:root {
    --blue-900: #0f3360;
    --blue-800: #1a4f8b;
    --blue-600: #2d7fd3;
    --blue-500: #3f92e0;
    --blue-100: #e7f0fa;
    --blue-050: #f2f7fc;

    --ink: #1b2430;
    --ink-soft: #4f4f5b;
    --ink-mute: #6b7684;
    --green: #1f7a4d;

    --paper: #ffffff;
    --wash: #f7f9fc;
    --border: #dde5ef;
    --border-strong: #c4d2e3;

    --measure: 72ch;
    --radius: 4px;

    --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    color: var(--blue-900);
    font-weight: 650;
    letter-spacing: -0.015em;
    line-height: 1.2;
    margin: 0 0 0.6em;
}

h1 {
    font-size: clamp(2.1rem, 5vw, 3.35rem);
    letter-spacing: -0.03em;
    line-height: 1.08;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    letter-spacing: -0.02em;
}

h3 {
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

p {
    margin: 0 0 1.1em;
}

a {
    color: var(--blue-600);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    color: var(--blue-800);
}

:focus-visible {
    outline: 2px solid var(--blue-600);
    outline-offset: 2px;
}

.wrap {
    width: min(100% - 3rem, 1140px);
    margin-inline: auto;
}

.narrow {
    width: min(100% - 3rem, 860px);
    margin-inline: auto;
}

.eyebrow {
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue-600);
    margin-bottom: 1.4rem;
}

.lede {
    font-size: clamp(1.02rem, 1.6vw, 1.2rem);
    color: var(--ink-soft);
    max-width: var(--measure);
}

.btn {
    display: inline-block;
    background: var(--blue-800);
    color: #fff;
    font: inherit;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.75em 1.5em;
    border: 1px solid var(--blue-800);
    border-radius: var(--radius);
    text-decoration: none;
    cursor: pointer;
    transition: background 150ms ease, border-color 150ms ease;
}

.btn:hover {
    background: var(--blue-900);
    border-color: var(--blue-900);
    color: #fff;
}

.btn-ghost {
    background: transparent;
    color: var(--blue-800);
    border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
    background: var(--blue-050);
    color: var(--blue-800);
    border-color: var(--blue-600);
}

.btn-ghost:hover {
    color: var(--blue-800);
}

.site-header {
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.96);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 74px;
    padding-block: 0.75rem;
}

.wordmark {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
    font-weight: 700;
    font-size: 1.12rem;
    color: var(--blue-900);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.wordmark span {
    font-weight: 500;
    color: var(--ink-mute);
    font-size: 0.9rem;
}

.header-cta {
    font-size: 0.94rem;
    padding: 0.55em 1.1em;
}

/* Hero */
.hero {
    padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
    background:
        linear-gradient(180deg, var(--wash) 0%, var(--paper) 100%);
    border-bottom: 1px solid var(--border);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: center;
}

.hero h1 {
    max-width: 14ch;
}

.hero .lede {
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    align-items: center;
}

.hero-note {
    font-size: 0.9rem;
    color: var(--ink-mute);
    margin-top: 1.4rem;
    margin-bottom: 0;
}

/* Mock source document */
.doc-frame {
    background: #fff;
    border: 1px solid var(--border-strong);
    box-shadow: 0 18px 40px -30px rgba(15, 51, 96, 0.55);
    font-size: 0.72rem;
    line-height: 1.45;
    color: var(--ink);
}

.doc-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.6rem 0.85rem;
    background: var(--blue-050);
    border-bottom: 1px solid var(--border-strong);
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.02em;
    color: var(--ink-soft);
}

.doc-title {
    padding: 0.85rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.doc-title strong {
    display: block;
    font-size: 0.85rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--blue-900);
}

.doc-title em {
    font-style: normal;
    color: var(--ink-mute);
    font-size: 0.66rem;
    font-family: var(--mono);
}

.doc-table {
    width: 100%;
    border-collapse: collapse;
}

.doc-table th,
.doc-table td {
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    padding: 0.5rem 0.7rem;
    text-align: left;
    vertical-align: top;
}

