.project-prompt {
    /* Outer heights include the toolbar and border: previously 92px / 150px. */
    --project-prompt-collapsed-height: 117px;
    --project-prompt-toolbar-height: 44px;
    position: relative;
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--input-border, #ccc);
    border-radius: 8px;
    background: var(--input-bg, white);
    box-shadow: 0 1px 3px var(--shadow-color, #0003);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.3s;
}
.project-prompt:focus-within {
    border-color: var(--button-bg, #287bb0);
    box-shadow: 0 1px 5px rgba(52, 152, 219, 0.2);
}
.project-prompt > .chat-input {
    flex: 0 0 auto;
    width: 100%;
    min-width: 0;
    height: calc(var(--project-prompt-collapsed-height) - var(--project-prompt-toolbar-height) - 2px);
    padding: 12px 15px;
    border: 0;
    border-radius: 7px 7px 0 0;
    box-shadow: none;
    outline: none;
    overflow-y: auto;
}
.project-prompt > .chat-input.expanded {
    /* Home.js toggles this class, including initial expansion on phones. */
    height: calc(175px - var(--project-prompt-toolbar-height) - 2px);
}
.project-picker-buttons {
    display: flex;
    flex: 0 0 var(--project-prompt-toolbar-height);
    box-sizing: border-box;
    padding: 5px 6px;
    gap: 4px;
}
.project-picker-buttons button,
.project-picker-heading button {
    border: 1px solid var(--input-border, #ccc);
    background: var(--input-bg, white);
    color: var(--input-text, #333);
    border-radius: 5px;
    cursor: pointer;
    min-width: 36px;
    min-height: 34px;
    font: inherit;
}
.project-picker {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 0;
    width: max(100%, 320px);
    max-width: var(--project-picker-available-width, calc(100vw - 40px));
    box-sizing: border-box;
    z-index: 20;
    border: 1px solid var(--input-border, #ccc);
    border-radius: 8px;
    background: var(--input-bg, white);
    color: var(--input-text, #333);
    box-shadow: 0 3px 16px var(--shadow-color, #0003);
    overflow: hidden;
}
.project-picker[hidden], .project-picker button[hidden] { display: none; }
.project-picker-heading {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-bottom: 1px solid var(--input-border, #ccc);
}
.project-picker-status { flex: 1; font-size: 0.85rem; overflow-wrap: anywhere; }
.project-picker-error { color: #ac2929; }
.dark-mode .project-picker-error { color: #ffb0a9; }
.project-picker-list { max-height: min(32vh, 280px); overflow-y: auto; overscroll-behavior: contain; }
.project-picker-option {
    display: flex;
    flex-direction: column;
    text-align: left;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--input-border, #ccc);
    padding: 10px;
    min-height: 44px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    font: inherit;
    overflow-wrap: anywhere;
}
.project-picker-option span { font-size: 0.8rem; opacity: 0.85; }
.project-picker-option[aria-selected="true"] { background: var(--button-bg, #287bb0); color: white; }
.project-prompt button:focus-visible { outline: 2px solid var(--button-bg, #287bb0); outline-offset: -2px; }
@media (max-width: 700px) {
    .project-picker-buttons button { min-width: 40px; min-height: 38px; }
    .project-prompt {
        /* Previously 96px collapsed on mobile; retain 40px x 38px buttons. */
        --project-prompt-collapsed-height: 121px;
        --project-prompt-toolbar-height: 48px;
    }
}