:root {
  --bg-default: #1B1917;
  --bg-subtle: #23201D;
  --bg-surface-low: #131110;
  --bg-surface-high: #2D2A26;
  --bg-inverse: #ECE6DC;
  --bg-brand: #1F2A27;
  --bg-accent: #22322E;
  --fg-on-default: #EEE8DF;
  --fg-on-subtle: #EEE8DF;
  --fg-on-inverse: #1B1917;
  --fg-on-brand: #EEE8DF;
  --fg-on-accent: #D3E7E0;
  --fg-secondary: #A99F93;
  --fg-disabled: #6B645C;
  --brand-primary: #EEE8DF;
  --brand-primary-hover: #FFFFFF;
  --brand-secondary: #D8B88B;
  --brand-secondary-hover: #E6CDA8;
  --brand-accent: #76AF9F;
  --brand-accent-hover: #90C3B5;
  --border-color-default: #3B3732;
  --border-color-subtle: #2D2A26;
  --border-color-strong: #EEE8DF;
  --color-error: #E58C80;
  --color-warning: #D9A75A;
  --color-info: #76AF9F;
  --color-success: #82BD98;

  --font-body-lg-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-lg-size: 1.2rem;
  --font-body-lg-weight: 400;
  --font-body-lg-line-height: 1.6;
  --font-body-lg-letter-spacing: 0em;
  --font-body-md-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-md-size: 1.0625rem;
  --font-body-md-weight: 400;
  --font-body-md-line-height: 1.7;
  --font-body-md-letter-spacing: 0em;
  --font-body-sm-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-sm-size: 0.95rem;
  --font-body-sm-weight: 400;
  --font-body-sm-line-height: 1.55;
  --font-body-sm-letter-spacing: 0em;
  --font-label-lg-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-lg-size: 0.8rem;
  --font-label-lg-weight: 500;
  --font-label-lg-line-height: 1.3;
  --font-label-lg-letter-spacing: 0.06em;
  --font-label-md-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-md-size: 0.74rem;
  --font-label-md-weight: 500;
  --font-label-md-line-height: 1.3;
  --font-label-md-letter-spacing: 0.08em;
  --font-label-sm-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-sm-size: 0.68rem;
  --font-label-sm-weight: 500;
  --font-label-sm-line-height: 1.25;
  --font-label-sm-letter-spacing: 0.1em;
  --font-title-lg-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-title-lg-size: 1.25rem;
  --font-title-lg-weight: 600;
  --font-title-lg-line-height: 1.35;
  --font-title-lg-letter-spacing: 0em;
  --font-title-md-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-title-md-size: 1.1rem;
  --font-title-md-weight: 600;
  --font-title-md-line-height: 1.4;
  --font-title-md-letter-spacing: 0em;
  --font-display-lg-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display-lg-size: 5rem;
  --font-display-lg-weight: 600;
  --font-display-lg-line-height: 0.98;
  --font-display-lg-letter-spacing: -0.01em;
  --font-display-md-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display-md-size: 3.6rem;
  --font-display-md-weight: 600;
  --font-display-md-line-height: 1.02;
  --font-display-md-letter-spacing: -0.005em;
  --font-headline-lg-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-lg-size: 2.6rem;
  --font-headline-lg-weight: 600;
  --font-headline-lg-line-height: 1.06;
  --font-headline-lg-letter-spacing: 0em;
  --font-headline-md-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-md-size: 2rem;
  --font-headline-md-weight: 600;
  --font-headline-md-line-height: 1.1;
  --font-headline-md-letter-spacing: 0em;
  --font-headline-sm-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-sm-size: 1.55rem;
  --font-headline-sm-weight: 600;
  --font-headline-sm-line-height: 1.15;
  --font-headline-sm-letter-spacing: 0em;

  --spacing-lg: 1.75rem;
  --spacing-md: 1rem;
  --spacing-sm: 0.5rem;
  --spacing-xl: 3rem;
  --spacing-xs: 0.25rem;
  --spacing-section-margin: 0;
  --spacing-container-padding: 2rem;
  --spacing-section-padding-y: 7.5rem;

  --border-radius-lg: 6px;
  --border-radius-md: 4px;
  --border-radius-sm: 2px;
  --border-radius-xl: 10px;
  --border-radius-full: 9999px;

