:root {
  --ink: #14213d;
  --ink-2: #243b53;
  --muted: #667085;
  --paper: #fbfaf7;
  --band: #f2f6f4;
  --line: #d9e2df;
  --terracotta: #b44b34;
  --terracotta-dark: #843526;
  --teal: #0f766e;
  --gold: #c58b2b;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink-2);
  background: var(--paper);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

h1,
h2,
h3,
.brand {
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, serif;
  letter-spacing: 0;
}

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  background: rgba(20, 33, 61, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand {
  color: var(--white);
  font-size: 1.24rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand small {
  color: #dce8e5;
  font-family: "Inter", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: 0.35rem;
  text-transform: uppercase;
}

.nav-list {
  align-items: center;
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: #eef4f3;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-list a:hover {
  color: #f5c46b;
}

.hero {
  min-height: 92vh;
  position: relative;
  display: flex;
  align-items: end;
  padding: 8.8rem 0 5rem;
  color: var(--white);
  background:
    linear-gradient(180deg, rgba(20, 33, 61, 0.40), rgba(20, 33, 61, 0.78)),
    url("../img/rome2.jpg") center / cover no-repeat;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  line-height: 0.98;
  margin: 0 0 1.2rem;
  max-width: 1080px;
}

.hero-kicker {
  color: #ffe0a8;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.hero-subtitle {
  color: #edf7f5;
  font-size: clamp(1.05rem, 1.9vw, 1.35rem);
  max-width: 860px;
}

.hero-actions,
.event-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.6rem;
}

.event-pill {
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: #fff;
  display: inline-flex;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0.6rem 0.85rem;
}

.btn-main,
.btn-ghost {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 800;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.72rem 1rem;
  text-decoration: none;
}

.btn-main {
  background: var(--terracotta);
  color: var(--white);
}

.btn-main:hover {
  background: var(--terracotta-dark);
  color: var(--white);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  border-color: #ffe0a8;
  color: #ffe0a8;
}

.section {
  padding: 5rem 0;
}

.section.band {
  background: var(--band);
}

.section-title {
  margin-bottom: 2rem;
}

.section-title p {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0.3rem 0 0;
  max-width: 760px;
}

.eyebrow {
  color: var(--terracotta);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 0.45rem;
  text-transform: uppercase;
}

.info-box,
.person-card,
.program-item,
.date-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 36px rgba(20, 33, 61, 0.06);
}

.info-box {
  padding: 1.5rem;
}

.lead-copy {
  color: #334155;
  font-size: 1.12rem;
}

.topic-list {
  display: grid;
  gap: 0.65rem 1.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.topic-list li {
  border-left: 3px solid var(--gold);
  padding-left: 0.8rem;
}

.date-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.date-card {
  min-height: 132px;
  padding: 1.1rem;
}

.date-card i {
  color: var(--terracotta);
  font-size: 1.25rem;
}

.date-card strong {
  color: var(--ink);
  display: block;
  font-size: 1.12rem;
  margin: 0.55rem 0 0.2rem;
}

.rome-panel {
  min-height: 470px;
  overflow: hidden;
  position: relative;
}

.rome-panel img {
  height: 100%;
  inset: 0;
  object-fit: cover;
  position: absolute;
  width: 100%;
}

.rome-caption {
  background: rgba(20, 33, 61, 0.82);
  border-radius: 8px;
  bottom: 1rem;
  color: #fff;
  left: 1rem;
  max-width: calc(100% - 2rem);
  padding: 0.9rem 1rem;
  position: absolute;
}

.callout {
  background: var(--ink);
  color: #e9f1ef;
  padding: 1.5rem;
}

.callout h3 {
  color: #fff;
}

.program-list {
  display: grid;
  gap: 0.9rem;
}

.program-item {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: 110px 1fr;
  padding: 1rem;
}

.program-time {
  color: var(--terracotta-dark);
  font-weight: 800;
}

.program-item h3 {
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  font-weight: 800;
  margin: 0 0 0.2rem;
}

.person-card {
  height: 100%;
  padding: 1.15rem;
}

.person-head {
  align-items: center;
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.person-head img {
  border: 3px solid #edf3f1;
  border-radius: 50%;
  flex: 0 0 86px;
  height: 86px;
  object-fit: cover;
  width: 86px;
}

.person-card h3 {
  font-family: "Inter", sans-serif;
  font-size: 1.08rem;
  font-weight: 800;
  margin: 0;
}

.person-role,
.person-affiliation {
  color: var(--muted);
  display: block;
  font-size: 0.92rem;
}

.person-links {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.55rem;
}

.person-links a {
  align-items: center;
  background: #edf3f1;
  border-radius: 8px;
  color: var(--ink);
  display: inline-flex;
  height: 34px;
  justify-content: center;
  text-decoration: none;
  width: 34px;
}

.pc-list {
  columns: 2;
  column-gap: 3rem;
  margin-bottom: 0;
}

.pc-list li {
  break-inside: avoid;
  margin-bottom: 0.35rem;
}

.logo-band {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 2.25rem 0;
}

.logo-band h2 {
  font-family: "Inter", sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 1.15rem;
  text-transform: uppercase;
}

.logo-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1.15rem 1.6rem;
}

.logo-item {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: inline-flex;
  height: 86px;
  justify-content: center;
  padding: 0.8rem 1rem;
  width: 170px;
}

.logo-item img {
  max-height: 58px;
  max-width: 140px;
  object-fit: contain;
}

.logo-item.conference {
  width: 120px;
}

.footer {
  background: #111827;
  color: #d7dee8;
  padding: 2rem 0;
}

.footer a {
  color: #fff;
}

@media (max-width: 991px) {
  .site-header {
    position: absolute;
  }

  .site-header .container-xl {
    align-items: flex-start !important;
    flex-direction: column;
    gap: 0.8rem;
  }

  .nav-list {
    gap: 0.8rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    width: 100%;
  }

  .date-grid,
  .topic-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .hero {
    min-height: 760px;
    padding: 8.5rem 0 3rem;
  }

  .date-grid,
  .topic-list {
    grid-template-columns: 1fr;
  }

  .program-item {
    grid-template-columns: 1fr;
  }

  .logo-row {
    justify-content: center;
  }

  .logo-item {
    width: 146px;
  }

  .pc-list {
    columns: 1;
  }
}