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

body {
    display: flex;
    justify-content: center;
    margin-right: 0;
    height: 100vh;
    width: 100vw;
}

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --ink: #14232b;
    --muted: #718087;
    --paper: #f4f0e8;
    --panel: #fbfaf6;
    --line: #d8d5cc;
    --coral: #f26b52;
    --yellow: #f4c95d;
    --teal: #4fb5a5;
    --blue: #6ea8d8;
    --lilac: #b9a2d8;
    --tile-size: clamp(64px, 4.8vw, 78px);
    --gap: clamp(4px, .55vw, 8px);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--paper);
}

body {
    margin: 0;
    min-width: 320px;
    color: var(--ink);
    background: var(--paper);
    font-family: 'Space Grotesk', sans-serif;
}

button,
input {
    font: inherit;
}

button {
    color: inherit;
}

.app-shell {
    width: min(1480px, calc(100% - 72px));
    margin: 0 auto;
    padding: 34px 0 28px;
}

.masthead,
.intro-row,
.controls,
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.masthead {
    border-bottom: 1px solid var(--line);
    padding-bottom: 22px;
}

.brand-lockup {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: #fff;
    background: var(--ink);
    border-radius: 50%;
    font: 500 14px 'DM Mono', monospace;
}

.eyebrow,
.section-kicker,
.drawer-label {
    margin: 0;
    color: var(--coral);
    font: 500 10px 'DM Mono', monospace;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.masthead h1 {
    margin: 2px 0 0;
    font-size: 17px;
    letter-spacing: -.04em;
}

.masthead h1 em {
    color: var(--coral);
    font-style: normal;
}

.author-credit {
    color: var(--muted);
    font-size: 12px;
}

.author-credit strong {
    color: var(--ink);
    font-weight: 600;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 18px;
}

.language-switch {
    display: flex;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--panel);
}

.language-option {
    min-width: 31px;
    padding: 5px 7px;
    border: 0;
    border-radius: 14px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font: 10px 'DM Mono', monospace;
}

.language-option.active,
.language-option:hover {
    color: var(--panel);
    background: var(--ink);
}

.intro-row {
    align-items: flex-end;
    padding: 66px 3px 48px;
}

.intro-row h2 {
    margin: 12px 0 0;
    font-size: clamp(38px, 5vw, 76px);
    line-height: .94;
    letter-spacing: -.075em;
}

.intro-row h2 span {
    color: var(--coral);
}

.intro-copy {
    width: 290px;
    margin-bottom: 3px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.65;
}

.stats {
    display: flex;
    gap: 18px;
    margin-top: 20px;
    color: var(--ink);
    font: 10px 'DM Mono', monospace;
}

.stats strong {
    margin-right: 5px;
    color: var(--coral);
}

.controls {
    align-items: stretch;
    gap: 24px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.search-box {
    display: flex;
    align-items: center;
    width: min(380px, 100%);
    padding: 0 12px;
    border: 1px solid var(--line);
    background: var(--panel);
}

.search-box span {
    color: var(--coral);
    font-size: 25px;
    line-height: 1;
    transform: rotate(-20deg);
}

.search-box input {
    width: 100%;
    padding: 12px 10px;
    border: 0;
    outline: 0;
    color: var(--ink);
    background: transparent;
    font-size: 12px;
}

.search-box input::placeholder {
    color: #9aa3a5;
}

.search-box kbd {
    padding: 3px 6px;
    border: 1px solid var(--line);
    color: var(--muted);
    font: 10px 'DM Mono', monospace;
}

.filter-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-label {
    color: var(--muted);
    font: 10px 'DM Mono', monospace;
    text-transform: uppercase;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}

.filter {
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 30px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font-size: 11px;
    transition: .2s ease;
}

.filter:hover,
.filter.active {
    border-color: var(--ink);
    color: var(--panel);
    background: var(--ink);
}

.table-wrap {
    position: relative;
    overflow-x: hidden;
    padding: 42px 0 10px;
}

.periodic-table,
.series-table {
    display: grid;
    grid-template-columns: repeat(18, minmax(0, 1fr));
    gap: var(--gap);
    width: 100%;
}

.periodic-table {
    grid-template-rows: repeat(7, var(--tile-size));
}

.group-labels {
    position: absolute;
    top: 17px;
    left: 0;
    display: grid;
    grid-template-columns: repeat(18, minmax(0, 1fr));
    gap: var(--gap);
    width: 100%;
    color: #a2aaa9;
    font: 9px 'DM Mono', monospace;
    text-align: center;
}

