/**
 * @file
 * Data portals — a tile grid of SWALIM's live external systems.
 *
 * Denser than the "What we do" cards above by design: icon, name, one line.
 * Two card sections of equal weight in a row read as one long block, so this
 * one is tighter, colour-filled, and obviously a set of destinations.
 *
 * All values from css/tokens.css. No new hex belongs in this file.
 */

.data-portals {
  padding-block: var(--swalim-section-pad);
  background-color: var(--swalim-color-surface);
}

.data-portals__inner {
  width: min(100% - 2.5rem, var(--swalim-container, 76rem));
  margin-inline: auto;
}

/* Header
   ------------------------------------------------------------------------ */

.data-portals__header {
  max-inline-size: 46rem;
  margin-block-end: var(--swalim-section-header-gap);
}

.data-portals__eyebrow {
  margin: 0 0 var(--swalim-space-xs, 0.5rem);
  font-family: var(--swalim-font-mono, 'IBM Plex Mono', ui-monospace, monospace);
  font-size: var(--swalim-text-xs, 0.75rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--swalim-color-brown);
}

.data-portals__heading {
  margin: 0;
  font-family: var(--swalim-font-display, Archivo, system-ui, sans-serif);
  font-size: var(--swalim-text-3xl, clamp(1.75rem, 1.2rem + 2vw, 2.75rem));
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--swalim-color-ink);
}

.data-portals__intro {
  margin: var(--swalim-space-sm, 0.75rem) 0 0;
  font-size: var(--swalim-text-lg, 1.125rem);
  line-height: 1.6;
  color: var(--swalim-color-ink-body);
}

/* Grid
   Six tiles: 3 across, then 2, then 1. A 17rem floor keeps three on a
   desktop row without the names wrapping to four lines.
   ------------------------------------------------------------------------ */

.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: var(--swalim-space-md, 1.1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.portal-grid__item {
  display: flex;
}

/* Tile
   ------------------------------------------------------------------------ */

.portal-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--swalim-space-sm, 0.75rem);
  inline-size: 100%;
  padding: var(--swalim-space-lg, 1.5rem);
  border-radius: var(--swalim-radius-md, 4px);
  overflow: hidden;
  transition: transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1),
              box-shadow 180ms ease;
}

/* Tones — assigned by subject, not decoration.
   Blue for water, floods and rivers (FAO primary); green for climate and
   groundwater; brown for drought and land.

   FAO orange is deliberately NOT a tile ground: at 2.58:1 against white it
   fails WCAG AA for text. It appears here only as a rule, an icon or a hover
   state, always with dark ink. */

.portal-tile--blue {
  background-color: var(--swalim-color-blue);        /* white text 5.72:1 */
  color: var(--swalim-color-on-dark);
}

.portal-tile--blue-deep {
  background-color: var(--swalim-color-blue-deep);   /* white text 9.78:1 */
  color: var(--swalim-color-on-dark);
}

.portal-tile--green {
  background-color: var(--swalim-color-green);       /* white text 7.28:1 */
  color: var(--swalim-color-on-dark);
}

.portal-tile--brown {
  background-color: var(--swalim-color-brown);       /* white text 7.14:1 */
  color: var(--swalim-color-on-dark);
}

/* Oversized watermark glyph bleeding off the tile corner — gives each tile a
   distinct silhouette at a glance without eight sourced icon files. */
.portal-tile__glyph {
  position: absolute;
  inset-block-start: -0.75rem;
  inset-inline-end: -0.75rem;
  inline-size: 7rem;
  block-size: 7rem;
  color: var(--swalim-color-on-dark);
  opacity: 0.14;
  pointer-events: none;
  transition: transform 260ms cubic-bezier(0.2, 0.7, 0.3, 1), opacity 180ms ease;
}

.portal-tile__glyph svg {
  inline-size: 100%;
  block-size: 100%;
}

.portal-tile:hover .portal-tile__glyph,
.portal-tile:focus-within .portal-tile__glyph {
  opacity: 0.2;
  transform: scale(1.06) rotate(-3deg);
}

.portal-tile__name {
  position: relative;
  margin: 0;
  /* Leaves room for the watermark so long names do not collide with it. */
  padding-inline-end: var(--swalim-space-xl, 2.5rem);
  font-family: var(--swalim-font-display, Archivo, system-ui, sans-serif);
  font-size: var(--swalim-text-lg, 1.125rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.005em;
}

.portal-tile__link {
  color: inherit;
  text-decoration: none;
}

/* Whole tile is the hit target; the anchor remains the accessible name. */
.portal-tile__link::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

/* The acronym people actually search for, set apart from the full name. */
.portal-tile__abbr {
  display: inline-block;
  margin-inline-start: 0.5em;
  padding: 0.1em 0.45em;
  border: 1px solid rgb(255 255 255 / 0.45);
  border-radius: var(--swalim-radius-sm, 3px);
  font-family: var(--swalim-font-mono, 'IBM Plex Mono', ui-monospace, monospace);
  font-size: 0.7em;
  font-weight: 500;
  letter-spacing: 0.06em;
  white-space: nowrap;
  vertical-align: 0.15em;
}

.portal-tile__summary {
  position: relative;
  margin: 0;
  /* Pushed to the tile foot so summaries align across a row. */
  margin-block-start: auto;
  padding-block-start: var(--swalim-space-sm, 0.75rem);
  font-size: var(--swalim-text-sm, 0.9375rem);
  line-height: 1.55;
  color: rgb(255 255 255 / 0.85);
}

.portal-tile__arrow {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 2rem;
  block-size: 2rem;
  margin-block-start: var(--swalim-space-sm, 0.75rem);
  border: 1px solid rgb(255 255 255 / 0.35);
  border-radius: 50%;
  transition: transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1),
              background-color 160ms ease, border-color 160ms ease,
              color 160ms ease;
}

.portal-tile__arrow svg {
  inline-size: 1rem;
  block-size: 1rem;
}

/* States
   ------------------------------------------------------------------------ */

.portal-tile:hover,
.portal-tile:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -16px rgb(28 71 103 / 0.5);
}

.portal-tile:hover .portal-tile__arrow,
.portal-tile:focus-within .portal-tile__arrow {
  background-color: #FFFFFF;
  border-color: #FFFFFF;
  color: var(--swalim-color-blue-deep);
  transform: translateX(0.25rem);
}

.portal-tile:focus-within {
  outline: 2px solid var(--swalim-color-accent);
  outline-offset: 3px;
}

.portal-tile__link:focus-visible {
  outline: none;
}

/* Marks a tile whose URL is still a placeholder. Nothing renders this today —
   it is here so an unfinished link is visible in review rather than silent. */
.portal-tile--pending {
  opacity: 0.75;
}

@media (prefers-reduced-motion: reduce) {
  .portal-tile,
  .portal-tile__glyph,
  .portal-tile__arrow {
    transition: none;
  }

  .portal-tile:hover,
  .portal-tile:focus-within {
    transform: none;
  }

  .portal-tile:hover .portal-tile__glyph,
  .portal-tile:focus-within .portal-tile__glyph,
  .portal-tile:hover .portal-tile__arrow,
  .portal-tile:focus-within .portal-tile__arrow {
    transform: none;
  }
}