/* VidClaw — CSS Variables + Modern Reset */

:root {
  /* Backgrounds */
  --bg-base:        #0A0A0F;
  --bg-surface:     #0F0F1A;
  --bg-elevated:    #141428;
  --bg-border:      #1E1E3A;

  /* Accents */
  --accent-primary:   #7C3AED;
  --accent-secondary: #2563EB;
  --accent-cyan:      #06B6D4;
  --accent-gradient:  linear-gradient(135deg, #7C3AED, #2563EB, #06B6D4);

  /* Glows */
  --glow-purple:    rgba(124, 58, 237, 0.4);
  --glow-blue:      rgba(37, 99, 235, 0.35);
  --glow-cyan:      rgba(6, 182, 212, 0.3);

  /* Text */
  --text-primary:   #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted:     #475569;

  /* Typography */
  --font-sans: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.6);
  --shadow-glow-purple: 0 0 40px var(--glow-purple);
  --shadow-glow-blue:   0 0 40px var(--glow-blue);
  --shadow-glow-cyan:   0 0 40px var(--glow-cyan);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

input, textarea, select {
  font: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

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

/* Selection */
::selection {
  background: rgba(124, 58, 237, 0.3);
  color: var(--text-primary);
}