.cn-frog-swap {
    --frog-bg: #0d1730;
    --frog-panel: rgba(255, 255, 255, 0.075);
    --frog-panel-strong: rgba(255, 255, 255, 0.12);
    --frog-border: rgba(255, 255, 255, 0.16);
    --frog-text: #f4f7ff;
    --frog-muted: #b9c5db;
    --frog-primary: #79a3ff;
    --frog-primary-strong: #2f6fed;
    --frog-right: #38d6be;
    --frog-left: #c989ff;
    --frog-leaf: #f6b73c;
    --frog-danger: #ff9a9a;
    --frog-focus: #f6b73c;
    --frog-shadow: 0 24px 64px rgba(6, 12, 28, 0.3);
    min-height: calc(100vh - 64px);
    padding: clamp(1rem, 3vw, 2.5rem);
    color: var(--frog-text);
    background:
        radial-gradient(circle at 12% 8%, rgba(47, 111, 237, 0.32), transparent 34rem),
        radial-gradient(circle at 86% 18%, rgba(56, 214, 190, 0.18), transparent 30rem),
        var(--frog-bg);
    color-scheme: dark;
}

.cn-frog-swap[data-frog-theme="light"] {
    --frog-bg: #edf3ff;
    --frog-panel: rgba(255, 255, 255, 0.72);
    --frog-panel-strong: #fff;
    --frog-border: #cbd7ea;
    --frog-text: #17233c;
    --frog-muted: #53627a;
    --frog-primary: #1e5ed8;
    --frog-primary-strong: #2f6fed;
    --frog-right: #078876;
    --frog-left: #8246b4;
    --frog-leaf: #a86800;
    --frog-danger: #b4232f;
    --frog-shadow: 0 24px 60px rgba(39, 65, 111, 0.14);
    background:
        radial-gradient(circle at 12% 8%, rgba(47, 111, 237, 0.16), transparent 34rem),
        radial-gradient(circle at 86% 18%, rgba(56, 214, 190, 0.17), transparent 30rem),
        var(--frog-bg);
    color-scheme: light;
}

.cn-frog-swap,
.cn-frog-swap *,
.cn-frog-swap *::before,
.cn-frog-swap *::after {
    box-sizing: border-box;
}

.cn-frog-swap__header,
.cn-frog-swap__toolbar,
.cn-frog-swap__content,
.cn-frog-swap__footer {
    width: min(74rem, 100%);
    margin-inline: auto;
}

.cn-frog-swap__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    padding: clamp(1rem, 2.5vw, 1.75rem);
    border: 1px solid var(--frog-border);
    border-radius: 1.25rem 1.25rem 0 0;
    background: var(--frog-panel);
    box-shadow: var(--frog-shadow);
    backdrop-filter: blur(14px);
}

.cn-frog-swap__heading {
    max-width: 44rem;
}

.cn-frog-swap__heading h1,
.cn-frog-swap__heading p,
.cn-frog-swap__footer p,
.cn-frog-swap__instructions,
.cn-frog-swap__message {
    margin: 0;
}

.cn-frog-swap__heading h1 {
    margin-top: 0.2rem;
    font-size: clamp(1.75rem, 5vw, 3.2rem);
    font-weight: 850;
    letter-spacing: -0.045em;
}

.cn-frog-swap__heading > p:last-child {
    margin-top: 0.55rem;
    color: var(--frog-muted);
    font-size: clamp(0.95rem, 2vw, 1.08rem);
}

.cn-frog-swap__eyebrow {
    color: var(--frog-primary);
    font-size: 0.74rem;
    font-weight: 850;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.cn-frog-swap__settings {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.cn-frog-swap__level {
    display: grid;
    gap: 0.3rem;
    color: var(--frog-muted);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.cn-frog-swap__level select {
    min-height: 44px;
    padding: 0.55rem 2.3rem 0.55rem 0.75rem;
    color: var(--frog-text);
    background-color: var(--frog-panel-strong);
    border: 1px solid var(--frog-border);
    border-radius: 0.75rem;
    font: inherit;
    font-size: 0.9rem;
    letter-spacing: normal;
}

.cn-frog-swap__level option {
    color: #17233c;
    background: #fff;
}

.cn-frog-swap__toolbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.65rem;
    flex-wrap: wrap;
    padding: 0.9rem clamp(1rem, 2.5vw, 1.75rem);
    border-inline: 1px solid var(--frog-border);
    background: var(--frog-panel);
}

.cn-frog-swap__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 44px;
    padding: 0.58rem 0.85rem;
    color: var(--frog-text);
    background: var(--frog-panel-strong);
    border: 1px solid var(--frog-border);
    border-radius: 0.75rem;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 780;
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.cn-frog-swap__button:hover:not(:disabled) {
    border-color: var(--frog-primary);
    transform: translateY(-1px);
}

