/* Layout: a records-room ledger. Left-aligned column, a hero query "terminal card", then ruled sections like an index. */
:root {
    --paper: #eef1f4;
    --sheet: #ffffff;
    --ink: #14202e;
    --muted: #566577;
    --rule: #cfd6de;
    --accent: #b6501f; /* stamp-ink rust */
    --accent-soft: #f3e2d8;
    --ok: #2f7a4f;
    --cta: #cf4a0c; /* call-to-action orange, white text passes AA */
    --cta-hover: #a8380a;
    --display: "Archivo", "Arial Narrow", Arial, sans-serif;
    --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --paper: #0f161e;
        --sheet: #17212c;
        --ink: #e6ebf0;
        --muted: #93a2b2;
        --rule: #2a3745;
        --accent: #e57d4a;
        --accent-soft: #3a2519;
        --ok: #6cc293;
        color-scheme: dark
    }
}

:root[data-theme="dark"] {
    --paper: #0f161e;
    --sheet: #17212c;
    --ink: #e6ebf0;
    --muted: #93a2b2;
    --rule: #2a3745;
    --accent: #e57d4a;
    --accent-soft: #3a2519;
    --ok: #6cc293;
    color-scheme: dark
}

* {
    box-sizing: border-box;
}

img {
    max-width: 100%;
}

[hidden] {
    display: none !important;
}

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    * {
        animation: none !important;
        transition: none !important;
    }
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--body);
    font-size: 17px;
    line-height: 1.6;
}

a {
    color: inherit;
}

    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
        outline: 3px solid var(--accent);
        outline-offset: 2px;
    }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* Header */
body::before {
    content: "";
    position: fixed;
    inset: 0 0 auto;
    height: env(safe-area-inset-top, 0px);
    z-index: 10;
    background: var(--paper);
}

header.top {
    position: sticky;
    top: env(safe-area-inset-top, 0px);
    z-index: 5;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
}

    header.top .wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding-block: 14px;
    }

.logo {
    font-family: var(--display);
    font-stretch: 112%;
    font-weight: 800;
    font-size: 22px;
    letter-spacing: -0.01em;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

    .logo .mark {
        width: 26px;
        height: 30px;
        border: 2.5px solid var(--ink);
        border-radius: 3px;
        position: relative;
    }

        .logo .mark::after {
            content: "";
            position: absolute;
            right: -2.5px;
            top: -2.5px;
            width: 9px;
            height: 9px;
            background: var(--accent);
        }

    .logo .iq {
        color: var(--accent);
    }

nav.links {
    display: flex;
    gap: 22px;
    align-items: center;
    font-size: 15px;
}

    nav.links a {
        text-decoration: none;
        color: var(--muted);
    }

        nav.links a:hover {
            color: var(--ink);
        }

.btn {
    display: inline-block;
    font: 700 15px/1 var(--body);
    padding: 13px 20px;
    border-radius: 4px;
    border: 2px solid var(--cta);
    background: var(--cta);
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 6px 16px -8px var(--cta);
    transition: background .15s ease, transform .15s ease;
}

    .btn:hover {
        background: var(--cta-hover);
        border-color: var(--cta-hover);
        transform: translateY(-1px);
    }

    .btn:not(.ghost), nav.links a.btn, nav.links a.btn:hover {
        color: #fff;
    }

    .btn.ghost {
        background: transparent;
        color: var(--ink);
        border-color: var(--ink);
        box-shadow: none;
    }

        .btn.ghost:hover {
            background: var(--ink);
            border-color: var(--ink);
            color: var(--paper);
        }

@media (max-width: 760px) {
    nav.links a:not(.btn) {
        display: none;
    }
}

/* Hero */
.hero {
    padding-block: 64px 56px;
}

    .hero .grid {
        display: grid;
        grid-template-columns: 1.05fr 1fr;
        gap: 48px;
        align-items: center;
    }

        .hero .grid > * {
            min-width: 0;
        }

.eyebrow {
    font: 500 13px/1.3 var(--mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 18px;
}

h1 {
    font-family: var(--display);
    font-stretch: 112%;
    font-weight: 800;
    font-size: clamp(38px, 5.6vw, 64px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0 0 22px;
    text-wrap: balance;
}

    h1 em {
        font-style: normal;
        color: var(--accent);
    }

.lede {
    font-size: 19px;
    color: var(--muted);
    max-width: 34em;
    margin: 0 0 30px;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.query {
    background: var(--sheet);
    border: 1px solid var(--rule);
    border-radius: 6px;
    box-shadow: 0 18px 40px -24px rgba(20,32,46,.35);
    overflow: hidden;
}

    .query .bar {
        display: flex;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
        font: 500 12px/1 var(--mono);
        color: var(--muted);
        padding: 12px 16px;
        border-bottom: 1px solid var(--rule);
    }

    .query .net {
        color: var(--ok);
        display: flex;
        align-items: center;
        gap: 6px;
    }

        .query .net::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--ok);
        }

    .query .body {
        padding: 18px 18px 20px;
        display: grid;
        gap: 14px;
    }

