:root {
  --purple-dark: #3d2060;
  --purple: #6b3d91;
  --purple-mid: #8b5bb1;
  --purple-light: #c4a0dc;
  --lavender: #f3eefa;
  --yellow: #f7f2b0;
  --cream: #fffef0;
  --ink: #26203a;
  --grey: #6b6478;
  --border: #e0d5f5;
  --white: #ffffff;
  --accent-pink: #c06ba8;
  --shadow: 0 12px 32px rgba(61, 32, 96, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', -apple-system, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
}

h1, h2, h3, h4 { font-family: 'Poppins', sans-serif; margin: 0 0 0.4em; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: var(--purple); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 254, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1120px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--purple-dark);
  font-size: 1.05rem;
  text-decoration: none;
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-pink), var(--purple));
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1rem;
}
.nav-links {
  display: flex;
  gap: 26px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--purple); }
.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-pink), var(--purple));
  color: white;
  padding: 11px 24px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(107, 61, 145, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(107, 61, 145, 0.36); }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--purple);
  color: var(--purple);
  box-shadow: none;
}
.btn-outline.on-dark {
  border: 1.5px solid rgba(255,255,255,0.75);
  color: white;
  background: rgba(255,255,255,0.08);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #1c1030;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.75;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(30, 14, 54, 0.35) 0%, rgba(30, 14, 54, 0.62) 60%, #1c1030 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  padding: 90px 24px 80px;
  text-align: center;
  color: white;
}
.eyebrow {
  display: inline-block;
  background: rgba(247, 242, 176, 0.16);
  color: var(--yellow);
  border: 1px solid rgba(247, 242, 176, 0.4);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 22px;
  font-weight: 600;
}
.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 18px;
  font-weight: 700;
}
.hero p.lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.86);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  justify-content: center;
  margin-bottom: 36px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
}
.hero-meta span { display: flex; align-items: center; gap: 8px; }
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Sections ---------- */
section { padding: 90px 0; }
.section-label {
  color: var(--purple);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 10px;
  display: block;
}
.section-title {
  font-size: 2.1rem;
  color: var(--purple-dark);
  max-width: 640px;
}
.section-sub {
  color: var(--grey);
  max-width: 620px;
  font-size: 1.03rem;
  margin-bottom: 44px;
}
.section-head { margin-bottom: 40px; }

.alt-bg { background: var(--lavender); }

/* ---------- Agenda ---------- */
.day-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.day-tab {
  padding: 10px 20px;
  border-radius: 24px;
  border: 1.5px solid var(--border);
  background: white;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--grey);
}
.day-tab.active {
  background: var(--purple-dark);
  border-color: var(--purple-dark);
  color: white;
}
.agenda-day { display: none; }
.agenda-day.active { display: block; }
.agenda-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.agenda-row:last-child { border-bottom: none; }
.agenda-time {
  color: var(--purple);
  font-weight: 700;
  font-size: 0.92rem;
}
.agenda-title { font-weight: 600; margin-bottom: 4px; color: var(--ink); }
.agenda-note { color: var(--grey); font-size: 0.92rem; margin: 0; }
.agenda-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--purple);
  background: var(--lavender);
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 6px;
}

/* ---------- Speakers ---------- */
.speaker-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.speaker-card {
  background: white;
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.speaker-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-pink), var(--purple));
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 1.3rem;
  margin-bottom: 18px;
}
.speaker-card h3 { color: var(--purple-dark); font-size: 1.25rem; }
.speaker-role { color: var(--purple); font-weight: 600; font-size: 0.88rem; margin-bottom: 14px; }
.speaker-card p { color: var(--grey); font-size: 0.95rem; }
.speaker-card a.linkedin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
}

/* ---------- Hotels ---------- */
.hotel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.hotel-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.hotel-img {
  height: 200px;
  background-size: cover;
  background-position: center;
}
.hotel-body { padding: 22px 24px 26px; }
.hotel-body h3 { color: var(--purple-dark); font-size: 1.1rem; }
.hotel-body p { color: var(--grey); font-size: 0.9rem; margin-bottom: 10px; }
.hotel-body a { font-size: 0.87rem; font-weight: 600; text-decoration: none; }
.hotel-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.hotel-badge.proposed { background: #eaf7ee; color: #1d8a4a; }
.hotel-badge.alt { background: var(--lavender); color: var(--purple); }

/* ---------- Sitges gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 220px 220px;
  gap: 14px;
}
.gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 16px;
}
.gallery .g1 { grid-row: span 2; }

/* ---------- Signup form ---------- */
.form-wrap {
  background: white;
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
  color: var(--ink);
}
.hint { font-weight: 400; color: var(--grey); font-size: 0.8rem; }
input[type="text"], input[type="email"], input[type="tel"], input[type="date"], input[type="number"], select, textarea {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  font-family: inherit;
  font-size: 0.94rem;
  background: var(--cream);
  color: var(--ink);
}
textarea { resize: vertical; min-height: 80px; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--purple-mid);
  background: white;
}
.checkbox-row { display: flex; align-items: center; gap: 10px; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; font-weight: 500; }
.form-actions { margin-top: 30px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
#form-status { font-size: 0.9rem; font-weight: 600; }
#form-status.ok { color: #1d8a4a; }
#form-status.err { color: #c0392b; }

/* ---------- Footer ---------- */
footer {
  background: var(--purple-dark);
  color: var(--yellow);
  padding: 50px 0 30px;
  text-align: center;
}
footer .brand { color: var(--yellow); justify-content: center; }
footer p { color: rgba(247,242,176,0.75); font-size: 0.88rem; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.1rem; }
  .speaker-grid, .hotel-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; grid-template-rows: 160px 160px 160px; }
  .gallery .g1 { grid-column: span 2; grid-row: span 1; }
  .agenda-row { grid-template-columns: 90px 1fr; }
}