:root {
    --mu-ink: #20251f;
    --mu-muted: #667065;
    --mu-green: #334a35;
    --mu-green-dark: #243528;
    --mu-green-soft: #e8eee7;
    --mu-paper: #fbfaf5;
    --mu-paper-deep: #f2efe4;
    --mu-line: #d9d7ca;
    --mu-gold: #a47b39;
    --mu-danger: #8f302a;
    --mu-shadow: 0 18px 50px rgba(33, 43, 34, 0.12);
}

.mu-it-shell,
.mu-it-shell * {
    box-sizing: border-box;
}

.mu-it-shell {
    width: min(1460px, calc(100vw - 24px));
    margin: 0 0 64px 50%;
    transform: translateX(-50%);
    color: var(--mu-ink);
    font-family: "Roboto", "Segoe UI", sans-serif;
}

.mu-it-access-gate {
    display: grid;
    min-height: min(680px, 78vh);
    place-items: center;
    padding: clamp(28px, 6vw, 80px) 20px;
    border-radius: 22px;
    background:
        radial-gradient(circle at 82% 18%, rgba(208, 181, 119, 0.22), transparent 30%),
        linear-gradient(135deg, #263b2b 0%, #3d563f 58%, #1f3124 100%);
    box-shadow: var(--mu-shadow);
}

.mu-it-access-card {
    width: min(520px, 100%);
    padding: clamp(28px, 5vw, 48px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    background: rgba(251, 250, 245, 0.97);
    box-shadow: 0 24px 70px rgba(15, 26, 18, 0.28);
}

.mu-it-access-card .mu-it-eyebrow {
    color: var(--mu-gold);
}

.mu-it-access-card h2 {
    margin: 0 0 14px;
    color: var(--mu-green-dark);
    font: 700 clamp(2rem, 6vw, 3.2rem) / 1.05 "Playfair Display", Georgia, serif;
}

.mu-it-access-card > p:not(.mu-it-eyebrow) {
    color: var(--mu-muted);
    line-height: 1.6;
}

.mu-it-access-card form {
    margin-top: 24px;
}

.mu-it-access-card .mu-it-button {
    width: 100%;
}

.mu-it-access-note {
    margin: 18px 0 0;
    font-size: 0.82rem;
}

.mu-it-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(34px, 6vw, 76px);
    border-radius: 22px 22px 0 0;
    color: #fff;
    background:
        radial-gradient(circle at 88% 16%, rgba(208, 181, 119, 0.24), transparent 28%),
        linear-gradient(135deg, #263b2b 0%, #3d563f 58%, #1f3124 100%);
}

.mu-it-hero::after {
    content: "AI";
    position: absolute;
    right: 4%;
    bottom: -0.28em;
    color: rgba(255, 255, 255, 0.045);
    font: 800 clamp(130px, 22vw, 330px) / 1 Georgia, serif;
    pointer-events: none;
}

.mu-it-eyebrow {
    margin: 0 0 8px;
    color: #dfc58f;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.mu-it-hero h2 {
    position: relative;
    z-index: 1;
    margin: 0;
    color: #fff;
    font: 700 clamp(2.3rem, 5.8vw, 5.2rem) / 1.02 "Playfair Display", Georgia, serif;
    letter-spacing: -0.035em;
}

.mu-it-subtitle {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 18px 0 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(1rem, 2vw, 1.22rem);
}

.mu-it-notice {
    position: relative;
    z-index: 1;
    max-width: 940px;
    margin-top: 28px;
    padding: 15px 18px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.09);
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.55;
    backdrop-filter: blur(6px);
}

.mu-it-hero-actions,
.mu-it-form-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.mu-it-button,
.mu-it-shell button.mu-it-button,
.mu-it-shell a.mu-it-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 18px;
    border: 1px solid var(--mu-green);
    border-radius: 999px;
    background: var(--mu-green);
    color: #fff;
    font: 700 0.9rem/1.2 "Roboto", "Segoe UI", sans-serif;
    text-decoration: none;
    cursor: pointer;
    transition: transform 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.mu-it-button:hover,
.mu-it-button:focus-visible {
    transform: translateY(-1px);
    background: var(--mu-green-dark);
    color: #fff;
    box-shadow: 0 8px 22px rgba(31, 49, 36, 0.22);
}

.mu-it-button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.mu-it-shell .mu-it-button-secondary {
    border-color: #fff;
    background: #fff;
    color: var(--mu-green-dark);
}

.mu-it-shell .mu-it-button-secondary:hover,
.mu-it-shell .mu-it-button-secondary:focus-visible {
    background: var(--mu-paper-deep);
    color: var(--mu-green-dark);
}

