/* Santa Lịch — Huyền Không Phi Tinh foundation */
.flying-star-page {
    --fs-purple: #6f3bb5;
    --fs-purple-dark: #4e2784;
    --fs-purple-soft: #f5effc;
    --fs-border: #dfd2f1;
}

.flying-star-hero {
    max-width: 860px;
    margin: 4px auto 28px;
    text-align: center;
}

.flying-star-hero h1 {
    margin: 5px 0 12px;
    color: var(--fs-purple-dark);
    font-size: clamp(2rem, 4vw, 2.75rem);
    line-height: 1.12;
}

.flying-star-hero p {
    margin: 0;
    color: var(--text-soft);
    font-size: 1.02rem;
}

.flying-star-input {
    max-width: 920px;
    margin-inline: auto;
}

.flying-star-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(190px, .62fr) auto;
    gap: 14px;
    align-items: end;
}

.flying-star-form label {
    display: grid;
    gap: 6px;
    color: var(--text-main);
    font-weight: 700;
}

.flying-star-form label small {
    color: var(--text-soft);
    font-weight: 500;
}

.flying-star-form input {
    width: 100%;
    min-width: 0;
}

.flying-star-form-note,
.flying-star-chart-note {
    margin: 14px 0 0;
    color: var(--text-soft);
    font-size: .9rem;
}

.flying-star-boundary-warning {
    max-width: 920px;
    margin: 20px auto 0;
    padding: 16px 18px;
    border: 1px solid #efd18b;
    border-radius: var(--radius-md);
    background: #fff9e8;
}

.flying-star-boundary-warning strong {
    color: #8a5c00;
}

.flying-star-boundary-warning p {
    margin: 5px 0;
}

.flying-star-boundary-warning small {
    color: var(--text-soft);
}

.flying-star-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    max-width: 920px;
    margin: 20px auto 0;
}

.flying-star-summary article {
    min-width: 0;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.flying-star-summary article.is-period {
    border-color: var(--fs-border);
    background: var(--fs-purple-soft);
}

.flying-star-summary span,
.flying-star-summary small {
    display: block;
    color: var(--text-soft);
}

.flying-star-summary strong {
    display: block;
    margin: 3px 0;
    color: var(--fs-purple-dark);
    font-size: 1.45rem;
}

.flying-star-period-chart {
    max-width: 920px;
    margin-inline: auto;
}

.flying-star-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    width: min(100%, 610px);
    margin: 0 auto;
}

.flying-star-cell {
    min-height: 116px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.flying-star-cell.is-center {
    border-color: var(--fs-border);
    background: var(--fs-purple-soft);
    box-shadow: inset 0 0 0 1px rgba(111, 59, 181, .08);
}

.flying-star-cell > span {
    color: var(--text-soft);
    font-size: .75rem;
    font-weight: 700;
}

.flying-star-cell > strong {
    color: var(--fs-purple-dark);
    font-size: 2rem;
    line-height: 1.05;
}

.flying-star-cell > em {
    color: var(--text-main);
    font-size: .82rem;
    font-style: normal;
    font-weight: 800;
}

.flying-star-cell > small {
    color: var(--text-soft);
}

.flying-star-catalog {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.flying-star-catalog article {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
}

.flying-star-catalog article > strong {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--fs-purple-soft);
    color: var(--fs-purple-dark);
    font-size: 1.25rem;
}

.flying-star-catalog h3 {
    margin: 0 0 2px;
    font-size: .98rem;
}

.flying-star-catalog span {
    display: block;
    color: var(--text-soft);
    font-size: .8rem;
}

.flying-star-catalog p {
    margin: 5px 0 0;
    color: var(--text-soft);
    font-size: .84rem;
}

.flying-star-period-table {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
}

.flying-star-period-row {
    display: grid;
    grid-template-columns: 90px 130px minmax(130px, 1fr) minmax(130px, 1fr);
    gap: 12px;
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    align-items: center;
}

.flying-star-period-row:first-child { border-top: 0; }
.flying-star-period-row.is-selected {
    background: var(--fs-purple-soft);
    color: var(--fs-purple-dark);
}

