/**
 * FondiSoft Design System - CSS Custom Properties
 * Alle Design-Tokens zentral definiert
 *
 * Verwendung: var(--fs-color-primary)
 * Prefix: --fs- (FondiSoft)
 */

:root {
    /* ============================================
       FARBEN - Corporate Identity
       ============================================ */

    /* Primary (FondiSoft Blau) */
    --fs-color-primary: #026DA3;
    --fs-color-primary-dark: #025580;
    --fs-color-primary-darker: #01405F;
    --fs-color-primary-light: #0389CC;
    --fs-color-primary-lighter: #03A3F4;

    /* Primary mit Alpha */
    --fs-color-primary-10: rgba(2, 109, 163, 0.1);
    --fs-color-primary-20: rgba(2, 109, 163, 0.2);
    --fs-color-primary-50: rgba(2, 109, 163, 0.5);

    /* Secondary (Helles Blau) */
    --fs-color-secondary: #66B3D9;
    --fs-color-secondary-dark: #4DA3CC;
    --fs-color-secondary-light: #8DC7E6;

    /* Accent (Orange - Komplementärfarbe) */
    --fs-color-accent: #F59E0B;
    --fs-color-accent-dark: #D97706;
    --fs-color-accent-light: #FBBF24;

    /* Neutral (Grautöne) */
    --fs-color-neutral-50: #F9FAFB;
    --fs-color-neutral-100: #F3F4F6;
    --fs-color-neutral-200: #E5E7EB;
    --fs-color-neutral-300: #D1D5DB;
    --fs-color-neutral-400: #9CA3AF;
    --fs-color-neutral-500: #6B7280;
    --fs-color-neutral-600: #4B5563;
    --fs-color-neutral-700: #374151;
    --fs-color-neutral-800: #1F2937;
    --fs-color-neutral-900: #111827;

    /* Text */
    --fs-color-text: #111827;
    --fs-color-text-secondary: #6B7280;
    --fs-color-text-muted: #9CA3AF;
    --fs-color-text-inverse: #FFFFFF;

    /* Backgrounds */
    --fs-color-bg: #FFFFFF;
    --fs-color-bg-alt: #F9FAFB;
    --fs-color-bg-subtle: #F3F4F6;
    --fs-color-bg-dark: #1F2937;
    --fs-color-bg-darker: #111827;

    /* Borders */
    --fs-color-border: #E5E7EB;
    --fs-color-border-dark: #D1D5DB;

    /* Status Colors */
    --fs-color-success: #10B981;
    --fs-color-success-light: #D1FAE5;
    --fs-color-success-dark: #059669;

    --fs-color-error: #EF4444;
    --fs-color-error-light: #FEE2E2;
    --fs-color-error-dark: #DC2626;

    --fs-color-warning: #F59E0B;
    --fs-color-warning-light: #FEF3C7;
    --fs-color-warning-dark: #D97706;

    --fs-color-info: #3B82F6;
    --fs-color-info-light: #DBEAFE;
    --fs-color-info-dark: #2563EB;

    /* ============================================
       TYPOGRAFIE
       ============================================ */

    /* Font Families */
    --fs-font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --fs-font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Font Sizes */
    --fs-text-xs: 0.75rem;      /* 12px */
    --fs-text-sm: 0.875rem;     /* 14px */
    --fs-text-base: 1rem;       /* 16px */
    --fs-text-lg: 1.125rem;     /* 18px */
    --fs-text-xl: 1.25rem;      /* 20px */
    --fs-text-2xl: 1.5rem;      /* 24px */
    --fs-text-3xl: 1.875rem;    /* 30px */
    --fs-text-4xl: 2.25rem;     /* 36px */
    --fs-text-5xl: 3rem;        /* 48px */
    --fs-text-6xl: 3.75rem;     /* 60px */

    /* Font Weights (Lato: 300, 400, 700, 900) */
    --fs-font-light: 300;
    --fs-font-regular: 400;
    --fs-font-medium: 400;
    --fs-font-semibold: 700;
    --fs-font-bold: 700;
    --fs-font-black: 900;

    /* Line Heights */
    --fs-leading-none: 1;
    --fs-leading-tight: 1.25;
    --fs-leading-snug: 1.375;
    --fs-leading-normal: 1.5;
    --fs-leading-relaxed: 1.625;
    --fs-leading-loose: 2;

