:root{--bg:#071b24;--panel:#092836;--line:#164356;--text:#e8fbff;--muted:#9bb7c1;--accent:#40d6ff;--danger:#ff4b58;--ok:#58e391}*{box-sizing:border-box}html,body{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}button,input,textarea,select{font:inherit}button{border:0;border-radius:14px;background:var(--accent);color:#001b24;font-weight:800;padding:11px 14px}.login-body{min-height:100%;display:grid;place-items:center;padding:22px;background:radial-gradient(circle at top,#12384a,#061720 60%)}.login-card{width:min(430px,100%);background:rgba(9,40,54,.92);border:1px solid var(--line);border-radius:28px;padding:26px;box-shadow:0 25px 80px #0008}.brand{display:flex;align-items:center;gap:9px}.brand span{font-size:24px}.login-card h1{font-size:34px;line-height:1;margin:20px 0 8px}.login-card p,.login-card small{color:var(--muted)}.login-card form{display:grid;gap:14px;margin:22px 0}.login-card label{display:grid;gap:7px;color:var(--muted)}.login-card input,.panel input,.panel textarea{width:100%;border:1px solid var(--line);background:#061923;color:var(--text);border-radius:14px;padding:12px}.panel textarea{min-height:110px;resize:vertical}.alert{background:#ffefb3;color:#3a2b00;border-radius:14px;padding:12px;margin:10px 0}.alert.small{font-size:12px}code{background:#061923;padding:2px 6px;border-radius:6px}#map{position:fixed;inset:0;z-index:1}.topbar{position:fixed;top:calc(env(safe-area-inset-top) + 10px);left:10px;right:10px;z-index:500;display:flex;align-items:center;gap:8px;background:rgba(7,27,36,.82);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(12px);border-radius:20px;padding:8px 10px}.topbar .brand{margin-right:auto}.topbar button,.logout{padding:8px 11px;border-radius:12px;background:#fff;color:#001b24;text-decoration:none;font-weight:800}.instruments{position:fixed;top:calc(env(safe-area-inset-top) + 72px);left:10px;right:10px;z-index:450;display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.instruments div{background:rgba(6,25,35,.86);border:1px solid rgba(255,255,255,.11);border-radius:16px;padding:9px;text-align:center}.instruments small{display:block;color:var(--muted);font-size:10px}.instruments b{font-size:12px}.bottom-nav{position:fixed;bottom:calc(env(safe-area-inset-bottom) + 10px);left:8px;right:8px;z-index:600;display:grid;grid-template-columns:repeat(5,1fr);gap:6px;background:rgba(7,27,36,.84);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(12px);border-radius:22px;padding:8px}.bottom-nav button{font-size:12px;padding:10px 2px;background:#0d3546;color:var(--text)}.fab-stack{position:fixed;right:12px;bottom:calc(env(safe-area-inset-bottom) + 88px);z-index:610;display:grid;gap:10px}.fab{width:52px;height:52px;border-radius:50%;box-shadow:0 8px 24px #0007}.fab.active{background:var(--danger);color:#fff}.panel{position:fixed;left:0;right:0;bottom:0;z-index:700;max-height:76vh;overflow:auto;transform:translateY(105%);transition:.25s ease;background:linear-gradient(180deg,#0b3040,#061923);border-top:1px solid var(--line);border-radius:24px 24px 0 0;padding:20px 16px calc(env(safe-area-inset-bottom) + 92px)}.panel.open{transform:translateY(0)}.panel .close{position:absolute;right:14px;top:12px;background:#12394a;color:#fff;border-radius:50%;width:38px;height:38px;padding:0}.panel h2{margin:4px 48px 6px 0}.panel p{color:var(--muted);font-size:14px}.panel label{display:block;margin:14px 0}.item{border:1px solid var(--line);background:rgba(255,255,255,.03);border-radius:16px;padding:12px;margin:10px 0}.item h3{margin:0 0 6px;font-size:16px}.item p{margin:4px 0}.item .actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.item .actions button,.item .actions a{font-size:12px;padding:8px 10px;border-radius:10px;background:#12394a;color:#fff;text-decoration:none}.stats{background:#061923;border:1px solid var(--line);border-radius:14px;margin:12px 0;padding:12px;color:var(--muted)}.leaflet-control-attribution{font-size:10px}.leaflet-popup-content-wrapper{background:#092836;color:#e8fbff}.leaflet-popup-tip{background:#092836}@media(max-width:520px){.instruments{grid-template-columns:repeat(3,1fr)}}@media(max-width:390px){.instruments{grid-template-columns:repeat(2,1fr)}.bottom-nav button{font-size:11px}.topbar .brand strong{font-size:14px}}

.depth-readout{position:fixed;right:12px;bottom:122px;z-index:800;background:rgba(255,255,255,.94);color:#071b24;border-radius:16px;padding:10px 12px;box-shadow:0 10px 28px rgba(0,0,0,.18);font-size:13px;line-height:1.25;text-align:center;min-width:108px}.depth-readout b{font-size:12px}.depth-readout small{display:block;margin-top:4px;color:#4b6670;font-size:10px}
@media(max-width:680px){.depth-readout{right:10px;bottom:112px;font-size:12px;min-width:96px;padding:8px 10px}}