/* =============================================================
   rironbusou.com — 理論武装
   Brutalist anti-design / armed-with-theory aesthetic
   ============================================================= */

:root {
    /* Color palette from DESIGN.md */
    --manifesto-black: #0f0f0f;
    --pamphlet-cream:  #f5f0e0;
    --revolutionary-red: #e63946;
    --warning-yellow:  #ffd166;
    --arsenal-teal:    #264653;
    --charcoal:        #2b2b2b;
    --pale-teal:       #a8dadc;
    --deep-navy:       #1d3557;

    --font-display: "Oswald", "Inter", system-ui, sans-serif;
    --font-body:    "Bitter", Georgia, serif;
    --font-marker:  "Permanent Marker", "Inter", cursive;
    --font-jp:      "Noto Sans JP", "Inter", system-ui, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--manifesto-black);
    color: var(--pamphlet-cream);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
}

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

/* =============================================================
   AMBIENT BRAND ELEMENTS
   ============================================================= */

.ambient-slash {
    position: fixed;
    top: 50%;
    right: -6vw;
    transform: translateY(-50%);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 30vw;
    line-height: 0.7;
    color: var(--pamphlet-cream);
    opacity: 0.05;
    pointer-events: none;
    z-index: 1;
    will-change: transform, opacity;
    animation: slash-rotate 120s linear infinite;
}

@keyframes slash-rotate {
    from { transform: translateY(-50%) rotate(0deg); }
    to   { transform: translateY(-50%) rotate(360deg); }
}

.kanji-watermark {
    position: fixed;
    bottom: -8vw;
    left: -4vw;
    font-family: var(--font-jp);
    font-weight: 900;
    font-size: 30vw;
    line-height: 0.85;
    color: var(--revolutionary-red);
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
    letter-spacing: -0.04em;
}

.armed-label {
    position: fixed;
    bottom: 20px;
    left: 22px;
    font-family: var(--font-jp);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--warning-yellow);
    background: var(--manifesto-black);
    padding: 6px 10px;
    border: 2px solid var(--warning-yellow);
    z-index: 50;
    cursor: pointer;
    text-transform: uppercase;
    transition: transform 200ms, color 200ms, background 200ms;
}

.armed-label:hover {
    transform: rotate(-3deg) scale(1.05);
    color: var(--manifesto-black);
    background: var(--warning-yellow);
}

/* =============================================================
   TABLE OF CONTENTS OVERLAY
   ============================================================= */

.toc-overlay {
    position: fixed;
    inset: 0;
    background: var(--warning-yellow);
    color: var(--manifesto-black);
    z-index: 100;
    transform: translateY(-100%);
    transition: transform 320ms cubic-bezier(0.6, 0, 0.4, 1);
    display: flex;
    flex-direction: column;
    padding: 60px 8vw;
    overflow-y: auto;
}

.toc-overlay.is-open {
    transform: translateY(0);
}

.toc-close {
    align-self: flex-end;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 64px;
    line-height: 1;
    background: transparent;
    border: none;
    color: var(--manifesto-black);
    cursor: pointer;
    padding: 0 10px;
    transition: transform 200ms;
}

.toc-close:hover {
    transform: rotate(90deg);
}

.toc-inner {
    max-width: 920px;
    margin-top: 40px;
}

.toc-eyebrow {
    font-family: var(--font-marker);
    font-size: 22px;
    color: var(--revolutionary-red);
    margin: 0 0 30px;
    transform: rotate(-2deg);
    display: inline-block;
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: toc;
}

.toc-list li {
    border-top: 3px solid var(--manifesto-black);
    padding: 20px 0;
}

.toc-list li:last-child {
    border-bottom: 3px solid var(--manifesto-black);
}

.toc-list a {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 5vw, 72px);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--manifesto-black);
    display: inline-block;
    position: relative;
    transition: color 200ms, transform 200ms, padding-left 200ms;
}

.toc-list a:hover {
    color: var(--revolutionary-red);
    transform: translateX(8px);
    padding-left: 8px;
}

.toc-list a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    top: 50%;
    height: 6px;
    background: var(--revolutionary-red);
    transition: right 240ms cubic-bezier(0.4, 0, 0.2, 1);
}

