:root{
  --red:#a10f0f; --red-dark:#7f0d0d; --bg:#eef1f5; --panel:#ffffff; --line:#d7dde6; --text:#1f2937;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.topbar,.bottombar{height:14px;background:linear-gradient(180deg,var(--red),var(--red-dark))}
.shell{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 28px)}
.sidebar{background:#f7f7f9;border-right:1px solid var(--line);padding:18px}
.brand{font-size:20px;font-weight:700;color:var(--red);margin-bottom:18px}
.nav{display:flex;flex-direction:column;gap:8px}
.nav-link{padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);text-decoration:none}
.nav-link:hover{border-color:#efb3b3;background:#fff3f3}
.content{padding:20px}
.page-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}
.page-header h1{margin:0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;margin-bottom:16px;box-shadow:0 8px 24px rgba(0,0,0,.03)}
.stats-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-bottom:16px}
.stat{display:flex;flex-direction:column;gap:6px}
.stat span{font-size:28px;font-weight:700;color:var(--red)}
.btn{display:inline-block;background:var(--red);color:#fff;text-decoration:none;border:none;border-radius:10px;padding:10px 14px;cursor:pointer}
.btn.secondary{background:#fff;color:var(--red);border:1px solid #e2b1b1}
.link-btn{background:none;border:none;color:var(--red);cursor:pointer;text-decoration:none;padding:0}
.link-btn.danger{color:#9f1d1d}
.inline-form{display:inline}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.form-grid label{display:flex;flex-direction:column;gap:6px}
.form-grid label.full,.form-grid .full{grid-column:1/-1}
input,select,textarea{padding:10px 12px;border:1px solid #ccd4df;border-radius:10px;background:#fff}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:top}
.table th{background:#fafafa}
.flash{padding:12px 14px;border-radius:12px;margin-bottom:14px}
.flash-success{background:#eef7ee;border:1px solid #9fd09f}
.flash-error{background:#fff0f0;border:1px solid #e1a2a2}
.button-row{display:flex;gap:10px;flex-wrap:wrap}
.totals-row{display:flex;gap:18px;font-weight:700;margin-bottom:12px}
@media (max-width:1100px){ .shell{grid-template-columns:1fr} .stats-grid,.form-grid{grid-template-columns:1fr} }

.import-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.compact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}@media (max-width:1100px){.import-grid{grid-template-columns:1fr}}