/* ============================
   Common Styles - 浜の家
   Palette: Beige × Charcoal × Green accent
   ============================ */

:root {
  --color-bg: #FAF7F1;
  --color-bg-alt: #F2EBDD;
  --color-surface: #FFFFFF;
  --color-text: #2C2A26;
  --color-text-muted: #6B6660;
  --color-charcoal: #2C2A26;
  --color-charcoal-soft: #3D3A35;
  --color-beige-deep: #C9B896;
  --color-accent: #5C7A55;
  --color-accent-deep: #3F5B3A;
  --color-line: #E2D8C2;
  --color-warn: #B8541F;

  --font-jp: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  --font-en: "Cormorant Garamond", "Times New Roman", serif;

  --max-w: 1200px;
  --max-w-narrow: 960px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-jp);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-charcoal);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--color-accent); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow {
  max-width: var(--max-w-narrow);
}

/* ============================
   Header
   ============================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 241, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
  padding: 0 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
}
.site-logo img {
  height: 44px;
  width: auto;
  display: block;
}

.site-nav { display: block; }
.site-nav ul,
.site-nav__list {
  display: flex;
  gap: 32px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav li { margin: 0; }
.site-nav a {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--color-charcoal-soft);
}
.site-nav__cta,
.site-nav li:last-child > a {
  background: var(--color-charcoal);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 2px;
  font-size: 13px;
}
.site-nav__cta:hover,
.site-nav li:last-child > a:hover { background: var(--color-accent-deep); }

.site-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  padding: 9px;
  cursor: pointer;
}
.site-nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-charcoal);
  margin: 5px 0;
}

/* ============================
   Footer
   ============================ */

.site-footer {
  background: var(--color-charcoal);
  color: #D8D2C5;
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
}
.site-footer a { color: #D8D2C5; }
.site-footer a:hover { color: #fff; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand__logo {
  height: 40px;
  width: auto;
  display: inline-block;
  background: #fff;
  padding: 10px 18px;
  border-radius: 4px;
  box-sizing: content-box;
}
.footer-brand__company {
  font-size: 14px;
  letter-spacing: 0.1em;
  margin: 16px 0 0;
  color: #fff;
  font-weight: 500;
}
.footer-brand__tagline {
  font-size: 13px;
  margin-top: 12px;
  line-height: 1.8;
  color: #B5AE9F;
}

.footer-col__title {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: #B5AE9F;
  margin: 0 0 16px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; font-size: 13px; }

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #888378;
}

/* ============================
   Section Common
   ============================ */

.section { padding: var(--space-xl) 0; }
.section--alt { background: var(--color-bg-alt); }
.section--dark { background: var(--color-charcoal); color: #E5DFD0; }
.section--dark .section-heading__en { color: var(--color-beige-deep); }
.section--dark .section-heading__jp { color: #fff; }

.section-heading { text-align: center; margin-bottom: var(--space-lg); }
.section-heading__en {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.4em;
  color: var(--color-accent-deep);
  font-style: italic;
  font-weight: 400;
  margin: 0;
}
.section-heading__jp {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-charcoal);
  margin: 12px 0 0;
}
.section-heading__lead {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-top: 16px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 2;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 14px;
  letter-spacing: 0.15em;
  border: 1px solid var(--color-charcoal);
  background: transparent;
  color: var(--color-charcoal);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.btn:hover { background: var(--color-charcoal); color: #fff; }
.btn--primary { background: var(--color-charcoal); color: #fff; }
.btn--primary:hover { background: var(--color-accent-deep); border-color: var(--color-accent-deep); }
.btn--light { border-color: #fff; color: #fff; }
.btn--light:hover { background: #fff; color: var(--color-charcoal); }

/* ============================
   Responsive
   ============================ */

@media (max-width: 768px) {
  body { font-size: 15px; }
  .site-header__inner { height: 60px; padding: 0 16px; }
  .site-nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 60px;
    background: rgba(250, 247, 241, 0.98);
    border-bottom: 1px solid var(--color-line);
    padding: 16px;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul,
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .site-nav a {
    display: block;
    padding: 8px 0;
  }
  .site-nav__cta,
  .site-nav li:last-child > a {
    text-align: center;
    padding: 10px 20px !important;
  }
  .site-logo img { height: 36px; }
  .footer-brand__logo { height: 32px; padding: 8px 14px; }

  .section { padding: var(--space-lg) 0; }
  .section-heading__jp { font-size: 22px; }
  .container { padding: 0 16px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}