:root{--brand: #E88A00;--brand-light: #F59E0B;--brand-pale: #FFF4E6;--brand-glow: rgba(232,138,0,.2);--navy: #111827;--navy2: #1F2937;--bg: #F5F6FA;--surface: #FFFFFF;--soft: #F5F6FA;--border: #E5E7EB;--text: #111827;--muted: #6B7280;--subtle: #9CA3AF;--green: #10B981;--green-pale: #ECFDF5;--danger: #EF4444;--danger-pale: #FFF5F5;--blue: #2563EB;--amber: #F59E0B;--white: #FFFFFF;--radius: 14px;--radius-lg: 20px;--shadow: 0 2px 12px rgba(0,0,0,.07);--shadow-md: 0 4px 24px rgba(0,0,0,.1);--transition: .2s ease;--font: "Inter", system-ui, -apple-system, sans-serif;--nav-h: 64px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}ul{list-style:none}button{font-family:var(--font);cursor:pointer}input,textarea,select{font-family:var(--font)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.page{padding-top:calc(var(--nav-h) + 28px);padding-bottom:60px;min-height:100vh}.page-narrow{max-width:680px;margin:0 auto}.section{margin-bottom:32px}.card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);padding:24px}.card-sm{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:16px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.flex-row{display:flex;align-items:center;gap:12px}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-col{display:flex;flex-direction:column;gap:8px}.grow{flex:1}.page-title{font-size:1.8rem;font-weight:900;color:var(--text)}.page-sub{color:var(--muted);font-size:.9rem;font-weight:600;margin-top:4px}.section-label{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin-bottom:10px}.eyebrow{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:var(--brand)}.brand-text{color:var(--brand)}.muted{color:var(--muted)}.danger-text{color:var(--danger)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:800;font-size:.9rem;padding:10px 20px;border-radius:var(--radius);border:none;cursor:pointer;transition:var(--transition);white-space:nowrap}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--brand);color:var(--white)}.btn-primary:hover:not(:disabled){background:var(--brand-light)}.btn-danger{background:var(--danger);color:var(--white)}.btn-danger:hover:not(:disabled){background:#dc2626}.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-outline:hover:not(:disabled){border-color:var(--brand);color:var(--brand);background:var(--brand-pale)}.btn-ghost{background:var(--soft);color:var(--text);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--border)}.btn-sm{padding:7px 14px;font-size:.82rem}.btn-lg{padding:14px 28px;font-size:1rem}.btn-full{width:100%}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-label{font-size:.78rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.form-input{background:var(--soft);border:1px solid var(--border);border-radius:var(--radius);padding:11px 14px;font-size:.95rem;color:var(--text);outline:none;transition:border-color var(--transition);width:100%}.form-input:focus{border-color:var(--brand);background:var(--white)}.form-input.error{border-color:var(--danger)}.form-error{color:var(--danger);font-size:.8rem;font-weight:600}.form-textarea{resize:vertical;min-height:96px}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}.chip-group{display:flex;flex-wrap:wrap;gap:8px}.chip{padding:6px 14px;border-radius:999px;border:1px solid var(--border);font-size:.82rem;font-weight:700;cursor:pointer;transition:var(--transition);background:var(--surface);color:var(--text)}.chip:hover{border-color:var(--brand);color:var(--brand)}.chip.active{background:var(--brand);border-color:var(--brand);color:var(--white)}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:8px;font-size:.75rem;font-weight:800}.badge-green{background:var(--green-pale);color:var(--green)}.badge-amber{background:#fffbeb;color:#92400e}.badge-muted{background:var(--soft);color:var(--muted)}.badge-blue{background:#eff6ff;color:var(--blue)}.badge-danger{background:var(--danger-pale);color:var(--danger)}.divider{height:1px;background:var(--border);margin:16px 0}.divider-v{width:1px;background:var(--border);align-self:stretch}.spinner-wrap{display:flex;align-items:center;justify-content:center;padding:48px;width:100%}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite}.spinner-sm{width:18px;height:18px;border-width:2px}@keyframes spin{to{transform:rotate(360deg)}}.empty{text-align:center;padding:64px 24px}.empty-icon{font-size:3rem;margin-bottom:16px;opacity:.5}.empty h3{font-size:1.1rem;font-weight:900;color:var(--text);margin-bottom:8px}.empty p{color:var(--muted);font-size:.9rem}.toast-container{position:fixed;bottom:24px;right:24px;z-index:1000;display:flex;flex-direction:column;gap:10px}.toast{background:var(--navy);color:var(--white);border-radius:var(--radius);padding:12px 18px;font-size:.88rem;font-weight:700;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-md);min-width:240px;max-width:380px;animation:slideUp .3s ease}.toast.success{border-left:4px solid var(--green)}.toast.error{border-left:4px solid