:root{--bg:#f5f7fb;--card:#fff;--text:#172033;--muted:#667085;--border:#e4e7ec;--primary:#1f5f46;--danger:#b42318}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:#1f5f46}
.login-page,.install-page{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card,.install-card{width:min(520px,100%);background:#fff;border:1px solid var(--border);border-radius:18px;padding:30px;box-shadow:0 14px 40px rgba(16,24,40,.08)}
.install-card{width:min(720px,100%)}h1{margin-top:0}h2{margin-top:28px}.muted{color:var(--muted)}.small{font-size:13px}
label{display:block;font-weight:700;font-size:14px;margin:13px 0 6px}input,textarea,select{width:100%;padding:11px 12px;border:1px solid #d0d5dd;border-radius:9px;font:inherit;background:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;text-decoration:none;border:0;border-radius:9px;padding:11px 16px;font-weight:700;cursor:pointer;margin-top:16px}
.alert{padding:12px 14px;border-radius:10px;margin:14px 0}.alert.error{background:#fef3f2;color:#b42318}.alert.success{background:#ecfdf3;color:#027a48}.alert.info{background:#eff6ff;color:#1d4ed8}
.top{height:70px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px}.container{max-width:1200px;margin:auto;padding:28px}.container.narrow{max-width:760px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--border)}th,td{padding:12px;text-align:left;border-bottom:1px solid var(--border)}th{background:#f9fafb;color:#475467}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px}.card span{color:var(--muted)}.card strong{font-size:30px;display:block;margin-top:7px}.card.blue{background:#eff6ff;border-color:#bfdbfe}.card.purple{background:#f5f3ff;border-color:#ddd6fe}
@media(max-width:800px){.grid{grid-template-columns:1fr 1fr}.container{padding:18px}}@media(max-width:520px){.grid{grid-template-columns:1fr}.top{padding:0 15px}}