/* ==========================================================================
   VOLTADO.DE – Design Tokens
   Brand Identity System · Konzept A: Electric Blue
   ========================================================================== */

:root {
   /* ========================================================================
     COLOR SYSTEM
     ======================================================================== */

   /* --- Primary: Electric Blue --- */
   /* Clean, technisch, vertrauenswürdig – Apple-inspired, maximale Seriosität */
   --color-primary-50: #eff6ff;
   --color-primary-100: #dbeafe;
   --color-primary-200: #bfdbfe;
   --color-primary-300: #93c5fd;
   --color-primary-400: #60a5fa;
   --color-primary-500: #3b82f6;
   /* Main Primary */
   --color-primary-600: #2563eb;
   /* Buttons, Links */
   --color-primary-700: #1d4ed8;
   --color-primary-800: #1e40af;
   --color-primary-900: #1e3a8a;
   --color-primary-950: #172554;

   /* --- Secondary / Accent: Warm Orange --- */
   /* Energetisch, warm, konvertierend – für CTAs und Highlights */
   --color-secondary-50: #fff7ed;
   --color-secondary-100: #ffedd5;
   --color-secondary-200: #fed7aa;
   --color-secondary-300: #fdba74;
   --color-secondary-400: #fb923c;
   --color-secondary-500: #f97316;
   /* Main Secondary */
   --color-secondary-600: #ea580c;
   --color-secondary-700: #c2410c;
   --color-secondary-800: #9a3412;
   --color-secondary-900: #7c2d12;
   --color-secondary-950: #431407;

   /* --- Neutral: Slate --- */
   /* Clean, professional, modern */
   --color-neutral-0: #ffffff;
   --color-neutral-50: #f8fafc;
   --color-neutral-100: #f1f5f9;
   --color-neutral-200: #e2e8f0;
   --color-neutral-300: #cbd5e1;
   --color-neutral-400: #94a3b8;
   --color-neutral-500: #64748b;
   --color-neutral-600: #475569;
   --color-neutral-700: #334155;
   --color-neutral-800: #1e293b;
   --color-neutral-900: #0f172a;
   --color-neutral-950: #020617;

   /* --- Semantic Colors --- */
   --color-success-50: #f0fdf4;
   --color-success-100: #dcfce7;
   --color-success-500: #22c55e;
   --color-success-600: #16a34a;
   --color-success-700: #15803d;

   --color-warning-50: #fffbeb;
   --color-warning-100: #fef3c7;
   --color-warning-500: #f59e0b;
   --color-warning-600: #d97706;
   --color-warning-700: #b45309;

   --color-error-50: #fef2f2;
   --color-error-100: #fee2e2;
   --color-error-500: #ef4444;
   --color-error-600: #dc2626;
   --color-error-700: #b91c1c;

   --color-info-50: #eff6ff;
   --color-info-100: #dbeafe;
   --color-info-500: #3b82f6;
   --color-info-600: #2563eb;
   --color-info-700: #1d4ed8;

   /* --- Applied Colors (Light Mode) --- */
   --color-bg-primary: var(--color-neutral-0);
   --color-bg-secondary: var(--color-neutral-50);
   --color-bg-tertiary: var(--color-neutral-100);
   --color-bg-inverse: var(--color-neutral-900);

   --color-text-primary: var(--color-neutral-900);
   --color-text-secondary: var(--color-neutral-600);
   --color-text-tertiary: var(--color-neutral-400);
   --color-text-inverse: var(--color-neutral-0);
   --color-text-link: var(--color-primary-600);
   --color-text-link-hover: var(--color-primary-700);

   --color-border-default: var(--color-neutral-200);
   --color-border-hover: var(--color-neutral-300);
   --color-border-focus: var(--color-primary-500);

   /* CTA Buttons: Orange for maximum conversion */
   --color-btn-primary-bg: var(--color-secondary-500);
   --color-btn-primary-text: var(--color-neutral-0);
   --color-btn-primary-hover: var(--color-secondary-600);
   /* Secondary Buttons: Blue for trust */
   --color-btn-secondary-bg: var(--color-primary-600);
   --color-btn-secondary-text: var(--color-neutral-0);
   --color-btn-secondary-hover: var(--color-primary-700);


   /* ========================================================================
     TYPOGRAPHY
     ======================================================================== */

   /* --- Font Families --- */
   /* Heading: Space Grotesk – geometrisch, modern, technisch */
   --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;
   /* Body: Inter – hoch lesbar, web-optimiert, professionell */
   --font-body: 'Inter', system-ui, -apple-system, sans-serif;
   /* Mono: JetBrains Mono – für technische Daten und Specs */
   --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

   /* --- Font Sizes (modular scale 1.25) --- */
   --text-xs: 0.75rem;
   /* 12px */
   --text-sm: 0.875rem;
   /* 14px */
   --text-base: 1rem;
   /* 16px */
   --text-lg: 1.125rem;
   /* 18px */
   --text-xl: 1.25rem;
   /* 20px */
   --text-2xl: 1.5rem;
   /* 24px */
   --text-3xl: 1.875rem;
   /* 30px */
   --text-4xl: 2.25rem;
   /* 36px */
   --text-5xl: 3rem;
   /* 48px */
   --text-6xl: 3.75rem;
   /* 60px */
   --text-7xl: 4.5rem;
   /* 72px */

