.result-panel {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 16px;
    background: var(--color-surface);
    color: var(--color-text-primary);
}

.result-panel[hidden] {
    display: none;
}

.result-panel.success {
    background: var(--color-state-success-bg);
    border-color: var(--color-state-success-border);
    color: var(--color-state-success-text);
}

.result-panel.warning {
    background: var(--color-state-warning-bg);
    border-color: var(--color-state-warning-border);
    color: var(--color-state-warning-text);
}

.result-panel.error {
    background: var(--color-state-error-bg);
    border-color: var(--color-state-error-border);
    color: var(--color-state-error-text);
}

.result-panel h2 {
    margin: 0;
    font-size: 18px;
}

.result-panel p {
    margin: 6px 0 0;
    color: inherit;
}

.result-panel ul {
    margin: 12px 0 0;
    padding-left: 20px;
}

.result-panel li + li {
    margin-top: 6px;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 10;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgb(var(--color-text-primary-rgb) / 42%);
}

.modal-backdrop[hidden] {
    display: none;
}

.modal {
    position: relative;
    width: min(100%, 360px);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 24px;
    background: var(--color-surface-elevated);
    box-shadow: 0 18px 48px rgb(var(--color-text-primary-rgb) / 20%);
    text-align: center;
}

.modal-backdrop:not([hidden]) .solved-modal {
    animation: solved-modal-in 180ms ease-out both;
}

.help-modal {
    width: min(100%, 420px);
    text-align: left;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0;
    font-size: 20px;
    line-height: 1;
}

.modal-celebration {
    margin: 0 auto 10px;
    font-size: 30px;
    line-height: 1;
}

.success-icon {
    position: relative;
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 999px;
    background: var(--color-state-success-bg);
    box-shadow: 0 0 0 1px var(--color-state-success-border);
    animation: solved-icon-pop 420ms ease-out 90ms both;
}

.success-icon::before {
    content: "";
    width: 15px;
    height: 9px;
    border-bottom: 3px solid var(--color-success);
    border-left: 3px solid var(--color-success);
    transform: translateY(-1px) rotate(-45deg);
}

.modal h2 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 24px;
}

.modal p {
    margin: 8px 0 0;
    color: var(--color-text-secondary);
}

.modal .solved-time {
    color: var(--color-text-primary);
    font-weight: 800;
}

.help-list {
    margin: 16px 0 0;
    padding-left: 22px;
    color: var(--color-text-primary);
    line-height: 1.5;
}

.help-list li + li {
    margin-top: 8px;
}

.help-mark {
    color: var(--color-primary);
    font-weight: 800;
    margin: 0 2px;
}

.help-examples {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 18px;
}

.example-label {
    margin-bottom: 6px;
    color: var(--color-text-secondary);
    font-size: 13px;
    font-weight: 700;
}

.example-grid {
    display: grid;
    grid-template-columns: repeat(2, 28px);
    width: max-content;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface-muted);
}

.example-grid > span {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    font-weight: 800;
    line-height: 1;
}

.modal-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.modal-primary-action {
    box-shadow: 0 4px 12px rgb(var(--color-primary-rgb) / 18%);
}

.modal-secondary-action {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-primary);
}

.modal-secondary-action:hover {
    background: var(--color-surface-muted);
}

@keyframes solved-modal-in {
    0% {
        opacity: 0;
        transform: translateY(8px) scale(0.98);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes solved-icon-pop {
    0% {
        transform: scale(0.82);
    }

    55% {
        transform: scale(1.08);
    }

    100% {
        transform: scale(1);
    }
}

@media (prefers-reduced-motion: reduce) {
    .modal-backdrop:not([hidden]) .solved-modal,
    .success-icon {
        animation: none;
    }
}