.portal { margin-top: 1.2rem; }

/* ---- Filter bar --------------------------------------------------------- */
.portal-filters {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: .9rem 1.6rem; margin: 0 0 .4rem;
}
.portal-search { position: relative; flex: 1 1 15rem; max-width: 22rem; }
.portal-search > svg {
  position: absolute; left: .65rem; top: 50%; transform: translateY(-50%);
  width: 1rem; height: 1rem; fill: var(--md-default-fg-color--light);
  pointer-events: none;
}
.portal-search input {
  width: 100%; box-sizing: border-box;
  padding: .5rem .8rem .5rem 2.05rem;
  font: inherit; font-size: .72rem; line-height: 1.4;
  color: var(--md-default-fg-color);
  background: var(--md-default-fg-color--lightest);
  border: .05rem solid var(--md-default-fg-color--lightest);
  border-radius: 1.4rem; outline: none;
  transition: border-color .2s, background .2s;
}
.portal-search input:focus {
  border-color: var(--md-accent-fg-color);
  background: var(--md-default-bg-color);
}
.portal-search input::placeholder { color: var(--md-default-fg-color--lighter); }

.portal-chipset { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.portal-chip-label {
  font-size: .58rem; text-transform: uppercase; letter-spacing: .09em;
  font-weight: 700; color: var(--md-default-fg-color--light); margin-right: .15rem;
}
.portal-chip {
  display: inline-flex; align-items: center; gap: .3rem;
  font: inherit; font-size: .66rem; font-weight: 600; cursor: pointer;
  padding: .28rem .62rem; border-radius: 1.2rem;
  color: var(--md-default-fg-color--light);
  background: transparent;
  border: .05rem solid var(--md-default-fg-color--lightest);
  transition: color .15s, background .15s, border-color .15s;
}
.portal-chip > svg { width: .82rem; height: .82rem; fill: currentColor; }
.portal-chip:hover { color: var(--md-default-fg-color); border-color: var(--md-accent-fg-color); }
.portal-chip[aria-pressed="true"] {
  color: var(--md-primary-bg-color);
  background: var(--md-primary-fg-color);
  border-color: var(--md-primary-fg-color);
}

/* ---- Cards grid --------------------------------------------------------- */
.portal-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem; margin-top: 1.4rem;
}
.portal-card {
  display: flex; flex-direction: column;
  padding: 1.15rem 1.25rem 1.15rem;
  color: var(--md-default-fg-color); text-decoration: none;
  background: var(--md-default-bg-color);
  border: .05rem solid var(--md-default-fg-color--lightest);
  border-radius: .35rem;
  transition: border-color .2s, box-shadow .2s, transform .15s;
}
.portal-card:hover {
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 .25rem .9rem rgba(0, 0, 0, .13);
  transform: translateY(-.14rem);
}
.portal-card:focus-visible {
  outline: .12rem solid var(--md-accent-fg-color); outline-offset: .15rem;
}
.portal-card__head { display: flex; align-items: center; gap: .6rem; margin-bottom: .55rem; }
.portal-card__icon { display: inline-flex; color: var(--md-primary-fg-color); }
.portal-card__icon > svg { width: 1.65rem; height: 1.65rem; fill: currentColor; }
.portal-card__title { font-weight: 700; font-size: .86rem; line-height: 1.2; }
.portal-card__desc {
  flex: 1; margin: 0 0 .9rem;
  font-size: .72rem; line-height: 1.55; color: var(--md-default-fg-color--light);
}
.portal-card__badges { display: flex; flex-wrap: wrap; gap: .32rem; margin-bottom: .9rem; }
.portal-badge {
  font-size: .6rem; font-weight: 700; letter-spacing: .01em;
  padding: .14rem .5rem; border-radius: 1rem;
  background: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color--light);
}
.portal-badge--latest {
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}
.portal-card__cat {
  display: inline-flex; align-items: center; gap: .3rem; align-self: flex-start;
  font-size: .6rem; font-weight: 600;
  padding: .22rem .55rem; border-radius: .3rem;
  color: var(--md-primary-fg-color);
  background: var(--md-default-fg-color--lightest); /* fallback for old browsers */
  background: color-mix(in srgb, var(--md-primary-fg-color) 13%, transparent);
}
.portal-card__cat > svg { width: .8rem; height: .8rem; fill: currentColor; }
.portal-card__go {
  margin-top: .85rem; font-size: .68rem; font-weight: 700;
  color: var(--md-primary-fg-color);
}
.portal-card[hidden] { display: none !important; }

/* ---- Empty state -------------------------------------------------------- */
.portal-empty {
  margin-top: 1.8rem; padding: 2.2rem 1rem; text-align: center;
  font-size: .78rem; color: var(--md-default-fg-color--light);
  border: .05rem dashed var(--md-default-fg-color--lighter);
  border-radius: .35rem;
}