.element-tile {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    height: var(--tile-size);
    padding: 7px;
    border: 1px solid transparent;
    border-radius: 2px;
    color: var(--ink);
    cursor: pointer;
    text-align: left;
    transition: transform .22s ease, box-shadow .22s ease, opacity .22s ease, filter .22s ease;
}

.element-tile:hover,
.element-tile:focus-visible {
    z-index: 2;
    transform: scale(1.09);
    outline: none;
    box-shadow: 0 12px 24px #14232b25;
}

.element-tile:focus-visible {
    border-color: var(--ink);
}

.element-tile .atomic-number {
    font: 9px 'DM Mono', monospace;
    opacity: .7;
}

.element-tile strong {
    align-self: center;
    font-size: clamp(22px, 2.3vw, 34px);
    letter-spacing: -.08em;
}

.element-name {
    overflow: visible;
    color: #263a40;
    font-size: clamp(6px, .7vw, 10px);
    line-height: 1;
    text-align: center;
    white-space: normal;
    overflow-wrap: break-word;
    max-height: none;
}

.atomic-weight {
    overflow: hidden;
    color: #52676d;
    font: 8px 'DM Mono', monospace;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nonmetal {
    background: #bfe1d6;
}

.noble-gas {
    background: #f1c8b8;
}

.metalloid {
    background: #d9cf9b;
}

.metal {
    background: #b9d3e7;
}

.radioactive {
    background: #d2c0e2;
}

.element-tile.dimmed {
    opacity: .16;
    filter: grayscale(.7);
}

.series-labels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-width: 1050px;
    width: 100%;
    padding: 24px 0 8px;
    color: var(--muted);
    font: 10px 'DM Mono', monospace;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.series-labels span:last-child {
    padding-left: 8px;
}

.series-table {
    grid-template-rows: repeat(2, var(--tile-size));
    padding-left: calc((100% - (17 * var(--gap))) / 18 + var(--gap));
}

.series-table .element-tile {
    grid-row: auto;
}

.series-section {
    width: 100%;
}

.series-label {
    padding: 24px 0 8px calc(var(--tile-size) * 2 + var(--gap) * 2);
    color: var(--muted);
    font: 10px 'DM Mono', monospace;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.series-row {
    display: grid;
    grid-template-columns: repeat(14, minmax(0, 1fr));
    gap: var(--gap);
    width: 100%;
    padding-left: calc(var(--tile-size) * 2 + var(--gap) * 2);
    grid-auto-rows: var(--tile-size);
}

.footer {
    align-items: flex-start;
    gap: 20px;
    padding-top: 34px;
    color: var(--muted);
    font: 10px 'DM Mono', monospace;
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.legend span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.swatch {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.swatch.radioactive {
    background: var(--lilac);
}

.footer p {
    margin: 0;
    white-space: nowrap;
}

.footer p span {
    color: var(--coral);
}

.element-drawer {
    position: fixed;
    z-index: 10;
    top: 0;
    right: 0;
    display: flex;
    width: min(450px, 92vw);
    height: 100vh;
    padding: 52px;
    overflow-y: auto;
    background: #1b3036;
    color: #f4f0e8;
    transform: translateX(100%);
    transition: transform .4s cubic-bezier(.76, 0, .24, 1);
}

.element-drawer.open {
    transform: translateX(0);
}

.drawer-content {
    position: relative;
    z-index: 1;
    width: 100%;
    margin-top: 40px;
}

.drawer-label {
    color: var(--yellow);
}

.drawer-symbol {
    margin: 45px 0 4px;
    color: var(--yellow);
    font-size: 126px;
    font-weight: 600;
    letter-spacing: -.12em;
    line-height: .8;
}

.drawer-number {
    color: #86a0a2;
    font: 10px 'DM Mono', monospace;
    letter-spacing: .08em;
}

.element-drawer h2 {
    margin: 25px 0 5px;
    font-size: 36px;
    letter-spacing: -.06em;
}

.drawer-category {
    display: inline-block;
    margin: 0;
    padding: 5px 9px;
    border: 1px solid #668084;
    color: #dce9e3;
    font: 10px 'DM Mono', monospace;
    text-transform: uppercase;
}

