:root {
  --bg: #f6f8f3;
  --surface: #ffffff;
  --surface-soft: #eff3ea;
  --surface-strong: #e7efe0;
  --border: #dde5d6;
  --text: #161816;
  --heading: #0d0f0d;
  --muted: #596157;
  --accent: #20e56a;
  --accent-deep: #0fbb53;
  --link: #111111;
  --shadow: 0 16px 40px rgba(17, 24, 17, 0.06);
  --radius: 22px;
  --shell: 1240px;
  --header-h: 78px;
}

body[data-theme="dark"] {
  --bg: #0b0e0b;
  --surface: #111411;
  --surface-soft: #151b15;
  --surface-strong: #1a221a;
  --border: #232b23;
  --text: #eef2eb;
  --heading: #ffffff;
  --muted: #96a195;
  --accent: #29ea72;
  --accent-deep: #17ca5a;
  --link: #ffffff;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top center, rgba(32, 229, 106, 0.08), transparent 22%),
    var(--bg);
  color: var(--text);
  font-family: "Manrope", "Segoe UI", sans-serif;
  line-height: 1.6;
}

body.sidebar-open {
  overflow: hidden;
}

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

a:hover {
  text-decoration: underline;
}

code {
  padding: 0.08rem 0.36rem;
  border-radius: 7px;
  background: var(--surface-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92em;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  min-height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
}

.header-row,
.docs-shell,
.site-footer {
  width: min(calc(100% - 32px), var(--shell));
  margin: 0 auto;
}

.header-row {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--heading);
  flex: 0 0 auto;
}

.brand:hover,
.desktop-link:hover,
.menu-button:hover,
.theme-toggle:hover,
.header-link:hover,
.btn:hover,
.sidebar-link:hover,
.mobile-tab:hover {
  text-decoration: none;
}

.brand strong {
  display: block;
  font-size: 0.98rem;
  font-weight: 800;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 6px;
  margin-left: 10px;
}

.desktop-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
}

.desktop-link.is-active {
  background: var(--surface);
  color: var(--heading);
  border: 1px solid var(--border);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-button,
.theme-toggle,
.header-link,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--heading);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.btn {
  background: var(--heading);
  color: #ffffff;
  border-color: var(--heading);
}

.btn.secondary {
  background: transparent;
  color: var(--heading);
  border-color: var(--border);
}

.btn:hover,
.menu-button:hover,
.theme-toggle:hover,
.header-link:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent));
}

.auth-action {
  min-width: 102px;
}

.mobile-nav-shell {
  border-top: 1px solid var(--border);
}

.mobile-nav-label {
  margin: 0;
  padding: 10px 16px 8px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 16px 14px;
  scrollbar-width: none;
}

.mobile-tabs::-webkit-scrollbar {
  display: none;
}

.mobile-tab {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

.mobile-tab.is-active {
  color: var(--heading);
  background: color-mix(in srgb, var(--surface) 72%, var(--accent) 28%);
}

.docs-shell {
  position: relative;
}

.site-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: min(86vw, 320px);
  height: 100vh;
  padding: calc(var(--header-h) + 18px) 16px 24px;
  background: var(--bg);
  border-right: 1px solid var(--border);
  transform: translateX(-100%);
  transition: transform 0.24s ease;
  overflow: auto;
  z-index: 50;
}

body.sidebar-open .site-sidebar {
  transform: translateX(0);
}

.sidebar-backdrop {
  position: fixed;
  inset: 0;
  border: 0;
  background: rgba(8, 10, 8, 0.48);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  z-index: 45;
}

body.sidebar-open .sidebar-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-inner {
  display: grid;
  gap: 18px;
}

.sidebar-kicker,
.sidebar-heading,
.eyebrow,
.mini-label,
.metric-label,
.track-tag,
.rubric-label,
.timeline-date {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-copy,
.lead,
.section-copy,
.page-banner p,
.panel p,
.site-footer p,
.site-footer a,
li {
  color: var(--muted);
  font-size: 0.97rem;
}

.sidebar-group,
.sidebar-links {
  display: grid;
  gap: 6px;
}

.sidebar-link {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--heading);
}

.sidebar-link.is-active {
  background: var(--surface);
  border: 1px solid var(--border);
}

