:root{
  --bg:#f4f5f7; --ink:#1f2933; --muted:#677; --line:#dce1e6;
  --card:#fff; --accent:#2f6df0; --accent-d:#2456c7;
  --danger:#d23b3b; --ok:#1f9d55; --shadow:0 1px 3px rgba(0,0,0,.12);
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink); background:var(--bg); -webkit-text-size-adjust:100%;
}
a{color:var(--accent);text-decoration:none}
h1{font-size:1.5rem;margin:.2em 0}
h2{font-size:1.15rem;margin:0 0 .6em}
h3{font-size:1rem;margin:0 0 .4em}
.muted{color:var(--muted)}
.hint{color:var(--muted);font-size:.85rem;margin:.4em 0}
code{background:#eef1f4;padding:.1em .35em;border-radius:4px;font-size:.85em}

/* Topbar */
.topbar{
  display:flex;align-items:center;gap:.5rem;padding:.55rem .8rem;
  background:var(--ink);color:#fff;position:sticky;top:0;z-index:50;
  flex-wrap:wrap;
}
.brand{color:#fff;font-weight:700;font-size:1.1rem;margin-right:.4rem}
.nav{display:flex;gap:.3rem;flex:1;flex-wrap:wrap}
.nav a{color:#cdd6e0;padding:.35rem .6rem;border-radius:8px;font-size:.92rem}
.nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.nav a.accent{background:var(--accent);color:#fff}
.logout button{
  background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;
  border-radius:8px;padding:.3rem .55rem;font-size:1rem;cursor:pointer
}

.container{max-width:1100px;margin:0 auto;padding:1rem .8rem 4rem}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.8rem;flex-wrap:wrap}
.count{background:#e3e8ef;border-radius:20px;padding:.05em .55em;font-size:.85rem;color:var(--muted)}

/* Centered (login/setup) */
.centered{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:1rem}
.card-narrow{background:var(--card);padding:1.6rem;border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:360px}
.logo{text-align:center;margin:.2em 0}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:.4rem;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  padding:.55rem .9rem;border-radius:9px;cursor:pointer;font-size:.95rem;
}
.btn:hover{border-color:#b9c2cc}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-d)}
.btn.small{padding:.3rem .6rem;font-size:.85rem}
.btn.big{padding:.7rem 1.4rem;font-size:1.05rem}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
label.btn input{display:none}

/* Forms */
.stack{display:flex;flex-direction:column;gap:.8rem;margin-top:1rem}
.stack.narrow{max-width:360px}
label{display:flex;flex-direction:column;gap:.25rem;font-size:.9rem;color:#445}
input,select,textarea{
  font:inherit;padding:.55rem .6rem;border:1px solid var(--line);
  border-radius:8px;background:#fff;color:var(--ink);width:100%;
}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd1ff;border-color:var(--accent)}
.alert{background:#fdecec;color:#922;border:1px solid #f3c2c2;padding:.6rem .8rem;border-radius:8px;margin:.6rem 0}
.alert.ok{background:#e7f6ec;color:#1d6b3a;border-color:#bfe6cd}

/* Cards / blocks */
.block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem;margin-bottom:1rem;box-shadow:var(--shadow)}

/* Door form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);padding:1rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.form-grid .full{grid-column:1/-1}
.form-actions{display:flex;gap:.6rem;align-items:center;margin-top:.4rem}
.danger-form{margin-top:1.4rem}

/* Photo */
.photo-row{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}
.photo-preview{width:140px;height:140px;border:1px dashed var(--line);border-radius:8px;
  display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fafbfc}
.photo-preview img{width:100%;height:100%;object-fit:cover}

/* GPS */
.loc-controls{display:flex;align-items:center;gap:.7rem;margin-bottom:.6rem;flex-wrap:wrap}
.gps-status{font-size:.85rem}