.toc-list a:hover::after {
    right: -8px;
}

/* =============================================================
   PAGE WRAPPER & SECTION BASE
   ============================================================= */

.page {
    position: relative;
    z-index: 2;
}

.section {
    position: relative;
    padding: clamp(80px, 12vw, 180px) 8vw;
    overflow: hidden;
}

/* Diagonal section cuts */
.section--text + .section--explosion,
.section--explosion + .section--text,
.section--text + .section--text {
    margin-top: -60px;
}

/* Section markers */
.section-marker {
    display: flex;
    align-items: baseline;
    gap: 18px;
    margin-bottom: 40px;
    border-top: 4px solid var(--revolutionary-red);
    padding-top: 18px;
    transform: rotate(-0.5deg);
}

.section-marker--inverse {
    border-color: var(--warning-yellow);
}

.section-num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 68px;
    line-height: 1;
    color: var(--revolutionary-red);
    letter-spacing: -0.04em;
    position: relative;
}

.section-marker--inverse .section-num {
    color: var(--warning-yellow);
}

.section-num::after {
    content: "";
    position: absolute;
    bottom: 0.18em;
    left: 0;
    width: 100%;
    height: 0.04em;
    background: var(--manifesto-black);
}

.section-label {
    font-family: var(--font-jp);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--pamphlet-cream);
}

.section--charcoal {
    background: var(--charcoal);
    clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
    padding-top: clamp(120px, 16vw, 220px);
    padding-bottom: clamp(120px, 16vw, 220px);
    margin-top: -50px;
}

.section--manifesto {
    background: var(--manifesto-black);
    border-top: 4px solid var(--revolutionary-red);
    border-bottom: 4px solid var(--warning-yellow);
}

/* =============================================================
   SECTION 01 — OPENING SALVO
   ============================================================= */

.section--opening {
    min-height: 100vh;
    padding-top: clamp(80px, 14vh, 160px);
    padding-bottom: clamp(80px, 14vh, 160px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--manifesto-black);
}

.opening-stack {
    position: relative;
    z-index: 4;
}

.opening-title {
    font-family: var(--font-jp);
    font-weight: 900;
    font-size: 18vw;
    line-height: 0.85;
    color: var(--revolutionary-red);
    letter-spacing: -0.04em;
    margin: 0;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    text-shadow:
        4px 0 0 var(--arsenal-teal);
}

.opening-title__char {
    display: inline-block;
    transform: translateY(-110vh);
    opacity: 0;
    will-change: transform, opacity;
}

.opening-title.is-revealed .opening-title__char {
    transform: translateY(0);
    opacity: 1;
    transition: transform 300ms cubic-bezier(0.95, 0, 0.95, 0.5),
                opacity 80ms linear;
}

.opening-title.is-revealed .opening-title__char[data-char="1"] { transition-delay: 0ms; }
.opening-title.is-revealed .opening-title__char[data-char="2"] { transition-delay: 60ms; }
.opening-title.is-revealed .opening-title__char[data-char="3"] { transition-delay: 120ms; }
.opening-title.is-revealed .opening-title__char[data-char="4"] { transition-delay: 180ms; }

.opening-subtitle {
    font-family: var(--font-marker);
    font-size: clamp(18px, 1.6vw, 22px);
    color: var(--warning-yellow);
    transform: rotate(-2deg) translateX(8vw);
    margin: 18px 0 0;
    opacity: 0;
    transition: opacity 240ms ease-out 500ms;
}

.opening-title.is-revealed ~ .opening-subtitle {
    opacity: 1;
}

#openingSubtitle.is-revealed {
    opacity: 1;
}

.opening-tag {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(14px, 1.4vw, 18px);
    letter-spacing: 0.4em;
    color: var(--pamphlet-cream);
    margin: 60px 0 0;
    text-transform: uppercase;
    border-top: 2px solid var(--pamphlet-cream);
    border-bottom: 2px solid var(--pamphlet-cream);
    padding: 10px 0;
    display: inline-block;
    transform: translateX(2vw);
    opacity: 0;
    transition: opacity 220ms ease-out 720ms;
}

#openingTag.is-revealed {
    opacity: 1;
}

.opening-meta {
    margin-top: clamp(60px, 10vh, 120px);
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    border-top: 1px dashed var(--pamphlet-cream);
    padding-top: 24px;
    position: relative;
    z-index: 4;
}

