:root {
  --bg: #0b0f19;
  --card: #111827;
  --card-light: #1a2332;
  --text: #f3f4f6;
  --text-secondary: #9ca3af;
  --primary: #00d4ff;
  --primary-dim: #0891b2;
  --success: #22c55e;
  --danger: #ef4444;
  --border: #1f2937;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px;
}

.swap-widget {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dim));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #000;
}

.brand-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-sub {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

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

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mode-toggle {
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
}

.tab-bar {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 14px 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  position: relative;
  transition: color 0.2s;
}

.tab-btn.active {
  color: var(--primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.widget-body {
  padding: 20px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.token-input-group {
  margin-bottom: 12px;
}

.token-input-group label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.input-row {
  display: flex;
  gap: 10px;
  background: var(--card-light);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  align-items: center;
}

.input-row input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.3rem;
  outline: none;
  width: 0;
}

.input-row input::placeholder { color: #4b5563; }

.token-select {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
}

.token-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.caret {
  font-size: 0.6rem;
  color: var(--text-secondary);
}

.balance-line {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: right;
  margin-top: 4px;
}

.swap-arrow {
  text-align: center;
  color: var(--primary);
  font-size: 1.4rem;
  margin: 4px 0;
}

.rate-box {
  background: rgba(0, 212, 255, 0.05);
  border-radius: 10px;
  padding: 12px;
  margin: 14px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.rate-box .small {
  margin-top: 4px;
  font-size: 0.75rem;
}

.primary-btn {
  width: 100%;
  padding: 14px;
  margin-top: 14px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--primary-dim), var(--primary));
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

.primary-btn:hover { opacity: 0.9; }
.primary-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.status-msg {
  margin-top: 10px;
  padding: 10px;
  border-radius: 8px;
  font-size: 0.8rem;
  display: none;
}

.status-msg.error { background: rgba(239, 68, 68, 0.1); color: var(--danger); display: block; }
.status-msg.ok { background: rgba(34, 197, 94, 0.1); color: var(--success); display: block; }
.status-msg.info { background: rgba(0, 212, 255, 0.08); color: var(--primary); display: block; }

.sub-tab-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.sub-tab-btn {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text-secondary);
  cursor: pointer;
}

.sub-tab-btn.active {
  background: rgba(0, 212, 255, 0.12);
  color: var(--primary);
  border-color: var(--primary-dim);
}

.sub-panel { display: none; }
.sub-panel.active { display: block; }

.percent-btns {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.percent-btns button {
  flex: 1;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
}

.percent-btns button.active {
  background: rgba(0, 212, 255, 0.12);
  color: var(--primary);
  border-color: var(--primary-dim);
}

input[type="range"] {
  width: 100%;
  margin: 8px 0;
}

.center { text-align: center; }

.query-card, .history-card {
  background: var(--card-light);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.query-result {
  margin-top: 14px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  font-size: 0.85rem;
}

.query-result .row {
  display: flex;
  justify-content: space-between;
  margin: 6px 0;
}

.query-result .label { color: var(--text-secondary); }
.query-result .value { font-weight: 600; }

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.85rem;
}

.small-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.75rem;
}

.history-list {
  max-height: 320px;
  overflow-y: auto;
}

.history-item {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}

.history-item:last-child { border-bottom: none; }

.history-type {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  margin-bottom: 6px;
}

.history-type.swap { background: rgba(0, 212, 255, 0.12); color: var(--primary); }
.history-type.add { background: rgba(34, 197, 94, 0.12); color: var(--success); }
.history-type.remove { background: rgba(239, 68, 68, 0.12); color: var(--danger); }

.history-tokens {
  color: var(--text-secondary);
  margin: 4px 0;
}

.history-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.75rem;
}

.empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 30px 0;
  font-size: 0.85rem;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 420px;
  max-height: 70vh;
  background: var(--card);
  border-top: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { margin: 0; font-size: 1rem; }

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-search {
  margin: 12px 20px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text);
  outline: none;
}

.token-list {
  overflow-y: auto;
  padding: 0 20px 20px;
}

.token-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.token-item:last-child { border-bottom: none; }

.token-item:hover { opacity: 0.8; }

.token-item .token-icon {
  width: 36px;
  height: 36px;
  font-size: 1rem;
}

.token-item .info { flex: 1; }
.token-item .symbol { font-weight: 600; }
.token-item .name { font-size: 0.75rem; color: var(--text-secondary); }
.token-item .address { font-size: 0.7rem; color: var(--text-secondary); font-family: monospace; }

.pair-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.pair-icons { display: flex; }
.pair-icons .token-icon:nth-child(2) { margin-left: -8px; border: 2px solid var(--card); }

/* Simple mode: cleaner, fewer details */
.swap-widget.simple .balance-line,
.swap-widget.simple .rate-box {
  display: none !important;
}

.swap-widget.simple .tab-btn[data-tab="query"],
.swap-widget.simple .tab-btn[data-tab="history"],
.swap-widget.simple .tab-btn[data-tab="apply"] {
  display: none;
}

/* Pro mode extras */
.swap-widget.pro .rate-box,
.swap-widget.pro .balance-line {
  display: block;
}

@media (min-width: 480px) {
  .modal { align-items: center; }
  .modal-content { border-radius: var(--radius); border: 1px solid var(--border); }
}

.settings-body {
  padding: 20px;
}

.settings-body label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 12px 0 6px;
}

.settings-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
}

.settings-input:focus {
  border-color: var(--primary);
}

.settings-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.settings-actions .primary-btn,
.settings-actions .secondary-btn {
  flex: 1;
}

.secondary-btn {
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-light);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s;
}

.secondary-btn:hover {
  background: var(--card-hover);
}

/* Pro-only market sections */
.pro-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.pro-section h4 {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text);
}

.simple .pro-section {
  display: none !important;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stat-box {
  background: var(--card-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.query-result-card {
  background: var(--card-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
  font-size: 0.85rem;
}

.query-result-card .row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.query-result-card .row:last-child {
  margin-bottom: 0;
}

.query-result-card .muted {
  color: var(--text-secondary);
}

.token-icon-img {
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

/* Apply tab */
.apply-card {
  padding: 16px;
}

.apply-card h4 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.apply-fee-box {
  background: var(--card-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin: 12px 0;
  font-size: 0.85rem;
}

.apply-fee-box .row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.apply-fee-box .row:last-child {
  margin-bottom: 0;
}

#applyIcon {
  color: var(--text);
  font-size: 0.85rem;
}