:root{--ink:#24312d;--muted:#63706a;--line:#d9ddd8;--paper:#f8f6f0;--surface:#fff;--accent:#9b5c3d;--accent-dark:#77452f;--soft:#eee8dc}*{box-sizing:border-box}html{font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);line-height:1.55}body{margin:0}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font:inherit}button:disabled{cursor:not-allowed;opacity:.58}.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:24px;min-height:76px}.brand{font-family:Georgia,serif;font-size:1.35rem;font-weight:700;white-space:nowrap}.main-nav,.header-links{display:flex;align-items:center;gap:18px}.main-nav{flex:1}.search-form{display:flex;max-width:270px}.search-form input{width:170px}.search-form button,.button{border:1px solid var(--ink);background:transparent;padding:10px 15px;cursor:pointer}.search-form button{background:var(--ink);color:#fff}.search-form input,input,textarea{border:1px solid #aeb8b1;background:var(--surface);padding:10px 12px;border-radius:0}.header-links{font-size:.9rem}.count{display:inline-block;min-width:20px;text-align:center;background:var(--soft);padding:1px 5px}.menu-toggle{display:none;background:transparent;border:1px solid var(--line);padding:8px 10px}.site-main{min-height:65vh}.hero{padding:88px 0 72px;border-bottom:1px solid var(--line)}h1,h2,h3,p{margin-top:0}h1{font-family:Georgia,serif;font-size:clamp(2.1rem,5vw,4.2rem);line-height:1.1;max-width:760px;margin-bottom:20px}h2{font-family:Georgia,serif;font-size:1.8rem;line-height:1.2}.lead{font-size:1.12rem;color:var(--muted);max-width:650px;margin-bottom:28px}.eyebrow{color:var(--accent);font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}.button-primary{background:var(--accent);border-color:var(--accent);color:#fff}.button-primary:hover{background:var(--accent-dark);text-decoration:none}.section{padding:56px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:14px}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.category-card{display:flex;justify-content:space-between;padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}.category-card:hover{background:var(--soft);text-decoration:none}.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.book-card{min-width:0}.book-cover{display:block;background:var(--soft);aspect-ratio:2/3;margin-bottom:12px}.book-cover img,.detail-cover img{width:100%;height:100%;object-fit:cover;display:block}.book-info h3{font-family:Georgia,serif;font-size:1rem;line-height:1.3;margin-bottom:5px}.book-author,.muted{color:var(--muted);font-size:.9rem}.book-price{font-weight:700;margin:8px 0 0}.book-info del{font-size:.82rem;color:var(--muted)}.page-head{padding:42px 0 28px;border-bottom:1px solid var(--line)}.breadcrumbs{display:flex;gap:9px;color:var(--muted);font-size:.86rem;margin-bottom:32px}.breadcrumbs span:last-child{color:var(--ink)}.detail-grid{display:grid;grid-template-columns:minmax(250px,390px) 1fr;gap:64px;padding:58px 0}.detail-cover{background:var(--soft);aspect-ratio:2/3}.detail-copy{max-width:620px;padding-top:12px}.detail-copy h1{font-size:clamp(2rem,4vw,3.3rem)}.large-price{font-size:1.45rem}.stock-note{border-top:1px solid var(--line);padding-top:14px;color:var(--muted)}.empty-state,.info-card,.admin-panel,.form-card{background:var(--surface);border:1px solid var(--line);padding:28px}.empty-state{max-width:650px}.form-layout{max-width:720px}.form-card{display:grid;gap:9px}.form-card label{font-weight:700;margin-top:8px}.notice{border-left:3px solid var(--accent);background:var(--soft);padding:14px;margin-bottom:18px}.search-large{display:flex;gap:10px;max-width:650px;align-items:end}.search-large label{display:block;font-weight:700}.search-large input{flex:1}.result-note{margin-top:16px;color:var(--muted)}.auth-page{padding:72px 0;display:flex;justify-content:center}.auth-page .form-card{width:min(100%,440px)}.account-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.text-section{max-width:760px}.error-page{padding:100px 0}.