:root {
    --c-midnight: #0e1830;
    --c-shadow: #0a1020;
    --c-investigation: #2a4a7a;
    --c-marble: #e8e0d4;
    --c-amber: #d4a040;
    --c-report: #d0d4dc;
    --c-sketch: #6a7a8a;
    --f-head: "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
    --f-body: "Source Serif 4", "Iowan Old Style", Georgia, serif;
    --f-mono: "Fira Mono", "Menlo", "Consolas", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--f-body);
    background: var(--c-midnight);
    color: var(--c-report);
    line-height: 1.85;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 12% 8%, rgba(42, 74, 122, 0.18) 0%, transparent 38%),
        radial-gradient(circle at 88% 92%, rgba(212, 160, 64, 0.06) 0%, transparent 42%);
}

/* === OPENING === */
.opening {
    position: relative;
    min-height: 100vh;
    background: var(--c-midnight);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
}

.opening-bg {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1.2s ease-out;
}

.opening-bg.diagram-revealed { opacity: 1; }

.opening-diagram {
    width: 100%;
    height: 100%;
    display: block;
    position: absolute;
    inset: 0;
}

.opening-diagram .diagram-line,
.opening-diagram .diagram-arrow {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    animation: sketch-line 2.4s ease-out forwards;
}

.opening-diagram .diagram-node,
.opening-diagram .diagram-dot {
    opacity: 0;
    animation: sketch-fade 1.6s ease-out forwards;
}

.opening-diagram .diagram-node:nth-of-type(2) { animation-delay: 0.15s; }
.opening-diagram .diagram-node:nth-of-type(3) { animation-delay: 0.30s; }
.opening-diagram .diagram-node:nth-of-type(4) { animation-delay: 0.45s; }
.opening-diagram .diagram-node:nth-of-type(5) { animation-delay: 0.60s; }
.opening-diagram .diagram-node:nth-of-type(6) { animation-delay: 0.75s; }
.opening-diagram .diagram-node:nth-of-type(7) { animation-delay: 0.90s; }
.opening-diagram .diagram-node:nth-of-type(8) { animation-delay: 1.05s; }
.opening-diagram .diagram-node:nth-of-type(9) { animation-delay: 1.20s; }
.opening-diagram .diagram-line:nth-of-type(odd) { animation-delay: 1.4s; }
.opening-diagram .diagram-line:nth-of-type(even) { animation-delay: 1.6s; }
.opening-diagram .diagram-arrow { animation-delay: 2s; stroke-dasharray: 60; stroke-dashoffset: 60; }

@keyframes sketch-line {
    to { stroke-dashoffset: 0; }
}
@keyframes sketch-fade {
    to { opacity: 1; }
}

.opening-content {
    position: relative;
    z-index: 2;
    padding: clamp(36px, 6vw, 96px) clamp(24px, 6vw, 96px);
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    background: linear-gradient(180deg, rgba(10, 16, 32, 0.55) 0%, rgba(14, 24, 48, 0.25) 30%, rgba(14, 24, 48, 0.6) 80%, rgba(10, 16, 32, 0.85) 100%);
}

.masthead {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-top: 1px solid rgba(208, 212, 220, 0.4);
    border-bottom: 1px solid rgba(208, 212, 220, 0.4);
    padding: 14px 0;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-report);
    opacity: 0;
    animation: fade-up 1s ease-out forwards;
    animation-delay: 0.4s;
}

.kicker { color: var(--c-amber); }
.dateline { color: var(--c-report); }

.masthead-title {
    align-self: center;
    font-family: var(--f-head);
    font-weight: 900;
    font-size: clamp(48px, 11vw, 168px);
    line-height: 0.92;
    letter-spacing: -0.01em;
    color: var(--c-marble);
    text-transform: uppercase;
    padding: clamp(40px, 7vw, 80px) 0;
}

.title-line {
    display: block;
    overflow: hidden;
}

.title-line span { display: inline-block; }

.title-line {
    transform: translateY(110%);
    opacity: 0;
    animation: title-rise 1.2s cubic-bezier(0.2, 0.7, 0.25, 1) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.6s; }
.title-line:nth-child(2) { animation-delay: 0.8s; }

@keyframes title-rise {
    to { transform: translateY(0); opacity: 1; }
}

.standfirst {
    max-width: 640px;
    font-family: var(--f-body);
    font-size: clamp(16px, 1.5vw, 20px);
    line-height: 1.7;
    color: var(--c-report);
    margin-bottom: 24px;
    font-style: italic;
    opacity: 0;
    animation: fade-up 1s ease-out forwards;
    animation-delay: 1.1s;
}

.byline {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: baseline;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--c-sketch);
    margin-bottom: 36px;
    opacity: 0;
    animation: fade-up 1s ease-out forwards;
    animation-delay: 1.3s;
}

.byline-label { color: var(--c-amber); }
.byline-name { color: var(--c-report); font-weight: 700; }

@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.scroll-cue {
    display: flex;
    align-items: center;
    gap: 18px;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-amber);
    opacity: 0;
    animation: fade-up 1s ease-out forwards;
    animation-delay: 1.6s;
}

