.intro {
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(248, 251, 252, 0.08);
    background: linear-gradient(180deg, rgba(12, 15, 18, 0.74), rgba(9, 12, 15, 0.9));
}

.intro::before,
.pain::before,
.business::before,
.tech::before,
.delivery::before,
.faq::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(115deg, transparent 0 56%, rgba(179, 58, 58, 0.035) 56% 68%, transparent 68%),
        radial-gradient(circle at 78% 18%, rgba(248, 251, 252, 0.08), transparent 30%);
    background-size: auto;
    opacity: 0.42;
}

.intro {
    padding-top: 72px;
    padding-bottom: 72px;
}

.intro-grid,
.tech-grid,
.delivery-grid,
.faq-grid {
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    gap: 56px;
    align-items: start;
}

.intro-grid {
    align-items: center;
}

.intro-copy {
    display: grid;
    gap: 18px;
    color: rgba(248, 251, 252, 0.68);
    font-size: 1.08rem;
}

.pain {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(9, 12, 15, 0.88), rgba(13, 17, 21, 0.82) 52%, rgba(9, 12, 15, 0.88));
}

.pain .container,
.business .container,
.tech .container,
.delivery .container,
.faq .container {
    position: relative;
    z-index: 1;
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 48px;
}

.pain-card,
.product-card,
.delivery-list article,
.faq-list details {
    background:
        linear-gradient(135deg, rgba(248, 251, 252, 0.075), rgba(248, 251, 252, 0.024) 54%, rgba(179, 58, 58, 0.045)),
        var(--surface);
}

.pain-card {
    position: relative;
    overflow: hidden;
    min-height: 250px;
    padding: 28px;
    border: 1px solid rgba(248, 251, 252, 0.12);
    border-radius: var(--card-radius);
}

.pain-card::before,
.product-card::before,
.matrix div::before,
.delivery-list article::before,
.faq-list details::before,
.case-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, transparent 0 20px, rgba(248, 251, 252, 0.052) 20px 22px, transparent 22px 44px),
        linear-gradient(0deg, transparent 0 20px, rgba(248, 251, 252, 0.04) 20px 22px, transparent 22px 44px),
        linear-gradient(135deg, transparent 0 62%, rgba(179, 58, 58, 0.12) 62% 64%, transparent 64%);
    background-size: 88px 88px, 88px 88px, auto;
    opacity: 0;
    transition: opacity 0.32s ease, transform 0.32s ease;
}

.pain-card::after,
.product-card::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 5px;
    background:
        linear-gradient(90deg, var(--accent), rgba(248, 251, 252, 0.7), transparent),
        linear-gradient(90deg, transparent 0 28px, rgba(248, 251, 252, 0.18) 28px 30px, transparent 30px 60px);
    background-size: auto, 90px 100%;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.34s ease;
}

.pain-card:hover::after,
.product-card:hover::after {
    transform: scaleX(1);
}

.pain-card:hover::before,
.product-card:hover::before,
.matrix div:hover::before,
.delivery-list article:hover::before,
.faq-list details:hover::before,
.case-card:hover::before,
.interactive-grid .is-active::before {
    opacity: 0.7;
    transform: translate3d(10px, -10px, 0);
}

.pain-card span,
.card-index,
.case-card span,
.delivery-list span {
    display: inline-flex;
    margin-bottom: 22px;
    color: var(--accent);
    font-weight: 800;
}

.pain-card h3,
.product-card h3,
.case-card h3,
.delivery-list h3 {
    font-size: var(--fs-h3);
    line-height: 1.24;
}

.pain-card p,
.product-card p:not(.card-kicker),
.delivery-list p,
.faq-list p {
    margin-top: 14px;
    color: var(--muted);
}

.system {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(8, 11, 14, 0.9), rgba(12, 15, 18, 0.86));
}

.system::before,
.cases::before,
.contact::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(115deg, transparent 0 58%, rgba(179, 58, 58, 0.04) 58% 70%, transparent 70%),
        radial-gradient(circle at 18% 18%, rgba(248, 251, 252, 0.07), transparent 28%);
    pointer-events: none;
}

.system .container,
.cases .container,
.contact .container {
    position: relative;
    z-index: 1;
}

.system-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
}

.system-flow article {
    position: relative;
    overflow: hidden;
    min-height: 280px;
    padding: 28px;
    border: 1px solid rgba(248, 251, 252, 0.14);
    border-radius: var(--card-radius);
    background:
        linear-gradient(145deg, rgba(248, 251, 252, 0.06), rgba(248, 251, 252, 0.018)),
        rgba(18, 22, 26, 0.76);
}

.system-flow article::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(248, 251, 252, 0.09), transparent);
    transform: translateX(-110%);
    transition: transform 0.7s ease;
}

.system-flow article:hover::before {
    transform: translateX(110%);
}

.system-flow span {
    color: rgba(248, 251, 252, 0.42);
    font-weight: 800;
}

.system-flow h3 {
    margin-top: 72px;
    color: var(--white);
    font-size: var(--fs-h3);
}

.system-flow p {
    margin-top: 12px;
    color: rgba(248, 251, 252, 0.64);
}

.business {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 20%, rgba(179, 58, 58, 0.12), transparent 28%),
        rgba(9, 12, 15, 0.9);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 48px;
}

.product-card,
.case-card,
.contact-form {
    border: 1px solid var(--line);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
}

.product-card {
    position: relative;
    overflow: hidden;
    min-height: 100%;
    padding: 28px;
}

.product-card::after {
    height: 6px;
}

.card-kicker {
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 800;
}

.product-card h3,
.case-card h3 {
    margin-top: 10px;
}

.product-card ul {
    display: grid;
    gap: 10px;
    margin-top: 22px;
    list-style: none;
}

