/* Hero */
.hero { padding: 3rem 1rem 2.5rem; background: radial-gradient(1200px 500px at 20% -10%, rgba(179,0,45,0.06), transparent), radial-gradient(1000px 400px at 90% 10%, rgba(71,85,105,0.08), transparent); }
.hero .inner { max-width: var(--maxw); margin: 0 auto; }
.hero h1 { font-size: 2.5rem; letter-spacing: -0.01em; }
.hero-lead {  font-size: 1.15rem; max-width: 68ch;  }
.hero-grid { display: grid; gap: 1.5rem; grid-template-columns: 1.2fr 1fr; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.hero .media { width: 100%; }
.btn { display: inline-block; padding: 0.62rem 1rem; border-radius: 9999px; border: 1px solid var(--border); color: var(--text); background: var(--card); text-decoration: none; font-weight: 600; line-height: 1; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.outline { background: transparent; border-color: currentColor; color: var(--text); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
/* Hero slider */
.hero-slider { position: relative; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); background: var(--card); }
.hero-slider .slide { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 380ms ease; box-shadow: inset 0 0 0 2px var(--slide-border, transparent); }
.hero-slider .slide.is-active { position: relative; opacity: 1; }
.hero-slider .slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.02); transition: transform 5200ms ease; display: block; position: relative; z-index: 1; }
.hero-slider .slide.is-active img { transform: scale(1); }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.45); color: #fff; border: 0; width: 38px; height: 38px; border-radius: 999px; display: grid; place-items: center; cursor: pointer; }
.slider-arrow.left { left: 8px; }
.slider-arrow.right { right: 8px; }
.slider-arrow:hover { background: rgba(0,0,0,0.58); }
.slider-dots { position: absolute; bottom: 8px; left: 0; right: 0; display: flex; justify-content: center; gap: 6px; }
.slider-dots button { width: 8px; height: 8px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,0.8); cursor: pointer; }
.slider-dots button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); }
/* Hero latest ticker */
.hero-note { margin-top: 0.75rem; }
.flood-initiative { margin-top: 1rem; padding: 0.8rem 0.9rem; display: flex; align-items: center; justify-content: space-between; gap: 0.85rem; border: 1px solid color-mix(in oklab, #0ea5e9 45%, var(--border)); border-radius: 12px; background: color-mix(in oklab, #0ea5e9 7%, var(--card)); }
.flood-initiative-text { display: grid; gap: 0.15rem; }
.flood-initiative-text strong { font-size: 0.98rem; }
.flood-initiative-text span { color: var(--muted); font-size: 0.88rem; line-height: 1.35; }
.flood-initiative-actions { display: flex; flex: 0 0 auto; gap: 0.45rem; flex-wrap: wrap; }
.flood-initiative-actions .btn { white-space: nowrap; font-size: 0.86rem; padding: 0.55rem 0.75rem; }
@media (max-width: 680px) {
  .flood-initiative { align-items: flex-start; flex-direction: column; }
  .flood-initiative-actions { width: 100%; }
  .flood-initiative-actions .btn { flex: 1 1 12rem; text-align: center; }
}
.hero-note .ticker { overflow: hidden; height: calc(var(--ti-h,3.4rem) * 2 + var(--ti-gap,0.6rem)); }
.hero-note .ticker-inner { display: flex; flex-direction: column; row-gap: var(--ti-gap,0.6rem); transition: transform 440ms cubic-bezier(.22,.61,.36,1); will-change: transform; }
.hero-note .ticker-item { height: var(--ti-h,3.4rem); padding: 0.45rem 0.7rem; border: 1px solid color-mix(in oklab, var(--ti-accent, var(--border)) 70%, transparent); border-left-width: 3px; border-left-style: solid; border-left-color: color-mix(in oklab, var(--ti-accent, var(--border)) 80%, transparent); border-radius: 10px; background: var(--card); color: var(--text); display: grid; grid-template-columns: auto 1fr; grid-template-rows: var(--ti-row1-h,1.2rem) auto; align-items: center; column-gap: 0.6rem; row-gap: 0.1rem; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.hero-note .badge { display: inline-flex; align-items: center; height: calc(var(--ti-row1-h,1.2rem) - 0.1rem); padding: 0 0.45rem; font-size: 0.72rem; line-height: 1; border-radius: 999px; border: 1px solid color-mix(in oklab, var(--ti-accent, var(--border)) 70%, transparent); background: color-mix(in oklab, var(--ti-accent, var(--border)) 10%, transparent); color: color-mix(in oklab, var(--ti-accent, var(--muted)) 70%, var(--text)); }
.hero-note .date { grid-column: 2; grid-row: 1; font-size: 0.85rem; color: var(--muted); line-height: 1; white-space: nowrap; align-self: center; }
.hero-note .title { grid-column: 1 / -1; grid-row: 2; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 1.2; color: var(--text); text-decoration: none; }
.hero-note .title:hover { color: color-mix(in oklab, var(--accent) 65%, var(--text)); text-decoration: underline; }
.ticker-item.preprint { --ti-accent: #7c3aed; }
.ticker-item.workshop { --ti-accent: #1d4ed8; }
.ticker-item.dataset { --ti-accent: #155e75; }
.ticker-item.software { --ti-accent: #166534; }
.ticker-item.talk { --ti-accent: #5b21b6; }
.ticker-item.fellowship { --ti-accent: #0ea5e9; }
.ticker-item.conference { --ti-accent: #1d4ed8; }
.ticker-item.students { --ti-accent: #16a34a; }
.ticker-item.project { --ti-accent: #f59e0b; }
.ticker-item.news { --ti-accent: #334155; }
.hero-note-footer { margin-top: 0.35rem; font-size: 0.92rem; }
.hero-note-footer a { color: var(--accent); text-decoration: none; }
.hero-note-footer a:hover { text-decoration: underline; }

/* Join Us (Prospective Students & Collaborators) */
.cta { padding-top: 0; }
.cta .inner { max-width: var(--maxw); margin: 0 auto; padding: 0 1rem 2rem; }
.cta-head { display: grid; justify-items: center; gap: 0.5rem; padding: 0.75rem 0 0.75rem; text-align: center; }
.cta-head h2 { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.01em; }
.cta-note { color: var(--muted); font-size: 0.95rem; }
.cta-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
@media (max-width: 900px) { .cta-grid { grid-template-columns: 1fr; } }
.cta-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; display: grid; gap: 0.4rem; }
.cta-card h3 { margin: 0; font-size: 1.1rem; }
.cta-card p { margin: 0.1rem 0 0.2rem; }
.cta-list { list-style: none; padding: 0; margin: 0.2rem 0 0; display: grid; gap: 0.35rem; }
.cta-list li { display: grid; grid-template-columns: 16px 1fr; align-items: start; column-gap: 0.4rem; }
.cta-list li::before { content: "•"; color: var(--accent); line-height: 1; margin-top: -1px; }
.cta-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.6rem; }
.cta a.btn { text-decoration: none; }