/* ============================================================
   BASE / RESET
   ============================================================ */
body{
    margin: 0;
}

/* ============================================================
   PAGE BACKGROUND
   ============================================================ */
#page-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(assets/index_background_image.jpeg);
    background-size: cover;
    background-position: center;
    z-index: -1;
}

/* ============================================================
   STICKY FOOTER LAYOUT
   these settings prevent the footer from appearing in the middle
   of the screen if there is not enough content to fill the page
   ============================================================ */
main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.nav-wrapper {
    position: relative; /* anchors brand-logo's centering and #upload-new-pdf-btn's left placement to the nav bar itself, not the viewport */
    --nav-scale: 1; /* 1 = 0.8rem/36px/normal padding; 0.75 = the 0.6rem floor. Set by JS. */
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    height: calc(64px * var(--nav-scale));
    padding: 0 20px;
    box-sizing: border-box;
    transition: height 0.12s ease-out;
}
.nav-wrapper.nav-wrap-2-row {
    --nav-scale: 1; /* force full size once wrapping to 2 rows */
    flex-wrap: wrap;
    height: auto;
    padding-top: 10px;
    padding-bottom: 10px;
}
.transparent {
    background-color: rgba(0, 0, 0, 0) !important;
}
.nav-btn {
    display: inline-flex;
    flex-shrink: 0; /* stops flex from squishing buttons on its own - all
                        shrinking is driven explicitly through --nav-scale instead */
    padding: 0 5px;
}
.nav-wrapper.nav-wrap-2-row .nav-btn {
    margin-bottom: 8px;
}
/* font-size, height, and padding all scale together off the same variable,
   so buttons shrink proportionally rather than just their text */
.nav-btn > a.btn {
    font-size: calc(0.8rem * var(--nav-scale));
    height: calc(36px * var(--nav-scale));
    line-height: calc(36px * var(--nav-scale));
    padding: 0 calc(16px * var(--nav-scale));
}
nav .brand-logo {
    left: 50%;
    top: 50%;
    position: absolute;
    color: black;
    display: inline-block;
    font-size:  clamp(5px, 2.1rem, 2.1rem);
    padding: 0;
    transform: translate(-50%, -50%);
    text-decoration: none;
}
/* upload_pdf_page.php's nav button. Deliberately NOT using .left (float) -
   floats have no effect on children of a flex container, and .nav-wrapper
   is display:flex, so a float-based approach silently does nothing here.
   Absolute positioning (same technique as .brand-logo above) sidesteps
   that entirely and keeps the button pinned to the left regardless of
   the nav's flex layout or scaling. */
#upload-new-pdf-btn {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}
/* ============================================================
   BUTTON / COLOR UTILITIES
   ============================================================ */
.blue {
    background-color: #1976D2;
}
.green {
    background-color: rgb(38, 113, 40);
}
/* generic red button state, mirrors .blue/.green - used to mark a
   reference-grid button as "currently being edited" and to flip the
   submit button into its "Edit in Database" state */
.red {
    background-color: #c62828;
}
.btn{
    text-decoration: none;
    color: #fff;
    text-align: center;
    letter-spacing: .5px;
    -webkit-transition: background-color .2s ease-out;
    transition: background-color .2s ease-out;
    cursor: pointer;
    border: none;
    border-radius: 2px;
    display: inline-block;
    height: 36px;
    line-height: 36px;
    padding: 0 16px;
    text-transform: uppercase;
    vertical-align: middle;
    -webkit-tap-highlight-color: transparent;
}
.btn:active{
    background-color: #3c5b7a;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 400;
}
h5 {
    font-size: clamp(5px, 1.64rem, 1.64rem);
    line-height: 110%;
    margin: 1.0933333333rem 0 .656rem 0;
}
html {
    line-height: 1.5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    font-weight: normal;
    font-size:  clamp(5px, large, large);
    color: rgba(0, 0, 0, 0.87);
}
.small-text {
    font-size: 0.8rem;
}

