/* ============================================================
   concepts.news — Graffiti / Hexagonal-Honeycomb / Ethereal Blue
   Implementation markers: IntersectionObserver `threshold: 0.15`. `transform
   ============================================================ */

:root {
    --fog-concrete: #1c1e2a;
    --twilight-slate: #252840;
    --frost-breath: #d4dff0;
    --neon-cerulean: #3da5f4;
    --phantom-violet: #7b6bb5;
    --rust-stencil: #c47a4e;
    --tunnel-black: #0d0e18;

    --hex-clip: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);

    --hex-w: 280px;
    --hex-h: 323.4px; /* 280 * 1.155 */
    --hex-gap: 8px;

    --ease-out-expo: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--fog-concrete);
    color: var(--frost-breath);
    font-family: "Commissioner", "Inter", "Arial Narrow", system-ui, -apple-system, sans-serif;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse at 20% 10%, rgba(61, 165, 244, 0.06), transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(123, 107, 181, 0.05), transparent 55%),
        linear-gradient(180deg, var(--fog-concrete) 0%, #16182250 50%, var(--fog-concrete) 100%);
}

.svg-defs {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* ============================================================
   GRAIN TEXTURE OVERLAY
   ============================================================ */
.grain-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.08;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' seed='7'/><feColorMatrix values='0 0 0 0 0.55  0 0 0 0 0.65  0 0 0 0 0.85  0 0 0 0.6 0'/></filter><rect width='300' height='300' filter='url(%23n)'/></svg>");
}

/* ============================================================
   PARTICLE SYSTEM
   ============================================================ */
.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particles span {
    position: absolute;
    border-radius: 50%;
    will-change: transform, opacity;
    filter: blur(0.3px);
}

/* ============================================================
   TYPOGRAPHY — SHARED
   ============================================================ */
h1, h2, h3 {
    font-family: "Commissioner", "Inter", "Arial Narrow", sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1.0;
    color: var(--frost-breath);
}

p {
    color: var(--frost-breath);
}

em {
    font-style: italic;
    color: var(--neon-cerulean);
}

strong {
    font-weight: 700;
    color: var(--frost-breath);
}

main {
    position: relative;
    z-index: 2;
}

/* ============================================================
   WALL (HERO)
   ============================================================ */
.wall {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem 6rem;
    position: relative;
    overflow: hidden;
}

.wall-grid {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.55;
    animation: breathe 12s ease-in-out infinite;
}

.wall-grid svg {
    width: 100%;
    height: 100%;
    display: block;
}

@keyframes breathe {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.02); }
}

.wall-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    width: 100%;
    text-align: center;
}

.dateline {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--rust-stencil);
    margin-bottom: 2rem;
    padding: 0.5rem 0.9rem;
    border: 1px dashed rgba(196, 122, 78, 0.5);
    background: rgba(13, 14, 24, 0.4);
}

.dateline-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--rust-stencil);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(196, 122, 78, 0.7); }
    50% { opacity: 0.5; box-shadow: 0 0 0 8px rgba(196, 122, 78, 0); }
}

.hero-title {
    position: relative;
    font-size: clamp(2.8rem, 14vw, 11rem);
    font-weight: 900;
    letter-spacing: 0.06em;
    line-height: 0.9;
    text-transform: uppercase;
    margin-bottom: 0.2em;
    color: var(--frost-breath);
    text-shadow:
        3px 3px 0 var(--tunnel-black),
        -1px -1px 0 var(--neon-cerulean),
        6px 6px 20px rgba(61, 165, 244, 0.25);
    filter: url(#spray-noise);
}

.hero-title-main {
    display: inline-block;
    position: relative;
}

.hero-title-drips {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: 90px;
    pointer-events: none;
    display: block;
}

.hero-title-drips span {
    position: absolute;
    top: -6px;
    left: var(--drip-left);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--neon-cerulean) 0%, rgba(61, 165, 244, 0) 100%);
    border-radius: 0 0 50% 50%;
    animation: drip 3.4s var(--drip-delay, 0s) ease-in infinite;
    opacity: 0.55;
}

.hero-title-drips span:nth-child(2n) {
    background: linear-gradient(180deg, var(--phantom-violet) 0%, rgba(123, 107, 181, 0) 100%);
    width: 2px;
}

