/* ========================================================================== 
   ZELSEPTIK DESIGN TOKENS
   File: tokens.css
   --------------------------------------------------------------------------
   Новая система токенов + слой совместимости со старым CSS.
   Имена HTML-классов не меняются.
   ========================================================================== */

:root {
  /* COLORS: brand */
  --color-primary: #16a34a;
  --color-primary-hover: #15803d;
  --color-primary-dark: #166534;
  --color-primary-deep: #022c22;
  --color-primary-soft: #f0fdf4;
  --color-primary-soft-strong: #dcfce7;

  --color-secondary: #0f172a;
  --color-secondary-soft: #1e293b;

  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-soft: #eff6ff;

  /* COLORS: surfaces */
  --color-bg-page: #f8fafc;
  --color-bg-base: #ffffff;
  --color-bg-muted: #f1f5f9;
  --color-bg-disabled: #e2e8f0;

  /* COLORS: text */
  --color-text-main: #0f172a;
  --color-text-secondary: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-text-inverse: #ffffff;

  /* COLORS: borders */
  --color-border-base: #e2e8f0;
  --color-border-soft: rgba(226, 232, 240, 0.8);
  --color-border-strong: #cbd5e1;
  --color-border-focus: var(--color-primary);

  /* STATES */
  --color-success: #22c55e;
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-warning: #eab308;
  --color-warning-bg: #fefce8;
  --color-warning-border: #fef08a;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  --color-info: #2563eb;
  --color-info-bg: #eff6ff;
  --color-info-border: #bfdbfe;

  /* TYPOGRAPHY */
  --font-family-base: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-family-heading: "Unbounded", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-family-logo: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --font-size-2xs: 0.5625rem; /* 9px */
  --font-size-xs: 0.625rem;   /* 10px */
  --font-size-sm: 0.75rem;    /* 12px */
  --font-size-md: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 2rem;      /* 32px */
  --font-size-3xl: 2.5rem;    /* 40px */
  --font-size-4xl: 3rem;      /* 48px */

  --line-height-tight: 1.15;
  --line-height-heading: 1.25;
  --line-height-base: 1.625;
  --line-height-loose: 1.7;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extra-bold: 800;
  --font-weight-black: 850;

  /* SPACING: 8px grid */
  --space-2xs: 0.25rem;  /* 4px */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 0.75rem;   /* 12px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 2.5rem;   /* 40px */
  --space-3xl: 3rem;     /* 48px */
  --space-4xl: 4rem;     /* 64px */
  --space-5xl: 4.5rem;   /* 72px */
  --space-6xl: 5rem;     /* 80px */

  /* RADIUS */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-3xl: 24px;
  --radius-full: 9999px;

  /* SHADOWS */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);
  --shadow-premium: 0 12px 40px -8px rgba(15, 23, 42, 0.06), 0 4px 20px -4px rgba(15, 23, 42, 0.03);
  --shadow-glow-primary: 0 8px 32px -4px rgba(22, 163, 74, 0.15);
  --shadow-glow-soft: 0 0 60px -10px rgba(22, 163, 74, 0.08);

  /* CONTAINERS */
  --container-max: 1280px;
  --container-narrow: 920px;
  --container-wide: 1360px;
  --container-padding-mobile: 1.5rem;
  --container-padding-tablet: 1.5rem;
  --container-padding-desktop: 1.5rem;

  /* Z-INDEX */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-header: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-tooltip: 600;

  /* TRANSITIONS */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* COMPATIBILITY LAYER: старые переменные */
  --font-logo: var(--font-family-logo);
  --font-heading: var(--font-family-heading);
  --font-sans: var(--font-family-base);

  --color-brand-green-50: var(--color-primary-soft);
  --color-brand-green-100: var(--color-primary-soft-strong);
  --color-brand-green-600: var(--color-primary);
  --color-brand-green-700: var(--color-primary-hover);
  --color-brand-green-800: var(--color-primary-dark);
  --color-brand-green-950: var(--color-primary-deep);
  --color-brand-accent-blue: var(--color-accent);

  --color-graphite: var(--color-text-main);
  --color-navy: var(--color-text-secondary);
  --color-slate: var(--color-text-muted);
  --color-light-bg: var(--color-bg-page);
  --color-white: var(--color-bg-base);
  --color-border: var(--color-border-soft);

  --shadow-glow-emerald: var(--shadow-glow-primary);
}