@media (max-width: 820px) {
    .flying-star-form {
        grid-template-columns: 1fr 1fr;
    }
    .flying-star-form .btn {
        grid-column: 1 / -1;
    }
    .flying-star-catalog {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .flying-star-form,
    .flying-star-summary,
    .flying-star-catalog {
        grid-template-columns: 1fr;
    }
    .flying-star-grid {
        width: min(100%, 430px);
        gap: 6px;
    }
    .flying-star-cell {
        min-height: 88px;
        padding: 7px 5px;
    }
    .flying-star-cell > strong { font-size: 1.6rem; }
    .flying-star-cell > em { font-size: .74rem; }
    .flying-star-period-row {
        grid-template-columns: 70px 1fr;
        gap: 3px 10px;
    }
}

/* Natal Flying Star chart */
.flying-star-form.is-natal {
    grid-template-columns: minmax(220px, 1.15fr) minmax(170px, .72fr) minmax(190px, .8fr) auto;
}

.flying-star-natal-section,
.flying-star-flight-rules {
    max-width: 980px;
    margin-inline: auto;
}

.flying-star-natal-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    justify-content: center;
    margin: 0 auto 14px;
    color: var(--text-soft);
    font-size: .84rem;
}

.flying-star-natal-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.flying-star-natal-legend b {
    display: inline-grid;
    place-items: center;
    min-width: 44px;
    padding: 3px 7px;
    border-radius: 999px;
    font-size: .72rem;
}

.flying-star-natal-legend .is-mountain,
.flying-star-number.is-mountain strong {
    color: #2d6a4f;
}

.flying-star-natal-legend b.is-mountain {
    background: #eaf6ef;
}

.flying-star-natal-legend .is-facing,
.flying-star-number.is-facing strong {
    color: #1f5d98;
}

.flying-star-natal-legend b.is-facing {
    background: #eaf3fb;
}

.flying-star-natal-legend .is-base,
.flying-star-number.is-base strong {
    color: var(--fs-purple-dark);
}

.flying-star-natal-legend b.is-base {
    background: var(--fs-purple-soft);
}

.flying-star-grid.is-natal {
    width: min(100%, 680px);
}

.flying-star-cell.is-natal {
    position: relative;
    min-height: 142px;
    justify-content: flex-start;
    padding: 9px 10px 12px;
    overflow: hidden;
}

.flying-star-cell.is-natal.is-facing-palace {
    box-shadow: inset 0 0 0 2px rgba(31, 93, 152, .25);
}

.flying-star-cell.is-natal.is-sitting-palace {
    box-shadow: inset 0 0 0 2px rgba(45, 106, 79, .25);
}

.flying-star-cell.is-natal.is-facing-palace.is-sitting-palace {
    box-shadow: inset 0 0 0 2px rgba(111, 59, 181, .24);
}

.flying-star-palace-label {
    min-height: 18px;
    margin-bottom: 4px;
}

.flying-star-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
    margin-top: 3px;
}

.flying-star-number {
    display: grid;
    justify-items: center;
    line-height: 1;
}

.flying-star-number small {
    color: var(--text-soft);
    font-size: .64rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .03em;
}

.flying-star-number strong {
    font-size: 1.62rem;
    line-height: 1.05;
}

.flying-star-number.is-base {
    margin-top: 6px;
}

.flying-star-number.is-base strong {
    font-size: 1.34rem;
}

.flying-star-palace-badge {
    position: absolute;
    bottom: 6px;
    padding: 2px 6px;
    border-radius: 999px;
    font-size: .58rem;
    font-style: normal;
    font-weight: 900;
    letter-spacing: .04em;
}

.flying-star-palace-badge.is-facing {
    right: 6px;
    color: #1f5d98;
    background: #eaf3fb;
}

.flying-star-palace-badge.is-sitting {
    left: 6px;
    color: #2d6a4f;
    background: #eaf6ef;
}

.flying-star-flight-cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.flying-star-flight-cards article {
    padding: 17px 18px;
    border: 1px solid var(--fs-border);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, #fff, #fbf8ff);
}

.flying-star-flight-cards article > span {
    display: block;
    color: var(--text-soft);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.flying-star-flight-cards article > strong {
    display: block;
    margin: 4px 0 8px;
    color: var(--fs-purple-dark);
    font-size: 1.12rem;
}

