@font-face {
  font-family: 'Custom';
  src: url('font.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0a0a0a;
  --panel: #111111;
  --panel-2: #161616;
  --sidebar: #0c0c0c;
  --ink: #f5f5f5;
  --ink-2: #e5e5e5;
  --muted: #a3a3a3;
  --muted-2: #737373;
  --muted-3: #525252;
  --line: #1f1f1f;
  --line-2: #181818;
  --line-3: #262626;
  --accent: #f5f5f5;
  --accent-hover: #ffffff;
  --accent-ink: #0a0a0a;
  --ok: #4ade80;
  --ok-bg: rgba(74, 222, 128, 0.08);
  --warn: #fbbf24;
  --warn-bg: rgba(251, 191, 36, 0.08);
  --err: #f87171;
  --err-bg: rgba(248, 113, 113, 0.08);
  --info: #60a5fa;
  --info-bg: rgba(96, 165, 250, 0.08);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --radius: 6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink-2);
  font-family: 'Custom', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.003em;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; padding: 0; }
input { font-family: inherit; }

/* Layout */
.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 18px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 4px 10px 22px;
}
.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--ink);
  display: grid;
  place-items: center;
  color: var(--bg);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: -0.02em;
}
.brand-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.015em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 7px 10px;
  border-radius: 5px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  margin-bottom: 1px;
  transition: background .12s ease, color .12s ease;
}
.nav-item:hover {
  background: var(--line-2);
  color: var(--ink);
}
.nav-item.active {
  background: var(--line-3);
  color: var(--ink);
}
.nav-item svg { width: 14px; height: 14px; stroke-width: 1.7; }

.nav-divider {
  height: 1px;
  background: var(--line);
  margin: 12px 6px;
}

.nav-spacer { flex: 1; }

.sidebar-foot {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px 4px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
  padding-top: 14px;
}
.avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--line-3);
  color: var(--ink);
  display: grid; place-items: center;
  font-size: 11px; font-weight: 600;
  border: 1px solid var(--line);
}
.avatar-meta .a-name { font-size: 12.5px; font-weight: 600; color: var(--ink); }
.avatar-meta .a-mode { font-size: 11px; color: var(--muted-2); }

/* Main */
.main {
  padding: 22px 32px 60px;
  max-width: 1100px;
  width: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.crumb {
  font-size: 12.5px;
  color: var(--muted-2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.crumb .sep { color: var(--muted-3); }
.crumb .current { color: var(--ink); font-weight: 500; }

.top-actions { display: flex; gap: 8px; align-items: center; }

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
}
.page-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.page-sub {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 3px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--line-3);
  transition: background .12s ease, border-color .12s ease;
}
.btn:hover { background: var(--line-3); border-color: #333; }
.btn svg { width: 13px; height: 13px; stroke-width: 1.8; }

.btn-primary {
  background: var(--ink);
  color: var(--accent-ink);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-block { width: 100%; justify-content: center; padding: 11px 14px; font-size: 14px; font-weight: 600; }

/* Card */
.card {
  background: var(--panel);
  border-radius: 10px;
  border: 1px solid var(--line);
  overflow: hidden;
}
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.card-link {
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--muted-3);
  text-underline-offset: 3px;
}
.card-link:hover { color: var(--ink); text-decoration-color: var(--muted); }
.card-body { padding: 18px; }
.card-body.tight { padding: 4px 18px; }

/* Coin chip */
.coin {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 500;
}
.coin img {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--line-2);
  filter: grayscale(1) contrast(1.05);
}
.coin.lg img { width: 22px; height: 22px; }

/* Stablecoin overview cards */
.coin-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.coin-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .12s;
}
.coin-card:hover { border-color: var(--line-3); }
.coin-card .top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.coin-card .name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  font-size: 13.5px;
}
.coin-card .name img {
  width: 22px; height: 22px;
  border-radius: 50%;
  filter: grayscale(1) contrast(1.05);
}
.coin-card .ticker {
  font-size: 11px;
  color: var(--muted-2);
  font-weight: 500;
}
.coin-card .meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted-2);
}
.coin-card .meta span:last-child { color: var(--ink-2); font-weight: 500; }

/* Tx table */
.tx-table { width: 100%; }
.tx-row {
  display: grid;
  grid-template-columns: 28px 1fr 140px 130px 100px;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line-2);
  font-size: 13.5px;
}
.tx-row:last-child { border-bottom: none; }
.tx-row.tx-head {
  font-size: 11px;
  color: var(--muted-2);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 18px;
  background: var(--line-2);
  border-bottom: 1px solid var(--line);
}
.tx-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--line-2);
  border: 1px solid var(--line-3);
  display: grid; place-items: center;
  color: var(--muted);
}
.tx-icon svg { width: 12px; height: 12px; stroke-width: 1.8; }
.tx-main .t1 { font-weight: 500; color: var(--ink); }
.tx-main .t2 {
  font-size: 12px;
  color: var(--muted-2);
  margin-top: 1px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}
.tx-rail { font-size: 12.5px; color: var(--muted); }
.tx-amount { text-align: right; font-weight: 500; color: var(--ink); font-variant-numeric: tabular-nums; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--line-2);
  color: var(--muted);
  border: 1px solid var(--line-3);
  justify-self: end;
  font-weight: 500;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); border-color: rgba(74, 222, 128, 0.2); }
.badge.warn { background: var(--warn-bg); color: var(--warn); border-color: rgba(251, 191, 36, 0.2); }
.badge.err { background: var(--err-bg); color: var(--err); border-color: rgba(248, 113, 113, 0.2); }
.badge.info { background: var(--info-bg); color: var(--info); border-color: rgba(96, 165, 250, 0.2); }
.badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 6px currentColor;
}

