:root{--navy:#102b67;--blue:#174a9c;--orange:#f15a24;--light:#f5f8fc;--text:#17233c;--muted:#66738a;--border:#dfe6f0}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff;line-height:1.55}
.container{width:min(1120px,calc(100% - 32px));margin:auto}.nav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.nav-inner{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:1.3rem;font-weight:800;color:var(--navy);text-decoration:none}.brand span{color:var(--orange)}.nav-links{display:flex;gap:22px;flex-wrap:wrap}.nav a{color:var(--navy);text-decoration:none;font-weight:700}
.hero{background:linear-gradient(135deg,#f7fbff,#e7f1ff);padding:80px 0}.hero-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:50px;align-items:center}.eyebrow{font-weight:800;color:var(--orange);letter-spacing:.08em}.hero h1{font-size:clamp(2.5rem,6vw,4.8rem);line-height:1;color:var(--navy);margin:12px 0}.hero p{font-size:1.2rem;color:var(--muted);max-width:700px}.hero-card,.panel,.search,.download-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:26px;box-shadow:0 10px 30px rgba(16,43,103,.07)}
.hero-card li{margin:10px 0}.section{padding:64px 0}.section h1,.section h2{color:var(--navy)}.light{background:var(--light)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.books{margin-top:28px}.book{border:1px solid var(--border);border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 8px 25px rgba(16,43,103,.06)}.cover{height:210px;background:linear-gradient(135deg,#dfeeff,#f8fbff);display:flex;align-items:center;justify-content:center;text-align:center;padding:25px;color:var(--navy);font-size:1.25rem;font-weight:800}.cover.large{height:420px}.book-body{padding:22px}.book h3{color:var(--navy);margin-bottom:6px}.muted{color:var(--muted)}.badge{display:inline-block;border-radius:999px;padding:5px 10px;font-size:.8rem;font-weight:800}.badge.blue{background:#e7f0ff;color:var(--navy)}.badge.green{background:#e7f7ed;color:#18713b}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:9px;padding:11px 18px;text-decoration:none;font-weight:800;cursor:pointer}.btn.primary{background:var(--navy);color:#fff}.btn.orange{background:var(--orange);color:#fff}.btn.outline{border:1px solid var(--navy);color:var(--navy);background:#fff}.btn.wide{width:100%}.btn.small{padding:7px 10px;font-size:.8rem}.search{display:grid;grid-template-columns:1fr 240px auto;gap:12px;margin-top:22px}.search input,.search select,input,select,textarea{width:100%;padding:12px 14px;border:1px solid #d5dfec;border-radius:9px;background:#fff;font:inherit}label{display:block;font-weight:700;margin:12px 0}label input,label select,label textarea{margin-top:6px;font-weight:400}textarea{min-height:120px;resize:vertical}.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.check{font-weight:500}.check input{width:auto;margin-right:7px}.detail{display:grid;grid-template-columns:380px 1fr;gap:50px;align-items:start}.narrow{max-width:820px}.alert{padding:13px 16px;border-radius:10px;margin:0 0 18px}.alert.success{background:#e8f7ed;color:#176b37}.alert.error{background:#ffe9e9;color:#a32626}.download-card .icon{font-size:2rem;color:var(--orange)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--border);vertical-align:top}.table-wrap{overflow:auto}.inline{display:flex;gap:6px;align-items:center}.inline select{width:auto;padding:7px}footer{background:var(--navy);color:#fff;padding:42px 0}.auth-page{min-height:100vh;background:var(--light);display:grid;place-items:center}.auth-card{width:min(480px,calc(100% - 30px));background:#fff;padding:30px;border-radius:18px;box-shadow:0 15px 45px rgba(16,43,103,.12)}.auth-card h1{color:var(--navy)}
@media(max-width:800px){.hero-grid,.detail{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}.search{grid-template-columns:1fr}.cover.large{height:300px}.nav-inner{align-items:flex-start;padding:15px 0}.nav-links{gap:12px;font-size:.9rem}}
@media(max-width:560px){.grid,.two{grid-template-columns:1fr}.hero{padding:52px 0}.section{padding:44px 0}.hero h1{font-size:2.7rem}.nav-inner{display:block}.nav-links{margin-top:10px}.cover{height:180px}}