:root {
  --color-main: #0b1f3a;
  --color-secondary: #eaf2f8;
  --color-accent: #2f66cc;
  --color-text: #17202a;
  --color-light: #ffffff;
  --shadow: 0 12px 30px rgba(11, 31, 58, 0.12);
  --speaker-photo-size: 82px;
  --featured-photo-size: 220px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Open Sans", Arial, sans-serif;
  color: var(--color-text);
  background-color: var(--color-secondary);
  background-image:
    radial-gradient(circle at 20% 18%, rgba(47, 102, 204, 0.08) 0%, rgba(47, 102, 204, 0.02) 24%, transparent 55%),
    radial-gradient(circle at 88% 12%, rgba(11, 31, 58, 0.08) 0%, rgba(11, 31, 58, 0.02) 26%, transparent 58%);
  line-height: 1.65;
}

h1,
h2,
h3 {
  font-family: "Montserrat", "Open Sans", sans-serif;
  color: var(--color-main);
  line-height: 1.2;
  margin-top: 0;
}

.container {
  width: min(1480px, calc(100% - 1rem));
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 0;
}

.brand {
  font-family: "Montserrat", sans-serif;
  color: var(--color-light);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #071427 0%, #0b1f3a 65%, #16396a 100%);
  color: var(--color-light);
  padding-bottom: 2.2rem;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.92;
}

.hero h1 {
  color: var(--color-light);
  font-size: clamp(1.85rem, 4vw, 3.1rem);
  margin-bottom: 0.35rem;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 0.35rem;
}

.hero-title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  gap: 1.4rem;
}

.hero-heading-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.65rem;
  min-width: 0;
}

.title-logo {
  width: clamp(120px, 22vw, 320px);
  max-width: 100%;
  height: auto;
  flex-shrink: 0;
  align-self: center;
  margin: 0;
}

.eyebrow {
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.x-symbol {
  width: 1em;
  height: 1em;
  object-fit: contain;
  vertical-align: -0.12em;
}

.subtitle {
  font-size: clamp(1rem, 3.1vw, 2.1rem);
  margin: 0;
  font-family: "Montserrat", "Open Sans", sans-serif;
  font-weight: 700;
  line-height: 1.15;
  white-space: normal;
  max-width: 100%;
  overflow-wrap: anywhere;
  text-wrap: pretty;
}

.hero-register {
  align-self: flex-start;
  margin-top: 0.15rem;
}

.summary-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  margin: 1rem 0 1.1rem;
}

.talks-heading {
  font-family: "Montserrat", "Open Sans", sans-serif;
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-weight: 700;
  color: var(--color-light);
  margin: 1rem 0 0.25rem;
}

.summary-card {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
  color: var(--color-text);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: var(--shadow);
  text-align: center;
  border: 1px solid #d6e4f3;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.summary-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(11, 31, 58, 0.18);
}

.summary-card h3 {
  margin: 0.85rem 0 0.45rem;
  font-size: 1.02rem;
}

.summary-card img {
  width: var(--featured-photo-size);
  height: var(--featured-photo-size);
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #cfe0f4;
  margin: 0 auto;
  box-shadow: 0 8px 18px rgba(11, 31, 58, 0.2);
}

.hero-details {
  display: grid;
  gap: 0.25rem;
  margin: 1.5rem 0;
}

.hero-details p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.detail-icon {
  width: 1.2rem;
  text-align: center;
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-block;
  background: var(--color-light);
  color: var(--color-main);
  text-decoration: none;
  padding: 0.75rem 1.1rem;
  border-radius: 10px;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  border: 2px solid transparent;
  min-height: 44px;
}

.button:hover {
  transform: translateY(-1px);
}

.button-secondary {
  background: transparent;
  color: var(--color-light);
  border-color: rgba(255, 255, 255, 0.45);
}

.button-nav {
  padding: 0.55rem 0.95rem;
}

.button-large {
  font-size: 1.05rem;
  padding: 0.95rem 1.3rem;
}

.section {
  padding: 2.4rem 0;
}

.section-muted {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f6f9fc 0%, #edf3fa 100%);
}

.section-muted::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    radial-gradient(circle at 14% 20%, rgba(11, 31, 58, 0.08) 1.1px, transparent 1.2px),
    radial-gradient(circle at 76% 62%, rgba(47, 102, 204, 0.09) 1px, transparent 1.1px);
  background-size: 170px 170px, 210px 210px;
}

.section-muted > .container {
  position: relative;
  z-index: 1;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  max-width: 860px;
  margin: 0 auto;
}

.timeline article,
.card,
.bio-card {
  background: var(--color-light);
  border-radius: 14px;
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

.timeline article {
  border-left: 4px solid #6f93c8;
  border-radius: 8px;
}

.outline-talk-card {
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.outline-talk-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(11, 31, 58, 0.14);
}

.outline-talk-card:focus-visible {
  outline: 3px solid #6f93c8;
  outline-offset: 2px;
}

