:root{--header-height: 56px;--sidebar-width: 260px;--primary: #1976d2;--primary-dark: #1565c0;--primary-light: #e3f2fd;--secondary: #f50057;--bg: #f5f7fa;--surface: #ffffff;--text: #212121;--text-secondary: #666;--border: #e0e0e0;--success: #4caf50;--warning: #ff9800;--error: #f44336;--info: #2196f3;--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.08);--shadow-lg: 0 4px 16px rgba(0,0,0,.12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{text-decoration:none;color:inherit}ul{list-style:none}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:.95rem}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-body{display:flex;flex:1;margin-top:var(--header-height)}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--primary);color:#fff;display:flex;align-items:center;padding:0 20px;z-index:1000;box-shadow:0 2px 4px #0003}.header__logo{font-size:1.25rem;font-weight:700;margin-right:30px;white-space:nowrap;display:flex;align-items:center;gap:8px}.header__nav{display:flex;gap:4px}.header__nav a{padding:8px 16px;border-radius:var(--radius);font-size:.9rem;font-weight:500;transition:background .2s;color:#ffffffe6}.header__nav a:hover,.header__nav a.active{background:#ffffff26;color:#fff}.header__spacer{flex:1}.header__search{position:relative;margin-right:12px}.header__search input{padding:6px 12px 6px 32px;border:1px solid rgba(255,255,255,.3);border-radius:20px;background:#ffffff26;color:#fff;font-size:.85rem;width:200px;outline:none;transition:all .2s}.header__search input::placeholder{color:#fff9}.header__search input:focus{background:#ffffff40;border-color:#ffffff80;width:240px}.header__search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;opacity:.6}.header__actions{display:flex;gap:8px;align-items:center}.header__icon-btn{background:none;border:none;color:#fffc;padding:6px;border-radius:50%;transition:all .2s;display:flex;align-items:center}.header__icon-btn:hover{background:#ffffff26;color:#fff}.header__icon-btn svg{width:20px;height:20px}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);height:calc(100vh - var(--header-height));overflow-y:auto;position:sticky;top:var(--header-height)}.sidebar__title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);padding:16px 16px 8px}.sidebar__item{display:flex;align-items:center;gap:10px;padding:10px 16px;font-size:.9rem;color:var(--text-secondary);transition:all .15s;cursor:pointer;border-left:3px solid transparent}.sidebar__item:hover{background:var(--primary-light);color:var(--primary)}.sidebar__item.active{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary);font-weight:600}.sidebar__item svg{width:20px;height:20px;flex-shrink:0}.main-content{flex:1;padding:24px;overflow-y:auto;min-height:calc(100vh - var(--header-height))}.page-title{font-size:1.5rem;font-weight:700;margin-bottom:8px}.page-subtitle{font-size:.95rem;color:var(--text-secondary);margin-bottom:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}.card__title{font-size:1.1rem;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:6px}.form-control{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:.95rem;transition:border-color .2s,box-shadow .2s;background:var(--surface)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #1976d21a}.form-control:disabled{background:#f5f5f5;cursor:not-allowed}textarea.form-control{min-height:100px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:.9rem;font-weight:500;transition:all .2s;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:#e0e0e0;color:var(--text)}.btn-secondary:hover{background:#d0d0d0}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#43a047}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover{background:#e53935}.btn-warning{background:var(--warning);color:#fff}.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary-light)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-icon{width:40px;height:40px;padding:0;border-radius:50%}.btn-sm{padding:6px 14px;font-size:.8rem}.btn-lg{padding:14px 28px;font-size:1rem}.btn-loading{position:relative;color:transparent!important}.btn-loading:after{content:"";position:absolute;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}.toggle-btn{position:relative;width:48px;height:26px;background:#ccc;border:none;border-radius:13px;cursor:pointer;transition:background .2s}.toggle-btn.active{background:var(--primary)}.toggle-btn:after{content:"";position:absolute;width:22px;height:22px;background:#fff;border-radius:50%;top:2px;left:2px;transition:transform .2s;box-shadow:0 1px 3px #0003}.toggle-btn.active:after{transform:translate(22px)}.grid-2{display:grid;grid-template-columns:1fr 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var(--border);border-radius:var(--radius);font-size:.95rem;background:var(--surface);cursor:pointer}.tag{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;font-size:.8rem;font-weight:500}.tag-primary{background:var(--primary-light);color:var(--primary)}.tag-success{background:#e8f5e9;color:var(--success)}.tag-warning{background:#fff3e0;color:var(--warning)}.tag-error{background:#ffebee;color:var(--error)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .2s}.modal{background:var(--surface);border-radius:var(--radius);padding:24px;min-width:400px;max-width:90vw;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp .2s}.modal__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}.modal__title{font-size:1.1rem;font-weight:600}.modal__close{background:none;border:none;font-size:1.5rem;color:var(--text-secondary);line-height:1;padding:4px}.toast-container{position:fixed;top:70px;right:20px;z-index:3000;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:var(--radius);color:#fff;font-size:.9rem;box-shadow:var(--shadow-lg);animation:slideIn .3s;min-width:280px}.toast-success{background:var(--success)}.toast-error{background:var(--error)}.toast-warning{background:var(--warning)}.toast-info{background:var(--info)}.snackbar{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#333;color:#fff;padding:12px 24px;border-radius:var(--radius);font-size:.9rem;z-index:3000;animation:slideUp .3s;display:flex;align-items:center;gap:16px}.snackbar button{background:none;border:none;color:var(--info);font-weight:600;font-size:.85rem}.progress-bar{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.progress-bar__fill{height:100%;background:var(--primary);border-radius:4px;transition:width .3s}.spinner{width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.skeleton{background:linear-gradient(90deg,#eee 25%,#f5f5f5,#eee 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius)}.skeleton-text{height:16px;margin-bottom:8px}.skeleton-title{height:24px;width:60%;margin-bottom:12px}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:40px;text-align:center;cursor:pointer;transition:all 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button.active{background:var(--primary);color:#fff;border-color:var(--primary)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media (max-width: 1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}}@media (max-width: 768px){:root{--sidebar-width: 0px}.sidebar{position:fixed;left:-260px;width:260px;z-index:999;transition:left .3s}.sidebar.open{left:0}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.header__nav{display:none}.header__search input{width:140px}.modal{min-width:auto;width:90vw}}@media (max-width: 480px){.main-content{padding:16px}.header__search{display:none}.card{padding:16px}}.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}.infinite-scroll-container{max-height:400px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius)}.infinite-scroll-item{padding:16px;border-bottom:1px solid var(--border)}.sticky-element{position:sticky;top:0;background:var(--primary);color:#fff;padding:12px 16px;z-index:10;font-weight:600}.activity-feed{display:flex;flex-direction:column;gap:12px}.activity-item{display:flex;gap:12px;padding:12px;border-radius:var(--radius);transition:background .15s}.activity-item:hover{background:var(--bg)}.activity-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;margin-top:6px}.notification-card{display:flex;gap:12px;padding:12px;border:1px solid var(--border);border-radius:var(--radius);align-items:flex-start}.notification-card.unread{border-left:3px solid var(--primary);background:var(--primary-light)}.api-method-badge{display:inline-block;padding:4px 10px;border-radius:4px;font-size:.75rem;font-weight:700;color:#fff;text-transform:uppercase}.api-method-badge.get{background:var(--success)}.api-method-badge.post{background:var(--info)}.api-method-badge.put{background:var(--warning)}.api-method-badge.delete{background:var(--error)}.api-response{background:#1e1e1e;color:#d4d4d4;padding:16px;border-radius:var(--radius);font-family:Cascadia Code,Fira Code,monospace;font-size:.85rem;overflow-x:auto;white-space:pre-wrap;max-height:400px;overflow-y:auto}.home-hero{text-align:center;padding:48px 