.meta-line {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--pale-teal);
}

.meta-line:nth-child(2) {
    color: var(--warning-yellow);
}

/* =============================================================
   TEXT BANDS
   ============================================================= */

.section--text {
    background: var(--manifesto-black);
}

.text-band {
    max-width: 60vw;
    margin-left: 8vw;
    position: relative;
    z-index: 3;
}

@media (max-width: 900px) {
    .text-band { max-width: 100%; margin-left: 0; }
}

.band-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(40px, 7vw, 96px);
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    color: var(--pamphlet-cream);
    margin: 0 0 40px;
    transform: rotate(-1deg);
}

.band-body p {
    margin: 0 0 22px;
    color: var(--pamphlet-cream);
}

.lede {
    font-size: 21px;
    line-height: 1.55;
    color: var(--warning-yellow);
    font-weight: 400;
    border-left: 4px solid var(--revolutionary-red);
    padding-left: 22px;
    margin: 0 0 30px !important;
}

.band-body em {
    font-style: italic;
    color: var(--revolutionary-red);
}

/* Strike-through hover links */
.strike-link {
    position: relative;
    color: var(--warning-yellow);
    font-weight: 700;
    display: inline-block;
    padding: 0 2px;
}

.strike-link::after {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    height: 3px;
    width: 0%;
    background: var(--revolutionary-red);
    transition: width 200ms ease-out;
    transform: translateY(-50%);
}

.strike-link:hover::after {
    width: 100%;
}

.strike-link:hover {
    color: var(--pamphlet-cream);
}

/* =============================================================
   OVERPRINT EFFECT
   ============================================================= */

.overprint {
    position: relative;
    color: var(--pamphlet-cream);
    text-shadow:
        3px 3px 0 var(--revolutionary-red),
        -3px -2px 0 var(--arsenal-teal);
}

/* =============================================================
   MARGIN NOTES
   ============================================================= */

.margin-note {
    position: absolute;
    font-family: var(--font-marker);
    font-size: clamp(16px, 1.6vw, 22px);
    color: var(--warning-yellow);
    transform: rotate(-3deg);
    max-width: 220px;
    line-height: 1.3;
    z-index: 4;
}

.margin-note--right {
    top: 20%;
    right: 4vw;
}

.margin-note__bullet {
    font-family: var(--font-jp);
    font-size: 1.3em;
    color: var(--revolutionary-red);
    margin-right: 6px;
}

@media (max-width: 900px) {
    .margin-note { display: none; }
}

/* =============================================================
   TYPOGRAPHIC EXPLOSIONS
   ============================================================= */

.section--explosion {
    min-height: 90vh;
    background: var(--manifesto-black);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    padding-top: clamp(100px, 14vw, 200px);
    padding-bottom: clamp(100px, 14vw, 200px);
}

.section--explosion-1 {
    background: linear-gradient(180deg, var(--manifesto-black) 0%, var(--manifesto-black) 100%);
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
    margin-top: -60px;
    margin-bottom: -60px;
}

.section--explosion-2 {
    background: var(--deep-navy);
    clip-path: polygon(0 6%, 100% 0, 100% 94%, 0 100%);
    margin-top: -60px;
    margin-bottom: -60px;
}

.section--explosion-3 {
    background: var(--revolutionary-red);
    clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
    margin-top: -60px;
}

.explosion-content {
    display: flex;
    flex-direction: column;
    width: 100%;
    z-index: 3;
    position: relative;
}

.explosion-content--stacked .explosion-text {
    margin-left: -2vw;
}

.explosion-content--collapsed {
    align-items: center;
    text-align: center;
}

.explosion-text {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    line-height: 0.85;
    display: inline-block;
    will-change: transform;
}

.explosion-text--main {
    font-size: clamp(80px, 22vw, 360px);
    color: var(--pamphlet-cream);
}

.explosion-text--sub {
    font-size: clamp(60px, 12vw, 180px);
    color: var(--warning-yellow);
    margin-left: 30vw;
    font-weight: 600;
}

.explosion-text--accent {
    color: var(--revolutionary-red);
    text-shadow: 4px 4px 0 var(--arsenal-teal);
}

