/* ===================================================
   Design Tokens
   Transizione Digitale ARG
   Palette derivata dal logo Asso Revolution Group
   =================================================== */

:root {
  /* ---- Colors ---- */
  /* Primary — Blu petrolio (dal testo "ASSO" nel logo) */
  --color-primary: #1B4F72;
  --color-primary-dark: #154360;
  --color-primary-light: #2E86C1;

  /* Accent — Dall'arancione del logo */
  --color-accent: #E67E22;
  --color-accent-hover: #D35400;

  /* Secondary accents — Dalle forme colorate del logo */
  --color-blue: #3498DB;
  --color-red: #E74C3C;
  --color-green: #8BC34A;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-surface: #FAFBFC;
  --color-surface-alt: #F0F3F5;
  --color-border: #E1E8ED;
  --color-text: #1C2833;
  --color-text-muted: #5D6D7E;
  --color-text-light: #85929E;
  --color-dark: #1C2833;
  --color-dark-alt: #2C3E50;

  /* Feedback */
  --color-success: #27AE60;
  --color-error: #E74C3C;

  /* ---- Typography ---- */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-hero: clamp(2.25rem, 5vw, 3.5rem);
  --fs-h1: clamp(1.75rem, 4vw, 2.75rem);
  --fs-h2: clamp(1.5rem, 3.5vw, 2.25rem);
  --fs-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --fs-h4: clamp(1.1rem, 2vw, 1.375rem);
  --fs-body: clamp(0.95rem, 1.2vw, 1.0625rem);
  --fs-body-lg: clamp(1.05rem, 1.4vw, 1.1875rem);
  --fs-small: clamp(0.8rem, 1vw, 0.875rem);
  --fs-xs: 0.75rem;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.2;
  --lh-normal: 1.6;
  --lh-relaxed: 1.8;

  /* ---- Spacing ---- */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4rem;     /* 64px */
  --space-4xl: 6rem;     /* 96px */
  --space-5xl: 8rem;     /* 128px */

  /* ---- Layout ---- */
  --container-max: 1200px;
  --container-narrow: 900px;
  --container-padding: 1.5rem;

  /* ---- Borders ---- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 3px rgba(28, 40, 51, 0.06), 0 1px 2px rgba(28, 40, 51, 0.04);
  --shadow-md: 0 4px 12px rgba(28, 40, 51, 0.08), 0 2px 4px rgba(28, 40, 51, 0.04);
  --shadow-lg: 0 10px 30px rgba(28, 40, 51, 0.1), 0 4px 8px rgba(28, 40, 51, 0.05);
  --shadow-xl: 0 20px 50px rgba(28, 40, 51, 0.12), 0 8px 16px rgba(28, 40, 51, 0.06);

  /* ---- Transitions ---- */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* ---- Gradients ---- */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, #F39C12 100%);
  --gradient-hero: linear-gradient(135deg, rgba(27, 79, 114, 0.92) 0%, rgba(46, 134, 193, 0.85) 100%);
  --gradient-dark: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
}