/* Finance Seminar - Atlanta Fed palette (atlantafed.org primary #0060a0),
   light theme, IP-style layout. */

:root {
  --ink: #1a2733;
  --body: #343a40;
  --muted: #646464;
  --blue: #0060a0;
  --blue-dark: #004878;
  --blue-tint: #eef3f8;
  --blue-soft: #e3edf6;
  --paper: #ffffff;
  --line: #e2e6eb;
  --white: #ffffff;

  --serif: Georgia, "Times New Roman", serif;
  --sans: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--body);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.55;
}
a { color: inherit; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.header-inner {
  width: min(var(--maxw), 100%);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 72px; padding: 16px clamp(20px, 5vw, 44px);
}
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 44px; height: 44px;
  color: var(--white); background: var(--blue);
  font-family: var(--serif); font-size: 18px; font-weight: 700;
}
.brand-text { display: flex; flex-direction: column; font-size: 13px; line-height: 1.2; color: var(--muted); }
.brand-text strong { color: var(--ink); font-size: 15px; font-weight: 600; }
.site-header nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; font-size: 14px; font-weight: 500; }
.site-header nav a { text-decoration: none; color: var(--body); }
.site-header nav a:hover { color: var(--blue); }
.site-header nav a.active { color: var(--blue); }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: var(--white); isolation: isolate;
  display: grid; align-items: end; min-height: 340px;
  padding: clamp(44px, 6vw, 76px) clamp(20px, 5vw, 72px) clamp(26px, 3vw, 38px);
  background-image:
    linear-gradient(90deg, rgba(0, 60, 100, 0.86) 0%, rgba(0, 72, 120, 0.62) 42%, rgba(0, 96, 160, 0.18) 100%),
    url("../img/fed-building.jpg");
  background-size: cover;
  background-position: center 38%;
}
.hero-inner { position: relative; z-index: 1; width: min(var(--maxw), 100%); margin: 0 auto; }
.eyebrow {
  margin: 0 0 16px; color: #cfe3f5;
  font-size: 13px; font-weight: 600; letter-spacing: 1.8px; text-transform: uppercase;
}
.hero h1 {
  max-width: 900px; margin: 0;
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(34px, 5vw, 58px); line-height: 1.02;
  text-shadow: 0 1px 24px rgba(0, 30, 55, 0.35);
}
.hero-copy {
  max-width: 700px; margin: 22px 0 36px;
  color: rgba(255, 255, 255, 0.92); font-size: clamp(15px, 1.5vw, 18px);
}
.hero-meta {
  display: grid; grid-template-columns: repeat(4, minmax(130px, 1fr));
  border: 1px solid rgba(255, 255, 255, 0.32); border-bottom: 0;
  background: rgba(0, 60, 100, 0.42); backdrop-filter: blur(2px);
}
.meta-item { min-height: 104px; padding: 20px 22px; border-right: 1px solid rgba(255, 255, 255, 0.24); }
.meta-item:last-child { border-right: 0; }
.meta-item span { display: block; margin-bottom: 8px; color: #cfe3f5; font-size: 12px; font-weight: 600; letter-spacing: 1.4px; text-transform: uppercase; }
.meta-item strong { display: block; font-size: 18px; line-height: 1.25; }

/* ---------- Sections ---------- */
main { overflow: hidden; }
.section { padding: clamp(22px, 2.6vw, 36px) clamp(20px, 5vw, 72px); }
.section-inner { width: min(var(--maxw), 100%); margin: 0 auto; }
.section h1 { font-family: var(--serif); font-size: clamp(30px, 3.4vw, 42px); line-height: 1.05; margin: 0 0 10px; color: var(--ink); }
.section h2 { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 32px); line-height: 1.1; margin: 0 0 18px; color: var(--ink); }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(15px, 1.5vw, 18px); margin: 0 0 8px; }
.band-soft { background: var(--blue-tint); }
.band-tint { background: var(--blue-tint); }

p { margin: 0 0 1em; }
main a:not(.btn):not(.page-link):not(.contact-link) { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.address-card a { color: #cfe3f5; }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.btn {
  display: inline-block; background: var(--blue); color: var(--white);
  padding: 12px 22px; font-weight: 600; font-size: 15px; text-decoration: none;
  border: 0; cursor: pointer;
}
.btn:hover { background: var(--blue-dark); color: var(--white); }

/* ---------- Next seminar feature ---------- */
.next-up {
  display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 28px; align-items: center;
  padding: 26px clamp(22px, 3vw, 38px);
  background: var(--white); border: 1px solid var(--line); border-left: 5px solid var(--blue);
}
.next-up .label { color: var(--blue); font-size: 12px; font-weight: 600; letter-spacing: 1.4px; text-transform: uppercase; margin: 0 0 10px; }
.next-up .next-date { margin: 0 0 4px; color: var(--muted); }
.next-up .next-speaker { font-family: var(--serif); font-size: clamp(20px, 2.4vw, 28px); margin: 0 0 4px; color: var(--ink); }
.next-up .next-paper { margin: 0; color: var(--body); }

