:root{--ink:#173e2b;--green:#16834b;--green2:#0f6839;--leaf:#e2f6e9;--sky:#e1f5fa;--line:#d1e7d8;--muted:#61776a;--bg:#f2faf5;--white:#fff;--danger:#b93838}*{box-sizing:border-box}body{margin:0;font:16px/1.55 Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}button,input{font:inherit}button,a{transition:.15s}a{text-decoration:none;color:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:232px 1fr}.sidebar{background:#e4f5e9;border-right:1px solid #bfddca;padding:27px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;font-size:1.6rem;font-weight:850;letter-spacing:.12em;margin:0 10px 40px}.brand img{width:38px}.nav-title,.eyebrow{font-size:.74rem;letter-spacing:.13em;font-weight:750;color:#3e7354}.sidebar nav{display:grid;gap:6px}.sidebar nav a{padding:12px 14px;border-radius:8px;display:flex;gap:12px;color:#315d42}.sidebar nav a:hover{background:#d2eedc}.sidebar nav a.active{background:var(--green);color:#fff;box-shadow:0 6px 16px #16834b25}.trail-note{margin-top:auto;padding:17px;border:1px solid #b8dcc4;background:#f8fff9;border-radius:12px}.trail-note p{font-size:.78rem;color:var(--muted);margin:7px 0 0}.logout button{margin-top:12px;width:100%;border:0;background:transparent;color:#496b53;padding:8px;cursor:pointer}.main{min-width:0}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 34px;color:var(--muted);font-size:.86rem}.topbar b{background:var(--leaf);color:#24633f;border:1px solid #b9dfc9;padding:5px 8px;border-radius:6px;font-size:.72rem;letter-spacing:.06em}.menu{display:none;border:0;background:transparent;font-size:1.4rem}.workspace{padding:31px 36px;max-width:1500px;margin:auto}.page-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:24px}.page-head h1{font-size:2rem;line-height:1.2;margin:7px 0}.page-head p{color:var(--muted);margin:0}.button{border:1px solid #c5ddce;background:#fff;color:var(--ink);min-height:42px;padding:9px 16px;border-radius:8px;font-weight:650;cursor:pointer}.button:hover{background:#e8f7ed}.button.primary{background:var(--green);border-color:var(--green);color:#fff}.button.primary:hover{background:var(--green2)}.panel{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 5px 22px #1d673608;overflow:hidden}.empty{padding:70px 25px;text-align:center}.empty .symbol{width:60px;height:60px;border-radius:16px;background:var(--leaf);display:grid;place-items:center;margin:0 auto 18px;font-size:1.5rem;color:var(--green)}.empty h2{margin:0 0 8px}.empty p{color:var(--muted);max-width:460px;margin:0 auto 22px}.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-bottom:22px}.stat{padding:22px;border-right:1px solid #e6f0e9}.stat:last-child{border:0}.stat span{color:var(--muted);font-size:.82rem}.stat strong{font-size:1.55rem;display:block;margin-top:7px}.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px}.stack{display:grid;gap:22px}.panel-head{padding:18px 21px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}.panel-head h2{font-size:1rem;margin:0}.route{height:390px;background:linear-gradient(145deg,#e4f5e9,#e1f5fa);padding:25px}.route svg,.elevation svg{width:100%;height:100%;display:block}.route polyline{fill:none;stroke:var(--green);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.route circle:first-of-type{fill:#1685a0}.route circle:last-of-type{fill:#16834b}.elevation{height:190px;padding:18px}.elevation polyline{fill:none;stroke:#1685a0;stroke-width:3}.meta{padding:20px}.meta dl{margin:0}.meta div{display:flex;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px solid #edf3ef}.meta div:last-child{border:0}.meta dt{color:var(--muted)}.meta dd{margin:0;text-align:right;font-weight:650}.history{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.card{padding:22px}.card h2{margin:8px 0 4px;font-size:1.15rem}.card p{margin:0;color:var(--muted)}.card-stats{display:flex;gap:24px;margin:22px 0;color:var(--muted);font-size:.78rem}.card-stats strong{display:block;color:var(--ink);font-size:1rem}.card-foot{padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.card-foot span{font-size:.78rem;color:var(--muted)}.card-foot a{color:var(--green);font-weight:700}.device-grid{display:grid;grid-template-columns:1fr 330px;gap:22px}.device-box{padding:27px}.device-icon{width:66px;height:66px;border-radius:16px;display:grid;place-items:center;background:var(--leaf);font-size:1.7rem;color:var(--green)}.device-box h2{margin:18px 0 7px}.device-box p{color:var(--muted)}.device-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}.device-list div{padding:15px;background:#f6fbf8;border-radius:9px}.device-list span{display:block;font-size:.8rem;color:var(--muted)}.device-list strong{display:block;margin-top:5px}.info{padding:24px;background:var(--sky);border-color:#b7dfe9}.alert{padding:12px 14px;border-radius:8px;background:#fff0f0;color:var(--danger);margin:14px 0}.loading{padding:70px;text-align:center;color:var(--muted)}.toast{position:fixed;right:22px;bottom:22px;background:#173e2b;color:#fff;padding:12px 16px;border-radius:9px;opacity:0;pointer-events:none;transform:translateY(8px)}.toast.show{opacity:1;transform:none}.login-shell{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top left,#d6f1df,#f2faf5 55%,#dff4fa)}.login-card{width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:35px;box-shadow:0 18px 50px #175a3020}.login-card>img{width:52px}.login-card h1{margin:8px 0 3px;font-size:2.2rem}.login-card>p{color:var(--muted)}.login-card form{display:grid;gap:15px;margin-top:25px}.login-card label{font-weight:650;font-size:.86rem}.login-card input{width:100%;display:block;border:1px solid #bfd7c8;border-radius:8px;padding:11px 12px;margin-top:6px}.importing{opacity:.55;pointer-events:none}@media(max-width:1000px){.detail-grid,.device-grid{grid-template-columns:1fr}.history{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid #e6f0e9}}@media(max-width:760px){.app-shell{display:block}.sidebar{position:fixed;z-index:10;width:245px;transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}.menu{display:block}.topbar{padding:0 17px}.topbar>span{display:none}.workspace{padding:23px 17px}.page-head{align-items:start;flex-direction:column}.route{height:320px;padding:15px}.stats{grid-template-columns:1fr 1fr}.stat{padding:17px}.stat strong{font-size:1.25rem}.device-list{grid-template-columns:1fr}}