.useful-links-hero { background: linear-gradient(135deg, var(--surface), var(--surface-soft)); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.1rem; }
.useful-links-hero h1 { color: var(--navy); font-size: clamp(1.7rem, 5vw, 2.45rem); margin: .2rem 0 .45rem; }
.useful-links-hero > p:last-of-type { color: var(--text-muted); line-height: 1.65; margin: 0; max-width: 760px; }
.useful-links-search { align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: .9rem; display: flex; gap: .65rem; margin-top: 1rem; min-height: 52px; padding: 0 .9rem; }
.useful-links-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--accent-soft); }
.useful-links-search input { background: transparent; border: 0; color: var(--text-main); font: inherit; min-width: 0; outline: 0; width: 100%; }
.useful-links-filters { display: flex; gap: .5rem; margin-top: .85rem; overflow-x: auto; padding: .1rem .1rem .45rem; scrollbar-width: thin; }
.useful-links-chip { background: var(--surface); border: 1px solid var(--border); border-radius: 999px; color: var(--text-main); cursor: pointer; flex: 0 0 auto; font: inherit; font-size: .86rem; min-height: 44px; padding: .55rem .9rem; }
.useful-links-chip[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--primary-contrast); }
.useful-links-section { margin-top: 1.6rem; }
.useful-links-section__heading { margin-bottom: .8rem; }
.useful-links-section__heading h2 { color: var(--navy); font-size: 1.25rem; margin: 0 0 .2rem; }
.useful-links-section__heading p { color: var(--text-muted); font-size: .9rem; margin: 0; }
.useful-links-grid { display: grid; gap: .8rem; grid-template-columns: minmax(0, 1fr); }
.useful-links-grid--quick { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.useful-link-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); display: flex; flex-direction: column; min-width: 0; padding: .9rem; }
.useful-link-card__top { align-items: center; display: flex; justify-content: space-between; }
.useful-link-card__icon { align-items: center; background: var(--accent-soft); border-radius: .75rem; color: var(--primary); display: inline-flex; height: 44px; justify-content: center; width: 44px; }
.useful-link-card__favorite { align-items: center; background: transparent; border: 0; border-radius: 50%; color: var(--text-muted); cursor: pointer; display: inline-flex; height: 44px; justify-content: center; width: 44px; }
.useful-link-card__favorite[aria-pressed="true"] { background: var(--warning-soft); color: var(--warning-text); }
.useful-link-card h3 { color: var(--navy); font-size: 1rem; line-height: 1.35; margin: .75rem 0 .35rem; overflow-wrap: anywhere; }
.useful-link-card__description { color: var(--text-muted); flex: 1; font-size: .86rem; line-height: 1.55; margin: 0; }
.useful-link-card__institution { color: var(--text-main); font-size: .75rem; font-weight: 700; margin: .65rem 0 0; }
.useful-link-card__badges { display: flex; flex-wrap: wrap; gap: .35rem; margin: .65rem 0; }
.useful-link-card__badges span { border-radius: 999px; font-size: .68rem; font-weight: 700; padding: .3rem .48rem; }
.useful-link-card__category { background: var(--surface-soft); color: var(--text-muted); }
.useful-link-card__official { background: #eaf8ef; color: #167438; }
[data-theme="dark"] .useful-link-card__official { background: #163e2a; color: #8ce5aa; }
.useful-link-card__action { align-items: center; display: inline-flex; justify-content: center; min-height: 44px; width: 100%; }
.useful-link-card__action .ui-icon { margin-left: .4rem; width: 1rem; }
@media (min-width: 600px) { .useful-links-hero { padding: 1.4rem; } .useful-links-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1180px) { .useful-links-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .useful-links-grid--quick { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 359px) { .useful-links-hero { padding: .9rem; } }