.mu-it-shell .mu-it-button-quiet {
    border-color: rgba(255, 255, 255, 0.48);
    background: transparent;
    color: inherit;
}

.mu-it-modal .mu-it-button-quiet {
    border-color: var(--mu-line);
    color: var(--mu-ink);
}

.mu-it-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-right: 1px solid var(--mu-line);
    border-left: 1px solid var(--mu-line);
    background: var(--mu-paper-deep);
}

.mu-it-stats span {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    padding: 18px;
    color: var(--mu-muted);
    font-size: 0.9rem;
    text-align: center;
}

.mu-it-stats span + span {
    border-left: 1px solid var(--mu-line);
}

.mu-it-stats strong {
    color: var(--mu-green-dark);
    font: 700 1.45rem/1 Georgia, serif;
}

.mu-it-layout {
    display: grid;
    grid-template-columns: 310px minmax(0, 1fr);
    min-height: 720px;
    border: 1px solid var(--mu-line);
    border-radius: 0 0 22px 22px;
    background: var(--mu-paper);
    box-shadow: var(--mu-shadow);
}

.mu-it-sidebar {
    border-right: 1px solid var(--mu-line);
    background: #f4f2e9;
}

.mu-it-sidebar-sticky {
    position: sticky;
    top: 24px;
    max-height: calc(100vh - 48px);
    padding: 28px 18px 24px;
    overflow: hidden;
}

.mu-it-sidebar h3 {
    margin: 0 8px 14px;
    color: var(--mu-green-dark);
    font: 700 1.3rem/1.2 "Playfair Display", Georgia, serif;
}

.mu-it-search input,
.mu-it-chapter-tools input,
.mu-it-mobile-nav select,
.mu-it-field input,
.mu-it-field textarea {
    width: 100%;
    border: 1px solid var(--mu-line);
    border-radius: 10px;
    background: #fff;
    color: var(--mu-ink);
    font: inherit;
    outline: none;
}

.mu-it-search input,
.mu-it-chapter-tools input,
.mu-it-mobile-nav select,
.mu-it-field input {
    min-height: 42px;
    padding: 9px 12px;
}

.mu-it-search input:focus,
.mu-it-chapter-tools input:focus,
.mu-it-mobile-nav select:focus,
.mu-it-field input:focus,
.mu-it-field textarea:focus {
    border-color: var(--mu-green);
    box-shadow: 0 0 0 3px rgba(51, 74, 53, 0.13);
}

.mu-it-chapter-list {
    max-height: calc(100vh - 145px);
    margin: 14px 0 0;
    padding: 0 4px 16px 0;
    overflow: auto;
    list-style: none;
    scrollbar-width: thin;
    scrollbar-color: #aeb5ab transparent;
}

.mu-it-chapter-list li {
    margin: 0;
}

.mu-it-chapter-list button {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 9px;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--mu-muted);
    text-align: left;
    cursor: pointer;
}

.mu-it-chapter-list button:hover,
.mu-it-chapter-list button:focus-visible {
    background: rgba(51, 74, 53, 0.08);
    color: var(--mu-green-dark);
}

.mu-it-chapter-list button.is-active {
    background: var(--mu-green);
    color: #fff;
}

.mu-it-chapter-list span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 27px;
    height: 27px;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 0.73rem;
    font-weight: 700;
}

.mu-it-chapter-list em {
    align-self: center;
    overflow: hidden;
    font-size: 0.82rem;
    font-style: normal;
    font-weight: 600;
    line-height: 1.32;
    text-overflow: ellipsis;
}

.mu-it-reader {
    min-width: 0;
    padding: clamp(28px, 6vw, 78px);
    outline: none;
}

.mu-it-chapter-header {
    max-width: 880px;
    margin: 0 auto 42px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--mu-line);
    text-align: center;
}

.mu-it-chapter-header > p {
    margin: 0 0 8px;
    color: var(--mu-gold);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.mu-it-chapter-header h2 {
    margin: 0;
    color: var(--mu-green-dark);
    font: 700 clamp(1.8rem, 4vw, 3.2rem) / 1.1 "Playfair Display", Georgia, serif;
}

.mu-it-chapter-tools {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 22px;
    color: var(--mu-muted);
    font-size: 0.82rem;
}

.mu-it-chapter-tools label {
    width: min(100%, 330px);
}

.mu-it-paragraphs {
    max-width: 900px;
    margin: 0 auto;
}

.mu-it-paragraph {
    position: relative;
    margin: 0 0 6px;
    padding: 18px 96px 18px 48px;
    border: 1px solid transparent;
    border-radius: 12px;
    transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.mu-it-paragraph:hover,
.mu-it-paragraph:focus-within {
    border-color: var(--mu-line);
    background: #fff;
    box-shadow: 0 8px 24px rgba(33, 43, 34, 0.07);
}