  --shadow-lg: 0 40px 90px rgba(0, 0, 0, 0.55);
  --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 1px 0 rgba(0, 0, 0, 0.35);

  --container-max-width: 1400px;
  --container-padding-x: 2rem;

/* alias legacy — ne pas utiliser dans les nouveaux blocs */
  --color-primary: var(--brand-primary);
  --color-primary-main: var(--brand-primary);
  --color-primary-light: var(--brand-primary);
  --color-primary-dark: var(--brand-primary-hover);
  --color-primary-contrast: var(--fg-on-brand);
  --color-secondary: var(--brand-secondary);
  --color-secondary-main: var(--brand-secondary);
  --color-secondary-light: var(--brand-secondary);
  --color-secondary-dark: var(--brand-secondary-hover);
  --color-secondary-contrast: var(--fg-on-brand);
  --color-accent: var(--brand-accent);
  --color-accent-main: var(--brand-accent);
  --color-accent-light: var(--brand-accent);
  --color-accent-dark: var(--brand-accent-hover);
  --color-accent-contrast: var(--fg-on-accent);
  --color-background: var(--bg-default);
  --color-background-default: var(--bg-default);
  --color-background-paper: var(--bg-subtle);
  --color-paper: var(--bg-subtle);
  --color-text-primary: var(--fg-on-default);
  --color-text-secondary: var(--fg-secondary);
  --color-text-disabled: var(--fg-disabled);
  --font-family-body: var(--font-body-md-family);
  --font-family-heading: var(--font-headline-lg-family);
  --font-size-base: var(--font-body-md-size);
  --font-size-small: var(--font-body-sm-size);
  --font-size-h1: var(--font-display-lg-size);
  --font-size-h2: var(--font-headline-lg-size);
  --font-size-h3: var(--font-headline-md-size);
  --font-size-h4: var(--font-headline-sm-size);
  --font-size-h5: var(--font-title-lg-size);
  --font-size-h6: var(--font-title-md-size);
  --line-height-body: var(--font-body-md-line-height);
  --line-height-heading: var(--font-headline-lg-line-height);
  --border-radius: var(--border-radius-md);
  --heading-letter-spacing: var(--font-headline-lg-letter-spacing);
  --heading-weight: var(--font-headline-lg-weight);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
}

[data-theme="dark"] {
  --bg-default: #1B1917;
  --bg-subtle: #23201D;
  --bg-surface-low: #131110;
  --bg-surface-high: #2D2A26;
  --bg-inverse: #ECE6DC;
  --bg-brand: #1F2A27;
  --bg-accent: #22322E;
  --fg-on-default: #EEE8DF;
  --fg-on-subtle: #EEE8DF;
  --fg-on-inverse: #1B1917;
  --fg-on-brand: #EEE8DF;
  --fg-on-accent: #D3E7E0;
  --fg-secondary: #A99F93;
  --fg-disabled: #6B645C;
  --brand-primary: #EEE8DF;
  --brand-primary-hover: #FFFFFF;
  --brand-secondary: #D8B88B;
  --brand-secondary-hover: #E6CDA8;
  --brand-accent: #76AF9F;
  --brand-accent-hover: #90C3B5;
  --border-color-default: #3B3732;
  --border-color-subtle: #2D2A26;
  --border-color-strong: #EEE8DF;
  --color-error: #E58C80;
  --color-warning: #D9A75A;
  --color-info: #76AF9F;
  --color-success: #82BD98;
}

.block--tone-inverse {
  --bg-default: var(--bg-inverse);
  --bg-subtle: var(--bg-inverse);
  --bg-surface-low: var(--bg-inverse);
  --bg-surface-high: var(--bg-inverse);
  --bg-brand: var(--bg-inverse);
  --bg-accent: var(--bg-inverse);
  --fg-on-default: var(--fg-on-inverse);
  --fg-on-subtle: var(--fg-on-inverse);
  --fg-on-brand: var(--fg-on-inverse);
  --fg-on-accent: var(--fg-on-inverse);
  --fg-secondary: color-mix(in srgb, var(--fg-on-inverse) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-inverse) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-inverse) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-inverse) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-inverse) 36%, transparent);
}