.hero-title-drips span:nth-child(3n) {
    width: 4px;
}

@keyframes drip {
    0% { height: 0; opacity: 0.7; }
    60% { height: var(--drip-height, 50px); opacity: 0.5; }
    100% { height: var(--drip-height, 50px); opacity: 0; }
}

.hero-sub {
    font-family: "Commissioner", "Inter", "Arial Narrow", sans-serif;
    font-weight: 700;
    font-size: clamp(1.2rem, 3vw, 2rem);
    letter-spacing: 0.4em;
    color: var(--rust-stencil);
    text-transform: uppercase;
    margin: 1.4rem 0 1.5rem;
    display: inline-block;
    padding: 0.3rem 1.2rem;
    border-top: 2px solid var(--rust-stencil);
    border-bottom: 2px solid var(--rust-stencil);
    transform: rotate(-1.2deg);
}

.hero-tagline {
    max-width: 540px;
    margin: 0 auto 3.5rem;
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.7;
    color: rgba(212, 223, 240, 0.78);
    font-style: italic;
    font-weight: 300;
}

.hero-scroll {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1rem;
}

.wobble-arrow {
    width: 36px;
    height: 80px;
    stroke: var(--rust-stencil);
    stroke-width: 2.5;
    fill: none;
    stroke-linecap: round;
    animation: wobble-descend 2.6s ease-in-out infinite;
}

@keyframes wobble-descend {
    0%, 100% { transform: translateY(0) rotate(-1deg); }
    50% { transform: translateY(10px) rotate(1.5deg); }
}

.hero-scroll-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--rust-stencil);
    text-transform: uppercase;
}

.spray-divider {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 4px;
    background: var(--neon-cerulean);
    opacity: 0.7;
    box-shadow:
        12px -3px 0 -1px var(--neon-cerulean),
        -18px 2px 0 -2px var(--phantom-violet),
        40px -1px 0 -2px var(--neon-cerulean),
        -50px 4px 0 -3px var(--phantom-violet),
        80px -2px 0 -2px var(--neon-cerulean),
        -90px 1px 0 -1px var(--neon-cerulean),
        120px 3px 0 -2px var(--phantom-violet),
        -140px -2px 0 -1px var(--neon-cerulean),
        180px 2px 0 -3px var(--phantom-violet),
        -200px 3px 0 -2px var(--neon-cerulean),
        240px -1px 0 -2px var(--neon-cerulean),
        -260px 2px 0 -3px var(--phantom-violet);
    filter: blur(0.4px);
}

/* ============================================================
   SECTION HEADS (SHARED)
   ============================================================ */
.section-head {
    max-width: 1200px;
    margin: 0 auto 3rem;
    padding: 6rem 2rem 0;
    text-align: center;
    position: relative;
}

.section-number {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--neon-cerulean);
    margin-bottom: 1rem;
    padding: 0.2rem 0.8rem;
    border: 1px solid var(--neon-cerulean);
    border-radius: 0;
    transform: rotate(-0.8deg);
}

.section-title {
    font-size: clamp(1.6rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: 0.1em;
    margin-bottom: 0.8rem;
    color: var(--frost-breath);
    text-shadow: 2px 2px 0 var(--tunnel-black), -1px -1px 0 var(--neon-cerulean);
    filter: url(#spray-noise);
}

.section-byline {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--phantom-violet);
    font-weight: 500;
}

/* ============================================================
   HONEYCOMB SECTION
   ============================================================ */
.honeycomb {
    padding: 4rem 0 8rem;
    position: relative;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='139'><path d='M60 0 L120 35 L120 104 L60 139 L0 104 L0 35 Z' fill='none' stroke='%23252840' stroke-width='1' opacity='0.4'/></svg>");
    background-size: 120px 139px;
}

.hex-wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: calc(var(--hex-h) * -0.25 + var(--hex-gap));
}

.hex-row {
    display: grid;
    grid-template-columns: repeat(3, var(--hex-w));
    gap: var(--hex-gap);
    justify-content: center;
}

.hex-row-even {
    margin-left: calc(var(--hex-w) / 2 + var(--hex-gap) / 2);
}

.hex-cell {
    width: var(--hex-w);
    aspect-ratio: 1 / 1.155;
    clip-path: var(--hex-clip);
    background: var(--twilight-slate);
    position: relative;
    transition: background 0.3s ease, transform 0.5s var(--ease-out-expo);
    cursor: pointer;
    overflow: hidden;
}

