/**
 * LBC UPI Payments for WooCommerce — Checkout Stylesheet
 * Mobile-first, modern design. Works with any WooCommerce theme.
 */

/* ─────────────────────────────────────────────────────────────────────────────
   Custom Properties (tokens)
───────────────────────────────────────────────────────────────────────────── */
:root {
  --upi-blue:       #0070c0;
  --upi-blue-dark:  #005a9e;
  --upi-blue-light: #e8f3fc;
  --upi-green:      #2e7d32;
  --upi-green-bg:   #e8f5e9;
  --upi-error:      #c62828;
  --upi-error-bg:   #ffebee;
  --upi-text:       #1a1a2e;
  --upi-muted:      #6b7280;
  --upi-border:     #e2e8f0;
  --upi-radius:     14px;
  --upi-shadow:     0 4px 24px rgba(0,112,192,.12);
  --upi-transition: 0.22s ease;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Outer section wrapper
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-payment {
  max-width: 760px;
  margin: 24px auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--upi-text);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Header (logo + title + amount)
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.upi-wc-logo {
  height: 32px;
  width: auto;
  flex-shrink: 0;
}

.upi-wc-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
  flex: 1 1 auto;
  color: var(--upi-blue);
}

.upi-wc-amount {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-left: auto;
}

.upi-wc-amount__label {
  font-size: 0.75rem;
  color: var(--upi-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.upi-wc-amount__value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--upi-blue);
  line-height: 1.1;
}

/* Instructions */
.upi-wc-instructions {
  background: var(--upi-blue-light);
  border-left: 4px solid var(--upi-blue);
  border-radius: 0 var(--upi-radius) var(--upi-radius) 0;
  padding: 12px 16px;
  margin: 0 0 20px;
  font-size: 0.93rem;
  color: var(--upi-text);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Main box (two-column on desktop, stacked on mobile)
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-box {
  display: flex;
  gap: 28px;
  background: #fff;
  border: 1px solid var(--upi-border);
  border-radius: var(--upi-radius);
  box-shadow: var(--upi-shadow);
  padding: 28px;
  flex-wrap: wrap;
}

.upi-wc-box__left {
  flex: 0 0 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.upi-wc-box__right {
  flex: 1 1 280px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ─────────────────────────────────────────────────────────────────────────────
   QR Code
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-qr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.upi-wc-qr-canvas {
  display: block;
  width: 200px;
  height: 200px;
  border: 2px solid var(--upi-border);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.upi-wc-qr-hint {
  font-size: 0.78rem;
  color: var(--upi-muted);
  margin: 0;
  text-align: center;
}

/* ─────────────────────────────────────────────────────────────────────────────
   VPA / UPI ID row
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-vpa-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f8fafc;
  border: 1px solid var(--upi-border);
  border-radius: 8px;
  padding: 8px 12px;
  flex-wrap: wrap;
  width: 100%;
  box-sizing: border-box;
}

.upi-wc-vpa-label {
  font-size: 0.78rem;
  color: var(--upi-muted);
  white-space: nowrap;
}

.upi-wc-vpa-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--upi-blue);
  flex: 1 1 auto;
  word-break: break-all;
}

.upi-wc-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  background: #fff;
  color: var(--upi-blue);
  border: 1px solid var(--upi-blue);
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--upi-transition), color var(--upi-transition);
  white-space: nowrap;
}

.upi-wc-copy-btn:hover,
.upi-wc-copy-btn:focus {
  background: var(--upi-blue);
  color: #fff;
  outline: none;
}

.upi-wc-copy-btn.copied {
  background: var(--upi-green);
  border-color: var(--upi-green);
  color: #fff;
}

/* ─────────────────────────────────────────────────────────────────────────────
   App shortcuts
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-apps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.upi-wc-apps__label {
  font-size: 0.82rem;
  color: var(--upi-muted);
  margin: 0;
  font-weight: 500;
}

.upi-wc-apps__grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.upi-wc-app-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  color: var(--upi-text);
  font-size: 0.72rem;
  font-weight: 600;
  transition: transform var(--upi-transition);
}

