:root {
    --ink: #101820;
    --muted: #667384;
    --soft: #f3f6f9;
    --line: #dde5ee;
    --white: #ffffff;
    --blue: #155eef;
    --blue-dark: #0f3fa8;
    --cyan: #1eb7c8;
    --navy: #111a27;
    --navy-2: #1b2c42;
    --green: #19a974;
    --shadow: 0 24px 70px rgba(16, 24, 32, .14);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--white);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    line-height: 1.55;
}

a {
    color: inherit;
    text-decoration: none;
}

img,
video {
    display: block;
    max-width: 100%;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 26px;
    min-height: 74px;
    padding: 0 5vw;
    background: rgba(255, 255, 255, .94);
    border-bottom: 1px solid rgba(221, 229, 238, .9);
    backdrop-filter: blur(16px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 188px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    color: var(--white);
    background: linear-gradient(135deg, var(--navy), var(--blue));
    border-radius: 8px;
    font-weight: 850;
}

.brand strong,
.brand em {
    display: block;
}

.brand em {
    color: var(--muted);
    font-size: 12px;
    font-style: normal;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 25px;
    color: #243246;
    font-size: 14px;
    font-weight: 720;
}

.main-nav a:hover,
.footer-links a:hover {
    color: var(--blue);
}

.button,
.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
}

.button.primary,
.header-cta {
    color: var(--white);
    background: var(--blue);
}

.button.primary:hover,
.header-cta:hover {
    background: var(--blue-dark);
}

.button.secondary {
    color: var(--ink);
    background: var(--white);
    border-color: var(--line);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(520px, 1.08fr);
    gap: 58px;
    align-items: start;
    min-height: calc(100vh - 74px);
    padding: 70px 5vw 62px;
}

.hero-copy {
    padding-top: 4px;
}

.platform-hero {
    color: var(--white);
    background:
        radial-gradient(circle at 72% 18%, rgba(30, 183, 200, .22), transparent 28%),
        linear-gradient(135deg, #0b111b 0%, #142236 48%, #0e1826 100%);
}

.hero h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(36px, 4.1vw, 60px);
    line-height: 1.06;
    letter-spacing: 0;
}

.hero-lead {
    max-width: 690px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, .78);
    font-size: 19px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 34px;
}

.hero-actions .button {
    min-height: 70px;
    padding: 0 42px;
    font-size: 21px;
    border-radius: 10px;
    box-shadow: 0 22px 48px rgba(0, 0, 0, .3);
}

.hero-actions .button.primary {
    background: #0b72ff;
    box-shadow: 0 24px 52px rgba(21, 94, 239, .42);
}

.hero-actions .button.primary:hover {
    background: #005de0;
}

.hero-actions .button.secondary {
    color: var(--white);
    background: rgba(255, 255, 255, .18);
    border-color: rgba(255, 255, 255, .74);
    border-width: 2px;
    backdrop-filter: blur(10px);
}

.hero-actions .button.secondary:hover {
    background: rgba(255, 255, 255, .28);
}

.secure-note {
    margin: 18px 0 0;
    color: rgba(255, 255, 255, .68);
    font-size: 13px;
    font-weight: 650;
}

.proof-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(90px, 1fr));
    gap: 12px;
    max-width: 690px;
    margin: 38px 0 0;
}

.proof-strip div {
    padding: 16px 14px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 8px;
}

.proof-strip dt {
    color: var(--white);
    font-size: 25px;
    font-weight: 900;
}

.proof-strip dd {
    margin: 2px 0 0;
    color: rgba(255, 255, 255, .65);
    font-size: 12px;
}

.hero-showcase {
    position: relative;
    display: grid;
    grid-template-columns: 1fr .82fr;
    gap: 16px;
    align-items: stretch;
}

.hero-showcase figure {
    margin: 0;
}

.hero-showcase img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #eef3f8;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.media-main {
    min-height: 620px;
}

.media-side {
    min-height: 620px;
}

.quote-form label {
    display: grid;
    gap: 7px;
    color: #263445;
    font-size: 13px;
    font-weight: 800;
}

.quote-form input,
.quote-form textarea {
    width: 100%;
    padding: 12px 13px;
    color: var(--ink);
    background: var(--white);
    border: 1px solid #c9d3df;
    border-radius: 8px;
    font: inherit;
    font-size: 14px;
}

.quote-form textarea {
    resize: vertical;
}

.quote-form input:focus,
.quote-form textarea:focus {
    border-color: var(--blue);
    outline: 3px solid rgba(21, 94, 239, .15);
}

.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border-bottom: 1px solid var(--line);
}

.trust-strip div {
    min-height: 126px;
    padding: 28px 5vw 24px;
    background: var(--white);
}

.trust-strip strong {
    display: block;
    font-size: 22px;
    line-height: 1.1;
}

.trust-strip span {
    display: block;
    margin-top: 8px;
    color: var(--muted);
    font-size: 14px;
}

.section {
    padding: 88px 5vw;
}

.section-heading {
    max-width: 620px;
}

.section-heading.wide {
    max-width: 940px;
    margin-bottom: 40px;
}

.section-heading h2,
.smart-copy h2,
.quote-copy h2,
.response-card h1 {
    margin: 0;
    font-size: clamp(32px, 3.35vw, 54px);
    line-height: 1.06;
    letter-spacing: 0;
}

.section-heading p,
.smart-copy p,
.quote-copy p,
.response-card p {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 17px;
}

.capability-tabs {
    display: grid;
    gap: 22px;
}

.capability-tabs input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tab-labels {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-labels label {
    min-height: 44px;
    padding: 12px 17px;
    color: #263445;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
}

