:root{--wood-dark: #4a2e1e;--brown: #6f4e37;--brown-mid: #8a6248;--tan: #c9a37e;--tan-light: #e8d5bd;--cream: #fbf8f5;--cream-2: #f5ede3;--white: #ffffff;--text-dark: #33261c;--text-muted: #8a7666;--success: #2f7a4f;--success-bg: #e7f4ec;--danger: #b3452f;--danger-bg: #fbeae5;--warning: #b5834d;--warning-bg: #fbf1e4;--border: #e9ddcf;--radius: 14px;--shadow: 0 2px 12px rgba(74, 46, 30, .06);--shadow-lg: 0 8px 30px rgba(74, 46, 30, .12)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--cream);color:var(--text-dark);-webkit-font-smoothing:antialiased}h1,h2,h3,.font-serif{font-family:Playfair Display,serif}a{text-decoration:none;color:inherit}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}.app-shell{min-height:100vh;display:flex;flex-direction:column;position:relative}.app-shell:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:url(/instruments-bg.png) center center / contain no-repeat;opacity:.06;z-index:0;pointer-events:none}@media (max-width: 768px){.app-shell:before{background-size:90% auto;opacity:.05}}main{position:relative;z-index:1}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 16px}.navbar{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}.navbar-inner{max-width:1080px;margin:0 auto;padding:14px 16px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--brown)}.brand-mark{width:38px;height:38px;border-radius:50%;overflow:hidden;flex-shrink:0}.nav-links{display:flex;gap:20px;align-items:center}.nav-link{font-size:14px;font-weight:500;color:var(--text-muted);padding:8px 4px}.nav-link.active{color:var(--brown);border-bottom:2px solid var(--brown)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:10px;border:none;font-weight:600;font-size:14.5px;transition:all .15s ease}.btn-primary{background:var(--brown);color:#fff}.btn-primary:hover{background:var(--wood-dark)}.btn-primary:disabled{background:var(--tan-light);color:var(--text-muted);cursor:not-allowed}.btn-outline{background:transparent;border:1.5px solid var(--brown);color:var(--brown)}.btn-outline:hover{background:var(--cream-2)}.btn-block{width:100%}.btn-sm{padding:8px 14px;font-size:13px}.btn-danger{background:var(--danger);color:#fff}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.stat-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:6px}.stat-card .stat-label{font-size:12.5px;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.4px}.stat-card .stat-value{font-size:26px;font-weight:700;color:var(--wood-dark);font-family:Playfair Display,serif}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13.5px;font-weight:600;color:var(--text-dark);margin-bottom:6px}.form-input,.form-select{width:100%;padding:12px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--white);font-size:15px;color:var(--text-dark);outline:none;transition:border-color .15s}.form-input:focus,.form-select:focus{border-color:var(--tan)}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge-success{background:var(--success-bg);color:var(--success)}.badge-danger{background:var(--danger-bg);color:var(--danger)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.auth-wrap{min-height:calc(100vh - 64px);display:flex;align-items:center;justify-content:center;padding:24px 16px;background:radial-gradient(circle at top,var(--cream-2),var(--cream) 60%)}.auth-card{width:100%;max-width:420px;padding:32px 26px}.auth-title{font-size:24px;margin:0 0 4px;color:var(--wood-dark)}.auth-sub{font-size:14px;color:var(--text-muted);margin:0 0 22px}.month-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}@media (min-width: 480px){.month-grid{grid-template-columns:repeat(3,1fr)}}.month-chip{border:1.5px solid var(--border);border-radius:10px;padding:12px 10px;text-align:center;font-size:13.5px;font-weight:600;color:var(--text-dark);background:var(--white);position:relative;transition:all .12s ease}.month-chip.selected{border-color:var(--brown);background:var(--cream-2);color:var(--brown)}.month-chip.disabled{opacity:.4;cursor:not-allowed}.month-chip .check{position:absolute;top:4px;right:6px;font-size:12px}.table-wrap{overflow-x:auto}table.data-table{width:100%;border-collapse:collapse;font-size:14px}table.data-table th{text-align:left;padding:10px 12px;background:var(--cream-2);color:var(--text-muted);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.3px;white-space:nowrap}table.data-table td{padding:12px;border-bottom:1px solid var(--border);white-space:nowrap}table.data-table tr:last-child td{border-bottom:none}.footer{margin-top:auto;background:var(--wood-dark);color:var(--tan-light);padding:28px 16px;text-align:center;font-size:13px}.footer a{color:var(--tan-light);text-decoration:underline}.section-title{font-size:22px;color:var(--wood-dark);margin:0 0 4px}.section-sub{color:var(--text-muted);font-size:14px;margin:0 0 20px}.grid-2{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width: 720px){.grid-2{grid-template-columns:1fr 1fr}}.grid-3{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}@media (min-width: 720px){.grid-3{grid-template-columns:repeat(3,1fr)}}.flex-between{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.alert{padding:12px 14px;border-radius:10px;font-size:13.5px;margin-bottom:14px}.alert-error{background:var(--danger-bg);color:var(--danger)}.alert-success{background:var(--success-bg);color:var(--success)}.spinner{width:18px;height:18px;border-radius:50%;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .7s linear infinite}.admin-tag{font-size:10.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;background:var(--wood-dark);color:var(--tan-light);padding:3px 8px;border-radius:6px}@keyframes spin{to{transform:rotate(360deg)}}.navbar-inner{display:flex;justify-content:space-between;align-items:center;position:relative;padding:16px}.hamburger{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--wood-dark, #3b2f2f)}@media (max-width: 768px){.hamburger{display:block}.nav-links{display:none;flex-direction:column;position:absolute;top:100%;left:0;width:100%;background-color:#fbf8f5;padding:24px 16px;box-shadow:0 10px 15px -3px #0000001a;gap:16px;z-index:100}.nav-links.open{display:flex}.nav-links .btn{width:100%;margin-top:8px}}