.doc-table th:last-child,
.doc-table td:last-child {
    border-right: none;
}

.doc-table thead th {
    background: #fff;
    font-size: 0.64rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 650;
}

.doc-table tbody th {
    font-weight: 500;
    font-size: 0.72rem;
    color: var(--ink);
    width: 44%;
}

.doc-table .fill {
    color: var(--ink-mute);
    font-family: var(--mono);
    font-size: 0.68rem;
}

.doc-note {
    padding: 0.6rem 0.85rem;
    background: var(--wash);
    border-top: 1px solid var(--border-strong);
    font-size: 0.66rem;
    color: var(--ink-soft);
}

.doc-note b {
    color: var(--blue-800);
}

.doc-foot {
    display: flex;
    justify-content: space-between;
    padding: 0.45rem 0.85rem;
    font-family: var(--mono);
    font-size: 0.6rem;
    color: var(--ink-mute);
    background: #fff;
    border-top: 1px solid var(--border);
}

.stamp {
    display: inline-block;
    margin-top: 1rem;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-mute);
    border: 1px dashed var(--border-strong);
    padding: 0.3rem 0.6rem;
}

/* Sections */
section {
    padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.section-wash {
    background: var(--wash);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-intro {
    max-width: var(--measure);
    margin-bottom: 3rem;
}

.section-intro p:last-child {
    margin-bottom: 0;
}

/* Failure modes */
.failures {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: 1.5rem;
}

.failure {
    background: #fff;
    border: 1px solid var(--border);
    border-left: 3px solid var(--blue-600);
    padding: 1.5rem 1.4rem;
}

.failure .num {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--blue-600);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 0.7rem;
}

.failure h3 {
    margin-bottom: 0.5rem;
}

.failure p {
    font-size: 0.94rem;
    color: var(--ink-soft);
    margin: 0;
}

/* Deliverable + crosswalk */
.deliverables {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.deliverable-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.deliverable-list li {
    padding: 0.7rem 0 0.7rem 1.85rem;
    border-bottom: 1px solid var(--border);
    position: relative;
    font-size: 0.97rem;
}

.deliverable-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.05rem;
    width: 10px;
    height: 10px;
    background: var(--blue-600);
}

.crosswalk {
    background: #fff;
    border: 1px solid var(--border-strong);
    overflow-x: auto;
}

.crosswalk-title {
    padding: 0.85rem 1rem;
    background: var(--blue-900);
    color: #fff;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 650;
}

.crosswalk table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    min-width: 520px;
}

.crosswalk th,
.crosswalk td {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.crosswalk thead th {
    background: var(--wash);
    color: var(--ink-mute);
    font-size: 0.66rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    font-weight: 650;
    white-space: nowrap;
}

.crosswalk tbody th {
    font-weight: 600;
    color: var(--blue-900);
    background: var(--blue-050);
    white-space: nowrap;
}

.crosswalk td code {
    font-family: var(--mono);
    font-size: 0.74rem;
    background: var(--wash);
    padding: 0.1em 0.35em;
    border-radius: 3px;
    color: var(--blue-800);
}

.crosswalk-caption {
    font-size: 0.85rem;
    color: var(--ink-mute);
    padding: 0.75rem 1rem;
    background: var(--wash);
    border-top: 1px solid var(--border);
    margin: 0;
}

/* Checklist */
.checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem 3rem;
}

.check-group h3 {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    padding-bottom: 0.7rem;
    border-bottom: 2px solid var(--border-strong);
    margin-bottom: 1rem;
}

.check-group h3 span {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--blue-600);
    font-weight: 650;
}

.check-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.check-group li {
    position: relative;
    padding: 0.45rem 0 0.45rem 1.75rem;
    font-size: 0.94rem;
    color: var(--ink-soft);
    border-bottom: 1px solid var(--border);
}