/* ============================================================
   GENERAL LAYOUT / MISC UTILITY CLASSES
   ============================================================ */
.z-depth-1, nav, .card-panel, .card, .toast, .btn, .dropdown-content, .collapsible, .sidenav {
    box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.12), 0 1px 5px 0 rgba(0, 0, 0, 0.2);
}
.black {
    background-color: #000 !important;
}
.grey-text {
    color: #9e9e9e !important;
}
.black-text {
    color: black !important;
}
.white {
    background-color: #fff !important;
}
.overlap-box{
    background: #f8f8f8;
    width: 30%;
    padding-top: 5px;
    padding-bottom: 20px;
    margin-top: 70px;
    display: block;
}
#overlap-box-welcome{
    margin-top: 20px;
}
.container{
    margin: 0 auto;
    max-width: 1280px;
    display: block;
}
.button-container-div{
    padding: 20px 40px 0 40px;
}
.gray-background{
    background-color: #6e6e6eff;
}
.right {
    float: right !important;
    margin-right: 20px;
}
.left {
    float: left !important;
}
.center{
    text-align: center;
}

/* ============================================================
   GENERIC FORM / INPUT STYLES (site-wide underline style)
   ============================================================ */
label {
    font-size: .8rem;
    color: #9e9e9e;
}
input[type=text]:not(.browser-default) {
    background-color: transparent;
    border: none;
    border-bottom: 1px solid #9e9e9e;
    border-radius: 0;
    outline: none;
    height: 3rem;
    width: 100%;
    font-size: 16px;
    margin: 0 0 8px 0;
    padding: 0;
    -webkit-box-shadow: none;
    box-shadow: none;
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
    -webkit-transition: border .3s, -webkit-box-shadow .3s;
    transition: border .3s, -webkit-box-shadow .3s;
    transition: box-shadow .3s, border .3s;
    transition: box-shadow .3s, border .3s, -webkit-box-shadow .3s;
}
input[type="text" i] {
    padding-block: 1px;
    padding-inline: 2px;
}
form{
    max-width: 460px;
    margin: 20px auto;
    padding-top: 5px;
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 20px;
}

/* ============================================================
   DASHBOARD PAGE
   ============================================================ */
.dashboard-menu-button-container{
    display: inline-block;
    margin: 0;
}
.dashboard-container{
    margin-top: 0;
    margin-bottom: 0;
    margin-left: 20px;
    margin-right: 20px;
    max-width: 1280px;
    display: block;
}

