:root {
  --primary: #FF9F7A;
  --primary-light: #FFD4C4;
  --primary-dark: #E8845A;
  --background: #FFF8F3;
  --background-alt: #FFF0E6;
  --surface: #FFFFFF;
  --text-primary: #4A3728;
  --text-secondary: #8B7355;
  --text-muted: #B8A089;
  --border: #E8DED4;
  --shadow: rgba(74, 55, 40, 0.08);
}

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

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* 肉球パターン背景 */
.paw-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.04;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg fill='%234A3728'%3E%3C!-- 中央の大きな肉球（メタカーパルパッド） --%3E%3Cellipse cx='40' cy='50' rx='12' ry='14' transform='rotate(-10 40 50)'/%3E%3C!-- 上部の指パッド（デジタルパッド） --%3E%3Cellipse cx='28' cy='32' rx='6' ry='8' transform='rotate(-20 28 32)'/%3E%3Cellipse cx='40' cy='28' rx='6' ry='8' transform='rotate(0 40 28)'/%3E%3Cellipse cx='52' cy='32' rx='6' ry='8' transform='rotate(20 52 32)'/%3E%3C!-- 外側の指パッド --%3E%3Cellipse cx='24' cy='44' rx='5' ry='7' transform='rotate(-35 24 44)'/%3E%3Cellipse cx='56' cy='44' rx='5' ry='7' transform='rotate(35 56 44)'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 100px 100px;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* メインカード */
.main-card {
  background: var(--surface);
  border-radius: 24px;
  padding: 48px;
  box-shadow: 0 8px 24px var(--shadow);
  margin-bottom: 32px;
}

/* フッター */
footer {
  text-align: center;
  padding: 32px 24px;
  color: var(--text-muted);
  font-size: 13px;
}

.footer-pug {
  font-size: 24px;
  margin-bottom: 12px;
}

/* レスポンシブ */
@media (max-width: 600px) {
  .container {
    padding: 32px 16px;
  }

  .main-card {
    padding: 32px 24px;
  }
}