:root{--brand-teal:#14b8a6;--brand-teal-deep:#0f766e;--brand-navy:#0b1f3a;--brand-navy-soft:#123056;--brand-green:#84cc16;--brand-green-deep:#65a30d;--primary:#0d9488;--primary-hover:#0f766e;--secondary:#14b8a6;--accent:#84cc16;--background:#f0fdfa;--surface:#fff;--surface-hover:#f0fdfa;--text-main:#0b1f3a;--text-muted:#475569;--border:#ccfbf1;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--font-sans:"Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--spacing-xs:.25rem;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--shadow-sm:0 1px 3px 0 #0d948814;--shadow-md:0 4px 6px -1px #0d948814, 0 2px 4px -2px #0b1f3a0f;--shadow-lg:0 10px 15px -3px #0d94881f, 0 4px 6px -4px #0b1f3a14}@media (prefers-color-scheme:dark){:root{--background:#07111f;--surface:#0b1f3a;--surface-hover:#123056;--text-main:#f0fdfa;--text-muted:#94a3b8;--border:#1e3a4c;--shadow-sm:0 1px 3px 0 #00000059;--shadow-md:0 4px 6px -1px #00000059}}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font-sans);background-color:var(--background);color:var(--text-main);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-hover)}button{cursor:pointer;font-family:inherit}.btn{padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);border:none;justify-content:center;align-items:center;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--brand-teal) 0%, var(--brand-teal-deep) 100%);color:#fff;box-shadow:0 2px 8px #0d948847}.btn-primary:hover{background:linear-gradient(135deg, #2dd4bf 0%, var(--brand-teal-deep) 100%);transform:translateY(-1px);box-shadow:0 4px 12px #0d948859}.btn-accent{background-color:var(--accent);color:var(--brand-navy)}.btn-accent:hover{background-color:var(--brand-green-deep);color:#fff}.card{background-color:var(--surface);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);border:1px solid var(--border);transition:transform .2s,box-shadow .2s}.card:hover{box-shadow:var(--shadow-lg)}.container{max-width:1200px;padding:0 var(--spacing-md);margin:0 auto}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-xs{gap:var(--spacing-xs)}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}h1,h2,h3,h4,h5,h6{color:var(--text-main);letter-spacing:-.025em;font-weight:700;line-height:1.2}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}.app-layout{height:100vh;display:flex;overflow:hidden}.sidebar{border-right:1px solid var(--border);width:290px;box-shadow:var(--shadow-sm);z-index:10;background:linear-gradient(#fff 0%,#f0fdfa 100%);flex-direction:column;display:flex}.sidebar-header{padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border);background:linear-gradient(#ecfeff 0%,#fff 100%);flex-direction:column;justify-content:center;align-items:center;gap:.35rem;min-height:118px;display:flex}.sidebar-header img{width:100%;max-width:200px;height:auto;display:block}.sidebar-brand-tag{letter-spacing:.08em;text-transform:uppercase;color:var(--brand-navy);opacity:.75;font-size:.7rem;font-weight:700}.sidebar-nav{padding:var(--spacing-md) var(--spacing-sm);gap:var(--spacing-xs);flex-direction:column;flex:1;display:flex;overflow-y:auto}.nav-item{padding:.75rem var(--spacing-md);color:var(--text-muted);border-radius:var(--radius-md);align-items:center;gap:var(--spacing-sm);font-weight:600;transition:all .2s;display:flex}.nav-item:hover{color:var(--primary);background-color:#14b8a61a}.nav-item.active{color:var(--primary);box-shadow:inset 3px 0 0 var(--brand-teal);background:linear-gradient(90deg,#14b8a629,#84cc1614)}.nav-group{flex-direction:column;gap:2px;display:flex}.nav-parent{text-align:left;width:100%;font:inherit;background:0 0;border:none;justify-content:space-between}.nav-caret{color:var(--text-muted);font-size:.75rem}.nav-children{flex-direction:column;gap:2px;margin-bottom:.25rem;padding-left:.5rem;display:flex}.nav-child{color:var(--text-muted);padding:.55rem .75rem .55rem 1.1rem;font-size:.85rem;font-weight:500}.nav-child.active{color:var(--primary);background-color:#14b8a624;font-weight:600}.main-content{background:radial-gradient(1200px 400px at 100% -10%, #14b8a61f, transparent 60%), radial-gradient(900px 360px at -10% 0%, #84cc1614, transparent 55%), var(--background);flex-direction:column;flex:1;display:flex;overflow:hidden}.header{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);height:76px;padding:0 var(--spacing-xl);box-shadow:var(--shadow-sm);z-index:5;background-color:#ffffffeb}.input-field{padding:.6rem var(--spacing-md);border:1px solid var(--border);border-radius:var(--radius-md);background-color:var(--background);color:var(--text-main);outline:none;width:100%;font-family:inherit;transition:all .2s}.header .input-field{border-radius:var(--radius-full);width:350px}.input-field:focus{border-color:var(--primary);background-color:var(--surface);box-shadow:0 0 0 3px #0d94882e}.icon-btn{padding:var(--spacing-sm);border-radius:var(--radius-full);color:var(--text-muted);background:0 0;border:none;font-size:1.25rem}.icon-btn:hover{color:var(--primary);background-color:#14b8a61f}.avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--brand-teal), var(--brand-navy));color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:.9rem;font-weight:700;display:flex;box-shadow:0 2px 6px #0d948859}.page-content{padding:var(--spacing-xl);flex:1;overflow-y:auto}.brand-bar{background:linear-gradient(90deg, var(--brand-teal), var(--brand-green), var(--brand-navy));width:100%;height:3px}