/* ==========================================================
   meltdown.quest — neon-electric, sharp-angle-only stylesheet
   ========================================================== */

/* ---------- TOKENS ---------- */
:root {
    /* Palette */
    --c-void:           #0A0A0F;
    --c-reactor-dark:   #12101E;
    --c-pink:           #FF2D6A;
    --c-cyan:           #00F0FF;
    --c-chart:          #BFFF00;
    --c-magenta:        #D946EF;
    --c-text:           #E8E0F0;
    --c-text-dim:       #7B8CA8;
    --c-black:          #000000;

    /* Glow stages — drive intensity by zone via JS */
    --glow-blur: 4px;

    /* Sawtooth tooth height */
    --sawtooth-h: 40px;
}

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

html {
    scroll-behavior: smooth;
    background: var(--c-void);
}

body {
    font-family: 'Commissioner', 'Inter', system-ui, sans-serif;
    font-weight: 300;
    font-size: 18px;
    line-height: 1.65;
    color: var(--c-text);
    background: var(--c-void);
    overflow-x: hidden;
    min-height: 100vh;
}

::selection {
    background: var(--c-pink);
    color: var(--c-void);
}

/* ---------- ZONE BASE ---------- */
.zone {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* ============================================================
   ZONE 1 — HERO / REACTOR CORE
   ============================================================ */
.zone--hero {
    height: 120vh;
    min-height: 800px;
    background:
        radial-gradient(ellipse at center, transparent 0%, transparent 100%) /* (no gradient — kept transparent) */,
        var(--c-void);
    background-color: var(--c-void);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Background "shards" — radiating triangular fragments */
.hero__shards {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.shard {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 50vh;
    transform-origin: top center;
    opacity: 0.18;
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    will-change: transform, opacity;
}
.shard--1 { background: var(--c-pink);    transform: translate(-50%, 0) rotate(15deg)  scaleY(0.85); }
.shard--2 { background: var(--c-cyan);    transform: translate(-50%, 0) rotate(67deg)  scaleY(1.05); }
.shard--3 { background: var(--c-chart);   transform: translate(-50%, 0) rotate(112deg) scaleY(0.7);  }
.shard--4 { background: var(--c-magenta); transform: translate(-50%, 0) rotate(168deg) scaleY(0.95); }
.shard--5 { background: var(--c-pink);    transform: translate(-50%, 0) rotate(208deg) scaleY(0.8);  }
.shard--6 { background: var(--c-cyan);    transform: translate(-50%, 0) rotate(255deg) scaleY(1.1);  }
.shard--7 { background: var(--c-chart);   transform: translate(-50%, 0) rotate(295deg) scaleY(0.75); }
.shard--8 { background: var(--c-magenta); transform: translate(-50%, 0) rotate(335deg) scaleY(0.9);  }

/* Reactor core SVG */
.reactor-core {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(120vh, 92vw);
    height: min(120vh, 92vw);
    transform: translate(-50%, -50%);
    z-index: 2;
    pointer-events: none;
}

.reactor-rays line {
    stroke: var(--c-text-dim);
    stroke-width: 1.5;
    opacity: 0.55;
}

.ray-tip {
    fill: var(--c-cyan);
    filter: drop-shadow(0 0 6px var(--c-cyan));
}

.hex {
    fill: none;
    stroke-width: 2;
    transform-origin: 0 0;
    transform-box: fill-box;
    will-change: transform;
}

.hex use {
    transform-origin: 0 0;
}

.hex--outer {
    stroke: var(--c-pink);
    filter: drop-shadow(0 0 8px var(--c-pink));
    animation: hexSpinOuter var(--reactor-period, 30s) linear infinite;
}
.hex--mid {
    stroke: var(--c-cyan);
    filter: drop-shadow(0 0 8px var(--c-cyan));
    animation: hexSpinMid var(--reactor-period, 30s) linear infinite reverse;
}
.hex--inner {
    stroke: var(--c-chart);
    stroke-width: 2.5;
    filter: drop-shadow(0 0 10px var(--c-chart));
    animation: hexSpinInner var(--reactor-period, 30s) linear infinite;
}
.hex--core {
    stroke: var(--c-pink);
    fill: var(--c-void);
    stroke-width: 3;
    filter: drop-shadow(0 0 14px var(--c-pink));
    animation: hexSpinCore var(--reactor-period, 30s) linear infinite, hexCorePulse 2s ease-in-out infinite;
    transform-origin: center;
}

