/* file: flowtitude.css */

@layer base {
  :root {
    /* ============================================================
       1) RANGES / KNOBS (configuration only)
       These variables are the "inputs" that define the system.
       ============================================================ */

    /* Viewport range used for fluid interpolation */
    --viewport-min: 410px;
    --viewport-max: 1280px;

    /* Base typography (size range + scaling ratio range) */
    --ft-text-min: 1rem;
    --ft-text-max: 1.125rem;

    --ft-type-step-min: 1.125;
    --ft-type-step-max: 1.2;

    /* Global text multiplier (density / compact mode) */
    --ft-text-factor: 1;

    /* Base spacing (size range + scaling ratio range) */
    --ft-space-min: 0.5rem;
    --ft-space-max: 1.5rem;

    /* Single fluid ratio used to step spacing up/down */
    --ft-space-step-min: 1.3;
    --ft-space-step-max: 1.5;

    /* Global spacing multiplier */
    --ft-space-factor: 1;

    /* Semantic multipliers (used to build meaningful tokens) */
    --ft-space-factor-inner: 0.5;
    --ft-space-factor-content: 0.75;
    --ft-space-factor-stack: 1;
    --ft-space-factor-block: 1;
    --ft-space-factor-columns: 1.5;
    --ft-space-factor-section: 3;
    --ft-space-factor-hero: 4.5;

    /* Layout defaults */
    --ft-container: min(var(--container-7xl), 90%);
    --ft-padding-content-x: 1rem;
    --ft-padding-content-y: var(--spacing-section);
    --ft-gap-content: var(--spacing-block);

    /* Base colors (mapped to fg/bg tokens inside @theme) */
    --ft-color-text: #000;
    --ft-color-background: #fff;

    /* Card widths (utility-friendly sizes) */
    --ft-card-xs: 12rem;
    --ft-card-sm: 14rem;
    --ft-card-md: 18rem;
    --ft-card-lg: 24rem;
    --ft-card-xl: 36rem;

    /* ============================================================
       2) DERIVED VALUES (computed from knobs)
       These should not be edited directly.
       ============================================================ */

    /* Fluid interpolation helper: (100vw - min) / (max - min) */
    --ft-fluid-t: calc(
      (100vw - var(--viewport-min)) /
      (var(--viewport-max) - var(--viewport-min))
    );

    /* Fluid base text size */
    --ft-text-value: clamp(
      var(--ft-text-min),
      calc(var(--ft-text-min) + (var(--ft-text-max) - var(--ft-text-min)) * var(--ft-fluid-t)),
      var(--ft-text-max)
    );

    /* Fluid type scaling ratio */
    --ft-type-step: clamp(
      var(--ft-type-step-min),
      calc(var(--ft-type-step-min) + (var(--ft-type-step-max) - var(--ft-type-step-min)) * var(--ft-fluid-t)),
      var(--ft-type-step-max)
    );

    /* Fluid base spacing value */
    --ft-space-value: clamp(
      var(--ft-space-min),
      calc(var(--ft-space-min) + (var(--ft-space-max) - var(--ft-space-min)) * var(--ft-fluid-t)),
      var(--ft-space-max)
    );

    /* Fluid spacing scaling ratio */
    --ft-space-step: clamp(
      var(--ft-space-step-min),
      calc(var(--ft-space-step-min) + (var(--ft-space-step-max) - var(--ft-space-step-min)) * var(--ft-fluid-t)),
      var(--ft-space-step-max)
    );
  }
}

@theme {

  /* ============================================================
     FONTS
     ============================================================ */
    --font-body: Arial, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --font-display: 'Playfair Display',serif;

    /* ============================================================
       PALETTE (kept as-is)
       Note: pick whether --color-primary should be a real "primary"
       (e.g. 600/700) or a softer default (e.g. 100).
       ============================================================ */
    --color-secondary-50: oklch(0.969 0.013 82.37);
    --color-secondary-100: oklch(0.939 0.026 84.57);
    --color-secondary-200: oklch(0.877 0.053 82.24);
    --color-secondary-300: oklch(0.817 0.078 82.63);
    --color-secondary-400: oklch(0.757 0.101 82.19);
    --color-secondary-500: oklch(0.696 0.12 79.95);
    --color-secondary-600: oklch(0.625 0.107 80.42);
    --color-secondary-700: oklch(0.55 0.093 79.98);
    --color-secondary-800: oklch(0.472 0.078 80.23);
    --color-secondary-900: oklch(0.391 0.063 79.39);
    --color-secondary-950: oklch(0.342 0.054 79.67);

