:root{--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-accent:#14b8a6;--color-danger:#dc2626;--color-warning:#d97706;--color-success:#16a34a;--color-bg:#f4f6fb;--color-surface:#ffffff;--color-text:#1e293b;--color-text-muted:#64748b;--color-border:#e2e8f0;--radius:12px;--shadow-sm:0 1px 3px rgba(15,23,42,0.08);--shadow-md:0 8px 24px rgba(15,23,42,0.10);--sidebar-width:250px;--font:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;--font-heading:var(--font);--bg-gradient:linear-gradient(160deg,#eef2ff 0%,#f4f6fb 45%,#ecfdf5 100%)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--font);background:var(--color-bg);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%}h1,h2,h3,h4{margin:0 0 0.5em;line-height:1.25;font-family:var(--font-heading)}p{margin:0 0 1em}.bg-animated{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--bg-gradient)}.bg-animated svg{position:absolute;width:100%;height:100%}.bg-blob{opacity:0.55;filter:blur(2px);transform-origin:center;animation:float-blob 18s ease-in-out infinite}.bg-blob.b2{animation-duration:24s;animation-delay:-4s}.bg-blob.b3{animation-duration:30s;animation-delay:-10s}.bg-blob.b4{animation-duration:22s;animation-delay:-7s}@keyframes float-blob{0%{transform:translate(0,0) scale(1)}33%{transform:translate(3%,-4%) scale(1.06)}66%{transform:translate(-3%,3%) scale(0.96)}100%{transform:translate(0,0) scale(1)}}.bg-grid-line{stroke:#cbd5e1;stroke-width:1;opacity:0.35}@media (prefers-reduced-motion:reduce){.bg-blob{animation:none}}.container{max-width:1180px;margin:0 auto;padding:0 20px}.surface{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}.card{padding:20px}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,0.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--color-text)}.brand img{height:36px;width:36px;object-fit:cover;border-radius:50%}.site-nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0}.site-nav a{color:var(--color-text);font-weight:500}.site-nav a:hover{color:var(--color-primary);text-decoration:none}.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;line-height:1;cursor:pointer;color:var(--color-text);padding:6px 4px}.hero{padding:90px 0 70px;text-align:center}.hero h1{font-size:2.6rem;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:1.15rem;color:var(--color-text-muted);max-width:640px;margin:0 auto 28px}.site-footer{padding:28px 0;text-align:center;color:var(--color-text-muted);border-top:1px solid var(--color-border);background:var(--color-surface)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:8px;border:1px solid transparent;font-size:0.95rem;font-weight:600;cursor:pointer;transition:all .15s ease;background:var(--color-primary);color:#fff}.btn:hover{background:var(--color-primary-dark);text-decoration:none}.btn.btn-outline{background:transparent;border-color:var(--color-primary);color:var(--color-primary)}.btn.btn-outline:hover{background:var(--color-primary);color:#fff}.btn.btn-danger{background:var(--color-danger)}.btn.btn-danger:hover{background:#b91c1c}.btn.btn-success{background:var(--color-success)}.btn.btn-ghost{background:transparent;color:var(--color-text);border-color:var(--color-border)}.btn.btn-sm{padding:6px 12px;font-size:0.85rem}.btn:disabled{opacity:0.6;cursor:not-allowed}label{display:block;font-weight:600;margin-bottom:6px;font-size:0.9rem}input,select,textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--color-border);font-family:inherit;font-size:16px;background:#fff;color:var(--color-text)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(37,99,235,0.15)}.form-group{margin-bottom:16px}.form-row{display:flex;gap:16px;flex-wrap:wrap}.form-row .form-group{flex:1 1 200px}.help-text{font-size:0.8rem;color:var(--color-text-muted);margin-top:4px}.field-error{color:var(--color-danger);font-size:0.8rem;margin-top:4px}fieldset{border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;margin-bottom:16px}legend{font-weight:700;padding:0 8px}.theme-picker{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.theme-option{display:flex;align-items:center;gap:10px;padding:10px 14px;border:2px solid var(--color-border);border-radius:10px;cursor:pointer;font-weight:500;font-size:0.88rem;margin-bottom:0}.theme-option:hover{border-color:var(--color-primary)}.theme-option.selected{border-color:var(--color-primary);background:rgba(37,99,235,0.06)}.theme-option input[type="radio"]{position:absolute;opacity:0;width:0;height:0}.theme-swatch{display:inline-flex;flex-shrink:0;border-radius:6px;overflow:hidden;box-shadow:var(--shadow-sm)}.theme-swatch-primary,.theme-swatch-accent{width:12px;height:24px}.theme-swatch-primary{background:var(--color-primary)}.theme-swatch-accent{background:var(--color-accent)}.