/* SIU brand: maroon #720000, white; neutrals for text */
:root {
  --maroon: #720000;
  --maroon-deep: #4a0000;
  --maroon-ink: #2b0000;
  --rose: #f7efee;
  --sand: #faf7f5;
  --ink: #1c1a1a;
  --muted: #5d5757;
  --line: #e6dfdd;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  --max: 1140px;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body { margin: 0; font-family: var(--sans); font-size: 1.0625rem; line-height: 1.7; color: var(--ink); background: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--maroon); text-underline-offset: 3px; }
a:hover { color: var(--maroon-deep); }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.15; margin: 0; letter-spacing: -.01em; overflow-wrap: break-word; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }
:focus-visible { outline: 3px solid #c98a8a; outline-offset: 2px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--maroon); color: #fff; padding: .5rem 1rem; z-index: 100; }
.skip-link:focus { left: 0; }

.kicker { font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--maroon); margin-bottom: .75rem; display: flex; align-items: center; gap: .6rem; }
.kicker::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 680px; }
.note { font-size: .85rem; color: var(--muted); margin-top: 1rem; }
.text-link { display: inline-block; padding: .35rem 0; font-weight: 600; text-decoration: none; border-bottom: 2px solid currentColor; padding-bottom: 1px; }

/* Buttons */
.btn { display: inline-block; max-width: 100%; text-align: center; overflow-wrap: anywhere; font: 600 .95rem/1 var(--sans); padding: .95rem 1.4rem; border-radius: var(--radius); text-decoration: none; border: 2px solid var(--maroon); transition: background .15s, color .15s, transform .15s; cursor: pointer; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--maroon); color: #fff; }
.btn-primary:hover { background: var(--maroon-deep); border-color: var(--maroon-deep); color: #fff; }
.btn-ghost { background: transparent; color: var(--maroon); }
.btn-ghost:hover { background: var(--maroon); color: #fff; }
.btn-light { background: #fff; color: var(--maroon); border-color: #fff; }
.btn-light:hover { background: transparent; color: #fff; }
.btn-sm { padding: .7rem 1.1rem; font-size: .9rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--line); }
.site-header::before { content: ""; display: block; height: 4px; background: var(--maroon); }
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--ink); }
.brand-mark { display: grid; place-items: center; width: 2.2rem; height: 2.2rem; background: var(--maroon); color: #fff; font: 700 .95rem var(--serif); border-radius: 4px; }
.brand-name { font: 700 1.1rem var(--serif); white-space: nowrap; }
.nav-links { list-style: none; display: flex; align-items: center; gap: 1.5rem; margin: 0; padding: 0; }
.nav-links a { display: inline-block; padding: .5rem 0; color: var(--ink); text-decoration: none; font-weight: 500; font-size: .93rem; white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--maroon); }
.nav-links a.nav-cta { background: var(--maroon); color: #fff; padding: .55rem 1rem; border-radius: var(--radius); }
.nav-links a.nav-cta:hover { background: var(--maroon-deep); color: #fff; }
.nav-toggle { display: none; background: none; border: 0; padding: .6rem; margin-right: -.6rem; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

/* Hero */
.hero { background: var(--sand); padding: 5rem 0 4.5rem; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -12%; top: -30%; width: 55%; height: 160%; background: var(--rose); transform: rotate(8deg); z-index: 0; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 4rem; align-items: center; }
.eyebrow { font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--maroon); margin-bottom: 1.25rem; }
.hero h1 { font-size: clamp(2.1rem, 6vw, 4.4rem); font-weight: 700; margin-bottom: 1.5rem; }
.hero h1 em { font-style: italic; color: var(--maroon); font-weight: 500; }
.hero-lede { font-size: 1.2rem; color: #3e3838; max-width: 600px; margin-bottom: 2rem; }
.hero-links { display: flex; flex-wrap: wrap; gap: .85rem; }
.hero-photo { justify-self: center; text-align: center; }
.photo-frame { position: relative; display: inline-block; max-width: 100%; margin: 0 0 18px; }
.photo-frame img { object-position: center top; }
.photo-frame::before { content: ""; position: absolute; inset: 18px 18px -18px -18px; border: 2px solid var(--maroon); border-radius: var(--radius); }
.photo-placeholder, .photo-frame img { position: relative; width: 340px; max-width: 100%; height: auto; aspect-ratio: 1; border-radius: var(--radius); object-fit: cover; }
.photo-placeholder { background: linear-gradient(160deg, var(--maroon), var(--maroon-ink)); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.photo-placeholder span { font: 700 5rem/1 var(--serif); }
.photo-placeholder small { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; opacity: .75; margin-top: .75rem; }
.photo-caption { font-size: .85rem; color: var(--muted); margin-top: 1rem; line-height: 1.5; }

