/* ===== VaultChat — Premium Dark Theme ===== */

:root {
  --bg-primary: #06060b;
  --bg-secondary: #0c0c14;
  --bg-tertiary: #111120;
  --bg-card: #13132a;
  --bg-input: #0e0e1c;
  --border: #1a1a35;
  --border-hover: #2a2a55;
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #555577;
  --accent: #00d4ff;
  --accent-glow: rgba(0, 212, 255, 0.15);
  --accent-dim: #0099bb;
  --success: #00e676;
  --warning: #ffab00;
  --danger: #ff4466;
  --vault-accent: #ff6b35;
  --vault-glow: rgba(255, 107, 53, 0.15);
  --vault-border: #3a1a0a;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

.screen { display: none; height: 100%; width: 100%; }
.screen.active { display: flex; }
.hidden { display: none !important; }

/* ===== LOGIN SCREEN ===== */
.login-container {
  width: 100%;
  max-width: 420px;
  margin: auto;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.login-logo {
  text-align: center;
  animation: fadeInUp 0.6s ease;
}

.logo-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  color: var(--accent);
  filter: drop-shadow(0 0 20px var(--accent-glow));
  animation: pulse-glow 3s infinite;
}

@keyframes pulse-glow {
  0%, 100% { filter: drop-shadow(0 0 20px var(--accent-glow)); }
  50% { filter: drop-shadow(0 0 35px rgba(0, 212, 255, 0.3)); }
}

.login-logo h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

#login-form-area { width: 100%; }

.login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: fadeInUp 0.4s ease;
}

.setup-notice {
  text-align: center;
  color: var(--accent);
  font-size: 14px;
  padding: 12px;
  background: var(--accent-glow);
  border-radius: var(--radius);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.input-group {
  position: relative;
}

.input-group input,
.input-group textarea,
.input-group select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

.input-group textarea {
  resize: vertical;
  min-height: 60px;
}

.input-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238888aa' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
  color: var(--text-muted);
}

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent), #0099cc);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  width: 100%;
  padding: 12px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--bg-card);
}

.error-msg {
  color: var(--danger);
  font-size: 13px;
  text-align: center;
  padding: 8px;
  background: rgba(255, 68, 102, 0.1);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 68, 102, 0.2);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.attempts-info {
  color: var(--warning);
  font-size: 13px;
  text-align: center;
}

/* Locked state */
.locked-notice {
  text-align: center;
  padding: 20px;
}

.locked-notice svg { color: var(--danger); margin-bottom: 12px; }
.locked-notice h3 { color: var(--danger); margin-bottom: 4px; }
.locked-notice p { color: var(--text-secondary); font-size: 14px; }

.unlock-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-input);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 12px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--accent);
}

.tab-content { display: none; }
.tab-content.active { display: flex; flex-direction: column; gap: 12px; }

/* Recovery key display */
.recovery-notice {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.recovery-notice h3 { color: var(--warning); }
.recovery-notice p { color: var(--text-secondary); font-size: 14px; line-height: 1.5; }

.recovery-key-box {
  font-family: var(--mono);
  font-size: 13px;
  padding: 16px;
  background: var(--bg-input);
  border: 2px dashed var(--warning);
  border-radius: var(--radius);
  word-break: break-all;
  color: var(--warning);
  user-select: all;
  line-height: 1.6;
}

/* ===== CHAT SCREEN ===== */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-small { color: var(--accent); }

.header-info h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.mode-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.mode-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.session-timer {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 10px;
  background: var(--bg-tertiary);
  border-radius: 20px;
  border: 1px solid var(--border);
}

.session-timer.warning { color: var(--warning); border-color: var(--warning); }
.session-timer.danger { color: var(--danger); border-color: var(--danger); animation: pulse 1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

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

/* Chat body */
.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  scroll-behavior: smooth;
}

.chat-messages {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Messages */
.message {
  display: flex;
  gap: 12px;
  animation: fadeInUp 0.3s ease;
  max-width: 90%;
}

