:root {
    --diagnostic-navy: #002e54;
    --diagnostic-navy-dark: #001a33;
    --diagnostic-blue: #018afd;
    --diagnostic-teal: #018afd;
    --diagnostic-green: #16a34a;
    --diagnostic-amber: #d97706;
    --diagnostic-red: #dc2626;
    --diagnostic-ink: #1a1d21;
    --diagnostic-muted: #5f6672;
    --diagnostic-line: #c9cdd2;
    --diagnostic-soft: #f8f9fa;
    --diagnostic-white: #ffffff;
    --diagnostic-font: Calibri, "Segoe UI", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

.diagnostic-app-page {
    min-height: 100vh;
    margin: 0;
    background: var(--diagnostic-soft);
    color: var(--diagnostic-ink);
    font-family: var(--diagnostic-font);
    letter-spacing: 0;
}

.diagnostic-app-page a {
    color: var(--diagnostic-blue);
}

.diagnostic-app-header {
    border-bottom: 1px solid var(--diagnostic-line);
    background: var(--diagnostic-white);
}

.diagnostic-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(1180px, calc(100% - 40px));
    min-height: 76px;
    margin: 0 auto;
}

.diagnostic-wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--diagnostic-navy);
    text-decoration: none;
}

.diagnostic-wordmark img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.diagnostic-wordmark span {
    display: grid;
}

.diagnostic-wordmark strong {
    font-family: var(--diagnostic-font);
    font-size: 1.17rem;
    line-height: 1.05;
}

.diagnostic-wordmark small {
    color: var(--diagnostic-muted);
    font-size: 0.68rem;
    line-height: 1.35;
}

.diagnostic-exit-link {
    color: var(--diagnostic-muted) !important;
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
}

.diagnostic-exit-link:hover,
.diagnostic-exit-link:focus-visible {
    color: var(--diagnostic-navy) !important;
    text-decoration: underline;
}

.diagnostic-app-main {
    padding: 36px 20px 56px;
}

.diagnostic-app-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 820px);
    gap: 24px;
    justify-content: center;
    align-items: start;
    width: min(1124px, 100%);
    margin: 0 auto;
}

.diagnostic-progress-panel {
    position: sticky;
    top: 24px;
    padding: 1.45rem;
    border: 1px solid var(--diagnostic-line);
    border-radius: 8px;
    background: var(--diagnostic-navy);
    color: var(--diagnostic-white);
}

.diagnostic-progress-label,
.diagnostic-kicker {
    margin: 0 0 0.55rem;
    color: #64c6bd;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.diagnostic-progress-panel h1 {
    margin: 0;
    color: var(--diagnostic-white);
    font-family: var(--diagnostic-font);
    font-size: 1.55rem;
    line-height: 1.15;
}

.diagnostic-progress-copy {
    margin: 0.65rem 0 1.4rem;
    color: #d9e5ef;
    font-size: 0.86rem;
    line-height: 1.55;
}

.diagnostic-progress-list {
    display: grid;
    gap: 0.2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.diagnostic-progress-list li {
    display: grid;
    grid-template-columns: 30px 1fr;
    gap: 0.65rem;
    align-items: center;
    min-height: 44px;
    padding: 0.32rem 0.45rem;
    border-left: 2px solid transparent;
    color: #aebfce;
    font-size: 0.83rem;
    font-weight: 600;
}

.diagnostic-progress-list li span {
    display: inline-grid;
    width: 27px;
    height: 27px;
    place-items: center;
    border: 1px solid #668097;
    border-radius: 50%;
    color: #d9e5ef;
    font-size: 0.72rem;
}

.diagnostic-progress-list li.is-active {
    border-left-color: #64c6bd;
    color: var(--diagnostic-white);
}

.diagnostic-progress-list li.is-active span {
    border-color: #64c6bd;
    background: #64c6bd;
    color: var(--diagnostic-navy-dark);
}

.diagnostic-progress-list li.is-complete {
    color: #d9e5ef;
}

.diagnostic-progress-list li.is-complete span {
    border-color: #7eb19a;
    background: var(--diagnostic-green);
    color: var(--diagnostic-white);
}

.diagnostic-save-status {
    display: flex;
    gap: 0.55rem;
    align-items: center;
    margin-top: 1.35rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    color: #c9d7e3;
    font-size: 0.74rem;
}