    /* Letter Spacing */
    --fs-tracking-tight: -0.025em;
    --fs-tracking-normal: 0;
    --fs-tracking-wide: 0.025em;
    --fs-tracking-wider: 0.05em;

    /* ============================================
       SPACING (8px Base)
       ============================================ */

    --fs-space-0: 0;
    --fs-space-1: 0.25rem;      /* 4px - 0.5x */
    --fs-space-2: 0.5rem;       /* 8px - 1x */
    --fs-space-3: 0.75rem;      /* 12px - 1.5x */
    --fs-space-4: 1rem;         /* 16px - 2x */
    --fs-space-5: 1.25rem;      /* 20px - 2.5x */
    --fs-space-6: 1.5rem;       /* 24px - 3x */
    --fs-space-8: 2rem;         /* 32px - 4x */
    --fs-space-10: 2.5rem;      /* 40px - 5x */
    --fs-space-12: 3rem;        /* 48px - 6x */
    --fs-space-16: 4rem;        /* 64px - 8x */
    --fs-space-20: 5rem;        /* 80px - 10x */
    --fs-space-24: 6rem;        /* 96px - 12x */
    --fs-space-32: 8rem;        /* 128px - 16x */

    /* ============================================
       LAYOUT
       ============================================ */

    --fs-container-sm: 640px;
    --fs-container-md: 768px;
    --fs-container-lg: 1024px;
    --fs-container-xl: 1280px;
    --fs-container-2xl: 1536px;

    --fs-header-height: 80px;
    --fs-header-height-mobile: 64px;

    /* ============================================
       BORDER RADIUS
       ============================================ */

    --fs-radius-none: 0;
    --fs-radius-sm: 0.25rem;    /* 4px */
    --fs-radius-md: 0.5rem;     /* 8px */
    --fs-radius-lg: 0.75rem;    /* 12px */
    --fs-radius-xl: 1rem;       /* 16px */
    --fs-radius-2xl: 1.5rem;    /* 24px */
    --fs-radius-full: 9999px;

    /* ============================================
       SCHATTEN
       ============================================ */

    --fs-shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --fs-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --fs-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --fs-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --fs-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --fs-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Colored Shadows */
    --fs-shadow-primary: 0 4px 14px 0 rgba(2, 109, 163, 0.3);
    --fs-shadow-accent: 0 4px 14px 0 rgba(245, 158, 11, 0.3);

    /* Inner Shadow */
    --fs-shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

    /* ============================================
       ÜBERGÄNGE
       ============================================ */

    --fs-transition-fastest: 75ms;
    --fs-transition-faster: 100ms;
    --fs-transition-fast: 150ms;
    --fs-transition-normal: 200ms;
    --fs-transition-slow: 300ms;
    --fs-transition-slower: 400ms;
    --fs-transition-slowest: 500ms;

    /* Easing */
    --fs-ease-linear: linear;
    --fs-ease-in: cubic-bezier(0.4, 0, 1, 1);
    --fs-ease-out: cubic-bezier(0, 0, 0.2, 1);
    --fs-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --fs-ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Combined Transitions */
    --fs-transition-base: var(--fs-transition-normal) var(--fs-ease-in-out);
    --fs-transition-colors: color var(--fs-transition-fast), background-color var(--fs-transition-fast), border-color var(--fs-transition-fast);

    /* ============================================
       Z-INDEX
       ============================================ */

    --fs-z-dropdown: 100;
    --fs-z-sticky: 200;
    --fs-z-fixed: 300;
    --fs-z-modal-backdrop: 400;
    --fs-z-modal: 500;
    --fs-z-popover: 600;
    --fs-z-tooltip: 700;
    --fs-z-toast: 800;

    /* ============================================
       BREAKPOINTS (für JS)
       ============================================ */

    --fs-breakpoint-sm: 640px;
    --fs-breakpoint-md: 768px;
    --fs-breakpoint-lg: 1024px;
    --fs-breakpoint-xl: 1280px;
    --fs-breakpoint-2xl: 1536px;
}

/* ============================================
   DARK MODE OVERRIDES
   ============================================ */
[data-theme="dark"],
.dark {
    --fs-color-text: #F9FAFB;
    --fs-color-text-secondary: #D1D5DB;
    --fs-color-text-muted: #9CA3AF;

    --fs-color-bg: #111827;
    --fs-color-bg-alt: #1F2937;
    --fs-color-bg-subtle: #374151;

    --fs-color-border: #374151;
    --fs-color-border-dark: #4B5563;

    --fs-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --fs-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --fs-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}