.setup-section {
    box-sizing: border-box;
    position: relative;
    padding: clamp(46px, 6vw, 88px) var(--section-padding-x);
    scroll-margin-top: 120px;
}

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

.setup-section__shell {
    width: min(100%, var(--container));
    margin: 0 auto;
    padding: clamp(28px, 4vw, 58px);
    overflow: hidden;
    border: 1px solid rgba(76, 229, 128, .2);
    border-radius: 28px;
    background:
        radial-gradient(circle at 100% 0, rgba(76, 229, 128, .11), transparent 34%),
        linear-gradient(145deg, rgba(8, 27, 16, .96), rgba(4, 13, 8, .98));
    box-shadow: 0 28px 70px rgba(0, 0, 0, .28), inset 0 1px rgba(255, 255, 255, .035);
}

.setup-section__heading { max-width: 720px; }
.setup-section__eyebrow,
.setup-section__config-heading span {
    color: var(--primary);
    font: 800 11px/1 var(--font-tech);
    letter-spacing: .2em;
    text-transform: uppercase;
}
.setup-section__heading h2,
.setup-section__config-heading h3 {
    margin: 12px 0 0;
    color: var(--text);
    font: 900 clamp(34px, 4.4vw, 62px)/.95 var(--font-heading);
    letter-spacing: -.035em;
    text-transform: uppercase;
}
.setup-section__heading p {
    margin: 18px 0 0;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.65;
}

.setup-section__specs {
    margin-top: 38px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.setup-section__spec-card,
.setup-section__config-card {
    min-width: 0;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 18px;
    background: rgba(2, 10, 6, .64);
}
.setup-section__card-title,
.setup-section__config-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}
.setup-section__card-title span,
.setup-section__config-title span {
    color: var(--primary);
    font: 800 10px/1 var(--font-tech);
    letter-spacing: .12em;
    text-transform: uppercase;
}
.setup-section__card-title h3,
.setup-section__config-title h4 {
    margin: 0;
    color: var(--text);
    font: 850 16px/1.1 var(--font-heading);
    letter-spacing: .04em;
    text-transform: uppercase;
}
.setup-section__rows { margin-top: 18px; }
.setup-section__row {
    min-height: 44px;
    padding: 10px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .065);
}
.setup-section__row:last-child { border-bottom: 0; }
.setup-section__row span {
    color: rgba(176, 203, 187, .62);
    font: 750 11px/1.3 var(--font-tech);
    letter-spacing: .09em;
    text-transform: uppercase;
}
.setup-section__row strong {
    color: var(--text);
    font-size: 14px;
    line-height: 1.35;
    font-weight: 800;
    text-align: right;
}
.setup-section__config-heading { margin-top: clamp(48px, 6vw, 78px); }
.setup-section__config-heading h3 { font-size: clamp(32px, 4vw, 52px); }
.setup-section__config-grid {
    margin-top: 24px;
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) repeat(2, minmax(220px, .8fr));
    gap: 18px;
}
.setup-section__config-card { min-height: 290px; }
.setup-section__crosshair-preview {
    position: relative;
    min-height: 138px;
    margin-top: 18px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: 13px;
    background:
        linear-gradient(135deg, rgba(76, 229, 128, .025), transparent),
        repeating-linear-gradient(45deg, rgba(255,255,255,.018) 0 1px, transparent 1px 8px),
        #07110b;
}
.setup-section__crosshair-preview img {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 72px;
    height: 72px;
    object-fit: contain;
    image-rendering: pixelated;
    filter: drop-shadow(0 0 9px rgba(76, 229, 128, .26));
    transform: translate(-50%, -50%);
}
.setup-section__code {
    margin-top: 12px;
    padding: 10px 10px 10px 13px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-radius: 11px;
    background: #020604;
}
.setup-section__code code {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    color: #9ff8bd;
    font-size: 12px;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.setup-section__code button {
    min-height: 34px;
    padding: 0 13px;
    border: 1px solid rgba(76, 229, 128, .3);
    border-radius: 8px;
    color: #061109;
    background: var(--primary);
    font: 850 12px/1 var(--font-ui);
    cursor: pointer;
}
.setup-section__code button:hover { background: var(--primary-hover); }
.setup-section__code button:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.setup-section__code button:disabled { opacity: .45; cursor: not-allowed; }

@media (max-width: 980px) {
    .setup-section__config-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .setup-section__config-card--crosshair { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
    .setup-section { padding-left: 13px; padding-right: 13px; }
    .setup-section__shell { padding: 25px 17px; border-radius: 21px; }
    .setup-section__specs,
    .setup-section__config-grid { grid-template-columns: 1fr; gap: 12px; }
    .setup-section__config-card--crosshair { grid-column: auto; }
    .setup-section__spec-card,
    .setup-section__config-card { padding: 19px; }
    .setup-section__row { align-items: flex-start; }
    .setup-section__row span { font-size: 10px; }
    .setup-section__row strong { max-width: 58%; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
    .setup-section__code button { transition: none; }
}