.explosion-text--bold {
    color: var(--warning-yellow);
}

.explosion-text--mega {
    font-size: clamp(100px, 30vw, 500px);
    line-height: 0.8;
    color: var(--manifesto-black);
    text-shadow: 6px 6px 0 var(--warning-yellow);
}

.section--explosion-3 .explosion-text--accent {
    color: var(--manifesto-black);
    text-shadow: 6px 6px 0 var(--warning-yellow);
}

/* Apply rotations from data attribute */
.explosion-text[data-rotation="-4"] { transform: rotate(-4deg); }
.explosion-text[data-rotation="-3"] { transform: rotate(-3deg); }
.explosion-text[data-rotation="-2"] { transform: rotate(-2deg); }
.explosion-text[data-rotation="-1"] { transform: rotate(-1deg); }
.explosion-text[data-rotation="2"]  { transform: rotate(2deg); }
.explosion-text[data-rotation="3"]  { transform: rotate(3deg); }

.explosion-cite {
    font-family: var(--font-marker);
    color: var(--warning-yellow);
    font-size: clamp(14px, 1.4vw, 18px);
    margin-top: 60px;
    transform: rotate(-2deg) translateX(8vw);
    z-index: 3;
    position: relative;
}

.explosion-overlay {
    position: absolute;
    bottom: 8vh;
    right: 6vw;
    text-align: right;
    z-index: 4;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.explosion-overlay--center {
    bottom: auto;
    right: auto;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 5;
    pointer-events: none;
}

.overlay-line {
    font-family: var(--font-marker);
    font-size: clamp(16px, 1.6vw, 22px);
    color: var(--pamphlet-cream);
    line-height: 1.3;
}

.section--explosion-3 .overlay-line {
    color: var(--manifesto-black);
}

.overlay-line--big {
    font-family: var(--font-jp);
    font-weight: 900;
    font-size: clamp(40px, 8vw, 120px);
    color: var(--pamphlet-cream);
    letter-spacing: -0.04em;
}

.section--explosion-3 .overlay-line--big {
    color: var(--manifesto-black);
}

/* =============================================================
   SECTION 04 — ARGUMENT GRID
   ============================================================= */

.argument-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 28px;
    position: relative;
    z-index: 3;
}

.argument-block {
    background: transparent;
    padding: 24px;
    border-left: 3px solid var(--warning-yellow);
}

.argument-block--a { grid-column: 1 / span 5; }
.argument-block--b { grid-column: 6 / span 5; transform: translateY(40px); }
.argument-block--c { grid-column: 2 / span 5; transform: translateY(-30px); }
.argument-block--d {
    grid-column: 6 / span 5;
    border-left-color: var(--revolutionary-red);
    background: var(--manifesto-black);
    color: var(--pamphlet-cream);
    padding: 28px;
}

@media (max-width: 900px) {
    .argument-grid { grid-template-columns: 1fr; }
    .argument-block,
    .argument-block--a,
    .argument-block--b,
    .argument-block--c,
    .argument-block--d {
        grid-column: 1 / -1;
        transform: none;
    }
}

.block-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 22px;
    letter-spacing: 0.18em;
    color: var(--revolutionary-red);
    text-transform: uppercase;
    margin: 0 0 14px;
}

.argument-block--d .block-title {
    color: var(--warning-yellow);
}

.argument-block p {
    margin: 0;
    color: var(--pamphlet-cream);
}

.argument-block--a p,
.argument-block--b p,
.argument-block--c p {
    color: var(--pamphlet-cream);
}

/* Pull quotes — torn paper aesthetic */
.pull-quote {
    background: var(--warning-yellow);
    color: var(--manifesto-black);
    padding: 32px 36px 28px;
    position: relative;
    z-index: 5;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(20px, 2.2vw, 30px);
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    clip-path: polygon(
        0% 6%, 4% 0%, 12% 4%, 22% 1%, 30% 5%, 42% 0%, 54% 3%, 66% 0%, 78% 4%, 88% 1%, 96% 5%, 100% 2%,
        100% 94%, 96% 100%, 88% 96%, 76% 99%, 64% 95%, 52% 100%, 40% 96%, 28% 99%, 16% 95%, 6% 100%, 0% 94%
    );
    box-shadow: 6px 6px 0 var(--revolutionary-red);
}

