:root {
  --pera-yellow: #FFEE55;
  --pera-cyan: #21EBBA;
  --pera-orange: #FE6746;
  --pera-black: #0D0D0D;

  --surface: #161616;
  --surface-border: rgba(255, 255, 255, 0.08);
  --surface-hover: rgba(255, 255, 255, 0.04);

  --on-dark: #FFFFFF;
  --on-dark-80: rgba(255, 255, 255, 0.8);
  --on-dark-60: rgba(255, 255, 255, 0.6);
  --on-dark-40: rgba(255, 255, 255, 0.4);
  --on-dark-20: rgba(255, 255, 255, 0.2);
  --on-dark-10: rgba(255, 255, 255, 0.1);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;

  --shell: min(960px, 100% - 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--pera-black);
  color: var(--on-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ========== Header ========== */

.topbar {
  width: var(--shell);
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand { display: flex; align-items: center; text-decoration: none; color: inherit; }
.logo { display: block; height: 28px; width: auto; }

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

.badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--on-dark-10);
  color: var(--on-dark-40);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--pera-cyan);
}
.badge[data-network='mainnet']::before { background: var(--pera-yellow); }

.btn-header-connect {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--on-dark-10);
  border-radius: 999px;
  padding: 8px 16px;
  background: transparent;
  color: var(--on-dark-60);
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
.btn-header-connect:hover { background: var(--surface-hover); border-color: var(--on-dark-20); }
.btn-header-connect:focus-visible { outline: 2px solid var(--pera-cyan); outline-offset: 2px; }
.btn-header-connect.connected {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: -0.01em;
  color: var(--on-dark);
  border-color: var(--on-dark-20);
}

/* ========== Wallet dropdown ========== */

.topbar-right { position: relative; }

.wallet-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 260px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 0;
  z-index: 100;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.dropdown-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--on-dark-10);
}

.dropdown-nfd {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--on-dark);
  margin-bottom: 6px;
}

.dropdown-addr-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.dropdown-addr {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--on-dark-40);
  letter-spacing: -0.02em;
  word-break: break-all;
  flex: 1;
}

.dropdown-copy {
  flex: 0 0 auto;
  background: none;
  border: 0;
  padding: 2px;
  color: var(--on-dark-40);
  cursor: pointer;
  transition: color 100ms ease;
  line-height: 1;
}
.dropdown-copy:hover { color: var(--on-dark); }
.dropdown-copy.copied { color: var(--pera-cyan); }

.dropdown-stats {
  padding: 6px 0;
}

.dropdown-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
}

.dropdown-stat-label {
  font-size: 13px;
  color: var(--on-dark-40);
}

.dropdown-stat-value {
  font-size: 13px;
  font-weight: 700;
  color: var(--on-dark);
  font-family: var(--mono);
}

.dropdown-signout {
  width: 100%;
  padding: 12px 16px;
  border: 0;
  border-top: 1px solid var(--on-dark-10);
  background: transparent;
  color: var(--on-dark-40);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 100ms ease, color 100ms ease;
}
.dropdown-signout:hover { background: rgba(254, 103, 70, 0.1); color: var(--pera-orange); }

/* ========== Hero (always visible) ========== */

.hero {
  width: var(--shell);
  margin: 0 auto;
  padding: 72px 0 56px;
  text-align: center;
}

.hero.compact { padding: 40px 0 32px; }

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pera-yellow);
  margin: 0 0 20px;
}

h1 {
  font-size: clamp(36px, 5.5vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin: 0 0 20px;
}
h1 em { font-style: normal; color: var(--pera-yellow); }

.lede {
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--on-dark-60);
  max-width: 54ch;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.connect-hint {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--on-dark-40);
}

/* ========== Stages (post-connect) ========== */

.stage-center {
  width: var(--shell);
  margin: 0 auto;
  padding: 0 0 48px;
}

/* ========== Buttons ========== */

.btn {
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  border: 0;
  border-radius: 999px;
  padding: 15px 28px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 120ms ease, filter 120ms ease;
  min-height: 52px;
  text-decoration: none;
}
.btn:disabled { cursor: not-allowed; opacity: 0.4; }
.btn:not(:disabled):hover { transform: translateY(-1px); filter: brightness(1.06); }
.btn:not(:disabled):active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid var(--pera-cyan); outline-offset: 3px; }

.btn-primary { background: var(--pera-yellow); color: var(--pera-black); }
.btn-lg { font-size: 16px; padding: 16px 36px; min-height: 56px; }
.btn-claim { background: var(--pera-cyan); color: var(--pera-black); width: 100%; }
.btn-ghost {
  background: transparent;
  color: var(--on-dark);
  border: 1px solid var(--on-dark-10);
  font-weight: 600;
  min-height: 44px;
  padding: 11px 20px;
  font-size: 14px;
}
.btn-ghost:not(:disabled):hover { background: var(--surface-hover); filter: none; }

.spinner {
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: spin 700ms linear infinite;
  flex: 0 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2s; }
  .btn:hover { transform: none; }
}

/* ========== Panel (dark card) ========== */

.panel {
  background: var(--surface);
  color: var(--on-dark);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
}

.panel h2 {
  font-size: 21px;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  font-weight: 700;
}
.panel p { margin: 0 0 20px; color: var(--on-dark-60); font-size: 15px; }
.panel p:last-child { margin-bottom: 0; }

.wallet-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  margin-bottom: 22px;
}
.wallet-row .addr {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--on-dark-80);
}
.wallet-row .disconnect {
  margin-left: auto;
  background: none;
  border: 0;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--on-dark-40);
  cursor: pointer;
  padding: 4px;
}
.wallet-row .disconnect:hover { color: var(--on-dark); }