@keyframes hexSpinOuter { from { transform: rotate(0deg);   } to { transform: rotate(360deg);   } }
@keyframes hexSpinMid   { from { transform: rotate(0deg);   } to { transform: rotate(360deg);   } }
@keyframes hexSpinInner { from { transform: rotate(0deg);   } to { transform: rotate(-360deg);  } }
@keyframes hexSpinCore  { from { transform: rotate(0deg) scale(1);    } to { transform: rotate(360deg) scale(1); } }

@keyframes hexCorePulse {
    0%, 100% { transform: scale(1.0); }
    50%      { transform: scale(1.15); }
}

/* Hero content overlay */
.hero__content {
    position: relative;
    z-index: 5;
    text-align: center;
    padding: 0 4vw;
}

.hero__label {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: clamp(11px, 1vw, 14px);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
    opacity: 0.7;
    margin-bottom: 2vh;
    text-shadow: 0 0 6px var(--c-cyan);
}

.hero__title {
    font-family: 'Commissioner', sans-serif;
    font-weight: 800;
    font-size: 20vw;
    line-height: 0.85;
    letter-spacing: -0.03em;
    color: var(--c-text);
    text-transform: uppercase;
    user-select: none;
    animation: heatDistort 3.2s ease-in-out infinite;
}

.hero__title .char {
    display: inline-block;
    color: var(--c-text);
    text-shadow:
        0 0 var(--glow-blur, 6px) currentColor,
        0 0 calc(var(--glow-blur, 6px) * 2) currentColor;
    animation: charColorCycle 3s linear infinite;
    will-change: color, transform;
}

.hero__title .char:nth-child(8n+1) { animation-delay: 0s;    }
.hero__title .char:nth-child(8n+2) { animation-delay: 0.3s;  }
.hero__title .char:nth-child(8n+3) { animation-delay: 0.6s;  }
.hero__title .char:nth-child(8n+4) { animation-delay: 0.9s;  }
.hero__title .char:nth-child(8n+5) { animation-delay: 1.2s;  }
.hero__title .char:nth-child(8n+6) { animation-delay: 1.5s;  }
.hero__title .char:nth-child(8n+7) { animation-delay: 1.8s;  }
.hero__title .char:nth-child(8n+8) { animation-delay: 2.1s;  }

@keyframes charColorCycle {
    0%, 33%   { color: var(--c-pink);  }
    34%, 66%  { color: var(--c-cyan);  }
    67%, 100% { color: var(--c-chart); }
}

@keyframes heatDistort {
    0%, 100% { transform: translateY(0)     skewX(0deg);   filter: blur(0);    }
    25%      { transform: translateY(-2px)  skewX(-0.4deg); filter: blur(0.4px); }
    50%      { transform: translateY(0)     skewX(0.4deg);  filter: blur(0);    }
    75%      { transform: translateY(2px)   skewX(-0.2deg); filter: blur(0.4px); }
}

.hero__subline {
    margin-top: 3vh;
    font-family: 'Commissioner', sans-serif;
    font-weight: 300;
    font-size: clamp(14px, 1.6vw, 22px);
    color: var(--c-text);
    opacity: 0.85;
    letter-spacing: 0.04em;
}

/* Down-arrow (sharp triangle tip) */
.hero__scroll-arrow {
    margin: 4vh auto 0;
    width: 2px;
    height: 70px;
    position: relative;
    animation: arrowBob 1.8s ease-in-out infinite;
}
.hero__scroll-arrow .arrow-line {
    position: absolute;
    inset: 0 auto 14px 0;
    width: 2px;
    background: var(--c-chart);
    box-shadow: 0 0 8px var(--c-chart);
}
.hero__scroll-arrow .arrow-tip {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 14px solid var(--c-chart);
    filter: drop-shadow(0 0 6px var(--c-chart));
}