/* Aerial / markers */
.aerial-wrap{position:relative;display:inline-block;max-width:100%;border:1px solid var(--line);
  border-radius:8px;overflow:hidden;touch-action:none;background:#222}
.aerial-wrap img{display:block;max-width:100%;height:auto;user-select:none;-webkit-user-drag:none}
.map-view{width:100%}
.map-view img{width:100%}
.marker{position:absolute;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;
  background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.3);cursor:grab;z-index:5}
.marker:active{cursor:grabbing}
.cal-marker[data-key=a]{background:#e0732a}
.cal-marker[data-key=b]{background:#2a9d8f}

/* Map dots + tooltip */
.map-dot{position:absolute;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;
  background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.35);cursor:pointer;z-index:5}
.map-dot:hover{transform:scale(1.25)}
.map-tooltip{position:absolute;z-index:20;background:#fff;border:1px solid var(--line);
  border-radius:8px;box-shadow:0 4px 14px rgba(0,0,0,.18);padding:.6rem .7rem;font-size:.82rem;
  max-width:260px;pointer-events:none}
.map-tooltip h4{margin:.1em 0 .4em;font-size:.9rem}
.map-tooltip table{border-collapse:collapse;width:100%}
.map-tooltip td{padding:1px 4px;vertical-align:top}
.map-tooltip td:first-child{color:var(--muted);white-space:nowrap}
.map-tooltip img{width:100%;border-radius:6px;margin-top:.4rem}

/* Calibration */
.calib-points{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:.8rem}
.calib-point{border:1px solid var(--line);border-radius:8px;padding:.7rem}
.calib-point.active{border-color:var(--accent);box-shadow:0 0 0 2px #bcd1ff}
.calib-point .latlng{display:flex;gap:.5rem;margin:.5rem 0}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;vertical-align:middle}
.dot-a{background:#e0732a}.dot-b{background:#2a9d8f}
.px-info{display:block;font-size:.78rem;margin-top:.3rem}

/* Options */
.opt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.8rem}
.opt-card{border:1px solid var(--line);border-radius:8px;padding:.7rem}
.opt-list{list-style:none;margin:0 0 .5rem;padding:0;display:flex;flex-direction:column;gap:.3rem}
.opt-list li{display:flex;justify-content:space-between;align-items:center;background:#f7f9fb;
  border-radius:6px;padding:.25rem .5rem;font-size:.9rem}
.opt-list .x{background:transparent;border:none;color:var(--danger);font-size:1.1rem;cursor:pointer;line-height:1}
.opt-add{display:flex;gap:.4rem}
.opt-add input{flex:1}
.inline-form{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap}

/* Tables */
.table-wrap{overflow-x:auto}
.grid{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.grid th,.grid td{padding:.55rem .6rem;text-align:left;border-bottom:1px solid var(--line);font-size:.9rem}
.grid th{background:#eef1f4;color:#445;font-weight:600}
.thumb{width:44px;height:44px;object-fit:cover;border-radius:6px}
.row-actions{white-space:nowrap}

/* Backup */
.backup-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;align-items:start}
.backup-action{border-top:1px solid var(--line);padding-top:.8rem;margin-top:.8rem}
.backup-action:first-of-type{border-top:none;margin-top:0;padding-top:0}
.backup-action form{margin-top:.4rem}
.cron-row{margin-bottom:.9rem}
.cron-row label{font-size:.85rem;color:#445;margin-bottom:.3rem;display:block}
.copy-line{display:flex;gap:.4rem}
.copy-line input{font-size:.8rem;font-family:ui-monospace,Consolas,monospace;background:#f7f9fb;color:#445}
.retain-form{display:flex;gap:1rem;align-items:flex-end;flex-wrap:wrap}
.retain-form label{flex:1;min-width:150px}
.inline-num{display:flex;align-items:center;gap:.4rem}
.inline-num input{width:90px}
.filecell{font-family:ui-monospace,Consolas,monospace;font-size:.82rem}
.backup-table td,.backup-table th{white-space:nowrap}

@media(max-width:640px){
  .form-grid{grid-template-columns:1fr}
  .calib-points{grid-template-columns:1fr}
  .nav a{font-size:.85rem;padding:.3rem .45rem}
}
@media(max-width:900px){
  .backup-grid{grid-template-columns:1fr}
}