.cue-rule {
    display: block;
    width: 80px;
    height: 1px;
    background: var(--c-amber);
    animation: cue-pulse 2.6s ease-in-out infinite;
}

@keyframes cue-pulse {
    0%, 100% { width: 80px; opacity: 0.6; }
    50% { width: 140px; opacity: 1; }
}

/* === SPREADS === */
.spread {
    position: relative;
    padding: clamp(60px, 9vw, 140px) clamp(20px, 5vw, 80px);
    background: var(--c-midnight);
}

.spread-feature {
    background: var(--c-investigation);
}

.spread-twothirds {
    background: var(--c-shadow);
}

.spread-narrow {
    background: var(--c-midnight);
    border-top: 1px solid rgba(208, 212, 220, 0.08);
    border-bottom: 1px solid rgba(208, 212, 220, 0.08);
}

.spread-data {
    background: var(--c-shadow);
}

.spread-grid {
    max-width: 1320px;
    margin: 0 auto;
    display: grid;
    gap: clamp(28px, 4vw, 64px);
    position: relative;
}

.grid-feature {
    grid-template-columns: 1fr;
    grid-template-areas:
        "folio"
        "main"
        "margin";
}

@media (min-width: 900px) {
    .grid-feature {
        grid-template-columns: 1fr 2.2fr 1fr;
        grid-template-areas: "folio main margin";
    }
}

.spread-flipped .grid-feature {
    grid-template-areas:
        "folio"
        "margin"
        "main";
}

@media (min-width: 900px) {
    .spread-flipped .grid-feature {
        grid-template-columns: 1fr 1fr 2.2fr;
        grid-template-areas: "folio margin main";
    }
}

.grid-twothirds {
    grid-template-columns: 1fr;
    grid-template-areas:
        "folio"
        "main"
        "side";
}

@media (min-width: 900px) {
    .grid-twothirds {
        grid-template-columns: 1fr 2fr 1.1fr;
        grid-template-areas: "folio main side";
    }
}

.grid-narrow {
    grid-template-columns: 1fr;
    grid-template-areas:
        "folio"
        "main";
    max-width: 820px;
}

.folio {
    grid-area: folio;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-amber);
    align-self: start;
    padding-top: 6px;
    border-top: 1px solid var(--c-amber);
    writing-mode: horizontal-tb;
}

@media (min-width: 900px) {
    .folio {
        writing-mode: vertical-rl;
        transform: rotate(180deg);
        border-top: none;
        border-right: 1px solid var(--c-amber);
        padding: 0 6px 0 0;
        padding-top: 0;
        align-self: start;
        height: 220px;
    }
}

/* article zones */
.feature-article,
.dossier-article,
.commentary-article,
.map-article,
.data-article {
    grid-area: main;
    background: var(--c-marble);
    color: var(--c-midnight);
    padding: clamp(28px, 4vw, 56px);
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35), 0 6px 18px rgba(0, 0, 0, 0.25);
    z-index: 2;
    overflow: hidden;
}

/* marble veining */
.feature-article::before,
.dossier-article::before,
.commentary-article::before,
.map-article::before,
.data-article::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(115deg, transparent 0 38px, rgba(14, 24, 48, 0.04) 38px 39px, transparent 39px 76px),
        repeating-linear-gradient(65deg, transparent 0 92px, rgba(14, 24, 48, 0.03) 92px 93px, transparent 93px 184px),
        radial-gradient(ellipse at 20% 30%, rgba(14, 24, 48, 0.04) 0%, transparent 60%);
    pointer-events: none;
    mix-blend-mode: multiply;
}

.feature-article > *,
.dossier-article > *,
.commentary-article > *,
.map-article > *,
.data-article > * {
    position: relative;
    z-index: 1;
}

.section-kicker,
.data-card-label {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-investigation);
    margin-bottom: 18px;
    border-bottom: 1px solid var(--c-amber);
    padding-bottom: 4px;
}

.feature-headline,
.dossier-headline,
.commentary-headline,
.map-headline,
.data-headline {
    font-family: var(--f-head);
    font-weight: 700;
    font-size: clamp(28px, 4.5vw, 52px);
    line-height: 1.04;
    color: var(--c-midnight);
    margin-bottom: 22px;
    letter-spacing: -0.005em;
}

.lede {
    font-family: var(--f-body);
    font-size: clamp(17px, 1.6vw, 21px);
    line-height: 1.55;
    color: var(--c-investigation);
    font-style: italic;
    margin-bottom: 28px;
    border-left: 3px solid var(--c-amber);
    padding-left: 18px;
}

.feature-body p {
    font-family: var(--f-body);
    font-size: clamp(15px, 1.15vw, 18px);
    line-height: 1.85;
    color: var(--c-midnight);
    margin-bottom: 20px;
}

.dropcap-paragraph .dropcap {
    font-family: var(--f-head);
    font-weight: 700;
    font-size: 4.5em;
    line-height: 0.85;
    float: left;
    margin: 4px 12px 0 0;
    color: var(--c-amber);
}