.upi-wc-app-btn img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid var(--upi-border);
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
  transition: box-shadow var(--upi-transition), transform var(--upi-transition);
  object-fit: contain;
  background: #fff;
}

.upi-wc-app-btn:hover img,
.upi-wc-app-btn:focus img {
  box-shadow: 0 4px 14px rgba(0,112,192,.25);
  transform: translateY(-2px);
}

/* "Open UPI App" generic button */
.upi-wc-open-app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--upi-blue), var(--upi-blue-dark));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity var(--upi-transition), transform var(--upi-transition);
  align-self: flex-start;
  box-shadow: 0 3px 10px rgba(0,112,192,.3);
}

.upi-wc-open-app-btn:hover,
.upi-wc-open-app-btn:focus {
  opacity: .9;
  transform: translateY(-1px);
  color: #fff;
  text-decoration: none;
}

/* ─────────────────────────────────────────────────────────────────────────────
   UTR form
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-utr-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.upi-wc-utr-divider {
  position: relative;
  text-align: center;
}

.upi-wc-utr-divider::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--upi-border);
}

.upi-wc-utr-divider span {
  position: relative;
  background: #fff;
  padding: 0 10px;
  font-size: 0.78rem;
  color: var(--upi-muted);
  font-weight: 500;
}

.upi-wc-utr-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--upi-text);
}

.upi-wc-utr-input {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.95rem;
  border: 1.5px solid var(--upi-border);
  border-radius: 8px;
  transition: border-color var(--upi-transition), box-shadow var(--upi-transition);
  box-sizing: border-box;
  letter-spacing: 0.04em;
  background: #fff;
  color: var(--upi-text);
}

.upi-wc-utr-input:focus {
  border-color: var(--upi-blue);
  box-shadow: 0 0 0 3px rgba(0,112,192,.15);
  outline: none;
}

.upi-wc-utr-input.is-invalid {
  border-color: var(--upi-error);
  box-shadow: 0 0 0 3px rgba(198,40,40,.12);
}

.upi-wc-utr-help {
  font-size: 0.78rem;
  color: var(--upi-muted);
  margin: 0;
}

/* Confirm button */
.upi-wc-confirm-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 20px;
  background: linear-gradient(135deg, #2e7d32, #1b5e20);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity var(--upi-transition), transform var(--upi-transition);
  box-shadow: 0 4px 14px rgba(46,125,50,.35);
  letter-spacing: 0.02em;
}

.upi-wc-confirm-btn:hover:not(:disabled) {
  opacity: .92;
  transform: translateY(-1px);
}

.upi-wc-confirm-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none;
}

.upi-wc-confirm-btn.is-loading::before {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: upi-spin .7s linear infinite;
  flex-shrink: 0;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Messages / alerts
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-message {
  display: none;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
}

.upi-wc-message.is-success {
  display: block;
  background: var(--upi-green-bg);
  border: 1px solid #a5d6a7;
  color: var(--upi-green);
}

.upi-wc-message.is-error {
  display: block;
  background: var(--upi-error-bg);
  border: 1px solid #ef9a9a;
  color: var(--upi-error);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Thank-you page note
───────────────────────────────────────────────────────────────────────────── */
.upi-wc-thankyou {
  margin: 24px 0;
  padding: 20px;
  background: #f8fafc;
  border: 1px solid var(--upi-border);
  border-radius: var(--upi-radius);
}

.upi-wc-thankyou h2 {
  font-size: 1.1rem;
  color: var(--upi-blue);
  margin-top: 0;
}

.upi-wc-thankyou__note {
  color: var(--upi-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Spinner animation
───────────────────────────────────────────────────────────────────────────── */
@keyframes upi-spin {
  to { transform: rotate(360deg); }
}

/* ─────────────────────────────────────────────────────────────────────────────
   Responsive — stack on narrow screens
───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .upi-wc-box {
    padding: 18px 14px;
  }

  .upi-wc-box__left {
    flex: 0 0 100%;
  }

  .upi-wc-amount {
    align-items: flex-start;
    margin-left: 0;
    flex: 0 0 100%;
  }

  .upi-wc-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .upi-wc-apps__grid {
    justify-content: center;
  }

  .upi-wc-open-app-btn {
    align-self: stretch;
  }
}