/* JetStudio — dark technical theme */
:root {
  --bg: #0b0f14;
  --bg2: #101722;
  --panel: #141c26;
  --panel2: #182230;
  --line: #24303f;
  --text: #dbe5f0;
  --muted: #8da2b8;
  --accent: #ff7a18;
  --accent2: #4aa3ff;
  --teal: #37d3c0;
  --ok: #3fbf6a;
  --warn: #e8b83b;
  --danger: #ef5350;
  --mono: "Cascadia Code", Consolas, "Roboto Mono", monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 500px at 70% -10%, #16202e 0%, var(--bg) 60%);
  color: var(--text);
  font: 14px/1.5 "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
}

/* ---------- header ---------- */
header {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  background: rgba(11, 15, 20, 0.85); position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(6px);
}
.logo { display: flex; align-items: baseline; gap: 8px; }
.logo b { font-size: 20px; letter-spacing: 1px; }
.logo b em { color: var(--accent); font-style: normal; }
.logo span { color: var(--muted); font-size: 12px; }
nav { display: flex; gap: 4px; margin-left: auto; }
nav button {
  background: none; border: 1px solid transparent; color: var(--muted);
  padding: 7px 14px; border-radius: 8px; cursor: pointer; font: inherit; font-size: 13.5px;
}
nav button:hover { color: var(--text); border-color: var(--line); }
nav button.active { color: var(--text); background: var(--panel2); border-color: var(--line); }

/* status pill */
#healthPill {
  font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line);
}
#healthPill.ok { color: var(--ok); border-color: rgba(63,191,106,.4); background: rgba(63,191,106,.08); }
#healthPill.warn { color: var(--warn); border-color: rgba(232,184,59,.4); background: rgba(232,184,59,.08); }
#healthPill.danger { color: var(--danger); border-color: rgba(239,83,80,.45); background: rgba(239,83,80,.1); }

/* ---------- layout ---------- */
main { display: grid; grid-template-columns: 330px 1fr; gap: 18px; padding: 18px 22px; max-width: 1500px; margin: 0 auto; }
main.nosidebar { grid-template-columns: 1fr; }
.tabpage { display: none; }
.tabpage.active { display: block; }

/* ---------- sidebar (inputs) ---------- */
aside { position: sticky; top: 72px; align-self: start; max-height: calc(100vh - 90px); overflow-y: auto; padding-right: 4px; }
aside::-webkit-scrollbar { width: 8px; }
aside::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 16px; margin-bottom: 14px;
}
.card h3 {
  margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--muted); display: flex; align-items: center; gap: 8px;
}
.card h3::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.presets { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.presets button {
  background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 7px 6px; cursor: pointer; font: inherit; font-size: 12.5px; text-align: center;
}
.presets button:hover { border-color: var(--accent2); }
.presets button.active { border-color: var(--accent); background: rgba(255,122,24,.1); }
#presetNote { font-size: 12px; color: var(--muted); margin-top: 9px; line-height: 1.45; }

.inp { margin-bottom: 11px; }
.inp .lr { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 3px; }
.inp label { font-size: 12.5px; color: var(--text); }
.inp label small { color: var(--muted); }
.inp .val {
  font-family: var(--mono); font-size: 12.5px; color: var(--accent2);
  background: var(--bg2); border: 1px solid var(--line); border-radius: 6px;
  width: 86px; text-align: right; padding: 2px 6px;
}
.inp .val:focus { outline: 1px solid var(--accent2); }
.inp input[type=range] { width: 100%; accent-color: var(--accent); height: 20px; margin: 0; }

details.adv { border-top: 1px dashed var(--line); padding-top: 8px; margin-top: 4px; }
details.adv summary { cursor: pointer; color: var(--muted); font-size: 12.5px; margin-bottom: 8px; user-select: none; }
details.adv summary:hover { color: var(--text); }

/* ---------- results ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(148px, 1fr)); gap: 10px; margin-bottom: 14px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; }
.kpi .k { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .8px; }
.kpi .v { font-family: var(--mono); font-size: 21px; margin-top: 2px; }
.kpi .v small { font-size: 12px; color: var(--muted); margin-left: 3px; }
.kpi.hot .v { color: var(--accent); }
.kpi.cool .v { color: var(--accent2); }
.kpi.teal .v { color: var(--teal); }