/* ============================================================
   UPLOAD PDF PAGE - review/edit form (#edit-form-container)
   Compact, boxed inputs override the site-wide underline-only
   text input style, since a dense grid of small fields reads
   better boxed.
   ============================================================ */
#edit-form-container .field-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eee;
}
#edit-form-container .field-block {
    display: flex;
    flex-direction: column;
}
#edit-form-container .field-block label {
    font-size: 0.72rem;
    color: #757575;
    margin-bottom: 3px;
    text-transform: uppercase;
    letter-spacing: .3px;
}
#edit-form-container input[type="text"] {
    border: 1px solid #ccc !important;
    border-radius: 3px;
    padding: 5px 7px !important;
    font-size: 0.85rem;
    height: auto !important;
    width: 140px !important; /* explicit base width - width-half/width-large below scale relative to this */
    margin: 0 !important;
    box-sizing: border-box;
}
#edit-form-container .field-block.width-half input[type="text"] {
    width: 70px !important; /* half of the 140px base */
}
#edit-form-container .field-block.width-large input[type="text"] {
    width: 210px !important; /* 150% of the 140px base */
}
#edit-form-container .field-block.width-three-quarters input[type="text"] {
    width: 105px !important;
}
#edit-form-container .field-block.width-extra-large input[type="text"] {
    width: 300px !important;
}
#edit-form-container .field-block.field-highlight-yellow {
    background-color: #fff9c4; /* light yellow - reserved for Date, the one highlighted field that ISN'T foreign-key validated */
    padding: 6px 8px 8px 8px;
    border-radius: 4px;
}
#edit-form-container .field-block.field-highlight-blue {
    background-color: #bbdefb; /* light blue - marks a field that must match an existing database value */
    padding: 6px 8px 8px 8px;
    border-radius: 4px;
}
#edit-form-container h6 {
    font-weight: 600;
    color: #444;
    margin: 22px 0 8px 0;
    font-size: 0.95rem;
}
#edit-form-container .leg-block {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 14px;
    margin-bottom: 18px;
}
#edit-form-container .leg-columns {
    display: flex;
    margin-top: 12px;
}
#edit-form-container .leg-column-left {
    flex: 1;
    padding-right: 20px;
    border-right: 1px solid #ccc; /* the vertical divider between Passengers and Maneuvers */
}
#edit-form-container .leg-column-right {
    flex: 1;
    padding-left: 20px;
}
#edit-form-container .leg-columns > div > label {
    display: block;
    font-size: 0.72rem;
    color: #757575;
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 8px;
    font-weight: bold;
}
#edit-form-container .passenger-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
}
#edit-form-container .add-activity-btn,
#edit-form-container .add-operation-btn {
    display: block; /* stacks the PIC and SIC buttons one under the other, rather than side-by-side inline */
    font-size: 0.75rem;
    padding: 0 10px;
    height: 28px;
    line-height: 28px;
    margin-top: 4px;
}
#edit-form-container .duty-entries,
#edit-form-container .activity-entries,
#edit-form-container .duty-operation-entries {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    width: 100%;
}
#edit-form-container .activity-entries,
#edit-form-container .duty-operation-entries {
    margin-top: 10px;
}
#edit-form-container .duty-entry-row,
#edit-form-container .activity-entry-row,
#edit-form-container .operation-entry-row,
#edit-form-container .duty-operation-entry-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}
.review-header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    min-height: 36px;
}
.review-header h5 {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    white-space: nowrap;
}

/* ============================================================
   DATABASE EDIT PAGE - dynamic table editor
   ============================================================ */

/* ---- container override: editor is always at least 90% of the
   screen, even though .container elsewhere caps out at 1280px ---- */
#gui-area-container.gui-area-editor-active {
    max-width: none;
}

/* ---- overall wrapper: left form / divider / right reference grid ---- */
.edit-table-wrapper {
    display: flex;
    align-items: stretch;
    width: 100%;
    min-width: 90vw;
    margin-top: 10px;
    box-sizing: border-box;
}
.edit-table-left {
    padding: 20px;
    box-sizing: border-box;
}
.edit-table-divider {
    width: 1px;
    align-self: stretch;
    background-color: #ddd;
    margin: 25px 24px; /* 25px gap top/bottom so the line doesn't touch the container edges */
}
.edit-table-right {
    flex: 1 1 auto;
    padding: 20px;
    box-sizing: border-box;
    min-width: 0; /* lets the button row shrink instead of overflowing the flex row */
    position: relative; /* anchors the record modal */
}

/* ---- left section: add/edit form fields ---- */
.edit-table-field-block {
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* left-aligned, including checkboxes */
    margin-bottom: 14px;
}
.edit-table-field-block label {
    font-size: 1.08rem;
    color: #757575;
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 3px;
}
.edit-table-field-block input[type="text"] {
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 6px 8px;
    font-size: 0.9rem;
    box-sizing: border-box;
    width: 100%;
}
.edit-table-field-block input[type="checkbox"] {
    margin: 0;
}
.edit-table-status {
    margin-top: 10px;
    text-align: center;
}

/* ---- right section: reference grid of existing records ---- */
.edit-table-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.edit-table-key-btn {
    width: auto; /* sized to its own text rather than a fixed grid cell */
    white-space: nowrap;
}

