/* Fuel ByTek with Milk - Support Modal & Responsive Payment Styles */

.btn-support-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text);
  font-family: var(--font-primary);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-support-trigger:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Post-download secondary prompt */
.post-download-support {
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  animation: cardIn 0.35s ease both;
}

.support-prompt-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.support-prompt-text strong {
  color: var(--text);
  font-family: var(--font-primary);
}

/* Support Modal Content */
.support-modal-header {
  text-align: center;
  margin-bottom: 20px;
}

.support-badge-icon {
  font-size: 36px;
  display: block;
  margin-bottom: 6px;
  line-height: 1;
}

.support-modal-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.support-modal-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 440px;
  margin: 0 auto;
}

/* Amount Presets */
.amount-presets-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 10px;
}

.amount-presets-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.preset-btn {
  padding: 10px 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.preset-btn.active {
  background: rgba(255, 157, 0, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 14px var(--accent-glow);
}

/* Custom Input Wrap */
.custom-amount-wrap {
  display: none;
  margin-bottom: 20px;
  animation: cardIn 0.25s ease both;
}

.custom-amount-wrap.visible {
  display: block;
}

.custom-input-box {
  position: relative;
  display: flex;
  align-items: center;
}

.currency-prefix {
  position: absolute;
  left: 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  pointer-events: none;
}

.custom-amount-input {
  width: 100%;
  padding: 12px 14px 12px 34px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  outline: none;
  transition: border-color 0.2s;
}

.custom-amount-input:focus {
  border-color: var(--accent);
}

.custom-amount-input.invalid {
  border-color: var(--danger);
}

.validation-msg {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--danger);
  margin-top: 6px;
  display: none;
}

.validation-msg.visible {
  display: block;
}

/* Mobile vs Desktop Payment Visibility Rules (<1024px vs >=1024px) */
@media (max-width: 1023px) {
  .upi-mobile-section {
    display: block;
    margin-bottom: 16px;
  }

  .btn-upi-pay {
    width: 100%;
    padding: 16px 20px;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 12px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s ease;
    text-decoration: none;
  }

  .btn-upi-pay:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
  }

  .toggle-qr-link {
    display: block;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--muted);
    background: none;
    border: none;
    cursor: pointer;
    margin: 12px auto 0;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
  }

  .toggle-qr-link:hover {
    color: var(--accent);
  }

  .qr-section.mobile-hidden {
    display: none;
  }
}

@media (min-width: 1024px) {
  /* On Desktop, hide mobile deep-link CTA & toggle link */
  .upi-mobile-section {
    display: none !important;
  }

  .qr-section {
    display: block !important;
  }
}

/* QR & Desktop Card Container */
.qr-section {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
  transition: all 0.3s ease;
}

.qr-title-label {
  font-family: var(--font-primary);
  font-size: 16px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
}

.qr-box-wrap {
  display: inline-block;
  padding: 12px;
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  margin-bottom: 12px;
  max-width: 100%;
}

#qrCanvasContainer {
  width: 180px;
  height: 180px;
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

#qrCanvasContainer canvas {
  width: 100% !important;
  max-width: 180px !important;
  height: auto !important;
  display: block;
}

.qr-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}

/* UPI ID Fallback Copy */
.upi-id-copy-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  max-width: 100%;
}

.upi-id-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  word-break: break-all;
}

.btn-copy-upi {
  padding: 4px 10px;
  background: var(--border);
  border: none;
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-primary);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.btn-copy-upi:hover {
  background: var(--accent);
  color: #000;
}

.copy-feedback {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--success);
  margin-top: 6px;
  height: 16px;
  opacity: 0;
  transition: opacity 0.2s;
}

.copy-feedback.visible {
  opacity: 1;
}

.support-footer-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin-top: 14px;
}

/* Mobile Modal Viewport Overflow Prevention (320px - 480px) */
@media (max-width: 480px) {
  .amount-presets-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .preset-btn {
    padding: 10px 4px;
    font-size: 13px;
  }

  .support-modal-title {
    font-size: 20px;
  }

  .qr-section {
    padding: 16px 10px;
  }

  #qrCanvasContainer {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 360px) {
  .amount-presets-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .upi-id-copy-box {
    flex-direction: column;
    gap: 6px;
  }
}