/* Maersk Design System — light theme, ported framework-free.
 *
 * The stack here is plain HTML + vanilla JS with no build step, so the MDS npm
 * packages (@maersk-global/mds-components-core, mds-design-tokens) and the
 * `<mc-*>` web components are not available. What follows is the authoritative
 * MDS light-theme token set, declared as the same `--mds_*` CSS variables the
 * real package defines, so the names you learn here are the names you keep.
 *
 * When this app grows a build step, the migration is mechanical:
 *   1. npm install @maersk-global/mds-design-tokens @maersk-global/mds-components-core
 *      @maersk-global/mds-foundations @maersk-global/fonts
 *   2. Import maersk/light/web/css/design-tokens.css and DELETE the :root block
 *      below — the variable names already match.
 *   3. Replace the hand-rolled .mds-button / .mds-table / .mds-card rules with
 *      <mc-button>, <mc-table>, <mc-card>.
 *
 * Rules followed throughout: no hardcoded colours outside :root, 4px spacing
 * grid, MDS radius scale, sentence case, Maersk Headline for headings and
 * Maersk Text for body. Both fonts ship via npm and so are unavailable without
 * a build step — the documented Arial fallback stack is used instead, which is
 * what MDS specifies when the brand fonts cannot be loaded.
 *
 * https://designsystem.maersk.com/foundations/themes/maersk/light/
 */

:root {
  /* --- Global tokens ------------------------------------------------- */
  --mds_global_border_width: 1px;
  --mds_global_border_style: solid;

  /* --- Typography ---------------------------------------------------- */
  --mds_brand_typography_headline_font-family-fallback: Arial, "Helvetica Neue",
    Helvetica, sans-serif;
  --mds_brand_typography_text_font-family-fallback: Arial, "Helvetica Neue",
    Helvetica, sans-serif;

  --mds_brand_typography_headline_large_desktop_font-size: 50px;
  --mds_brand_typography_headline_large_desktop_line-height: 56px;
  --mds_brand_typography_headline_large_mobile_font-size: 38px;
  --mds_brand_typography_headline_large_mobile_line-height: 38px;
  --mds_brand_typography_headline_large_font-weight: 300;

  --mds_brand_typography_headline_medium_desktop_font-size: 40px;
  --mds_brand_typography_headline_medium_desktop_line-height: 40px;
  --mds_brand_typography_headline_medium_mobile_font-size: 26px;
  --mds_brand_typography_headline_medium_mobile_line-height: 32px;
  --mds_brand_typography_headline_medium_font-weight: 300;

  --mds_brand_typography_headline_small_desktop_font-size: 26px;
  --mds_brand_typography_headline_small_desktop_line-height: 32px;
  --mds_brand_typography_headline_small_mobile_font-size: 22px;
  --mds_brand_typography_headline_small_mobile_line-height: 26px;
  --mds_brand_typography_headline_small_font-weight: 400;

  /* --- Primary ------------------------------------------------------- */
  --mds_brand_appearance_primary_default_background-color: #141414;
  --mds_brand_appearance_primary_default_on-background-color: #ffffff;
  --mds_brand_appearance_primary_default_text-color: #141414;
  --mds_brand_appearance_primary_default_border-color: #141414;
  --mds_brand_appearance_primary_default_link-color: #0077b2;
  --mds_brand_appearance_primary_weak_background-color: #f0f0f0;
  --mds_brand_appearance_primary_weak_border-color: #d4d4d4;
  --mds_brand_appearance_state_primary_default_hover_background-color: #363636;
  --mds_brand_appearance_state_primary_default_active_background-color: #4c4c4c;

  /* --- Secondary (Maersk brand blue) --------------------------------- */
  --mds_brand_appearance_secondary_default_text-color: #0077b2;
  --mds_brand_appearance_secondary_default_background-color: #42b0d5;
  --mds_brand_appearance_secondary_default_on-background-color: #141414;
  --mds_brand_appearance_secondary_default_border-color: #42b0d5;
  --mds_brand_appearance_secondary_weak_background-color: #e2f3f9;
  --mds_brand_appearance_secondary_weak_border-color: #9ed7ea;
  --mds_brand_appearance_state_secondary_default_hover_background-color: #60bddc;
  --mds_brand_appearance_state_secondary_default_active_background-color: #78c8e2;

  /* --- Neutral ------------------------------------------------------- */
  --mds_brand_appearance_neutral_default_background-color: #ffffff;
  --mds_brand_appearance_neutral_default_text-color: #141414;
  --mds_brand_appearance_neutral_default_border-color: #d4d4d4;
  --mds_brand_appearance_neutral_weakest_text-color: #6a6a6a;
  --mds_brand_appearance_neutral_weakest_background-color: #f7f7f7;
  --mds_brand_appearance_neutral_weak_text-color: #4c4c4c;
  --mds_brand_appearance_neutral_weak_background-color: #f0f0f0;
  --mds_brand_appearance_neutral_weak_border-color: #e2e2e2;
  --mds_brand_appearance_neutral_strong_background-color: #e2e2e2;
  --mds_brand_appearance_neutral_strongest_background-color: #b3b3b3;
  --mds_brand_appearance_neutral_inverse_background-color: #141414;
  --mds_brand_appearance_neutral_inverse_text-color: #ffffff;

