/* ── STUDY PAGE ── */
.study-page-hero{margin-bottom:1.5rem;padding-bottom:1.25rem;border-bottom:1px solid var(--border)}
.study-page-hero h1{font-family:'DM Serif Display',serif;font-size:28px;color:var(--text);line-height:1.15;margin-bottom:6px;letter-spacing:-.02em}
.study-page-hero p{font-size:14px;color:var(--text2);margin:0}

.study-featured-card{background:linear-gradient(135deg,var(--shen-green-deep),var(--shen-green));border-radius:var(--rl);padding:1.25rem 1.5rem;margin-bottom:2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border:1px solid rgba(255,255,255,.08)}
.study-featured-card-inner{display:flex;align-items:center;gap:1rem}
.study-featured-icon{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;color:var(--shen-ivory)}
.study-featured-info{}
.study-featured-title{font-family:'DM Serif Display',serif;font-size:17px;color:#fff;letter-spacing:-.01em;margin-bottom:2px}
.study-featured-sub{font-size:12px;color:rgba(255,255,255,.6)}
.study-featured-meta{font-size:11px;color:rgba(255,255,255,.45);margin-top:4px}
.study-featured-btn{background:var(--shen-card);border:none;border-radius:var(--r);padding:10px 20px;font-family:'Inter',sans-serif;font-weight:600;font-size:13px;color:var(--shen-green);cursor:pointer;white-space:nowrap;transition:all .15s}
.study-featured-btn:hover{background:var(--shen-ivory)}
.study-featured-btn:disabled{opacity:.4;cursor:default}

.study-section-title{font-family:'DM Serif Display',serif;font-size:18px;color:var(--text);letter-spacing:-.01em;margin-bottom:1rem}
.study-library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;padding-bottom:2rem}
.study-library-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:1rem;display:flex;align-items:center;gap:12px;cursor:pointer;transition:all .15s}
.study-library-card:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}
.study-library-icon{width:34px;height:34px;border-radius:8px;background:var(--shen-jade-soft);display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;color:var(--shen-jade)}
.study-library-name{font-size:14px;font-weight:600;color:var(--text);margin-bottom:1px}
.study-library-sub{font-size:11px;color:var(--text2)}

/* ── HERB REVIEW ── */
.herb-review-section{margin-bottom:2rem}
.herb-review-header{margin-bottom:1rem}
.herb-review-header h2{font-family:'DM Serif Display',serif;font-size:20px;color:var(--text);margin:0 0 2px;letter-spacing:-.01em}
.herb-review-header p{font-size:13px;color:var(--text2);margin:0}
.herb-review-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin-bottom:1rem}
.herb-review-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:1.25rem;display:flex;flex-direction:column;gap:12px;cursor:pointer;transition:all .15s}
.herb-review-card:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}
.herb-review-card-icon{font-size:26px;line-height:1}
.herb-review-card-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:2px}
.herb-review-card-sub{font-size:12px;color:var(--text2);line-height:1.5}
.herb-review-card-meta{font-size:11px;color:var(--text3);margin-top:4px}
.herb-review-card-btn{align-self:flex-start;background:var(--accent);border:none;border-radius:var(--r);padding:8px 18px;font-family:'Inter',sans-serif;font-weight:600;font-size:12px;color:#fff;cursor:pointer;transition:opacity .15s;margin-top:auto}
.herb-review-card-btn:hover{opacity:.85}
.herb-review-card-btn:disabled{opacity:.4;cursor:default}
.herb-review-category-section{margin-top:4px}
.herb-review-category-summary{font-size:13px;font-weight:600;color:var(--text2);cursor:pointer;padding:8px 0;user-select:none}
.herb-review-category-summary:hover{color:var(--text)}
.herb-review-category-body{padding:8px 0 4px}
.herb-review-category-body p{font-size:12px;color:var(--text3);margin:0 0 8px}
.herb-review-category-select{width:100%;max-width:400px;padding:10px 12px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);color:var(--text);font-size:13px;font-family:'Inter',sans-serif;outline:none}
.herb-review-category-select:focus{border-color:var(--accent)}