/* ==========================================
   Design System - CSS Custom Properties
   ========================================== */

:root {
    /* ===== THEME CONFIGURATION ===== */
    /* Ändere diese Werte um verschiedene Blautöne zu testen */
    --theme-blue-primary: #0077FF;      /* Hauptakzent-Blau */
    --theme-blue-secondary: #00D4FF;    /* Sekundär-Blau (Cyan) */
    --theme-blue-dark: #0055CC;         /* Dunkles Blau */
    --theme-blue-hover: #0066DD;        /* Hover-Zustand */
    /* ================================ */

    /* ===== Color Palette ===== */
    
    /* Primary - Deep Teal / Petrol */
    --color-primary-50: #e6f0ff;
    --color-primary-100: #b3d1ff;
    --color-primary-200: #80b3ff;
    --color-primary-300: #4d94ff;
    --color-primary-400: #2680ff;
    --color-primary: #0066CC;
    --color-primary-600: #0055AA;
    --color-primary-700: #004488;
    --color-primary-800: #003366;
    --color-primary-900: #002244;
    
    /* Accent - Warm Coral (bleibt für Kontrast) */
    --color-accent-50: #fff0ed;
    --color-accent-100: #ffd4cc;
    --color-accent-200: #ffb8ab;
    --color-accent-300: #ff9c8a;
    --color-accent: #e85a4f;
    --color-accent-600: #d44a3f;
    --color-accent-700: #b03a31;
    --color-accent-800: #8c2a23;
    
    /* Neon CTA - Jetzt Blau-basiert */
    --color-neon: var(--theme-blue-primary);
    --color-neon-hover: var(--theme-blue-hover);
    --color-neon-glow: rgba(0, 119, 255, 0.4);
    --color-neon-dark: var(--theme-blue-dark);
    
    /* Futuristische Neon-Farben - Blau-Palette */
    --color-neon-cyan: var(--theme-blue-secondary);
    --color-neon-cyan-glow: rgba(0, 212, 255, 0.5);
    --color-neon-blue: var(--theme-blue-primary);
    --color-neon-blue-glow: rgba(0, 119, 255, 0.5);
    --color-neon-blue-light: #0099FF;
    --color-neon-blue-light-glow: rgba(0, 153, 255, 0.5);
    --color-neon-blue-dark: var(--theme-blue-dark);
    --color-neon-blue-dark-glow: rgba(0, 85, 204, 0.5);
    --color-neon-teal: #00BFFF;
    --color-neon-teal-glow: rgba(0, 191, 255, 0.5);
    --color-neon-orange: #FF6B35;
    --color-neon-orange-glow: rgba(255, 107, 53, 0.5);
    
    /* Futuristische Gradienten - Komplett Blau-basiert */
    --gradient-neon-1: linear-gradient(135deg, var(--theme-blue-primary) 0%, var(--theme-blue-secondary) 100%);
    --gradient-neon-2: linear-gradient(135deg, var(--color-neon-blue-light) 0%, var(--theme-blue-primary) 50%, var(--theme-blue-secondary) 100%);
    --gradient-neon-3: linear-gradient(135deg, var(--theme-blue-primary) 0%, var(--theme-blue-secondary) 50%, var(--color-neon-blue-light) 100%);
    --gradient-cyber: linear-gradient(135deg, var(--theme-blue-dark) 0%, var(--theme-blue-primary) 25%, var(--color-neon-blue-light) 50%, var(--theme-blue-secondary) 75%, #00BFFF 100%);
    
    /* Neutrals - Warm Grays */
    --color-neutral-50: #fafaf9;
    --color-neutral-100: #f5f4f2;
    --color-neutral-200: #e8e6e3;
    --color-neutral-300: #d4d1cc;
    --color-neutral-400: #a8a29e;
    --color-neutral-500: #78716c;
    --color-neutral-600: #57534e;
    --color-neutral-700: #44403c;
    --color-neutral-800: #292524;
    --color-neutral-900: #1c1917;
    
    /* Semantic Colors */
    --color-background: #fefdfb;
    --color-surface: #ffffff;
    --color-text: var(--color-neutral-800);
    --color-text-muted: var(--color-neutral-500);
    --color-text-light: var(--color-neutral-400);
    --color-border: var(--color-neutral-200);
    
