/* ============================================================
   Design tokens — THEMEABLE
   Default (:root) = SAP Fiori. Override palette/font/shape per
   theme via [data-theme="n8n"] / [data-theme="chatgpt"].
   The --color-* aliases reference the base vars with var(), so
   redefining the base palette in a theme block cascades to
   every component automatically.
   ============================================================ */
:root {
  /* ---- SAP Fiori palette (default theme) ---- */
  --fiori-shell-bg: #ffffff;
  --fiori-shell-border: #d9d9d9;
  --fiori-shell-shadow: 0 0 0.125rem 0 rgba(85, 107, 130, 0.72), inset 0 -0.0625rem 0 0 #d9d9d9;
  --fiori-sap-blue: #0a6ed1;
  --fiori-sap-blue-hover: #0854a0;
  --fiori-sap-blue-light: #ebf5fe;
  --fiori-page-bg: #f5f6f7;
  --fiori-sidenav-bg: #ffffff;
  --fiori-sidenav-hover: #f5f6f7;
  --fiori-sidenav-selected: #ebf5fe;
  --fiori-text: #32363a;
  --fiori-text-muted: #6a6d70;
  --fiori-border: #d9d9d9;
  --fiori-positive: #107e3e;
  --fiori-negative: #bb0000;
  --fiori-critical: #e9730c;
  --fiori-neutral-bg: #f5f6f7;

  /* BH hybrid accent (secondary) */
  --bih-teal: #00a982;
  --bih-teal-hover: #008f6f;
  --bih-teal-light: #e8f5f1;

  /* type / shape / depth (themeable) */
  --font-family: "72", "72full", Arial, "Helvetica Neue", Helvetica, sans-serif;
  --font-heading: var(--font-family);
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius: 0.25rem;
  --radius-sm: 0.125rem;
  --shadow-card: 0 0 0.125rem 0 rgba(85, 107, 130, 0.2);
  --shadow-card-hover: 0 0.125rem 0.5rem rgba(10, 110, 209, 0.15);
  --canvas-bg-image: none;
  --canvas-bg-size: auto;
  --color-surface-demo: #fff8e1;

  /* ---- semantic aliases (resolve dynamically per theme) ---- */
  --color-accent-teal: var(--bih-teal);
  --color-accent-teal-dark: var(--bih-teal-hover);
  --color-accent-primary: var(--fiori-sap-blue);
  --color-accent-primary-hover: var(--fiori-sap-blue-hover);
  --color-text-body: var(--fiori-text);
  --color-text-heading: var(--fiori-text);
  --color-text-dark: var(--fiori-text);
  --color-text-muted: var(--fiori-text-muted);
  --color-surface: var(--fiori-shell-bg);
  --color-surface-page: var(--fiori-page-bg);
  --color-surface-muted: var(--fiori-neutral-bg);
  --color-border: var(--fiori-border);
  --color-border-input: var(--fiori-sap-blue);
  --color-hover: var(--fiori-sidenav-hover);
  --color-rejected: var(--fiori-negative);
  --color-approved-bg: #f1fdf6;
  --color-pending-bg: #fef7f1;
  --color-draft-bg: var(--fiori-neutral-bg);

  /* structure (shared across all themes) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --sidebar-width: 16rem;
  --header-height: 2.75rem;
  --demo-banner-height: 28px;
}

/* ============================================================
   THEME: n8n — technical · vibrant · product
   Coral accent, rounded cards, defined shadows, dotted canvas,
   geometric display + humanist body + monospace.
   ============================================================ */
[data-theme="n8n"] {
  --fiori-shell-bg: #ffffff;
  --fiori-shell-shadow: 0 1px 0 0 #e6e8ec;
  --fiori-sap-blue: #ff5b46;          /* primary accent = coral */
  --fiori-sap-blue-hover: #e8412b;
  --fiori-sap-blue-light: #fff0ed;
  --fiori-page-bg: #f3f4f6;
  --fiori-sidenav-bg: #ffffff;
  --fiori-sidenav-hover: #f6f7f9;
  --fiori-sidenav-selected: #fff0ed;
  --fiori-text: #15171c;
  --fiori-text-muted: #5b6270;
  --fiori-border: #e6e8ec;
  --fiori-positive: #18a957;
  --fiori-negative: #e5484d;
  --fiori-critical: #f59014;
  --fiori-neutral-bg: #f3f4f6;

  /* single confident accent — secondary follows coral */
  --bih-teal: #ff5b46;
  --bih-teal-hover: #e8412b;
  --bih-teal-light: #fff0ed;

  --font-family: "Hanken Grotesk", system-ui, sans-serif;
  --font-heading: "Bricolage Grotesque", "Hanken Grotesk", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 3px rgba(16, 24, 40, 0.10), 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-card-hover: 0 8px 24px rgba(16, 24, 40, 0.12), 0 2px 6px rgba(16, 24, 40, 0.08);
  --canvas-bg-image: radial-gradient(rgba(20, 23, 33, 0.05) 1.4px, transparent 1.4px);
  --canvas-bg-size: 22px 22px;
  --color-surface-demo: #fff0ed;
  --color-approved-bg: #e8f8ef;
  --color-pending-bg: #fef3e2;
}

/* ============================================================
   THEME: ChatGPT — minimal · monochrome · spacious
   Near-black primary, subtle green hint, hairline borders,
   minimal shadow, refined neutral sans.
   ============================================================ */
[data-theme="chatgpt"] {
  --fiori-shell-bg: #ffffff;
  --fiori-shell-shadow: 0 1px 0 0 #ececed;
  --fiori-sap-blue: #0d0d0d;          /* primary accent = near-black */
  --fiori-sap-blue-hover: #2a2a2a;
  --fiori-sap-blue-light: #f1f1f2;
  --fiori-page-bg: #f7f7f8;
  --fiori-sidenav-bg: #ffffff;
  --fiori-sidenav-hover: #f3f3f4;
  --fiori-sidenav-selected: #ececed;
  --fiori-text: #2d333a;
  --fiori-text-muted: #6e7681;
  --fiori-border: #e5e5e6;
  --fiori-positive: #10a37f;
  --fiori-negative: #e02e2a;
  --fiori-critical: #d97706;
  --fiori-neutral-bg: #f7f7f8;

  /* subtle ChatGPT-green secondary hint */
  --bih-teal: #10a37f;
  --bih-teal-hover: #0e8c6d;
  --bih-teal-light: #e7f6f1;

  --font-family: "Instrument Sans", system-ui, sans-serif;
  --font-heading: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: none;
  --shadow-card-hover: 0 2px 10px rgba(0, 0, 0, 0.06);
  --canvas-bg-image: none;
  --canvas-bg-size: auto;
  --color-surface-demo: #f1f1f2;
  --color-approved-bg: #e7f6f1;
  --color-pending-bg: #fdf3e7;
}

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

body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-body);
  background: var(--color-surface-page);
}

h1, h2, h3 {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  font-weight: 400;
}

h1 { font-size: 1.5rem; color: var(--fiori-text); }
h2 { font-size: 1.125rem; }
h3 { font-size: 1rem; }

a {
  color: var(--fiori-sap-blue);
  text-decoration: none;
}

a:hover {
  color: var(--fiori-sap-blue-hover);
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 0.0625rem solid var(--fiori-sap-blue);
  outline-offset: 0.0625rem;
}