/* Mambrino puzzle page (/games/mambrino). Bare first version; uses the
 * site's colour variables only. */

.mb-game {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 48rem;
}

.mb-picker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mb-game select,
.mb-game textarea,
.mb-game button {
    font: inherit;
    color: var(--fg);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.mb-game select {
    padding: 0.3rem 0.5rem;
}

.mb-challenge h2 {
    margin: 0 0 0.25rem;
}

.mb-machine {
    margin: 0;
    color: var(--fg-dim);
}

.mb-target,
.mb-output {
    font-family: var(--mono);
    white-space: pre-wrap;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.6rem 0.8rem;
    margin: 0;
}

.mb-card summary {
    cursor: pointer;
    color: var(--accent);
}

.mb-ops td {
    padding: 0.15rem 1rem 0.15rem 0;
    vertical-align: top;
}

.mb-workbench {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.mb-editor {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex: 1;
    min-width: 0;
}

/* The textarea is transparent so the line mark behind it shows through. */
.mb-code {
    position: relative;
    background: var(--bg-alt);
    border-radius: 4px;
}

.mb-game textarea {
    position: relative;
    display: block;
    font-family: var(--mono);
    line-height: 1.5;
    padding: 0.6rem 0.8rem;
    width: 100%;
    box-sizing: border-box;
    resize: vertical;
    background: transparent;
    white-space: pre;
    overflow-x: auto;
}

.mb-game textarea[readonly] {
    color: var(--fg-dim);
}

.mb-line-mark {
    position: absolute;
    left: 1px;
    right: 1px;
    background: rgba(184, 135, 63, 0.22);
    border-left: 3px solid var(--accent);
    pointer-events: none;
}

/* The machine: one lamp, and the state under it. */
.mb-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.9rem;
    padding: 1.4rem 1.2rem 1rem;
    margin-top: 1.6rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 6px;
    min-width: 8rem;
}

.mb-lamp {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    border: 3px solid var(--accent-dim);
    background: radial-gradient(circle at 38% 34%, #4d3d2e, #1c1511 70%);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.6);
    transition: background 0.12s, box-shadow 0.12s;
}

.mb-lamp.on {
    background: radial-gradient(circle at 40% 36%, #fff6dc, #ffcd6b 40%, #d0801f 80%);
    box-shadow:
        0 0 14px 4px rgba(255, 196, 96, 0.6),
        0 0 42px 16px rgba(255, 170, 60, 0.25);
}

.mb-state {
    margin: 0;
    font-family: var(--mono);
    display: grid;
    gap: 0.15rem;
}

.mb-state div {
    display: flex;
    justify-content: space-between;
    gap: 1.2rem;
}

.mb-state dt {
    color: var(--fg-dim);
}

.mb-state dd {
    margin: 0;
}

@media (max-width: 640px) {
    .mb-workbench {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .mb-panel {
        flex-direction: row;
        justify-content: center;
        margin-top: 0;
    }
}

.mb-buttons {
    display: flex;
    gap: 0.5rem;
}

.mb-game button {
    padding: 0.35rem 1.1rem;
    cursor: pointer;
}

.mb-game button:hover:not(:disabled) {
    border-color: var(--accent);
}

.mb-game button:disabled {
    opacity: 0.45;
    cursor: default;
}

.mb-game button.mb-stop {
    border-color: var(--error);
}

.mb-target {
    overflow-wrap: anywhere;
}

/* Strips and the want/got caret must stay aligned, so scroll, don't wrap. */
.mb-output {
    white-space: pre;
    overflow-x: auto;
}

.mb-output.mb-pass {
    border-color: var(--accent);
}

.mb-output.mb-fail {
    border-color: var(--error);
}