/* ============================================================================
   course-widgets/dual-pathway-map.css -- widget #07 (mechanism)
   central hub branching into parallel pathway columns; click a node -> detail.
   single/dual toggle dims inactive branches. theme-token styled.
   ============================================================================ */

.cw-dpm { display: flex; flex-direction: column; gap: 16px; }

/* --- toggle row ---------------------------------------------------------- */
.cw-dpm-toggle-row { display: flex; align-items: center; justify-content: center; gap: 12px; }
.cw-dpm-tlabel {
    font-size: 0.82rem; font-weight: 500; color: var(--cw-muted);
    transition: color .25s ease;
}
.cw-dpm-tlabel.is-active { font-weight: 700; color: var(--cw-accent); }
.cw-dpm-switch {
    position: relative; width: 48px; height: 26px; border-radius: 13px;
    background: var(--cw-border); cursor: pointer; border: 0; padding: 0;
    transition: background .25s ease;
}
.cw-dpm-switch.is-on { background: var(--cw-accent); }
.cw-dpm-switch:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--cw-accent-soft); }
.cw-dpm-switch-thumb {
    position: absolute; top: 3px; left: 3px; width: 20px; height: 20px;
    border-radius: 50%; background: #fff; transition: transform .25s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
.cw-dpm-switch.is-on .cw-dpm-switch-thumb { transform: translateX(22px); }

/* --- hub + columns ------------------------------------------------------- */
.cw-dpm-map { display: flex; flex-direction: column; align-items: center; gap: 0; }
.cw-dpm-hub {
    padding: 12px 22px; border-radius: 12px; font-weight: 700; font-size: 0.96rem;
    text-align: center; color: var(--cw-text);
    background: var(--cw-accent-soft); border: 2px solid var(--cw-accent);
    position: relative;
}
/* connector stem from hub down to the columns */
.cw-dpm-hub::after {
    content: ""; display: block; width: 2px; height: 16px; margin: 0 auto;
    background: var(--cw-border); position: absolute; left: 50%; bottom: -16px;
    transform: translateX(-50%);
}
.cw-dpm-cols {
    display: grid; grid-template-columns: repeat(var(--cw-dpm-n, 2), minmax(0, 1fr));
    gap: var(--cw-gap); width: 100%; margin-top: 16px;
}
.cw-dpm-col {
    display: flex; flex-direction: column; gap: 8px;
    transition: opacity .25s ease;
}
.cw-dpm-col.is-dim { opacity: 0.4; }
.cw-dpm-col-title {
    font-size: 0.8rem; font-weight: 700; text-align: center;
    padding: 8px 10px; border-radius: 8px;
    color: var(--cw-muted); background: var(--cw-surface);
    border: 1px solid var(--cw-border); transition: all .25s ease;
}
.cw-dpm-col-title.is-active {
    color: var(--cw-accent); background: var(--cw-accent-soft);
    border-color: var(--cw-accent);
}
.cw-dpm-node {
    padding: 10px 12px; border-radius: 10px; font-size: 0.8rem; font-weight: 600;
    text-align: center; cursor: pointer; color: var(--cw-text);
    border: 1px solid var(--cw-border); background: var(--cw-surface); font: inherit;
    transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.cw-anim-on .cw-dpm-node:not(.is-dim):hover { border-color: var(--cw-accent); transform: translateY(-1px); }
.cw-dpm-node:focus-visible { outline: 2px solid var(--cw-accent); outline-offset: 2px; }
.cw-dpm-node.is-selected { border-color: var(--cw-accent); background: var(--cw-accent-soft); }
.cw-dpm-node.is-dim { cursor: default; }

/* --- detail panel -------------------------------------------------------- */
.cw-dpm-detail {
    padding: 14px 16px; border-radius: var(--cw-radius);
    background: var(--cw-surface); border: 1px solid var(--cw-border);
    border-left: 3px solid var(--cw-accent);
}
.cw-dpm-hint { margin: 0; color: var(--cw-muted); }
.cw-dpm-detail-title { font-weight: 700; color: var(--cw-accent); margin-bottom: 4px; }
.cw-dpm-detail-desc { margin: 0; font-size: 0.88rem; line-height: 1.7; color: var(--cw-text); }

@media (max-width: 560px) {
    .cw-dpm-cols { grid-template-columns: 1fr; }
}