/* Shared page-level layout used by every CPStudioBasePage child.

   The page padding and header gap come from the density tokens (app.css's Density block), so
   they tighten with html[data-cpd-density="compact"]. The 768px rule below still overrides the
   padding outright: a phone wants the tighter value whatever the density preference says. */

.page-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--cpd-page-pad);
    overflow-x: hidden;
}

@media (max-width: 768px) {
    .page-container {
        padding: var(--cpd-space-lg);
    }
}

.page-header {
    margin-bottom: var(--cpd-page-header-mb);
    text-align: center;
}

.page-title {
    color: var(--cpd-text);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--cpd-space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--cpd-space-sm);
}

.page-title i {
    color: var(--cpd-gold);
}

.page-subtitle {
    color: var(--cpd-text-muted);
    font-size: 1.1rem;
    opacity: 0.8;
}

.summary-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--cpd-space-lg);
    max-width: 100%;
    margin: 0;
}

.summary-card {
    background: var(--cpd-surface-1);
    border: 1px solid var(--cpd-border);
    border-radius: var(--cpd-radius-lg);
    padding: var(--cpd-space-lg);
    margin-bottom: 0;
    height: fit-content;
}

.summary-title {
    color: var(--cpd-gold);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--cpd-space-lg);
    display: flex;
    align-items: center;
    gap: var(--cpd-space-sm);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: var(--cpd-space-sm) 0;
    border-bottom: 1px solid var(--cpd-border-subtle);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    color: var(--cpd-text-muted);
}

.summary-value {
    color: var(--cpd-text);
    font-weight: 500;
}

.form-actions {
    text-align: right;
}

/* Primary action button — aligned with the brand gold (matches .btn-gold). */
.btn-primary {
    background-color: var(--cpd-gold);
    color: var(--cpd-dark);
    border: 1px solid var(--cpd-gold);
    padding: 0.5rem 1.2rem;
    border-radius: var(--cpd-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--cpd-transition-fast), color var(--cpd-transition-fast);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--cpd-dark);
    color: var(--cpd-gold);
}

.btn-secondary {
    background-color: var(--cpd-surface-3);
    color: var(--cpd-text);
    border: 1px solid var(--cpd-border-strong);
    padding: 0.5rem 1.2rem;
    border-radius: var(--cpd-radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--cpd-transition-fast);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--cpd-surface-hover);
}

/* Disabled with its reason in the tooltip (docs/ux-shape.md §8); without this a disabled primary
   looked exactly like an enabled one. */
.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: var(--cpd-disabled-opacity);
    cursor: not-allowed;
}

.btn-sm {
    padding: 0.2rem 0.55rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--cpd-radius-md);
}

/* The conventions page (Conventions.razor). The rule column carries short annotations beside a
   rule's id — what it does for the named instrument, an alternatives count, a conflict — each an
   aside, quieter than the id. Both tables are the app's one DataTable, so nothing here styles a grid. */
.conventions-row-status,
.conventions-alternatives,
.conventions-row-ambiguous {
    margin-left: var(--cpd-space-sm);
    color: var(--cpd-text-muted);
    white-space: nowrap;
}

.conventions-row-ambiguous {
    color: var(--cpd-warning);
}

/* A rule that does not apply to the named instrument. Named through MudBlazor's own classes: a
   weaker selector loses to `.mud-table-root .mud-table-body .mud-table-cell` and the row silently
   keeps full colour. */
.mud-table-root .mud-table-body tr.conventions-row-inapplicable .mud-table-cell {
    color: var(--cpd-text-muted);
}

/* A cell whose constraint was abbreviated to fit: the whole matcher is on its title, so say that
   it is hoverable rather than leaving the reader to discover it. */
.conventions-cell-abbreviated {
    border-bottom: 1px dotted currentColor;
    cursor: help;
}

/* The instrument the page resolves, its view switcher, and the page's one primary action on the
   right — one row, wrapping the button under the instrument only when the instrument is shown in
   full. */
.conventions-instrument {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: var(--cpd-space-md);
    margin-bottom: var(--cpd-space-lg);
}

.conventions-instrument-input {
    flex: 1 1 auto;
    min-width: 0;
}

.conventions-new-rule {
    margin-left: auto;
}

/* A resolved field's value, in CPDelta's own spelling and the trade form's repr colours; long
   date rules wrap rather than widen the table. */
.conventions-value {
    font-family: var(--cpd-font-mono);
    white-space: normal;
}

/* An optional field nothing set, and its "no rule": said in words, quieter than a value. */
.conventions-unset {
    color: var(--cpd-text-muted);
}

/* A Set By rule: a link, and it has to look like one — the app's reset makes every `a` inherit
   its text colour. The same treatment as the start page's task links. */
.conventions-rule-link {
    color: var(--cpd-gold);
    font-weight: 500;
}

.conventions-rule-link:hover,
.conventions-rule-link:focus-visible {
    text-decoration: underline;
}

.conventions-section {
    margin-bottom: var(--cpd-space-lg);
}

/* The rule editor's chip rows: a read-only matcher, and the layers under the open rule. */
.convention-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--cpd-space-xs) var(--cpd-space-sm);
}