.sidebar-note,
.panel,
.metric-card,
.track-card,
.rule-card,
.reward-card,
.rubric-card,
.definition-card,
.deliverable-card,
.idea-card,
.timeline-card,
.note-card,
.hero,
.page-banner,
.cta-strip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sidebar-note,
.panel,
.metric-card,
.track-card,
.rule-card,
.reward-card,
.rubric-card,
.definition-card,
.deliverable-card,
.idea-card,
.timeline-card,
.note-card {
  padding: 20px;
}

.page-shell {
  width: min(calc(100% - 32px), var(--shell));
  margin: 0 auto;
  padding: 22px 0 64px;
}

.page-shell > *,
.section,
.hero,
.page-banner,
.cta-strip {
  margin: 0 0 24px;
}

.hero,
.page-banner,
.cta-strip {
  padding: 28px;
}

.hero-brand-strip {
  margin-bottom: 12px;
}

.hero-club-logo {
  width: min(260px, 62%);
  height: auto;
  object-fit: contain;
}

.hero {
  display: grid;
  gap: 24px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 86%, var(--accent) 14%), var(--surface) 44%),
    var(--surface);
}

.hero h1,
.page-banner h1 {
  margin: 8px 0 0;
  color: var(--heading);
  font-size: clamp(2.6rem, 6vw, 5.1rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  font-weight: 800;
  max-width: 12ch;
}

.page-banner h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.panel-title,
.track-title,
.section-title,
.footer-title,
.sidebar-note-title {
  margin: 0 0 10px;
  color: var(--heading);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.15rem);
  max-width: 12ch;
}

.track-title,
.panel-title {
  font-size: 1.45rem;
}

.lead {
  max-width: 46ch;
}

.hero-actions,
.button-row,
.badge-row,
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-stats,
.metrics-grid,
.track-grid,
.rules-grid,
.workflow-grid,
.reward-grid,
.rubric-grid,
.deliverables-grid,
.ideas-grid,
.definition-grid,
.footer-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.section-header {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.section-header p {
  margin: 0;
}

.feature-split {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.feature-copy,
.feature-media {
  min-width: 0;
}

.media-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 88%, var(--accent) 12%));
  box-shadow: var(--shadow);
}

.media-card img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.digits-preview-img {
  display: block;
  max-width: 560px;
  margin: 0 auto;
  object-fit: contain;
}

.media-caption {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.artifact-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.artifact-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.reward-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.reward-logo-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-soft);
}

.reward-logo-card img {
  max-width: 100%;
  max-height: 42px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.reward-surprise-copy {
  max-width: 58ch;
  margin: 0;
  color: var(--muted);
}

.reward-logo-grid-surprise {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.reward-logo-card-surprise {
  min-height: 180px;
  padding: 24px;
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 86%, var(--accent) 14%));
}

.reward-logo-card-surprise img {
  max-height: 108px;
}

.reward-logo-card-surprise .reward-logo-brain {
  max-height: 120px;
}

.reward-logo-card-surprise .reward-logo-gpu {
  max-height: 92px;
}

.auth-grid,
.team-grid {
  display: grid;
  gap: 18px;
}

.auth-card,
.team-form-card,
.board-card,
.session-card {
  display: grid;
  gap: 14px;
}

.auth-card-wide {
  grid-column: 1 / -1;
}

.portal-form {
  display: grid;
  gap: 14px;
}

.portal-form-inline {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: end;
}

.field-row {
  display: grid;
  gap: 6px;
}

.field-row span {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--heading);
}

.field-row small {
  color: var(--muted);
  font-weight: 600;
}

.field-row input,
.field-row select,
.multi-select-summary {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  color: var(--heading);
  font: inherit;
}

.field-row input:focus,
.field-row select:focus,
.multi-select-summary:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 60%, transparent);
  outline-offset: 2px;
}

.field-row input[readonly] {
  color: var(--muted);
  background: var(--surface);
}

.multi-select-shell {
  display: grid;
  gap: 10px;
}

.multi-select-summary {
  display: flex;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

.multi-select-summary::-webkit-details-marker {
  display: none;
}

.multi-select-options {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.multi-select-option {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.multi-select-option input {
  width: 18px;
  height: 18px;
}

.status-banner {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
}

.status-banner.muted {
  color: var(--muted);
}

.status-banner.success {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--surface) 70%, var(--accent) 30%);
}

.status-banner.warning {
  border-color: #e1c979;
  background: #fff8e2;
  color: #6b5512;
}

.status-banner.error {
  border-color: #e0a2a2;
  background: #fff0f0;
  color: #8c2b2b;
}

body[data-theme="dark"] .status-banner.warning {
  background: rgba(170, 132, 27, 0.12);
  color: #efd998;
}

body[data-theme="dark"] .status-banner.error {
  background: rgba(156, 48, 48, 0.16);
  color: #ffb0b0;
}