#schematic svg { width: 100%; height: auto; display: block; }
.sk-lbl { fill: #aebfd2; font: 12px "Segoe UI", sans-serif; }
.sk-dim { fill: #4aa3ff; font: 11px Consolas, monospace; }
.sk-station { fill: #dbe5f0; font: bold 11px Consolas, monospace; }
.sk-title { fill: #8da2b8; font: 13px Consolas, monospace; letter-spacing: .5px; }

.warnlist { display: flex; flex-direction: column; gap: 7px; }
.warnitem {
  display: flex; gap: 10px; align-items: baseline; font-size: 13px;
  padding: 8px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg2);
}
.warnitem .tag { font-size: 10.5px; font-weight: 700; letter-spacing: .8px; padding: 1px 8px; border-radius: 99px; white-space: nowrap; }
.warnitem.ok .tag { background: rgba(63,191,106,.14); color: var(--ok); }
.warnitem.warn .tag { background: rgba(232,184,59,.15); color: var(--warn); }
.warnitem.danger .tag { background: rgba(239,83,80,.16); color: var(--danger); }
.warnitem.warn { border-color: rgba(232,184,59,.35); }
.warnitem.danger { border-color: rgba(239,83,80,.4); }
.warnitem b { color: var(--muted); font-weight: 600; }

.err {
  background: rgba(239,83,80,.1); border: 1px solid rgba(239,83,80,.45);
  color: #ffb3b1; padding: 14px 16px; border-radius: 12px; margin-bottom: 14px; font-size: 14px;
}

/* tables */
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--line); }
table.data th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .6px; }
table.data td.num { font-family: var(--mono); color: var(--accent2); }
table.data tr:last-child td { border-bottom: none; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid2 > .card { margin-bottom: 0; }
@media (max-width: 1100px) { .grid2 { grid-template-columns: 1fr; } main { grid-template-columns: 280px 1fr; } }
@media (max-width: 820px) { main { grid-template-columns: 1fr; } aside { position: static; max-height: none; } }

canvas.chart { width: 100%; height: 260px; display: block; }

/* buttons */
.btnrow { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  background: var(--panel2); border: 1px solid var(--line); color: var(--text);
  padding: 9px 16px; border-radius: 9px; cursor: pointer; font: inherit; font-size: 13.5px;
}
.btn:hover { border-color: var(--accent2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #14100b; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.1); }

/* ---------- handbook ---------- */
.handbook { max-width: 900px; margin: 0 auto; }
.handbook h2 { color: var(--accent); font-size: 21px; margin: 30px 0 10px; }
.handbook h2:first-child { margin-top: 6px; }
.handbook h3 { color: var(--text); font-size: 16px; margin: 20px 0 6px; }
.handbook p, .handbook li { color: #c4d2e2; font-size: 14.5px; }
.handbook code { font-family: var(--mono); background: var(--bg2); padding: 1px 6px; border-radius: 5px; font-size: 13px; color: var(--teal); }
.handbook table.data { margin: 10px 0; }
.handbook table.data td { color: #c4d2e2; }
.handbook .safety {
  border: 1px solid rgba(239,83,80,.45); background: rgba(239,83,80,.07);
  border-radius: 12px; padding: 4px 18px 10px; margin: 14px 0;
}
.handbook .safety h3 { color: var(--danger); }
.handbook a { color: var(--accent2); }
.flowbox {
  font-family: var(--mono); font-size: 13px; color: var(--teal);
  background: var(--bg2); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 16px; overflow-x: auto; white-space: pre;
}

footer { text-align: center; color: var(--muted); font-size: 12px; padding: 14px 20px 26px; }
footer b { color: var(--warn); }

/* ---------- chart / card explanations ---------- */
.explain, .hint {
  color: var(--muted); font-size: 12.5px; line-height: 1.5; margin: -2px 0 10px;
}
.explain b { color: var(--text); font-weight: 600; }
.hint { margin: 10px 0 0; }

/* ---------- info tooltips ---------- */
.i-dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 13px; height: 13px; margin-left: 5px; border-radius: 50%;
  border: 1px solid var(--muted); color: var(--muted);
  font-size: 9px; font-style: italic; font-family: Georgia, serif;
  vertical-align: 1px; opacity: 0.65; cursor: help;
}
.inp:hover .i-dot, .kpi:hover .i-dot { opacity: 1; border-color: var(--accent2); color: var(--accent2); }
.kpi { position: relative; }
.kpi .i-dot { position: absolute; top: 9px; right: 10px; margin: 0; }
.kpi .k { padding-right: 16px; }
[data-info] { cursor: help; }
.inp[data-info] input { cursor: auto; }