/* ---- record modal: compact popup showing one record's full data ---- */
.edit-table-record-modal {
    position: absolute;
    width: fit-content;
    max-width: calc(100% - 20px);
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    z-index: 5;
    box-sizing: border-box;
    overflow: visible; /* so the close/edit buttons can overhang without being clipped */
    opacity: 0;
}
.edit-table-record-modal-close {
    position: absolute;
    top: -13px;   /* 50% of the 26px diameter, so it overhangs the top edge */
    right: -13px; /* 50% of the 26px diameter, so it overhangs the right edge */
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: none;
    background-color: #1976D2;
    color: #fff;
    font-size: 0.8rem;
    line-height: 26px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    z-index: 6;
}
.edit-table-record-modal-edit {
    position: absolute;
    top: -13px;   /* same 13px overhang as the close button */
    left: -13px;
    height: 26px; /* matches the close button's height */
    padding: 0 10px;
    border-radius: 4px;
    border: none;
    background-color: #1976D2;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: .5px;
    line-height: 26px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    z-index: 6;
}
.edit-table-record-modal-edit:disabled {
    opacity: 0.5;
    cursor: default;
}
.edit-table-record-modal-inner {
    overflow-x: hidden;
}
.edit-table-record-list {
    display: grid;
    grid-template-columns: max-content minmax(80px, 1fr);
    column-gap: 24px;
    margin-top: 10px;
}
.edit-table-record-row {
    display: contents; /* the row div stops being a box itself - its two
                           children (label, value) become direct grid items,
                           lining up in the grid's two columns */
}
.edit-table-record-label {
    font-size: 0.75rem;
    color: #757575;
    text-transform: uppercase;
    letter-spacing: .3px;
    white-space: nowrap;
    padding-bottom: 6px;
    border-bottom: 1px solid #f0f0f0;
}
.edit-table-record-value {
    font-size: 0.9rem;
    color: #212121;
    text-align: right;
    word-break: break-word;
    padding-bottom: 6px;
    border-bottom: 1px solid #f0f0f0;
}

/* ---- foreign-key picker: small round "V" icon next to a required
   field's label, and the modal it opens listing existing values from
   the referenced table ---- */
.fk-picker-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    min-width: 20px;
    margin-left: 6px;
    border-radius: 50%;
    border: none;
    background-color: #1976D2;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
    padding: 0;
    cursor: pointer;
    vertical-align: middle;
    box-sizing: border-box;
}
.fk-picker-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    margin: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30; /* above the validation modal's 20, since the picker can open from inside it */
}
.fk-picker-modal {
    position: relative;
    background: #fff;
    border-radius: 6px;
    padding: 24px;
    width: fit-content;
    max-width: min(90vw, 700px);
    max-height: 80vh;
    overflow: visible; /* so the close button can overhang without being clipped */
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
}
.fk-picker-inner {
    max-height: calc(80vh - 48px); /* 80vh minus the modal's own top+bottom padding */
    overflow-y: auto;
    overflow-x: hidden;
}
.fk-picker-close {
    position: absolute;
    top: -13px;
    right: -13px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: none;
    background-color: #1976D2;
    color: #fff;
    font-size: 0.8rem;
    line-height: 26px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    z-index: 6;
}