.atom-stage {
    position: relative;
    display: grid;
    place-items: center;
    height: 190px;
    margin: 28px 0 0;
    overflow: hidden;
    border-top: 1px solid #456168;
    border-bottom: 1px solid #456168;
}

.atom-model {
    position: relative;
    width: 144px;
    height: 144px;
}

.atom-model::before {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 2;
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border: 2px solid var(--yellow);
    border-radius: 50%;
    color: var(--yellow);
    background: #1b3036;
    content: 'n+';
    font: 9px 'DM Mono', monospace;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 20px #f4c95d66;
}

.electron-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: var(--orbit-size);
    height: var(--orbit-size);
    border: 1px solid #86a0a266;
    border-radius: 50%;
    animation: orbit-spin var(--orbit-speed) linear infinite;
    transform: translate(-50%, -50%) rotateX(var(--orbit-tilt, 0deg)) rotateY(var(--orbit-twist, 0deg));
    transform-style: preserve-3d;
}

.electron {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 7px;
    height: 7px;
    border: 1px solid #1b3036;
    border-radius: 50%;
    background: var(--coral);
    box-shadow: 0 0 10px #f26b52cc;
    transform: rotate(var(--electron-angle)) translateY(calc(var(--orbit-size) / -2));
}

@keyframes orbit-spin {
    to {
        transform: translate(-50%, -50%) rotateX(var(--orbit-tilt, 0deg)) rotateY(var(--orbit-twist, 0deg)) rotate(360deg);
    }
}

.atom-caption {
    position: absolute;
    right: 0;
    bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    color: #86a0a2;
    font: 9px 'DM Mono', monospace;
}

.pulse-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--coral);
    animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
    50% {
        opacity: .35;
        transform: scale(.7);
    }
}

.configuration-block {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 0 0;
}

.configuration-block>div {
    min-width: 0;
}

.configuration-block span {
    color: #86a0a2;
    font: 10px 'DM Mono', monospace;
}

.configuration-block strong {
    display: block;
    margin-top: 8px;
    color: var(--yellow);
    font: 500 17px 'DM Mono', monospace;
    line-height: 1.65;
}

.configuration-block sup {
    font-size: 9px;
}

.open-config {
    flex: 0 0 auto;
    padding: 7px 9px;
    border: 1px solid #668084;
    color: #dce9e3;
    background: transparent;
    cursor: pointer;
    font: 9px 'DM Mono', monospace;
    text-transform: uppercase;
}

.open-config:hover {
    border-color: var(--yellow);
    color: var(--yellow);
}

.open-atom {
    width: 100%;
    margin-top: 12px;
    padding: 10px 12px;
    border: 1px solid #668084;
    color: #dce9e3;
    background: transparent;
    cursor: pointer;
    font: 10px 'DM Mono', monospace;
    text-align: left;
    text-transform: uppercase;
}

.open-atom:hover {
    border-color: var(--coral);
    color: var(--coral);
}

.configuration-window {
    position: fixed;
    z-index: 12;
    top: 50%;
    right: 32px;
    width: min(680px, calc(100vw - 64px));
    min-height: 360px;
    padding: 46px 52px;
    border: 1px solid #668084;
    background: #1b3036;
    color: #f4f0e8;
    box-shadow: 0 24px 70px #14232b66;
    opacity: 0;
    pointer-events: none;
    transform: translate(30px, -50%);
    transition: opacity .3s ease, transform .3s ease;
}

.configuration-window.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(0, -50%);
}

.configuration-symbol {
    margin-top: 32px;
    color: var(--yellow);
    font-size: 70px;
    font-weight: 600;
    letter-spacing: -.1em;
    line-height: .8;
}

.large-configuration {
    margin-top: 50px;
    color: var(--yellow);
    font: 500 clamp(20px, 3vw, 38px) 'DM Mono', monospace;
    line-height: 1.8;
}

.large-configuration sup {
    font-size: .55em;
}

.configuration-help {
    margin: 20px 0 0;
    color: #86a0a2;
    font: 10px 'DM Mono', monospace;
}

.atom-window {
    position: fixed;
    z-index: 12;
    top: 50%;
    right: 32px;
    width: min(680px, calc(100vw - 64px));
    min-height: 560px;
    max-height: calc(100vh - 28px);
    padding: 46px 52px;
    overflow-y: auto;
    border: 1px solid #668084;
    background: #1b3036;
    color: #f4f0e8;
    box-shadow: 0 24px 70px #14232b66;
    opacity: 0;
    pointer-events: none;
    transform: translate(30px, -50%);
    transition: opacity .3s ease, transform .3s ease;
}

