.calculator-body {
    background:
        radial-gradient(circle at 15% -10%, rgba(59, 130, 246, 0.24), transparent 44%),
        radial-gradient(circle at 100% 0%, rgba(245, 158, 11, 0.2), transparent 36%),
        linear-gradient(180deg, #031024 0%, #071126 46%, #081733 100%);
    color: #e5edf9;
}

.calculator-shell {
    width: min(100%, 76rem);
    margin: 0 auto 2.5rem;
}

.calculator-hero {
    display: grid;
    justify-items: center;
    gap: 0.65rem;
    text-align: center;
    margin-top: 0.4rem;
}

.calculator-hero h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1;
}

.calculator-hero p {
    margin: 0;
    max-width: 54rem;
    color: #c9d8ee;
    font-size: 1rem;
    line-height: 1.6;
}

.calculator-hero p a {
    color: #fde68a;
    font-weight: 800;
}

.calculator-balance {
    margin: 1.35rem auto 0;
    width: min(100%, 58rem);
}

.calculator-balance__top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.55rem;
}

.calculator-balance__top strong {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
}

.calculator-balance__top span {
    color: #c9d8ee;
    font-weight: 700;
}

.calculator-balance__bar {
    position: relative;
    height: 2.2rem;
    background: rgba(15, 23, 42, 0.68);
    border: 1px solid rgba(96, 165, 250, 0.42);
    border-radius: 999px;
    overflow: hidden;
}

.calculator-balance__fill {
    position: absolute;
    inset: 0;
    width: 50%;
    background: linear-gradient(90deg, #ef4444, #f59e0b 45%, #22c55e);
    border-radius: inherit;
    transition: width 220ms ease;
}

.calculator-balance__pct {
    position: absolute;
    top: 50%;
    z-index: 1;
    transform: translateY(-50%);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 800;
}

.calculator-balance__pct--left { left: 0.75rem; }
.calculator-balance__pct--right { right: 0.75rem; }

.calculator-board {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.35rem;
}

.calc-side {
    position: relative;
    z-index: 2;
    isolation: isolate;
    overflow: hidden;
    padding: 0.85rem;
    background: linear-gradient(160deg, rgba(11, 28, 56, 0.92), rgba(8, 36, 70, 0.95));
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: 1.2rem;
}

.calc-side::before {
    content:
        "RBXSITE.COM .gg/RBXSITE                      RBXSITE.COM .gg/RBXSITE\A"
        "            RBXSITE.COM .gg/RBXSITE                      RBXSITE.COM .gg/RBXSITE\A"
        "RBXSITE.COM .gg/RBXSITE                      RBXSITE.COM .gg/RBXSITE\A"
        "            RBXSITE.COM .gg/RBXSITE                      RBXSITE.COM .gg/RBXSITE";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    pointer-events: none;
    color: rgba(226, 232, 240, 0.28);
    font-size: clamp(0.86rem, 1.18vw, 1.08rem);
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-shadow:
        0 1px 0 rgba(2, 6, 23, 0.55),
        0 0 1px rgba(2, 6, 23, 0.45);
    transform: translateY(98px) rotate(-8deg) scale(1.16);
    text-align: center;
    line-height: 2.95;
    white-space: pre;
    z-index: 0;
}

.calc-side > * {
    position: relative;
    z-index: 1;
}

.calc-side h2 {
    margin: 0 0 0.6rem;
    text-align: center;
    font-size: 1.8rem;
}

.calc-side__stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.45rem;
    padding: 0.6rem;
    background: rgba(3, 18, 40, 0.75);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 0.88rem;
}

.calc-side__stats span {
    display: grid;
    gap: 0.15rem;
    text-align: center;
}

.calc-side__stats em {
    color: #b9ceec;
    font-style: normal;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.calc-side__stats strong {
    color: #f8fbff;
    font-size: 1.05rem;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
    margin-top: 0.65rem;
}

.calc-slot {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 7.2rem;
    background: rgba(3, 26, 53, 0.9);
    border: 1px solid rgba(56, 189, 248, 0.28);
    border-radius: 0.85rem;
    overflow: hidden;
}

.calc-slot[data-empty="true"] {
    cursor: pointer;
}

.calc-slot[data-empty="true"]:hover,
.calc-slot[data-empty="true"]:focus-visible {
    border-color: rgba(125, 211, 252, 0.55);
    box-shadow: inset 0 0 0 1px rgba(125, 211, 252, 0.3);
}

.calc-slot[data-empty="true"]::after {
    content: "+";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(219, 234, 254, 0);
    font-size: 2.5rem;
    font-weight: 800;
    transition: color 140ms ease;
    pointer-events: none;
}

.calc-slot[data-empty="true"]:hover::after,
.calc-slot[data-empty="true"]:focus-visible::after {
    color: rgba(219, 234, 254, 0.9);
}

.calc-item {
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-rows: 1fr auto auto auto;
    align-items: center;
    justify-items: center;
    padding: 0.5rem;
}

