.bird-calendar-scroll{max-width:100%;overflow-x:auto;margin:25px 0 15px;border:1px solid var(--line);scrollbar-color:var(--ink) #edf2ef}
.bird-calendar{width:100%;min-width:750px;border-collapse:collapse;font-size:14px;line-height:1.5}
.bird-calendar caption{text-align:left;font-size:16px;font-weight:500;padding:18px;background:#edf2ef;color:var(--ink)}
.bird-calendar th,.bird-calendar td{padding:12px 7px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap}
.bird-calendar th:first-child{text-align:left;min-width:172px;padding-left:18px;background:var(--paper);position:sticky;left:0;z-index:1;box-shadow:1px 0 var(--line)}
.bird-calendar thead th{font-weight:500;background:#edf2ef}.bird-calendar th a{text-decoration:underline;text-underline-offset:3px}
.bird-calendar tbody th{font-weight:500}.bird-calendar tbody tr:last-child>*{border-bottom:0}.bird-calendar td{color:#758285}
.bird-calendar .bird-month-active{background:#e6eeea;color:#234f58}.bird-calendar-key{font-size:15px;line-height:1.7}
.bird-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.bird-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 28px;margin:28px 0}
.bird-card{min-width:0;scroll-margin-top:30px;border-bottom:1px solid var(--line);padding-bottom:24px}.bird-card img{height:auto;aspect-ratio:1;object-fit:contain;background:#fffdf7}
.guide-article .bird-card h3{font-size:30px;margin:20px 0 6px}.guide-article .bird-card p{font-size:16px;line-height:1.7;margin-top:12px}
.guide-article .bird-card .bird-latin{font-size:14px;margin-top:0}.guide-article .bird-card .bird-source{font-size:14px;margin-top:16px}
.bird-source a{overflow-wrap:anywhere}.bird-notes{border-left:3px solid var(--ink);padding:4px 0 4px 22px;margin-top:24px}
.bird-island-links{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:22px}.bird-island-links a{border-bottom:1px solid currentColor;font-size:16px}
.bird-data-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin:24px 0}.bird-data-details summary{cursor:pointer;font-weight:500;line-height:1.6;color:var(--ink)}.bird-data-details[open] summary{margin-bottom:20px}.bird-art-note{font-size:15px}
@media(max-width:1050px) and (min-width:701px){.bird-card-grid{grid-template-columns:1fr}.bird-card{display:grid;grid-template-columns:38% 1fr;gap:24px}.guide-article .bird-card h3{margin-top:0}}
@media(max-width:500px){.bird-card-grid{grid-template-columns:1fr;gap:30px}.bird-card img{max-height:330px}.bird-calendar-scroll{margin-top:20px}.bird-calendar th:first-child{min-width:145px;padding-left:12px}}