    /* ===== Typography ===== */
    
    /* Font Families */
    --font-heading: 'Instrument Serif', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3.25rem);
    --text-4xl: clamp(2.5rem, 1.75rem + 3.75vw, 4.5rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 6rem);
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Line Heights */
    --leading-tight: 1.15;
    --leading-snug: 1.3;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;
    
    /* Letter Spacing */
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.02em;
    --tracking-wider: 0.05em;
    
    /* ===== Spacing ===== */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Section Spacing */
    --section-padding: clamp(4rem, 8vw, 8rem);
    
    /* ===== Layout ===== */
    --container-max: 1200px;
    --container-padding: clamp(1.25rem, 5vw, 3rem);
    
    /* ===== Borders & Radius ===== */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* ===== Shadows ===== */
    --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(28, 25, 23, 0.07), 
                 0 2px 4px -1px rgba(28, 25, 23, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(28, 25, 23, 0.08), 
                 0 4px 6px -2px rgba(28, 25, 23, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(28, 25, 23, 0.1), 
                 0 10px 10px -5px rgba(28, 25, 23, 0.04);
    --shadow-glow: 0 0 40px rgba(13, 115, 119, 0.15);
    
    /* Futuristische Glow-Effekte - Blau-basiert */
    --shadow-neon-green: 0 0 20px rgba(0, 119, 255, 0.4), 0 0 40px rgba(0, 119, 255, 0.2), 0 0 60px rgba(0, 119, 255, 0.1);
    --shadow-neon-cyan: 0 0 20px rgba(0, 212, 255, 0.4), 0 0 40px rgba(0, 212, 255, 0.2), 0 0 60px rgba(0, 212, 255, 0.1);
    --shadow-neon-blue: 0 0 20px rgba(0, 119, 255, 0.4), 0 0 40px rgba(0, 119, 255, 0.2), 0 0 60px rgba(0, 119, 255, 0.1);
    --shadow-neon-blue-light: 0 0 20px rgba(0, 153, 255, 0.4), 0 0 40px rgba(0, 153, 255, 0.2), 0 0 60px rgba(0, 153, 255, 0.1);
    --shadow-neon-teal: 0 0 20px rgba(0, 212, 255, 0.4), 0 0 40px rgba(0, 212, 255, 0.2), 0 0 60px rgba(0, 212, 255, 0.1);
    --shadow-neon-multi: 0 0 30px rgba(0, 119, 255, 0.3), 0 0 60px rgba(0, 212, 255, 0.2), 0 0 90px rgba(0, 153, 255, 0.1);
    
    /* ===== Transitions ===== */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* ===== Z-Index ===== */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
}

/* ===== Dark Mode ===== */
[data-theme="dark"] {
    /* Background Colors */
    --color-background: #0a0e1a;
    --color-surface: #141b2d;
    --color-text: #f3f4f6;
    --color-text-muted: #d1d5db;
    --color-text-light: #9ca3af;
    --color-border: #1f2937;
    
    /* Neutral Colors - Darker */
    --color-neutral-50: #1f2937;
    --color-neutral-100: #374151;
    --color-neutral-200: #4b5563;
    --color-neutral-300: #6b7280;
    --color-neutral-400: #9ca3af;
    --color-neutral-500: #d1d5db;
    --color-neutral-600: #e5e7eb;
    --color-neutral-700: #f3f4f6;
    --color-neutral-800: #f9fafb;
    --color-neutral-900: #ffffff;
    
    /* Shadows - Lighter for dark mode */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 
                 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 
                 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 
                 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(13, 115, 119, 0.3);
    
    /* Glassmorphism - Darker */
    --glass-background: rgba(20, 27, 45, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* Dark Mode Support (Optional - System Preference) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        /* Automatisch Dark Mode wenn System es bevorzugt und kein manueller Modus gesetzt */
    }
}

/* ===== Dark Section Theme ===== */
.dark-section {
    --section-bg: #0a1628;
    --section-surface: rgba(255, 255, 255, 0.05);
    --section-text: #ffffff;
    --section-text-muted: rgba(255, 255, 255, 0.7);
    --section-border: rgba(255, 255, 255, 0.1);
}

/* ===== Glassmorphism Variables ===== */
:root {
    --glass-background: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 12px;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* ===== Animation Timing Functions ===== */
:root {
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-in-out-expo: cubic-bezier(0.87, 0, 0.13, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}