:root {
  --lavender:       #9B9BC0;
  --lavender-mid:   #B4B4CF;
  --lavender-light: #D8D8EC;
  --lavender-pale:  #F0F0F8;
  --gold:           #C4A44A;
  --gold-light:     #E8D48A;
  --gold-pale:      #FAF6E8;
  --cream:          #FAFAF8;
  --white:          #FFFFFF;
  --dark:           #2A2A38;
  --mid:            #5A5A72;
  --light:          #9A9AAE;
  --border:         #E4E4F0;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Noto Sans JP', sans-serif; background: var(--cream); color: var(--dark); line-height: 1.8; }

/* NAV */
nav { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { font-family: 'Noto Serif JP', serif; font-size: 13px; font-weight: 600; color: var(--dark); text-decoration: none; letter-spacing: 0.06em; line-height: 1.5; }
.nav-logo span { color: var(--lavender); }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a { text-decoration: none; font-size: 12px; color: var(--mid); font-weight: 400; letter-spacing: 0.04em; transition: color 0.2s; }
.nav-links a:hover { color: var(--lavender); }
.nav-links .hl { color: var(--lavender); font-weight: 500; }

/* BUTTONS */
.btn { display: inline-block; padding: 12px 28px; border-radius: 30px; font-size: 13px; font-weight: 500; cursor: pointer; letter-spacing: 0.06em; text-decoration: none; transition: all 0.2s; font-family: 'Noto Sans JP', sans-serif; border: none; }
.btn-primary { background: var(--lavender); color: white; }
.btn-primary:hover { background: #8888B0; transform: translateY(-1px); }
.btn-gold { background: var(--gold); color: white; }
.btn-gold:hover { background: #B09040; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--lavender); border: 1.5px solid var(--lavender); }
.btn-outline:hover { background: var(--lavender-pale); }

/* TAGS */
.cat-tag { display: inline-block; font-size: 10px; font-weight: 600; padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; letter-spacing: 0.06em; }
.tag-lav  { background: var(--lavender-pale); color: var(--lavender); border: 1px solid var(--lavender-light); }
.tag-gold { background: var(--gold-pale);     color: var(--gold);     border: 1px solid var(--gold-light); }
.tag-pink { background: #F8F0F5; color: #A06090; border: 1px solid #E8D0E0; }
.tag-blue { background: #F0F4F8; color: #6080A0; border: 1px solid #D0DCE8; }

/* SECTION LABEL */
.section-label { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.section-label h2 { font-family: 'Noto Serif JP', serif; font-size: 18px; font-weight: 600; color: var(--dark); letter-spacing: 0.05em; white-space: nowrap; }
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* POST META */
.post-meta { font-size: 11px; color: var(--light); }

/* SIDEBAR */
.sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-card { background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.sidebar-title { font-family: 'Noto Serif JP', serif; font-size: 13px; font-weight: 600; color: var(--dark); letter-spacing: 0.05em; padding-bottom: 12px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.profile-avatar { width: 76px; height: 76px; border-radius: 50%; background: linear-gradient(135deg, var(--lavender-light) 0%, var(--lavender) 100%); margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; font-size: 30px; }
.profile-name { text-align: center; font-weight: 700; font-size: 17px; margin-bottom: 3px; }
.profile-sub  { text-align: center; font-size: 11px; color: var(--light); margin-bottom: 12px; }
.profile-bio  { font-size: 12px; color: var(--mid); line-height: 1.8; }
.cat-list { list-style: none; }
.cat-list li { display: flex; align-items: center; justify-content: space-between; padding: 9px 0; border-bottom: 1px dashed var(--border); font-size: 12px; color: var(--mid); cursor: pointer; transition: color 0.2s; }
.cat-list li:last-child { border-bottom: none; }
.cat-list li:hover, .cat-list li.hl { color: var(--lavender); }
.cat-count { background: var(--lavender-pale); color: var(--lavender); font-size: 10px; padding: 2px 8px; border-radius: 10px; font-weight: 500; }
.cat-list li.hl .cat-count { background: var(--lavender); color: white; }
.newsletter-card { background: linear-gradient(135deg, var(--lavender) 0%, #7878A8 100%); border: none; }
.newsletter-card .sidebar-title { color: white; border-color: rgba(255,255,255,0.25); }
.newsletter-card p { font-size: 12px; color: rgba(255,255,255,0.9); margin-bottom: 14px; line-height: 1.75; }
.newsletter-input { width: 100%; padding: 10px 14px; border: none; border-radius: 8px; font-size: 12px; font-family: 'Noto Sans JP',sans-serif; margin-bottom: 8px; outline: none; }
.newsletter-btn { width: 100%; background: rgba(255,255,255,0.18); color: white; border: 1.5px solid rgba(255,255,255,0.45); padding: 10px; border-radius: 8px; font-size: 12px; font-family: 'Noto Sans JP',sans-serif; cursor: pointer; letter-spacing: 0.06em; }
.newsletter-btn:hover { background: rgba(255,255,255,0.28); }
.book-sidebar-row { display: flex; gap: 14px; align-items: center; margin-bottom: 14px; }
.book-sidebar-cover { width: 60px; height: 84px; background: linear-gradient(160deg, var(--lavender-mid), var(--lavender)); border-radius: 3px 6px 6px 3px; box-shadow: 3px 4px 12px rgba(155,155,192,0.3); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.book-sidebar-num { color: var(--gold-light); font-size: 22px; font-weight: 700; }
.book-sidebar-info h4 { font-size: 13px; font-weight: 600; color: var(--dark); margin-bottom: 4px; line-height: 1.5; }
.book-sidebar-info p  { font-size: 11px; color: var(--mid); }

/* FOOTER */
footer { background: var(--dark); color: rgba(255,255,255,0.5); text-align: center; padding: 44px 24px; font-size: 12px; letter-spacing: 0.04em; margin-top: 64px; }
footer .footer-logo { font-family: 'Noto Serif JP', serif; font-size: 16px; color: white; margin-bottom: 6px; font-weight: 600; }
footer .footer-sub { font-size: 11px; color: var(--lavender-light); margin-bottom: 20px; letter-spacing: 0.08em; }
footer .footer-links { display: flex; gap: 20px; justify-content: center; margin-bottom: 16px; }
footer .footer-links a { color: rgba(255,255,255,0.4); text-decoration: none; font-size: 11px; }
footer .footer-links a:hover { color: var(--lavender-light); }

/* RESPONSIVE */
@media (max-width: 900px) { .main-layout { grid-template-columns: 1fr !important; } }
@media (max-width: 680px) { .nav-links { display: none; } }