:root{--bg-main: #f0f4f8;--panel-bg: rgba(255, 255, 255, .9);--sidebar-bg: #ffffff;--accent: #0ea5e9;--accent-hover: #0284c7;--text-main: #1e293b;--text-muted: #64748b;--text-dim: #94a3b8;--border: #e2e8f0;--panel-shadow: 0 10px 25px -5px rgba(0, 0, 0, .05), 0 8px 10px -6px rgba(0, 0, 0, .05);--badge-bg: #e0f2fe;--badge-text: #0369a1;--badge-bg-alt: #f1f5f9;--badge-text-alt: #475569;--font-main: "Inter", "Segoe UI", system-ui, sans-serif;--glass-border: rgba(255, 255, 255, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background:radial-gradient(circle at top left,#e0f2fe,#f0f4f8);color:var(--text-main);height:100vh;overflow:hidden}.app-layout{display:flex;height:100vh}.sidebar{width:260px;background-color:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:24px 0;box-shadow:4px 0 24px #00000005}.logo-container{padding:0 24px 40px}.logo-text{font-size:1.25rem;font-weight:800;letter-spacing:1px;color:#0c4a6e}.logo-text .highlight{color:var(--accent)}.subtitle{font-size:.75rem;color:var(--text-muted);margin-top:4px;font-weight:500}.main-nav{display:flex;flex-direction:column;gap:8px;padding:0 12px}.nav-btn{display:flex;align-items:center;gap:12px;padding:12px 16px;background:none;border:none;color:var(--text-muted);font-size:.95rem;font-weight:600;cursor:pointer;border-radius:12px;transition:all .2s cubic-bezier(.4,0,.2,1);text-align:left}.nav-btn:hover{background:#f1f5f9;color:var(--accent);transform:translate(4px)}.nav-btn.active{background:var(--badge-bg);color:var(--accent);box-shadow:0 4px 12px #0ea5e91a}.content-area{flex:1;padding:32px 40px;overflow-y:auto;scroll-behavior:smooth}.content-header{margin-bottom:32px}.content-header h2{font-size:1.5rem;font-weight:800;color:#0c4a6e;letter-spacing:-.025em}.grid-container{display:grid;grid-template-columns:440px 1fr;gap:24px;align-items:start}.panel{background:var(--panel-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:20px;padding:28px;box-shadow:var(--panel-shadow)}.panel-title{font-size:1.05rem;font-weight:700;color:#0c4a6e;margin-bottom:24px;display:flex;align-items:center;justify-content:space-between}.panel-title .small{font-size:.8rem;font-weight:500;color:var(--text-muted)}.direction-select{display:flex;background:#f1f5f9;border-radius:12px;padding:4px;margin-bottom:24px;border:1px solid var(--border)}.direction-select .radio-label{flex:1;cursor:pointer;position:relative}.direction-select .radio-label input{display:none}.direction-select .radio-label span{display:block;text-align:center;padding:10px;border-radius:9px;font-size:.85rem;font-weight:700;color:var(--text-muted);transition:all .25s}.direction-select .radio-label input:checked+span{background-color:#fff;color:var(--accent);box-shadow:0 4px 6px -1px #0000001a}.input-info{display:flex;flex-direction:column;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid #f1f5f9}.input-info .label{font-size:.75rem;font-weight:700;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em}.input-info .value{font-size:1.15rem;font-weight:800;color:#0c4a6e}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:8px}.select-wrapper{position:relative}select,input[type=number],input[type=text]{width:100%;background:#f8fafc;border:2px solid transparent;border-radius:12px;padding:14px 18px;color:var(--text-main);font-family:inherit;font-size:1rem;font-weight:500;outline:none;transition:all .2s}select:focus,input:focus{background:#fff;border-color:var(--accent);box-shadow:0 0 0 4px #0ea5e91a}.primary-btn{width:100%;background:linear-gradient(135deg,var(--accent),#0284c7);color:#fff;border:none;border-radius:14px;padding:16px;font-size:1.05rem;font-weight:800;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px #0ea5e94d;margin-top:10px}.primary-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0ea5e966}.primary-btn:active{transform:translateY(0)}.output-panel{margin-top:24px;padding:24px;background:linear-gradient(to bottom right,#f0f9ff,#fff)}.output-item{margin-bottom:24px}.output-item:last-child{margin-bottom:0}.output-value-container{display:flex;align-items:center;gap:12px;margin-top:8px}.output-value{font-family:JetBrains