/* Interactive JS-driven chrome: command palette (cmd+k), code-copy buttons,
   and the 404 terminal. All colours via --app-* tokens (no raw hex). */

/* --- Command palette ----------------------------------------------------- */
.app-palette {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 12vh 1rem 1rem;
    background: rgba(1, 4, 9, 0.62);
}

.app-palette[hidden] {
    display: none;
}

.app-palette__box {
    width: 100%;
    max-width: 40rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border-strong);
    border-radius: var(--app-radius-lg);
    box-shadow: var(--app-shadow);
    overflow: hidden;
}

.app-palette__input {
    width: 100%;
    box-sizing: border-box;
    padding: 0.85rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--app-border);
    background: var(--app-bg-soft);
    color: var(--app-text-strong);
    font-family: var(--app-font-mono);
    font-size: 0.95rem;
}

.app-palette__input:focus {
    outline: none;
}

.app-palette__list {
    list-style: none;
    margin: 0;
    padding: 0.35rem;
    max-height: 50vh;
    overflow-y: auto;
}

.app-palette__item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--app-radius);
    cursor: pointer;
    font-family: var(--app-font-mono);
    font-size: 0.9rem;
    color: var(--app-text);
}

.app-palette__item.is-active {
    background: var(--app-green-soft);
    color: var(--app-text-strong);
}

.app-palette__label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-palette__kind {
    flex: none;
    color: var(--app-faint);
    font-size: 0.72rem;
    text-transform: lowercase;
}

.app-palette__empty {
    padding: 0.75rem;
    color: var(--app-muted);
    font-family: var(--app-font-mono);
    font-size: 0.85rem;
    text-align: center;
}

body.app-palette-open {
    overflow: hidden;
}

/* --- Code-block copy button --------------------------------------------- */
.app-prose .codehilite {
    position: relative;
}

.app-code-copy {
    position: absolute;
    top: 0.4rem;
    right: 0.4rem;
    padding: 0.15rem 0.5rem;
    border: 1px solid var(--app-border-strong);
    border-radius: var(--app-radius-sm);
    background: var(--app-surface-2);
    color: var(--app-muted);
    font-family: var(--app-font-mono);
    font-size: 0.72rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--app-transition), color var(--app-transition);
}

.app-prose .codehilite:hover .app-code-copy,
.app-code-copy:focus-visible {
    opacity: 1;
}

.app-code-copy:hover {
    color: var(--app-text-strong);
    border-color: var(--app-green);
}

.app-code-copy.is-copied {
    opacity: 1;
    color: var(--app-green);
    border-color: var(--app-green);
}

/* --- 404 terminal -------------------------------------------------------- */
.app-shell404 {
    margin-top: 1.25rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius-lg);
    background: var(--app-bg-soft);
    font-family: var(--app-font-mono);
    font-size: 0.85rem;
}

.app-shell404[hidden] {
    display: none;
}

.app-shell404__output {
    max-height: 11rem;
    overflow-y: auto;
    margin-bottom: 0.4rem;
}

.app-shell404__row {
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--app-text);
    line-height: 1.5;
}

.app-shell404__row a {
    color: var(--app-link);
}

.app-shell404__echo {
    color: var(--app-faint);
}

.app-shell404__err {
    color: var(--app-danger);
}

.app-shell404__line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-shell404__prompt {
    flex: none;
    color: var(--app-green);
}

.app-shell404__input {
    flex: 1;
    min-width: 0;
    border: 0;
    background: transparent;
    color: var(--app-text-strong);
    font-family: var(--app-font-mono);
    font-size: 0.85rem;
}

.app-shell404__input:focus {
    outline: none;
}