:root{
  --bg:#0b1220; --panel:#121b2d; --panel2:#18233a; --line:#24324d;
  --text:#e8eef9; --muted:#8a9bb8; --dim:#5d6d8a;
  --accent:#5eead4; --accent2:#38bdf8; --warn:#fbbf24; --miss:#f472b6;
  --mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
  --r:14px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}
body{padding-bottom:env(safe-area-inset-bottom)}
button,input,select{font:inherit;color:inherit}

.top{position:sticky;top:0;z-index:20;background:rgba(11,18,32,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:calc(env(safe-area-inset-top) + 10px) 16px 0}
.brand{display:flex;align-items:center;gap:12px;max-width:760px;margin:0 auto}
.logo{width:40px;height:40px;border-radius:10px}
h1{font-size:20px;font-weight:800;margin:0;letter-spacing:-.02em}
.cycle{font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:4px;max-width:760px;margin:10px auto 0}
.tab{flex:1;background:none;border:0;border-bottom:2px solid transparent;padding:10px 0 12px;color:var(--muted);font-weight:600;cursor:pointer}
.tab.active{color:var(--text);border-bottom-color:var(--accent)}

main{max-width:760px;margin:0 auto;padding:16px}
.panel{display:none}.panel.active{display:block}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:14px;margin-bottom:14px}

.form .field{margin-bottom:12px}
label{display:block;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.apt-input{width:100%;background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:var(--mono);font-size:20px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;outline:none}
.apt-input:focus{border-color:var(--accent2)}
.apt-input::placeholder{color:var(--dim);font-weight:500}
.app-select{width:100%;margin-top:8px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:15px;appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.actions{display:flex;gap:10px}
.btn{border:1px solid var(--line);background:var(--panel2);border-radius:10px;padding:12px 16px;font-weight:700;cursor:pointer}
.btn.primary{background:var(--accent);color:#06261f;border-color:var(--accent);flex:1}
.btn.ghost{background:transparent}
.btn.small{padding:7px 11px;font-size:13px;font-weight:600}
.btn:active{transform:scale(.98)}

/* route output */
.leg{margin-bottom:18px}
.leg-h{display:flex;align-items:baseline;gap:10px;margin:0 2px 8px}
.leg-tag{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--accent);text-transform:uppercase}
.leg-id{font-family:var(--mono);font-size:22px;font-weight:700}
.leg-name{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.facts{display:flex;flex-wrap:wrap;gap:6px;margin:0 2px 10px}
.chip{font-size:12px;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:4px 9px;color:var(--muted)}
.chip b{color:var(--text);font-weight:600}
.chip.rp{color:var(--warn);border-color:#4a3b14}

.rows{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.row{display:flex;align-items:center;gap:12px;padding:11px 14px;border-top:1px solid var(--line);cursor:pointer;-webkit-tap-highlight-color:transparent}
.row:first-child{border-top:0}
.row:active{background:var(--panel2)}
.row .k{width:92px;flex:none;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.row .v{flex:1;min-width:0}
.row .f{font-family:var(--mono);font-size:19px;font-weight:700;letter-spacing:.02em}
.row .n{font-size:12px;color:var(--muted);margin-top:2px}
.row .n:empty{display:none}
.row.sub .f{font-size:16px;color:#c6d3ea}
.row.nav .f{color:var(--accent2)}
.row.miss .k{color:var(--miss)}
.row.miss .f{color:var(--miss)}
.row.none{cursor:default}
.row.none .f{font-family:inherit;font-size:14px;color:var(--dim);font-weight:500}
.subhead{padding:8px 14px;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);background:var(--panel2);border-top:1px solid var(--line)}
.rows .subhead:first-child{border-top:0}
.app-card{padding:12px 14px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(56,189,248,.06),transparent)}
.app-card h3{margin:0 0 4px;font-size:15px}
.app-card .meta{font-size:12px;color:var(--muted)}
.route-tools{display:flex;gap:8px;margin:4px 0 16px;flex-wrap:wrap}

/* list */
.add{display:flex;gap:10px;padding:10px}
.add .apt-input{font-size:17px;padding:11px 12px}
.add .btn{flex:none}
.list-tools{display:flex;align-items:center;gap:8px;margin:0 2px 12px}
.hint{font-size:12px;color:var(--dim)}.spacer{flex:1}
.apt-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;overflow:hidden}
.apt-card.sortable-ghost{opacity:.35}
.apt-card.sortable-chosen{box-shadow:0 10px 30px rgba(0,0,0,.5);border-color:var(--accent2)}
.ac-h{display:flex;align-items:center;gap:10px;padding:12px 12px 10px 6px}
.handle{width:34px;height:34px;flex:none;display:grid;place-items:center;color:var(--dim);font-size:20px;cursor:grab;touch-action:none}
.ac-id{font-family:var(--mono);font-size:24px;font-weight:700}
.ac-name{font-size:12px;color:var(--muted);line-height:1.3}
.ac-h .grow{flex:1;min-width:0}
.ac-h .ac-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.x{background:none;border:0;color:var(--dim);font-size:22px;width:34px;height:34px;cursor:pointer;flex:none}
.ac-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}
.ac-grid .cell{padding:9px 12px;border-top:1px solid var(--line);cursor:pointer}
.ac-grid .cell:nth-child(-n+2){border-top:0}
.ac-grid .cell:nth-child(odd){border-right:1px solid var(--line)}
.ac-grid .cell:active{background:var(--panel2)}
.cell .k{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.cell .f{font-family:var(--mono);font-size:17px;font-weight:700;margin-top:1px}
.cell .n{font-size:11px;color:var(--dim);margin-top:1px}
.compact .ac-more,.compact .ac-info{display:none}
.ac-more .cell .k{color:var(--dim)}
.ac-info{border-top:1px solid var(--line);padding:8px 12px 10px;display:grid;gap:4px;background:var(--panel2)}
.ac-info div{display:flex;gap:10px;font-size:13px;line-height:1.35}
.ac-info span{width:86px;flex:none;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding-top:1px}
.ac-info b{font-weight:500;color:var(--text)}
.empty{color:var(--muted);text-align:center;padding:30px 10px;font-size:14px}
.loading{color:var(--muted);padding:20px 4px}
.err{color:#fca5a5;padding:10px 4px}