.compact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.player-fields {
  display: grid;
  gap: 12px;
}

.board-grid {
  display: grid;
  gap: 18px;
  align-content: start;
}

.board-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board-card h3,
.board-card p,
.board-card ul {
  margin: 0;
}

.board-card-players ul {
  padding-left: 18px;
}

.cipher-block {
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 12px;
}

.crypto-animation {
  display: grid;
  gap: 10px;
}

.crypto-row {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-soft) 78%, var(--accent) 22%);
}

.crypto-row span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.crypto-row code {
  display: block;
  padding: 0;
  background: transparent;
  font-size: 0.95rem;
  line-height: 1.5;
}

.dataset-links,
.compact-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.dataset-link {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--heading);
}

.dataset-link small {
  color: var(--muted);
}

.playground-controls {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.playground-control label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.playground-control input {
  width: 100%;
  accent-color: var(--accent-deep);
}

.playground-output {
  padding: 14px;
  border-radius: 14px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.playground-output strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.1rem;
  color: var(--heading);
}

.eyebrow,
.mini-label,
.metric-label,
.track-tag,
.rubric-label,
.timeline-date {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
}

.track-badge,
.pill,
.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

.countdown-card span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.countdown-card strong,
.metric-number,
.big-number {
  display: block;
  margin-top: 10px;
  color: var(--heading);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.metric-card,
.track-card,
.definition-card,
.rule-card,
.rubric-card,
.timeline-card,
.idea-card,
.reward-card,
.note-card,
.deliverable-card {
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.metric-card:hover,
.track-card:hover,
.definition-card:hover,
.rule-card:hover,
.rubric-card:hover,
.timeline-card:hover,
.idea-card:hover,
.reward-card:hover,
.deliverable-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--border) 55%, var(--accent));
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-card {
  display: grid;
  gap: 14px;
}

.check-list,
.clean-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.check-list li,
.clean-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
}

.check-list li::before,
.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  transform: translateY(-50%);
}

.code-block {
  margin: 0;
  padding: 16px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-soft) 72%, var(--accent) 28%);
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92rem;
  line-height: 1.7;
}

.rubric-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rubric-bar {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  overflow: hidden;
}

.rubric-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--heading), var(--accent));
}

.cta-strip {
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--surface) 84%, var(--accent) 16%));
}

.site-footer {
  margin-top: 28px;
  padding: 34px 0 42px;
  background: transparent;
  border-top: 1px solid var(--border);
}

.site-footer .footer-title,
.site-footer p,
.site-footer a {
  color: var(--heading);
}

.site-footer p,
.site-footer a {
  opacity: 0.88;
  margin: 0 0 8px;
}

.site-footer a:hover {
  opacity: 1;
}

body[data-theme="dark"] .site-footer {
  background: #070807;
  border-top-color: #151715;
}

body[data-theme="dark"] .site-footer .footer-title,
body[data-theme="dark"] .site-footer p,
body[data-theme="dark"] .site-footer a {
  color: #f5f7f3;
}

.reveal,
.reveal.visible {
  opacity: 1;
  transform: none;
}

.accent-cyan,
.accent-pink,
.accent-yellow,
.accent-green {
  color: var(--accent-deep);
}

@media (max-width: 759px) {
  .header-link:not(.auth-action),
  .brand small {
    display: none;
  }

  .hero,
  .page-banner,
  .cta-strip {
    padding: 22px;
  }
}

@media (min-width: 760px) {
  .hero-stats,
  .metrics-grid,
  .workflow-grid,
  .reward-grid,
  .rubric-grid,
  .definition-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .track-grid,
  .ideas-grid,
  .rules-grid,
  .deliverables-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-split,
  .artifact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-grid,
  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-card {
    grid-template-columns: 132px 1fr;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .menu-button,
  .mobile-nav-shell {
    display: none;
  }

  .desktop-nav {
    display: inline-flex;
  }

  .site-sidebar,
  .sidebar-backdrop {
    display: none;
  }

  .hero {
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.72fr);
    gap: 28px;
  }

  .track-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .metrics-grid,
  .reward-grid,
  .rubric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .definition-grid,
  .rules-grid,
  .ideas-grid,
  .deliverables-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .team-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  }
}

@media (min-width: 1240px) {
  .section-header {
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: end;
  }
}