.pull-quote--a {
    grid-column: 1 / span 6;
    transform: rotate(-2deg);
    margin: 30px 0;
}

.pull-quote--b {
    transform: rotate(2deg);
    margin-top: 50px;
    max-width: 520px;
    align-self: end;
    background: var(--revolutionary-red);
    color: var(--pamphlet-cream);
    box-shadow: 6px 6px 0 var(--warning-yellow);
}

.pull-quote p {
    margin: 0;
}

.quote-mark {
    font-family: var(--font-display);
    font-size: 80px;
    line-height: 0.6;
    display: block;
    color: var(--revolutionary-red);
    margin-bottom: 8px;
}

.quote-attr {
    display: block;
    margin-top: 16px;
    font-family: var(--font-marker);
    font-size: 14px;
    color: var(--manifesto-black);
    text-transform: none;
    letter-spacing: 0;
    transform: rotate(-1deg);
}

/* Slash decoration clusters */
.slash-cluster {
    position: absolute;
    top: 8%;
    right: 6vw;
    width: 220px;
    height: 220px;
    pointer-events: none;
    z-index: 2;
    transform: rotate(-12deg);
}

.slash-cluster--right {
    top: auto;
    bottom: 6%;
    right: 8vw;
    transform: rotate(12deg);
}

.slash-line {
    display: block;
    width: 100%;
    height: 1px;
    border-bottom: 2px dashed var(--revolutionary-red);
    margin-bottom: 14px;
}

.slash-line:nth-child(2) { width: 80%; }
.slash-line:nth-child(3) { width: 60%; border-bottom-style: solid; height: 3px; border-color: var(--warning-yellow); }
.slash-line:nth-child(4) { width: 90%; }
.slash-line:nth-child(5) { width: 50%; }

/* =============================================================
   SECTION 06 — MANIFESTO
   ============================================================= */

.manifesto-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 30px;
    position: relative;
    z-index: 3;
}

.manifesto-title {
    grid-column: 1 / -1;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(56px, 10vw, 160px);
    line-height: 0.9;
    text-transform: uppercase;
    letter-spacing: -0.04em;
    margin: 0 0 60px;
    color: var(--pamphlet-cream);
    transform: rotate(-1deg);
}

.manifesto-list {
    grid-column: 1 / span 7;
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: manifesto;
}

.manifesto-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 2px solid var(--charcoal);
}

.manifesto-item:last-child {
    border-bottom: none;
}

.manifesto-num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 56px;
    line-height: 1;
    color: var(--revolutionary-red);
    letter-spacing: -0.04em;
}

.manifesto-item p {
    margin: 0;
    font-size: 18px;
    line-height: 1.6;
    color: var(--pamphlet-cream);
}

.manifesto-item:nth-child(odd) .manifesto-num {
    color: var(--warning-yellow);
}

@media (max-width: 900px) {
    .manifesto-list { grid-column: 1 / -1; }
    .manifesto-item { grid-template-columns: 70px 1fr; gap: 14px; }
    .manifesto-num { font-size: 40px; }
}

/* =============================================================
   SECTION 08 — COLOPHON
   ============================================================= */

.section--colophon {
    background: var(--charcoal);
    padding-top: clamp(120px, 16vw, 200px);
    padding-bottom: clamp(80px, 12vw, 140px);
    clip-path: polygon(0 6%, 100% 0, 100% 100%, 0 100%);
    margin-top: -50px;
}

.colophon-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 50px;
    margin-top: 30px;
    position: relative;
    z-index: 3;
}

.colophon-block {
    border-top: 2px solid var(--warning-yellow);
    padding-top: 18px;
}

.colophon-head {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--warning-yellow);
    margin: 0 0 12px;
}

.colophon-block p {
    margin: 0;
    color: var(--pamphlet-cream);
    font-size: 16px;
    line-height: 1.6;
}

.signature {
    font-family: var(--font-marker);
    color: var(--pale-teal);
    font-size: 15px;
}

.colophon-coda {
    margin-top: 80px;
    text-align: center;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--pamphlet-cream);
    font-size: clamp(14px, 1.8vw, 22px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.coda-mark {
    color: var(--revolutionary-red);
    font-size: 1.6em;
    transform: translateY(-2px);
}