@keyframes arrowBob {
    0%, 100% { transform: translateY(0);    opacity: 0.85; }
    50%      { transform: translateY(8px);  opacity: 1;    }
}

/* Hero corner labels */
.hero__corner {
    position: absolute;
    z-index: 4;
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
    opacity: 0.7;
    text-shadow: 0 0 4px var(--c-cyan);
    padding: 1.6vh 1.6vw;
    background: rgba(10, 10, 15, 0.55);
    border-left: 2px solid var(--c-cyan);
}
.hero__corner--tl { top: 3vh;    left: 0;   }
.hero__corner--tr { top: 3vh;    right: 0;  border-left: none; border-right: 2px solid var(--c-pink); color: var(--c-pink); text-shadow: 0 0 4px var(--c-pink); text-align: right; }
.hero__corner--bl { bottom: 3vh; left: 0;   border-left: 2px solid var(--c-chart); color: var(--c-chart); text-shadow: 0 0 4px var(--c-chart); }
.hero__corner--br { bottom: 3vh; right: 0;  border-left: none; border-right: 2px solid var(--c-magenta); color: var(--c-magenta); text-shadow: 0 0 4px var(--c-magenta); text-align: right; }

/* ============================================================
   SAWTOOTH DIVIDERS
   ============================================================ */
.sawtooth {
    position: relative;
    height: var(--sawtooth-h);
    width: 100%;
    pointer-events: none;
    background-color: var(--c-void);
}

.sawtooth::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(135deg, currentColor 25%, transparent 25%),
        linear-gradient(225deg, currentColor 25%, transparent 25%);
    background-size: 24px var(--sawtooth-h);
    background-position: 0 0, 12px 0;
    background-repeat: repeat-x;
    opacity: 0.55;
}

.sawtooth--cyan    { color: var(--c-cyan);    background-color: var(--c-void); }
.sawtooth--pink    { color: var(--c-pink);    background-color: var(--c-reactor-dark); }
.sawtooth--chart   { color: var(--c-chart);   background-color: var(--c-void); }
.sawtooth--magenta { color: var(--c-magenta); background-color: var(--c-reactor-dark); }

/* ============================================================
   ZONE 2 — EXPLAINER
   ============================================================ */
.zone--explainer {
    background: var(--c-reactor-dark);
    min-height: 100vh;
    padding: 14vh 0 18vh;
    clip-path: polygon(0 0, 100% 4vh, 100% 100%, 0 calc(100% - 0vh));
}

.zone2__inner {
    width: 100%;
    max-width: 1280px;
    padding: 0 8vw;
    margin: 0 auto;
    position: relative;
    z-index: 3;
}

.zone2__label {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
    opacity: 0.7;
    margin-bottom: 4vh;
    text-shadow: 0 0 6px var(--c-cyan);
    transform: translateX(-80px);
    opacity: 0;
    transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.9s ease;
}

.zone2__heading {
    font-family: 'Commissioner', sans-serif;
    font-weight: 600;
    font-size: clamp(48px, 7vw, 112px);
    line-height: 0.95;
    letter-spacing: 0.04em;
    color: var(--c-chart);
    text-transform: uppercase;
    text-shadow: 0 0 14px rgba(191, 255, 0, 0.4);
    margin-bottom: 8vh;
    transform: translateX(-120px);
    opacity: 0;
    transition: transform 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.1s, opacity 1s ease 0.1s;
}

.zone2__body {
    max-width: 800px;
    transform: translateX(-100px);
    opacity: 0;
    transition: transform 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s, opacity 1s ease 0.2s;
}

.zone2__para {
    font-family: 'Commissioner', sans-serif;
    font-weight: 300;
    font-size: clamp(18px, 1.6vw, 22px);
    line-height: 1.65;
    color: var(--c-text);
    margin-bottom: 2.4em;
}