.cn-frog-swap__button:disabled {
    opacity: 0.48;
    cursor: not-allowed;
}

.cn-frog-swap__button--primary {
    color: #fff;
    background: var(--frog-primary-strong);
    border-color: var(--frog-primary-strong);
}

.cn-frog-swap__button--danger {
    color: var(--frog-danger);
}

.cn-frog-swap__button--quiet {
    background: transparent;
}

.cn-frog-swap__content {
    padding: clamp(1rem, 3vw, 2rem);
    border-inline: 1px solid var(--frog-border);
    background: rgba(0, 0, 0, 0.1);
}

.cn-frog-swap[data-frog-theme="light"] .cn-frog-swap__content {
    background: rgba(255, 255, 255, 0.42);
}

.cn-frog-swap__stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.7rem;
    margin: 0;
}

.cn-frog-swap__stats > div {
    min-width: 0;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--frog-border);
    border-radius: 0.85rem;
    background: var(--frog-panel);
}

.cn-frog-swap__stats dt {
    color: var(--frog-muted);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.cn-frog-swap__stats dd {
    margin: 0.2rem 0 0;
    overflow-wrap: anywhere;
    font-size: clamp(1rem, 2.6vw, 1.35rem);
    font-weight: 850;
}

.cn-frog-swap__message {
    min-height: 3.25rem;
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    color: var(--frog-text);
    background: var(--frog-panel);
    border: 1px solid var(--frog-border);
    border-left: 0.3rem solid var(--frog-primary);
    border-radius: 0.75rem;
}

.cn-frog-swap__legend {
    display: flex;
    align-items: center;
    gap: 0.75rem 1.25rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    color: var(--frog-muted);
    font-size: 0.84rem;
}

.cn-frog-swap__legend > span {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.cn-frog-swap__swatch {
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 50%;
    box-shadow: 0 0 0 0.18rem var(--frog-panel-strong);
}

.cn-frog-swap__swatch--right {
    background: var(--frog-right);
}

.cn-frog-swap__swatch--left {
    background: var(--frog-left);
}

.cn-frog-swap__instructions {
    margin-top: 0.85rem;
    color: var(--frog-muted);
    font-size: 0.85rem;
}

.cn-frog-swap__board-scroll {
    margin-top: 1.2rem;
    padding: 0.35rem 0.15rem 0.85rem;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-color: var(--frog-primary) transparent;
}

.cn-frog-swap__board {
    display: grid;
    gap: clamp(0.28rem, 0.9vw, 0.7rem);
    width: 100%;
    margin-inline: auto;
    padding: clamp(0.7rem, 2vw, 1.1rem);
    background: var(--frog-panel);
    border: 1px solid var(--frog-border);
    border-radius: 1rem;
    touch-action: pan-y;
}

.cn-frog-swap__board--size-3 {
    grid-template-columns: repeat(3, minmax(2.75rem, 1fr));
    min-width: 12rem;
}

.cn-frog-swap__board--size-5 {
    grid-template-columns: repeat(5, minmax(2.75rem, 1fr));
    min-width: 19rem;
}

.cn-frog-swap__board--size-7 {
    grid-template-columns: repeat(7, minmax(2.75rem, 1fr));
    min-width: 26rem;
}

.cn-frog-swap__board--size-9 {
    grid-template-columns: repeat(9, minmax(2.75rem, 1fr));
    min-width: 33rem;
}

.cn-frog-swap__board--size-11 {
    grid-template-columns: repeat(11, minmax(2.75rem, 1fr));
    min-width: 40rem;
}

.cn-frog-swap__board--size-13 {
    grid-template-columns: repeat(13, minmax(2.75rem, 1fr));
    min-width: 47rem;
}

.cn-frog-swap__board.is-dragging {
    cursor: grabbing;
}

.cn-frog-swap__pad {
    position: relative;
    display: grid;
    place-items: center;
    min-width: 0;
    min-height: 44px;
    aspect-ratio: 1;
    padding: 0.15rem;
    color: var(--frog-text);
    background:
        radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.18), transparent 62%),
        rgba(19, 112, 80, 0.4);
    border: 2px solid rgba(78, 218, 160, 0.56);
    border-radius: 50% 48% 52% 46%;
    box-shadow: 0 0.45rem 1.1rem rgba(0, 0, 0, 0.2);
    font: inherit;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease, background-color 170ms ease;
}

.cn-frog-swap__pad::after {
    position: absolute;
    right: 5%;
    bottom: 7%;
    width: 31%;
    height: 2px;
    background: rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    content: "";
    transform: rotate(-28deg);
}