.calc-item__art {
    display: grid;
    place-items: center;
    width: 3.35rem;
    height: 3.35rem;
    border-radius: 0.7rem;
    color: #ffffff;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    overflow: hidden;
}

.calc-item__art img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.calc-item__name {
    margin-top: 0.25rem;
    text-align: center;
    color: #d7e7ff;
    font-size: 0.72rem;
    line-height: 1.25;
}

.calc-item__value {
    padding: 0.14rem 0.42rem;
    margin-top: 0.25rem;
    color: #ffffff;
    background: rgba(15, 23, 42, 0.78);
    border-radius: 999px;
    font-size: 0.67rem;
    font-weight: 800;
}

.calc-item__badge {
    margin-top: 0.2rem;
    color: #c7d2fe;
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.calc-item__remove {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 1.3rem;
    height: 1.3rem;
    color: #f8fafc;
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(148, 163, 184, 0.42);
    border-radius: 999px;
    font-size: 0.72rem;
    line-height: 1;
    cursor: pointer;
}

.calculator-action {
    display: grid;
    justify-content: center;
    margin-top: 1.3rem;
}

.calculator-trade-link {
    display: inline-flex;
    min-height: 2.8rem;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.3rem;
    color: #ffffff;
    text-decoration: none;
    background: linear-gradient(135deg, #38bdf8, #2563eb);
    border: 1px solid rgba(147, 197, 253, 0.4);
    border-radius: 0.9rem;
    font-size: 1.02rem;
    font-weight: 800;
}

.calc-picker {
    position: fixed;
    inset: 0;
    z-index: 6000;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.78);
}

.calc-picker[hidden] {
    display: none !important;
}

.calc-picker__panel {
    width: min(100%, 62rem);
    max-height: min(88vh, 52rem);
    display: grid;
    background: #06080e;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 0.65rem;
    overflow: hidden;
}

.calc-picker-screen {
    display: grid;
    gap: 0.75rem;
    padding: 0.85rem;
}

.calc-picker__header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
}

.calc-picker__header h3 {
    margin: 0;
    font-size: 2rem;
    line-height: 1;
}

.calc-picker__header p {
    margin: 0.35rem 0 0;
    color: #9ca3af;
}

.calc-picker__header button {
    width: 2rem;
    height: 2rem;
    color: #d1d5db;
    background: transparent;
    border: 0;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
}

.calc-picker__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.calc-picker-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 2.15rem;
    padding: 0.35rem 0.85rem;
    color: #f3f4f6;
    background: #181b22;
    border: 1px solid #232833;
    border-radius: 999px;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
}

.calc-picker-tab i {
    display: inline-grid;
    place-items: center;
    min-width: 1.3rem;
    height: 1.3rem;
    color: #d1d5db;
    background: #252b36;
    border-radius: 999px;
    font-style: normal;
    font-size: 0.75rem;
}

.calc-picker-tab.is-active {
    background: #7c3aed;
    border-color: #8b5cf6;
}

.calc-picker-screen input[type="search"] {
    min-height: 2.8rem;
    padding: 0.65rem 0.75rem;
    color: #f8fafc;
    background: #090c12;
    border: 1px solid #1f2937;
    border-radius: 0.5rem;
    font: inherit;
}

.calc-picker__results-wrap {
    display: grid;
    grid-template-rows: auto 1fr;
    min-height: 0;
    border: 1px solid #1f2937;
    border-radius: 0.5rem;
    overflow: hidden;
}

.calc-picker__results-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid #1f2937;
}

.calc-picker__results-head strong {
    font-size: 1.2rem;
}

.calc-picker__results-head span {
    display: inline-grid;
    place-items: center;
    min-width: 1.4rem;
    height: 1.4rem;
    color: #f9fafb;
    background: #232833;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 800;
}

.calc-picker__list {
    min-height: 16rem;
    max-height: min(58vh, 32rem);
    overflow: auto;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.55rem;
    padding: 0.65rem;
    align-content: start;
}

.calc-picker-item {
    display: grid;
    gap: 0.45rem;
    min-height: 8.9rem;
    padding: 0.6rem;
    color: #f3f4f6;
    background: #070a10;
    border: 1px solid #111827;
    border-radius: 0.55rem;
    text-align: left;
    cursor: pointer;
}

.calc-picker-item__art {
    width: 3.55rem;
    height: 3.55rem;
    display: grid;
    place-items: center;
    border-radius: 0.6rem;
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 800;
}

.calc-picker-item__art img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.calc-picker-item__meta strong {
    display: block;
    font-size: 0.9rem;
    line-height: 1.2;
}

.calc-picker-item__meta span {
    color: #9ca3af;
    font-size: 0.85rem;
}

.calc-picker-item__value {
    color: #dbeafe;
    font-size: 0.82rem;
    font-weight: 800;
}

.calc-picker-screen--config {
    width: min(100%, 36rem);
    justify-self: center;
}

