/*
 * Agent Studio — design tokens (SPEC 10, 11, 12).
 *
 * Accessibility note: SPEC 10 lists --text-muted as #8A8D91, which measures
 * 3.33:1 against white and fails the WCAG 2.1 AA target set in SPEC 65.
 * --text-muted is therefore darkened to #71747A (4.68:1). The original value is
 * preserved as --text-disabled for decorative, non-informational use only.
 */

:root {
  /* ---- Surfaces (SPEC 10) ---- */
  --background: #ffffff;
  --surface: #ffffff;
  --surface-secondary: #fafafa;
  --surface-muted: #f5f5f5;
  --surface-inset: #fbfbfc;
  --surface-code: #fcfcfd;

  /* ---- Text (SPEC 10) ---- */
  --text-primary: #101010;
  --text-secondary: #65676b;
  --text-muted: #71747a;
  --text-disabled: #8a8d91;
  --text-on-accent: #ffffff;

  /* ---- Borders (SPEC 10) ---- */
  --border-default: #e4e6eb;
  --border-subtle: #efefef;
  --border-strong: #d6d9df;

  /* ---- Brand accents (derived from the SPEC 10 gradient) ---- */
  --accent: #c13584; /* 5.11:1 on white — safe for text and icons */
  --accent-deep: #833ab4; /* 6.50:1 on white */
  --accent-hot: #e1306c;
  --accent-warm: #fcaf45;
  --accent-soft: #fdf2f9;
  --accent-soft-strong: #fae8f4;

  /* ---- Gradients (SPEC 10) ---- */
  --gradient-primary: linear-gradient(
    135deg,
    #833ab4 0%,
    #c13584 25%,
    #e1306c 50%,
    #fd1d1d 72%,
    #fcaf45 100%
  );
  --gradient-neon: linear-gradient(135deg, #7c3aed, #d946ef, #ff2d95, #ff6b35);
  --gradient-ring: linear-gradient(135deg, #833ab4, #d946ef, #ff2d95, #ff7a00);

  /* ---- Status ---- */
  --success: #1a7f4b;
  --success-soft: #eaf7f0;
  --danger: #c0281f;
  --danger-soft: #fdf0ef;
  --warning: #8a5a00;
  --warning-soft: #fdf6e7;

  /* ---- Typography (SPEC 11) ---- */
  --font-sans: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  --text-page-title: 24px;
  --text-section-title: 18px;
  --text-label: 13px;
  --text-body: 14px;
  --text-helper: 12px;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-label: 600;
  --weight-section: 650;
  --weight-bold: 700;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  /* ---- Spacing ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ---- Radii ---- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  /* ---- Shadows (SPEC 74: discreet) ---- */
  --shadow-xs: 0 1px 2px rgba(16, 16, 16, 0.04);
  --shadow-sm: 0 1px 3px rgba(16, 16, 16, 0.06), 0 1px 2px rgba(16, 16, 16, 0.04);
  --shadow-md: 0 4px 12px rgba(16, 16, 16, 0.07);
  --shadow-lg: 0 12px 32px rgba(16, 16, 16, 0.1);
  --shadow-glow: 0 0 20px rgba(217, 70, 239, 0.2), 0 0 40px rgba(255, 45, 149, 0.12);

  /* ---- Layout (SPEC 12) ---- */
  --header-height: 60px;
  --sidebar-width: 260px;
  --sidebar-rail: 64px;
  --preview-width: 420px;
  --preview-rail: 46px;
  --content-max: 720px;

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 120ms;
  --duration-base: 180ms;
  --duration-section: 260ms;
  --duration-enter: 320ms;
  --duration-panel: 300ms;
  --duration-ring-spin: 7s;

  /* Neon spectrum for the rotating story ring. */
  --gradient-neon-ring: conic-gradient(
    from 0deg,
    #7c3aed,
    #d946ef,
    #ff2d95,
    #ff6b35,
    #fcaf45,
    #22d3ee,
    #7c3aed
  );

  /* ---- Z-index ---- */
  --z-header: 40;
  --z-drawer: 60;
  --z-dialog: 80;
  --z-toast: 100;
}

@media (max-width: 1439px) {
  :root {
    --sidebar-width: 220px;
    --preview-width: 360px;
  }
}