/* =============================================
   ツキの副業テンプレ屋 - 宇宙感デザイン
   style.css
   ============================================= */

/* --- CSS変数（ディープスペース・ネビュラ配色） --- */
:root {
  --bg-dark:        #03050f;
  --bg-card:        #090d1f;
  --bg-card-hover:  #0e1530;
  --bg-section:     #060a1a;
  --nebula-purple:  #7c3aed;
  --nebula-violet:  #a855f7;
  --nebula-cyan:    #06b6d4;
  --nebula-cyan-lt: #22d3ee;
  --accent-gold:    #f59e0b;
  --accent-gold-lt: #fbbf24;
  --accent-gold-dim:#78450a;
  --text-primary:   #e8f0ff;
  --text-secondary: #8ba3cc;
  --text-muted:     #3a5070;
  --border:         #141e3a;
  --border-purple:  #7c3aed40;
  --border-gold:    #f59e0b30;
  --radius-sm:      6px;
  --radius-md:      14px;
  --radius-lg:      22px;
  --shadow-card:    0 4px 32px rgba(0,0,0,0.7);
  --shadow-purple:  0 0 30px rgba(124,58,237,0.3);
  --shadow-cyan:    0 0 20px rgba(6,182,212,0.25);
  --shadow-gold:    0 0 20px rgba(245,158,11,0.3);
  --transition:     0.22s ease;
  --max-width:      1120px;
  --font-sans:      'Noto Sans JP', 'Segoe UI', sans-serif;
  --font-mono:      'JetBrains Mono', 'Courier New', monospace;
}

/* --- リセット & ベース --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- 星空キャンバス --- */
#starfield {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* コンテンツはキャンバスより前面 */
#site-header, main, section, div.container, div.page-hero,
div.hero, div.article-header, div.article-body,
#site-footer, #scroll-top {
  position: relative;
  z-index: 1;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--nebula-cyan-lt); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-gold-lt); }
ul, ol { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* =============================================
   ヘッダー
   ============================================= */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(3,5,15,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 0 rgba(124,58,237,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.site-logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
}
.site-logo .logo-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  line-height: 1.2;
}
.site-logo .logo-sub {
  font-size: 0.62rem;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.06em;
}

.global-nav { display: flex; align-items: center; gap: 4px; }
.global-nav a {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.global-nav a:hover, .global-nav a.active {
  color: var(--text-primary);
  background: rgba(124,58,237,0.15);
  box-shadow: 0 0 12px rgba(124,58,237,0.2);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .global-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(3,5,15,0.98);
    flex-direction: column;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--border);
    gap: 2px;
  }
  .global-nav.open { display: flex; }
  .global-nav a { padding: 10px 12px; font-size: 0.9rem; }
}

/* =============================================
   フッター
   ============================================= */
#site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  margin-top: 80px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding: 48px 0 32px;
}

.footer-logo .logo-name { font-size: 1.1rem; font-weight: 700; }
.footer-logo .logo-sub {
  font-size: 0.7rem;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 4px;
}
.footer-logo p { font-size: 0.78rem; color: var(--text-secondary); margin-top: 10px; line-height: 1.6; }

.footer-nav h4, .footer-links h4 {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-nav ul li, .footer-links ul li { margin-bottom: 6px; }
.footer-nav ul li a, .footer-links ul li a { font-size: 0.82rem; color: var(--text-secondary); }
.footer-nav ul li a:hover, .footer-links ul li a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p, .footer-bottom a { font-size: 0.74rem; color: var(--text-muted); }
.footer-bottom a:hover { color: var(--text-secondary); }

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* =============================================
   共通セクション・パーツ
   ============================================= */

.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head .label {
  display: inline-block;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border: 1px solid var(--border-purple);
  padding: 3px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.section-head p { font-size: 0.9rem; color: var(--text-secondary); }