.flying-star-flight-cards p {
    margin: 6px 0;
    color: var(--text-main);
    font-size: .9rem;
    line-height: 1.55;
}

.flying-star-flight-cards small {
    color: var(--text-soft);
    font-weight: 700;
}

.flying-star-natal-prompt {
    max-width: 920px;
    margin: 20px auto 0;
    text-align: center;
    border-color: var(--fs-border);
    background: var(--fs-purple-soft);
}

.flying-star-natal-prompt strong {
    color: var(--fs-purple-dark);
    font-size: 1.05rem;
}

.flying-star-natal-prompt p {
    margin: 6px auto 0;
    max-width: 720px;
    color: var(--text-soft);
}

.flying-star-boundary-warning.is-compass {
    margin-top: 24px;
}

@media (max-width: 980px) {
    .flying-star-form.is-natal {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .flying-star-form.is-natal .btn {
        grid-column: 1 / -1;
    }
}

@media (max-width: 600px) {
    .flying-star-form.is-natal,
    .flying-star-flight-cards {
        grid-template-columns: 1fr;
    }
    .flying-star-grid.is-natal {
        width: min(100%, 440px);
    }
    .flying-star-cell.is-natal {
        min-height: 112px;
        padding: 6px 5px 9px;
    }
    .flying-star-number strong {
        font-size: 1.3rem;
    }
    .flying-star-number.is-base strong {
        font-size: 1.12rem;
    }
    .flying-star-number small {
        font-size: .56rem;
    }
    .flying-star-palace-badge {
        font-size: .5rem;
        padding: 2px 4px;
    }
}

/* Natal chart interpretation layer */
.flying-star-interpretation {
    max-width: 980px;
    margin-inline: auto;
}

.flying-star-interpretation .section-heading h2 small {
    display: inline-block;
    margin-left: 6px;
    color: var(--text-soft);
    font-size: .72em;
    font-weight: 700;
}

.flying-star-structure-card {
    padding: 18px;
    border: 1px solid var(--fs-border);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, #fbf8ff, #fff);
    box-shadow: var(--shadow-sm);
}

.flying-star-structure-card.is-aligned { border-color: #b9dcc7; background: linear-gradient(180deg, #f1faf5, #fff); }
.flying-star-structure-card.is-reversed { border-color: #ecd3a5; background: linear-gradient(180deg, #fff9ec, #fff); }
.flying-star-structure-card.is-facing { border-color: #bfd8ef; background: linear-gradient(180deg, #f2f8fd, #fff); }
.flying-star-structure-card.is-sitting { border-color: #c6dfcf; background: linear-gradient(180deg, #f2faf5, #fff); }

.flying-star-structure-title {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    align-items: baseline;
    justify-content: space-between;
}

.flying-star-structure-title span {
    color: var(--fs-purple-dark);
    font-size: 1.03rem;
    font-weight: 850;
}

.flying-star-structure-title strong {
    color: var(--text-main);
    font-size: .9rem;
}

.flying-star-structure-checks {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 14px 0;
}

.flying-star-structure-checks span {
    min-width: 0;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255,255,255,.78);
    color: var(--text-soft);
    font-size: .79rem;
}

.flying-star-structure-checks span b {
    display: block;
    margin-top: 2px;
    color: var(--text-main);
    font-size: .9rem;
}

.flying-star-structure-checks span.is-hit {
    border-color: var(--fs-border);
    background: var(--fs-purple-soft);
    color: var(--fs-purple-dark);
}

.flying-star-structure-card > p {
    margin: 0 0 8px;
    color: var(--text-main);
}

.flying-star-structure-card > small {
    display: block;
    color: var(--text-soft);
    line-height: 1.5;
}

.flying-star-palace-reading-heading {
    margin-top: 28px;
}

.flying-star-palace-readings {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.flying-star-palace-reading {
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
    overflow: hidden;
}

.flying-star-palace-reading.is-facing-palace {
    border-color: #a9cae6;
}

.flying-star-palace-reading.is-sitting-palace {
    border-color: #abd1b9;
}

.flying-star-palace-reading summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2px 10px;
    align-items: center;
    padding: 11px 12px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.flying-star-palace-reading summary::-webkit-details-marker { display: none; }