.product-card li {
    position: relative;
    padding-left: 18px;
    color: rgba(248, 251, 252, 0.72);
}

.product-card li::before {
    content: "";
    position: absolute;
    top: 0.72em;
    left: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
}

.tech {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(13, 17, 21, 0.86), rgba(9, 12, 15, 0.9));
}

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

.matrix div {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 0.42fr 1fr;
    gap: 22px;
    align-items: center;
    min-height: 86px;
    padding: 22px;
    border: 1px solid rgba(248, 251, 252, 0.12);
    border-radius: var(--card-radius);
    background:
        linear-gradient(90deg, rgba(248, 251, 252, 0.06), rgba(248, 251, 252, 0.024)),
        rgba(248, 251, 252, 0.045);
    transition: background 0.24s ease, transform 0.24s ease, border-color 0.24s ease;
}

.matrix span {
    color: var(--muted);
    font-weight: 800;
}

.matrix strong {
    color: var(--white);
}

.matrix div:hover {
    border-color: rgba(248, 251, 252, 0.28);
    background:
        linear-gradient(90deg, rgba(179, 58, 58, 0.1), rgba(248, 251, 252, 0.07), rgba(248, 251, 252, 0.024)),
        rgba(248, 251, 252, 0.06);
    transform: translateX(16px) skewX(-2deg);
}

.cases {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 12% 10%, rgba(248, 251, 252, 0.1), transparent 28%),
        rgba(12, 15, 18, 0.88);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.case-card {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(145deg, rgba(248, 251, 252, 0.06), rgba(248, 251, 252, 0.018)),
        rgba(248, 251, 252, 0.06);
    border-color: rgba(248, 251, 252, 0.14);
    box-shadow: none;
}

.case-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    filter: grayscale(0.2) saturate(0.72) contrast(1.08);
}

.case-card div {
    padding: 22px;
}

.case-card h3 {
    color: var(--white);
}

.case-card p {
    color: rgba(248, 251, 252, 0.62);
}

.delivery {
    position: relative;
    overflow: hidden;
    background: rgba(9, 12, 15, 0.9);
}

.delivery-list {
    display: grid;
    gap: 12px;
}

.delivery-list article {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 72px 0.42fr 1fr;
    gap: 22px;
    align-items: center;
    min-height: 108px;
    padding: 22px;
    border: 1px solid rgba(248, 251, 252, 0.12);
    border-radius: var(--card-radius);
    transition: background 0.24s ease, transform 0.24s ease;
}

.delivery-list article:hover {
    border-color: rgba(248, 251, 252, 0.26);
    background: linear-gradient(90deg, rgba(179, 58, 58, 0.08), rgba(248, 251, 252, 0.08));
    transform: translateX(18px) skewX(-1.6deg);
}

.delivery-list span {
    margin-bottom: 0;
}

.delivery-list p {
    margin-top: 0;
}

.faq {
    position: relative;
    overflow: hidden;
    background: rgba(13, 17, 21, 0.86);
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-list details {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(248, 251, 252, 0.12);
    border-radius: var(--card-radius);
    padding: 20px 22px;
    box-shadow: var(--shadow-soft);
}

.faq-list summary {
    cursor: pointer;
    color: var(--white);
    font-weight: 800;
}

.contact {
    position: relative;
    overflow: hidden;
    background: rgba(12, 15, 18, 0.9);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 36px;
    align-items: start;
}

.contact-copy h2 {
    max-width: 620px;
}

.contact-list {
    display: grid;
    gap: 14px;
    margin-top: 34px;
    color: rgba(248, 251, 252, 0.72);
}

.contact-list span {
    display: inline-flex;
    min-width: 44px;
    margin-right: 12px;
    color: var(--white);
    font-weight: 800;
}

.contact-form {
    padding: 26px;
    background: rgba(248, 251, 252, 0.06);
    border-color: var(--line-dark);
    backdrop-filter: blur(16px);
}

.contact-form label {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    color: rgba(248, 251, 252, 0.82);
    font-weight: 800;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(248, 251, 252, 0.18);
    border-radius: var(--radius-sm);
    background: rgba(248, 251, 252, 0.08);
    color: var(--white);
    padding: 13px 14px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form textarea {
    min-height: 130px;
    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(248, 251, 252, 0.42);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--white);
    box-shadow: 0 0 0 3px rgba(248, 251, 252, 0.16);
}

.contact-form .is-invalid {
    border-color: var(--accent);
}

.contact-form .is-valid {
    border-color: rgba(248, 251, 252, 0.62);
}

.contact-form.is-submitting {
    pointer-events: none;
}

.contact-status {
    min-height: 22px;
    margin-top: 14px;
    color: rgba(248, 251, 252, 0.58);
    font-size: 0.88rem;
    line-height: 1.55;
}

.contact-status.is-warning {
    color: rgba(248, 251, 252, 0.72);
}

.contact-status.is-success {
    color: var(--white);
}

.contact-status.is-error {
    color: rgba(255, 146, 146, 0.9);
}

@media (max-width: 1040px) {
    .system-flow {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .pain-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 920px) {
    .intro-grid,
    .tech-grid,
    .delivery-grid,
    .faq-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .product-grid,
    .case-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .pain-grid,
    .system-flow,
    .product-grid,
    .case-grid {
        grid-template-columns: 1fr;
    }

    .system-flow article {
        min-height: 210px;
    }

    .system-flow h3 {
        margin-top: 44px;
    }

    .matrix div,
    .delivery-list article {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}