/* Proof bar */
.proof { background: var(--maroon); color: #fff; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { padding: 1.75rem 1.25rem; border-left: 1px solid rgba(255,255,255,.18); }
.proof-item:first-child { border-left: 0; padding-left: 0; }
.proof-num { display: block; font: 700 2rem/1.1 var(--serif); }
.proof-label { display: block; font-size: .85rem; line-height: 1.4; opacity: .85; margin-top: .2rem; }

/* Sections */
.section { padding: 6rem 0; }
.section.tint { background: var(--sand); }
.section.dark { background: var(--maroon-ink); color: #f3e9e8; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section.dark .kicker { color: #e8b4b4; }
.section.dark .lead { color: #d9c7c6; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.section-head h2 { margin-bottom: 0; }

/* About */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 4rem; }
.prose p { color: #3e3838; }
.credentials { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3rem; margin-top: 4rem; }
.cred-col h3 { font-size: 1.1rem; padding-bottom: .75rem; border-bottom: 2px solid var(--ink); }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { display: grid; grid-template-columns: 80px 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); line-height: 1.5; }
.timeline .year { font-weight: 700; color: var(--maroon); font-size: .9rem; }

/* Expertise */
.expertise { margin-top: 4rem; }
.expertise > h3 { font-size: 1.1rem; padding-bottom: .75rem; border-bottom: 2px solid var(--ink); margin-bottom: 1.5rem; }
.skill-groups { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; }
.skill-group h4 { font: 700 .78rem var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--maroon); margin: 0 0 .75rem; }
.skills { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.skills li { font-size: .88rem; line-height: 1.3; padding: .4rem .75rem; border: 1px solid var(--line); border-radius: 999px; background: var(--sand); }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
.pillar { border-top: 2px solid #8a3a3a; padding-top: 1.5rem; }
.pillar-num { font: 700 1rem var(--serif); color: #e8b4b4; display: block; margin-bottom: .75rem; }
.pillar h3 { font-size: 1.45rem; margin-bottom: .75rem; }
.pillar p { color: #d9c7c6; margin: 0; }

/* Publications */
.featured-pub { background: var(--rose); border-left: 6px solid var(--maroon); border-radius: var(--radius); padding: 2rem 2.25rem; margin-bottom: 2.5rem; }
.featured-pub h3 { font-size: clamp(1.3rem, 2.4vw, 1.75rem); margin: .75rem 0; }
.featured-pub .pub-authors { margin: 0; }
.tag, .course-tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; background: var(--maroon); color: #fff; padding: .3rem .6rem; border-radius: 3px; }
.pub-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--ink); }
.metrics-inline { display: flex; gap: 1.5rem; font-size: .95rem; color: var(--muted); }
.metrics-inline strong { font: 700 1.3rem var(--serif); color: var(--maroon); margin-right: .2rem; }
.pub-filter { display: flex; gap: .5rem; }
.chip { font: 500 .88rem var(--sans); padding: .55rem 1rem; min-height: 36px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink); cursor: pointer; }
.chip.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.pubs { list-style: none; padding: 0; margin: 0; counter-reset: pub; }
.pubs li { padding: 1.25rem 0 1.25rem 3rem; border-bottom: 1px solid var(--line); position: relative; counter-increment: pub; }
.pubs li::before { content: counter(pub, decimal-leading-zero); position: absolute; left: 0; top: 1.3rem; font: 700 .95rem var(--serif); color: var(--maroon); }
.pubs p { margin: 0; }
.pub-title { font-weight: 600; font-size: 1.05rem; line-height: 1.45; margin-bottom: .3rem !important; }
.pub-authors { color: var(--muted); font-size: .95rem; }
.pub-meta { font-size: .9rem; color: var(--muted); }
.pub-year { font-weight: 600; color: var(--ink); }

/* Recognition */
.award-row-top { margin: 2rem 0 0; }
.award-row-top + .press-feature { margin-top: 1.5rem; }
.award-highlight { border-top: 4px solid var(--maroon); }
.award-count { display: inline-block; vertical-align: middle; font: 700 .8rem var(--sans); background: var(--maroon); color: #fff; padding: .2rem .5rem; border-radius: 3px; margin-left: .35rem; }

.press-feature { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 2rem; }
.press-body { padding: 2.5rem; }
.press-body h3 { font-size: 1.6rem; margin-bottom: 1rem; }
.press-meta { font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--maroon); margin-bottom: .6rem; }
.press-quote { margin: 0; background: var(--maroon); color: #fff; padding: 2.5rem; display: flex; flex-direction: column; justify-content: center; }
.press-quote p { font: 500 italic 1.5rem/1.35 var(--serif); margin-bottom: 1.25rem; }
.press-quote cite { font-style: normal; font-size: .85rem; opacity: .8; }
.press-feature + .press-feature { margin-top: 1.5rem; }
.press-image { margin: 0; background: var(--sand); }
.press-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.award-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1.5rem; }
.award-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem 2rem; }
.award-card h3 { margin-bottom: .5rem; }
.award-card p:last-child { margin: 0; color: var(--muted); }

