:root{--ink:#173e44;--ink-soft:#23636a;--gold:#d6a13b;--paper:#f4f0e7;--muted:#667773;--line:#d7dfd8;--card:#fffdf8;--green:#d9ebe2;--red:#f4d6d1;--shadow:0 12px 30px rgba(23,62,68,.08)}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}
.opac-shell{min-height:100vh}.opac-header{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1180px;margin:auto;padding:22px 24px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.08em}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;color:var(--paper);background:var(--ink);font-size:20px}.brand small{display:block;color:var(--muted);font-size:11px;font-weight:400;letter-spacing:0}.nav{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:14px;font-weight:700}.nav a:hover{color:var(--ink)}
.hero{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#e9e7d9}.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;max-width:1180px;margin:auto;padding:82px 24px}.eyebrow{color:#af7925;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase}h1,h2,h3{margin:0;line-height:1.05}h1{font-size:clamp(38px,6vw,76px);letter-spacing:-.05em}h2{font-size:30px;letter-spacing:-.03em}.hero h1{margin-top:18px;max-width:670px}.hero p{max-width:600px;margin:22px 0 0;color:var(--muted);font-size:17px;line-height:1.65}
.hero-art{min-height:310px;position:relative}.art-card{position:absolute;padding:26px;border-radius:28px;box-shadow:12px 16px 0 rgba(214,161,59,.45)}.art-card.main{right:20px;top:15px;width:190px;height:270px;color:var(--paper);background:var(--ink);transform:rotate(7deg)}.art-card.alt{left:24px;bottom:4px;width:145px;height:195px;color:var(--paper);background:#488c86;transform:rotate(-9deg);box-shadow:8px 12px 0 rgba(35,99,106,.2)}.art-card strong{display:block;margin-top:135px;font-size:27px;line-height:.95}.search{display:flex;gap:8px;max-width:660px;margin-top:28px;padding:8px;border:1px solid var(--line);border-radius:17px;background:var(--card);box-shadow:var(--shadow)}.search input{min-width:0;flex:1;border:0;outline:0;padding:11px 8px;background:transparent;font-size:14px}
button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:11px 16px;color:var(--paper);background:var(--ink);cursor:pointer;font-weight:700}.button.gold{color:var(--ink);background:var(--gold)}.button.soft{color:#795718;background:#f5e7c3}.button.outline{color:var(--ink);border:1px solid var(--line);background:var(--card)}.button.danger{color:#8e332d;background:var(--red)}.button.small{padding:8px 11px;font-size:12px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;max-width:1180px;margin:auto;padding:64px 24px}.stat strong{display:block;font-size:33px;font-family:monospace}.stat span{display:block;margin-top:8px;color:var(--muted);font-size:13px}.dark-band{color:var(--paper);background:var(--ink)}.dark-band-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1180px;margin:auto;padding:52px 24px}.dark-band p{max-width:600px;color:#c5d2c7;line-height:1.6}.footer{display:flex;justify-content:space-between;gap:20px;max-width:1180px;margin:auto;padding:26px 24px;color:var(--muted);font-size:12px}
.page{max-width:1180px;margin:auto;padding:46px 24px 70px}.page-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:30px}.page-head h1{margin-top:8px;font-size:clamp(38px,5vw,58px)}.panel{border:1px solid var(--line);border-radius:18px;padding:20px;background:var(--card);box-shadow:var(--shadow)}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.catalog-layout{display:grid;grid-template-columns:220px 1fr;gap:24px}
.filters label,.form label{display:block;margin-top:16px;color:var(--muted);font-size:12px;font-weight:700}.filters label:first-child{margin-top:0}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 11px;background:#fff;color:var(--ink);font:inherit}.filters select,.form input,.form select,.form textarea{margin-top:7px}
.book-card{display:flex;flex-direction:column;gap:14px;min-height:260px;border:1px solid var(--line);border-radius:18px;padding:16px;background:var(--card);box-shadow:var(--shadow)}.book-card:hover{transform:translateY(-2px)}.cover{position:relative;min-height:145px;border-radius:12px;padding:14px;color:#fff8e9;background:var(--ink-soft);overflow:hidden}.cover.gold{background:var(--gold)}.cover.green{background:#488c86}.cover.plum{background:#75617c}.cover.red{background:#b35d55}.cover strong{position:absolute;right:12px;bottom:13px;left:12px;font-size:13px;line-height:1.08}.cover small{display:block;margin-top:5px;font-size:10px;opacity:.78}.book-meta{color:var(--muted);font-size:12px;line-height:1.5}.badge{display:inline-flex;border-radius:999px;padding:5px 9px;font-size:10px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;background:#edf0eb;color:var(--muted)}.badge.green{color:#236448;background:var(--green)}.badge.red{color:#8e332d;background:var(--red)}.badge.gold{color:#795718;background:#f5e7c3}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:var(--card)}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{color:var(--muted);background:#f2f3ed;font-size:10px;letter-spacing:.1em;text-transform:uppercase}tr:last-child td{border-bottom:0}.notice{margin:16px 0;border-radius:12px;padding:12px 14px;color:#236448;background:var(--green);font-size:13px}.notice.error{color:#8e332d;background:var(--red)}
.detail{display:grid;grid-template-columns:260px 1fr;gap:38px}.detail .cover{min-height:340px}.detail h1{margin-top:15px;font-size:clamp(38px,5vw,64px)}.detail .description{max-width:700px;margin:24px 0;color:var(--muted);line-height:1.7}.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.facts small{display:block;color:var(--muted);font-size:10px;text-transform:uppercase}.facts strong{display:block;margin-top:5px;font-size:13px}.chat{min-height:420px;display:flex;flex-direction:column;justify-content:space-between}.chat-response{margin:20px 0;border-radius:14px;padding:16px;background:#edf0eb;line-height:1.65}.chat-question{margin-left:auto;max-width:82%;border-radius:14px 14px 3px 14px;padding:12px 15px;color:var(--paper);background:var(--ink)}.starter{display:block;width:100%;margin-top:8px;color:var(--ink);border:1px solid var(--line);background:var(--card);text-align:left}.account-box{max-width:480px;margin:45px auto}.account-box h1{font-size:42px}.actions{display:flex;flex-wrap:wrap;gap:9px}
@media(max-width:800px){.hero-inner,.catalog-layout,.detail{grid-template-columns:1fr}.hero-art{display:none}.grid-3,.grid-4,.stats,.facts{grid-template-columns:1fr 1fr}.nav a.hide-mobile{display:none}}
@media(max-width:520px){.opac-header,.footer,.dark-band-inner,.page-head{align-items:flex-start;flex-direction:column}.grid-3,.grid-4,.stats,.facts{grid-template-columns:1fr}.search{flex-wrap:wrap}.search .button{width:100%}}