.diagnostic-save-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #64c6bd;
}

.diagnostic-save-status.is-saving .diagnostic-save-dot {
    background: #f6ad55;
}

.diagnostic-workspace {
    position: relative;
    min-height: 620px;
    padding: clamp(1.45rem, 4vw, 2.8rem);
    border: 1px solid var(--diagnostic-line);
    border-radius: 8px;
    background: var(--diagnostic-white);
    box-shadow: 0 10px 30px rgba(0, 46, 84, 0.07);
}

.diagnostic-mobile-progress {
    display: none;
}

.diagnostic-timer {
    position: sticky;
    z-index: 4;
    top: 12px;
    float: right;
    display: inline-flex;
    align-items: baseline;
    gap: 0.55rem;
    margin: -0.35rem 0 1rem 1rem;
    padding: 0.52rem 0.72rem;
    border: 1px solid #b8c8d7;
    border-radius: 6px;
    background: var(--diagnostic-white);
    color: var(--diagnostic-muted);
    font-size: 0.72rem;
    box-shadow: 0 4px 12px rgba(0, 46, 84, 0.08);
}

.diagnostic-timer[hidden] {
    display: none;
}

.diagnostic-timer strong {
    color: var(--diagnostic-navy);
    font-variant-numeric: tabular-nums;
    font-size: 1rem;
}

.diagnostic-timer.is-warning {
    border-color: #f5c26b;
    background: #fff8eb;
}

.diagnostic-timer.is-critical {
    border-color: #f1a29b;
    background: #fff1f0;
}

.diagnostic-timer.is-critical strong {
    color: var(--diagnostic-red);
}

.diagnostic-step-panel[hidden] {
    display: none;
}

.diagnostic-step-panel h2 {
    max-width: 680px;
    margin: 0;
    color: var(--diagnostic-navy);
    font-family: var(--diagnostic-font);
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    line-height: 1.16;
}

.diagnostic-lead {
    max-width: 700px;
    margin: 0.8rem 0 1.8rem;
    color: var(--diagnostic-muted);
    font-size: 1rem;
    line-height: 1.65;
}

.diagnostic-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin: 1.7rem 0;
    border-block: 1px solid var(--diagnostic-line);
}

.diagnostic-facts div {
    min-width: 0;
    padding: 1rem 0.9rem;
}

.diagnostic-facts div + div {
    border-left: 1px solid var(--diagnostic-line);
}

.diagnostic-facts strong,
.diagnostic-facts span {
    display: block;
}

.diagnostic-facts strong {
    color: var(--diagnostic-navy);
    font-size: 1.05rem;
}

.diagnostic-facts span {
    margin-top: 0.2rem;
    color: var(--diagnostic-muted);
    font-size: 0.76rem;
    line-height: 1.45;
}

.diagnostic-instructions {
    padding: 1.15rem 1.25rem;
    border-left: 4px solid var(--diagnostic-teal);
    background: #eff9f7;
}

.diagnostic-instructions h3 {
    margin: 0 0 0.55rem;
    color: var(--diagnostic-navy);
    font-size: 0.95rem;
}

.diagnostic-instructions ul {
    display: grid;
    gap: 0.42rem;
    margin: 0;
    padding-left: 1.2rem;
    color: #334155;
    font-size: 0.87rem;
    line-height: 1.55;
}

.diagnostic-note {
    margin: 1rem 0 0;
    color: var(--diagnostic-muted);
    font-size: 0.77rem;
    line-height: 1.55;
}

.diagnostic-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.25rem;
}

.diagnostic-field {
    display: grid;
    align-content: start;
    gap: 0.45rem;
    min-width: 0;
}

.diagnostic-field-wide {
    grid-column: 1 / -1;
}

.diagnostic-field > span,
.diagnostic-choice-field legend,
.diagnostic-writing-field > span {
    color: var(--diagnostic-ink);
    font-size: 0.86rem;
    font-weight: 700;
    line-height: 1.5;
}

.diagnostic-field em,
.diagnostic-choice-field em,
.diagnostic-writing-field em,
.diagnostic-check-row em {
    color: var(--diagnostic-red);
    font-style: normal;
}

.diagnostic-field input[type="text"],
.diagnostic-field input[type="email"],
.diagnostic-field input[type="tel"],
.diagnostic-field select,
.diagnostic-field textarea,
.diagnostic-writing-field textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid #b8c5d1;
    border-radius: 5px;
    background: var(--diagnostic-white);
    color: var(--diagnostic-ink);
    font: inherit;
    font-size: 0.92rem;
    line-height: 1.55;
}

