:root[data-theme=light]{--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--bg-card:#fff;--bg-hover:#f1f5f9;--bg-input:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--text-inverse:#fff;--border-color:#e2e8f0;--border-focus:#2563eb;--accent-primary:#2563eb;--accent-primary-hover:#1d4ed8;--accent-success:#16a34a;--accent-warning:#f59e0b;--accent-danger:#dc2626;--accent-danger-hover:#b91c1c;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--sidebar-bg:#1e293b;--sidebar-text:#e2e8f0;--sidebar-hover:#334155;--sidebar-active:#2563eb}:root[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--bg-card:#1e293b;--bg-hover:#334155;--bg-input:#1e293b;--text-primary:#f1f5f9;--text-secondary:#cbd5e1;--text-muted:#64748b;--text-inverse:#0f172a;--border-color:#334155;--border-focus:#3b82f6;--accent-primary:#3b82f6;--accent-primary-hover:#2563eb;--accent-success:#22c55e;--accent-warning:#fbbf24;--accent-danger:#ef4444;--accent-danger-hover:#dc2626;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 6px -1px #0006;--shadow-lg:0 10px 15px -3px #00000080;--sidebar-bg:#0f172a;--sidebar-text:#e2e8f0;--sidebar-hover:#1e293b;--sidebar-active:#3b82f6}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-secondary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;transition:background-color .3s,color .3s}.app-layout{min-height:100vh;display:flex}.sidebar{background-color:var(--sidebar-bg);width:260px;color:var(--sidebar-text);flex-direction:column;height:100vh;padding:20px 0;display:flex;position:fixed;overflow-y:auto}.sidebar-logo{border-bottom:1px solid #ffffff1a;margin-bottom:20px;padding:0 20px 20px;font-size:1.1rem;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:0 12px;display:flex}.sidebar-link{color:var(--sidebar-text);border-radius:8px;align-items:center;gap:12px;padding:10px 16px;text-decoration:none;transition:background-color .2s;display:flex}.sidebar-link:hover{background-color:var(--sidebar-hover)}.sidebar-link.active{background-color:var(--sidebar-active);color:#fff}.main-content{flex:1;max-width:1200px;margin-left:260px;padding:30px}.card{background-color:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);border-radius:12px;padding:24px}.form-group{margin-bottom:16px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:.875rem;font-weight:500;display:block}.form-input{background-color:var(--bg-input);border:1px solid var(--border-color);width:100%;color:var(--text-primary);border-radius:8px;padding:10px 14px;font-size:.9rem;transition:border-color .2s}.form-input:focus{border-color:var(--border-focus);outline:none;box-shadow:0 0 0 3px #2563eb1a}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.9rem;font-weight:500;transition:background-color .2s,transform .1s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--accent-primary);color:#fff}.btn-primary:hover{background-color:var(--accent-primary-hover)}.btn-danger{background-color:var(--accent-danger);color:#fff}.btn-danger:hover{background-color:var(--accent-danger-hover)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--bg-hover)}.table-container{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border-color);padding:12px 16px}th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem;font-weight:600}tr:hover{background-color:var(--bg-hover)}.alert{border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:.9rem}.alert-warning{border:1px solid var(--accent-warning);color:var(--accent-warning);background-color:#f59e0b1a}.alert-danger{border:1px solid var(--accent-danger);color:var(--accent-danger);background-color:#dc26261a}.alert-success{border:1px solid var(--accent-success);color:var(--accent-success);background-color:#16a34a1a}.auth-container{justify-content:center;align-items:center;gap:60px;min-height:100vh;padding:20px;display:flex}.landing-section{max-width:480px}.landing-title{color:var(--text-primary);margin-bottom:12px;font-size:2rem;font-weight:800}.landing-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:1.1rem;line-height:1.5}.landing-features{flex-direction:column;gap:16px;display:flex}.landing-feature{align-items:flex-start;gap:12px;display:flex}.landing-feature-icon{flex-shrink:0;margin-top:2px;font-size:1.5rem}.landing-feature strong{color:var(--text-primary);margin-bottom:2px;display:block}.landing-feature p{color:var(--text-secondary);margin:0;font-size:.875rem;line-height:1.4}@media (width<=900px){.auth-container{flex-direction:column;gap:32px}.landing-section{text-align:center;max-width:100%}.landing-features{text-align:left}}.landing-lang-selector{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}.landing-lang-btn{border:1px solid var(--border-color);cursor:pointer;color:var(--text-secondary);background:0 0;border-radius:6px;padding:4px 12px;font-size:.8rem;transition:all .2s}.landing-lang-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.landing-lang-btn.active{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.auth-card{width:100%;max-width:420px}.auth-title{text-align:center;margin-bottom:24px;font-size:1.5rem;font-weight:700}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:16px;font-size:.875rem}.auth-footer a{color:var(--accent-primary);text-decoration:none}.header-bar{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.header-bar h1{font-size:1.5rem;font-weight:700}.header-actions{align-items:center;gap:12px;display:flex}.theme-toggle{border:1px solid var(--border-color);cursor:pointer;color:var(--text-primary);background:0 0;border-radius:8px;padding:8px 12px;font-size:1.1rem}.language-select{background-color:var(--bg-input);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:8px;padding:8px 12px;font-size:.85rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{padding:20px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.8rem}.stat-value{font-size:1.5rem;font-weight:700}.modal-overlay{z-index:1000;background-color:#00000080;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-content{background-color:var(--bg-card);width:100%;max-width:500px;max-height:90vh;box-shadow:var(--shadow-lg);border-radius:12px;padding:24px;overflow-y:auto}.modal-content.modal-large{max-width:700px}.modal-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.modal-header h2{font-size:1.2rem}.modal-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;font-size:1.5rem}.monthly-bars{grid-template-columns:repeat(12,1fr);align-items:end;gap:8px;height:200px;padding:20px 0;display:grid}.bar-container{flex-direction:column;justify-content:flex-end;align-items:center;height:100%;display:flex}.bar{background-color:var(--accent-primary);border-radius:4px 4px 0 0;width:100%;min-height:4px;transition:height .3s}.bar-label{color:var(--text-muted);margin-top:4px;font-size:.7rem}@media (width<=768px){.sidebar{display:none}.main-content{margin-left:0;padding:16px}.stats-grid{grid-template-columns:1fr 1fr}.monthly-bars{grid-template-columns:repeat(6,1fr)}}