.ask {
    font-weight: 600;
    font-size: 16px;
    padding: 12px 14px;
    border: 1px solid var(--rule);
    border-radius: 4px;
}

    .ask::before {
        content: "Q  ";
        font-family: var(--mono);
        color: var(--accent);
        font-weight: 500;
    }

.answer {
    font-size: 15.5px;
    line-height: 1.55;
}

    .answer sup {
        font: 500 11px var(--mono);
        color: var(--accent);
    }

.cites {
    display: grid;
    gap: 6px;
    font: 400 12.5px/1.4 var(--mono);
    color: var(--muted);
    border-top: 1px dashed var(--rule);
    padding-top: 12px;
}

    .cites span {
        color: var(--accent);
    }

    .cites div {
        overflow-wrap: anywhere;
    }

.example-tag {
    font: 500 11px var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--muted);
}

@media (max-width: 880px) {
    .hero .grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

/* Sections */
section.band {
    padding-block: 80px;
}

    section.band.alt {
        background: var(--sheet);
        border-block: 1px solid var(--rule);
    }

.alt .hw > div, .alt .who span, .alt form {
    background: var(--paper);
}

.alt input, .alt select, .alt textarea {
    background: var(--sheet);
}

.alt .photo {
    box-shadow: 0 18px 40px -24px rgba(20,32,46,.35);
}

.sec-head {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 32px;
    margin-bottom: 36px;
}

    .sec-head > * {
        min-width: 0;
    }

    .sec-head .tab {
        font: 600 13px/1.4 var(--mono);
        letter-spacing: .08em;
        text-transform: uppercase;
        color: var(--accent);
        align-self: start;
        border-top: 3px solid var(--accent);
        padding-top: 10px;
        width: fit-content;
    }

h2 {
    font-family: var(--display);
    font-stretch: 112%;
    font-weight: 700;
    font-size: clamp(28px, 3.4vw, 40px);
    line-height: 1.1;
    letter-spacing: -0.015em;
    margin: 0;
    text-wrap: balance;
    max-width: 22em;
}

.sec-head p {
    color: var(--muted);
    max-width: 38em;
    margin: 14px 0 0;
}

@media (max-width: 760px) {
    .sec-head {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

.cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 2px solid var(--ink);
}

    .cols > div {
        padding: 22px 24px 8px 0;
        min-width: 0;
    }

        .cols > div + div {
            padding-left: 24px;
            border-left: 1px solid var(--rule);
        }

h3 {
    font-family: var(--display);
    font-stretch: 112%;
    font-weight: 700;
    font-size: 19px;
    margin: 0 0 8px;
}

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

@media (max-width: 820px) {
    .cols {
        grid-template-columns: 1fr;
    }

        .cols > div + div {
            padding-left: 0;
            border-left: 0;
            border-top: 1px solid var(--rule);
        }

        .cols > div {
            padding-right: 0;
        }
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 48px;
}

.feature {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    padding-block: 18px;
    border-bottom: 1px solid var(--rule);
}

    .feature > * {
        min-width: 0;
    }

    .feature .k {
        font: 500 12px/1.5 var(--mono);
        text-transform: uppercase;
        letter-spacing: .06em;
        color: var(--accent);
        padding-top: 3px;
    }

    .feature p {
        margin: 0;
        font-size: 16px;
    }

    .feature b {
        display: block;
        font-weight: 600;
        margin-bottom: 2px;
    }

    .feature span {
        color: var(--muted);
    }

@media (max-width: 820px) {
    .features {
        grid-template-columns: 1fr;
    }

    .feature {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}

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

    .hw > div {
        background: var(--sheet);
        border: 1px solid var(--rule);
        border-radius: 6px;
        padding: 20px;
        min-width: 0;
    }

    .hw .spec {
        font: 400 13px/1.5 var(--mono);
        color: var(--muted);
        margin-top: 8px;
    }

    .hw p {
        margin: 8px 0 0;
        font-size: 15.5px;
        color: var(--muted);
    }

@media (max-width: 820px) {
    .hw {
        grid-template-columns: 1fr;
    }
}

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

    .who span {
        border: 1px solid var(--rule);
        background: var(--sheet);
        padding: 8px 14px;
        border-radius: 999px;
        font-size: 15px;
    }

ol.steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    counter-reset: s;
    border-top: 2px solid var(--ink);
}

    ol.steps li {
        counter-increment: s;
        padding: 18px 20px 0 0;
        min-width: 0;
    }

        ol.steps li::before {
            content: "Step " counter(s);
            display: block;
            font: 500 12px var(--mono);
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }

    ol.steps p {
        margin: 6px 0 0;
        color: var(--muted);
        font-size: 15.5px;
    }

@media (max-width: 820px) {
    ol.steps {
        grid-template-columns: 1fr 1fr;
        row-gap: 20px;
    }
}

@media (max-width: 480px) {
    ol.steps {
        grid-template-columns: 1fr;
    }
}

/* Contact */
.contact {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 48px;
}

    .contact > * {
        min-width: 0;
    }

    .contact .note {
        color: var(--muted);
    }

    .contact .direct {
        margin: 0 0 20px;
        font: 400 15px var(--mono);
    }

form {
    background: var(--sheet);
    border: 1px solid var(--rule);
    border-radius: 6px;
    padding: 24px;
    display: grid;
    gap: 16px;
}