.flying-star-palace-reading summary::after {
    content: '+';
    grid-column: 2;
    grid-row: 1 / 3;
    color: var(--fs-purple-dark);
    font-size: 1.2rem;
    font-weight: 800;
}

.flying-star-palace-reading[open] summary::after { content: '−'; }

.flying-star-palace-reading summary > span {
    color: var(--text-main);
    font-size: .88rem;
    font-weight: 800;
}

.flying-star-palace-reading summary > strong {
    color: var(--fs-purple-dark);
    font-size: 1rem;
}

.flying-star-palace-reading summary > small {
    grid-column: 1;
    color: var(--text-soft);
    font-size: .7rem;
}

.flying-star-reading-markers {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding: 0 12px 8px;
}

.flying-star-reading-markers span {
    padding: 3px 7px;
    border-radius: 999px;
    background: #f4f4f5;
    color: var(--text-soft);
    font-size: .68rem;
    font-weight: 750;
}

.flying-star-reading-markers .is-sitting,
.flying-star-reading-markers .is-ruling-mountain { background: #eaf6ef; color: #2d6a4f; }
.flying-star-reading-markers .is-facing,
.flying-star-reading-markers .is-ruling-facing { background: #eaf3fb; color: #1f5d98; }
.flying-star-reading-markers .is-double-star { background: var(--fs-purple-soft); color: var(--fs-purple-dark); }

.flying-star-reading-summary {
    margin: 0;
    padding: 0 12px 10px;
    color: var(--text-soft);
    font-size: .79rem;
    line-height: 1.48;
}

.flying-star-reading-layers {
    display: grid;
    gap: 6px;
    padding: 0 12px 10px;
}

.flying-star-reading-layers article {
    padding: 8px 9px;
    border-radius: 9px;
    background: #fafafa;
}

.flying-star-reading-layers article.is-mountain { background: #f1f8f4; }
.flying-star-reading-layers article.is-facing { background: #f1f7fc; }
.flying-star-reading-layers article.is-base { background: #f7f3fc; }

.flying-star-reading-layers b,
.flying-star-reading-layers span,
.flying-star-reading-layers small {
    display: block;
}

.flying-star-reading-layers b { color: var(--text-main); font-size: .78rem; }
.flying-star-reading-layers span { margin-top: 2px; color: var(--text-soft); font-size: .72rem; }
.flying-star-reading-layers small { margin-top: 3px; color: var(--text-soft); font-size: .68rem; line-height: 1.4; }

.flying-star-element-relations {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    padding: 10px 12px 12px;
    border-top: 1px solid var(--border);
    background: #fcfcfd;
}

.flying-star-element-relations span {
    min-width: 0;
    color: var(--text-soft);
    font-size: .67rem;
    line-height: 1.35;
}

.flying-star-element-relations b {
    display: block;
    margin-bottom: 2px;
    color: var(--text-main);
    font-size: .66rem;
}

@media (max-width: 820px) {
    .flying-star-structure-checks,
    .flying-star-palace-readings {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .flying-star-structure-card { padding: 14px; }
    .flying-star-structure-checks,
    .flying-star-palace-readings {
        grid-template-columns: 1fr;
    }
    .flying-star-structure-checks {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .flying-star-element-relations {
        grid-template-columns: 1fr;
    }
}

/* Current-period context & advanced natal patterns */
.flying-star-evaluation-fields {
    grid-column: 1 / -1;
    border: 1px dashed var(--fs-border);
    border-radius: 12px;
    background: #fcfaff;
    overflow: hidden;
}

.flying-star-evaluation-fields summary {
    padding: 10px 12px;
    cursor: pointer;
    color: var(--fs-purple-dark);
    font-weight: 800;
    list-style: none;
}

.flying-star-evaluation-fields summary::-webkit-details-marker { display: none; }
.flying-star-evaluation-fields summary::after { content: ' +'; }
.flying-star-evaluation-fields[open] summary::after { content: ' −'; }
.flying-star-evaluation-fields summary small { color: var(--text-soft); font-weight: 500; }

.flying-star-evaluation-fields > div {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 0 12px 12px;
}

.flying-star-current-context,
.flying-star-advanced-patterns {
    max-width: 980px;
    margin-inline: auto;
}

