:root{--primary-color: #2563eb;--secondary-color: #1e40af;--success-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--bg-light: #f9fafb;--bg-white: #ffffff;--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1)}.login-form{display:flex;flex-direction:column;gap:24px;max-width:420px;margin:0 auto;padding:40px;background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.form-header{text-align:center;margin-bottom:16px}.form-title{margin:0 0 8px;font-size:28px;font-weight:700;color:var(--text-primary);background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.form-subtitle{margin:0;font-size:14px;color:var(--text-secondary);font-weight:500}.alert{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:10px;font-size:14px;font-weight:500;animation:shake .4s ease-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.alert-icon{width:20px;height:20px;stroke-width:2;flex-shrink:0}.alert-danger{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid #fcd34d}.form-group{display:flex;flex-direction:column;gap:8px}.form-label{display:flex;align-items:center;gap:4px;font-size:14px;font-weight:600;color:var(--text-primary);transition:var(--transition)}.form-label:hover{color:var(--primary-color)}.required{color:var(--danger-color);font-weight:700}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;right:12px;width:20px;height:20px;color:var(--text-secondary);stroke-width:2;pointer-events:none;transition:var(--transition)}.form-input{width:100%;padding:12px 12px 12px 44px;border:2px solid var(--border-color);border-radius:10px;font-size:14px;color:var(--text-primary);background:#fff;transition:var(--transition);font-family:inherit}.form-input::placeholder{color:var(--text-secondary)}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a;background:#f0f9ff}.form-input:hover:not(:focus){border-color:#d1d5db}.form-input:disabled{background:var(--bg-light);color:var(--text-secondary);cursor:not-allowed;opacity:.6}.form-input.error{border-color:var(--danger-color);background:#fef2f2}.form-input.error:focus{box-shadow:0 0 0 3px #ef44441a}.error-message{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--danger-color);font-weight:500;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.error-message:before{content:"";width:4px;height:4px;background:currentColor;border-radius:50%}.password-toggle{position:absolute;left:12px;background:transparent;border:none;cursor:pointer;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;padding:6px;border-radius:6px;transition:var(--transition);font-size:0}.password-toggle:hover{background:var(--bg-light);color:var(--primary-color)}.password-toggle:active{transform:scale(.95)}.password-toggle:disabled{opacity:.5;cursor:not-allowed}.password-toggle svg{width:20px;height:20px;stroke-width:2}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:var(--transition);text-decoration:none;font-family:inherit}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;box-shadow:0 4px 12px #2563eb4d}.btn-primary:hover:not(:disabled){box-shadow:0 6px 20px #2563eb66;transform:translateY(-2px)}.btn-primary:active:not(:disabled){transform:translateY(-1px)}.btn-block{width:100%}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.form-footer{text-align:center;margin-top:8px}.support-text{margin:0;font-size:13px;color:var(--text-secondary);font-weight:500}.support-link{color:var(--primary-color);text-decoration:none;font-weight:600;transition:var(--transition);border-bottom:1px solid transparent}.support-link:hover{color:var(--secondary-color);border-bottom-color:currentColor}@media(max-width:768px){.login-form{padding:32px 24px;border-radius:12px;max-width:100%}.form-title{font-size:24px}.form-input{padding:11px 11px 11px 40px;font-size:16px}.btn{padding:11px 20px;font-size:15px}}@media(max-width:480px){.login-form{padding:24px 16px;gap:20px;border-radius:12px}.form-title{font-size:22px}.form-subtitle{font-size:13px}.form-input{padding:10px 10px 10px 38px;font-size:16px;border-radius:8px}.btn{padding:10px 16px;font-size:14px;border-radius:8px}.alert{padding:10px 12px;gap:10px;font-size:13px;border-radius:8px}}@media(prefers-color-scheme:dark){:root{--text-primary: #f3f4f6;--text-secondary: #d1d5db;--bg-light: #111827;--bg-white: #1f2937;--border-color: #374151}.login-form{background:var(--bg-white);box-shadow:0 10px 30px #0000004d}.form-input{background:var(--bg-light);border-color:var(--border-color);color:var(--text-primary)}.form-input:focus{background:#0f172a}.form-input.error{background:#7f1d1d}.input-wrapper:hover .input-icon{color:var(--primary-color)}}@media print{.login-form{box-shadow:none;border:1px solid var(--border-color)}.btn,.password-toggle{print-color-adjust:exact;-webkit-print-color-adjust:exact}}.btn:focus-visible,.form-input:focus-visible,.password-toggle:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}:root{--primary-color: #2563eb;--secondary-color: #1e40af;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--bg-light: #f9fafb;--bg-white: #ffffff;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1)}.header-wrapper{position:sticky;top:0;z-index:1000;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);box-shadow:var(--shadow-md)}.header-container{max-width:100%;margin:0 auto;padding:0 24px;height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}.header-left{display:flex;align-items:center;gap:20px;flex:1}.header-menu-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 12px;cursor:pointer;color:#fff;display:flex;align-items:center;justify-content:center;transition:var(--transition);font-size:0}.header-menu-btn:hover{background:#ffffff40;border-color:#ffffff4d;transform:scale(1.05)}.header-menu-btn:active{transform:scale(.95)}.menu-icon{width:24px;height:24px;stroke-width:2}.header-brand{display:flex;flex-direction:column;gap:2px;cursor:pointer;transition:var(--transition);text-align:right}.header-brand:hover{transform:translateY(-2px)}.brand-title{font-size:24px;font-weight:700;color:#fff;margin:0;line-height:1;text-shadow:0 2px 4px rgba(0,0,0,.1)}.brand-subtitle{font-size:12px;font-weight:500;color:#ffffffd9;margin:0;letter-spacing:.5px}.header-right{display:flex;align-items:center;gap:16px}.notification-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 12px;cursor:pointer;color:#fff;display:flex;align-items:center;justify-content:center;position:relative;transition:var(--transition)}.notification-btn:hover{background:#ffffff40;border-color:#ffffff4d;transform:scale(1.05)}.notification-btn:active{transform:scale(.95)}.notification-icon-wrapper{position:relative;display:flex;align-items:center;justify-content:center}.notification-icon{width:22px;height:22px;stroke-width:2;animation:bell-ring .5s ease-in-out}.notification-badge{position:absolute;top:-8px;right:-8px;background:#ef4444;color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:10px;border:2px solid var(--primary-color);min-width:20px;text-align:center;animation:pulse 2s infinite}@keyframes bell-ring{0%,to{transform:rotate(0)}25%{transform:rotate(15deg)}75%{transform:rotate(-15deg)}}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}.profile-menu{position:relative}.profile-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:6px 12px;cursor:pointer;color:#fff;display:flex;align-items:center;gap:8px;transition:var(--transition);max-width:200px}.profile-btn:hover{background:#ffffff40;border-color:#ffffff4d;transform:scale(1.05)}.profile-btn:active{transform:scale(.95)}.user-avatar{width:36px;height:36px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.3);overflow:hidden;flex-shrink:0}.avatar-image{width:100%;height:100%;object-fit:cover}.avatar-icon{width:18px;height:18px;stroke-width:2;color:#fff}.user-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:none;text-align:right}@media(min-width:1024px){.header-menu-btn{display:none}.user-name{display:inline}}.profile-dropdown{position:absolute;top:100%;left:0;margin-top:8px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);border:1px solid var(--border-color);min-width:280px;overflow:hidden;animation:slideDown .2s ease-out;z-index:1010}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-header{padding:16px;background:var(--bg-light);border-bottom:1px solid var(--border-color)}.dropdown-user-info{display:flex;align-items:center;gap:12px}.dropdown-avatar{width:44px;height:44px;border-radius:50%;background:var(--primary-color);display:flex;align-items:center;justify-content:center;color:#fff;font-size:0;flex-shrink:0;overflow:hidden}.dropdown-avatar img{width:100%;height:100%;object-fit:cover}.dropdown-avatar svg{width:20px;height:20px;stroke-width:2}.dropdown-text{flex:1;min-width:0}.dropdown-name{margin:0;font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dropdown-phone{margin:2px 0 0;font-size:12px;color:var(--text-secondary)}.dropdown-divider{height:1px;background:var(--border-color)}.dropdown-items{padding:8px}.dropdown-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;background:transparent;border:none;border-radius:8px;cursor:pointer;color:var(--text-primary);font-size:14px;font-weight:500;transition:var(--transition);text-align:right}.dropdown-item:hover{background:var(--bg-light);color:var(--primary-color)}.dropdown-item:active{background:#e0e7ff}.dropdown-item svg{width:18px;height:18px;stroke-width:2;flex-shrink:0;color:currentColor}.dropdown-logout{display:flex;align-items:center;gap:12px;width:100%;padding:12px 8px;margin:8px;background:#fee2e2;border:none;border-radius:8px;cursor:pointer;color:#dc2626;font-size:14px;font-weight:600;transition:var(--transition);text-align:right}.dropdown-logout:hover{background:#fecaca;transform:translate(2px)}.dropdown-logout:active{transform:translate(4px)}.dropdown-logout