/* ========== Meter ========== */

.meter { margin: 0 0 22px; }
.meter-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
}
.meter-count {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}
.meter-label { font-size: 14px; color: var(--on-dark-60); }

.meter-track {
  height: 8px;
  border-radius: 999px;
  background: var(--on-dark-10);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--pera-cyan);
  width: 0;
  transition: width 600ms cubic-bezier(0.22, 1, 0.36, 1);
}
.meter-ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--on-dark-40);
  letter-spacing: 0.02em;
}

/* ========== Award ========== */

.award {
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 20px;
  border: 1px solid var(--on-dark-10);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.award-chip {
  width: 44px; height: 44px;
  border-radius: 12px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  font-size: 18px;
  color: var(--pera-black);
}
.award[data-accent='yellow'] .award-chip { background: var(--pera-yellow); }
.award[data-accent='cyan'] .award-chip { background: var(--pera-cyan); }
.award[data-accent='orange'] .award-chip { background: var(--pera-orange); }

.award-name { font-weight: 700; font-size: 16px; letter-spacing: -0.02em; margin: 0 0 2px; }
.award-blurb { font-size: 13.5px; color: var(--on-dark-60); margin: 0; }

/* ========== Notices ========== */

.notice {
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 20px;
  border-left: 3px solid var(--on-dark-10);
  background: rgba(255, 255, 255, 0.04);
  color: var(--on-dark-60);
}
.notice strong { color: var(--on-dark); font-weight: 700; }
.notice[data-kind='good'] { border-left-color: var(--pera-cyan); }
.notice[data-kind='warn'] { border-left-color: var(--pera-orange); }
.notice[data-kind='error'] {
  border-left-color: var(--pera-orange);
  background: rgba(254, 103, 70, 0.12);
  color: rgba(255, 200, 180, 0.9);
}
.notice[data-kind='error'] strong { color: #fff; }

.hero .notice {
  max-width: 480px;
  margin: 20px auto 0;
  text-align: left;
}

/* ========== Evidence ========== */

details.evidence {
  border-top: 1px solid var(--on-dark-10);
  padding-top: 16px;
  margin-top: 4px;
}
details.evidence summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--on-dark-40);
  list-style: none;
}
details.evidence summary::-webkit-details-marker { display: none; }
details.evidence summary::before { content: '▸ '; }
details.evidence[open] summary::before { content: '▾ '; }
details.evidence summary:hover { color: var(--on-dark); }

.evidence dl {
  margin: 14px 0 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 7px 16px;
  font-size: 12.5px;
}
.evidence dt { color: var(--on-dark-40); font-weight: 600; }
.evidence dd {
  margin: 0;
  font-family: var(--mono);
  overflow-wrap: anywhere;
  letter-spacing: -0.02em;
  color: var(--on-dark-60);
}

/* ========== Tiers ========== */

.ladder { width: var(--shell); margin: 0 auto; padding: 8px 0 72px; }
.ladder h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--on-dark-40);
  margin: 0 0 18px;
}
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.tier {
  border: 1px solid var(--on-dark-10);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--surface);
  transition: border-color 150ms ease, background 150ms ease;
}
.tier[data-state='earned'] { background: rgba(255,255,255,0.04); }
.tier[data-state='earned'][data-accent='yellow'] { border-color: var(--pera-yellow); }
.tier[data-state='earned'][data-accent='cyan'] { border-color: var(--pera-cyan); }
.tier[data-state='earned'][data-accent='orange'] { border-color: var(--pera-orange); }

.tier-swatch { width: 30px; height: 6px; border-radius: 999px; margin-bottom: 14px; }
.tier[data-accent='yellow'] .tier-swatch { background: var(--pera-yellow); }
.tier[data-accent='cyan'] .tier-swatch { background: var(--pera-cyan); }
.tier[data-accent='orange'] .tier-swatch { background: var(--pera-orange); }

.tier-req { font-size: 12px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--on-dark-40); margin: 0 0 5px; }
.tier-name { font-size: 17px; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 7px; }
.tier-blurb { font-size: 13.5px; color: var(--on-dark-60); margin: 0; }
.tier-earned {
  display: none;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.tier[data-state='earned'] .tier-earned { display: block; }
.tier[data-accent='yellow'] .tier-earned { color: var(--pera-yellow); }
.tier[data-accent='cyan'] .tier-earned { color: var(--pera-cyan); }
.tier[data-accent='orange'] .tier-earned { color: var(--pera-orange); }

/* ========== Success ========== */

.success-mark {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--pera-cyan);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.success-mark svg { width: 26px; height: 26px; }

.tx-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--on-dark-80);
  text-decoration: none;
  border-bottom: 1.5px solid var(--on-dark-10);
  padding-bottom: 2px;
  overflow-wrap: anywhere;
}
.tx-link:hover { border-bottom-color: var(--on-dark-60); }

/* ========== Footer ========== */

footer {
  width: var(--shell);
  margin: 0 auto;
  padding: 26px 0 44px;
  border-top: 1px solid var(--on-dark-10);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: 13px;
  color: var(--on-dark-40);
}
footer a { color: var(--on-dark-60); text-decoration: none; }
footer a:hover { color: var(--on-dark); text-decoration: underline; }

/* ========== Utilities ========== */

.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ========== Responsive ========== */

@media (max-width: 700px) {
  .tiers { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }
  .hero.compact { padding: 28px 0 20px; }
}
@media (max-width: 560px) {
  .panel { padding: 22px 20px; border-radius: var(--radius); }
  .meter-count { font-size: 36px; }
  .topbar-right { gap: 8px; }
  .btn-header-connect { padding: 7px 12px; font-size: 12px; }
  .btn-lg { font-size: 15px; padding: 14px 28px; }
}