.atom-window.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(0, -50%);
}

.atom-window-heading {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-top: 30px;
}

.atom-window-heading .configuration-symbol {
    margin: 0;
}

.atom-window-heading h2 {
    margin: 0 0 8px;
    font-size: 30px;
    letter-spacing: -.06em;
}

.atom-stage-large {
    height: 300px;
    margin-top: 30px;
}

.atom-model-large {
    width: 250px;
    height: 250px;
    overflow: hidden;
    cursor: grab;
}

.atom-model-large.dragging {
    cursor: grabbing;
}

.atom-model-large canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.atom-model-large .electron-orbit {
    border-color: #86a0a299;
}

.atom-model-large .electron {
    width: 10px;
    height: 10px;
}

.atom-model-large::before {
    display: none;
}

.atom-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-top: 10px;
    border-top: 1px solid #456168;
    border-bottom: 1px solid #456168;
}

.atom-facts div {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px 0;
}

.atom-facts div+div {
    padding-left: 18px;
    border-left: 1px solid #456168;
}

.atom-facts span {
    color: #86a0a2;
    font: 10px 'DM Mono', monospace;
}

.atom-facts strong {
    color: var(--yellow);
    font-size: 18px;
    font-weight: 500;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    margin-top: 58px;
    border-top: 1px solid #456168;
    border-bottom: 1px solid #456168;
}

.detail-grid div {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px 0;
}

.detail-grid div:nth-child(odd) {
    border-right: 1px solid #456168;
}

.detail-grid span {
    color: #86a0a2;
    font: 10px 'DM Mono', monospace;
}

.detail-grid strong {
    color: #f4f0e8;
    font-size: 22px;
    font-weight: 500;
}

.drawer-note {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    color: #b5c7c5;
    font-size: 13px;
    line-height: 1.55;
}

.drawer-note p {
    margin: 0;
}

.note-line {
    display: block;
    flex: 0 0 3px;
    height: 40px;
    background: var(--coral);
}

.close-drawer {
    position: absolute;
    z-index: 2;
    top: 24px;
    right: 30px;
    width: 35px;
    height: 35px;
    border: 1px solid #668084;
    border-radius: 50%;
    color: #f4f0e8;
    background: transparent;
    cursor: pointer;
    font-size: 23px;
    line-height: 1;
}

.close-drawer:hover {
    border-color: var(--yellow);
    color: var(--yellow);
}

.drawer-glow {
    position: absolute;
    top: 120px;
    right: -100px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: #f4c95d18;
    filter: blur(35px);
}

.drawer-backdrop {
    position: fixed;
    z-index: 9;
    inset: 0;
    background: #14232b66;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

.drawer-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 900px) {
    :root {
        --tile-size: 58px;
        --gap: 4px;
    }

    .app-shell {
        width: min(100% - 36px, 680px);
        padding-top: 22px;
    }

    .intro-row {
        display: block;
        padding: 48px 0 34px;
    }

    .intro-copy {
        width: min(100%, 420px);
        margin-top: 24px;
    }

    .controls {
        display: block;
    }

    .search-box {
        width: 100%;
    }

    .filter-wrap {
        align-items: flex-start;
        display: block;
        margin-top: 15px;
    }

    .filters {
        justify-content: flex-start;
        margin-top: 10px;
    }

    .table-wrap {
        margin-right: 0;
        overflow-x: auto;
        padding-bottom: 16px;
        scrollbar-width: auto;
    }

    .table-wrap::-webkit-scrollbar {
        height: 11px;
    }

    .table-wrap::-webkit-scrollbar-track {
        background: #d8d5cc;
    }

    .table-wrap::-webkit-scrollbar-thumb {
        border: 2px solid #d8d5cc;
        border-radius: 10px;
        background: var(--ink);
    }

    .periodic-table,
    .group-labels,
    .series-section,
    .series-row {
        width: 1120px;
        min-width: 1120px;
    }

    .element-tile {
        padding: 7px;
    }

    .element-tile .atomic-number,
    .atomic-weight {
        font-size: 9px;
    }

    .element-tile strong {
        font-size: 22px;
    }

    .element-name {
        max-height: none;
        overflow: visible;
        font-size: 8px;
    }

