:root {
  --bp-lighter: #344b6a;
  --bp-dark: #0e305b;
  --bp-darker: #081c35;
  --bp-light: #dbe4ee;
  --bp-danger: #fe8e86;
  --bp-warning: #ffc857;
  --bp-success: #a8f0ae;
  --font-content: "Phantom Sans", "Poppins", sans-serif;
  --font-heading: "Poppins", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bp-dark);
  color: white;
  font-family: var(--font-content);
  overscroll-behavior: none;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
}

.grid-bg {
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  position: relative;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 18px;
  padding: 8px 24px;
  transition: background-color 0.15s, color 0.15s, transform 0.12s, box-shadow 0.12s;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 800;
  text-decoration: none;
  border-radius: 0;
  letter-spacing: 0.01em;
}

.btn:focus, .btn:hover {
  transform: scale(1.03);
}

.btn-primary {
  border: 2px solid white;
  background: white;
  color: #1a1a2e;
}

.btn-primary:hover {
  background: var(--bp-light);
  border-color: var(--bp-light);
}

.btn-outline {
  border: 2px solid white;
  background: transparent;
  color: white;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
}

nav {
  background: var(--bp-darker);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: white;
}

.nav-logo img {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--bp-dark);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.25);
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover {
  background: var(--bp-lighter);
  color: white;
}

.nav-links .active {
  border: 2px solid white;
  background: var(--bp-dark);
}

.nav-cta {
  border: 2px solid white !important;
  background: transparent !important;
  color: white !important;
  padding: 5px 16px !important;
  font-size: 14px !important;
}

.nav-cta:hover {
  background: rgba(255,255,255,0.1) !important;
}

@media (max-width: 640px) {
  .nav-links { display: none; }
}

.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 64px;
  position: relative;
  overflow: hidden;
}

.hero-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(52px, 9vw, 100px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: white;
  margin-bottom: 6px;
}

.hero-subtitle {
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 800;
  color: var(--bp-warning);
  margin-bottom: 24px;
  font-family: var(--font-heading);
}

.hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  max-width: 500px;
  margin: 0 auto 36px;
  line-height: 1.6;
  font-weight: 400;
}

.hero p strong {
  color: white;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-actions .btn {
  font-size: 16px;
  padding: 10px 28px;
}

.date-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.15);
  background: var(--bp-darker);
}

.date-cell {
  padding: 14px 28px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.date-cell:last-child {
  border-right: none;
}

.date-cell-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 3px;
}

.date-cell-value {
  font-size: 15px;
  font-weight: 800;
  color: white;
}

.date-cell-value.warn {
  color: var(--bp-warning);
}

@media (max-width: 560px) {
  .date-cell {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex: 1 1 50%;
  }
}

.section {
  padding: 72px 24px;
}

.section.darker {
  background: var(--bp-darker);
}

.section-inner {
  max-width: 960px;
  margin: 0 auto;
}

.section-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--bp-warning);
  margin-bottom: 10px;
}

.section h2 {
  font-size: clamp(28px, 4vw, 44px);
  color: white;
  margin-bottom: 12px;
}

.section-lead {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  max-width: 540px;
  line-height: 1.6;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2px;
  margin-top: 48px;
  border: 2px solid rgba(255,255,255,0.12);
}

.ov-card {
  background: var(--bp-darker);
  padding: 28px 24px;
  transition: background 0.15s;
  border: 1px solid rgba(255,255,255,0.06);
}

.ov-card:hover {
  background: var(--bp-lighter);
}

.ov-icon {
  font-size: 16px;
  font-weight: 800;
  color: var(--bp-warning);
  margin-bottom: 14px;
  display: block;
}

.ov-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
  font-weight: 400;
}

.agenda {
  margin-top: 48px;
}

.ag-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.ag-item:last-child {
  border-bottom: none;
}

.ag-time {
  font-size: 12px;
  font-weight: 800;
  color: var(--bp-warning);
  min-width: 76px;
  padding-top: 2px;
  font-family: "SF Mono", "Roboto Mono", monospace;
  letter-spacing: 0.04em;
}

.ag-line {
  width: 1px;
  background: rgba(255,255,255,0.12);
  align-self: stretch;
  flex-shrink: 0;
  position: relative;
}

.ag-line::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.3);
  position: absolute;
  top: 4px;
  left: -4px;
  transition: background 0.15s, border-color 0.15s;
}

.ag-item:hover .ag-line::before {
  background: var(--bp-warning);
  border-color: var(--bp-warning);
}