.suggest{position:absolute;z-index:50;background:var(--panel2);border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 40px rgba(0,0,0,.5);overflow:hidden;max-height:300px;overflow-y:auto}
.sg{padding:10px 12px;border-top:1px solid var(--line);cursor:pointer;display:flex;gap:10px;align-items:baseline}
.sg:first-child{border-top:0}
.sg.on,.sg:hover{background:#22304d}
.sg b{font-family:var(--mono);font-size:15px;min-width:52px}
.sg span{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,20px);background:var(--accent);color:#06261f;font-weight:700;padding:10px 16px;border-radius:999px;opacity:0;transition:.2s;pointer-events:none;z-index:60}
.toast.show{opacity:1;transform:translate(-50%,0)}
.disclaimer{font-size:11px;color:var(--dim);text-align:center;margin:24px 8px 8px;line-height:1.5}
@media (min-width:640px){.form{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.form .field{margin:0}.actions{grid-column:1/-1}}

/* Route results: two columns of frequency cells (subheads/approach span both) */
.rows{display:grid;grid-template-columns:1fr 1fr}
.rows .subhead,.rows .app-card{grid-column:1/-1}
.rows .row{flex-direction:column;align-items:flex-start;gap:1px;padding:10px 12px;margin-right:-1px;border-right:1px solid var(--line);min-width:0}
.rows .row:first-child{border-top:0}
.rows .row .k{width:auto;font-size:11px}
.rows .row .k:empty{display:none}
.rows .row .v{width:100%}
.rows .row .f{font-size:18px}
.rows .row.sub .f{font-size:16px}
.rows .row .n{line-height:1.3}

/* iOS 26 home-screen apps: WebKit blurs the status-bar edge unless it finds a full-width,
   >10px-tall fixed element at the very top with a solid background colour. This band is
   that element; background-clip:text means it paints nothing visible. */
.ios-band{display:none}
@media (display-mode: standalone){
  .ios-band{display:block;position:fixed;top:0;left:0;right:0;height:max(16px,env(safe-area-inset-top));z-index:2147483647;pointer-events:none;
    background-color:var(--bg);-webkit-background-clip:text;background-clip:text;color:transparent}
  body.drawing .ios-band{background-color:#161b26}
  html[data-theme="light"] body.drawing .ios-band{background-color:#e6eaf0}
  body:has(.ob) .ios-band{background-color:#081325}
}

/* My Airports: search + tools stay pinned under the header while the list scrolls */
.list-sticky{position:sticky;top:var(--hdr,0px);z-index:15;background:var(--bg);margin:-16px -16px 0;padding:16px 16px 2px;border-bottom:1px solid transparent;transition:border-color .2s}
.list-sticky .card{margin-bottom:10px}
.list-sticky .list-tools{margin-bottom:10px}

/* Route: form hides once results show; compact route bar with back + swap */
#tab-route.has-res #routeForm{display:none}
#routeForm .app-select{display:none}
.route-bar{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:8px;margin-bottom:10px}
.rb-back{display:flex;align-items:center;gap:2px;border:0;background:var(--panel2);color:var(--accent);font-weight:700;font-size:14px;padding:9px 12px 9px 6px;border-radius:10px;cursor:pointer;flex:none}
.rb-ids{flex:1;min-width:0;font:700 15px var(--mono);letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.rb-ids span{color:var(--dim);font-family:Inter,sans-serif;margin:0 3px;font-weight:500}
.rb-swap{width:40px;height:40px;flex:none;border:1px solid var(--line);background:var(--panel2);border-radius:10px;font-size:18px;font-weight:700;cursor:pointer;color:var(--text)}
.leg-app{width:100%;margin:0 0 10px;background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:11px 36px 11px 12px;font-size:15px;font-weight:600;appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;color:var(--text)}
.leg-app:focus{outline:none;border-color:var(--accent2)}

/* fixed frequency layout: an empty slot keeps its place so freqs never shift around */
.cell.cell-none{cursor:default}
.cell.cell-none .f{color:var(--dim);font-family:inherit;font-weight:500}
.cell.cell-none .n{color:var(--dim)}
.rows .row.slot-empty .f{font-family:inherit;font-size:18px;color:var(--dim);font-weight:500}
.rows .row.slot-empty .n{color:var(--dim)}