#tooltip {
  position: fixed; z-index: 100; max-width: 360px; pointer-events: none;
  background: #1b2634; border: 1px solid #35465a; border-radius: 12px;
  padding: 12px 14px; font-size: 12.5px; line-height: 1.5; color: #c4d2e2;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.55);
  opacity: 0; transition: opacity 0.12s;
}
#tooltip.show { opacity: 1; }
#tooltip .tt-title { font-weight: 700; color: var(--text); margin-bottom: 4px; font-size: 13px; }
#tooltip .tt-typ { color: var(--teal); font-family: var(--mono); font-size: 11.5px; margin-top: 6px; }
#tooltip .tt-deps { margin-top: 8px; }
#tooltip .tt-deps .lbl { color: var(--muted); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.8px; margin-right: 4px; }
#tooltip .dep {
  display: inline-block; padding: 1px 8px; margin: 2px 2px 0 0; border-radius: 999px;
  font-size: 11px; background: rgba(74, 163, 255, 0.12); color: #8fc3ff;
}
#tooltip .dep.out { background: rgba(255, 122, 24, 0.13); color: #ffb27a; }

/* ---------- 3D viewer ---------- */
#viewer3d {
  width: 100%; height: 430px; display: block; border-radius: 10px;
  background: radial-gradient(800px 380px at 50% 42%, #17222f 0%, #0b1016 78%);
  cursor: grab; touch-action: none;
}
#viewer3d:active { cursor: grabbing; }

/* ---------- wizard ---------- */
.wizard { max-width: 1180px; margin: 0 auto; }
.wiz-progress { display: flex; gap: 6px; margin-bottom: 16px; justify-content: center; flex-wrap: wrap; }
.wiz-step {
  padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel);
  color: var(--muted); font-size: 12.5px; cursor: default; user-select: none;
}
.wiz-step.done { color: var(--teal); border-color: rgba(55, 211, 192, 0.4); cursor: pointer; }
.wiz-step.active { color: var(--text); border-color: var(--accent); background: rgba(255, 122, 24, 0.08); }
.wiz-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 14px; align-items: start; }
@media (max-width: 900px) { .wiz-grid { grid-template-columns: 1fr; } }
.wiz-right .card { margin-bottom: 14px; }
.wiz-story h2 { color: var(--accent); font-size: 19px; margin: 2px 0 10px; }
.wiz-story p, .wiz-story li { color: #c4d2e2; font-size: 14px; line-height: 1.55; }
.wiz-story code { font-family: var(--mono); background: var(--bg2); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; color: var(--teal); }
.wiz-safety {
  border: 1px solid rgba(239, 83, 80, 0.45); background: rgba(239, 83, 80, 0.07);
  border-radius: 10px; padding: 10px 14px; margin-top: 12px; font-size: 13px; color: #e8c4c3;
}
.choice-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.choice { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; cursor: pointer; }
.choice:hover { border-color: var(--accent2); }
.choice.active { border-color: var(--accent); background: rgba(255, 122, 24, 0.1); }
.choice b { display: block; font-size: 13.5px; margin-bottom: 2px; }
.choice span { font-size: 12px; color: var(--muted); line-height: 1.35; display: block; }
.frow { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; border-bottom: 1px solid var(--line); padding: 6px 2px; font-size: 13px; }
.frow:last-child { border-bottom: none; }
.frow .fv { font-family: var(--mono); color: var(--accent2); text-align: right; }
.frow .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 7px; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.danger { background: var(--danger); }
.wiz-nav { display: flex; justify-content: space-between; margin-top: 16px; }
#wizMini svg { width: 100%; height: auto; display: block; }

/* schematic animation: moving flow dashes + breathing plume */
#schematic .flow, #wizMini .flow {
  stroke-dasharray: 5 7;
  animation: flowdash 0.8s linear infinite;
}
@keyframes flowdash { to { stroke-dashoffset: -12; } }
#schematic .plume-core, #wizMini .plume-core { animation: plumepulse 1.4s ease-in-out infinite alternate; }
@keyframes plumepulse { from { opacity: 0.75; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  #schematic .flow, #wizMini .flow, #schematic .plume-core, #wizMini .plume-core { animation: none; }
}

/* blueprint grid behind the 2D schematic */
#schematic {
  border-radius: 10px;
  background-color: rgba(13, 19, 27, 0.6);
  background-image:
    linear-gradient(rgba(74, 163, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 163, 255, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
}