.cn-frog-swap__pad:hover {
    transform: translateY(-2px);
}

.cn-frog-swap__pad[aria-disabled="true"] {
    cursor: default;
    opacity: 0.72;
}

.cn-frog-swap__pad[aria-disabled="true"]:hover {
    transform: none;
}

.cn-frog-swap__pad.is-selected {
    border-color: var(--frog-leaf);
    box-shadow: 0 0 0 0.35rem color-mix(in srgb, var(--frog-leaf) 28%, transparent), 0 0.6rem 1.2rem rgba(0, 0, 0, 0.22);
    transform: translateY(-3px) scale(1.03);
}

.cn-frog-swap__pad.is-target,
.cn-frog-swap__pad.is-hint-to,
.cn-frog-swap__pad.is-drop-target {
    border-color: var(--frog-right);
    box-shadow: 0 0 0 0.3rem color-mix(in srgb, var(--frog-right) 24%, transparent);
}

.cn-frog-swap__pad.is-hint-from {
    border-color: var(--frog-leaf);
    animation: cn-frog-swap-pulse 700ms ease-in-out infinite alternate;
}

.cn-frog-swap__pad.is-drop-hover {
    background-color: rgba(56, 214, 190, 0.34);
    transform: scale(1.06);
}

.cn-frog-swap__pad.is-dragging {
    opacity: 0.62;
    transform: scale(0.95);
}

.cn-frog-swap__token {
    display: grid;
    width: 88%;
    height: 88%;
    place-items: center;
    filter: drop-shadow(0 0.25rem 0.22rem rgba(0, 0, 0, 0.22));
    pointer-events: none;
}

.cn-frog-swap__token svg {
    display: block;
    width: 100%;
    height: 100%;
}

.cn-frog-swap__token--right {
    color: var(--frog-right);
}

.cn-frog-swap__token--left {
    color: var(--frog-left);
    transform: scaleX(-1);
}

.cn-frog-swap__empty {
    color: var(--frog-leaf);
    font-size: clamp(1.15rem, 4vw, 2rem);
    line-height: 1;
    pointer-events: none;
}

.cn-frog-swap.is-complete .cn-frog-swap__board {
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--frog-right) 24%, transparent);
}

.cn-frog-swap__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    flex-wrap: wrap;
    padding: 0.9rem clamp(1rem, 3vw, 2rem);
    color: var(--frog-muted);
    background: var(--frog-panel);
    border: 1px solid var(--frog-border);
    border-radius: 0 0 1.25rem 1.25rem;
    font-size: 0.79rem;
}

.cn-frog-swap__noscript {
    margin: 1rem 0 0;
    padding: 0.8rem 1rem;
    color: #17233c;
    background: #fff3cd;
    border: 1px solid #ffe69c;
    border-radius: 0.75rem;
}

@keyframes cn-frog-swap-pulse {
    from {
        box-shadow: 0 0 0 0.12rem color-mix(in srgb, var(--frog-leaf) 20%, transparent);
    }
    to {
        box-shadow: 0 0 0 0.42rem color-mix(in srgb, var(--frog-leaf) 35%, transparent);
    }
}

@media (max-width: 767.98px) {
    .cn-frog-swap {
        padding: 0.75rem;
    }

    .cn-frog-swap__header {
        display: grid;
        gap: 1rem;
    }

    .cn-frog-swap__settings,
    .cn-frog-swap__toolbar {
        justify-content: stretch;
    }

    .cn-frog-swap__settings > *,
    .cn-frog-swap__toolbar .cn-frog-swap__button {
        flex: 1 1 calc(50% - 0.5rem);
    }

    .cn-frog-swap__level select {
        width: 100%;
    }

    .cn-frog-swap__stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .cn-frog-swap__content {
        padding-inline: 0.8rem;
    }
}

@media (max-width: 419.98px) {
    .cn-frog-swap__settings,
    .cn-frog-swap__toolbar {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .cn-frog-swap__button {
        width: 100%;
    }

    .cn-frog-swap__legend,
    .cn-frog-swap__footer {
        display: grid;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cn-frog-swap__button,
    .cn-frog-swap__pad {
        transition: none;
    }

    .cn-frog-swap__pad.is-hint-from {
        animation: none;
    }
}

@media (forced-colors: active) {
    .cn-frog-swap__button,
    .cn-frog-swap__level select,
    .cn-frog-swap__pad,
    .cn-frog-swap__stats > div,
    .cn-frog-swap__message {
        border: 1px solid CanvasText;
    }

    .cn-frog-swap__pad.is-selected,
    .cn-frog-swap__pad.is-hint-from,
    .cn-frog-swap__pad.is-hint-to,
    .cn-frog-swap__pad.is-drop-target {
        outline: 3px solid Highlight;
        outline-offset: 2px;
    }
}