/* ==========================================================================
   BOOTSTRAP-STYLE GRID & UTILITIES
   A hand-written, offline implementation of Bootstrap 5's grid and the
   utility classes this project uses (.container, .row, .col-*, spacing,
   display, flex). Written locally because this build environment has no
   internet access to fetch the real Bootstrap CDN file — see project notes.
   Behaves the same way: 12-column grid, responsive breakpoints, gutters.
   Deliberately excludes Bootstrap's default component skins (buttons,
   cards, navbar, etc.) so the site's flat brand design in tokens.css /
   style.css remains the single source of visual truth.
   ========================================================================== */

:root {
  --bs-gutter-x: 1.5rem;
  --bs-gutter-y: 0;
}

/* ---------------------------------------------------------------------- *
 * Container
 * ---------------------------------------------------------------------- */
.container,
.container-fluid {
  width: 100%;
  padding-right: calc(var(--bs-gutter-x) * 0.5);
  padding-left: calc(var(--bs-gutter-x) * 0.5);
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px)  { .container { max-width: 540px; } }
@media (min-width: 768px)  { .container { max-width: 720px; } }
@media (min-width: 992px)  { .container { max-width: 960px; } }
@media (min-width: 1200px) { .container { max-width: 1140px; } }
@media (min-width: 1400px) { .container { max-width: 1320px; } }

/* This project's page content sits at a narrower measure than Bootstrap's
   default container — override the upper breakpoints to match the brand's
   established --content-max (1200px) and --content-pad tokens. */
@media (min-width: 1200px) { .container { max-width: var(--content-max); padding-inline: var(--content-pad); } }
@media (min-width: 1400px) { .container { max-width: var(--content-max); padding-inline: var(--content-pad); } }

/* ---------------------------------------------------------------------- *
 * Row / Column — real 12-column flexbox grid with gutters
 * ---------------------------------------------------------------------- */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-top: calc(-1 * var(--bs-gutter-y));
  margin-right: calc(-0.5 * var(--bs-gutter-x));
  margin-left: calc(-0.5 * var(--bs-gutter-x));
}
.row > * {
  box-sizing: border-box;
  flex-shrink: 0;
  min-width: 0;
  width: 100%;
  max-width: 100%;
  padding-right: calc(var(--bs-gutter-x) * 0.5);
  padding-left: calc(var(--bs-gutter-x) * 0.5);
  margin-top: var(--bs-gutter-y);
}

.g-0 { --bs-gutter-x: 0; --bs-gutter-y: 0; }
.g-2 { --bs-gutter-x: 0.5rem; --bs-gutter-y: 0.5rem; }
.g-3 { --bs-gutter-x: 1rem; --bs-gutter-y: 1rem; }
.g-4 { --bs-gutter-x: 1.5rem; --bs-gutter-y: 1.5rem; }
.g-5 { --bs-gutter-x: 2rem; --bs-gutter-y: 2rem; }

/* Column width generator: .col-1 .. .col-12, plus .col (auto) and .col-auto */
.col      { flex: 1 0 0%; }
.col-auto { flex: 0 0 auto; width: auto; }

.col-1  { flex: 0 0 auto; width: 8.3333%; }
.col-2  { flex: 0 0 auto; width: 16.6667%; }
.col-3  { flex: 0 0 auto; width: 25%; }
.col-4  { flex: 0 0 auto; width: 33.3333%; }
.col-5  { flex: 0 0 auto; width: 41.6667%; }
.col-6  { flex: 0 0 auto; width: 50%; }
.col-7  { flex: 0 0 auto; width: 58.3333%; }
.col-8  { flex: 0 0 auto; width: 66.6667%; }
.col-9  { flex: 0 0 auto; width: 75%; }
.col-10 { flex: 0 0 auto; width: 83.3333%; }
.col-11 { flex: 0 0 auto; width: 91.6667%; }
.col-12 { flex: 0 0 auto; width: 100%; }