#capability-0:checked ~ .tab-labels label[for="capability-0"],
#capability-1:checked ~ .tab-labels label[for="capability-1"],
#capability-2:checked ~ .tab-labels label[for="capability-2"] {
    color: var(--white);
    background: var(--blue);
    border-color: var(--blue);
}

.tab-panels {
    position: relative;
}

.tab-panel {
    display: none;
    grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr);
    gap: 46px;
    align-items: center;
    padding: 32px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 8px;
}

#capability-0:checked ~ .tab-panels .panel-0,
#capability-1:checked ~ .tab-panels .panel-1,
#capability-2:checked ~ .tab-panels .panel-2 {
    display: grid;
}

.tab-panel h3 {
    margin: 0;
    font-size: clamp(27px, 2.6vw, 40px);
    line-height: 1.08;
}

.tab-panel p {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 16px;
}

.tab-panel ul,
.smart-copy ul {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 22px 0 0;
    list-style: none;
}

.tab-panel li,
.smart-copy li {
    position: relative;
    padding-left: 22px;
    color: #334155;
    font-weight: 650;
}

.tab-panel li::before,
.smart-copy li::before {
    position: absolute;
    left: 0;
    top: .62em;
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    content: "";
}

.panel-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
}

.tab-panel img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: #eef3f8;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.scenario-section,
.workflow-section {
    background: #fbfcfe;
}

.scenario-grid,
.case-grid,
.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.scenario-grid article,
.resource-grid article {
    min-height: 210px;
    padding: 26px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.scenario-grid h3,
.case-grid h3,
.resource-grid h3,
.workflow-list h3,
.factory-showcase h3 {
    margin: 0;
    font-size: 19px;
    line-height: 1.2;
}

.scenario-grid p,
.case-grid p,
.resource-grid p,
.workflow-list p,
.factory-showcase p {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 15px;
}

.smart-hub {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(460px, 1.15fr);
    gap: 56px;
    align-items: center;
    color: var(--white);
    background: linear-gradient(135deg, var(--navy), var(--navy-2));
}

.smart-copy p {
    color: rgba(255, 255, 255, .72);
}

.smart-copy li {
    color: rgba(255, 255, 255, .84);
}

.factory-media {
    display: grid;
    gap: 16px;
}

.factory-media video,
.factory-media img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: #0a1019;
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.factory-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
}

.factory-showcase article {
    min-height: 238px;
    padding: 30px 5vw 28px;
    background: var(--white);
}

.factory-showcase strong {
    display: block;
    margin-bottom: 18px;
    color: var(--blue);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.cases-section {
    background: var(--white);
}

.case-grid article {
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.case-grid img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: #eef3f8;
}

.case-grid h3,
.case-grid p {
    padding-left: 22px;
    padding-right: 22px;
}

.case-grid h3 {
    padding-top: 20px;
}

.case-grid p {
    padding-bottom: 24px;
}

.workflow-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    padding: 0;
    margin: 0;
    list-style: none;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.workflow-list li {
    min-height: 244px;
    padding: 25px;
    background: var(--white);
}

.workflow-list span {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 22px;
    color: var(--white);
    background: var(--ink);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 900;
}

.resource-grid article {
    min-height: 238px;
}

.resource-grid a {
    display: inline-block;
    margin-top: 18px;
    color: var(--blue);
    font-weight: 850;
}

.quote-section {
    display: grid;
    grid-template-columns: .82fr 1.18fr;
    gap: 54px;
    align-items: start;
    background: #f8fafc;
}

.contact-card {
    display: grid;
    gap: 8px;
    margin-top: 28px;
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.contact-card a {
    color: var(--blue);
    font-weight: 800;
}

.contact-card span {
    color: var(--muted);
    font-size: 13px;
}

.quote-form {
    display: grid;
    gap: 16px;
    padding: 30px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.file-field span,
.form-note {
    color: var(--muted);
    font-size: 12px;
    font-weight: 500;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    padding: 42px 5vw;
    color: rgba(255, 255, 255, .76);
    background: #101821;
}

.site-footer strong {
    color: var(--white);
    font-size: 18px;
}

.site-footer p {
    max-width: 620px;
    margin: 8px 0 0;
}

.footer-links {
    display: grid;
    gap: 9px;
    text-align: right;
}

.response-page {
    display: grid;
    place-items: center;
    min-height: calc(100vh - 74px);
    padding: 60px 5vw;
    background: #f8fafc;
}

.response-card {
    width: min(760px, 100%);
    padding: 42px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

@media (max-width: 1160px) {
    .hero,
    .smart-hub,
    .quote-section,
    .tab-panel {
        grid-template-columns: 1fr;
    }

    .main-nav {
        gap: 16px;
    }

    .trust-strip,
    .factory-showcase {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 820px) {
    .main-nav {
        display: none;
    }

    .hero {
        min-height: auto;
        padding-top: 50px;
    }

    .hero-showcase,
    .scenario-grid,
    .case-grid,
    .resource-grid {
        grid-template-columns: 1fr;
    }

    .media-main,
    .media-side {
        min-height: 280px;
    }

    .proof-strip,
    .trust-strip,
    .factory-showcase,
    .workflow-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .site-header {
        min-height: 68px;
        padding: 0 18px;
    }

    .brand {
        min-width: 0;
    }

    .brand em,
    .header-cta {
        display: none;
    }

    .hero,
    .section {
        padding-left: 18px;
        padding-right: 18px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-lead {
        font-size: 17px;
    }

    .tab-panel,
    .quote-form,
    .response-card {
        padding: 22px;
    }

    .site-footer {
        display: grid;
        padding: 34px 18px;
    }

    .footer-links {
        text-align: left;
    }
}