@media (max-width: 720px) {
    .colophon-grid { grid-template-columns: 1fr; }
}

/* =============================================================
   INK SPLATTERS
   ============================================================= */

.ink-splatter {
    position: absolute;
    pointer-events: none;
    z-index: 2;
    opacity: 0.22;
    width: 320px;
    height: 320px;
    filter: blur(0.4px);
}

.ink-splatter--red {
    background:
        radial-gradient(circle at 22% 30%, var(--revolutionary-red) 0 18px, transparent 19px),
        radial-gradient(circle at 60% 18%, var(--revolutionary-red) 0 36px, transparent 37px),
        radial-gradient(circle at 75% 55%, var(--revolutionary-red) 0 12px, transparent 13px),
        radial-gradient(circle at 40% 70%, var(--revolutionary-red) 0 50px, transparent 51px),
        radial-gradient(circle at 80% 80%, var(--revolutionary-red) 0 22px, transparent 23px),
        radial-gradient(circle at 18% 84%, var(--revolutionary-red) 0 28px, transparent 29px),
        radial-gradient(circle at 55% 42%, var(--revolutionary-red) 0 8px, transparent 9px);
}

.ink-splatter--yellow {
    background:
        radial-gradient(circle at 28% 22%, var(--warning-yellow) 0 26px, transparent 27px),
        radial-gradient(circle at 70% 30%, var(--warning-yellow) 0 14px, transparent 15px),
        radial-gradient(circle at 50% 60%, var(--warning-yellow) 0 42px, transparent 43px),
        radial-gradient(circle at 82% 70%, var(--warning-yellow) 0 18px, transparent 19px),
        radial-gradient(circle at 15% 75%, var(--warning-yellow) 0 32px, transparent 33px),
        radial-gradient(circle at 60% 90%, var(--warning-yellow) 0 10px, transparent 11px);
    opacity: 0.3;
}

.ink-splatter--bottom {
    bottom: -60px;
    left: 4vw;
    transform: rotate(-12deg);
}

.ink-splatter--top-right {
    top: -40px;
    right: 4vw;
    transform: rotate(15deg);
}

.ink-splatter--top-left {
    top: -40px;
    left: 4vw;
    transform: rotate(-22deg);
}

.ink-splatter--bottom-right {
    bottom: -40px;
    right: 4vw;
    transform: rotate(18deg);
}

/* =============================================================
   SCROLL ESCALATION (intensified by JS via classes)
   ============================================================= */

body[data-intensity="2"] .ambient-slash { opacity: 0.08; }
body[data-intensity="3"] .ambient-slash { opacity: 0.12; }
body[data-intensity="4"] .ambient-slash { opacity: 0.15; }

body[data-intensity="3"] .overprint {
    text-shadow:
        4px 4px 0 var(--revolutionary-red),
        -4px -3px 0 var(--arsenal-teal);
}

body[data-intensity="4"] .overprint {
    text-shadow:
        5px 5px 0 var(--revolutionary-red),
        -5px -4px 0 var(--arsenal-teal);
}

/* Collision-zone vibration when active */
.is-colliding .pull-quote,
.is-colliding .explosion-overlay,
.is-colliding .margin-note {
    animation: vibrate 3s ease-in-out infinite;
}

@keyframes vibrate {
    0%, 100% { transform: translate(0, 0) rotate(var(--rot, 0deg)); }
    25%      { transform: translate(1px, -1px) rotate(var(--rot, 0deg)); }
    50%      { transform: translate(-1px, 1px) rotate(var(--rot, 0deg)); }
    75%      { transform: translate(2px, 1px) rotate(var(--rot, 0deg)); }
}

.pull-quote--a { --rot: -2deg; }
.pull-quote--b { --rot:  2deg; }

/* =============================================================
   REDUCED RESPONSIVE TWEAKS
   ============================================================= */

@media (max-width: 720px) {
    .opening-title { font-size: 26vw; }
    .section { padding: 80px 6vw; }
    .opening-meta { gap: 16px; }
    .meta-line { font-size: 11px; letter-spacing: 0.2em; }
    .ambient-slash { font-size: 45vw; right: -12vw; opacity: 0.04; }
    .toc-list a { font-size: 32px; }
    .slash-cluster { display: none; }
    .ink-splatter { width: 200px; height: 200px; }
}