/* ============================================================
   くるまいする — style.css
   カスタマイズしやすいよう CSS変数でまとめています
   ============================================================ */

/* ---------- VARIABLES ---------- */
:root {
  /* Colors */
  --color-bg: #fffdf7;
  --color-surface: #ffffff;
  --color-primary: #ff6b35;      /* メインオレンジ */
  --color-primary-light: #ffe5d8;
  --color-secondary: #3b82f6;    /* アクセントブルー */
  --color-secondary-light: #dbeafe;
  --color-accent: #fbbf24;       /* イエロー */
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;

  /* Typography */
  --font-display: 'Zen Maru Gothic', sans-serif;
  --font-body: 'M PLUS Rounded 1c', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 32px;
  --space-xl: 64px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(255,107,53,0.18);

  /* Header */
  --header-height: 80px;
  --header-bg: #ffffff;
  --header-border: #ffe5d8;

  /* Footer */
  --footer-bg: #1a1a1a;
  --footer-text: #f5f5f5;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- HEADER ---------- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 3px solid var(--header-border);
  height: var(--header-height);
  box-shadow: 0 2px 12px rgba(255,107,53,0.08);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.header-logo a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--color-primary);
  white-space: nowrap;
}
.logo-wheel {
  display: inline-block;
  animation: spin 4s linear infinite;
  font-size: 1.4rem;
}
.logo-wheel-right { animation-direction: reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

.header-tagline {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.header-nav {
  margin-left: auto;
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}
.header-nav a {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  transition: background 0.2s, color 0.2s;
}
.header-nav a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.header-nav .nav-cta {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 20px;
}
.header-nav .nav-cta:hover { background: #e85a24; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 80px var(--space-lg) 100px;
  background: linear-gradient(135deg, #fff8f4 0%, #fff3e6 50%, #f0f9ff 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}
.hero-title-line1 {
  display: block;
  font-size: clamp(3rem, 8vw, 5.5rem);
  color: var(--color-text);
}
.hero-title-line2 {
  display: block;
  font-size: clamp(3.5rem, 10vw, 7rem);
  color: var(--color-primary);
  -webkit-text-stroke: 2px var(--color-primary);
}
.hero-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}
.hero-btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  padding: 14px 36px;
  border-radius: var(--radius-full);
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(255,107,53,0.3);
}
.hero-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,53,0.4); }

/* Decorative circles */
.hero-deco { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.deco-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.25;
}
.deco-c1 { width: 300px; height: 300px; background: var(--color-accent); top: -80px; right: -60px; }
.deco-c2 { width: 180px; height: 180px; background: var(--color-secondary); bottom: -40px; left: 10%; }
.deco-c3 { width: 100px; height: 100px; background: var(--color-primary); top: 30%; left: -20px; }

/* ---------- SECTION COMMON ---------- */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.8rem;
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  display: block;
  height: 4px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-top: 4px;
}
.section-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* ---------- LATEST ARTICLES GRID ---------- */
.section-latest {
  padding: var(--space-xl) 0;
}
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.article-card .thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--color-primary-light);
}
.article-card .card-body {
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.article-card .card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  width: fit-content;
}
.article-card .card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
}
.article-card .card-excerpt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex: 1;
}
.article-card .card-meta {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-md);
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

/* Featured (1st card) — takes full left column */
.article-card.featured {
  grid-row: 1 / 3;
}
.article-card.featured .thumb {
  aspect-ratio: 3/4;
}
.article-card.featured .card-title {
  font-size: 1.3rem;
}

/* ---------- RECOMMENDED ---------- */
.section-recommended {
  padding: var(--space-xl) 0;
  background: linear-gradient(180deg, #fff3e6 0%, var(--color-bg) 100%);
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
.rec-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s, box-shadow 0.2s;
}
.rec-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.rec-card .thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.rec-card .rec-body { padding: var(--space-md); }
.rec-card .card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--color-secondary-light);
  color: var(--color-secondary);
  margin-bottom: 6px;
}
.rec-card .rec-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.4;
}

/* ---------- ABOUT ---------- */
.section-about {
  padding: var(--space-xl) 0;
}
.about-inner {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card);
}
.about-icon { font-size: 5rem; flex-shrink: 0; }
.about-text p {
  color: var(--color-text-muted);
  margin-top: var(--space-md);
  max-width: 560px;
}

/* ---------- FOOTER ---------- */
#site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xl);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
}
.logo-text-sm {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-primary);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}
.footer-nav a {
  font-size: 0.85rem;
  color: #aaa;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--color-primary); }
.footer-copy {
  font-size: 0.75rem;
  color: #666;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
  .header-tagline { display: none; }
  .header-nav { gap: 8px; }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-card.featured {
    grid-row: auto;
  }
  .article-card.featured .thumb { aspect-ratio: 16/9; }
  .recommend-grid { grid-template-columns: 1fr; }
  .about-inner { flex-direction: column; text-align: center; }
  .hero { padding: 48px var(--space-md) 64px; }
}