.flying-star-current-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.flying-star-current-summary article {
    min-width: 0;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
}

.flying-star-current-summary article.is-current {
    border-color: var(--fs-border);
    background: var(--fs-purple-soft);
}

.flying-star-current-summary span,
.flying-star-current-summary small {
    display: block;
    color: var(--text-soft);
}

.flying-star-current-summary strong {
    display: block;
    margin: 3px 0;
    color: var(--fs-purple-dark);
    font-size: 1.15rem;
}

.flying-star-timeliness-grid {
    display: grid;
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 6px;
}

.flying-star-timeliness-grid article {
    min-width: 0;
    padding: 9px 5px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fafafa;
    text-align: center;
}

.flying-star-timeliness-grid article.is-current {
    border-color: #c8a9eb;
    background: #f4ecfd;
}

.flying-star-timeliness-grid article.is-future {
    border-color: #b9d9c3;
    background: #eef8f1;
}

.flying-star-timeliness-grid article.is-past {
    border-color: #e2d0aa;
    background: #fff8e8;
}

.flying-star-timeliness-grid b,
.flying-star-timeliness-grid span,
.flying-star-timeliness-grid small {
    display: block;
}

.flying-star-timeliness-grid b { color: var(--text-main); font-size: .76rem; }
.flying-star-timeliness-grid span { margin-top: 3px; color: var(--fs-purple-dark); font-size: .66rem; font-weight: 750; }
.flying-star-timeliness-grid small { margin-top: 2px; color: var(--text-soft); font-size: .62rem; line-height: 1.25; }

.flying-star-current-note {
    margin: 12px 0 0;
    color: var(--text-soft);
    font-size: .84rem;
    line-height: 1.55;
}

.flying-star-pattern-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.flying-star-pattern-card {
    min-width: 0;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
}

.flying-star-pattern-card.is-hit {
    border-color: #c8a9eb;
    background: #fbf7ff;
}

.flying-star-pattern-card.is-caution {
    border-color: #efd18b;
    background: #fff9e8;
}

.flying-star-pattern-card > span,
.flying-star-pattern-card > small {
    display: block;
    color: var(--text-soft);
}

.flying-star-pattern-card > strong {
    display: block;
    margin: 3px 0 7px;
    color: var(--fs-purple-dark);
    font-size: 1rem;
}

.flying-star-pattern-card > p {
    margin: 0 0 6px;
    color: var(--text-main);
    font-size: .84rem;
    line-height: 1.5;
}

.flying-star-pattern-method {
    margin-top: 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fcfcfd;
}

.flying-star-pattern-method > summary {
    padding: 11px 13px;
    cursor: pointer;
    color: var(--fs-purple-dark);
    font-weight: 800;
}

.flying-star-pattern-method .details-content {
    padding: 0 13px 12px;
}

.flying-star-pattern-method .details-content p {
    margin: 7px 0 0;
    color: var(--text-soft);
    font-size: .83rem;
    line-height: 1.5;
}

@media (max-width: 900px) {
    .flying-star-timeliness-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    .flying-star-current-summary,
    .flying-star-pattern-grid,
    .flying-star-evaluation-fields > div {
        grid-template-columns: 1fr;
    }
}

/* Annual Flying Stars */
.flying-star-annual-section {
    max-width: 980px;
    margin-inline: auto;
}

.flying-star-annual-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.flying-star-annual-summary article {
    min-width: 0;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
}

.flying-star-annual-summary article.is-annual-center {
    border-color: #d7bd8a;
    background: #fff9ec;
}

.flying-star-annual-summary span,
.flying-star-annual-summary small {
    display: block;
    color: var(--text-soft);
}

.flying-star-annual-summary strong {
    display: block;
    margin: 3px 0;
    color: var(--fs-purple-dark);
    font-size: 1.05rem;
}

.flying-star-grid.is-annual .flying-star-cell {
    background: #fffdf8;
}

.flying-star-grid.is-annual .flying-star-cell.is-center {
    border-color: #d7bd8a;
    background: #fff5dc;
}

.flying-star-grid.is-annual .flying-star-cell > strong {
    color: #8a601b;
}

.flying-star-annual-overlay {
    margin-top: 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fcfcfd;
    overflow: hidden;
}

