:root{--primary:#0f766e;--bg:#f4f7fb;--card:#fff;--text:#102033;--border:#dbe3ef;--muted:#64748b}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--text)}body.dark-mode{--bg:#0f172a;--card:#111827;--text:#e5e7eb;--border:#334155}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;background:#0b1220;color:white;position:fixed;top:0;bottom:0;left:0;overflow:auto}.brand{padding:20px;border-bottom:1px solid rgba(255,255,255,.1)}.brand h2{margin:0}.brand span{color:#94a3b8}.side-nav{padding:10px}.side-nav a{display:flex;gap:10px;padding:12px;color:#dbeafe;text-decoration:none;border-radius:12px;margin:4px 0}.side-nav a:hover,.side-nav a.active{background:rgba(15,118,110,.35)}.main-content{margin-left:280px;width:calc(100% - 280px)}.topbar{height:72px;background:var(--card);border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;padding:0 24px;position:sticky;top:0;z-index:2}.topbar span{display:block;color:var(--muted);font-size:13px}.page-wrap{padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:20px;margin-bottom:18px;box-shadow:0 8px 25px rgba(15,23,42,.06)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}label{font-weight:700;font-size:13px;display:block;margin-bottom:5px}input,select,textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:11px;background:var(--card);color:var(--text)}.btn{background:var(--primary);color:white;border:0;border-radius:10px;padding:10px 14px;text-decoration:none;cursor:pointer;display:inline-block;font-weight:700}.msg{padding:12px;background:#dcfce7;color:#166534;border-radius:10px;margin-bottom:12px}.error{padding:12px;background:#fee2e2;color:#991b1b;border-radius:10px;margin-bottom:12px}table{width:100%;border-collapse:collapse;background:var(--card)}th,td{padding:11px;border-bottom:1px solid var(--border);text-align:left}th{background:rgba(148,163,184,.12)}.badge{padding:5px 9px;border-radius:999px;font-size:12px;font-weight:700;background:#e2e8f0}.badge.locked{background:#fee2e2;color:#991b1b}.mobile-menu-btn,.sidebar-overlay{display:none}@media(max-width:768px){.mobile-menu-btn{display:block;position:fixed;top:12px;left:12px;z-index:9999;background:#0f766e;color:white;border:0;border-radius:12px;width:44px;height:44px;font-size:22px}.sidebar{left:-300px;width:280px;z-index:9998;transition:left .3s;border-radius:0 22px 22px 0}.sidebar.open{left:0}.sidebar-overlay.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:9997}.main-content{margin-left:0;width:100%;padding-top:60px}.topbar{padding-left:65px;height:auto;min-height:62px}.page-wrap{padding:14px}.grid,.grid-2,.grid-3{grid-template-columns:1fr}table{display:block;overflow-x:auto;white-space:nowrap}.card{border-radius:20px;padding:15px}}@media print{.sidebar,.topbar,.no-print,.mobile-menu-btn,.sidebar-overlay{display:none!important}.main-content{margin:0;width:100%}.page-wrap{padding:0}.card{box-shadow:none;border:0}}