/* =========================================
   VARIABLES.CSS - Design Tokens
   ========================================= */

:root {
    /* ===== COLORS ===== */
    
    /* Monochrome */
    --black: #0A0A0A;
    --white: #FAFAFA;
    --gray-50: #F5F5F5;
    --gray-100: #E8E8E8;
    --gray-200: #D1D1D1;
    --gray-300: #B0B0B0;
    --gray-400: #8A8A8A;
    --gray-500: #6A6A6A;
    --gray-600: #4A4A4A;
    --gray-700: #2A2A2A;
    --gray-800: #1A1A1A;
    --gray-900: #0F0F0F;
    
    /* Accent Colors */
    --accent-blue: #2563EB;
    --accent-blue-dark: #1D4ED8;
    --accent-cyan: #06B6D4;
    --accent-cyan-dark: #0891B2;
    
    /* Semantic Colors - Light Mode */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --bg-tertiary: var(--gray-100);
    --text-primary: var(--black);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-400);
    --border-color: var(--gray-200);
    --card-bg: var(--white);
    --hover-bg: var(--gray-50);
    --scroll-thumb: var(--gray-300);
    --scroll-thumb-hover: var(--gray-400);
    
    /* ===== TYPOGRAPHY ===== */
    
    /* Font Families */
    --font-display: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
    
    /* Font Sizes - Fluid Typography */
    --text-hero: clamp(3.5rem, 10vw, 8rem);
    --text-h1: clamp(2.5rem, 7vw, 5rem);
    --text-h2: clamp(2rem, 5vw, 3.5rem);
    --text-h3: clamp(1.5rem, 3vw, 2.25rem);
    --text-h4: clamp(1.25rem, 2.5vw, 1.875rem);
    --text-body-lg: clamp(1.125rem, 2vw, 1.375rem);
    --text-body: clamp(1rem, 1.5vw, 1.125rem);
    --text-small: 0.875rem;
    --text-xs: 0.75rem;
    
    /* Font Weights */
    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    
    /* Line Heights */
    --lh-tight: 1.1;
    --lh-snug: 1.3;
    --lh-normal: 1.5;
    --lh-relaxed: 1.65;
    --lh-loose: 1.8;
    
    /* Letter Spacing */
    --ls-tight: -0.02em;
    --ls-normal: 0;
    --ls-wide: 0.025em;
    --ls-wider: 0.05em;
    
    /* ===== SPACING ===== */
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
    --space-5xl: 12rem;
    
    /* Container Padding */
    --padding-container: clamp(2rem, 5vw, 8rem);
    --padding-section-y: clamp(6rem, 15vh, 12rem);
    
    /* ===== LAYOUT ===== */
    
    /* Breakpoints (for reference in media queries) */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    
    /* Max Widths */
    --container-max: 1800px;
    --content-max: 1200px;
    --text-max: 65ch;
    
    /* ===== BORDERS ===== */
    
    --border-width: 1px;
    --border-width-thick: 2px;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 14px;
    --border-radius-xl: 20px;
    --border-radius-full: 9999px;
    
    /* ===== SHADOWS ===== */
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 3px 8px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 24px 48px rgba(0, 0, 0, 0.12);
    
    /* ===== TRANSITIONS ===== */
    
    /* Easing Functions */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Durations */
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;
    --duration-slower: 700ms;
    
    /* Combined Transitions */
    --transition-base: all var(--duration-base) var(--ease-smooth);
    --transition-fast: all var(--duration-fast) var(--ease-out);
    --transition-slow: all var(--duration-slow) var(--ease-smooth);
    
    /* ===== Z-INDEX SCALE ===== */
    
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-toast: 500;
    --z-loader: 9999;
    
    /* ===== MISC ===== */
    
    --blur-amount: 20px;
    --backdrop-blur: blur(var(--blur-amount));
}

/* ===== DARK MODE (HELLER) ===== */

body.dark {
    /* Hellerer Dark Mode */
    --bg-primary: #1A1A1A;
    --bg-secondary: #222222;
    --bg-tertiary: #2A2A2A;
    --text-primary: #F5F5F5;
    --text-secondary: #B8B8B8;
    --text-tertiary: #8A8A8A;
    --border-color: #3A3A3A;
    --card-bg: #252525;
    --hover-bg: #2F2F2F;
    --scroll-thumb: #444444;
    --scroll-thumb-hover: #555555;
    
    /* Angepasste Schatten für helleren Dark Mode */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 3px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.6);
    --shadow-2xl: 0 24px 48px rgba(0, 0, 0, 0.7);
}

/* ===== HIGH DPI DISPLAYS ===== */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    :root {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* ===== PRINT STYLES ===== */

@media print {
    :root {
        --bg-primary: white;
        --bg-secondary: white;
        --text-primary: black;
        --text-secondary: #333;
    }
}