/* カード共通 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--nebula-purple);
  box-shadow: var(--shadow-purple);
  transform: translateY(-3px);
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--nebula-purple), #5b21b6);
  color: #fff;
  border-color: var(--nebula-purple);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--nebula-violet), var(--nebula-purple));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-purple);
}
.btn-cyan {
  background: linear-gradient(135deg, #0891b2, var(--nebula-cyan));
  color: #000;
  border-color: var(--nebula-cyan);
}
.btn-cyan:hover {
  background: linear-gradient(135deg, var(--nebula-cyan), var(--nebula-cyan-lt));
  color: #000;
  transform: translateY(-1px);
  box-shadow: var(--shadow-cyan);
}
.btn-gold {
  background: linear-gradient(135deg, #d97706, var(--accent-gold));
  color: #000;
  border-color: var(--accent-gold);
}
.btn-gold:hover {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-lt));
  color: #000;
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}
.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--nebula-purple);
  color: var(--nebula-violet);
  transform: translateY(-1px);
  box-shadow: 0 0 12px rgba(124,58,237,0.2);
}
.btn-sm { padding: 7px 16px; font-size: 0.78rem; }
.btn-lg { padding: 14px 32px; font-size: 0.95rem; }

/* タグ・バッジ */
.tag {
  display: inline-block;
  font-size: 0.68rem;
  padding: 2px 10px;
  border-radius: 100px;
  background: rgba(124,58,237,0.1);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.tag-blue {
  border-color: rgba(124,58,237,0.5);
  color: var(--nebula-violet);
  background: rgba(124,58,237,0.1);
}
.tag-cyan {
  border-color: rgba(6,182,212,0.5);
  color: var(--nebula-cyan-lt);
  background: rgba(6,182,212,0.08);
}
.tag-gold {
  border-color: rgba(245,158,11,0.4);
  color: var(--accent-gold-lt);
  background: rgba(245,158,11,0.08);
}

.divider { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }

/* 広告枠 */
.ad-slot {
  width: 100%;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.ad-slot-banner { height: 90px; }
.ad-slot-rect   { height: 280px; max-width: 340px; }

/* グリッド */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* =============================================
   ヒーロー
   ============================================= */
.hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
}

/* ネビュラ光源 */
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -80px;
  width: 700px; height: 700px;
  background: radial-gradient(ellipse, rgba(124,58,237,0.18) 0%, transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px; left: -60px;
  width: 500px; height: 500px;
  background: radial-gradient(ellipse, rgba(6,182,212,0.12) 0%, transparent 65%);
  pointer-events: none;
}

/* 追加ネビュラ（中央右） */
.hero-nebula-mid {
  position: absolute;
  top: 40%;
  left: 55%;
  width: 400px; height: 400px;
  background: radial-gradient(ellipse, rgba(168,85,247,0.1) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.hero-content { position: relative; z-index: 2; max-width: 700px; }

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}
.hero .eyebrow::before {
  content: '';
  display: block;
  width: 32px; height: 1px;
  background: linear-gradient(90deg, var(--nebula-purple), var(--nebula-cyan));
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 22px;
  text-shadow: 0 0 60px rgba(124,58,237,0.3);
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--nebula-violet), var(--nebula-cyan-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.85;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* 実績バー */
.stats-bar {
  display: flex;
  gap: 0;
  margin-top: 64px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px 32px;
  border-right: 1px solid var(--border);
  flex: 1;
  min-width: 120px;
  position: relative;
  transition: background var(--transition);
}
.stat-item:last-child { border-right: none; }
.stat-item:hover { background: var(--bg-card-hover); }
.stat-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--nebula-purple), var(--nebula-cyan));
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-item:hover::before { opacity: 1; }
.stat-item .num {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--accent-gold-lt), var(--nebula-cyan-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item .label { font-size: 0.72rem; color: var(--text-secondary); }

