/* Quantum Vault - High Assurance Theme matching UX-STYLE.md */

:root {
  /* UX-STYLE.md required tokens */
  --bg-app: #0f172a;
  --bg-panel: #1e293b;
  --bg-sidebar: #0b1120;
  --bg-input: #334155;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-inv: #e2e8f0;

  --accent-primary: #3b82f6;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-disabled: #475569;
  
  --border-subtle: #334155;
  --border-focus: #3b82f6;

  /* Typography */
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, "Liberation Mono", Menlo, monospace;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-ui);
  line-height: 1.5;
  min-height: 100vh;
}

/* Layout Shell */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-sidebar);
  color: var(--text-inv);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--border-subtle);
}

.main-content {
  overflow-y: auto;
  padding: 2rem;
  background: var(--bg-app);
  position: relative;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.nav-item {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.24);
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  text-align: left;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border-color: rgba(148, 163, 184, 0.45);
}

.nav-item:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.nav-item.active {
  background: rgba(59, 130, 246, 0.22);
  color: #93c5fd;
  border-color: rgba(59, 130, 246, 0.65);
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.22);
}

.nav-item .icon {
  width: 1.1rem;
  text-align: center;
}

/* Header */
.header-group {
  margin-bottom: 1.5rem;
}
h1 { margin: 0 0 0.25rem 0; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
h2 { margin: 0 0 0.5rem 0; font-size: 1.1rem; font-weight: 600; }
h3 { margin: 0 0 0.75rem 0; font-size: 1rem; font-weight: 600; }
.subtitle { margin: 0; font-size: 0.85rem; color: var(--text-muted); line-height: 1.4; }
.version-badge {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Security Context Sidebar Bottom */
.security-context {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  font-size: 0.8rem;
}

.context-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  gap: 0.75rem;
}

.context-val {
  font-family: var(--font-mono);
  color: white;
  text-align: right;
  word-break: break-all;
}

.context-val.status-success {
  color: var(--accent-success);
}

.context-val.status-warning {
  color: var(--accent-warning);
}

.context-val.status-muted {
  color: var(--text-muted);
}

.status-line { display: inline-flex; align-items: center; }
.status-indicator {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  background: var(--text-muted);
}
.status-indicator.ready { background: var(--text-muted); }
.status-indicator.verify-ready { background: var(--accent-success); box-shadow: 0 0 8px rgba(16, 185, 129, 0.4); }
.status-indicator.armed { background: var(--accent-warning); box-shadow: 0 0 8px rgba(245, 158, 11, 0.4); }

.sidebar-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.sidebar-note a { color: var(--accent-primary); text-decoration: none; }
.sidebar-selftest {
  margin-top: 0.6rem;
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(255, 255, 255, 0.06);
  color: #dbeafe;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  cursor: pointer;
  width: 100%;
  font-family: var(--font-ui);
}
.sidebar-selftest:hover { background: rgba(255, 255, 255, 0.12); }
.sidebar-selftest:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* Panels */
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.3s ease-out; }

.module-panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.module-panel::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: linear-gradient(90deg, #3b82f6, #2563eb);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}
.full-width { grid-column: 1 / -1; }

.card {
  background: var(--bg-app);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.section-header {
  margin-bottom: 1.25rem;
}

/* Forms & Inputs */
.form-group { margin-bottom: 1rem; }
label {
  display: block; font-size: 0.82rem; font-weight: 500;
  color: var(--text-muted); margin-bottom: 0.4rem;
  text-transform: uppercase; letter-spacing: 0.02em;
}
input[type="text"], input[type="number"], input[type="password"], input[type="file"], select, textarea {
  width: 100%; padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui); font-size: 0.95rem;
  background: var(--bg-input); color: var(--text-main);
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--border-focus);
}

.mono-box {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.9rem;
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text-main);
}

.radio-inline {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin: 0; text-transform: none; letter-spacing: normal;
  font-size: 0.9rem; color: var(--text-main);
}
.muted-copy { color: var(--text-muted); font-size: 0.9rem; margin-top: 0; }

/* Buttons */
.button-group { display: flex; gap: 0.75rem; margin-top: 1rem; flex-wrap: wrap; }
button.button {
  padding: 0.6rem 1rem; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.88rem; cursor: pointer;
  border: 1px solid transparent; transition: all 0.15s;
  font-family: var(--font-ui);
}
button.button.primary { background: var(--accent-primary); color: white; }
button.button.primary:hover:not(:disabled) { background: #2563eb; }
button.button.secondary { background: var(--bg-input); border-color: var(--border-subtle); color: var(--text-main); }
button.button.secondary:hover:not(:disabled) { border-color: var(--text-muted); background: #475569; }
button.button.danger { background: var(--bg-input); border-color: var(--accent-danger); color: var(--accent-danger); }
button.button.danger:hover:not(:disabled) { background: rgba(239, 68, 68, 0.1); }
button.button.small { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
button.button:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}
button:disabled { opacity: 0.6; cursor: not-allowed; filter: grayscale(0.4); }