svg{width:18px;height:18px;stroke-width:2;flex-shrink:0}.header-divider{height:1px;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.2) 50%,transparent 100%)}@media(max-width:768px){.header-container{padding:0 16px;height:70px;gap:12px}.brand-title{font-size:20px}.brand-subtitle{font-size:11px}.profile-dropdown{min-width:240px}.header-right{gap:12px}.profile-btn{padding:6px 8px}.user-avatar{width:32px;height:32px}}@media(max-width:480px){.header-container{padding:0 12px;height:64px;gap:8px}.brand-title{font-size:18px}.brand-subtitle{display:none}.header-left{gap:12px}.profile-dropdown{min-width:220px}}@media(prefers-color-scheme:dark){:root{--text-primary: #f3f4f6;--text-secondary: #d1d5db;--bg-white: #1f2937;--bg-light: #111827}.profile-dropdown{background:var(--bg-white);border-color:#374151}.dropdown-header{background:var(--bg-light);border-bottom-color:#374151}.dropdown-divider{background:#374151}.dropdown-item:hover{background:var(--bg-light)}}:root{--primary-color: #2563eb;--secondary-color: #1e40af;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--bg-light: #f9fafb;--bg-white: #ffffff;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1);--sidebar-width: 280px;--sidebar-width-sm: 240px;--sidebar-bg: var(--bg-white);--sidebar-text: var(--text-primary)}.sidebar-overlay{position:fixed;top:0;right:0;width:100%;height:100%;background:#00000080;z-index:999;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.sidebar-wrapper{position:fixed;right:0;top:80px;width:var(--sidebar-width);height:calc(100vh - 80px);background:var(--sidebar-bg);border-left:1px solid var(--border-color);overflow-y:auto;overflow-x:hidden;z-index:1000;transition:var(--transition);box-shadow:var(--shadow-md)}.sidebar-container{display:flex;flex-direction:column;height:100%;padding:0}.sidebar-header{padding:20px 16px;border-bottom:1px solid var(--border-color);background:linear-gradient(135deg,#f0f9ff,#e0f2fe)}.sidebar-logo{display:flex;align-items:center;gap:12px;cursor:pointer;transition:var(--transition)}.sidebar-logo:hover{transform:translateY(-2px)}.logo-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px;box-shadow:var(--shadow-md)}.logo-text{font-size:20px;font-weight:700}.logo-info{flex:1}.logo-info h2{margin:0;font-size:16px;font-weight:700;color:var(--primary-color);line-height:1.2}.logo-info p{margin:2px 0 0;font-size:12px;color:var(--text-secondary);font-weight:500}.sidebar-user-section{padding:12px;border-bottom:1px solid var(--border-color)}.user-card{display:flex;align-items:center;gap:12px;padding:12px;border-radius:10px;background:var(--bg-light);transition:var(--transition)}.user-card:hover{background:#e0e7ff}.user-card-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;overflow:hidden}.user-card-avatar img{width:100%;height:100%;object-fit:cover}.user-card-avatar svg{width:20px;height:20px;stroke-width:2}.user-card-info{flex:1;min-width:0}.user-card-name{margin:0;font-size:13px;font-weight:600;color:var(--sidebar-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-card-role{margin:2px 0 0;font-size:11px;color:var(--text-secondary);font-weight:500}.sidebar-nav{flex:1;overflow-y:auto;padding:12px 0}.nav-list{list-style:none;margin:0;padding:0}.nav-item{margin:4px 8px}.nav-link{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;background:transparent;border:none;border-radius:8px;cursor:pointer;color:var(--text-secondary);font-size:14px;font-weight:500;transition:var(--transition);text-align:right;position:relative;overflow:hidden}.nav-link:before{content:"";position:absolute;right:0;top:0;width:3px;height:100%;background:var(--primary-color);border-radius:8px 0 0 8px;transform:scaleY(0);transition:var(--transition)}.nav-link:hover{background:var(--bg-light);color:var(--primary-color)}.nav-link:hover:before{transform:scaleY(1)}.nav-link.active{background:linear-gradient(135deg,#e0e7ff,#ddd6fe);color:var(--primary-color);font-weight:600}.nav-link.active:before{transform:scaleY(1)}.nav-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px;flex-shrink:0}.nav-icon svg{width:100%;height:100%;stroke-width:2}.nav-label{flex:1;text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-badge{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 6px;background:#ef4444;color:#fff;font-size:11px;font-weight:700;border-radius:11px;flex-shrink:0;animation:pulse 2s infinite}.nav-chevron{display:flex;align-items:center;justify-content:center;width:18px;height:18px;flex-shrink:0;transition:var(--transition);color:var(--text-secondary)}.nav-chevron.expanded{transform:rotate(180deg);color:var(--primary-color)}.nav-chevron svg{width:100%;height:100%;stroke-width:2}.submenu{max-height:0;overflow:hidden;transition:max-height .3s