.ag-body h4 {
  font-size: 16px;
  font-weight: 800;
  color: white;
  margin-bottom: 5px;
}

.ag-body p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.55;
  font-weight: 400;
}

.rsvp-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: start;
  margin-top: 48px;
}

@media (max-width: 720px) {
  .rsvp-layout { grid-template-columns: 1fr; }
}

.rsvp-info h3 {
  font-size: 22px;
  font-weight: 800;
  color: white;
  margin-bottom: 10px;
}

.rsvp-info p {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
  line-height: 1.65;
  font-weight: 400;
}

.perks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.perk {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}

.perk-mark {
  width: 6px;
  height: 6px;
  background: var(--bp-warning);
  flex-shrink: 0;
}

.rsvp-box {
  background: var(--bp-darker);
  border: 2px solid rgba(255,255,255,0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 48px 32px;
  text-align: center;
}

.rsvp-box h3 {
  font-size: 22px;
  font-weight: 800;
  color: white;
}

.rsvp-box p {
  font-size: 15px;
  color: rgba(255,255,255,0.55);
  max-width: 280px;
  line-height: 1.6;
  font-weight: 400;
}

.rsvp-note {
  font-size: 12px !important;
  color: rgba(255,255,255,0.3) !important;
}

.org-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2px;
  margin-top: 48px;
  border: 2px solid rgba(255,255,255,0.12);
}

.org-card {
  background: var(--bp-darker);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  transition: background 0.15s;
}

.org-card:hover {
  background: var(--bp-lighter);
}

.org-pfp {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bp-warning), var(--bp-danger));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 800;
  color: var(--bp-darker);
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.15);
}

.org-pfp img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
}

.org-name {
  font-size: 15px;
  font-weight: 800;
  color: white;
  line-height: 1.2;
}

.org-post {
  font-size: 12px;
  font-weight: 600;
  color: var(--bp-warning);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.org-contact {
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-heading);
  border: 1px solid rgba(255,255,255,0.25);
  background: transparent;
  color: white;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
  border-radius: 0;
}

.org-contact:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
  transform: scale(1.04);
}

.faq-list {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-item {
  border: 1px solid rgba(255,255,255,0.1);
  background: var(--bp-darker);
  transition: border-color 0.15s;
}

.faq-item.open {
  border-color: rgba(255,255,255,0.4);
}

.faq-q {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 20px;
  text-align: left;
  font-family: var(--font-content);
  font-size: 15px;
  font-weight: 700;
  color: white;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background 0.12s;
}

.faq-q:hover {
  background: var(--bp-lighter);
}

.faq-arrow {
  font-size: 16px;
  color: rgba(255,255,255,0.4);
  transition: transform 0.25s, color 0.15s;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  color: var(--bp-warning);
}

.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 20px;
}

.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 20px 20px;
}

.faq-a p {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  font-weight: 400;
  margin: 0;
}

.faq-a a {
  color: var(--bp-warning);
  text-decoration: underline;
}

.slack-banner {
  background: var(--bp-darker);
  border-top: 2px solid rgba(255,255,255,0.08);
  padding: 32px 24px;
  display: flex;
  justify-content: center;
}

.slack-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  max-width: 960px;
  padding: 20px 40px;
  background: white;
  color: #1a1a2e;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
  border: 2px solid white;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
  letter-spacing: 0.01em;
}

.slack-btn:hover {
  background: var(--bp-light);
  border-color: var(--bp-light);
  transform: scale(1.01);
}

.slack-btn .slack-icon {
  font-size: 22px;
}

footer {
  background: var(--bp-darker);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px 24px;
  text-align: center;
}

.ft-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: white;
  margin-bottom: 8px;
}

.ft-logo span {
  color: var(--bp-warning);
}

.ft-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}

.ft-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.ft-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color 0.15s;
  font-weight: 600;
}

.ft-links a:hover {
  color: white;
}

.wobble-1 {
  animation: wobble 3s ease-in-out infinite;
}

.wobble-2 {
  animation: wobble 3.5s ease-in-out infinite;
  animation-delay: -1s;
}

@keyframes wobble {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}

#organizers {
  padding: 96px 24px;
}

.org-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 56px;
}

.org-card {
  padding: 36px 24px;
  gap: 16px;
}

.org-pfp {
  width: 128px;
  height: 128px;
  font-size: 40px;
}

.org-pfp img {
  width: 128px;
  height: 128px;
}
.org-name {
  font-size: 16px;
}