:root {
  --bg: #f5f5f5;
  --surface: #ffffff;
  --card: #f0f0f0;
  --border: rgba(0, 0, 0, 0.08);
  --border-hi: rgba(0, 0, 0, 0.18);
  --text: #000000;
  --muted: #888888;
  --dim: #cccccc;
  --green: #0a7a2f;
  --red: #9a3412;
  --mono: "DM Mono", ui-monospace, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  height: 100%;
  max-height: 100dvh;
  overflow: hidden;
}

body {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100%;
  max-height: 100dvh;
}

.header {
  border-bottom: 1px solid var(--border);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 0;
  position: relative;
  z-index: 2;
}

.stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 12px 20px;
  min-height: 0;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  height: 52px;
  width: auto;
  display: block;
  object-fit: contain;
}

.phases {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.phase-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  opacity: 0.25;
  transition: opacity 0.35s;
}

.phase-step.lit { opacity: 1; }
.phase-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--text);
  background: transparent;
}
.phase-step.lit .phase-dot { background: var(--text); }
.phase-label { font-size: 7px; letter-spacing: 0.04em; white-space: nowrap; }
.phase-connector {
  width: 16px;
  height: 1px;
  background: var(--border-hi);
  margin-bottom: 12px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  position: relative;
}

.panel:has(.pop-wrap.open) { z-index: 40; }

.panel-head {
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: visible;
  flex-shrink: 0;
}

.panel-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--border-hi);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
}

.panel-logo {
  display: block;
  height: 28px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.panel-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
  line-height: 0;
}

.panel-brand .panel-logo {
  height: 32px;
  width: auto;
  padding: 2px 0;
  box-sizing: content-box;
}

.panel-brand .buyer-logo {
  height: 40px;
  padding: 4px 0;
}

.panel-meta { flex: 1; min-width: 0; }
.panel-name { font-size: 12px; font-weight: 500; }
.panel-sub { font-size: 9px; color: var(--muted); margin-top: 1px; }
.panel-brand .panel-sub { margin-top: 0; line-height: 1.4; }
.panel-actions { display: flex; gap: 4px; }

.pop-wrap { position: relative; }
.wallet-btn,
.profile-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-hi);
  border-radius: 8px;
  background: var(--card);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
}
.profile-btn {
  border-color: rgba(10, 122, 47, 0.45);
  background: #f6fff8;
  color: var(--green);
  font-size: 12px;
}
.wallet-btn:hover,
.profile-btn:hover { border-color: var(--text); background: var(--surface); }

.popover {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 280px;
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  padding: 10px 12px;
  z-index: 50;
  max-height: min(380px, 60vh);
  overflow-y: auto;
}
.popover.profile-pop {
  width: min(340px, calc(100vw - 24px));
  max-height: min(440px, 70vh);
}
.pop-wrap.open .popover { display: block; }
.pop-title,
.pop-subtitle {
  font-size: 8px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.pop-title { margin-bottom: 6px; }
.pop-subtitle { margin: 10px 0 4px; }

.tab-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-bottom: 8px; }
.profile-tab-bar { grid-template-columns: repeat(4, 1fr); }
.tab-btn {
  font: inherit;
  font-size: 9px;
  padding: 5px 4px;
  border-radius: 6px;
  border: 1px solid var(--border-hi);
  background: transparent;
  cursor: pointer;
}
.tab-btn.active { background: #000; color: #fff; border-color: #000; }
.tab-panel {
  display: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fafafa;
}
.tab-panel.active { display: block; }

.kv {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
  font-size: 9px;
}
.kv:last-child { border-bottom: none; }
.kv span { color: var(--muted); }
.kv strong { font-weight: 500; text-align: right; word-break: break-all; }
.kv-wrap { align-items: flex-start; }
.kv-wrap strong { font-size: 10px; line-height: 1.35; max-width: 62%; }

.profile-pop .kv,
.profile-pop .wallet-muted,
#wallet-base .kv {
  font-size: 11px;
  line-height: 1.4;
}
.profile-pop .tab-btn { font-size: 10px; padding: 6px 2px; }

.wallet-muted { font-size: 11px; color: var(--muted); padding: 8px 0; }

.verify-list { display: flex; flex-direction: column; gap: 0; }
.verify-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.verify-row:last-child { border-bottom: none; }
.verify-row span { color: var(--muted); }
.verify-row a {
  color: var(--green);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}
.verify-row a:hover { text-decoration: underline; }

.tx-empty { font-size: 9px; color: var(--dim); padding: 6px 0; }
.tx-row { padding: 4px 0; border-bottom: 1px solid var(--border); font-size: 9px; }
.tx-row:last-child { border-bottom: none; }
.tx-in { color: var(--green); font-weight: 500; }
.tx-out { color: var(--red); font-weight: 500; }
.tx-meta { display: flex; justify-content: space-between; margin-top: 2px; color: var(--muted); }
.tx-meta a { color: var(--muted); text-decoration: none; }
.tx-meta a:hover { color: var(--green); text-decoration: underline; }

.feed {
  flex: 1;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  min-height: 0;
  pointer-events: auto;
  cursor: text;
}

.empty-hint {
  margin: auto;
  max-width: 240px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  pointer-events: none;
}

.bwrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.bwrap.show { opacity: 1; transform: none; }
.bwrap.sent { align-items: flex-end; }
.bwrap.recv { align-items: flex-start; }
.bwrap.mid { align-items: center; }
.blabel { font-size: 9px; color: #aaa; padding: 0 6px; }