.check-group li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72rem;
    width: 13px;
    height: 7px;
    border-left: 2.5px solid var(--green);
    border-bottom: 2.5px solid var(--green);
    transform: rotate(-45deg);
}

/* Cart */
.cart {
    background: #fff;
    border: 1px solid var(--border-strong);
    padding: clamp(1.25rem, 3vw, 2rem);
}

.cart-rows {
    display: flex;
    flex-direction: column;
}

.cart-row {
    display: grid;
    grid-template-columns: 22px 1fr auto;
    gap: 1rem;
    align-items: start;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}

.cart-row:hover {
    background: var(--wash);
}

.cart-row input[type="checkbox"] {
    margin-top: 0.25rem;
}

.cart-label b {
    display: block;
    color: var(--blue-900);
    font-weight: 600;
    font-size: 1rem;
}

.cart-label small {
    display: block;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-top: 0.2rem;
}

.cart-price {
    font-variant-numeric: tabular-nums;
    font-weight: 650;
    color: var(--blue-900);
    font-size: 1.05rem;
    white-space: nowrap;
}

.cart-sub {
    background: var(--wash);
    padding: 0 1rem;
    border-left: 2px solid var(--blue-100);
    margin-left: 0.4rem;
}

.cart-row-best .cart-label b::after {
    content: "Best value";
    display: inline-block;
    margin-left: 0.6rem;
    font-size: 0.68rem;
    font-weight: 650;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: var(--blue-600);
    padding: 0.15rem 0.45rem;
    border-radius: 2px;
    vertical-align: middle;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    padding-top: 1.25rem;
}

.cart-total-label {
    font-size: 0.76rem;
    font-weight: 650;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-mute);
}

.cart-total-value {
    font-size: 2rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    color: var(--blue-900);
    font-variant-numeric: tabular-nums;
}

/* Samples */
.samples {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
}

.sample-points {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.sample-points li {
    position: relative;
    padding: 0.4rem 0 0.4rem 1.6rem;
    font-size: 0.9rem;
    color: var(--ink-soft);
    border-bottom: 1px solid var(--border);
}

.sample-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.68rem;
    width: 12px;
    height: 6px;
    border-left: 2.5px solid var(--green);
    border-bottom: 2.5px solid var(--green);
    transform: rotate(-45deg);
}

.pricing-notes {
    margin-top: 1.75rem;
    font-size: 0.88rem;
    color: var(--ink-mute);
    max-width: var(--measure);
    padding: 1rem 1.25rem;
    background: var(--wash);
    border-left: 3px solid var(--border-strong);
}

/* Intake form */
.intake-grid {
    display: grid;
    grid-template-columns: 1fr 1.55fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.intake-aside {
    position: sticky;
    top: 100px;
}

.intake-aside ul {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}

.intake-aside li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
    color: var(--ink-soft);
}

.intake-aside li b {
    display: block;
    color: var(--blue-900);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-bottom: 0.15rem;
}

form {
    background: #fff;
    border: 1px solid var(--border-strong);
    padding: clamp(1.5rem, 3vw, 2.5rem);
}

.field {
    margin-bottom: 1.35rem;
}

fieldset {
    border: 1px solid var(--border);
    padding: 1.25rem;
    margin: 0 0 1.35rem;
    min-width: 0;
}

legend {
    font-size: 0.76rem;
    font-weight: 650;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--blue-600);
    padding: 0 0.55rem;
}

.row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.4rem;
}

label .opt {
    font-weight: 400;
    color: var(--ink-mute);
    font-size: 0.82rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="file"],
select,
textarea {
    width: 100%;
    font: inherit;
    font-size: 0.95rem;
    padding: 0.6rem 0.7rem;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
}

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

input[type="file"] {
    padding: 0.5rem;
    font-size: 0.88rem;
    background: var(--wash);
}

input::placeholder,
textarea::placeholder {
    color: #98a3b1;
}

.help {
    font-size: 0.82rem;
    color: var(--ink-mute);
    margin-top: 0.35rem;
}

