/* =============================================
   base.css — リセット・変数・基本スタイル
   ============================================= */

/* CSS Variables（デザイントークン） */
:root {
  /* Colors */
  --color-primary-dark: #1a1a2e;
  --color-gold: #b3a47c;
  --color-gold-light: rgba(179, 164, 124, 0.2);
  --color-text: #282828;
  --color-text-light: #f5f5f5;
  --color-bg-cream: #fcfaf5;
  --color-bg-light: #f5f5f5;
  --color-white: #ffffff;
  --color-overlay: rgba(26, 26, 46, 0.6);

  /* Fonts */
  --font-mincho: 'Zen Old Mincho', serif;
  --font-playfair: 'Playfair', serif;
  --font-yu-mincho: 'Yu Mincho', 'YuMincho', serif;

  /* Spacing */
  --section-padding-x: 90px;
  --section-padding-y: 186px;
  --content-max-width: 1280px;

  /* Breakpoints (for reference) */
  /* SP: ~767px / Tablet: 768px~1024px / PC: 1025px~ */
}

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

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

body {
  font-family: var(--font-mincho);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

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

/* Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}