Mono,Fira Code,monospace;font-size:1.35rem;font-weight:800;color:#0c4a6e}.badge{padding:5px 12px;border-radius:8px;font-size:.7rem;font-weight:800;letter-spacing:.5px}.badge.secure{background-color:#dcfce7;color:#15803d;border:1px solid #bbf7d0}.badge.secured-alt{background-color:#e0f2fe;color:#0369a1;border:1px solid #bae6fd}.copy-small{margin-left:auto;background:#fff;border:1px solid var(--border);color:var(--text-muted);padding:6px 12px;border-radius:10px;font-size:.75rem;font-weight:700;cursor:pointer;transition:all .2s}.copy-small:hover{border-color:var(--accent);color:var(--accent);background:var(--badge-bg)}.map-panel{display:flex;flex-direction:column;height:calc(100vh - 160px)}#map-container{height:calc(100% - 80px);position:relative;border-radius:20px;overflow:hidden;margin-bottom:24px;box-shadow:inset 0 2px 4px #0000000d;border:1px solid var(--border)}.map-overlay{position:absolute;top:16px;right:16px;z-index:1000}.overlay-btn{background:#fff;border:none;color:#0c4a6e;padding:10px 20px;border-radius:12px;cursor:pointer;font-size:.85rem;font-weight:700;box-shadow:0 4px 12px #0000001a;transition:all .2s}.overlay-btn:hover{background:#f8fafc;transform:scale(1.05)}.status-footer{display:flex;justify-content:space-between;border-top:1px solid #f1f5f9;padding-top:24px}.status-item{display:flex;align-items:center;gap:10px;font-size:.85rem;font-weight:600}.status-item .label{color:var(--text-muted)}.status-item .value{color:var(--text-main)}.status-item .highlight{color:var(--accent)}.icon.success{color:#0f8}.bulk-panel{max-width:900px;margin:0 auto}.direction-toggle{display:flex;background:#25292e;border-radius:8px;padding:4px;margin-bottom:32px}.toggle-btn{flex:1;background:none;border:none;color:var(--text-muted);padding:10px;font-weight:600;cursor:pointer;border-radius:6px;transition:all .2s}.toggle-btn.active{background-color:var(--panel-bg);color:var(--accent);box-shadow:0 2px 4px #0003}.upload-zone{border:3px dashed var(--border);border-radius:24px;padding:80px 40px;text-align:center;transition:all .3s;cursor:pointer;background:#fff6}.upload-zone:hover{border-color:var(--accent);background:var(--badge-bg);transform:scale(1.01)}.upload-icon{color:var(--accent);margin-bottom:20px}.upload-zone h3{margin-bottom:12px}.upload-zone p{color:var(--text-muted);margin-bottom:32px}#file-input{display:none}.leaflet-container{background:#181b20!important}.leaflet-bar a{background-color:var(--panel-bg)!important;color:var(--text-main)!important;border-color:var(--border)!important}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@media(max-width:1024px){.grid-container{grid-template-columns:1fr;gap:16px}.content-area{padding:24px}.map-panel{height:400px}}@media(max-width:768px){.app-layout{flex-direction:column}.sidebar{width:100%;height:auto;padding:0;flex-direction:row;position:fixed;bottom:0;left:0;z-index:2000;border-right:none;border-top:1px solid var(--border);justify-content:space-around;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.logo-container{display:none}.main-nav{flex-direction:row;width:100%;padding:10px;justify-content:space-around;gap:0}.nav-btn{flex-direction:column;padding:8px;font-size:.7rem;gap:4px;flex:1;justify-content:center;align-items:center;border-radius:10px}.nav-btn svg{width:24px;height:24px}.content-area{padding:20px 20px 100px;height:100vh}.content-header h2{font-size:1.2rem}.panel{padding:16px}.map-panel{height:400px}.grid-container{display:flex;flex-direction:column}.input-panel{order:1}.map-panel{order:2}.output-value{font-size:1.1rem}.status-footer{flex-direction:column;gap:12px;align-items:flex-start}}@media(max-width:480px){.content-area{padding:12px 12px 85px}.panel-title{flex-direction:column;align-items:flex-start;gap:8px}.output-value-container{flex-wrap:wrap;gap:8px}.copy-small{margin-left:0}.output-value{font-size:1.1rem}.output-value-container{flex-wrap:wrap}}.tab-content{display:none}.tab-content.active{display:block;animation:fadeIn .4s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}