.message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.message.bot .message-avatar {
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
}

.message.user .message-avatar {
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.message-content {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.6;
  position: relative;
}

.message.bot .message-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top-left-radius: 4px;
}

.message.user .message-content {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(139, 92, 246, 0.12));
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-top-right-radius: 4px;
}

.message.system .message-content {
  background: var(--accent-glow);
  border: 1px solid rgba(0, 212, 255, 0.2);
  text-align: center;
  max-width: 100%;
  width: 100%;
  border-radius: var(--radius);
}

.message.system {
  max-width: 100%;
  justify-content: center;
}

.message-content strong { color: var(--accent); }
.message-content em { color: var(--text-secondary); font-style: italic; }

/* Vault mode styling */
body.vault-mode .chat-header {
  border-bottom-color: var(--vault-border);
}

body.vault-mode .mode-dot {
  background: var(--vault-accent);
}

body.vault-mode .mode-indicator {
  color: var(--vault-accent);
}

body.vault-mode .message.system .message-content {
  background: var(--vault-glow);
  border-color: rgba(255, 107, 53, 0.3);
}

body.vault-mode .chat-input-area {
  border-top-color: var(--vault-border);
}

body.vault-mode .btn-send {
  background: linear-gradient(135deg, var(--vault-accent), #cc5522);
}

/* Search results */
.result-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-top: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.result-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.result-card .result-type {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.result-card .result-type.password { color: var(--accent); }
.result-card .result-type.note { color: var(--success); }
.result-card .result-type.file { color: var(--warning); }

.result-card .result-title {
  font-weight: 600;
  font-size: 14px;
}

.result-card .result-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.result-card .ocr-snippet {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
  padding: 6px 8px;
  background: var(--bg-input);
  border-radius: 6px;
  font-family: var(--mono);
}

/* Password display */
.password-reveal {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--bg-input);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.password-reveal .pw-value {
  flex: 1;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 1px;
}

.password-reveal .pw-value.masked { color: var(--text-muted); }

.pw-btn {
  padding: 4px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}

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

/* List items */
.list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.list-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.list-item .item-index {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.list-item .item-info {
  flex: 1;
  min-width: 0;
}

.list-item .item-name {
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-item .item-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.list-item .item-badge {
  padding: 2px 8px;
  font-size: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Chat input */
.chat-input-area {
  padding: 12px 20px 20px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.input-container {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  transition: var(--transition);
}

.input-container:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-container .btn-icon {
  border: none;
  width: 40px;
  height: 40px;
}

#chat-input {
  flex: 1;
  padding: 10px 4px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
}

#chat-input::placeholder { color: var(--text-muted); }

.btn-send {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #0099cc);
  border: none;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.btn-send:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 12px rgba(0, 212, 255, 0.3);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

.modal {
  width: 90%;
  max-width: 440px;
  max-height: 85vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: slideUp 0.3s ease;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 16px; font-weight: 600; }

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

.modal form {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.password-input-group {
  display: flex;
  gap: 8px;
}

.password-input-group input { flex: 1; }

.btn-generate {
  width: 44px;
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}

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

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

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

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.drop-zone svg { color: var(--text-muted); margin-bottom: 8px; }
.drop-zone p { font-size: 14px; }
.browse-link { color: var(--accent); text-decoration: underline; }
.drop-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.selected-file {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-size: 13px;
}

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Loading */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 0;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* Note content display */
.note-content {
  margin-top: 8px;
  padding: 12px;
  background: var(--bg-input);
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  max-height: 300px;
  overflow-y: auto;
}

/* Delete button */
.btn-danger {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--danger);
  border-radius: 6px;
  color: var(--danger);
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Responsive */
@media (max-width: 600px) {
  .login-container { padding: 24px 16px; }
  .chat-body { padding: 12px; }
  .chat-input-area { padding: 8px 12px 12px; }
  .message { max-width: 95%; }
  .modal { width: 95%; }
  .header-info h2 { font-size: 14px; }
}