.diagnostic-field input[type="text"],
.diagnostic-field input[type="email"],
.diagnostic-field input[type="tel"],
.diagnostic-field select {
    padding: 0.66rem 0.75rem;
}

.diagnostic-field textarea,
.diagnostic-writing-field textarea {
    min-height: 88px;
    padding: 0.78rem;
    resize: vertical;
}

.diagnostic-field input:focus,
.diagnostic-field select:focus,
.diagnostic-field textarea:focus,
.diagnostic-writing-field textarea:focus {
    border-color: var(--diagnostic-blue);
    outline: 3px solid rgba(20, 121, 209, 0.16);
}

.diagnostic-field small,
.diagnostic-writing-field small {
    color: var(--diagnostic-muted);
    font-size: 0.7rem;
    line-height: 1.45;
}

.diagnostic-field-error {
    display: none;
    color: var(--diagnostic-red) !important;
    font-weight: 600;
}

.diagnostic-field-error.is-visible {
    display: block;
}

.diagnostic-field.has-error input,
.diagnostic-field.has-error select,
.diagnostic-field.has-error textarea,
.diagnostic-writing-field.has-error textarea,
.diagnostic-choice-field.has-error {
    border-color: var(--diagnostic-red);
}

.diagnostic-choice-field {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.diagnostic-choice-field legend {
    width: 100%;
    margin-bottom: 0.45rem;
}

.diagnostic-choice-field label {
    position: relative;
}

.diagnostic-choice-field input {
    position: absolute;
    opacity: 0;
}

.diagnostic-choice-field label span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 76px;
    min-height: 40px;
    padding: 0.55rem 0.72rem;
    border: 1px solid #b8c5d1;
    border-radius: 5px;
    color: #334155;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 700;
}

.diagnostic-choice-field input:checked + span {
    border-color: var(--diagnostic-blue);
    background: #edf6fd;
    color: var(--diagnostic-navy);
}

.diagnostic-choice-field input:focus-visible + span {
    outline: 3px solid rgba(20, 121, 209, 0.2);
}

.diagnostic-divider {
    height: 1px;
    margin: 1.7rem 0;
    border: 0;
    background: var(--diagnostic-line);
}

.diagnostic-check-row {
    display: grid;
    grid-template-columns: 20px 1fr;
    gap: 0.7rem;
    align-items: start;
    margin-top: 1.4rem;
    color: #334155;
    cursor: pointer;
    font-size: 0.8rem;
    line-height: 1.55;
}

.diagnostic-check-row input {
    width: 18px;
    height: 18px;
    margin: 0.15rem 0 0;
    accent-color: var(--diagnostic-blue);
}

.diagnostic-check-error {
    margin: 0.4rem 0 0 1.9rem;
}

.diagnostic-question {
    margin: 0;
    padding: 0;
    border: 0;
}

.diagnostic-question + .diagnostic-question {
    margin-top: 2.5rem;
    padding-top: 2.4rem;
    border-top: 1px solid var(--diagnostic-line);
}

.diagnostic-question legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    width: 100%;
    margin-bottom: 0.8rem;
    color: var(--diagnostic-navy);
    font-family: var(--diagnostic-font);
    font-size: 1.35rem;
    font-weight: 700;
}

.diagnostic-domain {
    display: inline-block;
    padding: 0.36rem 0.5rem;
    border-radius: 4px;
    background: #e7f5f2;
    color: var(--diagnostic-teal);
    font-family: var(--diagnostic-font);
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.diagnostic-question p,
.diagnostic-question li {
    color: #334155;
    font-size: 0.91rem;
    line-height: 1.65;
}

.diagnostic-question ul {
    padding-left: 1.2rem;
}

.gear-diagram {
    position: relative;
    display: grid;
    grid-template-columns: 0.85fr 1.65fr 1.05fr;
    gap: 0;
    align-items: center;
    min-height: 310px;
    margin: 1.15rem auto;
    padding: 1.4rem 1.5rem 1.4rem 4.8rem;
    overflow: hidden;
    border: 1px solid var(--diagnostic-line);
    background-color: #f7f9fb;
    background-image: linear-gradient(#e8edf2 1px, transparent 1px), linear-gradient(90deg, #e8edf2 1px, transparent 1px);
    background-size: 20px 20px;
}

