:root {
  --color-main: #564943;
  --color-sub: #fcf8f4;
  --color-accent: #e6b3ae;
  --color-accent-strong: #d7908a;
  --color-sand: #d8c7b9;
  --color-bg: #f7f1eb;
  --color-surface: #fff9f5;
  --color-text: #564943;
  --color-muted: #7e7068;
  --color-border: #e9ded5;
  --color-line: rgba(217, 144, 138, 0.28);
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 10px 28px rgba(120, 90, 70, 0.08);
  --container: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  letter-spacing: 0.01em;
}

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

a:hover,
a:focus {
  text-decoration: underline;
}

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

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-main);
  color: #fff;
  padding: 0.5rem 0.8rem;
  z-index: 1000;
}

.skip-link:focus {
  top: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.74rem 1.28rem;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover,
.btn:focus {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
  color: #fffdfb;
  box-shadow: 0 6px 16px rgba(160, 109, 103, 0.24);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #c87d78;
  border-color: #c87d78;
}

.btn-secondary {
  border-color: var(--color-border);
  color: var(--color-main);
  background: var(--color-surface);
}

.btn-secondary:hover,
.btn-secondary:focus {
  border-color: var(--color-accent);
  background: #fff4f0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.35rem;
}

section {
  padding: 3.2rem 0;
}

.small {
  font-size: 0.88rem;
  color: var(--color-muted);
}

.copy {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}