.catalogue-filters,
.planner-controls,
.planet-controls {
    display: grid;
    gap: .85rem;
    margin-top: 1.2rem;
    align-items: end;
}
.catalogue-filters { grid-template-columns: minmax(220px, 1fr) 220px 220px; }
.planner-controls { grid-template-columns: repeat(5, minmax(125px, 1fr)) auto; }
.planet-controls { grid-template-columns: minmax(220px, 380px) auto; justify-content: start; }
.catalogue-filters label,
.planner-controls label,
.planet-controls label { display: grid; gap: .4rem; }
.catalogue-filters input,
.catalogue-filters select,
.planner-controls input,
.planner-controls select,
.planet-controls input {
    width: 100%;
    min-height: 44px;
    padding: .62rem .72rem;
    border: 1px solid var(--border, rgba(123,145,180,.28));
    border-radius: 10px;
    background: var(--surface-strong, rgba(6,12,23,.9));
    color: inherit;
}
.catalogue-grid,
.planner-results,
.planet-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.2rem;
}
.catalogue-card,
.planner-card,
.planet-card {
    padding: 1.25rem;
    border: 1px solid var(--border, rgba(123,145,180,.22));
    border-radius: 20px;
    background: var(--surface, rgba(14,22,38,.76));
}
.catalogue-card-heading,
.planner-card-top,
.planet-card-heading {
    display: flex;
    justify-content: space-between;
    gap: .9rem;
    align-items: start;
}
.catalogue-card h2,
.planner-card h3,
.planet-card h2 { margin: .25rem 0 .3rem; }
.catalogue-id {
    display: inline-block;
    padding: .18rem .42rem;
    border-radius: 6px;
    background: rgba(80,110,235,.14);
    font: 700 .78rem/1.2 ui-monospace, monospace;
    letter-spacing: .05em;
}
.difficulty {
    white-space: nowrap;
    padding: .28rem .5rem;
    border-radius: 999px;
    font-size: .78rem;
}
.difficulty-1 { background: rgba(81,180,119,.15); color: #82d99d; }
.difficulty-2 { background: rgba(219,172,69,.15); color: #e5be68; }
.difficulty-3 { background: rgba(213,103,108,.15); color: #e4878c; }
.catalogue-card > p,
.planner-card small { color: var(--muted, #aeb9ca); }
.catalogue-facts,
.planner-facts,
.planet-facts { margin: 1rem 0; }
.catalogue-facts div,
.planner-facts div,
.planet-facts div {
    display: flex;
    justify-content: space-between;
    gap: .8rem;
    padding: .45rem 0;
    border-bottom: 1px solid var(--border, rgba(123,145,180,.16));
}
.catalogue-facts dt,
.planner-facts dt,
.planet-facts dt { color: var(--muted, #aeb9ca); }
.catalogue-facts dd,
.planner-facts dd,
.planet-facts dd { margin: 0; text-align: right; font-weight: 650; }
.catalogue-actions { display: flex; flex-wrap: wrap; gap: .55rem; }
.planner-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(275px, .32fr);
    gap: 1.2rem;
    margin-top: 1.3rem;
    align-items: start;
}
.planner-heading { margin-bottom: 0; }
.planner-watchlist { position: sticky; top: 95px; }
.planner-watchlist textarea {
    width: 100%;
    resize: vertical;
    padding: .75rem;
    border: 1px solid var(--border, rgba(123,145,180,.25));
    border-radius: 12px;
    background: rgba(3,7,14,.7);
    color: inherit;
    line-height: 1.5;
}
.planner-watchlist-actions { display: flex; gap: .55rem; margin-top: .75rem; }
.planner-select {
    display: flex;
    gap: .45rem;
    align-items: center;
    font-size: .83rem;
}
.planner-card svg,
.planet-card svg {
    width: 100%;
    height: 112px;
    margin-top: .8rem;
    overflow: visible;
}
.altitude-horizon { stroke: rgba(210,220,240,.25); stroke-dasharray: 5 4; }
.altitude-line,
.planet-altitude-line { fill: none; stroke: #7f9eff; stroke-width: 3; vector-effect: non-scaling-stroke; }
.planet-altitude-line { stroke: #a78bfa; }
.planet-visible { color: #82d99d; }
.planet-hidden { color: #e4878c; }
.planet-card-heading strong { font-size: 1.25rem; }
@media (max-width: 1150px) {
    .catalogue-grid,
    .planner-results,
    .planet-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .planner-controls { grid-template-columns: repeat(3, minmax(130px, 1fr)); }
}
@media (max-width: 820px) {
    .catalogue-filters,
    .planner-controls,
    .planet-controls,
    .planner-layout { grid-template-columns: 1fr; }
    .planner-watchlist { position: static; }
}
@media (max-width: 620px) {
    .catalogue-grid,
    .planner-results,
    .planet-grid { grid-template-columns: 1fr; }
}