.hex-cell::before {
    content: "";
    position: absolute;
    inset: 2px;
    clip-path: var(--hex-clip);
    background: var(--twilight-slate);
    z-index: 1;
}

.hex-cell::after {
    content: "";
    position: absolute;
    inset: 0;
    clip-path: var(--hex-clip);
    background: linear-gradient(135deg, transparent 40%, rgba(61, 165, 244, 0.08) 100%);
    z-index: 0;
}

.hex-cell:hover {
    background: var(--neon-cerulean);
    transform: translateY(-4px) scale(1.02);
}

.hex-cell:hover::before {
    background: #2d3050;
}

.hex-inner {
    position: absolute;
    inset: 0;
    z-index: 3;
    padding: 22% 14% 20%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hex-tag {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 0.25rem 0.55rem;
    margin-bottom: 0.9rem;
    border: 1px solid currentColor;
    font-stretch: 90%;
}

.tag-philosophy { color: var(--neon-cerulean); }
.tag-science { color: var(--phantom-violet); }
.tag-culture { color: var(--rust-stencil); }
.tag-tech { color: var(--frost-breath); }

.hex-headline {
    font-size: clamp(0.9rem, 1.1vw, 1.05rem);
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1.1;
    margin-bottom: 0.6rem;
    color: var(--frost-breath);
    text-transform: uppercase;
}

.hex-excerpt {
    font-size: 0.72rem;
    line-height: 1.45;
    color: rgba(212, 223, 240, 0.75);
    margin-bottom: 0.8rem;
    font-weight: 300;
    max-width: 82%;
}

.hex-meta {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--rust-stencil);
    text-transform: uppercase;
}

/* Tag-only hex cells */
.hex-tagcell {
    background: var(--neon-cerulean);
}

.hex-tagcell::before {
    background: var(--neon-cerulean);
}

.hex-tagcell.tag-culture {
    background: var(--rust-stencil);
}
.hex-tagcell.tag-culture::before {
    background: var(--rust-stencil);
}

.hex-tagcell.tag-philosophy-deep {
    background: var(--phantom-violet);
}
.hex-tagcell.tag-philosophy-deep::before {
    background: var(--phantom-violet);
}

.hex-tagcell.tag-science-deep {
    background: #2b3b6a;
}
.hex-tagcell.tag-science-deep::before {
    background: #2b3b6a;
}

.hex-tagcell .hex-tagword {
    font-size: clamp(1rem, 1.6vw, 1.4rem);
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--tunnel-black);
    filter: url(#spray-noise);
}

.hex-tagcell:hover {
    transform: translateY(-4px) scale(1.04) rotate(-1deg);
}

/* Illustration hex cells */
.hex-illustration .hex-inner {
    padding: 22% 18%;
}

.illo {
    width: 70%;
    height: auto;
    margin-bottom: 0.6rem;
    overflow: visible;
}

.illo .draw {
    fill: none;
    stroke: var(--neon-cerulean);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    transition: stroke-dashoffset 1.2s ease-in-out;
}

.hex-cell.is-visible .illo .draw,
.stencil.is-visible .illo .draw,
.tunnel.is-visible .illo .draw {
    stroke-dashoffset: 0;
}

.draw-slow {
    stroke-dasharray: 900;
    stroke-dashoffset: 900;
    transition: stroke-dashoffset 2s ease-in-out;
}

.illo-caption {
    font-size: 0.58rem;
    letter-spacing: 0.22em;
    font-weight: 700;
    color: var(--rust-stencil);
    text-transform: uppercase;
}

/* Reveal animations */
.reveal {
    opacity: 0;
    transition:
        transform 0.6s var(--ease-out-expo),
        opacity 0.6s ease;
}

.reveal-left { transform: translateX(-60px); }
.reveal-center { transform: translateY(60px); }
.reveal-right { transform: translateX(60px); }

.reveal.is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* ============================================================
   STENCIL (FEATURE) SECTION
   ============================================================ */
.stencil {
    position: relative;
    padding: 8rem 2rem 10rem;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(61, 165, 244, 0.06), transparent 50%),
        linear-gradient(180deg, var(--tunnel-black) 0%, #0f1020 50%, var(--tunnel-black) 100%);
}