24px;background:linear-gradient(135deg,var(--primary) 0%,#1565c0 100%);color:#fff;border-radius:var(--radius);margin-bottom:32px}.home-hero h1{font-size:2rem;margin-bottom:12px}.home-hero p{font-size:1.1rem;opacity:.9;max-width:600px;margin:0 auto}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;transition:transform .2s,box-shadow .2s}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.feature-card__icon{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem}.feature-card h3{margin-bottom:8px}.feature-card p{color:var(--text-secondary);font-size:.9rem}.hamburger{display:none;background:none;border:none;color:#fff;padding:6px;margin-right:12px}.hamburger svg{width:24px;height:24px}@media (max-width: 768px){.hamburger{display:flex}}.sidebar-overlay{display:none}@media (max-width: 768px){.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:998}}.editable-cell{cursor:pointer;padding:4px;border-radius:4px;min-height:24px}.editable-cell:hover{background:var(--primary-light)}.editable-cell input{width:100%;padding:4px;border:1px solid var(--primary);border-radius:4px;font-size:inherit}.expand-btn{background:none;border:none;font-size:1.2rem;cursor:pointer;color:var(--text-secondary);transition:transform .2s}.expand-btn.expanded{transform:rotate(90deg)}.expanded-content{background:var(--bg);padding:16px}.masked-input-wrapper{position:relative}.masked-input-wrapper .toggle-mask{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:.85rem}.tag-selector{display:flex;flex-wrap:wrap;gap:8px;padding:8px;border:1px solid var(--border);border-radius:var(--radius);min-height:44px;align-items:center}.tag-selector .tag{display:flex;align-items:center;gap:4px}.tag-selector .tag button{background:none;border:none;font-size:1rem;line-height:1;cursor:pointer;opacity:.7}.tag-selector input{border:none;outline:none;flex:1;min-width:100px;font-size:.9rem}.autocomplete-wrapper{position:relative}.autocomplete-list{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);max-height:200px;overflow-y:auto;z-index:50;box-shadow:var(--shadow)}.footer{background:#1a2332;color:#cbd5e1;margin-top:auto}.footer a{color:#93c5fd;transition:color .2s}.footer a:hover{color:#60a5fa;text-decoration:underline}.footer__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:40px 32px 24px;max-width:1200px;margin:0 auto}.footer__title{color:#f1f5f9;font-size:1rem;font-weight:700;margin-bottom:12px}.footer__desc{font-size:.88rem;line-height:1.7}.footer__links ul{display:flex;flex-direction:column;gap:8px}.footer__links a{font-size:.88rem}.footer__highlight-link{display:inline-block;margin-top:12px;font-weight:600;font-size:.9rem}.footer__bottom{text-align:center;padding:16px 24px;border-top:1px solid #2d3d52;font-size:.82rem}.footer__promo{margin-top:6px;font-size:.8rem;opacity:.85}@media (max-width: 768px){.footer__grid{grid-template-columns:1fr;gap:24px;padding:28px 20px 16px}}@media (max-width: 480px){.footer__grid{padding:20px 16px 12px}.footer__bottom{padding:12px 16px}}.autocomplete-item{padding:10px 12px;cursor:pointer;transition:background .15s;font-size:.9rem}.autocomplete-item:hover,.autocomplete-item.highlighted{background:var(--primary-light)}.image-preview{width:120px;height:120px;border-radius:var(--radius);object-fit:cover;border:1px solid var(--border)}.multi-select{position:relative}.multi-select__selected{display:flex;flex-wrap:wrap;gap:4px;padding:8px;border:1px solid var(--border);border-radius:var(--radius);min-height:44px;cursor:pointer;align-items:center}.multi-select__dropdown{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);max-height:200px;overflow-y:auto;z-index:50;box-shadow:var(--shadow)}.multi-select__option{padding:10px 12px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:background .15s}.multi-select__option:hover{background:var(--primary-light)}.docs-section{margin-bottom:32px}.docs-section h2{font-size:1.3rem;margin-bottom:12px;color:var(--primary)}.docs-section h3{font-size:1.1rem;margin-bottom:8px;margin-top:16px}.code-block{background:#1e1e1e;color:#d4d4d4;padding:16px;border-radius:var(--radius);font-family:Cascadia Code,Fira Code,monospace;font-size:.85rem;overflow-x:auto;margin:12px 0}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.mt-16{margin-top:16px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.text-center{text-align:center}.w-full{width:100%}.help-text{font-size:.8rem;color:var(--text-secondary);margin-top:4px}