/* ---------- Schedule ---------- */
.schedule { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.seminar { display: grid; grid-template-columns: 210px minmax(0, 1fr); background: var(--white); }
.seminar-when { padding: 24px; border-right: 1px solid var(--line); background: var(--blue-tint); }
.seminar-when .d { font-family: var(--serif); font-size: 18px; font-weight: 700; color: var(--ink); }
.seminar-when .t { display: block; margin-top: 6px; font-size: 13px; font-weight: 650; color: var(--muted); }
.seminar-body { padding: 22px 26px; }
.seminar-speaker { font-family: var(--serif); font-size: clamp(19px, 2vw, 23px); font-weight: 700; margin: 0 0 4px; color: var(--ink); }
.seminar-affil { margin: 0 0 10px; color: var(--blue); font-weight: 400; font-size: 15px; }
.seminar-paper { margin: 0 0 4px; color: var(--ink); font-weight: 600; }
.seminar-tbd .seminar-speaker { color: var(--muted); font-style: italic; }

/* Abstract toggle */
.seminar-abstract-toggle {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s;
}
.seminar-abstract-toggle:hover,
.seminar-abstract-toggle:focus-visible { color: var(--blue); }
.seminar-abstract-text {
  display: none;
  margin-top: 12px;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--body);
  line-height: 1.65;
  background: var(--blue-tint);
  border-left: 3px solid var(--blue);
}

/* Schedule notes: plain text on white, not a banner */
.schedule-notes { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 3px; }
.schedule-notes li { color: var(--muted); font-size: 15px; }

/* Venue note */
.venue-note { margin-top: 36px; max-width: 760px; }

/* Signup widget */
.signup { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.reserve-btn { font-size: 14px; padding: 10px 18px; }
.seat-status { font-size: 14px; font-weight: 700; margin: 0 0 8px; letter-spacing: 0.3px; }
.seat-status.open { color: var(--blue); }
.seat-status.full { color: var(--blue-dark); }
.seat-note { font-size: 14px; margin: 0; }
.signup form { display: grid; gap: 10px; max-width: 380px; margin-top: 10px; }
.signup label { font-size: 13px; color: var(--muted); display: grid; gap: 4px; font-weight: 650; }
.signup input[type="text"], .signup input[type="email"] {
  font: inherit; font-size: 16px; padding: 9px 11px; border: 1px solid var(--line); background: var(--white); color: var(--ink);
}
.signup input:focus-visible { outline: 2px solid var(--blue); outline-offset: 1px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.signup .msg { font-size: 14px; margin: 4px 0 0; }
.signup .msg.ok { color: var(--blue); font-weight: 700; }
.signup .msg.err { color: #b3261e; }
.consent { font-size: 12px; color: var(--muted); margin: 0; }

/* ---------- Speakers ---------- */
.people { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.person { background: var(--white); padding: 24px 26px; }
.person-name { font-family: var(--serif); font-size: 21px; font-weight: 700; margin: 0 0 3px; color: var(--ink); }
.person-name a { text-decoration: none; }
.person-name a:hover { text-decoration: underline; }
.email-btn { font-size: 14px; padding: 9px 16px; }
.person-affil { color: var(--blue); font-weight: 700; font-size: 14px; margin: 0 0 10px; }
.person-paper { margin: 0; color: var(--muted); font-size: 15px; }
.person-date { display: block; margin-top: 8px; font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.person-bio { margin: 0 0 12px; color: var(--body); font-size: 15px; }
.person-contact { margin: 0; font-size: 15px; }

/* ---------- Venue ---------- */
.venue-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,0.8fr); gap: clamp(28px,4vw,56px); align-items: start; }
.address-card { background: var(--blue); color: var(--white); padding: 28px; }
.address-card h3 { margin: 0 0 12px; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: #cfe3f5; }
.address-card p { color: rgba(255,255,255,0.94); }
.map { border: 1px solid var(--line); overflow: hidden; }
.map iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ---------- page-links band ---------- */
.page-links { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.page-link { display: block; min-height: 168px; padding: 28px; background: var(--white); text-decoration: none; }
.page-link span { color: var(--blue); font-size: 12px; font-weight: 500; letter-spacing: 1.2px; text-transform: uppercase; }
.page-link strong { display: block; margin-top: 14px; font-family: var(--serif); font-size: 26px; line-height: 1.1; color: var(--ink); }
.page-link p { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
.page-link:hover { background: var(--blue-tint); }
.page-link:hover strong { color: var(--blue); }

/* ---------- contact band ---------- */
.contact-band { background: var(--blue-tint); }
.contact-band .section-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.contact-band h2 { margin: 0; font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); color: var(--ink); }
.contact-band p { max-width: 600px; margin: 10px 0 0; color: var(--muted); }
.contact-link { flex: 0 0 auto; padding: 14px 20px; color: var(--white); background: var(--blue); font-weight: 600; text-decoration: none; }
.contact-link:hover { background: var(--blue-dark); }

/* ---------- footer ---------- */
.site-footer { padding: 28px clamp(20px, 5vw, 72px); color: var(--muted); background: var(--white); border-top: 1px solid var(--line); font-size: 14px; }
.footer-inner { width: min(var(--maxw), 100%); margin: 0 auto; }
.footer-inner p { margin: 0 0 0.4em; }
.footer-inner a { color: var(--blue); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .site-header { position: static; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-header nav { justify-content: flex-start; }
  .hero { min-height: auto; }
  .hero-meta, .people, .page-links, .venue-grid, .next-up, .contact-band .section-inner { grid-template-columns: 1fr; }
  .meta-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.24); min-height: auto; }
  .seminar { grid-template-columns: 1fr; }
  .seminar-when { border-right: 0; border-bottom: 1px solid var(--line); }
}