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:42px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-grid h2{font:700 .9rem Arial;text-transform:uppercase;letter-spacing:.08em}.footer-grid a{display:block;margin:5px 0}.footer-grid p{color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.admin-body{background:var(--paper)}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.admin-sidebar{background:var(--ink);color:#fff;padding:26px 18px;display:flex;flex-direction:column}.admin-sidebar .brand{margin-bottom:35px}.admin-sidebar small{display:block;font:normal .72rem Arial;color:#c5d0c9;margin-top:5px}.admin-sidebar nav{display:grid;gap:5px}.admin-sidebar nav a,.sidebar-back{padding:10px 8px;color:#eef3ee}.admin-sidebar nav a:hover,.admin-sidebar nav a:focus{background:#394942;text-decoration:none}.sidebar-back{margin-top:auto;border-top:1px solid #56645e;padding-top:18px}.admin-content{min-width:0}.admin-header{background:var(--surface);border-bottom:1px solid var(--line);padding:24px 34px;display:flex;align-items:center;gap:20px}.admin-header h1{font:700 1.7rem Georgia,serif;margin:0}.admin-header .eyebrow{margin:0}.demo-note{margin-left:auto;color:var(--muted);font-size:.84rem}.admin-main{padding:34px;max-width:1180px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--line);padding:18px}.stat-card span{display:block;color:var(--muted);font-size:.9rem}.stat-card strong{display:block;font:700 2rem Georgia,serif;margin-top:8px}.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line)}.admin-table{width:100%;border-collapse:collapse;min-width:620px}.admin-table th,.admin-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}.admin-table th{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.admin-table tr:last-child td{border-bottom:0}.status{color:#356646}.admin-panel{max-width:820px}@media(max-width:900px){.header-inner{flex-wrap:wrap;padding:14px 0}.main-nav,.search-form,.header-links{display:none;order:4;width:100%}.main-nav.is-open,.search-form.is-open,.header-links.is-open{display:flex}.main-nav.is-open{flex-direction:column;align-items:flex-start}.menu-toggle{display:block;margin-left:auto}.book-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.admin-shell{grid-template-columns:1fr}.admin-sidebar{display:none}.admin-sidebar.is-open{display:flex}.admin-header{padding:20px}.admin-main{padding:22px}.stats-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.container{width:min(100% - 24px,1120px)}h1{font-size:2.3rem}.hero{padding:58px 0 48px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.category-grid,.account-grid,.footer-grid{grid-template-columns:1fr}.detail-grid{grid-template-columns:1fr;gap:30px;padding-top:30px}.detail-cover{max-width:260px}.search-large{display:grid;align-items:stretch}.search-large input{width:100%}.stats-grid{gap:10px}.stat-card{padding:14px}.stat-card strong{font-size:1.5rem}.admin-header{align-items:flex-start}.demo-note{display:none}.admin-table{min-width:560px}}
/* Responsive refinements from CHANGE-004. */
.section-heading>a{white-space:nowrap;flex-shrink:0}.lead,.footer-grid p{text-wrap:pretty}.section-heading h2{ text-wrap:balance}.search-form{flex:0 1 290px;max-width:290px}.search-form input{width:auto;min-width:0;flex:1}.book-info h3{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;min-height:2.6em}.footer-grid a:not(.brand){padding:5px 0;margin:0}
.section-heading>a{padding:4px 0}
@media(max-width:960px) and (min-width:561px){.header-inner{flex-wrap:wrap;padding:14px 0}.main-nav,.search-form,.header-links{display:none;order:4;width:100%}.main-nav.is-open,.search-form.is-open,.header-links.is-open{display:flex}.main-nav.is-open{flex-direction:column;align-items:flex-start}.menu-toggle{display:block;margin-left:auto}}