/* Toasts */
.toast-container {
  position: fixed; top: 1rem; right: 1rem; z-index: 100;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.toast {
  padding: 1rem 1.25rem; border-radius: var(--radius-sm);
  background: var(--bg-panel); color: var(--text-main);
  box-shadow: var(--shadow-md); border-left: 4px solid var(--text-muted);
  font-size: 0.92rem; animation: slideIn 0.25s ease;
  max-width: 420px; transition: opacity 0.22s ease, transform 0.22s ease;
}
.toast.fade-out { opacity: 0; transform: translateY(16px); }
.toast.success { border-left-color: var(--accent-success); }
.toast.error { border-left-color: var(--accent-danger); }
.toast.warning { border-left-color: var(--accent-warning); }
.toast.info { border-left-color: var(--accent-primary); }

@media (prefers-reduced-motion: reduce) {
  .toast {
    animation: none;
    transition: none;
  }
}

@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Vault Specific Components */
.dropzone-area {
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-xl, 2rem);
  text-align: center;
  transition: border-color 0.2s;
  position: relative;
  background: var(--bg-input);
}
.dropzone-area:hover { border-color: var(--text-muted); }
.dropzone-area input[type="file"] {
  position: absolute; width: 100%; height: 100%; top: 0; left: 0;
  opacity: 0; cursor: pointer;
}

.visual-pipeline-container {
  display: flex; justify-content: center; align-items: center;
  gap: 1rem; margin-bottom: 1.5rem; opacity: 0.8;
}
.pipeline-step { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; font-size: 0.8rem; color: var(--text-muted); }
.pipeline-step.active { color: var(--accent-success); font-weight: bold; transform: scale(1.1); transition: transform 0.3s; }
.pipeline-step .icon { font-size: 1.5rem; background: var(--bg-app); width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); border: 1px solid var(--border-subtle); }
.pipeline-step.active .icon { border-color: var(--accent-success); box-shadow: 0 0 10px rgba(16, 185, 129, 0.2); }
.pipeline-arrow { color: var(--border-subtle); font-weight: bold; }

/* Status Badges */
.status-badge {
  display: inline-flex; align-items: center; gap: 0.25rem;
  background: var(--bg-input); padding: 4px 10px;
  border-radius: var(--radius-sm); font-size: 0.875rem;
}
.shards-status {
  padding: 0.5rem 1rem; background: var(--bg-input);
  border-radius: var(--radius-sm); text-align: center;
  font-family: var(--font-mono); font-size: 0.9rem; margin-bottom: 1rem;
}
.shards-status.sufficient { background: rgba(16, 185, 129, 0.15); color: var(--accent-success); border: 1px solid var(--accent-success); }
.shards-status.insufficient { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); border: 1px solid var(--accent-warning); }
.shards-status.unknown { background: rgba(59, 130, 246, 0.15); color: var(--accent-primary); border: 1px solid var(--accent-primary); }
.shards-status.invalid { background: rgba(239, 68, 68, 0.15); color: var(--accent-danger); border: 1px solid var(--accent-danger); }

/* Switch for Lite/Pro */
.mode-switch-container { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; font-weight: 500; }
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--bg-app); transition: .4s;
  border-radius: var(--radius-sm); border: 1px solid var(--border-subtle);
}
.slider:before {
  position: absolute; content: ""; height: 18px; width: 18px;
  left: 2px; bottom: 2px; background-color: var(--text-muted);
  transition: .4s; border-radius: var(--radius-sm);
}
input:checked + .slider { background-color: var(--accent-primary); border-color: var(--accent-primary); }
input:checked + .slider:before { transform: translateX(20px); background-color: white; }

.app-footer {
  padding: 1rem 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
}

/* Logs */
.log-container { background: #000; border-radius: var(--radius-sm); flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.log-header { display: flex; align-items: center; justify-content: space-between; padding: 0.5rem; background: #111; }
.log-container h3 { font-size: 0.75rem; color: var(--text-muted); margin: 0; text-transform: uppercase; }
.log-container.collapsed #log { display: none; }
.log-box, #log { flex: 1; overflow-y: auto; padding: 0.5rem; font-family: var(--font-mono); font-size: 0.75rem; margin: 0; color: var(--text-muted); white-space: pre-wrap; max-height: 200px;}
#log .log-info { color: var(--text-muted); }
#log .success { color: var(--accent-success); }
#log .error { color: var(--accent-danger); }
#log .warning { color: var(--accent-warning); }

.info-text { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; display: block; }
.info-text.warning { color: var(--accent-warning); font-weight: 600; }
.info-text.error { color: var(--accent-danger); font-weight: 600; }
.initially-hidden { display: none; }
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }

/* Progress */
.progress-bar-bg { height: 8px; background: var(--bg-input); border-radius: var(--radius-sm); overflow: hidden; margin-top: 0.5rem; }
.progress-bar-fill { height: 100%; width: 0; background: var(--accent-success); transition: width 0.3s; }