.row2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

    .row2 > * {
        min-width: 0;
    }

label {
    display: grid;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
}

    label small {
        font-weight: 400;
        color: var(--muted);
    }

input, select, textarea {
    font: 400 16px var(--body);
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: 10px 12px;
    width: 100%;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

.sent {
    border: 1px solid var(--ok);
    color: var(--ok);
    border-radius: 4px;
    padding: 14px;
    font-weight: 600;
}

@media (max-width: 820px) {
    .contact {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .row2 {
        grid-template-columns: 1fr;
    }
}

/* Demo video */
.video {
    position: relative;
    aspect-ratio: 16 / 9;
    max-width: 100%;
    background: var(--ink);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--rule);
}

    .video iframe {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        border: 0;
    }

    .video .poster {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        border: 0;
        cursor: pointer;
        background: linear-gradient(135deg, #14202e 0%, #22364b 100%);
        color: #e6ebf0;
        display: grid;
        place-items: center;
        text-align: center;
        padding: 24px;
        font: inherit;
    }

        .video .poster img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .55;
        }

        .video .poster .inner {
            position: relative;
            display: grid;
            gap: 14px;
            justify-items: center;
        }

    .video .play {
        width: 76px;
        height: 76px;
        border-radius: 50%;
        background: var(--accent);
        display: grid;
        place-items: center;
        box-shadow: 0 10px 30px -10px rgba(0,0,0,.6);
        transition: transform .15s ease;
    }

        .video .play::after {
            content: "";
            margin-left: 6px;
            border-style: solid;
            border-width: 14px 0 14px 22px;
            border-color: transparent transparent transparent #fff;
        }

    .video .poster:hover .play {
        transform: scale(1.07);
    }

    .video .poster .t {
        font-family: var(--display);
        font-stretch: 112%;
        font-weight: 700;
        font-size: clamp(18px, 2.4vw, 26px);
        text-shadow: 0 2px 12px rgba(0,0,0,.5);
    }

.video-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 24px;
    margin-top: 12px;
    font-size: 14px;
    color: var(--muted);
}

    .video-meta a {
        color: var(--accent);
        font-weight: 600;
    }

/* Icons */
.ico {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: none;
}

    .ico.sm {
        width: 22px;
        height: 22px;
    }

.cols .ico {
    display: block;
    margin-bottom: 12px;
}

.feature .k {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hw .head {
    display: flex;
    align-items: center;
    gap: 10px;
}

    .hw .head h3 {
        margin: 0;
    }

ol.steps .ico {
    display: block;
    margin-bottom: 8px;
}

/* Photos */
.photo {
    margin: 0;
    border-radius: 6px;
    overflow: hidden;
    background: var(--rule);
    aspect-ratio: 4 / 3;
    max-width: 100%;
}

    .photo img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

.split {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
    align-items: center;
}

    .split > * {
        min-width: 0;
    }

    .split .lead {
        font-size: 18px;
        margin: 0 0 20px;
    }

.contact .photo {
    margin-top: 0;
    aspect-ratio: 3 / 2;
}

@media (max-width: 820px) {
    .split {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

/* On-site banner */
.onsite {
    background: var(--ink);
    color: var(--paper);
}

    .onsite .wrap {
        padding-block: 48px;
        display: grid;
        gap: 28px;
    }

.onsite-head {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

    .onsite-head > div {
        min-width: 0;
    }

.ico.lg {
    width: 48px;
    height: 48px;
    stroke: var(--accent);
    stroke-width: 1.6;
}

.onsite h2 {
    color: var(--paper);
    max-width: none;
}

.onsite-head p {
    margin: 12px 0 0;
    max-width: 46em;
    font-size: 18px;
    opacity: .88;
}

.onsite-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid color-mix(in srgb, var(--paper) 25%, transparent);
}

    .onsite-list li {
        padding: 18px 24px 0 0;
        font-size: 16px;
        opacity: .9;
        min-width: 0;
    }

        .onsite-list li + li {
            padding-left: 24px;
            border-left: 1px solid color-mix(in srgb, var(--paper) 25%, transparent);
        }

    .onsite-list b {
        display: block;
        opacity: 1;
        margin-bottom: 4px;
    }

.onsite-note {
    margin: 0;
    font-size: 15px;
    opacity: .75;
}

@media (max-width: 820px) {
    .onsite-list {
        grid-template-columns: 1fr;
    }

        .onsite-list li + li {
            padding-left: 0;
            border-left: 0;
            border-top: 1px solid color-mix(in srgb, var(--paper) 25%, transparent);
        }

        .onsite-list li {
            padding-right: 0;
            padding-bottom: 14px;
        }

    .onsite-head {
        flex-direction: column;
        gap: 14px;
    }
}

.hp {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.btn[disabled] {
    opacity: .65;
    cursor: progress;
    transform: none;
}

footer {
    border-top: 1px solid var(--rule);
    padding-block: 28px;
    font-size: 14px;
    color: var(--muted);
}

    footer .wrap {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 12px;
    }