* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  letter-spacing: 0.025rem;
}

/* ---- Themes ---- */
:root {
  --bg: #fafafa;
  --bg-nav: #fff;
  --bg-input: #fff;
  --bg-hover: #f5f5f5;
  --bg-active: #f5f5f5;
  --text: #444;
  --text-muted: #888;
  --text-dimmed: #aaa;
  --text-heading: #666;
  --border: #ddd;
  --border-strong: #ccc;
  --border-input: #ccc;
  --border-input-focus: #999;
  --border-table: #eee;
  --error: #c44;
  --buy-color: #2a8a2a;
  --sell-color: #c33;
  --new-bg: #fffbe6;
  --new-text: #b8860b;
  --new-border: #e6c619;
}

[data-theme="dark"] {
  --bg: #1a1a1a;
  --bg-nav: #1e1e1e;
  --bg-input: #222;
  --bg-hover: #222;
  --bg-active: #2e2e2e;
  --text: #ccc;
  --text-muted: #666;
  --text-dimmed: #555;
  --text-heading: #777;
  --border: #333;
  --border-strong: #444;
  --border-input: #444;
  --border-input-focus: #666;
  --border-table: #2a2a2a;
  --error: #e55;
  --buy-color: #4caf50;
  --sell-color: #e74c3c;
  --new-bg: #2a2500;
  --new-text: #e6c619;
  --new-border: #5a4e00;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica", Helvetica, Arial, sans-serif;
  font-size: 1.1rem;
  line-height: 1.55;
}

/* ---- Login ---- */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-form { text-align: center; }

.login-form h1 {
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  letter-spacing: 0.125rem;
}

.login-form input {
  display: block;
  width: 15rem;
  padding: 0.55rem 0.75rem;
  margin: 0 auto 0.75rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
}

.login-form input:focus { border-color: var(--border-input-focus); }

.login-form button {
  display: block;
  width: 15rem;
  padding: 0.55rem;
  margin: 0 auto;
  border: 1px solid var(--border-strong);
  background: var(--bg-input);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
}

.login-form button:hover { background: var(--bg-hover); }

.error {
  color: var(--error);
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
}

/* ---- Nav ---- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-nav);
  min-height: 2.75rem;
}

.nav-left { display: flex; align-items: center; }

.nav-logo {
  height: 2rem;
  width: auto;
  opacity: 0.85;
  display: block;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  justify-content: center;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: flex-end;
}

.nav-btn {
  padding: 0.3rem 0.9rem;
  min-width: 5.5rem;
  border: 1px solid var(--border-strong);
  background: var(--bg-input);
  color: var(--text);
  text-decoration: none;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  text-align: center;
  line-height: 1.4;
}

.nav-btn:hover { background: var(--bg-hover); }

.nav-btn.active {
  border-color: var(--border-input-focus);
  background: var(--bg-active);
  font-weight: bold;
}

.nav-btn.logout {
  border-color: var(--border);
  color: var(--text-muted);
}

/* ---- Theme toggle ---- */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  margin: 0;
  padding: 0;
}

.theme-toggle input { display: none; }

.toggle-track {
  width: 1.75rem;
  height: 0.875rem;
  border-radius: 0.4375rem;
  background: var(--border-strong);
  position: relative;
  transition: background 0.2s;
}

.toggle-thumb {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--bg);
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  transition: left 0.2s;
}

.theme-icon {
  font-size: 0.9rem;
  line-height: 0;
  vertical-align: middle;
}

.theme-toggle input:checked + .toggle-track { background: var(--text-muted); }
.theme-toggle input:checked + .toggle-track .toggle-thumb { left: 1rem; }

/* ---- Controls ---- */
.controls {
  background: var(--bg);
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.control-group { margin-bottom: 0.375rem; }
.control-group:last-child { margin-bottom: 0; }

.control-inputs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.control-inputs label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-heading);
}

.control-inputs select {
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text);
  outline: none;
  cursor: pointer;
}

.control-inputs select:focus { border-color: var(--border-input-focus); }

.control-inputs input[type="text"] {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text);
  outline: none;
  width: 28rem;
}

.control-inputs input[type="text"]:focus { border-color: var(--border-input-focus); }

.token-label input, .wallet-label input { width: 28rem; }

.search-btn {
  padding: 0.3rem 1.25rem;
  font-size: 0.85rem;
}

/* ---- Tracking bar ---- */
.tracking-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.track-btn {
  min-width: 0;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
}

.track-stop-btn {
  min-width: 0;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  border-color: rgba(220, 80, 80, 0.4);
  color: #c05050;
}

[data-theme="dark"] .track-stop-btn {
  border-color: rgba(255, 100, 100, 0.35);
  color: #e07070;
}

.track-stop-btn:hover {
  background: rgba(220, 80, 80, 0.08);
}

.track-status {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

/* ---- Status ---- */
.status-msg {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 2rem;
}

.status-loading { color: var(--text-muted); }
.status-error { color: var(--error); }

/* ---- Orderbook tables ---- */
.table-wrap {
  padding: 0 1.25rem 1.75rem;
  overflow-x: auto;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.875rem 0 0.45rem;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
}

.buy-title  { color: var(--buy-color); }
.sell-title { color: var(--sell-color); }

.section-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.order-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.order-table thead {
  position: sticky;
  top: 2.75rem;
  z-index: 5;
  background: var(--bg-nav);
}

.order-table th {
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--border-strong);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-heading);
  text-transform: uppercase;
  letter-spacing: 0.04rem;
  white-space: nowrap;
  text-align: center;
}