.stencil-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 80px,
            rgba(61, 165, 244, 0.03) 80px,
            rgba(61, 165, 244, 0.03) 82px
        ),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 80px,
            rgba(123, 107, 181, 0.02) 80px,
            rgba(123, 107, 181, 0.02) 82px
        );
    opacity: 0.6;
}

.stencil-head {
    max-width: 720px;
    margin: 0 auto 3rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

.stencil-kicker {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--rust-stencil);
    text-transform: uppercase;
    margin: 1rem 0;
    padding: 0.2rem 0.7rem;
    background: rgba(196, 122, 78, 0.1);
    border: 1px dashed var(--rust-stencil);
}

.stencil-title {
    font-size: clamp(2.4rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: 0.05em;
    line-height: 0.92;
    margin: 1.5rem 0 2rem;
    color: var(--frost-breath);
    text-shadow:
        4px 4px 0 var(--tunnel-black),
        -2px -2px 0 var(--neon-cerulean),
        0 0 40px rgba(61, 165, 244, 0.2);
    filter: url(#spray-noise);
    transform: rotate(-1.5deg);
}

.stencil-byline {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--phantom-violet);
    font-weight: 500;
}

.byline-name {
    color: var(--rust-stencil);
    font-weight: 700;
}

.stencil-body {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    font-size: clamp(1rem, 1.15vw, 1.15rem);
    line-height: 1.8;
}

.stencil-body p {
    margin-bottom: 1.6rem;
    color: rgba(212, 223, 240, 0.9);
    font-weight: 300;
}

.lede {
    font-size: clamp(1.1rem, 1.4vw, 1.35rem) !important;
    line-height: 1.6 !important;
    color: var(--frost-breath) !important;
    font-weight: 400 !important;
    border-left: 3px solid var(--neon-cerulean);
    padding-left: 1.4rem;
    margin-bottom: 2.4rem !important;
}

.stencil-outro {
    font-style: italic;
    color: var(--rust-stencil) !important;
    font-weight: 400 !important;
    font-size: 1.1rem !important;
    margin-top: 3rem !important;
    padding-top: 2rem;
    border-top: 1px dashed rgba(196, 122, 78, 0.4);
}

.pullquote {
    font-family: "Commissioner", "Inter", "Arial Narrow", sans-serif;
    font-weight: 800;
    font-size: clamp(1.6rem, 3.5vw, 2.6rem);
    letter-spacing: 0.05em;
    line-height: 1.1;
    text-transform: uppercase;
    color: var(--neon-cerulean);
    margin: 3.5rem 0;
    padding: 1.5rem 1rem;
    position: relative;
    text-shadow: 2px 2px 0 var(--tunnel-black);
    filter: url(#spray-noise);
    border: none;
}

.pullquote-left {
    transform: rotate(-2deg);
    text-align: left;
    border-left: 4px solid var(--neon-cerulean);
    padding-left: 1.6rem;
    margin-left: -1rem;
}

.pullquote-right {
    transform: rotate(1.5deg);
    text-align: right;
    border-right: 4px solid var(--phantom-violet);
    padding-right: 1.6rem;
    color: var(--phantom-violet);
    margin-right: -1rem;
}

.pullquote-mark {
    display: block;
    font-size: 3.5rem;
    line-height: 0.5;
    color: var(--rust-stencil);
    margin-bottom: 0.5rem;
}

.margin-diagram {
    float: right;
    width: 180px;
    margin: 1rem -60px 1.5rem 2rem;
    text-align: center;
    transform: rotate(2deg);
}

.margin-diagram svg {
    width: 100%;
    height: auto;
    overflow: visible;
}

.margin-diagram .draw {
    fill: none;
    stroke: var(--neon-cerulean);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 900;
    stroke-dashoffset: 900;
    transition: stroke-dashoffset 2s ease-in-out 0.3s;
}

.diagram-caption {
    display: block;
    margin-top: 0.6rem;
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--rust-stencil);
    text-transform: uppercase;
}

/* ============================================================
   TUNNEL (ARCHIVE)
   ============================================================ */
.tunnel {
    position: relative;
    padding: 6rem 2rem 4rem;
    background: linear-gradient(180deg, var(--tunnel-black) 0%, #060710 100%);
    perspective: 800px;
    overflow: hidden;
}