.flying-star-annual-overlay > summary {
    padding: 11px 13px;
    cursor: pointer;
    color: var(--fs-purple-dark);
    font-weight: 800;
}

.flying-star-annual-overlay-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    padding: 0 13px 12px;
}

.flying-star-annual-overlay-grid article {
    min-width: 0;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
}

.flying-star-annual-overlay-grid span,
.flying-star-annual-overlay-grid small {
    display: block;
    color: var(--text-soft);
}

.flying-star-annual-overlay-grid strong {
    display: block;
    margin: 2px 0;
    color: #8a601b;
    font-size: .9rem;
}

.flying-star-annual-overlay > p,
.flying-star-annual-note {
    margin: 0;
    padding: 0 13px 13px;
    color: var(--text-soft);
    font-size: .82rem;
    line-height: 1.55;
}

.flying-star-annual-note {
    padding: 12px 0 0;
}

@media (max-width: 700px) {
    .flying-star-annual-summary,
    .flying-star-annual-overlay-grid {
        grid-template-columns: 1fr;
    }
}

/* Monthly Flying Stars: separate visual layer from annual/natal charts. */
.flying-star-monthly-section {
    border-top: 1px solid rgba(70, 102, 138, .16);
}

.flying-star-monthly-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 14px 0 16px;
}

.flying-star-monthly-summary article {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
    padding: 13px 14px;
    border: 1px solid rgba(70, 102, 138, .14);
    border-radius: 14px;
    background: rgba(248, 251, 255, .78);
}

.flying-star-monthly-summary article.is-monthly-center {
    background: rgba(238, 246, 255, .92);
}

.flying-star-monthly-summary span,
.flying-star-monthly-summary small {
    color: var(--muted, #667085);
}

.flying-star-monthly-summary strong {
    font-size: 1.04rem;
    line-height: 1.35;
}

.flying-star-grid.is-monthly .flying-star-cell {
    background: linear-gradient(180deg, rgba(248, 252, 255, .98), rgba(239, 247, 255, .84));
}

.flying-star-grid.is-monthly .flying-star-cell.is-center {
    outline: 2px solid rgba(59, 100, 148, .20);
    outline-offset: -2px;
}

.flying-star-grid.is-monthly .flying-star-cell > strong {
    color: #2f5f91;
}

.flying-star-monthly-overlay {
    margin-top: 16px;
    border: 1px solid rgba(70, 102, 138, .14);
    border-radius: 14px;
    background: rgba(250, 252, 255, .78);
    overflow: hidden;
}

.flying-star-monthly-overlay > summary {
    cursor: pointer;
    padding: 13px 15px;
    font-weight: 700;
}

.flying-star-monthly-overlay-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    padding: 0 14px 14px;
}

.flying-star-monthly-overlay-grid article {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .86);
}

.flying-star-monthly-overlay-grid span,
.flying-star-monthly-overlay-grid small {
    color: var(--muted, #667085);
}

.flying-star-monthly-overlay-grid strong {
    color: #2f5f91;
}

.flying-star-monthly-overlay > p,
.flying-star-monthly-note {
    margin: 0;
    padding: 0 14px 14px;
    color: var(--muted, #667085);
    line-height: 1.6;
}

.flying-star-monthly-note {
    margin-top: 14px;
    padding: 0;
}

.flying-star-boundary-warning.is-monthly {
    border-style: dashed;
}

@media (max-width: 760px) {
    .flying-star-monthly-summary,
    .flying-star-monthly-overlay-grid {
        grid-template-columns: 1fr;
    }
}

/* Phi Tinh V1 floor-plan integration. Geometry only; no Bát Trạch blending. */
.flying-floor-fields {
    grid-column: 1 / -1;
    margin-top: 4px;
    border: 1px solid rgba(70, 102, 138, .16);
    border-radius: 14px;
    background: rgba(250, 252, 255, .78);
    overflow: hidden;
}

.flying-floor-fields > summary {
    cursor: pointer;
    padding: 13px 15px;
    font-weight: 800;
    color: var(--fs-purple-dark);
}

.flying-floor-fields > summary small { color: var(--text-soft); font-weight: 500; }
.flying-floor-fields-body { padding: 0 15px 15px; }
.flying-floor-intro { margin: 0 0 12px; color: var(--text-soft); line-height: 1.6; }