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

   /* --- Font Weights --- */
   --font-light: 300;
   --font-regular: 400;
   --font-medium: 500;
   --font-semibold: 600;
   --font-bold: 700;
   --font-extrabold: 800;

   /* --- Letter Spacing --- */
   --tracking-tighter: -0.05em;
   --tracking-tight: -0.025em;
   --tracking-normal: 0;
   --tracking-wide: 0.025em;
   --tracking-wider: 0.05em;
   --tracking-widest: 0.1em;


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


   /* ========================================================================
     BORDER RADIUS
     ======================================================================== */
   --radius-none: 0;
   --radius-sm: 4px;
   --radius-md: 8px;
   --radius-lg: 12px;
   --radius-xl: 16px;
   --radius-2xl: 24px;
   --radius-full: 9999px;


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

   /* Colored shadow for cards on hover */
   --shadow-primary: 0 10px 25px -5px rgba(37, 99, 235, 0.25);
   --shadow-secondary: 0 10px 25px -5px rgba(249, 115, 22, 0.25);


   /* ========================================================================
     TRANSITIONS
     ======================================================================== */
   --transition-fast: 150ms ease;
   --transition-base: 250ms ease;
   --transition-slow: 350ms ease;
   --transition-slower: 500ms ease;

   --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-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);


   /* ========================================================================
     Z-INDEX SCALE
     ======================================================================== */
   --z-below: -1;
   --z-base: 0;
   --z-above: 1;
   --z-dropdown: 10;
   --z-sticky: 20;
   --z-fixed: 30;
   --z-drawer: 40;
   --z-modal: 50;
   --z-popover: 60;
   --z-toast: 70;
   --z-tooltip: 80;


   /* ========================================================================
     LAYOUT
     ======================================================================== */
   --container-sm: 640px;
   --container-md: 768px;
   --container-lg: 1024px;
   --container-xl: 1280px;
   --container-2xl: 1440px;
   --container-padding: var(--space-4);

   /* Breakpoints (for reference, used in media queries) */
   /* --bp-sm:  640px;  */
   /* --bp-md:  768px;  */
   /* --bp-lg:  1024px; */
   /* --bp-xl:  1280px; */
   /* --bp-2xl: 1440px; */
}


/* ========================================================================
   DARK MODE
   ======================================================================== */
@media (prefers-color-scheme: dark) {
   :root {
      --color-bg-primary: var(--color-neutral-950);
      --color-bg-secondary: var(--color-neutral-900);
      --color-bg-tertiary: var(--color-neutral-800);
      --color-bg-inverse: var(--color-neutral-0);

      --color-text-primary: var(--color-neutral-50);
      --color-text-secondary: var(--color-neutral-400);
      --color-text-tertiary: var(--color-neutral-500);
      --color-text-inverse: var(--color-neutral-900);
      --color-text-link: var(--color-primary-400);
      --color-text-link-hover: var(--color-primary-300);

      --color-border-default: var(--color-neutral-700);
      --color-border-hover: var(--color-neutral-600);
      --color-border-focus: var(--color-primary-400);

      --color-btn-primary-bg: var(--color-secondary-500);
      --color-btn-primary-text: var(--color-neutral-0);
      --color-btn-primary-hover: var(--color-secondary-400);
      --color-btn-secondary-bg: var(--color-primary-500);
      --color-btn-secondary-text: var(--color-neutral-0);
      --color-btn-secondary-hover: var(--color-primary-400);

      /* Dark mode shadows with more subtle opacity */
      --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
      --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px -1px rgba(0, 0, 0, 0.3);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
   }
}

/* Manual dark mode toggle class */
[data-theme="dark"] {
   --color-bg-primary: var(--color-neutral-950);
   --color-bg-secondary: var(--color-neutral-900);
   --color-bg-tertiary: var(--color-neutral-800);
   --color-bg-inverse: var(--color-neutral-0);

   --color-text-primary: var(--color-neutral-50);
   --color-text-secondary: var(--color-neutral-400);
   --color-text-tertiary: var(--color-neutral-500);
   --color-text-inverse: var(--color-neutral-900);
   --color-text-link: var(--color-primary-400);
   --color-text-link-hover: var(--color-primary-300);

   --color-border-default: var(--color-neutral-700);
   --color-border-hover: var(--color-neutral-600);
   --color-border-focus: var(--color-primary-400);

   --color-btn-primary-bg: var(--color-secondary-500);
   --color-btn-primary-text: var(--color-neutral-0);
   --color-btn-primary-hover: var(--color-secondary-400);
   --color-btn-secondary-bg: var(--color-primary-500);
   --color-btn-secondary-text: var(--color-neutral-0);
   --color-btn-secondary-hover: var(--color-primary-400);
}