/* Convert */
.convert-wrap { max-width: 460px; }
.cf {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  background: var(--panel-2);
  transition: border-color .12s;
}
.cf:focus-within { border-color: var(--muted-3); }
.cf + .cf { margin-top: 8px; }
.cf-label {
  display: flex;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--muted-2);
  margin-bottom: 6px;
  font-weight: 500;
}
.cf-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.cf-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 26px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  background: transparent;
  padding: 0;
  width: 100%;
  font-variant-numeric: tabular-nums;
}
.cf-input::placeholder { color: var(--muted-3); }
.coin-select {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px 7px 8px;
  border-radius: 999px;
  background: var(--line-3);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--line-3);
  transition: background .12s, border-color .12s;
}
.coin-select:hover { background: var(--line-2); border-color: #333; }
.coin-select img {
  width: 18px; height: 18px;
  border-radius: 50%;
  filter: grayscale(1) contrast(1.05);
}
.fiat-flag {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--accent-ink);
  display: grid; place-items: center;
  font-size: 11px;
  font-weight: 700;
}
.coin-select svg { width: 11px; height: 11px; color: var(--muted-2); stroke-width: 2; }

.swap-pivot {
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--line-3);
  margin: -15px auto;
  position: relative;
  z-index: 1;
  cursor: pointer;
  transition: border-color .12s, transform .2s;
}
.swap-pivot:hover { border-color: var(--muted-3); transform: rotate(180deg); }
.swap-pivot svg { width: 12px; height: 12px; color: var(--ink-2); stroke-width: 2; }

.quote-meta {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.qrow {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
}
.qrow .k { color: var(--muted-2); }
.qrow .v { color: var(--ink-2); font-weight: 500; }

/* Payment method selector */
.pay-methods {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}
.pay-method {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color .12s, background .12s;
  text-align: left;
  width: 100%;
}
.pay-method:hover { border-color: var(--line-3); }
.pay-method.selected { border-color: var(--ink-2); background: var(--line-2); }
.pm-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--line-3);
  display: grid; place-items: center;
  color: var(--ink);
  flex-shrink: 0;
}
.pm-icon svg { width: 16px; height: 16px; stroke-width: 1.8; }
.pm-main { flex: 1; }
.pm-name { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.pm-desc { font-size: 11.5px; color: var(--muted-2); margin-top: 2px; }
.pm-check {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 1.5px solid var(--line-3);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.pay-method.selected .pm-check {
  background: var(--ink);
  border-color: var(--ink);
}
.pay-method.selected .pm-check::after {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-ink);
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 18px 0 8px;
}

/* Linked accounts */
.linked-row {
  display: grid;
  grid-template-columns: 32px 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line-2);
}
.linked-row:last-child { border-bottom: none; }
.linked-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--line-3);
  color: var(--ink);
  display: grid; place-items: center;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid var(--line);
}
.linked-main .l1 { font-size: 13.5px; font-weight: 500; color: var(--ink); }
.linked-main .l2 { font-size: 12px; color: var(--muted-2); margin-top: 1px; }

/* Settings rows */
.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-2);
}
.setting-row:last-child { border-bottom: none; }
.setting-row .s-key { font-size: 13.5px; font-weight: 500; color: var(--ink); }
.setting-row .s-desc { font-size: 12.5px; color: var(--muted-2); margin-top: 2px; max-width: 480px; }
.toggle {
  width: 32px; height: 18px;
  border-radius: 999px;
  background: var(--line-3);
  position: relative;
  cursor: pointer;
  transition: background .15s;
  flex-shrink: 0;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--muted);
  transition: left .15s, background .15s;
}
.toggle.on { background: var(--ink); }
.toggle.on::after { left: 16px; background: var(--accent-ink); }

/* API */
.code-block {
  background: #050505;
  color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
}
.code-block .k { color: var(--ink); font-weight: 600; }
.code-block .s { color: var(--muted); }
.code-block .n { color: var(--muted); }
.code-block .c { color: var(--muted-3); font-style: italic; }

.api-key-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-2);
}
.api-key-row:last-child { border-bottom: none; }
.api-key-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 90px;
}
.api-key {
  flex: 1;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12.5px;
  color: var(--ink-2);
  background: var(--line-2);
  border: 1px solid var(--line);
  padding: 7px 10px;
  border-radius: 5px;
}

/* Docs */
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.doc-card {
  display: block;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color .15s, transform .15s;
}
.doc-card:hover { border-color: var(--line-3); transform: translateY(-1px); }
.doc-card h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
.doc-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.55; }
.doc-card .arrow {
  display: inline-block;
  margin-top: 10px;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
}

/* Views */
.view { display: none; }
.view.active { display: block; }

/* Demo pill */
.demo-pill {
  position: fixed;
  bottom: 14px;
  right: 14px;
  background: var(--panel);
  border: 1px solid var(--line-3);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--muted);
  font-weight: 500;
}
.demo-pill .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-3); border-radius: 5px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #333; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: 18px; }
  .coin-grid, .docs-grid { grid-template-columns: 1fr; }
  .tx-row { grid-template-columns: 28px 1fr auto; }
  .tx-row .tx-rail, .tx-row .tx-amount { display: none; }
}