:root{
  --bg:#f4f6f8; --panel:#ffffff; --ink:#1f2733; --muted:#667085;
  --blue:#1f4e79; --blue2:#2e6da4; --line:#d9dee5; --accent:#c0392b;
  --sat:#1f4e79; --iso-t:#c9d4e0; --iso-w:#e2e8f0; --iso-ur:#7fa8d0;
  --iso-h:#e2b07a; --shadow:0 1px 3px rgba(20,30,50,.08),0 4px 16px rgba(20,30,50,.06);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:14px/1.45 "Segoe UI",Roboto,system-ui,Arial,sans-serif;color:var(--ink);
  background:var(--bg);display:flex;flex-direction:column}
header{background:var(--blue);color:#fff;padding:10px 16px;display:flex;align-items:center;
  gap:12px;box-shadow:var(--shadow);z-index:5}
header .logo{font-weight:700;font-size:18px;letter-spacing:.3px}
header .logo small{font-weight:400;opacity:.8;font-size:12px;margin-left:6px}
header .spacer{flex:1}
header select,header button{font:inherit}
.lang{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.35);
  border-radius:6px;padding:4px 8px}
.lang option{color:#000}

main{flex:1;display:flex;min-height:0}
.sidebar{width:340px;min-width:300px;background:var(--panel);border-right:1px solid var(--line);
  overflow:auto;padding:14px}
.chartwrap{flex:1;position:relative;min-width:0;display:flex;flex-direction:column}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;padding:8px 12px;background:var(--panel);
  border-bottom:1px solid var(--line)}
.chartarea{flex:1;position:relative;overflow:hidden;background:#fff}
#chart{width:100%;height:100%;display:block;touch-action:none;cursor:crosshair}

.card{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px;background:#fff}
.card h3{margin:0 0 10px;font-size:13px;text-transform:uppercase;letter-spacing:.4px;color:var(--blue)}
.row{display:flex;gap:8px;margin-bottom:8px;align-items:center}
.row label{flex:0 0 130px;color:var(--muted);font-size:13px}
.row input,.row select{flex:1;padding:6px 8px;border:1px solid var(--line);border-radius:6px;
  font:inherit;min-width:0}
.seg{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}
.seg button{flex:1;padding:6px 4px;border:1px solid var(--line);background:#fff;border-radius:6px;
  cursor:pointer;font-size:12px;color:var(--ink)}
.seg button.active{background:var(--blue);color:#fff;border-color:var(--blue)}

/* Nível 1: categoria Ponto de Estado x Processos */
.seg-cat{gap:6px;margin-bottom:10px}
.seg-cat button{padding:10px 6px;font-size:13px;font-weight:600}
.seg-cat button[data-cat="proc"].active{background:var(--accent);border-color:var(--accent)}
/* Nível 2: seletor do tipo de processo */
.procpick{margin-bottom:10px}
.procpick label{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
.procpick select{width:100%;padding:7px 8px;border:1px solid var(--accent);border-radius:6px;font:inherit;
  background:#fff;color:var(--accent);font-weight:600}
/* Cabeçalho contextual do modo ativo */
.modehead{border-radius:8px;padding:8px 10px;margin-bottom:10px;font-size:12px;line-height:1.35}
.modehead .tag{display:inline-block;font-weight:700;font-size:11px;letter-spacing:.3px;text-transform:uppercase;
  padding:2px 8px;border-radius:20px;color:#fff;margin-bottom:4px}
.modehead .desc{color:var(--muted);display:block}
/* Acentos por categoria no card de entrada */
#entryCard{border-left:4px solid var(--blue)}
#entryCard.mode-state{border-left-color:var(--blue)}
#entryCard.mode-state .modehead{background:#eef3f8}
#entryCard.mode-state .modehead .tag{background:var(--blue)}
#entryCard.mode-proc{border-left-color:var(--accent)}
#entryCard.mode-proc .modehead{background:#fbeeec}
#entryCard.mode-proc .modehead .tag{background:var(--accent)}
/* Altitude + Pressão atmosférica (lado a lado, acima da escolha de modo) */
.atm-row{display:flex;gap:10px;margin-bottom:12px}
.atm-field{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}
.atm-field label{color:var(--muted);font-size:12px}
.atm-field input{padding:6px 8px;border:1px solid var(--line);border-radius:6px;font:inherit;width:100%}
.atm-field input[readonly]{background:#eef3f8;color:var(--blue);font-weight:700;cursor:default}