.gear {
    position: relative;
    z-index: 1;
    display: grid;
    place-content: start center;
    justify-self: center;
    border: 9px dashed #174f80;
    border-radius: 50%;
    background: #2f75aa;
    color: var(--diagnostic-white);
    padding-top: 18%;
    text-align: center;
    box-shadow: inset 0 0 0 5px rgba(255, 255, 255, 0.22), 0 5px 12px rgba(0, 46, 84, 0.16);
}

.gear::after {
    content: "";
    position: absolute;
    top: 68%;
    left: 50%;
    width: 25%;
    aspect-ratio: 1;
    border: 4px solid rgba(0, 46, 84, 0.7);
    border-radius: 50%;
    background: #f7f9fb;
    transform: translate(-50%, -50%);
}

.gear-a {
    width: 112px;
    height: 112px;
    transform: translateX(24px);
}

.gear-b {
    width: 238px;
    height: 238px;
    margin-inline: -8px;
    border-color: #b45309;
    background: #e47a1f;
}

.gear-c {
    width: 148px;
    height: 148px;
    transform: translateX(-24px);
}

.gear strong,
.gear span,
.gear small {
    position: relative;
    z-index: 2;
    display: block;
    max-width: 85px;
    line-height: 1.2;
}

.gear strong {
    font-size: 0.82rem;
}

.gear span,
.gear small {
    font-size: 0.64rem;
}

.gear-b strong,
.gear-b span,
.gear-b small {
    max-width: 120px;
}

.gear-speed {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 0.7rem;
    display: grid;
    gap: 0.15rem;
    color: var(--diagnostic-navy);
    font-size: 0.66rem;
    transform: translateY(-50%);
}

.gear-speed::after {
    content: "";
    width: 40px;
    height: 40px;
    margin: 0.2rem auto 0;
    border: 3px solid var(--diagnostic-navy);
    border-right-color: transparent;
    border-radius: 50%;
}

.diagnostic-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    margin-top: 1rem;
}

.diagnostic-options-long {
    grid-template-columns: 1fr;
}

.diagnostic-options label {
    position: relative;
    min-width: 0;
}

.diagnostic-options input {
    position: absolute;
    opacity: 0;
}

.diagnostic-options span {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 0.5rem;
    align-items: start;
    min-height: 100%;
    padding: 0.8rem;
    border: 1px solid #b8c5d1;
    border-radius: 6px;
    color: #334155;
    cursor: pointer;
    font-size: 0.82rem;
    line-height: 1.5;
}

.diagnostic-options b {
    display: inline-grid;
    width: 26px;
    height: 26px;
    place-items: center;
    border: 1px solid #a8b6c3;
    border-radius: 50%;
    color: var(--diagnostic-navy);
    font-size: 0.72rem;
}

.diagnostic-options input:checked + span {
    border-color: var(--diagnostic-blue);
    background: #edf6fd;
    box-shadow: inset 3px 0 0 var(--diagnostic-blue);
}

.diagnostic-options input:checked + span b {
    border-color: var(--diagnostic-blue);
    background: var(--diagnostic-blue);
    color: var(--diagnostic-white);
}

.diagnostic-options input:focus-visible + span {
    outline: 3px solid rgba(20, 121, 209, 0.2);
}

.pipeline-diagram {
    position: relative;
    min-height: 210px;
    margin: 1.25rem 0;
    overflow: hidden;
    border: 1px solid #b9c7d4;
    background: #d9f0f7;
}

.pipeline-bank {
    position: absolute;
    left: 0;
    display: flex;
    align-items: center;
    width: 100%;
    height: 54px;
    padding: 0 1rem;
    background: #dce9ce;
    color: #3c5c2c;
    font-size: 0.72rem;
}

.pipeline-bank-top {
    top: 0;
}

.pipeline-bank-bottom {
    bottom: 0;
}

.pipeline-bank span {
    position: absolute;
    display: inline-grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border-radius: 50%;
    background: var(--diagnostic-navy);
    color: var(--diagnostic-white);
    font-weight: 800;
}

.pipeline-bank-top span {
    left: 12%;
    bottom: -16px;
}

.pipeline-bank-bottom span {
    right: 12%;
    top: -16px;
}

.pipeline-bank-bottom b {
    margin-left: auto;
}

.pipeline-water {
    position: absolute;
    inset: 54px 0;
    display: grid;
    place-items: center;
    color: #236c86;
    font-size: 0.72rem;
    font-weight: 700;
}

