.paint-planner fieldset { border: 1px solid var(--line, #ddd); border-radius: 1rem; margin: 1.1rem 0; padding: 1rem; min-width: 0; }
.paint-planner fieldset[hidden] { display: none; }
.paint-planner legend { padding: 0 .4rem; font-weight: 700; max-width: 100%; overflow-wrap: anywhere; }
.paint-planner .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.paint-planner label { min-width: 0; overflow-wrap: anywhere; }
.paint-planner input, .paint-planner select { width: 100%; min-width: 0; }
.paint-planner .paint-check { display: flex; align-items: flex-start; gap: .6rem; margin-top: 1rem; }
.paint-planner .paint-check input { width: 1.2rem; height: 1.2rem; flex: 0 0 1.2rem; margin-top: .15rem; }
.paint-wall { padding-bottom: 1rem; margin-bottom: 1rem; border-bottom: 1px solid var(--line, #ddd); }
.paint-wall h3 { margin: 0 0 .8rem; }
.paint-wall button { margin-top: .75rem; }
.paint-planner button { max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.paint-planner [data-paint-unit-note], .paint-planner .result { overflow-wrap: anywhere; }
.paint-app-preview { margin: 1.4rem 0; }
.app-aside .paint-app-preview img { display: block; width: 100%; height: auto; border-radius: 1rem; object-fit: contain; }
.paint-app-preview figcaption { margin-top: .75rem; font-size: .8rem; line-height: 1.5; }
@media (max-width: 42rem) { .paint-planner .form-grid { grid-template-columns: 1fr; } .paint-planner fieldset { padding: .8rem; } }