/* ============================================
   HD WALLET UI — LOGIN MODAL & KEYS MODAL
   ============================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--ui-bg);
  border: 1px solid var(--ui-border);
  border-radius: var(--radius);
  max-width: 440px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  backdrop-filter: blur(20px);
}

.modal-wide {
  max-width: 600px;
}

.key-warning-header {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: normal;
  margin-left: auto;
  margin-right: 16px;
}

/* Modal Tabs (for Keys/vCard) */
.modal-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--ui-border);
  margin-bottom: 20px;
}

.modal-tab {
  padding: 12px 24px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
}

.modal-tab:hover {
  color: var(--text-primary);
}

.modal-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
}

/* Quick Derive Buttons */
.quick-derive {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.quick-label {
  font-size: 12px;
  color: var(--text-muted);
}

/* HD Section */
.hd-section {
  margin-bottom: 20px;
}

.section-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.hd-controls-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.hd-control-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hd-control-group label {
  font-size: 12px;
  color: var(--text-muted);
}

.hd-num-input {
  width: 100%;
}

.hd-not-initialized {
  padding: 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
}

/* Derived Result */
.derived-result {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--ui-border);
  border-radius: var(--radius);
  padding: 16px;
}

.hd-key-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hd-key-row:last-of-type {
  border-bottom: none;
}

.hd-key-label {
  min-width: 80px;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.hd-key-path code {
  font-size: 12px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 8px;
  border-radius: 4px;
}

.hd-key-value {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.hd-key-value code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hd-address-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  margin-top: 8px;
  border-top: 1px solid var(--ui-border);
}

.hd-address-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.crypto-name {
  font-size: 12px;
  color: var(--text-muted);
}

.hd-address {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.explorer-link {
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.qr-section {
  flex-shrink: 0;
}

.qr-section canvas {
  border-radius: 4px;
  background: #fff;
  padding: 4px;
}

/* Copy/Reveal Buttons */
.copy-btn,
.copy-key-btn,
.reveal-key-btn {
  padding: 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.copy-btn:hover,
.copy-key-btn:hover,
.reveal-key-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

/* Collapsible Section */
.collapsible-section {
  margin-top: 16px;
  border: 1px solid var(--ui-border);
  border-radius: var(--radius);
}

.collapsible-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
}

.collapsible-section summary::-webkit-details-marker {
  display: none;
}

.collapse-icon {
  transition: transform 0.2s;
}

.collapsible-section[open] .collapse-icon {
  transform: rotate(180deg);
}

.collapsible-content {
  padding: 0 16px 16px;
}

/* Key Items */
.key-item {
  margin-bottom: 16px;
}

.key-item:last-child {
  margin-bottom: 0;
}

.key-item label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.key-value-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.key-value {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.key-value.seed-phrase {
  white-space: normal;
  word-break: break-word;
}

.key-value.blurred {
  filter: blur(4px);
  user-select: none;
}

/* Photo Upload */
.photo-upload-section {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.photo-preview {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 2px dashed rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.photo-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-placeholder-icon {
  width: 40px;
  height: 40px;
  color: var(--text-muted);
}

.photo-actions {
  display: flex;
  gap: 8px;
}

/* Identity Form */
.identity-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.form-row .glass-input-group {
  flex: 1;
  min-width: 100px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

/* vCard Actions */
.vcard-actions-row {
  display: flex;
  gap: 8px;
  margin-top: 24px;
}

/* vCard Result View */
#vcard-result-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.qr-container {
  padding: 16px;
  background: #fff;
  border-radius: 12px;
}

.vcard-result-actions {
  display: flex;
  gap: 8px;
}

.vcard-details {
  width: 100%;
}

.vcard-details summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

#vcard-preview {
  background: rgba(0, 0, 0, 0.3);
  padding: 16px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.vcard-back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 600px) {
  .modal-wide {
    max-width: 95vw;
  }

  .hd-controls-row {
    flex-direction: column;
  }

  .hd-key-row {
    flex-wrap: wrap;
  }

  .form-row {
    flex-direction: column;
  }
}

.modal-header {
  padding: 24px 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 24px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 28px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.method-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.method-tab {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--ui-border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.method-tab:hover {
  border-color: var(--ui-border-hover);
  color: var(--text-secondary);
}

.method-tab.active {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.method-content {
  display: none;
}

.method-content.active {
  display: block;
}

.glass-input-group {
  margin-bottom: 16px;
}

.glass-input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--ui-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  transition: all 0.2s;
}

.glass-input::placeholder {
  color: var(--text-muted);
}

.glass-input:focus {
  outline: none;
  border-color: var(--ui-border-hover);
  background: rgba(0, 0, 0, 0.4);
}

.glass-textarea {
  resize: vertical;
  min-height: 80px;
  font-family: var(--font-mono);
  font-size: 14px;
}

.entropy-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}

.entropy-fill {
  height: 100%;
  width: 0;
  border-radius: 2px;
  transition: all 0.3s;
}

.entropy-fill.weak { background: #ef4444; }
.entropy-fill.fair { background: #f59e0b; }
.entropy-fill.good { background: #10b981; }
.entropy-fill.strong { background: #06b6d4; }

.entropy-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
  text-align: right;
}

.seed-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--ui-bg);
  border: 1px solid var(--ui-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.glass-btn:hover:not(:disabled) {
  background: var(--ui-hover);
  border-color: var(--ui-border-hover);
}

.glass-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.glass-btn.primary {
  background: var(--text-primary);
  color: var(--bg);
  border-color: var(--text-primary);
}

.glass-btn.primary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.9);
}

.glass-btn.small {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.glass-btn.full-width {
  width: 100%;
}

.remember-wallet-group {
  margin: 20px 0;
}

.glass-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
}

.glass-checkbox input {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--ui-border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.glass-checkbox input:checked + .checkmark {
  background: var(--text-primary);
  border-color: var(--text-primary);
}

.glass-checkbox input:checked + .checkmark::after {
  content: '✓';
  color: var(--bg);
  font-size: 12px;
  font-weight: bold;
}

.remember-options {
  margin-top: 16px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
}

.remember-method-selector {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.remember-method-btn {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--ui-border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.remember-method-btn.active {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.pin-input-group {
  margin-top: 12px;
}

.pin-input, .pin-input-large {
  text-align: center;
  letter-spacing: 0.5em;
  font-family: var(--font-mono);
}

.pin-input-large {
  font-size: 24px;
  padding: 16px;
}

.passkey-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.passkey-info svg {
  flex-shrink: 0;
}

.stored-wallet-info {
  text-align: center;
  padding: 24px;
}

.stored-wallet-info svg {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.stored-wallet-info p {
  font-size: 16px;
  margin-bottom: 4px;
}

.stored-wallet-date {
  font-size: 13px;
  color: var(--text-muted);
}

.stored-divider {
  text-align: center;
  margin: 16px 0;
  color: var(--text-muted);
  font-size: 13px;
}