/* ===========================
   ROOT VARIABLES
=========================== */
:root {
    --bg: #f7f4ef;
    --bg-2: #efeae2;
    --bg-3: #e8e2d8;
    --text: #1a1a1a;
    --text-muted: #555;
    --text-light: #999;
    --accent: #b3002d;
    --accent-hover: #8f0024;
    --border: #d0c8bc;
    --border-light: #e5dfd7;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-ui: 'DM Sans', sans-serif;
    --col-width: 900px;
    --transition: 0.25s ease;
    --navbar-height: 52px;
}

/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto; /* handled by JS for offset */
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    padding-top: var(--navbar-height);
}

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

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

/* ===========================
   TOP BAR
=========================== */
.top-bar {
    background: var(--accent);
    color: #fff;
    font-family: var(--font-ui);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.45rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* ===========================
   NAVBAR
=========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 2px solid var(--text);
    padding: 0;
    transition: box-shadow var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

.nav-inner {
    width: 100%;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 3rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
    flex-shrink: 0;
    transition: color var(--transition);
}

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

/* ===========================
   NAV LINKS - AESTHETIC
=========================== */
.nav-links {
    list-style: none;
    display: flex;
    gap: 0;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    font-family: var(--font-ui);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: block;
    padding: 0.4rem 1.2rem;
    position: relative;
    transition: color var(--transition);
}

/* Animated underline on hover */
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 1.2rem;
    right: 1.2rem;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.25s ease;
    transform-origin: left;
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
}

/* Active state */
.nav-links a.active {
    color: var(--accent);
    font-weight: 600;
}

.nav-links a.active::after {
    transform: scaleX(1);
}

/* ===========================
   MOBILE TOGGLE
=========================== */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
    padding: 0.25rem;
}

/* ===========================
   ARTICLE WRAPPER
=========================== */
.article-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* ===========================
   ARTICLE HEADER
=========================== */
.article-header {
    padding: 3.5rem 0 2rem;
}

.header-content {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    max-width: var(--col-width);
}

.header-text {
    flex: 1;
}

.header-image {
    width: 220px;
    flex-shrink: 0;
    padding-top: 0;
    margin-top: 0;
}

.header-image img {
    width: 100%;
    height: auto;
    background: transparent;
}

.article-category {
    font-family: var(--font-ui);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.1rem;
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.article-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
}

.article-standfirst {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.65;
    color: var(--text-muted);
    margin-top: 6rem;
    margin-bottom: 1.25rem;
    font-style: italic;
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
}

.article-meta {
    font-family: var(--font-ui);
    font-size: 0.72rem;
    color: var(--text-light);
    letter-spacing: 0.05em;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.meta-dot {
    color: var(--border);
}

.header-rule {
    height: 2px;
    background: var(--text);
    max-width: var(--col-width);
}

/* ===========================
   ARTICLE SECTIONS
=========================== */
.article-section {
    max-width: var(--col-width);
    padding: 2.5rem 0;
}

.article-section p {
    margin-bottom: 1.25rem;
    color: var(--text);
    font-size: 1rem;
    line-height: 1.85;
}

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

/* Drop cap */
.drop-cap {
    float: left;
    font-family: var(--font-display);
    font-size: 4.8rem;
    font-weight: 700;
    line-height: 0.75;
    margin-right: 0.08em;
    margin-top: 0.1em;
    color: var(--accent);
}

/* Section heading */
.section-heading {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 1.1rem;
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    color: var(--text);
    line-height: 1.2;
}

.section-num {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.18rem 0.4rem;
    text-transform: uppercase;
    flex-shrink: 0;
}

/* Section divider */
.section-divider {
    max-width: var(--col-width);
    height: 1px;
    background: var(--border);
}

/* ===========================
   INFOBOX
=========================== */
.infobox {
    background: var(--bg-2);
    border-left: 3px solid var(--accent);
    padding: 0.6rem 1.5rem;
    margin: 0.7rem 0;
}

.infobox-title {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.1rem;
}

.infobox-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.infobox-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.infobox-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
}

.infobox-label {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===========================
   CHARTS
=========================== */
.chart-figure {
    margin: 2.25rem 0;
    padding-top: 1rem;
}

.chart-figure img {
    width: 100%;
    background: var(--bg);
}

.iframe-wrapper {
    background: var(--bg);
    border: none;
    overflow: hidden;
}

.iframe-wrapper iframe {
    display: block;
    width: 100%;
}

figcaption {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.6rem;
    line-height: 1.55;
    padding-bottom: 0.6rem;
}

figcaption strong {
    color: var(--text);
}

/* ===========================
   FINDINGS
=========================== */
.finding-block {
    margin: 1.75rem 0;
    padding-left: 1.2rem;
    border-left: 3px solid var(--border);
    transition: border-color var(--transition);
}

.finding-block:hover {
    border-left-color: var(--accent);
}

.finding-label {
    font-family: var(--font-ui);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.35rem;
}

.finding-block h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.45rem;
    color: var(--text);
    line-height: 1.3;
}

.finding-block p {
    font-size: 0.95rem !important;
    color: var(--text-muted) !important;
    margin-bottom: 0 !important;
    line-height: 1.65 !important;
}

.conclusion-box {
    background: var(--text);
    color: #f7f4ef;
    padding: 1.75rem 2rem;
    margin-top: 2.5rem;
}

.conclusion-box p {
    color: #f7f4ef !important;
    font-size: 1rem !important;
    line-height: 1.75 !important;
    margin-bottom: 0 !important;
}
.conclusion-box p + p {
    margin-top: 1rem;
}

.conclusion-box strong {
    color: #e8a8a8;
}

/* ===========================
   FOOTER
=========================== */
.footer {
    margin-top: 4rem;
    padding: 0 1.5rem 3rem;
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.footer-rule {
    height: 2px;
    background: var(--text);
    margin-bottom: 1.5rem;
}

.footer p {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-small {
    font-size: 0.68rem !important;
    color: var(--text-light) !important;
    margin-top: 0.4rem;
}
/* ===========================
   LIMITATION BOX
=========================== */
.limitation-box {
    border-left: 3px solid var(--accent);
    background: var(--bg-2);
    padding: 1.4rem 1.5rem;
    margin: 2rem 0;
    border-radius: 0;
}

.limitation-title {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.limitation-box p {
    font-size: 0.95rem !important;
    color: var(--text-muted) !important;
    line-height: 1.75 !important;
    margin-bottom: 0 !important;
}

.quote-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1rem 0 2rem;
}

.quote-box {
    background: var(--bg-2);
    border-left: 3px solid var(--accent);
    padding: 1.25rem 1.5rem;
}

.quote-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-style: italic;
    color: var(--text);
    line-height: 1.75;
    margin-bottom: 0.75rem;
}

.quote-source {
    font-family: var(--font-ui);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent) !important;
    margin: 0;
}
/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 768px) {
    .infobox-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-links {
        display: none;
        flex-direction: column;
        gap: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 2px solid var(--text);
        padding: 0.5rem 0;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        border-top: 1px solid var(--border-light);
    }

    .nav-links a {
        display: block;
        padding: 0.75rem 1.5rem;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .drop-cap {
        font-size: 3.8rem;
    }

    .article-header,
    .article-section,
    .section-divider {
        max-width: 100%;
    }

    .section-heading {
        font-size: 1.4rem;
    }

    .header-image {
        display: none;
    }

    .top-bar {
        padding: 0.45rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .infobox-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .article-title {
        font-size: 2rem;
    }

    .top-bar span:last-child {
        display: none;
    }
}