  /* --- Spacing: 4px grid --------------------------------------------- */
  --mds_spacing_1x: 4px;
  --mds_spacing_2x: 8px;
  --mds_spacing_3x: 12px;
  --mds_spacing_4x: 16px;
  --mds_spacing_5x: 20px;
  --mds_spacing_6x: 24px;
  --mds_spacing_8x: 32px;
  --mds_spacing_10x: 40px;
  --mds_spacing_12x: 48px;
  --mds_spacing_16x: 64px;

  /* --- Corner radius ------------------------------------------------- */
  --mds_radius_xs: 2px;
  --mds_radius_sm: 4px;
  --mds_radius_md: 6px;
  --mds_radius_lg: 8px;
  --mds_radius_xl: 12px;
  --mds_radius_2xl: 16px;
  --mds_radius_full: 9999px;
}

/* ==================================================================== */
/* Base                                                                 */
/* ==================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--mds_brand_typography_text_font-family-fallback);
  font-size: 14px;
  line-height: 20px;
  color: var(--mds_brand_appearance_neutral_default_text-color);
  background-color: var(--mds_brand_appearance_neutral_weakest_background-color);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--mds_brand_typography_headline_font-family-fallback);
}

h1 {
  font-size: var(--mds_brand_typography_headline_small_desktop_font-size);
  line-height: var(--mds_brand_typography_headline_small_desktop_line-height);
  font-weight: var(--mds_brand_typography_headline_small_font-weight);
}

h2 {
  font-size: 20px;
  line-height: 24px;
  font-weight: 400;
}

h3 {
  font-size: 16px;
  line-height: 20px;
  font-weight: 400;
}

p {
  margin: 0 0 var(--mds_spacing_3x);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--mds_brand_appearance_primary_default_link-color);
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  padding: 2px var(--mds_spacing_1x);
  border-radius: var(--mds_radius_xs);
  background-color: var(--mds_brand_appearance_neutral_weak_background-color);
}

/* Visible focus on every interactive element — MDS accessibility baseline. */
:where(a, button, input, label.mds-file-label):focus-visible {
  outline: 2px solid var(--mds_brand_appearance_primary_default_link-color);
  outline-offset: 2px;
}

/* ==================================================================== */
/* Layout: top bar + page                                               */
/* ==================================================================== */

.mds-top-bar {
  display: flex;
  align-items: center;
  gap: var(--mds_spacing_4x);
  height: 64px;
  padding: 0 var(--mds_spacing_6x);
  background-color: var(--mds_brand_appearance_neutral_default_background-color);
  border-bottom: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_neutral_weak_border-color);
}

.mds-top-bar__logo {
  flex: 0 0 auto;
  display: block;
  width: 40px;
  height: 40px;
}

.mds-top-bar__title {
  font-family: var(--mds_brand_typography_headline_font-family-fallback);
  font-size: 18px;
  line-height: 24px;
  font-weight: 400;
}

.mds-top-bar__env {
  margin-left: auto;
}

.mds-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--mds_spacing_8x) var(--mds_spacing_6x) var(--mds_spacing_16x);
  display: grid;
  gap: var(--mds_spacing_6x);
}

.mds-page__intro {
  display: grid;
  gap: var(--mds_spacing_2x);
}

/* Two columns from the md breakpoint up (1025px+), single column below. */
.mds-grid-2 {
  display: grid;
  gap: var(--mds_spacing_6x);
  grid-template-columns: 1fr;
}

@media (min-width: 1025px) {
  .mds-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* ==================================================================== */
/* Card — outer container, so radius_xl per the radius nesting rule      */
/* ==================================================================== */

.mds-card {
  padding: var(--mds_spacing_6x);
  border-radius: var(--mds_radius_xl);
  background-color: var(--mds_brand_appearance_neutral_default_background-color);
  border: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_neutral_weak_border-color);
}

.mds-card__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--mds_spacing_4x);
  margin-bottom: var(--mds_spacing_4x);
}

.mds-card__hint {
  color: var(--mds_brand_appearance_neutral_weakest_text-color);
}

/* ==================================================================== */
/* Button — radius_md per MDS                                           */
/* ==================================================================== */

.mds-button,
.mds-file-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--mds_spacing_2x);
  min-height: 40px;
  padding: var(--mds_spacing_2x) var(--mds_spacing_4x);
  font-family: inherit;
  font-size: 14px;
  line-height: 20px;
  border-radius: var(--mds_radius_md);
  border: var(--mds_global_border_width) var(--mds_global_border_style) transparent;
  cursor: pointer;
  transition: background-color 120ms ease-in-out;
}