.bubble {
  max-width: 88%;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 11px;
  white-space: pre-wrap;
  word-break: break-word;
}
.bubble a { color: var(--green); text-decoration: none; font-weight: 500; }
.bubble a:hover { text-decoration: underline; }
.bubble.out { background: #000; color: #fff; border-bottom-right-radius: 2px; }
.bubble.inc { background: var(--card); border: 1px solid var(--border-hi); color: #222; border-bottom-left-radius: 2px; }
.bubble.sys {
  background: transparent;
  border: 1px solid var(--border-hi);
  color: #555;
  font-size: 10px;
  text-align: center;
  max-width: 100%;
}
#feedSeller .bubble.inc { border: 1.5px solid #000; background: var(--surface); }

.product-row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  opacity: 0;
  transform: translateX(12px);
  transition: opacity 0.35s ease, transform 0.35s ease, border-color 0.2s;
}
.product-row.show { opacity: 1; transform: none; }
.product-row.lead-bid { border-color: rgba(0, 0, 0, 0.35); background: #fafafa; }
.product-row.glow {
  border-color: #000;
  background: #f8f8f8;
}
.product-row.human-pick {
  border-color: var(--green);
  background: #f6fff8;
}
.p-img {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--card);
  border: 1px solid var(--border);
}
.p-ph {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background: var(--card);
  border: 1px solid var(--border);
}
.p-vendor { font-size: 9px; color: var(--muted); }
.p-title { font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.p-price { font-size: 15px; font-weight: 500; margin-top: 2px; }
.p-bid { text-align: right; }
.p-bid-val { font-size: 12px; font-weight: 500; color: var(--green); }
.p-bid-label { font-size: 8px; color: var(--muted); letter-spacing: 0.05em; text-transform: uppercase; }

.approval-bubble {
  padding: 10px 14px;
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  background: var(--surface);
  max-width: 88%;
}
.approval-bubble p { font-size: 11px; margin-bottom: 10px; }
.approval-btns { display: flex; gap: 8px; }
.btn-ok, .btn-no, .rate-btn {
  font: inherit;
  font-size: 11px;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
}
.btn-ok { background: #000; color: #fff; border: none; font-weight: 500; }
.btn-no, .rate-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hi);
}

.receipt-card {
  width: 100%;
  border: 1px solid var(--border-hi);
  border-radius: 8px;
  padding: 10px 12px;
}
.receipt-header {
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  font-size: 9px;
}
.receipt-row span { color: var(--muted); }

.rating-wrap {
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  max-width: 88%;
}
.rating-stars { font-size: 22px; letter-spacing: 6px; cursor: pointer; }
.rating-stars .star { opacity: 0.2; }
.rating-stars .star.on { opacity: 1; }
.rating-val { font-size: 11px; color: var(--muted); margin-top: 6px; }

.stripe-card {
  margin: 8px 0;
  padding: 14px 16px;
  border-radius: 10px;
  background: #111;
  color: #fff;
  aspect-ratio: 1.586;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.stripe-card[data-mode="simulated"] {
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 7px,
      rgba(255, 255, 255, 0.035) 7px,
      rgba(255, 255, 255, 0.035) 8px
    ),
    #161616;
}
.stripe-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.stripe-card-name { font-size: 10px; letter-spacing: 0.16em; }
.stripe-card-badge {
  font-size: 7px;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  white-space: nowrap;
}
.stripe-card[data-mode="simulated"] .stripe-card-badge {
  background: rgba(255, 255, 255, 0.12);
}
.stripe-card-num { font-size: 11px; letter-spacing: 0.12em; }
.stripe-card-meta { display: flex; justify-content: space-between; font-size: 8px; opacity: 0.75; }

.demo-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 10px 40px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 100;
  pointer-events: auto;
}

.input-bar {
  display: flex;
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
  width: 100%;
  max-width: 560px;
  pointer-events: auto;
  position: relative;
  z-index: 101;
}
.input-bar input {
  flex: 1;
  background: transparent;
  border: none;
  font: inherit;
  font-size: 12px;
  padding: 11px 14px;
  outline: none;
  min-width: 0;
  pointer-events: auto;
  cursor: text;
}
.input-bar input::placeholder { color: var(--dim); }
.input-bar button {
  background: #000;
  border: none;
  color: #fff;
  padding: 0 16px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  touch-action: manipulation;
}
.input-bar.is-busy button { opacity: 0.55; }

.demo-prompts {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
  max-width: 100%;
}
.prompt-chip {
  font: inherit;
  font-size: 9px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-hi);
  background: var(--surface);
  cursor: pointer;
}
.demo-prompts .prompt-chip {
  font-size: 12px;
  padding: 7px 14px;
  border-radius: 999px;
}
.prompt-chip:hover { background: var(--card); border-color: var(--text); }
.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.choice-row .prompt-chip { font-size: 10px; }
.choice-chip:disabled {
  cursor: default;
  pointer-events: none;
}
.choice-chip.is-selected {
  opacity: 1;
  border-color: var(--text);
  background: var(--card);
}
.choice-chip.is-spent { opacity: 0.4; }

@media (max-width: 860px) {
  .stage { grid-template-columns: 1fr; padding: 8px; }
  .header { padding: 8px 12px; flex-wrap: nowrap; }
  .brand-logo { height: 40px; }
  .phase-label { display: none; }
  .phase-connector { margin-bottom: 0; }
  .demo-footer { padding: 8px 12px 10px; }
  .phases { overflow-x: auto; justify-content: flex-start; }
}