:root{--color-background: #f5f6f7;--color-surface: #ffffff;--color-text: #16191d;--color-text-muted: #5b626c;--color-border: #e4e7eb;--color-neutral-fill: #eef0f2;--color-primary: #0b6e5f;--color-on-primary: #ffffff;--color-primary-tint: #e3f1ee;--color-primary-tint-text: #0a5a4e;--color-danger: #b3261e;--color-danger-tint: #fdecea;--color-success: #1e7a46;--color-success-tint: #e4f4ea;--color-warning-tint: #fff3d6;--color-warning-text: #7a4f00;--radius-field: 10px;--radius-card: 14px}*{box-sizing:border-box}body{margin:0;font-family:Plus Jakarta Sans,system-ui,-apple-system,sans-serif;background:var(--color-background);color:var(--color-text)}button,input,select,textarea{font-family:inherit;font-size:14px}table{border-collapse:collapse;width:100%}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--color-surface);border-right:1px solid var(--color-border);padding:20px 12px;display:flex;flex-direction:column;gap:4px}.sidebar h1{font-size:16px;margin:0 8px 16px;color:var(--color-primary)}.nav-link{display:block;padding:10px 12px;border-radius:var(--radius-field);color:var(--color-text-muted);text-decoration:none;font-weight:600;font-size:14px}.nav-link:hover{background:var(--color-neutral-fill)}.nav-link.active{background:var(--color-primary-tint);color:var(--color-primary-tint-text)}.main-content{flex:1;min-width:0;padding:28px 32px}.page-title{font-size:22px;font-weight:800;margin:0 0 4px}.page-subtitle{color:var(--color-text-muted);margin:0 0 20px;font-size:14px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);padding:16px;overflow-x:auto}.data-table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted);padding:8px 10px;border-bottom:1px solid var(--color-border)}.data-table td{padding:10px;border-bottom:1px solid var(--color-border);font-size:14px;vertical-align:top}.data-table tr:last-child td{border-bottom:none}.btn{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);font-weight:700;cursor:pointer}.btn:hover{background:var(--color-neutral-fill)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-on-primary)}.btn-primary:hover{background:#0a5f52}.btn-danger{background:var(--color-danger-tint);border-color:var(--color-danger-tint);color:var(--color-danger)}.tag{display:inline-flex;align-items:center;padding:3px 8px;border-radius:6px;font-size:12px;font-weight:700;background:var(--color-neutral-fill)}.tag-success{background:var(--color-success-tint);color:var(--color-success)}.tag-warning{background:var(--color-warning-tint);color:var(--color-warning-text)}.tag-danger{background:var(--color-danger-tint);color:var(--color-danger)}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{min-height:38px;padding:0 12px;border-radius:var(--radius-field);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text)}.field textarea{padding:10px 12px;min-height:70px}.empty-state{color:var(--color-text-muted);padding:24px 0;text-align:center}.error-text{color:var(--color-danger);font-size:13px}.toolbar{display:flex;gap:8px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.master-detail{display:flex;gap:16px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-background);padding:16px}.login-card{width:min(340px,100%);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);padding:28px}@media (max-width: 840px){.app-shell{flex-direction:column;min-height:auto}.sidebar{width:100%;flex-direction:row;flex-wrap:wrap;align-items:center;border-right:none;border-bottom:1px solid var(--color-border)}.sidebar h1{flex:1 0 100%;margin:0 8px 8px}.main-content{padding:16px}.master-detail{flex-direction:column}}