// ─── Natus (Pick Sky) overlay ────────────────────────────────────────────────
// Gaussian backdrop + centred modal, matching the gate/sig overlay pattern.
// Open state: html.natus-open (added by JS on PICK SKY click).
//
// Layout: header / two-column body (form | wheel) / footer
// Collapses to stacked single-column below 600 px.

// ── Scroll-lock ───────────────────────────────────────────────────────────────

html.natus-open {
    overflow: hidden;

    #id_aperture_fill { opacity: 1; }
}

// ── Backdrop ──────────────────────────────────────────────────────────────────

.natus-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(5px);
    z-index: 100;
    pointer-events: none;

    // Hidden until html.natus-open
    opacity: 0;
    transition: opacity 0.15s ease;
}

html.natus-open .natus-backdrop {
    opacity: 1;
}

// ── Overlay shell (positions + scrolls the modal) ─────────────────────────────

.natus-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 120;
    overflow-y: auto;
    overscroll-behavior: contain;
    pointer-events: none;

    // Hidden until html.natus-open
    visibility: hidden;

    @media (orientation: landscape) {
        $sidebar-w: 4rem;
        left: $sidebar-w;
        right: $sidebar-w;
    }
}

html.natus-open .natus-overlay {
    visibility: visible;
    pointer-events: none;   // modal itself is pointer-events: auto
}

// ── Modal panel ───────────────────────────────────────────────────────────────

.natus-modal {
    pointer-events: auto;
    display: flex;
    flex-direction: column;
    width: 92vw;
    max-width: 840px;
    max-height: 92vh;
    border: 0.1rem solid rgba(var(--terUser), 0.25);
    border-radius: 0.5rem;
    background: rgba(var(--priUser), 1);
    overflow: hidden;

    // Fade + slide in
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

html.natus-open .natus-modal {
    opacity: 1;
    transform: translateY(0);
}

// ── Header ────────────────────────────────────────────────────────────────────

.natus-modal-header {
    flex-shrink: 0;
    padding: 0.6rem 1rem;
    border-bottom: 0.1rem solid rgba(var(--terUser), 0.15);
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 0.75rem;

    h2 {
        margin: 0;
        font-size: 1.1rem;
        letter-spacing: 0.06em;

        span { color: rgba(var(--secUser), 1); }
    }

    p {
        margin: 0;
        font-size: 0.7rem;
        opacity: 0.55;
    }
}

// ── Body: two columns ─────────────────────────────────────────────────────────

.natus-modal-body {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: row;
    overflow: hidden;
}

// Form column — fixed width, scrollable
.natus-form-col {
    flex: 0 0 240px;
    overflow-y: auto;
    padding: 0.9rem 1rem;
    border-right: 0.1rem solid rgba(var(--terUser), 0.12);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

// Wheel column — fills remaining space
.natus-wheel-col {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background: rgba(var(--priUser), 0.5);
    position: relative;
}

.natus-svg {
    display: block;
    width: 100%;
    height: 100%;
    aspect-ratio: 1 / 1;
    max-width: 400px;
    max-height: 400px;
}

// ── Form fields ───────────────────────────────────────────────────────────────

.natus-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;

    label {
        font-size: 0.6rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        color: rgba(var(--quaUser), 0.8);
    }

    input {
        width: 100%;
        // inherits global input styles
    }

    small {
        font-size: 0.58rem;
        opacity: 0.45;
        line-height: 1.3;
    }
}

// Place search field wrapper: text input + geo button inline
.natus-place-field { position: relative; }

.natus-place-wrap {
    display: flex;
    gap: 0.4rem;
    align-items: center;

    input { flex: 1; min-width: 0; }
    .btn-sm { flex-shrink: 0; }
}

// Nominatim suggestion dropdown
.natus-suggestions {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 2px);
    z-index: 10;
    background: rgba(var(--priUser), 1);
    border: 0.1rem solid rgba(var(--terUser), 0.3);
    border-radius: 0.3rem;
    overflow-y: auto;
    max-height: 10rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.natus-suggestion-item {
    display: block;
    width: 100%;
    padding: 0.4rem 0.6rem;
    text-align: left;
    background: none;
    border: none;
    border-bottom: 0.05rem solid rgba(var(--terUser), 0.1);
    font-size: 0.65rem;
    color: rgba(var(--ninUser), 0.85);
    cursor: pointer;
    line-height: 1.35;

    &:last-child { border-bottom: none; }

    &:hover, &:focus {
        background: rgba(var(--terUser), 0.12);
        color: rgba(var(--ninUser), 1);
        outline: none;
    }
}

// Coords row: lat | lon (read-only, populated by place selection)
.natus-coords {
    flex-direction: row;
    align-items: flex-end;
    gap: 0.4rem;

    > div {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        gap: 0.25rem;

        label {
            font-size: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(var(--quaUser), 0.8);
        }

        input {
            width: 100%;
            opacity: 0.6;
            cursor: default;
        }
    }
}

// ── Status line ───────────────────────────────────────────────────────────────

.natus-status {
    font-size: 0.65rem;
    opacity: 0.6;
    min-height: 1rem;
    text-align: center;

    &--error {
        opacity: 1;
        color: rgba(var(--priRd), 1);
    }
}

// ── Footer ────────────────────────────────────────────────────────────────────

.natus-modal-footer {
    flex-shrink: 0;
    padding: 0.6rem 1rem;
    border-top: 0.1rem solid rgba(var(--terUser), 0.15);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

// ── Narrow / portrait ─────────────────────────────────────────────────────────

@media (max-width: 600px) {
    .natus-modal {
        width: 96vw;
        max-height: 96vh;
    }

    .natus-modal-body {
        flex-direction: column;
        overflow-y: auto;
    }

    .natus-form-col {
        flex: 0 0 auto;
        border-right: none;
        border-bottom: 0.1rem solid rgba(var(--terUser), 0.12);
    }

    .natus-wheel-col {
        flex: 0 0 280px;
    }
}

// ── Sidebar z-index sink (landscape sidebars must go below backdrop) ───────────

@media (orientation: landscape) {
    html.natus-open body .container .navbar,
    html.natus-open body #id_footer {
        z-index: 90;
    }
}