/* JACC Design Prototype — shared JA palette; themes vary layout/style only */
:root {
  --ja-optimistic-ice: #C2EDF0;
  --ja-reach-for-the-sky: #99D9DF;
  --ja-possibility-pearl: #EEF3F4;
  --ja-confident-cream: #F3F2B3;
  --ja-enterprise-aqua: #00C0CA;
  --ja-gritty-green: #BBD153;
  --ja-empowered-yellow: #E3E24F;
  --ja-leadership-lime: #8FC440;
  --ja-resilient-turquoise: #00A0AF;
  --ja-transforming-teal: #008B9C;
  --ja-adaptable-azure: #28708B;
  --ja-boundless-blue: #285F74;
  --ja-startup-jade: #46B17B;
  --ja-global-green: #009424;
  --ja-sustainable-forest: #00763D;
  --ja-immersive-blue-black: #22404D;
  --ja-real-world-red: #F65F4E;
  --white: #FFFFFF;

  /* Shared semantic colours (all themes) */
  --bg: var(--ja-possibility-pearl);
  --bg-elevated: var(--white);
  --surface: var(--white);
  --surface-2: var(--ja-optimistic-ice);
  --sunken: color-mix(in srgb, var(--ja-optimistic-ice) 70%, var(--white));
  --ink: var(--ja-immersive-blue-black);
  --ink-2: var(--ja-boundless-blue);
  --ink-3: var(--ja-adaptable-azure);
  --line: var(--ja-optimistic-ice);
  --line-strong: var(--ja-reach-for-the-sky);
  --primary: var(--ja-boundless-blue);
  --primary-hover: var(--ja-immersive-blue-black);
  --on-primary: var(--white);
  --accent: var(--ja-enterprise-aqua);
  --on-accent: var(--ja-immersive-blue-black);
  --success: var(--ja-sustainable-forest);
  --success-fill: var(--ja-startup-jade);
  --warning: var(--ja-empowered-yellow);
  --danger: var(--ja-real-world-red);
  --hero-bg: var(--ja-immersive-blue-black);
  --hero-fg: var(--white);
  --hero-accent: var(--ja-enterprise-aqua);
  --nav-pill: var(--sunken);
  --content-max: 1100px;
  --content-pad: 20px;
  --shell-blur: saturate(180%) blur(14px);
  --shell-bg: color-mix(in srgb, var(--bg) 88%, transparent);
  --shadow: 0 1px 2px rgba(34, 64, 77, .06), 0 4px 16px rgba(34, 64, 77, .06);
  --shadow-float: 0 8px 28px rgba(34, 64, 77, .12);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --letter-display: -0.02em;
  --density: 1;
  --card-border: 1px solid var(--line);
  --pattern: none;
}

/* ── Baobab — soft foundations, 3-col, constrained ── */
[data-theme="baobab"] {
  --theme-name: "Concept 1";
  --theme-tagline: "Soft · 3-column · calm";
  --content-max: 1100px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
}

/* ── Horizon — full-bleed, cinematic layout ── */
[data-theme="horizon"] {
  --theme-name: "Concept 2";
  --theme-tagline: "Cinematic · hero · featured · side rail";
  --content-max: none;
  --content-pad: clamp(16px, 3vw, 40px);
  --horizon-shell-max: none;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow: 0 8px 28px rgba(34, 64, 77, .08);
  --shadow-float: 0 16px 40px rgba(34, 64, 77, .14);
  --card-border: 0;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --letter-display: -0.03em;
  --shell-bg: color-mix(in srgb, var(--white) 86%, transparent);
}

/* ── Verdant — editorial magazine column ── */
[data-theme="verdant"] {
  --theme-name: "Concept 3";
  --theme-tagline: "Editorial · centred · story-led";
  --content-max: 820px;
  --content-pad: 24px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --letter-display: -0.01em;
  --card-border: 1px solid color-mix(in srgb, var(--ja-boundless-blue) 10%, transparent);
  --shadow: 0 2px 0 color-mix(in srgb, var(--ja-boundless-blue) 6%, transparent);
  --shadow-float: 0 12px 32px rgba(34, 64, 77, .1);
}

/* ── Pulse — full-width kinetic feed ── */
[data-theme="pulse"] {
  --theme-name: "Concept 4";
  --theme-tagline: "Full-width · live feed · kinetic";
  --content-max: 100%;
  --content-pad: 24px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 22px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --shell-blur: saturate(160%) blur(16px);
  --card-border: 1px solid color-mix(in srgb, var(--ja-enterprise-aqua) 22%, var(--line));
}

/* ── Spark — lively motion-first feed ── */
[data-theme="spark"] {
  --theme-name: "Concept 5";
  --theme-tagline: "Lively · animated · playful";
  --content-max: 100%;
  --content-pad: 24px;
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --radius-pill: 999px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --letter-display: -0.03em;
  --shadow: 0 4px 14px rgba(34, 64, 77, .08);
  --shadow-float: 0 16px 40px rgba(0, 192, 202, .22);
  --card-border: 1px solid color-mix(in srgb, var(--ja-enterprise-aqua) 30%, var(--line));
  --shell-blur: saturate(180%) blur(18px);
  --shell-bg: color-mix(in srgb, var(--white) 82%, transparent);
  --pattern:
    radial-gradient(ellipse 60% 40% at 10% 0%, color-mix(in srgb, var(--ja-enterprise-aqua) 22%, transparent), transparent 55%),
    radial-gradient(ellipse 50% 35% at 90% 10%, color-mix(in srgb, var(--ja-empowered-yellow) 28%, transparent), transparent 50%),
    radial-gradient(ellipse 45% 30% at 50% 100%, color-mix(in srgb, var(--ja-leadership-lime) 16%, transparent), transparent 55%);
}