var(--danger)}.toast.info{border-left:4px solid var(--brand)}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:500;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .2s ease}.modal{background:var(--surface);border-radius:var(--radius-lg);padding:28px;width:100%;max-width:440px;box-shadow:var(--shadow-md);animation:scaleIn .2s ease}.modal-title{font-size:1.1rem;font-weight:900;margin-bottom:10px}.modal-body{color:var(--muted);font-size:.92rem;line-height:1.7;margin-bottom:24px}.modal-actions{display:flex;gap:10px}.modal-actions .btn{flex:1}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.auth-root{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--navy) 0%,#1a2235 100%);padding:24px}.auth-card{background:var(--surface);border-radius:var(--radius-lg);padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow-md)}.auth-logo{display:flex;align-items:center;gap:10px;margin-bottom:28px;justify-content:center}.auth-logo img{height:40px}.auth-logo-text{font-size:1.3rem;font-weight:900}.auth-logo-text span{color:var(--brand)}.auth-title{font-size:1.5rem;font-weight:900;margin-bottom:6px}.auth-sub{color:var(--muted);font-size:.88rem;margin-bottom:28px}.auth-footer{text-align:center;margin-top:20px;color:var(--muted);font-size:.87rem}.auth-footer a{color:var(--brand);font-weight:700}.navbar{position:fixed;top:0;left:0;right:0;z-index:200;height:var(--nav-h);background:var(--navy);display:flex;align-items:center;padding:0 20px;box-shadow:0 1px #ffffff0f}.navbar .inner{max-width:1200px;width:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.nav-logo{display:flex;align-items:center;gap:10px}.nav-logo img{height:32px}.nav-logo-text{font-size:1.1rem;font-weight:900;color:var(--white)}.nav-logo-text span{color:var(--brand)}.nav-links{display:flex;align-items:center;gap:4px;flex:1;padding-left:24px}.nav-link{color:#fff9;font-size:.88rem;font-weight:700;padding:7px 12px;border-radius:10px;transition:var(--transition);display:flex;align-items:center;gap:6px}.nav-link:hover{color:var(--white);background:#ffffff12}.nav-link.active{color:var(--brand);background:#e88a001a}.nav-actions{display:flex;align-items:center;gap:8px}.nav-avatar{width:34px;height:34px;border-radius:10px;background:var(--brand-pale);display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:900;color:var(--brand);cursor:pointer;border:2px solid var(--brand)}.nav-dropdown{position:relative}.nav-dropdown-menu{position:absolute;top:calc(100% + 8px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:180px;box-shadow:var(--shadow-md);z-index:300;overflow:hidden}.nav-dropdown-item{display:flex;align-items:center;gap:10px;padding:11px 16px;font-size:.88rem;font-weight:700;color:var(--text);transition:var(--transition);cursor:pointer}.nav-dropdown-item:hover{background:var(--soft);color:var(--brand)}.nav-dropdown-item.danger{color:var(--danger)}.nav-dropdown-item.danger:hover{background:var(--danger-pale)}.hamburger-btn{display:none;background:none;border:none;color:var(--white);font-size:1.4rem;padding:6px}.vehicle-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;cursor:pointer;transition:box-shadow var(--transition),transform var(--transition);display:flex;flex-direction:column}.vehicle-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.vehicle-card-img{width:100%;height:190px;object-fit:cover;background:var(--soft)}.vehicle-card-body{padding:14px;flex:1;display:flex;flex-direction:column;gap:6px}.vehicle-card-title{font-size:.97rem;font-weight:900;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vehicle-card-price{font-size:1.05rem;font-weight:900;color:var(--brand)}.vehicle-card-meta{color:var(--muted);font-size:.8rem;font-weight:700}.vehicle-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.vehicle-card-tag{background:var(--brand-pale);color:var(--text);border-radius:999px;padding:3px 10px;font-size:.75rem;font-weight:800}.vehicle-card-fav{position:absolute;top:10px;right:10px;width:34px;height:34px;border-radius:50%;background:#ffffffe6;border:none;display:flex;align-items:center;justify-content:center;font-size:1rem;cursor:pointer;transition:var(--transition);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.vehicle-card-fav:hover{transform:scale(1.1)}.vehicle-card-img-wrap{position:relative}.search-layout{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start}.search-sidebar{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);padding:20px;position:sticky;top:calc(var(--nav-h) + 24px)}.search-bar{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 16px;margin-bottom:20px}.search-bar input{border:none;outline:none;flex:1;font-size:.95rem;background:transparent;color:var(--text)}.search-results-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.vehicles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.filter-label{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:8px;margin-top:16px}.filter-label:first-child{margin-top:0}.filter-range{display:grid;grid-template-columns:1fr 1fr;gap:8px}.detail-layout{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start}.detail-gallery{border-radius:var(--radius-lg);overflow:hidden;background:var(--soft)}.detail-main-img{width:100%;height:340px;object-fit:cover;cursor:zoom-in}.detail-thumbs{display:flex;gap:8px;padding:10px;overflow-x:auto;background:var(--soft)}.detail-thumb{width:72px;height:54px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent;flex-shrink:0;transition:border-color var(--transition)}.detail-thumb.active{border-color:var(--brand)}.