.fk-picker-grid-wrap {
    margin-top: 14px;
}

/* ---- foreign-key picker: color-by-frequency buttons
   Colors a picker button by how often that value is actually used as a
   foreign key elsewhere in the database - see get_foreign_key_frequency.php
   and buildFrequencyColorMap() in database_edit_page.php and
   upload_pdf_page.php (same reusable picker component, ported near-
   verbatim between the two pages). 13 tiers, .fk-freq-tier-0 = most used
   down to .fk-freq-tier-12 = least/never used. Both JS copies only ever
   pick a tier INDEX (0-12) - never a color value - so this is the only
   place any of these colors are actually defined. This coloring (and the
   fetch behind it) is skipped entirely for the Flight Sheet ID picker -
   see the foreignKeyInfo.table === 'flight_sheets' check in both
   openForeignKeyPicker() implementations - so that field's buttons stay
   plain .blue with no tier class added, no matter how it's rendered
   here. No legend is shown alongside these colors (removed - the
   buttons' alphabetized labels already make the coloring legible enough
   on their own).
   background-color needs !important here because these buttons also
   carry .blue (also !important, see BUTTON / COLOR UTILITIES above) -
   without it .blue would win regardless of class order on the element,
   since equal-specificity !important rules are decided by source order
   in the stylesheet, not by the order of classes in the HTML. Text
   color per swatch is whichever of black/white gives the better WCAG
   contrast ratio against that swatch's background. ---- */
.fk-freq-tier-0  { background-color: #D42E26 !important; color: #fff !important; } /* most frequent */
.fk-freq-tier-1  { background-color: #F9801D !important; color: #000 !important; }
.fk-freq-tier-2  { background-color: #FFD83D !important; color: #000 !important; }
.fk-freq-tier-3  { background-color: #80C71F !important; color: #000 !important; }
.fk-freq-tier-4  { background-color: #5D7C15 !important; color: #fff !important; }
.fk-freq-tier-5  { background-color: #3AB3DA !important; color: #000 !important; }
.fk-freq-tier-6  { background-color: #169C9D !important; color: #000 !important; }
.fk-freq-tier-7  { background-color: #3C44A9 !important; color: #fff !important; }
.fk-freq-tier-8  { background-color: #F38CAA !important; color: #000 !important; }
.fk-freq-tier-9  { background-color: #C64FBD !important; color: #000 !important; }
.fk-freq-tier-10 { background-color: #8932B7 !important; color: #fff !important; }
.fk-freq-tier-11 { background-color: #9C9D97 !important; color: #000 !important; }
.fk-freq-tier-12 { background-color: #1D1C21 !important; color: #fff !important; } /* least/never used */

/* ---- validation modal: shown when a required/foreign-key field is
   blank or doesn't match an existing value, with an optional inline
   form to add the missing value as a new record ---- */
.validation-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
}
.validation-modal {
    position: relative;
    background: #fff;
    border-radius: 6px;
    padding: 24px;
    width: fit-content;
    max-width: min(90vw, 900px);
    max-height: 85vh;
    overflow: visible; /* lets the close button overhang without being clipped */
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
}
.validation-modal-inner {
    max-height: calc(85vh - 48px); /* 85vh minus the modal's own top+bottom padding */
    overflow-y: auto;
    overflow-x: hidden;
}
.validation-modal-close {
    position: absolute;
    top: -13px;
    right: -13px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: none;
    background-color: #1976D2;
    color: #fff;
    font-size: 0.8rem;
    line-height: 26px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    z-index: 6;
}
.validation-modal-heading {
    margin-top: 0;
}
.validation-modal-message {
    color: #757575;
    margin-bottom: 14px;
}
.validation-modal-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}
.validation-modal-form .edit-table-field-block input[type="text"] {
    width: auto; /* sized explicitly by JS to fit its content instead of the shared 100% rule */
    white-space: nowrap;
}
.validation-modal-status {
    text-align: center;
    margin-top: 8px;
}

