;
}

.ai-solution__label {
    margin-top: 20px;
    color: #9a5700;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ai-faq-list details {
    border-top: 1px solid var(--ai-line);
}

.ai-faq-list details:last-child {
    border-bottom: 1px solid var(--ai-line);
}

.ai-faq-list summary {
    position: relative;
    padding: 22px 42px 22px 0;
    cursor: pointer;
    list-style: none;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
}

.ai-faq-list summary::-webkit-details-marker {
    display: none;
}

.ai-faq-list summary::after {
    content: "+";
    position: absolute;
    top: 18px;
    right: 0;
    color: #bb6b00;
    font-size: 28px;
    font-weight: 300;
}

.ai-faq-list details[open] summary::after {
    content: "−";
}

.ai-faq-list details p {
    margin: -2px 44px 22px 0;
    color: var(--ai-muted);
    font-size: 16px;
    line-height: 1.65;
}

.ai-final {
    background: var(--ai-accent);
}

.ai-final__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 52px;
    align-items: end;
}

.ai-final .ai-kicker {
    color: #111;
}

.ai-final .ai-heading {
    max-width: 900px;
}

@media (max-width: 980px) {
    .ai-card-grid,
    .ai-method-grid,
    .ai-use-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-solutions-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .ai-shell {
        width: min(100% - 32px, 1160px);
    }

    .ai-section {
        padding: 72px 0;
    }

    .ai-hero {
        min-height: 600px;
    }

    .ai-hero__content {
        padding: 135px 0 70px;
    }

    .ai-intro-grid,
    .ai-security-grid,
    .ai-faq-grid,
    .ai-final__grid {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .ai-card-grid,
    .ai-method-grid,
    .ai-use-grid {
        grid-template-columns: 1fr;
        margin-top: 36px;
    }

    .ai-card,
    .ai-method,
    .ai-use {
        min-height: 0;
    }

    .ai-solution {
        grid-template-columns: 1fr;
    }

    .ai-solution img {
        height: 210px;
        min-height: 0;
    }

    .ai-final__grid .ai-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ai-button,
    .ai-solution {
        transition: none;
    }
}