@charset "UTF-8";

/* ============================================================
 * IK Promotool — テーマ共通CSS
 * ============================================================ */

:root {
  --color-primary: #543f32;
  --color-bg: #ede4cd;
  --color-accent: #c9171e;
  --color-white: #fff;
  --font-family:
    "Helvetica Neue", Arial,
    "Hiragino Kaku Gothic ProN", "Hiragino Sans",
    Meiryo, sans-serif;
}

/* --- Base --------------------------------------------------- */
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-accent);
}

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

/* ============================================================
 * Header
 * ============================================================ */
.site-header {
  background-color: var(--color-primary);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
  padding: 10px 20px;
}
.site-branding .site-logo {
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.site-branding .site-logo:hover {
  opacity: 0.8;
  color: var(--color-white);
}

/* Nav */
.site-nav-list {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav-list a {
  color: var(--color-white);
  font-size: 0.85rem;
  font-weight: 600;
}
.site-nav-list a:hover {
  opacity: 0.7;
}

/* ============================================================
 * Main
 * ============================================================ */
.site-main {
  min-height: calc(100vh - 120px);
}

/* ============================================================
 * Content area (index, page)
 * ============================================================ */
.content-area {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}
.content-inner {
  background-color: var(--color-white);
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.entry-title a {
  font-size: 1.2rem;
  font-weight: 700;
}
.entry-excerpt {
  margin-top: 8px;
  font-size: 0.9rem;
  color: #666;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}
.page-content {
  line-height: 1.8;
}

/* ============================================================
 * Front page
 * ============================================================ */
.front-page {
  text-align: center;
}
.front-hero {
  padding: 60px 20px 40px;
}
.front-hero-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.front-hero-lead {
  font-size: 1rem;
  color: #777;
}
.front-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  text-align: left;
}

/* ============================================================
 * Footer
 * ============================================================ */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
}
.site-copyright {
  margin: 0;
  opacity: 0.8;
}

/* ============================================================
 * Responsive
 * ============================================================ */
@media screen and (max-width: 600px) {
  .site-header-inner {
    flex-direction: column;
    gap: 8px;
  }
  .site-nav-list {
    gap: 12px;
  }
  .front-hero-title {
    font-size: 1.5rem;
  }
  .content-inner {
    padding: 20px 15px;
  }
}