.talk-abstract {
  margin-top: 0.35rem;
  margin-bottom: 0;
  display: -webkit-box;
  line-clamp: 3;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.outline-talk-card[aria-expanded="true"] .talk-abstract {
  display: block;
  line-clamp: initial;
  -webkit-line-clamp: initial;
  overflow: visible;
}

.grid {
  display: grid;
  gap: 1rem;
}

.talks-grid {
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
}

.card .role {
  color: #456084;
  font-size: 0.95rem;
  margin: 0.45rem 0;
}

.role {
  font-weight: 700;
}

.talk-title {
  margin: 0.65rem 0 0;
  padding: 0.55rem 0.65rem;
  background: #ecf4ff;
  border: 1px solid #cfe0f4;
  border-left: 4px solid #2f66cc;
  border-radius: 10px;
  font-weight: 600;
  font-style: italic;
  line-height: 1.4;
}

.panelists-block {
  background: var(--color-light);
  border-radius: 14px;
  padding: 1.35rem 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid #d9e6f5;
}

.panelists-block h3 {
  margin-bottom: 0.65rem;
}

.panelists-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.35rem;
}

.panelist-moderator {
  margin: 1rem 0 0;
}

.bios-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: start;
}

.bio-card {
  display: grid;
  grid-template-columns: var(--speaker-photo-size) 1fr;
  gap: 0.9rem;
  align-items: start;
  min-height: 235px;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.bio-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(11, 31, 58, 0.14);
}

.bio-card:focus-visible {
  outline: 3px solid #6f93c8;
  outline-offset: 2px;
}

.bio-card img {
  width: var(--speaker-photo-size);
  height: var(--speaker-photo-size);
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #d6e4f3;
}

.speaker-photo-miguel {
  /* Slight zoom compensates extra framing in source photo. */
  transform: scale(1.08);
  object-position: center 20%;
}

.bio-content h3 {
  margin-bottom: 0.45rem;
  min-height: 2.4em;
}

.bio-content .role {
  margin: 0 0 0.45rem;
  color: #456084;
  font-size: 0.95rem;
  line-height: 1.3;
  min-height: 2.6em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.summary-linkedin {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.8rem;
  height: 3.8rem;
  border-radius: 999px;
  background: rgba(10, 102, 194, 0.1);
  color: #0a66c2;
  text-decoration: none;
}

.summary-linkedin:hover {
  background: rgba(10, 102, 194, 0.18);
}

.summary-linkedin svg {
  width: 2.1rem;
  height: 2.1rem;
  fill: currentColor;
  flex-shrink: 0;
}

.bio-social {
  margin: 0 0 0.55rem;
}

.bio-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: #0a66c2;
  font-weight: 700;
  text-decoration: none;
}

.bio-linkedin:hover {
  text-decoration: underline;
}

.bio-linkedin svg {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  flex-shrink: 0;
}

.bio-copy {
  margin-top: 0;
  margin-bottom: 0;
  display: -webkit-box;
  line-clamp: 5;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bio-card[aria-expanded="true"] .bio-copy {
  display: block;
  line-clamp: initial;
  -webkit-line-clamp: initial;
  overflow: visible;
}

.cta {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 24%, rgba(148, 189, 255, 0.2) 0%, rgba(148, 189, 255, 0) 42%),
    linear-gradient(160deg, #081936 0%, var(--color-main) 62%, #12305a 100%);
  color: var(--color-light);
}

.cta h2 {
  color: var(--color-light);
}

.cta-inner {
  display: flex;
  gap: 1.2rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer {
  background: #071427;
  color: #d5dfec;
  padding: 1.7rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer p {
  margin: 0.2rem 0;
}

.footer a {
  color: #d5dfec;
}

.footer-logo {
  width: 128px;
  height: 128px;
  object-fit: contain;
  flex-shrink: 0;
}

@media (max-width: 700px) {
  .container {
    width: min(1480px, calc(100% - 1rem));
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }

  .section {
    padding: 3.2rem 0;
  }

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

  .hero-title-row {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .hero-heading-block {
    text-align: left;
  }

  .title-logo {
    width: min(170px, 50vw);
    justify-self: start;
  }

  .subtitle {
    white-space: normal;
  }

  .summary-card {
    padding: 0.9rem;
  }

  .summary-card img {
    width: min(180px, 60vw);
    height: min(180px, 60vw);
  }

  .bio-card {
    grid-template-columns: 1fr;
    text-align: center;
    min-height: auto;
  }

  .bio-card img {
    margin: 0 auto;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-logo {
    width: 104px;
    height: 104px;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: clamp(1.55rem, 8vw, 2rem);
  }

  .subtitle {
    font-size: 0.97rem;
  }

  .hero-actions,
  .cta-inner {
    width: 100%;
  }

  .hero-actions .button,
  .cta-inner .button {
    width: 100%;
    text-align: center;
  }

  .talks-grid,
  .bios-grid {
    grid-template-columns: 1fr;
  }
}