.tunnel-head {
    padding-top: 2rem;
    margin-bottom: 4rem;
}

.tunnel-perspective {
    max-width: 900px;
    margin: 0 auto;
    transform-style: preserve-3d;
    perspective: 800px;
}

.tunnel-list {
    list-style: none;
    padding: 0;
    transform: rotateX(8deg);
    transform-origin: top center;
}

.tunnel-row {
    display: grid;
    grid-template-columns: 100px 1fr 130px;
    align-items: center;
    gap: 1.5rem;
    padding: 1.1rem 1.5rem;
    margin-bottom: 0.4rem;
    border-bottom: 1px dashed rgba(61, 165, 244, calc(0.3 - var(--row, 0) * 0.03));
    opacity: calc(1 - var(--row, 0) * 0.08);
    transform: scale(calc(1 - var(--row, 0) * 0.015));
    transform-origin: center center;
    transition: background 0.3s ease, transform 0.4s ease;
    cursor: pointer;
}

.tunnel-row:hover {
    background: rgba(61, 165, 244, 0.05);
    transform: scale(calc(1 - var(--row, 0) * 0.015)) translateX(6px);
}

.tunnel-date {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--rust-stencil);
    text-transform: uppercase;
}

.tunnel-title-line {
    font-family: "Commissioner", "Inter", "Arial Narrow", sans-serif;
    font-size: clamp(0.95rem, 1.4vw, 1.25rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--frost-breath);
    text-transform: uppercase;
}

.tunnel-tag {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--neon-cerulean);
    text-align: right;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border: 1px solid rgba(61, 165, 244, 0.4);
    justify-self: end;
}

.tunnel-footer {
    text-align: center;
    margin-top: 5rem;
    padding-top: 3rem;
    position: relative;
}

.tunnel-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--neon-cerulean);
    opacity: 0.4;
    box-shadow:
        20px 1px 0 -1px var(--phantom-violet),
        -30px -1px 0 -1px var(--neon-cerulean),
        60px 2px 0 -2px var(--neon-cerulean),
        -70px 1px 0 -1px var(--phantom-violet),
        100px -1px 0 -2px var(--neon-cerulean);
    filter: blur(0.3px);
}

.eye-icon {
    width: 80px;
    height: auto;
    margin-bottom: 1rem;
    overflow: visible;
}

.eye-icon .draw {
    fill: none;
    stroke: var(--neon-cerulean);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 500;
    stroke-dashoffset: 500;
    transition: stroke-dashoffset 1.8s ease-in-out;
}

.stay-awake {
    font-size: clamp(1.2rem, 2.2vw, 1.8rem);
    font-weight: 800;
    letter-spacing: 0.3em;
    color: var(--rust-stencil);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 0 var(--tunnel-black);
    filter: url(#spray-noise);
}

.tunnel-colophon {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--phantom-violet);
    text-transform: uppercase;
    font-weight: 500;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
    :root {
        --hex-w: 220px;
        --hex-h: 254.1px;
    }

    .hex-row {
        grid-template-columns: repeat(2, var(--hex-w));
    }

    .hex-row-even {
        margin-left: calc(var(--hex-w) / 2 + var(--hex-gap) / 2);
    }

    .hex-row > .hex-cell:nth-child(3) {
        display: none;
    }

    .margin-diagram {
        float: none;
        margin: 2rem auto;
        width: 140px;
    }
}

@media (max-width: 640px) {
    :root {
        --hex-w: 180px;
        --hex-h: 207.9px;
    }

    .hero-title-drips {
        height: 60px;
    }

    .hero-sub {
        letter-spacing: 0.3em;
    }

    .tunnel-row {
        grid-template-columns: 70px 1fr;
        gap: 0.8rem;
    }

    .tunnel-tag {
        grid-column: 2;
        justify-self: start;
        margin-top: 0.3rem;
    }

    .pullquote-left,
    .pullquote-right {
        margin-left: 0;
        margin-right: 0;
    }

    .stencil-body {
        padding: 0 0.4rem;
    }
}

@media (max-width: 480px) {
    :root {
        --hex-w: 150px;
        --hex-h: 173.25px;
    }

    .hex-headline {
        font-size: 0.75rem;
    }

    .hex-excerpt {
        font-size: 0.6rem;
    }

    .hex-tag {
        font-size: 0.55rem;
        margin-bottom: 0.4rem;
    }

    .hex-meta {
        font-size: 0.5rem;
    }
}