/* ============================================
   FT Sicherheitstechnik — Base Design Tokens
   Dark Premium Theme
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colors */
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-surface-2: #1a1a1a;
  --color-surface-3: #222222;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);

  --color-accent: #ef4444;
  --color-accent-hover: #ff6b6b;
  --color-accent-glow: rgba(239, 68, 68, 0.3);
  --color-accent-subtle: rgba(239, 68, 68, 0.1);

  --color-cta: #22c55e;
  --color-cta-hover: #16a34a;
  --color-cta-glow: rgba(34, 197, 94, 0.3);

  --color-secondary: #00b4d8;
  --color-secondary-hover: #00d4fc;
  --color-secondary-glow: rgba(0, 180, 216, 0.3);
  --color-secondary-subtle: rgba(0, 180, 216, 0.08);

  --color-text: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #777777;

  --color-success: #2ecc71;
  --color-warning: #f39c12;

  /* Typography Scale */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
  --text-lg: clamp(1.05rem, 0.95rem + 0.5vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --text-3xl: clamp(1.8rem, 1.4rem + 2vw, 2.5rem);
  --text-4xl: clamp(2.2rem, 1.6rem + 3vw, 3.5rem);
  --text-hero: clamp(2.5rem, 1.8rem + 3.5vw, 4.5rem);

  /* 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;

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1400px;
  --container-narrow: 800px;
  --gutter: clamp(1rem, 3vw, 2rem);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow-red: 0 0 40px rgba(230, 57, 70, 0.2);
  --shadow-glow-cyan: 0 0 40px rgba(0, 180, 216, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* Header */
  --header-height: 72px;
}

html {
  font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography Reset */
h1, h2, h3, h4, h5, h6 {
  font-family: 'ClashGrotesk-Variable', 'Clash Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--color-surface-3);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: white;
  border-radius: var(--radius-md);
  z-index: 100;
  font-size: var(--text-sm);
}
.skip-link:focus {
  top: var(--space-4);
}