.mds-button--primary {
  color: var(--mds_brand_appearance_primary_default_on-background-color);
  background-color: var(--mds_brand_appearance_primary_default_background-color);
}

.mds-button--primary:hover:not(:disabled) {
  background-color: var(
    --mds_brand_appearance_state_primary_default_hover_background-color
  );
}

.mds-button--primary:active:not(:disabled) {
  background-color: var(
    --mds_brand_appearance_state_primary_default_active_background-color
  );
}

.mds-button:disabled {
  cursor: not-allowed;
  color: var(--mds_brand_appearance_neutral_weakest_text-color);
  background-color: var(--mds_brand_appearance_neutral_strong_background-color);
}

/* Native <input type="file"> styled through its label — no JS, no library. */
.mds-file-label {
  color: var(--mds_brand_appearance_primary_default_text-color);
  background-color: var(--mds_brand_appearance_neutral_default_background-color);
  border-color: var(--mds_brand_appearance_neutral_default_border-color);
}

.mds-file-label:hover {
  background-color: var(--mds_brand_appearance_neutral_weak_background-color);
}

/* Present to screen readers and to the file-picker, invisible on screen. */
.mds-visually-hidden,
.mds-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mds-upload-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--mds_spacing_3x);
}

.mds-upload-row__filename {
  color: var(--mds_brand_appearance_neutral_weak_text-color);
}

/* ==================================================================== */
/* Notification — MDS uses radius_lg for notifications                   */
/* ==================================================================== */

.mds-notification {
  padding: var(--mds_spacing_3x) var(--mds_spacing_4x);
  margin-top: var(--mds_spacing_4x);
  border-radius: var(--mds_radius_lg);
  border: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_neutral_weak_border-color);
  background-color: var(--mds_brand_appearance_neutral_weakest_background-color);
}

.mds-notification[hidden] {
  display: none;
}

.mds-notification--info {
  background-color: var(--mds_brand_appearance_secondary_weak_background-color);
  border-color: var(--mds_brand_appearance_secondary_weak_border-color);
}

.mds-notification--error {
  background-color: var(--mds_brand_appearance_primary_weak_background-color);
  border-color: var(--mds_brand_appearance_primary_weak_border-color);
}

/* ==================================================================== */
/* Table — radius_lg, nested inside a radius_xl card                     */
/* ==================================================================== */

.mds-table-wrap {
  overflow-x: auto;
  border-radius: var(--mds_radius_lg);
  border: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_neutral_weak_border-color);
}

.mds-table {
  width: 100%;
  border-collapse: collapse;
}

.mds-table th,
.mds-table td {
  padding: var(--mds_spacing_3x) var(--mds_spacing_4x);
  text-align: left;
  border-bottom: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_neutral_weak_border-color);
}

.mds-table th {
  font-weight: 400;
  color: var(--mds_brand_appearance_neutral_weak_text-color);
  background-color: var(--mds_brand_appearance_neutral_weakest_background-color);
}

.mds-table tbody tr:last-child td {
  border-bottom: 0;
}

/* Tabular numbers, per MDS guidance, only where figures are compared. */
.mds-table td.mds-numeric {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.mds-table__empty {
  color: var(--mds_brand_appearance_neutral_weakest_text-color);
}

/* ==================================================================== */
/* Chart placeholder — an obvious blank, never a fake chart              */
/* ==================================================================== */

.mds-chart-placeholder {
  display: grid;
  place-content: center;
  gap: var(--mds_spacing_2x);
  min-height: 280px;
  padding: var(--mds_spacing_6x);
  text-align: center;
  border-radius: var(--mds_radius_lg);
  border: 2px dashed var(--mds_brand_appearance_neutral_strongest_background-color);
  background-color: var(--mds_brand_appearance_neutral_weakest_background-color);
  color: var(--mds_brand_appearance_neutral_weak_text-color);
}

.mds-chart-placeholder__label {
  font-family: var(--mds_brand_typography_headline_font-family-fallback);
  font-size: 20px;
  line-height: 24px;
  color: var(--mds_brand_appearance_neutral_default_text-color);
}

/* ==================================================================== */
/* Tag / badge — radius_full pill                                        */
/* ==================================================================== */

.mds-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--mds_spacing_3x);
  font-size: 12px;
  line-height: 16px;
  border-radius: var(--mds_radius_full);
  color: var(--mds_brand_appearance_secondary_default_text-color);
  background-color: var(--mds_brand_appearance_secondary_weak_background-color);
  border: var(--mds_global_border_width) var(--mds_global_border_style)
    var(--mds_brand_appearance_secondary_weak_border-color);
}

.mds-checklist {
  margin: 0;
  padding-left: var(--mds_spacing_5x);
  display: grid;
  gap: var(--mds_spacing_1x);
}