/* Teaching */
.cert { display: flex; align-items: center; gap: 1.25rem; margin-top: 1.25rem; padding: 1.25rem 1.5rem; background: var(--sand); border: 1px solid var(--line); border-radius: var(--radius); max-width: 560px; }
.cert-logo { flex: none; width: 56px; height: auto; }
.cert h3 { font-size: 1.25rem; margin-bottom: .2rem; padding-bottom: 0; border-bottom: 0; }
.cert .press-meta { margin-bottom: .3rem; line-height: 1.5; }
.cert-issuer { margin: 0; color: var(--muted); font-size: .95rem; }

.courses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
.course { display: flex; flex-direction: column; align-items: flex-start; border: 1px solid var(--line); border-top: 4px solid var(--maroon); border-radius: var(--radius); padding: 1.75rem; background: #fff; }
.course h3 { font-size: 1.35rem; margin: 1rem 0 .75rem; }
.course p { font-size: .97rem; color: #3e3838; }
.course .prereq { align-self: stretch; margin-top: auto; margin-bottom: 0; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); }

/* Press kit */
.press-kit { display: grid; grid-template-columns: 1fr 1.3fr; gap: 3rem; align-items: start; }
.bio-box { background: #fff; border: 1px solid var(--line); border-left: 6px solid var(--maroon); border-radius: var(--radius); padding: 2rem; }
.bio-box p { color: #3e3838; }
.copy-status { margin-left: .75rem; font-size: .9rem; color: var(--maroon); font-weight: 600; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 4rem; align-items: start; }
.contact h2 { font-size: clamp(2.4rem, 5vw, 3.5rem); }
.contact-cards { display: grid; gap: 1.25rem; }
.contact-card { border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius); padding: 1.5rem 1.75rem; }
.contact-card h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .12em; font-family: var(--sans); color: #e8b4b4 !important; margin-bottom: .75rem; }
.contact-card p { margin: 0; }
.contact a:not(.btn) { color: #fff; }
.link-list { list-style: none; padding: 0; margin: 0; }
.link-list li { margin: 0; }
.link-list a { display: inline-block; padding: .45rem 0; }

.site-footer { background: #160000; color: #c9b7b6; font-size: .85rem; padding: 1.5rem 0; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; }
.site-footer p { margin: 0; }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner, .about-grid, .credentials, .press-kit, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-photo { order: -1; }
  .pillars, .courses { grid-template-columns: 1fr; }
  .press-feature, .award-row { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(3) { border-left: 0; padding-left: 0; }
  .proof-item { border-top: 1px solid rgba(255,255,255,.18); }
  .proof-item:nth-child(-n+2) { border-top: 0; }
}
@media (max-width: 960px) {
  .skill-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 640px) and (max-width: 960px) {
  .pillars, .courses { grid-template-columns: repeat(2, 1fr); }
  .courses .course:last-child { grid-column: 1 / -1; }
  .award-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: calc(4rem + 4px); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: .5rem 1.5rem 1.25rem; box-shadow: 0 8px 20px rgba(0,0,0,.08); max-height: calc(100vh - 4rem); overflow-y: auto; }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: .75rem 0; }
  .nav-links a.nav-cta { text-align: center; margin-top: .5rem; }
}
@media (max-width: 760px) {
  .hero { padding: 3rem 0; }
  .hero::after { display: none; }
  .section { padding: 4rem 0; }
  .press-body, .press-quote, .featured-pub { padding: 1.75rem; }
  .press-quote p { font-size: 1.3rem; }
  .pubs li { padding-left: 2.4rem; }
  .proof-num { font-size: 1.6rem; }
  .bio-box { padding: 1.5rem; }
}
@media (max-width: 480px) {
  .skill-groups { grid-template-columns: 1fr; gap: 1.5rem; }
  .cert { padding: 1rem 1.15rem; gap: 1rem; }
  .cert-logo { width: 44px; }
  .container { padding: 0 1.15rem; }
  .photo-placeholder, .photo-frame img { width: 200px; }
  .hero-links .btn { flex: 1 1 100%; }
  .timeline li { grid-template-columns: 1fr; gap: .15rem; }
  .proof-item { padding: 1.25rem .75rem; }
  .proof-num { font-size: 1.35rem; }
  .press-body, .press-quote, .featured-pub, .award-card, .course, .contact-card { padding: 1.35rem; }
  .metrics-inline { gap: 1rem; flex-wrap: wrap; }
  .footer-inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn:hover { transform: none; } }
@media print { .site-header, .pub-filter, .hero-links, #copy-bio { display: none; } .section { padding: 1.5rem 0; } .section.dark { background: #fff; color: #000; } }