/* DOCUNIZE Outlook Signatures – Fluent-aligned taskpane design */

:root {
  --font-family: "Segoe UI Variable", "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;

  --color-bg: #fafafa;
  --color-fg: #242424;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f5f5;
  --color-surface-fg: #242424;
  --color-border: #e0e0e0;
  --color-border-strong: #d1d1d1;
  --color-muted: #616161;
  --color-accent: #0f6cbd;
  --color-accent-hover: #115ea3;
  --color-error: #bc2f32;
  --color-error-bg: #fde7e9;
  --color-success: #0e700e;
  --color-success-bg: #dff6dd;
  --color-info-bg: #ebf3fc;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.06), 0 0 0 1px var(--color-border);
  --header-border: 1px solid var(--color-border);
}

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

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

:not(:defined) {
  visibility: hidden;
}

body.app-root {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-fg);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

/* Header */
.app-header {
  flex-shrink: 0;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-surface);
  border-bottom: var(--header-border);
}

.app-header__brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.app-header__logo {
  display: block;
  max-width: 140px;
  height: auto;
}

.app-header__subtitle {
  margin: 0;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.01em;
}

/* Main content */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-sm);
  min-height: 0;
}

.app-progress {
  margin-bottom: var(--spacing-md);
}

.app-tabs {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

fluent-tab-panel {
  flex: 1;
  overflow-y: auto;
  padding-top: var(--spacing-md);
}

fluent-tab {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-muted);
}

fluent-tab[aria-selected="true"] {
  color: var(--color-accent);
  font-weight: 600;
}

/* Signatures list */
.signatures-panel {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.signature-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

.signature-card fluent-card {
  border-radius: 0;
}

.signature-card__header {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  border-radius: 0;
}

.signature-card__title {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-surface-fg);
  line-height: 1.3;
}

.signature-card__preview {
  padding: var(--spacing-md) var(--spacing-lg);
  max-height: 220px;
  overflow: auto;
  background: var(--color-surface);
  color: var(--color-surface-fg);
  border-radius: 0;
}

.signature-card__preview fluent-card,
.signature-card__preview .content {
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.signature-card__actions {
  display: flex;
  justify-content: flex-end;
  padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 0;
}

/* Settings panel */
.settings-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.settings-section__title {
  margin: 0 0 var(--spacing-xs);
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-surface-fg);
}

.settings-section__hint {
  margin: 0 0 var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  line-height: 1.45;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.form-field__label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-surface-fg);
}

.form-field fluent-select {
  width: 100%;
}

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

/* State messages (loading, empty, error inline) */
.state-message {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xl);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-align: center;
}

.state-message--empty {
  flex-direction: column;
  gap: var(--spacing-md);
}

.state-message__spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Footer status banner */
.app-footer {
  flex-shrink: 0;
  padding: 0 var(--spacing-lg) var(--spacing-md);
}

.status-banner {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
}

.status-banner--hidden {
  display: none;
}

.status-banner--info {
  background: var(--color-info-bg);
  color: var(--color-fg);
}

.status-banner--success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.status-banner--error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

/* Fluent component overrides */
fluent-select {
  min-width: 0;
}

fluent-select[current-value] .selected-value {
  font-style: italic;
  color: var(--color-muted);
}

fluent-button {
  min-width: fit-content;
}

fluent-card {
  padding: 0;
  display: block;
  background: transparent;
}

/* Landing page (index.html) */
.landing-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  text-align: center;
}

.landing-main__text {
  margin: 0;
  font-size: var(--font-size-md);
  color: var(--color-muted);
  max-width: 320px;
  line-height: 1.5;
}