.block--tone-shell-inverse [class$="__shell"],
.block--tone-shell-inverse [class*="__shell "] {
  --bg-default: var(--bg-inverse);
  --bg-subtle: var(--bg-inverse);
  --bg-surface-low: var(--bg-inverse);
  --bg-surface-high: var(--bg-inverse);
  --bg-brand: var(--bg-inverse);
  --bg-accent: var(--bg-inverse);
  --fg-on-default: var(--fg-on-inverse);
  --fg-on-subtle: var(--fg-on-inverse);
  --fg-on-brand: var(--fg-on-inverse);
  --fg-on-accent: var(--fg-on-inverse);
  --fg-secondary: color-mix(in srgb, var(--fg-on-inverse) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-inverse) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-inverse) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-inverse) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-inverse) 36%, transparent);
}

.block--tone-brand {
  --bg-default: var(--bg-brand);
  --bg-subtle: var(--bg-brand);
  --bg-surface-low: var(--bg-brand);
  --bg-surface-high: var(--bg-brand);
  --bg-inverse: var(--bg-brand);
  --bg-accent: var(--bg-brand);
  --fg-on-default: var(--fg-on-brand);
  --fg-on-subtle: var(--fg-on-brand);
  --fg-on-inverse: var(--fg-on-brand);
  --fg-on-accent: var(--fg-on-brand);
  --fg-secondary: color-mix(in srgb, var(--fg-on-brand) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-brand) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-brand) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-brand) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-brand) 36%, transparent);
}

.block--tone-shell-brand [class$="__shell"],
.block--tone-shell-brand [class*="__shell "] {
  --bg-default: var(--bg-brand);
  --bg-subtle: var(--bg-brand);
  --bg-surface-low: var(--bg-brand);
  --bg-surface-high: var(--bg-brand);
  --bg-inverse: var(--bg-brand);
  --bg-accent: var(--bg-brand);
  --fg-on-default: var(--fg-on-brand);
  --fg-on-subtle: var(--fg-on-brand);
  --fg-on-inverse: var(--fg-on-brand);
  --fg-on-accent: var(--fg-on-brand);
  --fg-secondary: color-mix(in srgb, var(--fg-on-brand) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-brand) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-brand) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-brand) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-brand) 36%, transparent);
}

.block--tone-accent {
  --bg-default: var(--bg-accent);
  --bg-subtle: var(--bg-accent);
  --bg-surface-low: var(--bg-accent);
  --bg-surface-high: var(--bg-accent);
  --bg-inverse: var(--bg-accent);
  --bg-brand: var(--bg-accent);
  --fg-on-default: var(--fg-on-accent);
  --fg-on-subtle: var(--fg-on-accent);
  --fg-on-inverse: var(--fg-on-accent);
  --fg-on-brand: var(--fg-on-accent);
  --fg-secondary: color-mix(in srgb, var(--fg-on-accent) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-accent) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-accent) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-accent) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-accent) 36%, transparent);
}

.block--tone-shell-accent [class$="__shell"],
.block--tone-shell-accent [class*="__shell "] {
  --bg-default: var(--bg-accent);
  --bg-subtle: var(--bg-accent);
  --bg-surface-low: var(--bg-accent);
  --bg-surface-high: var(--bg-accent);
  --bg-inverse: var(--bg-accent);
  --bg-brand: var(--bg-accent);
  --fg-on-default: var(--fg-on-accent);
  --fg-on-subtle: var(--fg-on-accent);
  --fg-on-inverse: var(--fg-on-accent);
  --fg-on-brand: var(--fg-on-accent);
  --fg-secondary: color-mix(in srgb, var(--fg-on-accent) 72%, transparent);
  --fg-disabled: color-mix(in srgb, var(--fg-on-accent) 45%, transparent);
  --border-color-default: color-mix(in srgb, var(--fg-on-accent) 18%, transparent);
  --border-color-subtle: color-mix(in srgb, var(--fg-on-accent) 8%, transparent);
  --border-color-strong: color-mix(in srgb, var(--fg-on-accent) 36%, transparent);
}