.zone2__para em {
    font-style: italic;
    color: var(--c-cyan);
    text-shadow: 0 0 6px var(--c-cyan);
}

.zone2__para strong {
    font-weight: 600;
    color: var(--c-pink);
    text-shadow: 0 0 6px var(--c-pink);
}

/* Reveal */
.zone--explainer.is-visible .zone2__label,
.zone--explainer.is-visible .zone2__heading,
.zone--explainer.is-visible .zone2__body {
    transform: translateX(0);
    opacity: 1;
}
.zone--explainer.is-visible .zone2__label { opacity: 0.7; }

/* ============================================================
   PARTICLES (Zones 2-3 background)
   ============================================================ */
.particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: 16px;
    height: 16px;
    opacity: 0.18;
    animation: particleFloat 8s ease-in-out infinite;
    animation-delay: var(--d, 0s);
    will-change: transform;
}

.particle--tri {
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    background: var(--c-chart);
    box-shadow: 0 0 12px var(--c-chart);
}
.particle--dia {
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
    background: var(--c-cyan);
    width: 14px; height: 14px;
    box-shadow: 0 0 12px var(--c-cyan);
}
.particle--par {
    clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
    background: var(--c-magenta);
    width: 22px; height: 10px;
    box-shadow: 0 0 12px var(--c-magenta);
}

@keyframes particleFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg);    }
    50%      { transform: translate(8px, -14px) rotate(8deg); }
}

/* ============================================================
   ZONE 3 — CORE SAMPLES
   ============================================================ */
.zone--samples {
    background: var(--c-void);
    min-height: 100vh;
    padding: 16vh 0 22vh;
    clip-path: polygon(0 4vh, 100% 0, 100% calc(100% - 0vh), 0 100%);
}

.zone3__header {
    width: 100%;
    max-width: 1280px;
    padding: 0 6vw;
    margin: 0 auto 8vh;
    position: relative;
    z-index: 3;
}

.zone3__label {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
    opacity: 0.7;
    margin-bottom: 3vh;
    text-shadow: 0 0 6px var(--c-cyan);
}

.zone3__heading {
    font-family: 'Commissioner', sans-serif;
    font-weight: 600;
    font-size: clamp(40px, 5.5vw, 88px);
    letter-spacing: 0.08em;
    color: var(--c-chart);
    text-transform: uppercase;
    text-shadow: 0 0 18px rgba(191, 255, 0, 0.45);
}

/* Cascade — staggered diagonal layout */
.zone3__cascade {
    position: relative;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 4vw;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4vh;
}

.sample {
    position: relative;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 0;
    width: 78%;
    padding: 4vh 4vw 4vh 0;
    background: var(--c-reactor-dark);
    clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
    border: 0;
    transform: translateX(120px);
    opacity: 0;
    transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.9s ease;
    will-change: transform, opacity;
}

.sample::before {
    /* Inner border using a slightly inset clip-path layer */
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, var(--c-pink) 0%, var(--c-pink) 100%);
    clip-path: polygon(
        8% 0, 100% 0, 92% 100%, 0 100%,
        0 calc(100% - 2px), 92% calc(100% - 2px),
        100% 2px, 8% 2px
    );
    opacity: 0.4;
    pointer-events: none;
}

.sample--1 { align-self: flex-start; margin-left: 2vw; }
.sample--2 { align-self: flex-end;   margin-right: 2vw; margin-top: -6vh; }
.sample--3 { align-self: flex-start; margin-left: 8vw;  margin-top: -4vh; }

.zone--samples.is-visible .sample {
    transform: translateX(0);
    opacity: 1;
}
.zone--samples.is-visible .sample--1 { transition-delay: 0ms;   }
.zone--samples.is-visible .sample--2 { transition-delay: 150ms; }
.zone--samples.is-visible .sample--3 { transition-delay: 300ms; }

.sample__visual {
    width: 100%;
    height: 100%;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2vh 2vw;
    position: relative;
    z-index: 2;
}