.flying-floor-north-confirm {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    gap: 9px;
    margin: 0 0 12px;
    padding: 10px 12px;
    border-radius: 12px;
    background: #f7fafc;
}
.flying-floor-north-confirm input { width: auto !important; flex: 0 0 auto; }

.flying-floor-geometry-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
}

.flying-floor-geometry-grid label,
.flying-floor-feature-inputs label {
    min-width: 0;
}

.flying-floor-feature-inputs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.flying-floor-feature-inputs fieldset {
    min-width: 0;
    margin: 0;
    padding: 10px;
    border: 1px solid rgba(70, 102, 138, .15);
    border-radius: 12px;
}

.flying-floor-feature-inputs legend { padding: 0 5px; font-weight: 800; }
.flying-floor-feature-inputs fieldset { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.flying-floor-feature-inputs fieldset legend { grid-column: 1 / -1; }

.flying-floor-editor {
    margin-top: 14px;
    padding: 12px;
    border: 1px solid rgba(70, 102, 138, .14);
    border-radius: 14px;
    background: #fff;
}

.flying-floor-editor-tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.flying-floor-editor-tools button {
    border: 1px solid rgba(70, 102, 138, .24);
    border-radius: 999px;
    background: #f7f9fc;
    padding: 7px 12px;
    cursor: pointer;
    font-weight: 800;
}
.flying-floor-editor-tools button.is-active { background: #eef4ff; border-color: #7893b8; color: #274d7b; }
.flying-floor-editor-tools span { color: var(--text-soft); font-size: .86rem; }

.flying-floor-canvas-wrap { width: min(100%, 660px); margin: 0 auto; }
.flying-floor-north { text-align: center; margin-bottom: 5px; font-size: .82rem; font-weight: 800; color: #345477; }

.flying-floor-canvas,
.flying-floor-result-board {
    --plan-ratio: 1.2;
    position: relative;
    width: min(100%, 620px);
    aspect-ratio: var(--plan-ratio);
    min-height: 220px;
    max-height: 620px;
    margin: 0 auto;
    border: 2px solid #8ea1b8;
    border-radius: 12px;
    background:
        linear-gradient(to right, rgba(84, 112, 143, .07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(84, 112, 143, .07) 1px, transparent 1px),
        #fbfdff;
    background-size: 12.5% 12.5%;
    overflow: hidden;
    cursor: crosshair;
}

.flying-floor-axis,
.flying-floor-result-axis {
    position: absolute;
    z-index: 2;
    pointer-events: none;
    border-color: rgba(48, 84, 120, .34);
    border-style: dashed;
}
.flying-floor-axis.is-horizontal,
.flying-floor-result-axis.is-horizontal { left: 0; right: 0; top: 50%; border-top-width: 1px; }
.flying-floor-axis.is-vertical,
.flying-floor-result-axis.is-vertical { top: 0; bottom: 0; left: 50%; border-left-width: 1px; }

.flying-floor-center-marker,
.flying-floor-result-center {
    position: absolute;
    z-index: 5;
    transform: translate(-50%, -50%);
    padding: 3px 6px;
    border-radius: 999px;
    background: #344e6a;
    color: #fff;
    font-size: .7rem;
    font-weight: 800;
    pointer-events: none;
}

.flying-floor-marker,
.flying-floor-result-marker {
    position: absolute;
    z-index: 7;
    transform: translate(-50%, -50%);
    min-width: 38px;
    padding: 5px 7px;
    border: 2px solid #fff;
    border-radius: 999px;
    box-shadow: 0 2px 8px rgba(31, 52, 74, .18);
    background: #dce9f7;
    color: #223e5d;
    text-align: center;
    font-size: .72rem;
    font-weight: 900;
    pointer-events: none;
}
.flying-floor-marker.is-kitchen,
.flying-floor-result-marker.is-kitchen { background: #f9e8cc; color: #6f4b13; }
.flying-floor-marker.is-bedroom,
.flying-floor-result-marker.is-bedroom { background: #eadff6; color: #513771; }
.flying-floor-result-marker.is-cutout-warning { outline: 2px dashed #a8604b; outline-offset: 2px; }