.order-table td {
  padding: 0.375rem 0.75rem;
  border-bottom: 1px solid var(--border-table);
  white-space: nowrap;
  vertical-align: middle;
  text-align: center;
}

.order-table tr:hover td { background: var(--bg-hover); }

/* column widths */
.th-index      { width: 3rem; }
.th-price      { min-width: 9rem; }
.th-usd        { min-width: 8rem; }
.th-maker      { min-width: 13rem; }
.th-new        { width: 3.5rem; }
.th-cumulative { min-width: 8rem; }
.th-filled     { min-width: 5.5rem; }

/* cell styles — all centered by default via td */
.cell-index    { color: var(--text-dimmed); font-size: 0.8rem; }
.cell-price    { font-family: monospace; }
.cell-usd      { }
.cell-maker    { font-family: monospace; }
.cell-new      { }
.cell-cumulative { font-family: monospace; color: var(--text-muted); }
.cell-filled   { color: var(--text-muted); }

.buy-row  .cell-price { color: var(--buy-color); }
.sell-row .cell-price { color: var(--sell-color); }

.maker-short {
  cursor: default;
  user-select: none;
}

.copy-btn {
  border: none;
  background: none;
  color: var(--text-dimmed);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0 0.15rem;
  margin-left: 0.25rem;
  vertical-align: middle;
  line-height: 1;
  transition: color 0.15s;
}

.copy-btn:hover { color: var(--text); }

.new-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05rem;
  padding: 0.075rem 0.3rem;
  background: var(--new-bg);
  color: var(--new-text);
  border: 1px solid var(--new-border);
  border-radius: 2px;
}

.empty-cell {
  text-align: center;
  color: var(--text-dimmed);
  padding: 1.75rem !important;
  font-size: 0.85rem;
}

/* ---- User Orders ---- */
#results {
  padding: 0 1.25rem 2rem;
}

.network-block {
  margin-top: 1.375rem;
  border: 1px solid var(--border);
}

.network-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.6rem 0.875rem;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
}

.network-name {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  color: var(--text-heading);
}

.network-meta  { font-size: 0.8rem; color: var(--text-muted); }
.network-error { font-size: 0.8rem; color: var(--error); }

.network-block .table-wrap {
  padding: 0;
  overflow-x: auto;
}

.user-order-table { width: 100%; }

.user-order-table thead {
  position: static;
}

.user-order-table th {
  background: var(--bg-nav);
}

/* user-orders cells — centered via td default */
.cell-symbol  { font-weight: 600; color: var(--text); }
.cell-address { font-family: monospace; font-size: 0.8rem; }
.cell-action  { color: var(--text-muted); font-size: 0.8rem; }
.cell-count   { color: var(--text-muted); }
.cell-exp     { font-family: monospace; font-size: 0.8rem; color: var(--text-dimmed); }

.nda-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(100vh - 2.75rem);
  font-size: 12rem;
  font-weight: 700;
  letter-spacing: 0.2rem;
  color: var(--text-dimmed);
  user-select: none;
}

.empty-msg {
  padding: 2.5rem 1.25rem;
  text-align: center;
  color: var(--text-dimmed);
  font-size: 0.85rem;
}

/* ---- Order Placer ---- */
.op-wallet-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.op-wallet-label {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex: 1;
}

.op-num-input {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text);
  outline: none;
  width: 10rem;
}
.op-num-input:focus { border-color: var(--border-input-focus); }

.op-exp-num {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text);
  outline: none;
  width: 4.5rem;
}
.op-exp-num:focus { border-color: var(--border-input-focus); }

.op-form-label {
  font-size: 0.85rem;
  color: var(--text-heading);
}

.op-svc-label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-heading);
  cursor: pointer;
}

.op-services-row {
  gap: 1.25rem;
}

/* prepare results */
.op-prepare-summary {
  font-size: 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-table);
}

.op-block-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08rem;
  text-transform: uppercase;
  color: var(--text-heading);
  margin-bottom: 0.4rem;
  margin-top: 0.5rem;
}

.op-dim { color: var(--text-dimmed); }

.op-approval-item,
.op-order-item {
  padding: 0.2rem 0;
  font-size: 0.85rem;
  color: var(--text);
}

.op-order-item.op-err { color: var(--error); }

.op-svc-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04rem;
  text-transform: uppercase;
  padding: 0.05rem 0.35rem;
  border: 1px solid var(--border-strong);
  color: var(--text-heading);
  vertical-align: middle;
}

.op-addr-dim {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-dimmed);
  margin-left: 0.5rem;
}

/* steps */
.op-steps-list {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-table);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.op-step {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.op-step-icon {
  font-family: monospace;
  font-size: 0.85rem;
  min-width: 0.9rem;
}

.op-step-done   { color: var(--buy-color); }
.op-step-active { color: var(--text); }
.op-step-error  { color: var(--error); }

.op-step-msg {
  font-family: monospace;
  font-size: 0.78rem;
  color: var(--text-dimmed);
}

/* submit result */
.op-submit-ok,
.op-submit-err {
  font-size: 0.85rem;
  padding: 0.2rem 0;
}
.op-submit-ok  { color: var(--buy-color); }
.op-submit-err { color: var(--error); }

.op-order-id {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* active orders cancel btn */
.op-cancel-btn {
  min-width: 0;
  padding: 0.2rem 0.55rem;
  font-size: 0.78rem;
  border-color: rgba(220, 80, 80, 0.4);
  color: #c05050;
}

[data-theme="dark"] .op-cancel-btn {
  border-color: rgba(255, 100, 100, 0.35);
  color: #e07070;
}

.op-cancel-btn:hover { background: rgba(220, 80, 80, 0.08); }