    .footer {
        display: block;
    }

    .footer p {
        margin-top: 18px;
    }
}

@media (max-width: 520px) {
    .app-shell {
        width: calc(100% - 28px);
    }

    .author-credit {
        max-width: 130px;
        text-align: right;
        font-size: 10px;
    }

    .header-tools {
        align-items: flex-end;
        flex-direction: column-reverse;
        gap: 8px;
    }

    .intro-row h2 {
        font-size: 44px;
    }

    .stats {
        display: block;
        line-height: 2;
    }

    .stats span {
        display: block;
    }

    .element-drawer {
        padding: 34px;
    }

    .drawer-content {
        margin-top: 38px;
    }

    .drawer-symbol {
        margin-top: 38px;
        font-size: 100px;
    }

    .element-drawer h2 {
        font-size: 30px;
    }

    .configuration-window {
        right: 14px;
        width: calc(100vw - 28px);
        padding: 36px 28px;
    }

    .atom-window {
        right: 14px;
        width: calc(100vw - 28px);
        min-height: 500px;
        padding: 36px 28px;
    }

    .large-configuration {
        margin-top: 34px;
        font-size: 18px;
    }

    .atom-window-heading h2 {
        font-size: 25px;
    }

    .atom-stage-large {
        height: 250px;
    }
}

.tableTop {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: grid;
}

.column {
    display: flex;
    align-items: center;
    flex-direction: column;

}


/* ___________________S-Block________________ */


.sBlock {
    display: flex;
    align-items: self-end;

}

/* ___________________D-Block________________ */

.grid {
    display: flex;
    align-items: flex-start;
    flex-direction: grid;
}

.dBlock {
    display: flex;
    align-items: center;
    flex-direction: column;
    margin-top: 150px;
}


.type3d {
    display: flex;
    align-items: center;
    flex-direction: grid;
}



.box {
    display: flex;
    width: 50px;
    height: 50px;
    background-color: red;
    align-items: center;
    justify-content: center;
    text-align: center;
    border: 1px solid black;
    padding: 10px;
}

.pBlock {
    display: flex;
    align-items: flex-end;
    flex-direction: grid;

}


.empty {
    width: 50px;
    height: 50px;
    background-color: white;
    border: none;
}

.box:hover {
    background-color: blue;
    color: white;
    height: 100px;
    width: 100px;
}

h1 {
    font-size: 25px;
    margin: 0;
    height: 100%;
    width: 100%;
}

.model-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 30px;
    padding: 9px 0;
    border-top: 1px solid #456168;
    border-bottom: 1px solid #456168;
}

.layer-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.layer-tab {
    padding: 6px 8px;
    border: 1px solid transparent;
    color: #86a0a2;
    background: transparent;
    cursor: pointer;
    font: 9px 'DM Mono', monospace;
    text-transform: uppercase;
}

.layer-tab:hover,
.layer-tab.active {
    border-color: #668084;
    color: var(--yellow);
}

.zoom-control {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #86a0a2;
    font: 9px 'DM Mono', monospace;
    white-space: nowrap;
}

.zoom-control input {
    width: 82px;
    accent-color: var(--coral);
}

.zoom-control output {
    min-width: 34px;
    color: var(--yellow);
    text-align: right;
}

.model-hint {
    margin: 10px 0 0;
    color: #86a0a2;
    font: 9px 'DM Mono', monospace;
    text-align: center;
}

.atom-model-large[data-layer="subshells"] .electron-orbit {
    border-style: dashed;
}

.atom-model-large[data-layer="subshells"] .electron-orbit:nth-child(even) {
    border-color: var(--coral);
    --orbit-tilt: 66deg;
    --orbit-twist: 24deg;
}

.atom-model-large[data-layer="orbitals"] .electron-orbit {
    border-width: 2px;
    box-shadow: 0 0 12px #86a0a233;
}

.atom-model-large[data-layer="orbitals"] .electron-orbit::after {
    position: absolute;
    inset: 18%;
    border: 1px dotted #f4c95d66;
    border-radius: 50%;
    content: '';
    transform: rotateY(90deg);
}

.atom-model-large[data-layer="electrons"] .electron-orbit {
    opacity: .28;
}

.atom-model-large[data-layer="electrons"] .electron {
    width: 13px;
    height: 13px;
    box-shadow: 0 0 18px #f26b52;
}