@import url("https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;600;700&family=Source+Serif+4:wght@600;700&display=swap");

:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #eef3f8;
  --border: #d8e0e7;
  --text: #2e3440;
  --muted: #66758a;
  --heading: #14233a;
  --accent: #1f4f7f;
  --accent-strong: #153552;
  --accent-soft: #dce9f5;
  --success: #2a6b5a;
  --shadow: 0 18px 40px rgba(20, 35, 58, 0.08);
  --max-width: 1280px;
  --sidebar-width: 292px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

video {
  border-radius: 14px;
  background: #0e1726;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.65rem;
  color: var(--heading);
  line-height: 1.2;
}

h1,
h2,
h3 {
  font-family: "Source Serif 4", serif;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
}

h2 {
  font-size: clamp(1.45rem, 2.3vw, 1.95rem);
  margin-top: 2.2rem;
}

h3 {
  font-size: 1.2rem;
  margin-top: 1.6rem;
}

p,
ul,
ol,
table,
blockquote {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.35rem;
}

code {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Consolas, monospace;
  font-size: 0.93em;
  background: #eef3f7;
  border-radius: 6px;
  padding: 0.08rem 0.35rem;
}

.site-shell {
  min-height: 100vh;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(216, 224, 231, 0.92);
  backdrop-filter: blur(16px);
}

.masthead__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 70px;
}

.site-nav__brand {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--heading);
  white-space: nowrap;
}

.site-nav__toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--heading);
  border-radius: 10px;
  padding: 0.5rem 0.8rem;
  font: inherit;
  cursor: pointer;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.98rem;
}

.site-nav__links a {
  color: var(--muted);
  font-weight: 600;
}

.site-nav__links a.is-current {
  color: var(--heading);
}

.page-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 3.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(260px, var(--sidebar-width)) minmax(0, 1fr);
}

.sidebar {
  align-self: start;
}

.sidebar__sticky {
  position: sticky;
  top: 94px;
}

.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 1.4rem;
}

.profile-card__avatar {
  width: 116px;
  height: 116px;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(145deg, #f0f6fd, #d8e5f1);
  margin-bottom: 1rem;
}

.profile-card__title {
  font-size: 1.45rem;
  margin-bottom: 0.3rem;
}

.profile-card__subtitle {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.profile-card__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}

.profile-card__button:hover,
.profile-card__button:focus-visible {
  color: #fff;
  text-decoration: none;
  background: #102742;
}

.profile-card__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.profile-card__meta li {
  display: flex;
  gap: 0.7rem;
  color: var(--muted);
  align-items: flex-start;
}

.profile-card__meta strong {
  color: var(--heading);
}

.profile-card__dot {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 0.45rem;
}

.content {
  min-width: 0;
}

.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 2rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--accent-strong);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.conference-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 1.4rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(180deg, #fbfdff 0%, #f2f7fb 100%);
}

.conference-logo img {
  width: min(100%, 320px);
  height: auto;
}

.data-figure {
  margin: 1.35rem 0 1.6rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, #fbfdff 0%, #f2f7fb 100%);
}

.data-figure img {
  width: 100%;
  height: auto;
  border-radius: 16px;
}

.hero-title {
  margin: 0 0 1.2rem;
  max-width: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, 0.95fr);
  gap: 1.6rem;
  align-items: start;
  margin-bottom: 1.2rem;
}

.hero__copy {
  min-width: 0;
}

.hero p.lead {
  font-size: 1.08rem;
  color: #3e4c5f;
  max-width: 64ch;
}

.hero__visual {
  background: linear-gradient(180deg, #edf4fb 0%, #dbe7f2 100%);
  border: 1px solid #d6e2ed;
  border-radius: 26px;
  padding: 1rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.button:hover,
.button:focus-visible {
  color: #fff;
  text-decoration: none;
  background: var(--accent-strong);
}

.button--ghost {
  background: var(--surface);
  color: var(--accent-strong);
  border-color: var(--border);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  color: var(--accent-strong);
  background: #f5f8fb;
}

.callout,
.note,
.panel-grid > article,
.metric-card,
.resource-card {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.callout {
  padding: 1rem 1.1rem;
  margin: 1.3rem 0;
}

.note {
  padding: 0.9rem 1rem;
  background: linear-gradient(180deg, #fbfcfe 0%, #f3f7fb 100%);
  color: #44546a;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.5rem 0 0;
}

.stat-strip__item {
  background: linear-gradient(180deg, #f9fbfd 0%, #edf3f8 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1rem;
}

.stat-strip__value {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--heading);
}

.stat-strip__label {
  color: var(--muted);
  font-size: 0.92rem;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.15rem 0;
}

.panel-grid > article {
  padding: 1.1rem;
}

.task-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.34rem 0.75rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
  font-size: 0.82rem;
}

.chip--muted {
  background: #edf1f5;
  color: #546477;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0.8rem 0 0;
}

.timeline {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  border-left: 2px solid var(--accent-soft);
}

.timeline li {
  position: relative;
  padding-left: 1.3rem;
  margin-left: 0.45rem;
  margin-bottom: 1rem;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -0.58rem;
  top: 0.4rem;
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px #edf4fb;
}

.timeline strong {
  display: block;
  color: var(--heading);
}

.table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

th,
td {
  text-align: left;
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: #f6f9fc;
  color: var(--heading);
  font-weight: 700;
}

tr:last-child td {
  border-bottom: none;
}

.resource-grid,
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.resource-card,
.metric-card {
  padding: 1rem 1.05rem;
}

.resource-card h3,
.metric-card h3 {
  margin-top: 0;
}

.resource-card p,
.metric-card p {
  color: #47566a;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.split-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  background: #fbfdff;
}

.split-card strong {
  display: block;
  color: var(--heading);
  margin-bottom: 0.25rem;
}

.footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer__inner {
  padding: 1rem 0 0;
  border-top: 1px solid rgba(216, 224, 231, 0.92);
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 2rem 0;
}

.kicker {
  color: var(--muted);
  font-size: 0.96rem;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #fcfdff;
  padding: 1rem;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-top: 0;
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.sponsor-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #ffffff;
}

.sponsor-card img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: contain;
}

.tagline-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.tagline-list li {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: #eef3f8;
  color: var(--accent-strong);
  font-weight: 600;
}

@media (max-width: 1100px) {
  .page-wrap {
    grid-template-columns: 1fr;
  }

  .sidebar__sticky {
    position: static;
  }

  .hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .site-nav {
    flex-wrap: wrap;
    padding: 0.8rem 0;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__links {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: 0.5rem;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .content-card {
    padding: 1.35rem;
    border-radius: 22px;
  }

  .stat-strip,
  .panel-grid,
  .resource-grid,
  .metric-grid,
  .split-grid,
  .sponsor-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .masthead__inner,
  .page-wrap,
  .footer {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }

  .profile-card,
  .content-card {
    padding: 1.1rem;
  }

  h1 {
    font-size: 1.85rem;
  }
}