/* ============================================
   USDT Payment Portal — shared styles
   Design intent: staff have zero crypto experience.
   The status color IS the interface — everything else
   stays quiet so the red/yellow/green signal is unmissable.
   ============================================ */

:root {
  --bg: #0f1115;
  --panel: #181b21;
  --panel-border: #262b35;
  --text: #f4f5f7;
  --text-dim: #9aa1ad;
  --accent: #5b8cff;

  --red: #e5484d;
  --red-glow: rgba(229, 72, 77, 0.35);
  --yellow: #f5b94d;
  --yellow-glow: rgba(245, 185, 77, 0.35);
  --green: #3dd68c;
  --green-glow: rgba(61, 214, 140, 0.35);

  --radius: 16px;
  --radius-lg: 24px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 24px 16px 48px;
}

.wrap {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
}

.brand {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 8px;
}

.brand-logo {
  display: block;
  height: 72px;
  margin: 8px auto 8px;
}

@media (max-width: 380px) {
  .brand-logo { height: 58px; }
}

h1 {
  font-size: 22px;
  font-weight: 600;
  text-align: center;
  margin: 0;
}

.subtitle {
  text-align: center;
  color: var(--text-dim);
  font-size: 15px;
  margin: -8px 0 4px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

label {
  display: block;
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

input[type="number"], input[type="text"] {
  width: 100%;
  font-size: 28px;
  font-weight: 600;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: #11141a;
  color: var(--text);
  text-align: center;
  -moz-appearance: textfield;
}
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  font-size: 18px;
  font-weight: 600;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:active {
  transform: scale(0.98);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: white;
  margin-top: 20px;
}

.confirm-banner {
  background: var(--yellow);
  border: 3px solid var(--yellow);
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  text-align: center;
  font-size: 19px;
  font-weight: 800;
  color: #1a1300;
  line-height: 1.45;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  box-shadow: 0 0 0 4px rgba(245, 185, 77, 0.25);
}
.confirm-banner-icon {
  font-size: 28px;
  display: block;
  margin-bottom: 6px;
}

.network-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 8px;
}

.network-btn {
  background: #11141a;
  border: 3px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.08s ease, background 0.15s ease;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.network-btn:active {
  transform: scale(0.98);
}
.network-btn:hover {
  border-color: var(--accent);
  background: #14181f;
}
.network-btn-logo {
  width: 64px;
  height: 64px;
  max-width: 64px;
  max-height: 64px;
  object-fit: contain;
  display: block;
  margin: 0 auto 10px;
}
.network-btn-token {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.network-name {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.network-desc {
  font-size: 14px;
  color: var(--text-dim);
}

@media (max-width: 380px) {
  .confirm-banner { font-size: 16px; }
  .network-btn-logo { width: 52px; height: 52px; }
  .network-name { font-size: 25px; }
}

/* ---- Network banner — must be unmissable, distinct from status colors ---- */

.network-banner {
  background: #1a1300;
  border: 3px solid var(--yellow);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  text-align: center;
  box-shadow: 0 0 0 4px rgba(245, 185, 77, 0.15);
}

.network-banner-token {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.network-banner-net-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.network-banner-logo {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.network-banner-net {
  font-size: 26px;
  font-weight: 800;
  color: var(--yellow);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.network-banner-warn {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #ffd98a;
}

@media (max-width: 380px) {
  .network-banner-net { font-size: 19px; }
  .network-banner-logo { width: 24px; height: 24px; }
}

/* ---- Status screen ---- */

.status-card {
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  transition: background 0.4s ease, box-shadow 0.4s ease;
  border: 2px solid transparent;
}

.status-card.pending {
  background: linear-gradient(180deg, rgba(229,72,77,0.12), rgba(229,72,77,0.04));
  border-color: var(--red);
  box-shadow: 0 0 40px var(--red-glow);
}
.status-card.underpaid {
  background: linear-gradient(180deg, rgba(245,185,77,0.14), rgba(245,185,77,0.05));
  border-color: var(--yellow);
  box-shadow: 0 0 40px var(--yellow-glow);
}
.status-card.confirmed {
  background: linear-gradient(180deg, rgba(61,214,140,0.16), rgba(61,214,140,0.05));
  border-color: var(--green);
  box-shadow: 0 0 50px var(--green-glow);
}
.status-card.expired {
  background: linear-gradient(180deg, rgba(154,161,173,0.12), rgba(154,161,173,0.04));
  border-color: var(--text-dim);
}

.status-dot {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
}
.status-dot.pending {
  background: var(--red);
  animation: pulse 1.6s infinite ease-in-out;
}
.status-dot.underpaid {
  background: var(--yellow);
}
.status-dot.confirmed {
  background: var(--green);
}
.status-dot.expired {
  background: var(--panel-border);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--red-glow); }
  50% { box-shadow: 0 0 0 18px transparent; }
}

.status-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 6px;
}
.status-subtitle {
  font-size: 15px;
  color: var(--text-dim);
  margin: 0;
}

.amount-display {
  text-align: center;
  margin: 4px 0 8px;
}
.amount-display .usdt {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.amount-display .thb {
  font-size: 15px;
  color: var(--text-dim);
  margin-top: 4px;
}

.qr-wrap {
  display: flex;
  justify-content: center;
  margin: 20px 0;
}
.qr-wrap img, .qr-wrap canvas {
  background: white;
  padding: 12px;
  border-radius: 12px;
}

.address-box {
  background: #11141a;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  word-break: break-all;
  color: var(--text-dim);
  text-align: center;
  margin-bottom: 4px;
}

.copy-hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
}

.timer {
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 16px;
}

.underpaid-detail {
  background: #11141a;
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.7;
}
.underpaid-detail .row {
  display: flex;
  justify-content: space-between;
}
.underpaid-detail .label {
  color: var(--text-dim);
}
.underpaid-detail .shortfall {
  color: var(--yellow);
  font-weight: 700;
}

.btn-override {
  background: var(--yellow);
  color: #1a1300;
  margin-top: 16px;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  margin-top: 12px;
}

.success-note {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 18px;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 8px;
  vertical-align: -2px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.back-link {
  text-align: center;
  margin-top: 8px;
}
.back-link a {
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
}
.back-link a:hover {
  color: var(--text);
}

@media (max-width: 380px) {
  .amount-display .usdt { font-size: 36px; }
  .status-title { font-size: 22px; }
}