/* ═══ Merchant Example — Dark Gaming Wallet Theme ═══ */
:root {
  --bg: #0b1117;
  --surface: #131c26;
  --surface2: #1a2530;
  --border: #2a3542;
  --text: #e7edf6;
  --text-dim: #8a99ab;
  --primary: #2563eb;
  --primary-dim: #1d4ed8;
  --purple: #7c3aed;
  --green: #16a34a;
  --green-bg: #052e16;
  --red: #dc2626;
  --red-bg: #2a0a0a;
  --yellow: #d97706;
  --yellow-bg: #2a1f05;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, 'Segoe UI', Roboto, 'Noto Sans Thai', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ═══ Login ═══ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 32px;
  width: 360px;
  text-align: center;
}
.login-card h1 { font-size: 28px; margin-bottom: 8px; }
.login-card .sub { color: var(--text-dim); font-size: 13px; margin-bottom: 24px; }
.login-card input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
  margin-bottom: 12px;
}
.login-card input:focus { outline: none; border-color: var(--primary); }
.login-card .hint { font-size: 11px; color: var(--text-dim); margin-top: 12px; }

/* ═══ Buttons ═══ */
.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.btn-primary:hover:not(:disabled) { background: var(--primary-dim); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary.purple { background: var(--purple); }
.btn-primary.purple:hover { background: #6d28d9; }
.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--text-dim); color: var(--text); }
.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid #5a1a1a;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.btn-success {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid #1a4a2a;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.btn-block { width: 100%; }

/* ═══ Header ═══ */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 24px; }
.app-name { font-weight: 700; font-size: 18px; }
.header-right { display: flex; align-items: center; gap: 12px; }
.welcome { color: var(--text-dim); font-size: 13px; }

/* ═══ Wallet Bar ═══ */
.wallet-bar {
  display: flex;
  gap: 12px;
  padding: 16px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.wallet-item {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  text-align: center;
}
.wallet-label { display: block; font-size: 12px; color: var(--text-dim); }
.wallet-value { display: block; font-size: 22px; font-weight: 700; margin-top: 4px; }
.wallet-value.held { color: var(--yellow); }
.wallet-value.available { color: var(--green); }

/* ═══ Tabs ═══ */
.tabs {
  display: flex;
  gap: 4px;
  padding: 12px 20px 0;
  border-bottom: 1px solid var(--border);
}
.tab {
  background: transparent;
  color: var(--text-dim);
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; padding: 20px; max-width: 800px; margin: 0 auto; }
.tab-content.active { display: block; }

/* ═══ Cards ═══ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card h3 { font-size: 16px; margin-bottom: 16px; }

/* ═══ Forms ═══ */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 4px; }
.form-group input, .form-group select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.form-subtitle { font-size: 12px; color: var(--text-dim); margin: 12px 0; padding-top: 12px; border-top: 1px solid var(--border); }
.hint { font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.confirm-box {
  background: var(--yellow-bg);
  border: 1px solid #4a3510;
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  margin: 12px 0;
}
.confirm-box input { margin-right: 8px; }
hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }

/* ═══ Board ═══ */
.board {
  background: var(--yellow-bg);
  border: 1px solid #4a3510;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 16px;
}
.board-title { font-weight: 600; font-size: 14px; color: var(--yellow); margin-bottom: 10px; }
.board-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.board-chip {
  background: var(--surface);
  border: 1px solid var(--yellow);
  color: var(--text);
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s;
}
.board-chip:hover { background: var(--yellow); color: var(--bg); }
.board-chip.selected { background: var(--yellow); color: var(--bg); }

/* ═══ Status Tags ═══ */
.tag { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 500; }
.tag-green { background: var(--green-bg); color: var(--green); }
.tag-red { background: var(--red-bg); color: var(--red); }
.tag-yellow { background: var(--yellow-bg); color: var(--yellow); }
.tag-blue { background: #0c2038; color: #60a5fa; }
.tag-gray { background: var(--surface2); color: var(--text-dim); }

/* ═══ Pending Deposit Box ═══ */
.pending-box {
  background: var(--surface2);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

/* ═══ Result Box ═══ */
.result-box {
  background: var(--green-bg);
  border: 1px solid var(--green);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.result-box.warn { background: var(--yellow-bg); border-color: var(--yellow); }
.result-box.error { background: var(--red-bg); border-color: var(--red); }
.result-box h4 { font-size: 15px; margin-bottom: 8px; }
.result-link {
  display: block;
  color: #60a5fa;
  text-decoration: none;
  font-size: 13px;
  word-break: break-all;
  margin: 8px 0;
}
.result-link:hover { text-decoration: underline; }
.result-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* ═══ History Table ═══ */
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.history-table th {
  text-align: left;
  padding: 8px 12px;
  background: var(--surface2);
  color: var(--text-dim);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.history-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.history-table .empty { text-align: center; color: var(--text-dim); padding: 24px; }

/* ═══ Callbacks ═══ */
.callback-list { max-height: 500px; overflow-y: auto; }
.callback-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 13px;
}
.callback-item .cb-type { font-weight: 600; color: #60a5fa; }
.callback-item .cb-meta { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.callback-item .cb-time { float: right; font-size: 11px; color: var(--text-dim); }

/* ═══ Toast ═══ */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 100;
  animation: toast-in .3s ease;
}
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error { border-color: var(--red); color: var(--red); }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ═══ Footer ═══ */
.footer { text-align: center; padding: 24px 20px; color: var(--text-dim); font-size: 12px; }
.footer a { color: var(--text-dim); }

/* ═══ Slip Upload ═══ */
.slip-upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  color: var(--text-dim);
  margin-top: 12px;
  transition: border-color .15s;
}
.slip-upload:hover { border-color: var(--primary); }

/* ═══ Responsive ═══ */
@media (max-width: 600px) {
  .wallet-bar { flex-direction: column; }
  .form-row { flex-direction: column; gap: 0; }
  .tabs { overflow-x: auto; padding: 8px 12px 0; }
  .tab { white-space: nowrap; padding: 8px 12px; font-size: 13px; }
}