/* Utilities */
.info { display: inline-flex; align-items: center; justify-content: center; width: 1rem; height: 1rem; border-radius: 50%; border: 1px solid var(--text-muted); color: var(--text-muted); font-size: 0.7rem; margin-left: 4px; cursor: help; }

/* RS Viz Styles */
.rs-viz-bar { margin: 1rem 0; }
.rs-bar { height: 24px; background: var(--bg-input); border-radius: var(--radius-sm); position: relative; overflow: hidden; display: flex; }
.rs-seg { height: 100%; display: flex; align-items: center; justify-content: center; font-size: 10px; color: rgba(255,255,255,0.8); transition: width 0.3s; }
.rs-seg.data { background: var(--accent-success); }
.rs-seg.parity { background: var(--accent-primary); }
.rs-marker { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--accent-warning); z-index: 10; transition: left 0.3s; }
.rs-legend { display: flex; gap: 1em; font-size: 0.75rem; margin-top: 5px; color: var(--text-muted); }
.swatch { width: 10px; height: 10px; display: inline-block; margin-right: 4px; border-radius: 2px; }
.swatch.data { background: var(--accent-success); }
.swatch.parity { background: var(--accent-primary); }
.swatch.marker { background: var(--accent-warning); }

.rs-marker-label { position: absolute; top: -15px; font-size: 0.7rem; color: var(--accent-warning); white-space: nowrap; transform: translateX(-50%); pointer-events: none; }
.rs-bar.rs-error { outline: 2px solid rgba(239, 68, 68, 0.7); }
.rs-info-box { margin-top: 0.75rem; }
.rs-summary { color: var(--text-main); }
.rs-constraints { margin-top: 0.6rem; display: grid; gap: 0.35rem; }
.constraint-item { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); }
.constraint-item::before { content: "○ "; }
.constraint-item.ok { color: var(--accent-success); }
.constraint-item.ok::before { content: "✓ "; }
.constraint-item.fail { color: var(--accent-danger); }
.constraint-item.fail::before { content: "✗ "; }

.restore-result-panel { margin-top: 1rem; padding: 1rem; border-radius: var(--radius-sm); font-family: var(--font-mono); font-size: 0.85rem; }
.restore-result-panel h4 { margin: 0 0 0.5rem; font-size: 0.95rem; font-family: var(--font-ui); }
.restore-result-panel.ok { background: rgba(16, 185, 129, 0.1); border: 1px solid var(--accent-success); }
.restore-result-panel.ok h4 { color: var(--accent-success); }
.restore-result-panel.fail { background: rgba(239, 68, 68, 0.1); border: 1px solid var(--accent-danger); }
.restore-result-panel.fail h4 { color: var(--accent-danger); }

.restore-result-item { padding: 2px 0; }
.restore-result-item.ok { color: var(--accent-success); }
.restore-result-item.fail { color: var(--accent-danger); }
.restore-result-item.warn { color: var(--accent-warning); }

/* Missing UI blocks used by current markup */
.mode-section {
  width: 100%;
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.files-list {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  text-align: left;
  font-size: 0.85rem;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
}

.file-name {
  color: var(--text-main);
  overflow-wrap: anywhere;
}

.file-size {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.key-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.config-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.threshold-display {
  padding: var(--space-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.threshold-delta {
  display: inline-flex;
  width: fit-content;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.threshold-delta:empty {
  display: none;
}

.threshold-delta.warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
  border-color: var(--accent-warning);
}

.threshold-delta.success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-success);
  border-color: var(--accent-success);
}

.operation-warning {
  padding: var(--space-sm);
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  margin: var(--space-sm) 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.operation-warning.warning {
  border: 1px solid var(--accent-warning);
  color: var(--accent-warning);
}

.operation-warning.success {
  border: 1px solid var(--accent-success);
  color: var(--accent-success);
}

.strategy-group {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  margin: var(--space-sm) 0;
}

.strategy-title {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.strategy-option {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  color: var(--text-main);
}

.strategy-option:last-child {
  margin-bottom: 0;
}

.strategy-option input[type="radio"],
.strategy-option input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.verification-section {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
}

.verification-section summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.verification-fields {
  margin-top: var(--space-sm);
}

.verification-fields label {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  color: var(--text-main);
  text-transform: none;
  letter-spacing: normal;
}

.verification-section input[type="text"] {
  background: var(--bg-app);
  border-color: #475569;
}

.rs-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.rs-controls label {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.rs-info-box {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  margin-top: var(--space-sm);
}

.rs-summary {
  display: block;
  color: var(--text-main);
  font-family: var(--font-mono);
  line-height: 1.45;
}

.rs-summary.warning {
  color: var(--accent-warning);
  font-weight: 600;
}

.rs-summary.error {
  color: var(--accent-danger);
  font-weight: 600;
}

.entropy-status {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .main-content {
    padding: 1rem;
  }
}

@media (max-width: 600px) {
  .split-grid,
  .config-controls,
  .rs-controls {
    grid-template-columns: 1fr;
  }
}