:root {
  --color-primary: oklch(0.55 0.22 27); /* Corporate Red */
  --color-text: oklch(0.25 0 0);
  --color-bg: oklch(0.98 0 0);
  --color-white: oklch(1 0 0);
  --color-gray-light: oklch(0.95 0 0);

  --font-base: "Noto Sans JP", "Helvetica Neue", Arial,
    "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s;
}

a:hover {
  opacity: 0.7;
}

ul,
ol {
  list-style: none;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto; /* Required centering method */
  padding-inline: 20px;
}

.section {
  padding-block: 80px;
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 40px;
  color: var(--color-primary);
  font-weight: bold;
}

/* Mobile adjustments at the bottom as requested, 
   but specific file styles will handle most queries. 
   init.css mostly global so standard reset. */
@media (width < 768px) {
  .section {
    padding-block: 60px;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }
}