/* Base layer: Inter Variable font-face, PicoCSS variable mapping, typography
   utilities, focus rings, motion guards. Replaces legacy app.css. */

/* Inter Variable (self-hosted, latin subset, weight axis only).
   Populated by scripts/vendor_assets.sh. v5 of @fontsource-variable/inter
   doesn't ship an italic axis — italics rely on browser oblique synthesis. */
@font-face {
  font-family: 'Inter Variable';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/static/vendor/fonts/inter/Inter-roman.var.woff2') format('woff2');
}

/* Map PicoCSS vars to design tokens so all Pico-styled elements pick up
   the calm palette without rewriting Pico itself. */
:root {
  --pico-background-color: var(--color-canvas);
  --pico-color: var(--color-text);
  --pico-muted-color: var(--color-text-muted);
  --pico-muted-border-color: var(--color-border);
  --pico-primary: var(--color-primary);
  --pico-primary-hover: var(--color-primary-hover);
  --pico-primary-focus: var(--color-primary-soft);
  --pico-primary-inverse: #FFFFFF;

  --pico-h1-color: var(--color-text);
  --pico-h2-color: var(--color-text);
  --pico-h3-color: var(--color-text);
  --pico-h4-color: var(--color-text);
  --pico-h5-color: var(--color-text);
  --pico-h6-color: var(--color-text);

  --pico-card-background-color: var(--color-surface);
  --pico-card-border-color: var(--color-border);
  --pico-card-sectioning-background-color: var(--color-surface-muted);
  --pico-card-box-shadow: var(--shadow-sm);

  --pico-form-element-background-color: var(--color-surface-sunken);
  --pico-form-element-border-color: var(--color-border);
  --pico-form-element-color: var(--color-text);
  --pico-form-element-placeholder-color: var(--color-text-subtle);
  --pico-form-element-active-background-color: var(--color-surface-sunken);
  --pico-form-element-active-border-color: var(--color-primary);
  --pico-form-element-focus-color: var(--color-primary);
  --pico-form-element-disabled-background-color: var(--color-surface-muted);
  --pico-form-element-disabled-border-color: var(--color-border-subtle);
  --pico-form-element-disabled-opacity: 0.6;

  --pico-table-border-color: var(--color-border-subtle);
  --pico-table-row-stripped-background-color: var(--color-surface-muted);

  --pico-border-color: var(--color-border);
  --pico-border-radius: var(--radius-md);

  --pico-mark-background-color: var(--color-warning-soft);
  --pico-mark-color: var(--color-warning-text);

  --pico-code-background-color: var(--color-surface-sunken);
  --pico-code-color: var(--color-text);

  --pico-blockquote-border-color: var(--color-border);

  --pico-font-family: var(--font-sans);
  --pico-font-family-sans-serif: var(--font-sans);
  --pico-font-feature-settings: var(--font-features);
  --pico-font-size: var(--text-body-size);
  --pico-line-height: var(--text-body-lh);
  --pico-font-weight: 400;

  --pico-spacing: var(--space-4);
  --pico-typography-spacing-vertical: var(--space-4);
  --pico-form-element-spacing-vertical: var(--space-2);
  --pico-form-element-spacing-horizontal: var(--space-3);

  --pico-transition: var(--duration) var(--easing);
}

html, body {
  background: var(--color-canvas);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-feature-settings: var(--font-features);
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
}

/* Typography utilities — match design-system §3.2 */
.text-display {
  font-size: var(--text-display-size);
  line-height: var(--text-display-lh);
  letter-spacing: -0.4px;
  font-weight: 700;
}
.text-h1 {
  font-size: var(--text-h1-size);
  line-height: var(--text-h1-lh);
  letter-spacing: -0.25px;
  font-weight: 700;
}
.text-h2 {
  font-size: var(--text-h2-size);
  line-height: var(--text-h2-lh);
  letter-spacing: -0.15px;
  font-weight: 600;
}
.text-h3 {
  font-size: var(--text-h3-size);
  line-height: var(--text-h3-lh);
  font-weight: 600;
}
.text-body {
  font-size: var(--text-body-size);
  line-height: var(--text-body-lh);
  font-weight: 400;
}
.text-body-prose {
  font-size: var(--text-body-prose-size);
  line-height: var(--text-body-prose-lh);
  font-weight: 400;
}
.text-ui {
  font-size: var(--text-ui-size);
  line-height: var(--text-ui-lh);
  font-weight: 500;
}
.text-button {
  font-size: var(--text-button-size);
  line-height: var(--text-button-lh);
  font-weight: 600;
}
.text-caption {
  font-size: var(--text-caption-size);
  line-height: var(--text-caption-lh);
  letter-spacing: 0.1px;
  font-weight: 500;
}
.text-micro {
  font-size: var(--text-micro-size);
  line-height: var(--text-micro-lh);
  letter-spacing: 0.2px;
  font-weight: 600;
}

.text-muted { color: var(--color-text-muted); }
.text-subtle { color: var(--color-text-subtle); }
.text-tnum { font-variant-numeric: tabular-nums; }

/* Headings default to design-system scale where no explicit class is set. */
h1 { font-size: var(--text-display-size); line-height: var(--text-display-lh); font-weight: 700; letter-spacing: -0.4px; margin: 0 0 var(--space-4); }
h2 { font-size: var(--text-h1-size); line-height: var(--text-h1-lh); font-weight: 700; letter-spacing: -0.25px; margin: 0 0 var(--space-3); }
h3 { font-size: var(--text-h2-size); line-height: var(--text-h2-lh); font-weight: 600; margin: 0 0 var(--space-3); }
h4 { font-size: var(--text-h3-size); line-height: var(--text-h3-lh); font-weight: 600; margin: 0 0 var(--space-2); }

/* Focus ring (clinical floor: WCAG AA). */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Strip browser default outline only when we replace it above. */
:focus { outline: none; }

/* Numeric tabular alignment helper */
.tnum { font-variant-numeric: tabular-nums; }

/* Icons (SVG sprite from macros/ui.html). Default 18px, scales by context. */
svg.icon, .icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  display: block;
  stroke: currentColor;
  fill: none;
}
.empty-icon .icon { width: 32px; height: 32px; }
.topbar-iconbutton .icon,
.user-menu-trigger .icon { width: 20px; height: 20px; }
.alert-icon .icon { width: 18px; height: 18px; }
.sidebar-icon .icon { width: 18px; height: 18px; }
.user-menu-item .icon { width: 16px; height: 16px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* Selection */
::selection {
  background: var(--color-primary-soft);
  color: var(--color-primary-soft-text);
}

/* Links */
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* Generic <hr> divider */
hr { border: 0; border-top: 1px solid var(--color-border-subtle); margin: var(--space-6) 0; }