.palette-creations {
  --bg-default: #F3EEE6;
  --bg-subtle: #EBE4D9;
  --bg-surface-low: #FBF8F3;
  --bg-surface-high: #E2D9CB;
  --bg-inverse: #2A231D;
  --bg-brand: #EFE4D3;
  --bg-accent: #EAE0CF;
  --fg-on-default: #2A231D;
  --fg-on-subtle: #2A231D;
  --fg-on-inverse: #F3EEE6;
  --fg-on-brand: #2A231D;
  --fg-on-accent: #4A3420;
  --fg-secondary: #6E6356;
  --fg-disabled: #A99E90;
  --brand-primary: #2A231D;
  --brand-primary-hover: #120E0B;
  --brand-secondary: #C39A62;
  --brand-secondary-hover: #B0874E;
  --brand-accent: #8C5A2B;
  --brand-accent-hover: #74481F;
  --border-color-default: #D5C9B8;
  --border-color-subtle: #E5DDD0;
  --border-color-strong: #2A231D;
  --color-error: #B3261E;
  --color-warning: #9A6512;
  --color-info: #8C5A2B;
  --color-success: #3F7A55;

  --font-body-lg-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-lg-size: 1.2rem;
  --font-body-lg-weight: 400;
  --font-body-lg-line-height: 1.65;
  --font-body-lg-letter-spacing: 0em;
  --font-body-md-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-md-size: 1.0625rem;
  --font-body-md-weight: 400;
  --font-body-md-line-height: 1.75;
  --font-body-md-letter-spacing: 0em;
  --font-body-sm-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body-sm-size: 0.95rem;
  --font-body-sm-weight: 400;
  --font-body-sm-line-height: 1.55;
  --font-body-sm-letter-spacing: 0em;
  --font-label-lg-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-lg-size: 0.8rem;
  --font-label-lg-weight: 500;
  --font-label-lg-line-height: 1.3;
  --font-label-lg-letter-spacing: 0.06em;
  --font-label-md-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-md-size: 0.74rem;
  --font-label-md-weight: 500;
  --font-label-md-line-height: 1.3;
  --font-label-md-letter-spacing: 0.08em;
  --font-label-sm-family: 'IBM Plex Mono', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-label-sm-size: 0.68rem;
  --font-label-sm-weight: 500;
  --font-label-sm-line-height: 1.25;
  --font-label-sm-letter-spacing: 0.1em;
  --font-title-lg-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-title-lg-size: 1.25rem;
  --font-title-lg-weight: 600;
  --font-title-lg-line-height: 1.35;
  --font-title-lg-letter-spacing: 0em;
  --font-title-md-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-title-md-size: 1.1rem;
  --font-title-md-weight: 600;
  --font-title-md-line-height: 1.4;
  --font-title-md-letter-spacing: 0em;
  --font-display-lg-family: 'Fraunces', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display-lg-size: 5.4rem;
  --font-display-lg-weight: 400;
  --font-display-lg-line-height: 1;
  --font-display-lg-letter-spacing: -0.02em;
  --font-display-md-family: 'Fraunces', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display-md-size: 3.8rem;
  --font-display-md-weight: 400;
  --font-display-md-line-height: 1.04;
  --font-display-md-letter-spacing: -0.015em;
  --font-headline-lg-family: 'Fraunces', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-lg-size: 2.7rem;
  --font-headline-lg-weight: 400;
  --font-headline-lg-line-height: 1.08;
  --font-headline-lg-letter-spacing: -0.01em;
  --font-headline-md-family: 'Fraunces', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-md-size: 2.1rem;
  --font-headline-md-weight: 400;
  --font-headline-md-line-height: 1.12;
  --font-headline-md-letter-spacing: 0em;
  --font-headline-sm-family: 'Barlow Semi Condensed', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-headline-sm-size: 1.55rem;
  --font-headline-sm-weight: 600;
  --font-headline-sm-line-height: 1.15;
  --font-headline-sm-letter-spacing: 0em;

  --border-radius-lg: 6px;
  --border-radius-md: 4px;
  --border-radius-sm: 2px;
  --border-radius-xl: 10px;
  --border-radius-full: 9999px;

  --shadow-lg: 0 40px 90px rgba(42, 35, 29, 0.2);
  --shadow-md: 0 18px 40px rgba(42, 35, 29, 0.12);
  --shadow-sm: 0 1px 0 rgba(42, 35, 29, 0.08);
}