/* ==========================================================================
   Family Admin Console - Stylesheet
   Strict CSP: External CSS only, native system fonts, no CDN resources.
   Palette: Restrained calm teal Family theme with dark mode support.
   ========================================================================== */

:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

  /* Calm Teal Palette (Light) */
  --bg-page: #f2f7f6;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f8faf9;
  --bg-subtle: #e6f0ed;

  --border-subtle: #d6e4e0;
  --border-strong: #adc5be;
  --border-focus: #0d9488;

  --text-main: #132724;
  --text-muted: #48615b;
  --text-inverted: #ffffff;

  --teal-primary: #0f766e;
  --teal-hover: #115e59;
  --teal-active: #134e4a;
  --teal-light: #ccfbf1;
  --teal-tint: #f0fdfa;

  --color-online: #0f766e;
  --color-online-bg: #ccfbf1;
  --color-offline: #64748b;
  --color-offline-bg: #e2e8f0;

  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;

  --color-warning: #b45309;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;

  --color-success: #047857;
  --color-success-bg: #ecfdf5;
  --color-success-border: #a7f3d0;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 3px rgba(15, 118, 110, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 118, 110, 0.08);
  --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #071715;
    --bg-surface: #0e2421;
    --bg-surface-elevated: #132e2a;
    --bg-subtle: #183833;

    --border-subtle: #1e4540;
    --border-strong: #2a5e57;
    --border-focus: #2dd4bf;

    --text-main: #e8f4f2;
    --text-muted: #8ea9a4;
    --text-inverted: #071715;

    --teal-primary: #14b8a6;
    --teal-hover: #2dd4bf;
    --teal-active: #5eead4;
    --teal-light: #134e4a;
    --teal-tint: #0c2b27;

    --color-online: #34d399;
    --color-online-bg: #064e3b;
    --color-offline: #94a3b8;
    --color-offline-bg: #1e293b;

    --color-error: #f87171;
    --color-error-bg: #450a0a;
    --color-error-border: #7f1d1d;

    --color-warning: #fbbf24;
    --color-warning-bg: #451a03;
    --color-warning-border: #78350f;

    --color-success: #34d399;
    --color-success-bg: #064e3b;
    --color-success-border: #065f46;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  }
}

/* ==========================================================================
   Reset & Base Elements
   ========================================================================== */

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

[hidden] {
  display: none !important;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-main);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Accessible focus ring */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* ==========================================================================
   App Layout
   ========================================================================== */

.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

@media (min-width: 640px) {
  .app-layout {
    padding: 24px;
  }
}

/* ==========================================================================
   Header
   ========================================================================== */

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: var(--teal-light);
  color: var(--teal-primary);
}

.brand-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.header-status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-offline);
}

.status-chip.chip-online {
  background-color: var(--color-online-bg);
  border-color: var(--color-online);
  color: var(--color-online);
}

.status-chip.chip-online .status-dot {
  background-color: var(--color-online);
}

.status-chip.chip-offline {
  background-color: var(--color-offline-bg);
  border-color: var(--color-offline);
  color: var(--color-offline);
}

.status-chip.chip-offline .status-dot {
  background-color: var(--color-offline);
}

.status-chip.chip-active {
  background-color: var(--teal-tint);
  border-color: var(--border-focus);
  color: var(--teal-primary);
}

/* ==========================================================================
   Main Content & Panels
   ========================================================================== */

.app-main {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.panel-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}

.panel-description {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.input-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
}

.form-input {
  flex: 1;
  min-width: 220px;
  height: 42px;
  padding: 0 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-main);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease;
}

.form-input:focus {
  border-color: var(--border-focus);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--teal-primary);
  color: var(--text-inverted);
}

.btn-primary:not(:disabled):hover {
  background-color: var(--teal-hover);
}

.btn-primary:not(:disabled):active {
  background-color: var(--teal-active);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-strong);
  color: var(--text-main);
}

.btn-secondary:not(:disabled):hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-focus);
}

.btn-accent {
  background-color: var(--teal-primary);
  color: var(--text-inverted);
}

.btn-accent:not(:disabled):hover {
  background-color: var(--teal-hover);
}

.btn-danger {
  background-color: var(--color-error);
  color: #ffffff;
}

.btn-danger:not(:disabled):hover {
  filter: brightness(0.9);
}

/* ==========================================================================
   Policy Scope Card
   ========================================================================== */

.policy-info-panel {
  background-color: var(--teal-tint);
  border-color: var(--border-strong);
}

.info-text {
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 8px;
}

.info-subtext {
  font-size: 13px;
  color: var(--text-muted);
}

/* ==========================================================================
   Editor Panel & Header
   ========================================================================== */

.editor-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.editor-title-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.editor-state-label {
  font-size: 13px;
  color: var(--text-muted);
}

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

/* Placeholders & Banners */

.state-placeholder {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  background-color: var(--bg-surface-elevated);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
}

.status-banner {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: 16px;
}

.status-banner.banner-info {
  background-color: var(--teal-tint);
  border: 1px solid var(--border-focus);
  color: var(--teal-primary);
}

.status-banner.banner-success {
  background-color: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success);
}

.status-banner.banner-warning {
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  color: var(--color-warning);
}

.status-banner.banner-error {
  background-color: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  color: var(--color-error);
}

/* Editor Container */

.editor-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.editor-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.editor-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

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

.code-editor {
  width: 100%;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-main);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  resize: vertical;
  min-height: 320px;
  tab-size: 2;
  white-space: pre;
}

.code-editor:disabled {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  cursor: not-allowed;
}

.code-editor.editor-invalid {
  border-color: var(--color-error);
}

.editor-footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.validation-feedback {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-error);
  min-height: 20px;
}

/* ==========================================================================
   Confirmation Dialog
   ========================================================================== */

.confirm-modal {
  margin: auto;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  color: var(--text-main);
  padding: 0;
  max-width: 520px;
  width: 90vw;
  box-shadow: var(--shadow-modal);
}

.confirm-modal::backdrop {
  background-color: rgba(7, 23, 21, 0.6);
  backdrop-filter: blur(2px);
}

.modal-box {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 14px;
}

.modal-alert {
  padding: 12px;
  border-radius: var(--radius-sm);
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  color: var(--color-warning);
}

.modal-summary {
  font-weight: 600;
  padding: 8px 12px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

.modal-note {
  color: var(--text-muted);
  font-size: 13px;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.app-footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}