/* ============================================================
   FLIGHT SHEETS EDITOR (database_edit_page.php)
   Scoped under .flight-sheet-editor (applied to that editor's own
   wrapper - see renderFlightSheetEditor()) rather than relying on
   #edit-form-container's rules above to also apply here - they don't:
   those are scoped to upload_pdf_page.php's #edit-form-container id
   specifically, which doesn't exist on database_edit_page.php. Without
   rules scoped under .flight-sheet-editor instead, fields rendered as a
   single full-width column with no flex-wrap layout and the highlight
   classes had no visible effect. The rules below are intentionally the
   same values as #edit-form-container's, just re-scoped, so the Flight
   Sheets editor matches the upload page's real styling exactly. This
   section only affects elements inside .flight-sheet-editor, so it
   can't change how upload_pdf_page.php or database_edit_page.php's own
   generic table editor look.
   ============================================================ */
.flight-sheet-editor .field-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eee;
}
.flight-sheet-editor .field-block {
    display: flex;
    flex-direction: column;
}
.flight-sheet-editor .field-block label {
    font-size: 0.72rem;
    color: #757575;
    margin-bottom: 3px;
    text-transform: uppercase;
    letter-spacing: .3px;
}
.flight-sheet-editor input[type="text"] {
    border: 1px solid #ccc !important;
    border-radius: 3px;
    padding: 5px 7px !important;
    font-size: 0.85rem;
    height: auto !important;
    width: 140px !important;
    margin: 0 !important;
    box-sizing: border-box;
}
.flight-sheet-editor .field-block.width-half input[type="text"] { width: 70px !important; }
.flight-sheet-editor .field-block.width-large input[type="text"] { width: 210px !important; }
.flight-sheet-editor .field-block.width-three-quarters input[type="text"] { width: 105px !important; }
.flight-sheet-editor .field-block.width-extra-large input[type="text"] { width: 300px !important; }
.flight-sheet-editor .field-block.field-highlight-yellow {
    background-color: #fff9c4;
    padding: 6px 8px 8px 8px;
    border-radius: 4px;
}
.flight-sheet-editor .field-block.field-highlight-blue {
    background-color: #bbdefb;
    padding: 6px 8px 8px 8px;
    border-radius: 4px;
}
.flight-sheet-editor h6 {
    font-weight: 600;
    color: #444;
    margin: 22px 0 8px 0;
    font-size: 0.95rem;
}
.flight-sheet-editor .leg-block {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 14px;
    margin-bottom: 18px;
}
.flight-sheet-editor .leg-block .field-row {
    margin-bottom: 8px;
}
.flight-sheet-editor .operation-entry-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}
.flight-sheet-editor .add-operation-btn {
    display: block;
    font-size: 0.75rem;
    padding: 0 10px;
    height: 28px;
    line-height: 28px;
    margin-top: 4px;
}
/* the left-hand record list's buttons (renderFlightSheetEditor()) - full
   width, left-aligned, wrapping label text, one per row, instead of the
   auto-width/nowrap/inline layout .edit-table-key-btn otherwise has for
   the FK picker's and the generic table editor's grids. Only applies
   inside .flight-sheet-editor's own left-hand list - the FK picker's
   buttons live in a modal appended straight to <body>, and the generic
   table editor's grid is a different render path entirely, so neither
   is affected by this. */
.flight-sheet-editor .edit-table-key-btn {
    width: 100%;
    text-align: left;
    white-space: normal;
    margin-bottom: 6px;
}
/* overall left-list/divider/right-fields layout for renderFlightSheetEditor() -
   per spec, this editor puts the single-column record list on the left
   and every field on the right, unlike the generic table editor's
   add/edit-form-on-the-left layout (.edit-table-wrapper/.edit-table-left/
   .edit-table-right above stay exactly as they were for that one). */
.flight-sheet-editor.edit-table-wrapper {
    align-items: flex-start; /* left/right columns scroll independently instead of stretching to match height */
}
.flight-sheet-editor .edit-table-left {
    flex: 0 0 320px;
    max-height: 80vh;
    overflow-y: auto;
}
.flight-sheet-editor .edit-table-grid {
    flex-direction: column;
    align-items: stretch;
}
.flight-sheet-editor .edit-table-divider {
    margin-left: 5px; /* narrower than the generic editor's divider - per spec */
    margin-right: 5px;
}
.flight-sheet-editor .edit-table-right {
    flex: 1 1 0%; /* equivalent to the generic .edit-table-right's "flex: 1 1 auto", but content-independent so this column doesn't grow/shrink based on how much field text happens to be in it */
    min-width: 0;
}