.pipeline-water::after {
    content: "";
    position: absolute;
    left: 12%;
    top: 0;
    width: 77%;
    border-top: 2px dashed rgba(0, 46, 84, 0.58);
    transform: rotate(10.8deg);
    transform-origin: left center;
}

.pipeline-distance {
    position: absolute;
    right: 28%;
    bottom: 67px;
    padding: 0.2rem 0.35rem;
    background: rgba(255, 255, 255, 0.82);
    color: var(--diagnostic-navy);
    font-size: 0.68rem;
    font-weight: 700;
}

.diagnostic-passage {
    margin: 1.2rem 0 1.8rem;
    padding: 1.15rem 1.25rem;
    border-left: 4px solid var(--diagnostic-amber);
    background: #fff8eb;
}

.diagnostic-passage p {
    margin: 0;
    color: #3f4652;
    font-family: var(--diagnostic-font);
    font-size: 0.96rem;
    line-height: 1.72;
}

.diagnostic-passage p + p {
    margin-top: 0.8rem;
}

.diagnostic-writing-field {
    display: grid;
    gap: 0.5rem;
    margin-top: 1.55rem;
}

.diagnostic-writing-field textarea {
    min-height: 180px;
}

.diagnostic-review-list {
    display: grid;
    border-top: 1px solid var(--diagnostic-line);
}

.diagnostic-review-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--diagnostic-line);
}

.diagnostic-review-item strong,
.diagnostic-review-item span {
    display: block;
}

.diagnostic-review-item strong {
    color: var(--diagnostic-navy);
    font-size: 0.85rem;
}

.diagnostic-review-item span {
    margin-top: 0.18rem;
    color: var(--diagnostic-muted);
    font-size: 0.76rem;
}

.diagnostic-review-item button {
    padding: 0.35rem;
    border: 0;
    background: transparent;
    color: var(--diagnostic-blue);
    cursor: pointer;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 700;
}

.diagnostic-reflection {
    display: grid;
    gap: 1.3rem;
    margin: 0;
    padding: 0;
    border: 0;
}

.diagnostic-reflection legend {
    margin-bottom: 1rem;
    color: var(--diagnostic-navy);
    font-family: var(--diagnostic-font);
    font-size: 1.25rem;
    font-weight: 700;
}

.diagnostic-field input[type="range"] {
    width: 100%;
    accent-color: var(--diagnostic-blue);
}

.diagnostic-range-output {
    display: grid !important;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    color: var(--diagnostic-muted) !important;
    font-size: 0.68rem !important;
    font-weight: 500 !important;
}

.diagnostic-range-output output {
    padding: 0.3rem 0.45rem;
    border-radius: 4px;
    background: var(--diagnostic-navy);
    color: var(--diagnostic-white);
    font-size: 0.76rem;
    font-weight: 800;
}

.diagnostic-range-output b:last-child {
    text-align: right;
}

.diagnostic-submit-error {
    margin-top: 1rem;
    padding: 0.8rem 0.9rem;
    border-left: 4px solid var(--diagnostic-red);
    background: #fff1f0;
    color: #7a271a;
    font-size: 0.8rem;
    line-height: 1.5;
}

.diagnostic-actions-row {
    display: flex;
    justify-content: space-between;
    gap: 0.8rem;
    margin-top: 2rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--diagnostic-line);
}

.diagnostic-actions-end {
    justify-content: flex-end;
}

.diagnostic-actions-center {
    justify-content: center;
}

.diagnostic-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.68rem 1rem;
    border: 1px solid transparent;
    border-radius: 5px;
    cursor: pointer;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 800;
    line-height: 1.2;
    text-decoration: none;
}

.diagnostic-btn-primary {
    border-color: var(--diagnostic-blue);
    background: var(--diagnostic-blue);
    color: var(--diagnostic-white);
}

.diagnostic-btn-primary:hover,
.diagnostic-btn-primary:focus-visible {
    border-color: #0070d4;
    background: #0070d4;
}

.diagnostic-btn-secondary {
    border-color: #aebdca;
    background: var(--diagnostic-white);
    color: var(--diagnostic-navy);
}