ease-out}.submenu.open{max-height:500px}.submenu-item{list-style:none;margin:0;padding:0}.submenu-link{display:flex;align-items:center;gap:12px;width:100%;padding:8px 12px;margin:0 28px 0 8px;background:transparent;border:none;border-radius:6px;cursor:pointer;color:var(--text-secondary);font-size:13px;font-weight:400;transition:var(--transition);text-align:right;position:relative}.submenu-link:hover{background:var(--bg-light);color:var(--primary-color)}.submenu-link.active{background:linear-gradient(135deg,#e0e7ff,#ddd6fe);color:var(--primary-color);font-weight:500}.submenu-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0;opacity:.4}.submenu-link:hover .submenu-dot,.submenu-link.active .submenu-dot{opacity:1;transform:scale(1.2)}.sidebar-footer{padding:12px;border-top:1px solid var(--border-color);background:var(--bg-light);margin-top:auto}.footer-info{text-align:center;font-size:11px;color:var(--text-secondary);line-height:1.5}.footer-text{margin:0;font-weight:500}.version-label{display:block;color:var(--text-secondary);font-weight:400}.version-number{font-weight:600;color:var(--primary-color)}.footer-company{margin:4px 0 0;font-weight:600;color:var(--text-primary)}.sidebar-nav::-webkit-scrollbar{width:6px}.sidebar-nav::-webkit-scrollbar-track{background:transparent}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px;transition:var(--transition)}.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#bfdbfe}@media(max-width:1024px){:root{--sidebar-width: 240px}.sidebar-wrapper{transform:translate(100%)}.sidebar-wrapper.open{transform:translate(0)}}@media(min-width:1025px){.sidebar-wrapper{transform:translate(0)!important}.sidebar-overlay{display:none!important}}@media(max-width:768px){:root{--sidebar-width: 220px}.sidebar-wrapper{right:0;left:auto;border-left:1px solid var(--border-color);border-right:none;transform:translate(100%)}.sidebar-wrapper.open{transform:translate(0)}.sidebar-overlay{right:0;left:auto}.sidebar-header{padding:16px 12px}.sidebar-nav{padding:8px 0}.nav-item{margin:2px 6px}.nav-link{padding:8px 10px;font-size:13px}.submenu-link{padding:6px 10px;margin-right:24px;font-size:12px}}@media(max-width:480px){:root{--sidebar-width: 200px}.sidebar-header{padding:12px 10px}.logo-icon{width:36px;height:36px;font-size:16px}.logo-info h2{font-size:14px}.logo-info p{font-size:10px}.user-card{padding:8px}.user-card-avatar{width:32px;height:32px}.user-card-name{font-size:12px}.user-card-role{font-size:10px}.nav-link{padding:8px;font-size:12px;gap:8px}.submenu-link{padding:6px 8px;font-size:11px;margin-right:20px}.sidebar-footer{padding:8px}.footer-info{font-size:10px}}@media(prefers-color-scheme:dark){:root{--text-primary: #f3f4f6;--text-secondary: #d1d5db;--bg-light: #111827;--bg-white: #1f2937;--border-color: #374151}.sidebar-header{background:linear-gradient(135deg,#1e3a8a,#1e40af)}.sidebar-overlay{background:#000000b3}.user-card:hover{background:#374151}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}:root{--primary-color: #2563eb;--secondary-color: #1e40af;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--bg-light: #f9fafb;--bg-white: #ffffff;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--transition: all .3s cubic-bezier(.4, 0, .2, 1);--sidebar-width: 280px;--header-height: 80px}.main-layout{display:flex;flex-direction:column;min-height:100vh;background:var(--bg-light)}.main-layout>header{flex-shrink:0}.layout-body{display:flex;flex:1;overflow:hidden;margin-top:var(--header-height)}.layout-main{flex:1;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;transition:var(--transition);margin-right:var(--sidebar-width)}.layout-main.sidebar-closed{margin-right:0}@media(max-width:768px){.layout-main{margin-right:0}.layout-main.sidebar-open{margin-right:var(--sidebar-width)}}@media(min-width:1025px){.layout-main{margin-right:var(--sidebar-width)!important}.layout-content{padding:10px 24px 24px!important}.layout-body{margin-top:10px!important}}.layout-content{flex:1;padding:24px;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.layout-main::-webkit-scrollbar{width:8px}.layout-main::-webkit-scrollbar-track{background:transparent}.layout-main::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px;transition:var(--transition)}.layout-main::-webkit-scrollbar-thumb:hover{background:#bfdbfe}@media(max-width:1024px){:root{--sidebar-width: 240px}.layout-main{margin-right:0}.layout-content{padding:20px}}@media(max-width:768px){:root{--sidebar-width: 220px;--header-height: 70px}.layout-body{margin-top:var(--header-height)}.layout-content{padding:16px}.layout-main{margin-right:0}}@media(max-width:480px){:root{--header-height: 64px}.layout-body{margin-top:var(--header-height)}.layout-content{padding:12px}}.container{max-width:1400px;margin:0 auto}.container-fluid{width:100%}.container-md{max-width:900px;margin:0 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