.flying-floor-cutout,
.flying-floor-result-cutout {
    position: absolute;
    z-index: 4;
    width: 33.333%;
    height: 33.333%;
    display: none;
    background: repeating-linear-gradient(135deg, rgba(126, 105, 95, .16) 0 7px, rgba(255,255,255,.88) 7px 14px);
    border: 1px dashed rgba(109, 84, 74, .5);
    pointer-events: none;
}
.flying-floor-editor[data-outline="l_nw"] .flying-floor-cutout,
.flying-floor-result-board.outline-l_nw .flying-floor-result-cutout { display:block; top:0; left:0; }
.flying-floor-editor[data-outline="l_ne"] .flying-floor-cutout,
.flying-floor-result-board.outline-l_ne .flying-floor-result-cutout { display:block; top:0; right:0; }
.flying-floor-editor[data-outline="l_sw"] .flying-floor-cutout,
.flying-floor-result-board.outline-l_sw .flying-floor-result-cutout { display:block; bottom:0; left:0; }
.flying-floor-editor[data-outline="l_se"] .flying-floor-cutout,
.flying-floor-result-board.outline-l_se .flying-floor-result-cutout { display:block; bottom:0; right:0; }
.flying-floor-editor > small { display:block; margin-top:9px; color:var(--text-soft); line-height:1.5; }

.flying-floor-result-section { border-top: 1px solid rgba(70, 102, 138, .16); }
.flying-floor-result-layout { display:grid; grid-template-columns:minmax(280px, .9fr) minmax(0, 1.1fr); gap:18px; align-items:start; }
.flying-floor-result-board { cursor: default; }
.flying-floor-result-north { position:absolute; z-index:8; top:7px; left:50%; transform:translateX(-50%); font-size:.72rem; font-weight:900; color:#345477; }
.flying-floor-result-caption { margin:8px 0 0; color:var(--text-soft); font-size:.82rem; text-align:center; line-height:1.5; }

.flying-floor-feature-results { display:grid; gap:9px; }
.flying-floor-feature-result { display:grid; grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr); gap:12px; padding:12px 13px; border:1px solid rgba(70,102,138,.14); border-radius:12px; background:#fff; }
.flying-floor-feature-result.is-warning { border-style:dashed; border-color:#bd8066; }
.flying-floor-feature-result span,
.flying-floor-feature-result small { display:block; color:var(--text-soft); }
.flying-floor-feature-result strong { display:block; margin:2px 0; color:#2f4e74; }
.flying-floor-feature-result dl { margin:0; display:grid; gap:5px; }
.flying-floor-feature-result dl div { display:grid; grid-template-columns:76px 1fr; gap:8px; }
.flying-floor-feature-result dt { color:var(--text-soft); font-size:.78rem; }
.flying-floor-feature-result dd { margin:0; font-size:.84rem; font-weight:700; }

.flying-floor-readiness,
.flying-floor-warning,
.flying-floor-separation-note {
    display:flex;
    gap:8px;
    align-items:flex-start;
    margin-top:12px;
    padding:11px 13px;
    border-radius:12px;
    line-height:1.55;
}
.flying-floor-readiness { background:#f7fafc; border:1px solid rgba(70,102,138,.14); }
.flying-floor-readiness strong { white-space:nowrap; }
.flying-floor-warning { background:#fff7f0; border:1px dashed #d2a081; color:#704831; }
.flying-floor-warning strong { white-space:nowrap; }
.flying-floor-separation-note { background:#f5f4fb; border:1px solid rgba(87,75,135,.14); color:#504a68; }

@media (max-width: 900px) {
    .flying-floor-geometry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .flying-floor-feature-inputs { grid-template-columns: 1fr; }
    .flying-floor-result-layout { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .flying-floor-geometry-grid { grid-template-columns: 1fr; }
    .flying-floor-feature-inputs fieldset { grid-template-columns: 1fr 1fr; }
    .flying-floor-canvas,
    .flying-floor-result-board { min-height: 200px; border-radius:10px; }
    .flying-floor-feature-result { grid-template-columns:1fr; }
    .flying-floor-readiness,
    .flying-floor-warning,
    .flying-floor-separation-note { flex-direction:column; }
}