.diagnostic-btn-secondary:hover,
.diagnostic-btn-secondary:focus-visible {
    border-color: var(--diagnostic-navy);
    background: var(--diagnostic-soft);
}

.diagnostic-btn:focus-visible {
    outline: 3px solid rgba(1, 138, 253, 0.24);
    outline-offset: 2px;
}

.diagnostic-btn:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.diagnostic-success {
    max-width: 650px;
    margin: 2rem auto;
    text-align: center;
}

.diagnostic-success-mark {
    display: inline-grid;
    width: 54px;
    height: 54px;
    margin-bottom: 1rem;
    place-items: center;
    border-radius: 50%;
    background: var(--diagnostic-green);
    color: var(--diagnostic-white);
    font-size: 1.45rem;
    font-weight: 800;
}

.diagnostic-success h2,
.diagnostic-success .diagnostic-lead {
    margin-inline: auto;
}

.diagnostic-submission-id {
    margin: 1.2rem 0;
    color: var(--diagnostic-muted);
    font-size: 0.78rem;
}

.diagnostic-honeypot {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
}

.diagnostic-app-footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    width: min(1124px, calc(100% - 40px));
    margin: 0 auto;
    padding: 0 0 2.4rem;
    color: #7a8795;
    font-size: 0.68rem;
    line-height: 1.5;
}

.diagnostic-app-footer p {
    max-width: 720px;
    margin: 0;
}

.diagnostic-app-footer a {
    flex: 0 0 auto;
}

@media (max-width: 900px) {
    .diagnostic-app-layout {
        grid-template-columns: 1fr;
    }

    .diagnostic-progress-panel {
        display: none;
    }

    .diagnostic-mobile-progress {
        display: grid;
        gap: 0.45rem;
        margin-bottom: 1.5rem;
        color: var(--diagnostic-muted);
        font-size: 0.72rem;
        font-weight: 700;
    }

    .diagnostic-mobile-track {
        display: block;
        height: 5px;
        overflow: hidden;
        background: #e2e8ef;
    }

    .diagnostic-mobile-track span {
        display: block;
        width: 20%;
        height: 100%;
        background: var(--diagnostic-teal);
        transition: width 180ms ease;
    }
}

@media (max-width: 640px) {
    .diagnostic-header-inner {
        width: min(100% - 28px, 1180px);
        min-height: 66px;
    }

    .diagnostic-wordmark img {
        width: 36px;
        height: 36px;
    }

    .diagnostic-wordmark strong {
        font-size: 1rem;
    }

    .diagnostic-exit-link {
        font-size: 0.74rem;
    }

    .diagnostic-app-main {
        padding: 18px 12px 36px;
    }

    .diagnostic-workspace {
        min-height: 560px;
        padding: 1.2rem;
    }

    .diagnostic-timer {
        position: static;
        float: none;
        justify-content: space-between;
        width: 100%;
        margin: 0 0 1.2rem;
    }

    .diagnostic-facts,
    .diagnostic-form-grid,
    .diagnostic-options {
        grid-template-columns: 1fr;
    }

    .gear-diagram {
        grid-template-columns: 0.8fr 1.5fr 1fr;
        min-height: 205px;
        padding: 1rem 0.4rem 1rem 2.75rem;
    }

    .gear-a {
        width: 68px;
        height: 68px;
        border-width: 6px;
        transform: translateX(10px);
    }

    .gear-b {
        width: 130px;
        height: 130px;
        border-width: 7px;
    }

    .gear-c {
        width: 84px;
        height: 84px;
        border-width: 6px;
        transform: translateX(-10px);
    }

    .gear strong {
        font-size: 0.62rem;
    }

    .gear span,
    .gear small {
        font-size: 0.5rem;
    }

    .gear-speed {
        left: 0.25rem;
        font-size: 0.52rem;
    }

    .gear-speed::after {
        width: 28px;
        height: 28px;
        border-width: 2px;
    }

    .diagnostic-facts div + div {
        border-top: 1px solid var(--diagnostic-line);
        border-left: 0;
    }

    .diagnostic-choice-field {
        grid-column: 1;
    }

    .diagnostic-actions-row {
        flex-direction: column-reverse;
    }

    .diagnostic-actions-row .diagnostic-btn {
        width: 100%;
    }

    .diagnostic-actions-end,
    .diagnostic-actions-center {
        flex-direction: column;
    }

    .diagnostic-app-footer {
        display: grid;
        width: calc(100% - 28px);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}