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}.spec-item{background:var(--soft);border-radius:12px;padding:12px}.spec-label{font-size:.72rem;font-weight:800;text-transform:uppercase;color:var(--muted)}.spec-value{font-size:.97rem;font-weight:900;margin-top:4px}.seller-row{display:flex;align-items:center;gap:12px;margin-top:12px}.seller-avatar{width:46px;height:46px;border-radius:12px;background:var(--brand-pale);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}.star-row{display:flex;gap:2px}.chat-layout{display:grid;grid-template-columns:300px 1fr;height:calc(100vh - var(--nav-h));overflow:hidden;margin-top:var(--nav-h)}.chat-list{border-right:1px solid var(--border);background:var(--surface);overflow-y:auto}.chat-list-header{padding:20px 16px 12px;border-bottom:1px solid var(--border)}.chat-list-item{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;border-bottom:1px solid var(--border);transition:background var(--transition)}.chat-list-item:hover{background:var(--soft)}.chat-list-item.active{background:var(--brand-pale);border-right:3px solid var(--brand)}.chat-avatar{width:42px;height:42px;border-radius:12px;background:var(--brand-pale);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}.chat-room{display:flex;flex-direction:column;height:100%}.chat-room-header{padding:16px 20px;border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.chat-messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:10px}.msg{max-width:66%;display:flex;flex-direction:column;gap:3px}.msg.mine{align-self:flex-end;align-items:flex-end}.msg.theirs{align-self:flex-start;align-items:flex-start}.msg-bubble{padding:10px 14px;border-radius:16px;font-size:.9rem;font-weight:600;line-height:1.5}.msg.mine .msg-bubble{background:var(--brand);color:var(--white);border-bottom-right-radius:4px}.msg.theirs .msg-bubble{background:var(--soft);color:var(--text);border-bottom-left-radius:4px}.msg-time{font-size:.72rem;color:var(--muted);font-weight:600}.chat-input-row{padding:14px 16px;border-top:1px solid var(--border);background:var(--surface);display:flex;gap:10px;align-items:flex-end}.chat-input{flex:1;background:var(--soft);border:1px solid var(--border);border-radius:12px;padding:10px 14px;font-size:.9rem;resize:none;max-height:120px;outline:none;color:var(--text)}.chat-input:focus{border-color:var(--brand)}.chat-send-btn{width:42px;height:42px;border-radius:12px;background:var(--brand);border:none;color:var(--white);font-size:1rem;flex-shrink:0;display:flex;align-items:center;justify-content:center}.chat-send-btn:hover:not(:disabled){background:var(--brand-light)}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);padding:18px;display:flex;flex-direction:column;align-items:center;gap:6px;border-top-width:3px}.stat-value{font-size:2rem;font-weight:900}.stat-label{font-size:.78rem;font-weight:800;color:var(--muted);text-transform:uppercase;text-align:center}.profile-card{text-align:center}.profile-avatar{width:72px;height:72px;border-radius:20px;background:var(--brand-pale);display:flex;align-items:center;justify-content:center;font-size:1.8rem;margin:0 auto 14px}.menu-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden}.menu-item{display:flex;align-items:center;gap:12px;padding:14px 18px;cursor:pointer;transition:background var(--transition);border-bottom:1px solid var(--border)}.menu-item:last-child{border-bottom:none}.menu-item:hover{background:var(--soft)}.menu-icon{width:36px;height:36px;border-radius:10px;background:var(--brand-pale);display:flex;align-items:center;justify-content:center;font-size:.9rem;flex-shrink:0}.menu-icon.danger{background:var(--danger-pale)}.menu-label{flex:1;font-size:.95rem;font-weight:700}.menu-label.danger{color:var(--danger)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}.modal-card{background:var(--surface);border-radius:var(--radius-lg);padding:28px;width:100%;max-width:420px;box-shadow:0 20px 60px #0006}@media (max-width: 1024px){.vehicles-grid,.stat-grid{grid-template-columns:repeat(2,1fr)}.detail-layout{grid-template-columns:1fr}}@media (max-width: 768px){.search-layout{grid-template-columns:1fr}.search-sidebar{position:static}.vehicles-grid{grid-template-columns:repeat(2,1fr)}.nav-links{display:none}.hamburger-btn{display:flex}.chat-layout,.grid-2{grid-template-columns:1fr}}@media (max-width: 480px){.vehicles-grid{grid-template-columns:1fr}}