/* Responsive column variants — sm (≥576px), md (≥768px), lg (≥992px), xl (≥1200px) */
@media (min-width: 576px) {
  .col-sm      { flex: 1 0 0%; }
  .col-sm-auto { flex: 0 0 auto; width: auto; }
  .col-sm-1  { flex: 0 0 auto; width: 8.3333%; }
  .col-sm-2  { flex: 0 0 auto; width: 16.6667%; }
  .col-sm-3  { flex: 0 0 auto; width: 25%; }
  .col-sm-4  { flex: 0 0 auto; width: 33.3333%; }
  .col-sm-5  { flex: 0 0 auto; width: 41.6667%; }
  .col-sm-6  { flex: 0 0 auto; width: 50%; }
  .col-sm-7  { flex: 0 0 auto; width: 58.3333%; }
  .col-sm-8  { flex: 0 0 auto; width: 66.6667%; }
  .col-sm-9  { flex: 0 0 auto; width: 75%; }
  .col-sm-10 { flex: 0 0 auto; width: 83.3333%; }
  .col-sm-11 { flex: 0 0 auto; width: 91.6667%; }
  .col-sm-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 768px) {
  .col-md      { flex: 1 0 0%; }
  .col-md-auto { flex: 0 0 auto; width: auto; }
  .col-md-1  { flex: 0 0 auto; width: 8.3333%; }
  .col-md-2  { flex: 0 0 auto; width: 16.6667%; }
  .col-md-3  { flex: 0 0 auto; width: 25%; }
  .col-md-4  { flex: 0 0 auto; width: 33.3333%; }
  .col-md-5  { flex: 0 0 auto; width: 41.6667%; }
  .col-md-6  { flex: 0 0 auto; width: 50%; }
  .col-md-7  { flex: 0 0 auto; width: 58.3333%; }
  .col-md-8  { flex: 0 0 auto; width: 66.6667%; }
  .col-md-9  { flex: 0 0 auto; width: 75%; }
  .col-md-10 { flex: 0 0 auto; width: 83.3333%; }
  .col-md-11 { flex: 0 0 auto; width: 91.6667%; }
  .col-md-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 992px) {
  .col-lg      { flex: 1 0 0%; }
  .col-lg-auto { flex: 0 0 auto; width: auto; }
  .col-lg-1  { flex: 0 0 auto; width: 8.3333%; }
  .col-lg-2  { flex: 0 0 auto; width: 16.6667%; }
  .col-lg-3  { flex: 0 0 auto; width: 25%; }
  .col-lg-4  { flex: 0 0 auto; width: 33.3333%; }
  .col-lg-5  { flex: 0 0 auto; width: 41.6667%; }
  .col-lg-6  { flex: 0 0 auto; width: 50%; }
  .col-lg-7  { flex: 0 0 auto; width: 58.3333%; }
  .col-lg-8  { flex: 0 0 auto; width: 66.6667%; }
  .col-lg-9  { flex: 0 0 auto; width: 75%; }
  .col-lg-10 { flex: 0 0 auto; width: 83.3333%; }
  .col-lg-11 { flex: 0 0 auto; width: 91.6667%; }
  .col-lg-12 { flex: 0 0 auto; width: 100%; }
}
@media (min-width: 1200px) {
  .col-xl      { flex: 1 0 0%; }
  .col-xl-auto { flex: 0 0 auto; width: auto; }
  .col-xl-1  { flex: 0 0 auto; width: 8.3333%; }
  .col-xl-2  { flex: 0 0 auto; width: 16.6667%; }
  .col-xl-3  { flex: 0 0 auto; width: 25%; }
  .col-xl-4  { flex: 0 0 auto; width: 33.3333%; }
  .col-xl-5  { flex: 0 0 auto; width: 41.6667%; }
  .col-xl-6  { flex: 0 0 auto; width: 50%; }
  .col-xl-7  { flex: 0 0 auto; width: 58.3333%; }
  .col-xl-8  { flex: 0 0 auto; width: 66.6667%; }
  .col-xl-9  { flex: 0 0 auto; width: 75%; }
  .col-xl-10 { flex: 0 0 auto; width: 83.3333%; }
  .col-xl-11 { flex: 0 0 auto; width: 91.6667%; }
  .col-xl-12 { flex: 0 0 auto; width: 100%; }
}

/* ---------------------------------------------------------------------- *
 * Flex utilities
 * ---------------------------------------------------------------------- */
.d-none  { display: none !important; }
.d-block { display: block !important; }
.d-flex  { display: flex !important; }
.d-grid  { display: grid !important; }
.d-inline-flex { display: inline-flex !important; }

.flex-row    { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap   { flex-wrap: wrap !important; }
.align-items-start   { align-items: flex-start !important; }
.align-items-center  { align-items: center !important; }
.align-items-end     { align-items: flex-end !important; }
.justify-content-start   { justify-content: flex-start !important; }
.justify-content-center  { justify-content: center !important; }
.justify-content-end     { justify-content: flex-end !important; }
.justify-content-between { justify-content: space-between !important; }
.gap-1 { gap: var(--space-1) !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-3) !important; }
.gap-4 { gap: var(--space-4) !important; }

@media (min-width: 768px) {
  .d-md-none  { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-flex  { display: flex !important; }
}
@media (min-width: 992px) {
  .d-lg-none  { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex  { display: flex !important; }
}

/* ---------------------------------------------------------------------- *
 * Spacing utilities (m/p, 0–5 scale mapped to the project's space tokens)
 * ---------------------------------------------------------------------- */
.m-0  { margin: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-6) !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-6) !important; }

.p-0  { padding: 0 !important; }
.p-1  { padding: var(--space-1) !important; }
.p-2  { padding: var(--space-2) !important; }
.p-3  { padding: var(--space-3) !important; }
.p-4  { padding: var(--space-4) !important; }
.p-5  { padding: var(--space-6) !important; }

/* ---------------------------------------------------------------------- *
 * Text utilities
 * ---------------------------------------------------------------------- */
.text-start   { text-align: left !important; }
.text-center  { text-align: center !important; }
.text-end     { text-align: right !important; }

@media (min-width: 768px) {
  .text-md-start  { text-align: left !important; }
  .text-md-center { text-align: center !important; }
  .text-md-end    { text-align: right !important; }
}