button.btn{padding:7px 12px;border:1px solid var(--line);background:#fff;border-radius:7px;
  cursor:pointer;font-size:13px;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
button.btn:hover{border-color:var(--blue2);color:var(--blue)}
button.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
button.btn.primary:hover{background:#173e60;color:#fff}
button.btn.danger:hover{border-color:var(--accent);color:var(--accent)}

table.res{width:100%;border-collapse:collapse;font-size:12.5px;margin-top:4px}
table.res th,table.res td{border:1px solid var(--line);padding:4px 6px;text-align:right}
table.res th{background:#eef3f8;color:var(--blue);text-align:left;font-weight:600;white-space:nowrap}
table.res td:first-child{text-align:left;color:var(--muted)}

.points{font-size:12.5px}
.point-item{display:flex;align-items:center;gap:8px;padding:6px;border:1px solid var(--line);
  border-radius:7px;margin-bottom:6px}
.point-item .dot{width:12px;height:12px;border-radius:50%;flex:0 0 12px}
.point-item .txt{flex:1;line-height:1.25}
.point-item .txt b{color:var(--ink)}
.point-item .txt span{color:var(--muted)}
.point-item button{border:none;background:none;cursor:pointer;color:var(--muted);font-size:16px;padding:0 4px}
.point-item button:hover{color:var(--accent)}
.hint{color:var(--muted);font-size:12px;margin:2px 0 0}
.readout{position:absolute;bottom:8px;right:8px;background:rgba(31,78,121,.92);color:#fff;
  padding:5px 9px;border-radius:6px;font-size:12px;pointer-events:none;opacity:0;transition:opacity .1s}
.legend{position:absolute;top:8px;left:8px;background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:8px;padding:6px 9px;font-size:11px;color:var(--muted);line-height:1.6}
.legend i{display:inline-block;width:16px;height:0;border-top-width:2px;border-top-style:solid;
  vertical-align:middle;margin-right:5px}

.svg-point-label{font:11px "Segoe UI",Arial;fill:#1f2733}
.svg-axis-label{font:12px "Segoe UI",Arial;fill:#445}
.svg-iso-label{font:10px "Segoe UI",Arial}

@media (max-width:820px){
  main{flex-direction:column}
  .sidebar{width:auto;max-height:46vh;border-right:none;border-bottom:1px solid var(--line)}
  .row label{flex-basis:110px}
}

/* Botão Tutorial (ajuda) na barra */
.btn.btn-help{border-color:var(--blue);color:var(--blue);font-weight:600}
.btn.btn-help:hover{background:var(--blue);color:#fff}

/* Modal do Tutorial */
.modal-backdrop{position:fixed;inset:0;background:rgba(20,30,50,.5);display:flex;align-items:center;
  justify-content:center;z-index:60;padding:20px}
.modal-backdrop[hidden]{display:none}
.modal{background:#fff;border-radius:12px;max-width:760px;width:100%;max-height:88vh;overflow:auto;
  position:relative;box-shadow:0 10px 40px rgba(20,30,50,.35)}
.modal-close{position:absolute;top:10px;right:12px;border:none;background:none;font-size:20px;
  line-height:1;cursor:pointer;color:var(--muted)}
.modal-close:hover{color:var(--accent)}
.modal-body{padding:24px 28px}
.modal-body h2{margin:0 0 6px;color:var(--blue);font-size:22px}
.modal-body h3{margin:18px 0 6px;color:var(--blue2);font-size:15px}
.modal-body p{margin:6px 0;line-height:1.5}
.modal-body ul{margin:6px 0;padding-left:20px;line-height:1.5}
.modal-body li{margin:3px 0}
.modal-body code{background:#eef3f8;padding:1px 5px;border-radius:4px;font-size:12.5px}
.modal-foot{margin-top:20px;text-align:right}

/* Impressão: só o gráfico + resultados */
@media print{
  header,.toolbar,.sidebar .no-print,.legend,.readout,.modal-backdrop{display:none !important}
  body{background:#fff}
  main{display:block}
  .sidebar{width:auto;border:none;max-height:none;page-break-after:always}
  .chartarea{height:520px;border:1px solid #ccc}
  .print-only{display:block !important}
}
.print-only{display:none}