.sample-svg {
    width: 100%;
    max-width: 240px;
    height: auto;
    filter: drop-shadow(0 0 12px rgba(255, 45, 106, 0.4));
}

.vis-shape { stroke-width: 2; fill: transparent; }
.vis-shape--chart { stroke: var(--c-chart); fill: rgba(191, 255, 0, 0.08); }
.vis-shape--cyan  { stroke: var(--c-cyan);  fill: rgba(0, 240, 255, 0.10); }
.vis-shape--pink  { stroke: var(--c-pink);  fill: rgba(255, 45, 106, 0.14); }

.sample__body {
    padding: 1vh 2vw 1vh 0;
    position: relative;
    z-index: 2;
}

.sample__index {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.2em;
    color: var(--c-cyan);
    text-shadow: 0 0 6px var(--c-cyan);
    opacity: 0.7;
    margin-bottom: 1.6vh;
    text-transform: uppercase;
}

.sample__title {
    font-family: 'Commissioner', sans-serif;
    font-weight: 800;
    font-size: clamp(32px, 3.4vw, 56px);
    letter-spacing: -0.02em;
    line-height: 1;
    color: var(--c-text);
    text-transform: uppercase;
    margin-bottom: 2vh;
    text-shadow: 0 0 14px rgba(232, 224, 240, 0.18);
}

.sample__copy {
    font-family: 'Commissioner', sans-serif;
    font-weight: 300;
    font-size: clamp(15px, 1.2vw, 19px);
    line-height: 1.6;
    color: var(--c-text);
    max-width: 52ch;
    margin-bottom: 3vh;
}

.sample__meta {
    display: flex;
    gap: 1.5em;
    flex-wrap: wrap;
}

.sample__meta-item {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-chart);
    text-shadow: 0 0 6px var(--c-chart);
    padding: 0.6em 1em;
    background: var(--c-void);
    clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
}

/* ============================================================
   ZONE 4 — SIGNAL
   ============================================================ */
.zone--signal {
    background: var(--c-reactor-dark);
    min-height: 100vh;
    padding: 18vh 6vw 22vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    clip-path: polygon(0 0, 100% 4vh, 100% 100%, 0 100%);
    position: relative;
}

.zone4__label {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
    opacity: 0.7;
    margin-bottom: 6vh;
    text-shadow: 0 0 6px var(--c-cyan);
}

.signal__text {
    font-family: 'Commissioner', sans-serif;
    font-weight: 800;
    font-size: clamp(40px, 6.5vw, 112px);
    line-height: 1;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    color: var(--c-text);
    display: flex;
    flex-direction: column;
    gap: 1vh;
}

.signal__line {
    display: block;
}

.signal__word {
    display: inline-block;
    margin-right: 0.4em;
    color: var(--c-text);
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
    text-shadow:
        0 0 10px currentColor,
        0 0 30px currentColor;
    animation: wordFlicker 5.5s linear infinite;
    animation-play-state: paused;
}

.zone--signal.is-visible .signal__word {
    opacity: 1;
    transform: translateX(0);
    animation-play-state: running;
}

/* per-word stagger reveal */
.zone--signal.is-visible .signal__word:nth-child(1)  { transition-delay: 0.05s; animation-delay: 0s;    }
.zone--signal.is-visible .signal__word:nth-child(2)  { transition-delay: 0.15s; animation-delay: 0.4s;  }
.zone--signal.is-visible .signal__word:nth-child(3)  { transition-delay: 0.25s; animation-delay: 0.8s;  }
.zone--signal.is-visible .signal__word:nth-child(4)  { transition-delay: 0.35s; animation-delay: 1.2s;  }
.zone--signal.is-visible .signal__word:nth-child(5)  { transition-delay: 0.45s; animation-delay: 1.6s;  }
.zone--signal.is-visible .signal__word:nth-child(6)  { transition-delay: 0.55s; animation-delay: 2.0s;  }
.zone--signal.is-visible .signal__word:nth-child(7)  { transition-delay: 0.65s; animation-delay: 2.4s;  }
.zone--signal.is-visible .signal__word:nth-child(8)  { transition-delay: 0.75s; animation-delay: 2.8s;  }