.check-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 0.15rem 1rem;
}

.check-grid label {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 400;
    font-size: 0.9rem;
    padding: 0.28rem 0;
    cursor: pointer;
}

input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--blue-800);
    flex: none;
    cursor: pointer;
}

.form-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.form-foot .help {
    margin: 0;
    max-width: 34ch;
}

/* Radio choice row */
.radio-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1.5rem;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 400;
    font-size: 0.9rem;
    margin: 0;
    padding: 0.35rem 0;
    cursor: pointer;
    color: var(--ink-soft);
}

input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--blue-800);
    flex: none;
    cursor: pointer;
    margin: 0;
}

/* Next-step callout */
.next-step {
    margin-top: 0.4rem;
    padding: 1.1rem 1.25rem;
    background: var(--blue-050);
    border-left: 3px solid var(--blue-600);
}

.next-step p {
    margin: 0 0 0.5rem;
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.6;
}

.next-step p:first-child {
    font-size: 0.76rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--blue-800);
    font-weight: 650;
    margin-bottom: 0.6rem;
}

.next-step p:last-child {
    margin-bottom: 0;
}

/* Teardown band */
.teardown {
    background: var(--blue-900);
    color: #dbe7f5;
    padding: clamp(2.75rem, 5vw, 4rem) 0;
}

.teardown .wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: space-between;
}

.teardown h2 {
    color: #fff;
    margin-bottom: 0.5rem;
    max-width: 20ch;
}

.teardown p {
    color: #a9c2de;
    margin: 0;
    max-width: 56ch;
}

.teardown .btn {
    background: #fff;
    color: var(--blue-900);
    border-color: #fff;
    white-space: nowrap;
}

.teardown .btn:hover {
    background: var(--blue-100);
    color: var(--blue-900);
    border-color: var(--blue-100);
}

/* FAQ */
.faq {
    border-top: 1px solid var(--border);
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.75rem 0;
    display: grid;
    grid-template-columns: minmax(200px, 0.7fr) 1.3fr;
    gap: 1.5rem 3rem;
}

.faq-item h3 {
    margin: 0;
    color: var(--blue-900);
}

.faq-item p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.97rem;
}

.faq-item p:last-child {
    margin-bottom: 0;
}

/* Footer */
.site-footer {
    background: var(--wash);
    border-top: 1px solid var(--border);
    padding: 3rem 0 2.5rem;
    font-size: 0.92rem;
    color: var(--ink-soft);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.footer-grid h4 {
    font-size: 0.76rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--blue-800);
    margin: 0 0 0.9rem;
    font-weight: 650;
}

.footer-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-grid li {
    padding: 0.3rem 0;
}

.footer-grid a {
    color: var(--ink-soft);
    text-decoration: none;
}

.footer-grid a:hover {
    color: var(--blue-800);
    text-decoration: underline;
}

.footer-bottom {
    padding-top: 1.75rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    font-size: 0.84rem;
    color: var(--ink-mute);
}

.footer-bottom p {
    margin: 0;
    max-width: 78ch;
}

@media (max-width: 900px) {
    .hero-grid,
    .deliverables,
    .intake-grid,
    .samples,
    .faq-item {
        grid-template-columns: 1fr;
    }

    .intake-aside {
        position: static;
    }

    .site-header .wrap {
        min-height: 64px;
    }

    .wordmark span {
        display: none;
    }
}

@media (max-width: 560px) {
    body {
        font-size: 16px;
    }

    .wrap,
    .narrow {
        width: calc(100% - 2rem);
    }

    .hero-actions .btn,
    .teardown .btn {
        width: 100%;
        text-align: center;
    }

    .cart-row {
        grid-template-columns: 22px 1fr;
    }

    .cart-price {
        grid-column: 2;
        margin-top: 0.3rem;
    }

    .cart-sub {
        padding: 0 0.6rem;
        margin-left: 0;
    }

    .cart-row-best .cart-label b::after {
        display: block;
        margin-left: 0;
        margin-top: 0.35rem;
        width: fit-content;
    }
}