.mu-it-paragraph[hidden] {
    display: none;
}

.mu-it-paragraph-number {
    position: absolute;
    top: 22px;
    left: 15px;
    width: 24px;
    color: #a5aa9e;
    font-size: 0.72rem;
    font-weight: 700;
    text-align: right;
}

.mu-it-paragraph p {
    margin: 0;
    color: #292d28;
    font: 400 clamp(1.03rem, 1.5vw, 1.16rem) / 1.76 Georgia, "Times New Roman", serif;
    text-align: justify;
    text-wrap: pretty;
}

.mu-it-paragraph-actions {
    position: absolute;
    top: 14px;
    right: 12px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    opacity: 0;
    transform: translateY(3px);
    transition: opacity 140ms ease, transform 140ms ease;
}

.mu-it-paragraph:hover .mu-it-paragraph-actions,
.mu-it-paragraph:focus-within .mu-it-paragraph-actions {
    opacity: 1;
    transform: none;
}

.mu-it-paragraph-actions button,
.mu-it-history-use {
    padding: 6px 9px;
    border: 1px solid var(--mu-line);
    border-radius: 999px;
    background: #fff;
    color: var(--mu-green-dark);
    font-size: 0.73rem;
    font-weight: 700;
    cursor: pointer;
}

.mu-it-paragraph-actions button:hover,
.mu-it-paragraph-actions button:focus-visible,
.mu-it-history-use:hover,
.mu-it-history-use:focus-visible {
    border-color: var(--mu-green);
    background: var(--mu-green-soft);
}

.mu-it-updated {
    margin-top: 8px;
    color: #8b9187;
    font-size: 0.72rem;
}

.mu-it-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 900px;
    margin: 48px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--mu-line);
}

.mu-it-pager button {
    padding: 12px 14px;
    border: 0;
    border-radius: 10px;
    background: var(--mu-green-soft);
    color: var(--mu-green-dark);
    font-size: 0.82rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
}

.mu-it-pager button:last-child {
    text-align: right;
}

.mu-it-mobile-nav {
    display: none;
    padding: 14px;
    border-right: 1px solid var(--mu-line);
    border-left: 1px solid var(--mu-line);
    background: #f4f2e9;
}

.mu-it-mobile-nav label {
    display: block;
    margin-bottom: 5px;
    color: var(--mu-muted);
    font-size: 0.75rem;
    font-weight: 700;
}

.mu-it-loading,
.mu-it-reader-loading,
.mu-it-error {
    padding: 42px;
    color: var(--mu-muted);
    text-align: center;
}

.mu-it-error {
    border: 1px solid #e6b9b4;
    border-radius: 12px;
    background: #fff1ef;
    color: var(--mu-danger);
}

.mu-it-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 8px;
    border: 2px solid rgba(51, 74, 53, 0.18);
    border-top-color: var(--mu-green);
    border-radius: 50%;
    vertical-align: -4px;
    animation: mu-it-spin 700ms linear infinite;
}

@keyframes mu-it-spin {
    to { transform: rotate(360deg); }
}

.mu-it-modal[hidden] {
    display: none !important;
}

.mu-it-modal {
    position: fixed;
    z-index: 999999;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 18px;
}

.mu-it-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(22, 29, 23, 0.72);
    backdrop-filter: blur(3px);
}

.mu-it-modal-panel {
    position: relative;
    z-index: 1;
    width: min(900px, 100%);
    max-height: calc(100vh - 36px);
    padding: clamp(24px, 5vw, 46px);
    overflow: auto;
    border-radius: 18px;
    background: var(--mu-paper);
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
}

.mu-it-modal-panel h2 {
    margin: 0 42px 8px 0;
    color: var(--mu-green-dark);
    font: 700 clamp(1.5rem, 4vw, 2.2rem) / 1.15 "Playfair Display", Georgia, serif;
}

.mu-it-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 38px;
    height: 38px;
    border: 1px solid var(--mu-line);
    border-radius: 50%;
    background: #fff;
    color: var(--mu-ink);
    font: 300 1.6rem/1 sans-serif;
    cursor: pointer;
}

.mu-it-modal-intro {
    margin: 0 0 24px;
    color: var(--mu-muted);
}

.mu-it-field {
    display: block;
    margin-bottom: 16px;
}

.mu-it-field > span {
    display: block;
    margin-bottom: 6px;
    color: var(--mu-green-dark);
    font-size: 0.82rem;
    font-weight: 700;
}

.mu-it-field textarea {
    min-height: 240px;
    padding: 14px;
    resize: vertical;
    font: 400 1.02rem/1.6 Georgia, serif;
}