@keyframes wordFlicker {
    0%, 100% { color: var(--c-pink);  }
    33%      { color: var(--c-cyan);  }
    66%      { color: var(--c-chart); }
}

/* ============================================================
   ZONE 5 — FOOTER
   ============================================================ */
.zone--footer {
    background: var(--c-black);
    padding: 6vh 6vw 8vh;
    position: relative;
    min-height: 50vh;
}

.footer__neon-line {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 1px;
    background: var(--c-cyan);
    box-shadow: 0 0 10px var(--c-cyan), 0 0 20px var(--c-cyan);
}

.footer__inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 4vh 2vw;
    align-items: end;
    padding-top: 6vh;
}

.footer__domain {
    font-family: 'Commissioner', sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 4vw, 56px);
    letter-spacing: -0.02em;
    color: var(--c-text);
    text-shadow: 0 0 18px rgba(191, 255, 0, 0.25);
    grid-column: 1;
    grid-row: 1;
}

.footer__year {
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.2em;
    color: var(--c-text-dim);
    text-align: right;
    grid-column: 2;
    grid-row: 1;
}

.footer__shapes {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    gap: 2vw;
    align-items: center;
}

.footer-shape {
    display: inline-block;
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

.footer-shape--tri {
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    background: var(--c-pink);
    box-shadow: 0 0 12px var(--c-pink);
}

.footer-shape--dia {
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
    background: var(--c-cyan);
    box-shadow: 0 0 12px var(--c-cyan);
}

.footer-shape--par {
    clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
    background: var(--c-chart);
    box-shadow: 0 0 12px var(--c-chart);
    width: 28px;
}

.footer__credit {
    grid-column: 2;
    grid-row: 2;
    font-family: 'Commissioner', sans-serif;
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-text-dim);
    text-align: right;
}

/* ============================================================
   GLOW INTENSITY (driven by JS via --glow-blur on each zone)
   ============================================================ */
.zone--hero      { --glow-blur: 4px;  }
.zone--explainer { --glow-blur: 10px; }
.zone--samples   { --glow-blur: 20px; }
.zone--signal    { --glow-blur: 30px; }
.zone--footer    { --glow-blur: 40px; }

/* ============================================================
   PARTICLE SCROLL DRIFT — JS sets --scroll-y on <body>
   ============================================================ */
body {
    --scroll-y: 0px;
}
.particle {
    transform: translateY(calc(var(--scroll-y, 0px) * -0.3));
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .hero__title { font-size: 28vw; }

    .reactor-core {
        width: 95vw;
        height: 95vw;
    }

    .zone--samples { padding: 12vh 0 18vh; }

    .zone3__cascade { padding: 0 5vw; }

    .sample {
        width: 100%;
        grid-template-columns: 1fr;
        margin-left: 0 !important;
        margin-right: 0 !important;
        margin-top: 0 !important;
        clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
    }

    .sample__visual { padding: 4vh 6vw 0; }
    .sample__body   { padding: 0 6vw 4vh; }

    .zone2__inner { padding: 0 6vw; }

    .signal__text { font-size: 10vw; }

    :root { --sawtooth-h: 24px; }

    /* halve glow on mobile */
    .zone--hero      { --glow-blur: 2px;  }
    .zone--explainer { --glow-blur: 5px;  }
    .zone--samples   { --glow-blur: 10px; }
    .zone--signal    { --glow-blur: 15px; }
    .zone--footer    { --glow-blur: 20px; }

    .footer__inner {
        grid-template-columns: 1fr;
    }
    .footer__year, .footer__credit { text-align: left; grid-column: 1; }
    .footer__domain  { grid-row: 1; }
    .footer__year    { grid-row: 2; }
    .footer__shapes  { grid-row: 3; }
    .footer__credit  { grid-row: 4; }
}