:root {
    --dr-bg: #f5f1e8;
    --dr-paper: #fffdf8;
    --dr-paper-soft: #faf5ea;
    --dr-text: #22201b;
    --dr-muted: #6d675d;
    --dr-border: rgba(34, 32, 27, 0.15);
    --dr-accent: #8f5b24;
    --dr-accent-soft: rgba(143, 91, 36, 0.12);
    --dr-rule: rgba(34, 32, 27, 0.25);
    --dr-shadow: 0 20px 70px rgba(43, 36, 26, 0.09);
    --dr-max: 1040px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        linear-gradient(90deg, rgba(34, 32, 27, 0.035) 1px, transparent 1px),
        linear-gradient(rgba(34, 32, 27, 0.025) 1px, transparent 1px),
        var(--dr-bg);
    background-size: 42px 42px;
    color: var(--dr-text);
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.75;
}

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

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

.dr-shell {
    width: min(var(--dr-max), calc(100% - 40px));
    margin: 0 auto;
}

.dr-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 26px 0;
    border-bottom: 1px solid var(--dr-rule);
}

.dr-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.dr-brand-mark {
    width: 34px;
    height: 34px;
    border: 1px solid var(--dr-rule);
    background:
        linear-gradient(135deg, var(--dr-accent-soft), transparent),
        var(--dr-paper);
    position: relative;
}

.dr-brand-mark::before,
.dr-brand-mark::after {
    content: "";
    position: absolute;
    background: var(--dr-accent);
}

.dr-brand-mark::before {
    width: 16px;
    height: 2px;
    left: 8px;
    top: 11px;
}

.dr-brand-mark::after {
    width: 16px;
    height: 2px;
    left: 8px;
    top: 20px;
}

.dr-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}

.dr-nav a {
    color: var(--dr-muted);
}

.dr-nav a:hover {
    color: var(--dr-text);
}

.dr-report-cover,
.dr-page-header {
    padding: 58px 0 34px;
    border-bottom: 1px solid var(--dr-rule);
}

.dr-cover-meta {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 28px;
    color: var(--dr-muted);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.dr-report-cover h1,
.dr-page-header h1 {
    max-width: 980px;
    margin: 0;
    font-size: clamp(42px, 7vw, 88px);
    line-height: 0.95;
    letter-spacing: -0.065em;
    font-weight: 700;
}

.dr-abstract {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 24px;
    max-width: 900px;
    margin-top: 34px;
    padding: 24px 0 0;
    border-top: 1px solid var(--dr-border);
}

.dr-abstract span,
.dr-summary-title span,
.dr-index-title span,
.dr-section-heading span {
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.dr-abstract p {
    margin: 0;
    color: var(--dr-muted);
    font-size: 20px;
}

.dr-summary-box,
.dr-index-section,
.dr-appendix,
.dr-research-notes {
    margin-top: 34px;
    padding: 30px;
    background: var(--dr-paper);
    border: 1px solid var(--dr-border);
    box-shadow: var(--dr-shadow);
}

.dr-summary-box {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
}

.dr-summary-title h2,
.dr-index-title h2,
.dr-section-heading h2 {
    margin: 8px 0 0;
    font-size: 28px;
    line-height: 1.1;
}

.dr-summary-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.dr-summary-points article {
    padding-top: 16px;
    border-top: 3px solid var(--dr-accent);
}

.dr-summary-points strong {
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
}

.dr-summary-points h3 {
    margin: 8px 0;
    font-size: 22px;
    line-height: 1.15;
}

.dr-summary-points p,
.dr-note-copy p,
.dr-faq-item p,
.dr-footer p {
    color: var(--dr-muted);
}

.dr-index-section {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 28px;
}

.dr-index-list {
    display: grid;
    gap: 8px;
}

.dr-index-list a {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--dr-border);
}

.dr-index-list span {
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    font-weight: 900;
}

.dr-report-body {
    margin-top: 44px;
}

.dr-report-section {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 28px;
    padding: 42px 0;
    border-bottom: 1px solid var(--dr-rule);
}

.dr-section-number {
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    font-weight: 900;
}

.dr-section-content {
    max-width: 820px;
}

.dr-section-content h2 {
    margin: 0 0 20px;
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.dr-section-content p {
    margin: 0 0 18px;
    color: var(--dr-text);
    font-size: 18px;
}

.dr-inline-note {
    margin: 28px 0 0;
    padding: 22px;
    background: var(--dr-paper-soft);
    border-left: 4px solid var(--dr-accent);
}

.dr-inline-note strong {
    display: block;
    margin-bottom: 8px;
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
}

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

.dr-section-heading {
    margin-bottom: 22px;
}

.dr-note-list {
    display: grid;
    gap: 18px;
}

.dr-note-item {
    display: grid;
    grid-template-columns: 130px 220px 1fr;
    gap: 22px;
    align-items: stretch;
    padding: 18px 0;
    border-top: 1px solid var(--dr-border);
}

.dr-note-meta {
    color: var(--dr-muted);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.dr-note-meta strong {
    display: block;
    margin-top: 12px;
    color: var(--dr-accent);
    font-size: 24px;
}

.dr-note-image {
    margin: 0;
    min-height: 150px;
    background: var(--dr-paper-soft);
    overflow: hidden;
}

.dr-note-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dr-note-copy h3 {
    margin: 0 0 8px;
    font-size: 28px;
    line-height: 1.12;
}

.dr-note-copy a,
.dr-link-strip a {
    display: inline-flex;
    margin-top: 8px;
    color: var(--dr-accent);
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 900;
}

.dr-faq-list {
    display: grid;
    gap: 10px;
}

.dr-faq-item {
    padding: 16px 0;
    border-top: 1px solid var(--dr-border);
}

.dr-faq-item summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 19px;
}

.dr-cover-image {
    margin: 32px 0 0;
    border: 1px solid var(--dr-border);
    background: var(--dr-paper-soft);
    overflow: hidden;
}

.dr-cover-image img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}

.dr-link-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    padding: 34px 0;
}

.dr-footer {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 38px 0;
    border-top: 1px solid var(--dr-rule);
    font-family: Arial, Helvetica, sans-serif;
}

.dr-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-end;
}

.dr-footer-links a {
    color: var(--dr-muted);
}

html[dir="rtl"] body {
    direction: rtl;
    text-align: right;
}

html[dir="rtl"] .dr-inline-note {
    border-left: none;
    border-right: 4px solid var(--dr-accent);
}

html[lang="ar"] body {
    font-family: Tahoma, Arial, Helvetica, sans-serif;
}

@media (max-width: 860px) {
    .dr-header,
    .dr-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .dr-nav,
    .dr-footer-links {
        justify-content: flex-start;
    }

    .dr-summary-box,
    .dr-index-section,
    .dr-abstract,
    .dr-report-section,
    .dr-note-item {
        grid-template-columns: 1fr;
    }

    .dr-summary-points {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .dr-shell {
        width: min(var(--dr-max), calc(100% - 24px));
    }

    .dr-report-cover,
    .dr-page-header {
        padding-top: 38px;
    }

    .dr-summary-box,
    .dr-index-section,
    .dr-appendix,
    .dr-research-notes {
        padding: 22px;
    }

    .dr-report-cover h1,
    .dr-page-header h1 {
        font-size: clamp(36px, 13vw, 54px);
    }
}