/* ============================================
   DENSIA IMPEX SRL — CSS Variables & Reset
   ============================================ */

:root {
  /* Backgrounds */
  --bg-primary: #080c18;
  --bg-secondary: #0d1321;
  --bg-tertiary: #121a2b;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-glass: rgba(255, 255, 255, 0.05);

  /* Accents */
  --accent-gold: #d4af37;
  --accent-gold-light: #f0d878;
  --accent-gold-dark: #b8941f;
  --accent-blue: #00d4ff;
  --accent-blue-dark: #0099cc;
  --accent-green: #25d366;
  --accent-green-dark: #128c7e;

  /* Text */
  --text-primary: #f0f2f5;
  --text-secondary: #9aa5b8;
  --text-muted: #6b7785;

  /* Borders */
  --border-glass: rgba(255, 255, 255, 0.07);
  --border-glass-hover: rgba(212, 175, 55, 0.25);

  /* Shadows */
  --shadow-glow: rgba(212, 175, 55, 0.15);
  --shadow-glow-blue: rgba(0, 212, 255, 0.12);
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.4);
  --shadow-whatsapp: 0 8px 30px rgba(37, 211, 102, 0.35);

  /* Transitions */
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.8s;

  /* Typography */
  --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: 6rem;
  --container-max: 1200px;
  --container-narrow: 900px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Z-index layers */
  --z-grain: 9998;
  --z-float-btn: 999;
  --z-mobile-bar: 998;
  --z-navbar: 1000;
  --z-modal: 2000;
  --z-cookie: 3000;
  --z-back-to-top: 900;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

::selection {
  background: rgba(212, 175, 55, 0.3);
  color: var(--text-primary);
}

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

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

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-glass);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold-dark);
}