.article-foot {
    margin-top: 28px;
    padding-top: 14px;
    border-top: 1px solid rgba(14, 24, 48, 0.2);
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-investigation);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.dossier-article p,
.map-article p,
.commentary-article p,
.data-article p {
    font-family: var(--f-body);
    font-size: clamp(15px, 1.15vw, 18px);
    line-height: 1.8;
    color: var(--c-midnight);
    margin-bottom: 18px;
}

.signoff {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-investigation);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 28px;
    text-align: right;
}

.route-diagram-wrap,
.map-diagram-wrap {
    margin: 28px 0;
    padding: 22px;
    background: rgba(14, 24, 48, 0.04);
    border: 1px solid rgba(14, 24, 48, 0.12);
}

.route-diagram,
.map-diagram {
    width: 100%;
    height: auto;
    display: block;
}

/* margin notes / aside */
.margin-note {
    grid-area: margin;
    align-self: start;
    background: var(--c-shadow);
    color: var(--c-report);
    padding: 22px 26px;
    border-left: 2px solid var(--c-amber);
    margin-top: clamp(0px, 4vw, 80px);
    margin-left: clamp(0px, 0vw, 0px);
    font-family: var(--f-body);
    font-size: 14px;
    line-height: 1.7;
    transform: rotate(-0.4deg);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4);
    position: relative;
    z-index: 3;
}

@media (min-width: 900px) {
    .margin-note {
        margin-left: -32px;
    }
}

.margin-note-flipped {
    transform: rotate(0.6deg);
}

@media (min-width: 900px) {
    .margin-note-flipped {
        margin-left: 0;
        margin-right: -32px;
    }
}

.note-tag {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-amber);
    margin-bottom: 10px;
}

.note-body {
    font-style: italic;
    color: var(--c-report);
}

.data-card {
    grid-area: side;
    background: var(--c-marble);
    color: var(--c-midnight);
    padding: 28px;
    align-self: start;
    margin-top: clamp(0px, 4vw, 60px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
    transform: rotate(0.5deg);
    position: relative;
    z-index: 3;
    overflow: hidden;
}

.data-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(122deg, transparent 0 32px, rgba(14, 24, 48, 0.04) 32px 33px, transparent 33px 64px);
    pointer-events: none;
}

.data-card > * {
    position: relative;
}

.ledger-list {
    list-style: none;
    margin-bottom: 18px;
    border-top: 1px solid rgba(14, 24, 48, 0.15);
}

.ledger-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px dashed rgba(14, 24, 48, 0.18);
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-midnight);
}

.ledger-key { color: var(--c-investigation); letter-spacing: 0.05em; text-transform: uppercase; }
.ledger-val { font-weight: 700; }

.data-card-foot {
    font-family: var(--f-body);
    font-size: 13px;
    line-height: 1.6;
    color: var(--c-investigation);
    font-style: italic;
}

.source-table {
    background: var(--c-shadow);
    color: var(--c-report);
    padding: 22px;
    overflow-x: auto;
    margin: 24px 0;
    font-family: var(--f-mono);
    font-size: 12px;
    line-height: 1.7;
    border-left: 3px solid var(--c-amber);
}

.source-table code {
    white-space: pre;
    color: var(--c-report);
}

/* skeleton */
.skeleton-host { position: relative; }

.skeleton-block {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0;
}

.skeleton-line {
    height: 14px;
    background: linear-gradient(90deg, rgba(106, 122, 138, 0.18) 0%, rgba(106, 122, 138, 0.42) 50%, rgba(106, 122, 138, 0.18) 100%);
    background-size: 220% 100%;
    animation: shimmer 1.6s ease-in-out infinite;
    border-radius: 1px;
    width: 100%;
}

.skeleton-line-tall { height: 38px; width: 70%; margin-bottom: 6px; }
.skeleton-line-short { width: 45%; }
.skeleton-line-medium { width: 70%; }

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.real-content {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    inset: 0;
    padding: inherit;
    transition: opacity 0.7s ease-out;
}

.skeleton-host.resolved .skeleton-block {
    display: none;
}

.skeleton-host.resolved .real-content {
    position: static;
    opacity: 1;
    visibility: visible;
}

/* footer */
.masthead-foot {
    background: var(--c-shadow);
    border-top: 2px solid var(--c-amber);
    padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 80px);
    color: var(--c-report);
}

.foot-grid {
    max-width: 1320px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

@media (min-width: 800px) {
    .foot-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.foot-label {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-amber);
    margin-bottom: 12px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(212, 160, 64, 0.4);
}

.foot-text {
    font-family: var(--f-body);
    font-size: 14px;
    line-height: 1.7;
    color: var(--c-report);
}

@media (max-width: 720px) {
    .masthead-title { font-size: clamp(48px, 18vw, 96px); }
    .feature-headline,
    .dossier-headline,
    .commentary-headline,
    .map-headline,
    .data-headline { font-size: clamp(26px, 7vw, 36px); }
    .opening-content { padding-top: 80px; }
    .folio { padding-bottom: 14px; }
}