/* ==========================================================================
   base.css — CSS variables, reset, typography, container
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #301D3D;
  --secondary: #0d47a1;
  --accent: #00bcd4;
  --light: #E9E4EB;
  --dark: #490F63;
  --gray: #5f6368;
  --success: #7D6A64;
  --warning: #fbbc05;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 15px;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.10);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f7fa;
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  letter-spacing: -0.005em;
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.02em;
  line-height: 1.25;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--secondary);
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Skip-to-content link for keyboard users (a11y) */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus {
  left: 0;
}

/* Visible focus ring for accessibility */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}