.calc-config__top {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    margin-top: 0.2rem;
}

.calc-config__top h4 {
    margin: 0;
    font-size: 1.95rem;
    line-height: 1;
    grid-column: 2;
    text-align: center;
}

.calc-config__top button {
    grid-column: 3;
    justify-self: end;
    min-height: 2.2rem;
    padding: 0.4rem 0.9rem;
    color: #f9fafb;
    background: #0d1118;
    border: 1px solid #374151;
    border-radius: 0.5rem;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.calc-config__item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.8rem;
    align-items: center;
    padding: 0.8rem;
    border: 1px solid #1f2937;
    border-radius: 0.55rem;
    background: #05070d;
    width: 100%;
    max-width: 32rem;
    margin: 0 auto;
}

.calc-config__item-art {
    width: 4rem;
    height: 4rem;
    display: grid;
    place-items: center;
    border-radius: 0.6rem;
}

.calc-config__item-art img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.calc-config__item strong {
    display: block;
    font-size: 1.1rem;
}

.calc-config__item p {
    margin: 0.25rem 0 0;
    color: #9ca3af;
}

.calc-config__field h5 {
    margin: 0 0 0.45rem;
    font-size: 1.35rem;
    text-align: center;
}

.calc-config__mode-switch {
    display: inline-grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.35rem;
    padding: 0.2rem;
    background: #080b12;
    border: 1px solid #1f2937;
    border-radius: 0.6rem;
    margin: 0 auto;
}

.calc-config__mode-switch button {
    min-height: 2.7rem;
    padding: 0.45rem 0.9rem;
    color: #c7d2fe;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 0.48rem;
    font: inherit;
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
}

.calc-config__mode-switch button.is-active {
    color: #ffffff;
    background: linear-gradient(135deg, #9333ea, #7c3aed);
    border-color: rgba(196, 181, 253, 0.55);
}

.calc-config__mode-switch button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.calc-config__qty {
    display: grid;
    grid-template-columns: 3rem 1fr 3rem;
    align-items: center;
    min-height: 3rem;
    background: #080b12;
    border: 1px solid #1f2937;
    border-radius: 0.55rem;
    width: 100%;
    max-width: 32rem;
    margin: 0 auto;
}

.calc-config__qty button {
    color: #f9fafb;
    background: transparent;
    border: 0;
    font-size: 1.5rem;
    cursor: pointer;
}

.calc-config__qty strong {
    text-align: center;
    font-size: 1.15rem;
}

.calc-config__submit {
    min-height: 3.1rem;
    color: #ffffff;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    border: 1px solid rgba(196, 181, 253, 0.45);
    border-radius: 0.55rem;
    font: inherit;
    font-size: 1.25rem;
    font-weight: 800;
    cursor: pointer;
    width: 100%;
    max-width: 32rem;
    margin: 0 auto;
}

.calc-art--portal { background: linear-gradient(135deg, #0ea5e9, #6366f1 52%, #67e8f9); }
.calc-art--buddha { background: linear-gradient(135deg, #eab308, #f97316); }
.calc-art--blizzard { background: linear-gradient(135deg, #93c5fd, #0ea5e9); }
.calc-art--creation { background: linear-gradient(135deg, #22c55e, #a855f7); }
.calc-art--phoenix { background: linear-gradient(135deg, #2563eb, #f59e0b); }
.calc-art--sound { background: linear-gradient(135deg, #581c87, #d946ef); }
.calc-art--shadow { background: linear-gradient(135deg, #020617, #4338ca 52%, #e11d48); }
.calc-art--bat { background: linear-gradient(135deg, #f97316, #ef4444 58%, #8b5cf6); }
.calc-art--giraffe { background: linear-gradient(135deg, #f59e0b, #fde68a 58%, #92400e); }
.calc-art--owl { background: linear-gradient(135deg, #92400e, #fbbf24 52%, #fef3c7); }
.calc-art--cow { background: linear-gradient(135deg, #f9a8d4, #d946ef); }
.calc-art--turtle { background: linear-gradient(135deg, #065f46, #14b8a6); }
.calc-art--limited { background: linear-gradient(135deg, #0f172a, #475569 52%, #f8fafc); }
.calc-art--limited-blue { background: linear-gradient(135deg, #082f49, #0284c7 52%, #bae6fd); }
.calc-art--ugc { background: linear-gradient(135deg, #6d28d9, #ec4899 52%, #f9a8d4); }
.calc-art--gear { background: linear-gradient(135deg, #334155, #64748b 52%, #cbd5e1); }
.calc-art--pass { background: linear-gradient(135deg, #14532d, #22c55e 52%, #bbf7d0); }
.calc-art--default { background: linear-gradient(135deg, #1d4ed8, #7c3aed 52%, #38bdf8); }

@media (max-width: 980px) {
    .calculator-board {
        grid-template-columns: 1fr;
    }

    .calc-picker__list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .calc-picker__list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}