.mu-it-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.mu-it-honeypot {
    position: absolute !important;
    left: -10000px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
}

.mu-it-form-actions {
    justify-content: flex-end;
}

.mu-it-form-message {
    min-height: 24px;
    color: var(--mu-danger);
    font-size: 0.86rem;
}

.mu-it-history {
    display: grid;
    gap: 14px;
}

.mu-it-history-item {
    padding: 16px;
    border: 1px solid var(--mu-line);
    border-radius: 12px;
    background: #fff;
}

.mu-it-history-item header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
}

.mu-it-history-item header strong {
    color: var(--mu-green-dark);
}

.mu-it-history-item header span,
.mu-it-history-note {
    color: var(--mu-muted);
    font-size: 0.8rem;
}

.mu-it-history-item summary {
    margin: 10px 0;
    color: var(--mu-green-dark);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
}

.mu-it-history-diff {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.mu-it-history-diff > div {
    padding: 12px;
    border-radius: 9px;
    background: #f5f3ec;
}

.mu-it-history-diff p {
    margin: 6px 0 0;
    font: 400 0.87rem/1.55 Georgia, serif;
}

.mu-it-history-use {
    margin-top: 10px;
}

.mu-it-help-list {
    padding-left: 1.4em;
}

.mu-it-help-list li {
    margin-bottom: 10px;
}

.mu-it-toast {
    position: fixed;
    z-index: 1000000;
    right: 20px;
    bottom: 20px;
    max-width: min(380px, calc(100vw - 40px));
    padding: 13px 18px;
    border-radius: 10px;
    background: var(--mu-green-dark);
    color: #fff;
    box-shadow: var(--mu-shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 180ms ease, transform 180ms ease;
}

.mu-it-toast.is-visible {
    opacity: 1;
    transform: none;
}

body.mu-it-modal-open {
    overflow: hidden;
}

.mu-it-material-link {
    margin: 14px 0;
}

.mu-it-material-link a {
    display: block;
    padding: 18px 22px;
    border: 1px solid var(--mu-green);
    border-radius: 10px;
    background: var(--mu-green);
    color: #fff !important;
    font-weight: 800;
    letter-spacing: 0.02em;
    text-decoration: none !important;
}

.mu-it-material-link a:hover,
.mu-it-material-link a:focus-visible {
    background: var(--mu-green-dark);
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 960px) {
    .mu-it-mobile-nav { display: block; }
    .mu-it-layout { grid-template-columns: 1fr; }
    .mu-it-sidebar { display: none; }
    .mu-it-reader { padding: 32px 18px 48px; }
    .mu-it-paragraph { padding: 18px 18px 56px 42px; }
    .mu-it-paragraph-actions {
        top: auto;
        right: 14px;
        bottom: 12px;
        flex-direction: row;
        opacity: 1;
        transform: none;
    }
}

@media (max-width: 640px) {
    .mu-it-shell { width: min(100%, calc(100vw - 12px)); }
    .mu-it-hero { padding: 34px 22px; border-radius: 14px 14px 0 0; }
    .mu-it-stats { grid-template-columns: 1fr; }
    .mu-it-stats span + span { border-top: 1px solid var(--mu-line); border-left: 0; }
    .mu-it-layout { border-radius: 0 0 14px 14px; }
    .mu-it-chapter-tools { align-items: stretch; flex-direction: column; }
    .mu-it-chapter-tools label { width: 100%; }
    .mu-it-paragraph p { text-align: left; }
    .mu-it-pager { grid-template-columns: 1fr; }
    .mu-it-pager button:last-child { text-align: left; }
    .mu-it-field-row,
    .mu-it-history-diff { grid-template-columns: 1fr; }
    .mu-it-history-item header { align-items: flex-start; flex-direction: column; }
}

@media print {
    .mu-it-hero-actions,
    .mu-it-stats,
    .mu-it-mobile-nav,
    .mu-it-sidebar,
    .mu-it-paragraph-actions,
    .mu-it-updated,
    .mu-it-pager,
    .mu-it-toast { display: none !important; }
    .mu-it-shell { width: 100%; margin: 0; transform: none; }
    .mu-it-hero { padding: 0 0 22px; background: none; color: #000; }
    .mu-it-hero h2,
    .mu-it-eyebrow,
    .mu-it-subtitle { color: #000; }
    .mu-it-notice { border-color: #bbb; background: none; color: #333; }
    .mu-it-layout { display: block; border: 0; box-shadow: none; }
    .mu-it-reader { padding: 0; }
    .mu-it-paragraph { break-inside: avoid; padding: 8px 0; }
}