/* =============================================
   商品カード
   ============================================= */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}
.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.05), rgba(6,182,212,0.05));
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.product-card:hover {
  border-color: var(--nebula-purple);
  box-shadow: var(--shadow-purple), inset 0 0 60px rgba(124,58,237,0.05);
  transform: translateY(-4px);
}
.product-card:hover::before { opacity: 1; }

.product-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #0d0a2e, #1a0a3e, #0a1a3e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.product-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(transparent, var(--bg-card));
}

.product-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.product-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.product-body h3 { font-size: 1rem; font-weight: 700; }
.product-body p { font-size: 0.82rem; color: var(--text-secondary); flex: 1; line-height: 1.7; }

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: rgba(124,58,237,0.04);
}
.product-price {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   ブログカード
   ============================================= */
.blog-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.blog-card:hover {
  border-color: var(--nebula-purple);
  box-shadow: var(--shadow-purple);
  transform: translateY(-2px);
}
.blog-thumb {
  height: 100%;
  min-height: 130px;
  background: linear-gradient(135deg, #0d0a2e, #0a1a3e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  position: relative;
}
.blog-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(124,58,237,0.15), transparent 70%);
}
.blog-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 8px; }
.blog-meta { display: flex; align-items: center; gap: 8px; font-size: 0.72rem; color: var(--text-muted); }
.blog-body h3 { font-size: 0.95rem; font-weight: 700; line-height: 1.4; }
.blog-body h3 a { color: var(--text-primary); }
.blog-body h3 a:hover { color: var(--nebula-cyan-lt); }
.blog-excerpt { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.65; }
.blog-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 8px; }

@media (max-width: 600px) {
  .blog-card { grid-template-columns: 1fr; }
  .blog-thumb { min-height: 80px; }
}

/* =============================================
   記事本文
   ============================================= */
.article-header { padding: 56px 0 40px; border-bottom: 1px solid var(--border); }
.article-header .article-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.article-header h1 { font-size: clamp(1.4rem, 3vw, 2.2rem); line-height: 1.35; margin-bottom: 16px; }
.article-header .article-meta { font-size: 0.78rem; color: var(--text-muted); display: flex; gap: 16px; flex-wrap: wrap; }

.article-body { padding: 40px 0; }
.article-content { max-width: 740px; }
.article-content h2 {
  font-size: 1.3rem;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid;
  border-image: linear-gradient(180deg, var(--nebula-purple), var(--nebula-cyan)) 1;
  color: var(--text-primary);
}
.article-content h3 {
  font-size: 1.05rem;
  margin: 28px 0 12px;
  color: var(--nebula-cyan-lt);
}
.article-content p { margin-bottom: 18px; color: var(--text-secondary); font-size: 0.92rem; line-height: 1.85; }
.article-content ul, .article-content ol { margin: 0 0 18px 24px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 8px; line-height: 1.7; }
.article-content strong { color: var(--text-primary); }
.article-content code {
  font-family: var(--font-mono);
  background: rgba(124,58,237,0.12);
  border: 1px solid var(--border-purple);
  padding: 1px 7px;
  border-radius: 4px;
  font-size: 0.85em;
  color: var(--nebula-cyan-lt);
}
.article-content pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}
.article-content pre code { background: none; border: none; padding: 0; }
.article-content blockquote {
  border-left: 3px solid var(--nebula-purple);
  padding: 12px 20px;
  background: rgba(124,58,237,0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
}

/* CTAボックス */
.cta-box {
  background: linear-gradient(135deg, rgba(124,58,237,0.15), rgba(6,182,212,0.08));
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-md);
  padding: 36px;
  text-align: center;
  margin: 40px 0;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(124,58,237,0.08), transparent 60%);
  pointer-events: none;
}
.cta-box .cta-label {
  font-size: 0.66rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}
.cta-box h3 { font-size: 1.2rem; margin-bottom: 10px; }
.cta-box p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 22px; }
.cta-box .cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* サイドバー */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 20px; }
.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.sidebar-widget h4 {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 10p