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:0.9rem;border:1px solid transparent}.alert-success{background:#dcfce7;color:#14532d;border-color:#bbf7d0}.alert-danger{background:#fee2e2;color:#7f1d1d;border-color:#fecaca}.alert-warning{background:#fef3c7;color:#78350f;border-color:#fde68a}.alert-info{background:#dbeafe;color:#1e3a8a;border-color:#bfdbfe}#toast-container{position:fixed;top:20px;right:20px;z-index:999;display:flex;flex-direction:column;gap:10px}.toast{min-width:260px;padding:12px 16px;border-radius:8px;color:#fff;box-shadow:var(--shadow-md);animation:toast-in .25s ease}.toast.success{background:var(--color-success)}.toast.error{background:var(--color-danger)}.toast.info{background:var(--color-primary)}@keyframes toast-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);flex-shrink:0;background:#0f172a;color:#e2e8f0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar .brand{color:#fff;padding:20px;border-bottom:1px solid rgba(255,255,255,0.08)}.sidebar .back-to-main{display:flex;align-items:center;gap:6px;color:#93c5fd;font-size:0.82rem;font-weight:600;padding:10px 20px;border-bottom:1px solid rgba(255,255,255,0.08)}.sidebar .back-to-main:hover{color:#fff;text-decoration:none;background:rgba(37,99,235,0.2)}.sidebar nav ul{list-style:none;margin:0;padding:12px}.sidebar nav a{display:flex;align-items:center;gap:10px;color:#cbd5e1;padding:10px 14px;border-radius:8px;margin-bottom:4px;font-weight:500}.sidebar nav a:hover,.sidebar nav a.active{background:rgba(37,99,235,0.25);color:#fff;text-decoration:none}.sidebar .user-box{margin-top:auto;padding:16px;border-top:1px solid rgba(255,255,255,0.08);font-size:0.85rem}.main-content{flex:1;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10}.topbar-title{display:flex;align-items:center;gap:10px;min-width:0}.topbar-title h2{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.content-area{padding:24px}.sidebar-toggle{display:none;flex-shrink:0;background:none;border:none;font-size:1.4rem;line-height:1;cursor:pointer;color:var(--color-text);padding:4px 6px}.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,0.5);z-index:40}.sidebar-backdrop.open{display:block}.quick-add-card{border-top:3px solid var(--color-primary);margin-bottom:24px}.quick-add-submit button{height:42px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:24px}.stat-card{padding:18px 20px}.stat-card .stat-label{color:var(--color-text-muted);font-size:0.85rem;font-weight:600;text-transform:uppercase;letter-spacing:0.03em}.stat-card .stat-value{font-size:1.7rem;font-weight:700;margin-top:6px}.stat-card.up .stat-value{color:var(--color-success)}.stat-card.down .stat-value{color:var(--color-danger)}.chart-grid{display:grid;grid-template-columns:2fr 1fr;gap:18px;margin-bottom:24px}@media (max-width:900px){.chart-grid{grid-template-columns:1fr}}.chart-card{padding:20px}.chart-card h3{font-size:1rem;margin-bottom:12px}.legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px;font-size:0.82rem}.legend-item{display:flex;align-items:center;gap:6px}.legend-swatch{width:10px;height:10px;border-radius:2px;display:inline-block}.messages-layout{display:grid;grid-template-columns:280px 1fr;gap:18px;margin-bottom:24px;align-items:start}.messages-sidebar{padding:0;max-height:640px;overflow-y:auto}.messages-thread{display:flex;flex-direction:column;height:640px}.messages-contact{display:block;padding:14px 16px;border-bottom:1px solid var(--color-border);color:inherit}.messages-contact:hover,.messages-contact.is-active{background:color-mix(in srgb,var(--color-primary) 8%,transparent);text-decoration:none}.messages-thread-header{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex:0 0 auto}.messages-back{display:none;font-size:1.3rem;line-height:1;color:var(--color-text)}.messages-thread-box{flex:1 1 auto;overflow-y:auto;margin-bottom:16px;min-height:0}.messages-bubble-row{margin-bottom:10px;display:flex}.messages-bubble-row.is-outgoing{justify-content:flex-end}.messages-bubble{max-width:78%;padding:8px 12px;border-radius:12px;background:#f1f5f9;color:var(--color-text);word-wrap:break-word}.messages-bubble-row.is-outgoing .messages-bubble{background:var(--color-primary);color:#fff}.messages-bubble-time{font-size:0.7rem;opacity:0.75;margin-top:2px}.messages-compose{display:flex;gap:8px;flex:0 0 auto}.messages-compose input{flex:1;font-size:16px}@media (max-width:760px){.messages-layout{grid-template-columns:1fr;gap:0}.messages-sidebar,.messages-thread{max-height:none;height:auto;border-radius:10px}.messages-layout:not(.has-active) .messages-thread{display:none}.messages-layout.has-active .messages-sidebar{display:none}.messages-thread{height:calc(100vh - 210px);min-height:360px}.messages-back{display:inline-block}.messages-bubble{max-width:88%}}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:0.9rem}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--color-border)}th{font-size:0.78rem;text-transform:uppercase;letter-spacing:0.03em;color:var(--color-text-muted);background:#f8fafc}tbody tr:hover{background:#f8fafc}.text-right{text-align:right}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:0.75rem;font-weight:700}.badge-green{background:#dcfce7;color:#14532d}.badge-red{background:#fee2e2;color:#7f1d1d}.badge-amber{background:#fef3c7;color:#78350f}.badge-gray{background:#e2e8f0;color:#334155}.row-actions{display:flex;gap:8px}.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:18px}.toolbar .filters{display:flex;flex-wrap:wrap;gap:10px}.pagination{display:flex;gap:6px;margin-top:16px;justify-content:center}.pagination a,.pagination span{padding:6px 12px;border-radius:6px;border:1px solid var(--color-border);font-size:0.85rem}.pagination .active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,0.5);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}.modal-backdrop.open{display:flex}.modal{background:#fff;border-radius:var(--radius);width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-md)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--color-border)}.modal-body{padding:22px}.modal-footer{padding:16px 22px;border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:10px}.modal-close{background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--color-text-muted)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--color-border);margin-bottom:18px}.tab-btn{padding:10px 16px;background:none;border:none;cursor:pointer;font-weight:600;color:var(--color-text-muted);border-bottom:2px solid transparent}.tab-btn.active{color:var(--color-primary);border-color:var(--color-primary)}.tab-panel{display:none}.tab-panel.active{display:block}.thumb-empty{width:100%;background:var(--color-border)}.text-muted{color:var(--color-text-muted)}.mt-0{margin-top:0}.mb-0{margin-bottom:0}.flex{display:flex}.items-center{align-items:center}.gap-8{gap:8px}.gap-12{gap:12px}.w-full{width:100%}@media (max-width:820px){.app-shell{flex-direction:column}.sidebar{position:fixed;top:0;left:0;z-index:50;width:260px;max-width:82vw;height:100vh;transform:translateX(-100%);transition:transform 0.25s ease;box-shadow:var(--shadow-md)}.sidebar.open{transform:translateX(0)}.sidebar-toggle{display:inline-flex;align-items:center}.topbar{padding:14px 16px}.content-area{padding:16px}.nav-toggle{display:block}.site-header .container{height:60px}.site-nav{position:absolute;top:60px;left:0;right:0;background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-md);max-height:0;overflow:hidden;transition:max-height 0.25s ease}.site-nav.open{max-height:70vh;overflow-y:auto}.site-nav ul{display:flex;flex-direction:column;gap:0;padding:8px 20px 16px}.site-nav ul li{border-bottom:1px solid var(--color-border)}.site-nav ul li:last-child{border-bottom:none}.site-nav ul li a{display:block;padding:13px 0}.hero{padding:50px 0 40px}.hero h1{font-size:1.9rem}.hero p{font-size:1rem}.container{padding:0 16px}.card{padding:16px}.stat-grid{grid-template-columns:1fr;gap:12px}.chart-grid{gap:12px}.modal-backdrop{padding:0;align-items:flex-end}.modal{max-width:100%;width:100%;max-height:92vh;border-radius:var(--radius) var(--radius) 0 0}.modal-header,.modal-footer{padding:14px 16px}.modal-body{padding:16px}.modal-footer{flex-wrap:wrap}.modal-footer .btn{flex:1 1 auto}.form-row{gap:12px}.toolbar{flex-direction:column;align-items:stretch}.toolbar .filters{width:100%}.toolbar .filters select,.toolbar .filters input{flex:1 1 140px}.row-actions{flex-wrap:wrap}table{font-size:0.82rem}th,td{padding:8px}}