    --color-primary-50: oklch(0.948 0.018 250.58);
    --color-primary-100: oklch(0.903 0.034 253.71);
    --color-primary-200: oklch(0.809 0.069 252.65);
    --color-primary-300: oklch(0.707 0.109 253.06);
    --color-primary-400: oklch(0.615 0.146 254.37);
    --color-primary-500: oklch(0.525 0.146 255.03);
    --color-primary-600: oklch(0.427 0.115 254.84);
    --color-primary-700: oklch(0.385 0.101 254.47);
    --color-primary-800: oklch(0.347 0.09 254.75);
    --color-primary-900: oklch(0.299 0.073 254.25);
    --color-primary-950: oklch(0.279 0.068 254.49);

    /* Flat defaults (choose the ones you want as "brand defaults") */
    --color-secondary: var(--color-secondary-500);
    --color-primary: var(--color-primary-600);

    /* ============================================================
       TYPOGRAPHY (leading + sizes)
       ============================================================ */
  
    --leading-none: 1em;
    --leading-tight: 1.2em;
    --leading-snug: 1.375em;
    --leading-normal: 1.5em;
    --leading-relaxed: 1.625em;
    --leading-loose: 2em;

    --text-base: calc(var(--ft-text-value) * var(--ft-text-factor));
    --text-sm: calc(var(--text-base) / var(--ft-type-step));
    --text-xs: calc(var(--text-sm) / var(--ft-type-step));

    --text-lg: calc(var(--text-base) * var(--ft-type-step));
    --text-xl: calc(var(--text-lg) * var(--ft-type-step));
    --text-2xl: calc(var(--text-xl) * var(--ft-type-step));
    --text-3xl: calc(var(--text-2xl) * var(--ft-type-step));
    --text-4xl: calc(var(--text-3xl) * var(--ft-type-step));
    --text-5xl: calc(var(--text-4xl) * var(--ft-type-step));
    --text-6xl: calc(var(--text-5xl) * var(--ft-type-step));
    --text-7xl: calc(var(--text-6xl) * var(--ft-type-step));
    --text-8xl: calc(var(--text-7xl) * var(--ft-type-step));
    --text-9xl: calc(var(--text-8xl) * var(--ft-type-step));

    /* ============================================================
       SPACING (base + fluid scale + semantic tokens)
       Tailwind v4 will generate utilities like: p-inner, gap-content, etc.
       ============================================================ */
    --spacing: 0.25rem;

    /* Fluid scale (xs → 2xl) around ft-space-value */
    --spacing-fluid-md: calc(var(--ft-space-value) * var(--ft-space-factor));

    --spacing-fluid-sm: calc(var(--spacing-fluid-md) / var(--ft-space-step));
    --spacing-fluid-xs: calc(var(--spacing-fluid-sm) / var(--ft-space-step));

    --spacing-fluid-lg: calc(var(--spacing-fluid-md) * var(--ft-space-step));
    --spacing-fluid-xl: calc(var(--spacing-fluid-lg) * var(--ft-space-step));
    --spacing-fluid-2xl: calc(var(--spacing-fluid-xl) * var(--ft-space-step));

    /* Semantic tokens */
    --spacing-inner: calc(var(--spacing-fluid-xs) * var(--ft-space-factor-inner));
    --spacing-content: calc(var(--spacing-fluid-sm) * var(--ft-space-factor-content));
    --spacing-stack: calc(var(--spacing-fluid-sm) * var(--ft-space-factor-stack));
    --spacing-block: calc(var(--spacing-fluid-md) * var(--ft-space-factor-block));
    --spacing-columns: calc(var(--spacing-fluid-md) * var(--ft-space-factor-columns));
    --spacing-section: calc(var(--spacing-fluid-xl) * var(--ft-space-factor-section));
    --spacing-hero: calc(var(--spacing-fluid-2xl) * var(--ft-space-factor-hero));

   /* ============================================================
      RADIUS 
      ============================================================ */
    --radius-button: var(--radius-sm);
    --radius-card: var(--radius-md);
    --radius-section: var(--radius-md);

    /* ============================================================
       ASPECT RATIOS
       ============================================================ */
    --aspect-rrss: 1.91 / 1;
    --aspect-wide: 18 / 8;
    --aspect-ultrawide: 18 / 5;
    --aspect-golden: 1.618 / 1;
    --aspect-portrait: 3 / 4;
    --aspect-landscape: 4 / 3;
}