/* SE Thrust Calculator. Palette and chrome are kept in step with setools/farmcalc
   and setools/jumpcalc by convention, not by import — each tool stays standalone. */

:root {
  --bg: #070a0f;
  --bg-grad-top: #0d141d;
  --panel: #111821;
  --panel-elev: #16202c;
  --panel-input: #0a1018;

  --line: #1f3142;
  --line-bright: #2d4a66;

  --cyan: #5fb8e8;
  --cyan-bright: #8ed1f4;
  --cyan-dim: #2b6c95;
  --cyan-glow: rgba(95, 184, 232, 0.22);
  --cyan-glow-strong: rgba(95, 184, 232, 0.38);

  --amber: #ffa84a;
  --amber-dim: #b8742a;
  --amber-glow: rgba(255, 168, 74, 0.18);

  --green-pip: #57c785;
  --green-pip-dim: #2a6b46;
  --green-glow: rgba(87, 199, 133, 0.16);

  --text: #d8e3ec;
  --text-dim: #6c8398;
  --text-fade: #4d6478;

  --error: #ff5d5d;
  --error-glow: rgba(255, 93, 93, 0.18);

  /* thruster-type identity — reused by chart bands, legend and table accents */
  --t-atmospheric: #57c785;
  --t-ion: #5fb8e8;
  --t-hydrogen: #c58ee8;

  --font-chrome: "Roboto Condensed", "Arial Narrow", "Helvetica Neue Condensed",
                 "Liberation Sans Narrow", -apple-system, BlinkMacSystemFont,
                 "Segoe UI", sans-serif;
  --font-readout: "JetBrains Mono", "SF Mono", "Consolas",
                  "Liberation Mono", ui-monospace, monospace;

  --track: 0.14em;
  --track-tight: 0.06em;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-chrome);
  font-size: 14px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ---------- shell ---------- */

.terminal {
  position: relative;
  min-height: 100vh;
  padding: 1.25rem clamp(1rem, 3vw, 2rem) 2rem;
  background-image: radial-gradient(120% 80% at 50% -10%, var(--bg-grad-top), var(--bg) 60%);
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
}

.top-bar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
  margin-bottom: 1.5rem;
}

.top-bar h1 {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cyan-bright);
  text-shadow: 0 0 18px var(--cyan-glow);
}

.site-nav a {
  font-family: var(--font-readout);
  font-size: 0.74rem;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--text-fade);
  text-decoration: none;
}

.site-nav a:hover { color: var(--cyan); }

.panels {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

/* ---------- panels ---------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.2rem 1.25rem;
}

.panel h2 {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--cyan);
}

.panel h3 {
  margin: 1.4rem 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--cyan-dim);
}

.lead {
  margin: 0 0 0.9rem;
  max-width: 78ch;
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.55;
}

.lead strong { color: var(--text); font-weight: 600; }

.hint {
  margin: 0.5rem 0 0;
  max-width: 78ch;
  color: var(--text-fade);
  font-size: 0.82rem;
  line-height: 1.5;
}

.note {
  margin-top: 0.8rem;
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.55;
}

.err { color: var(--error); font-size: 0.84rem; }

/* ---------- controls ---------- */

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.85rem;
}

label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--text-dim);
}

input[type="number"], input[type="text"], input[type="search"], select {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.45rem 0.55rem;
  background: var(--panel-input);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-readout);
  font-size: 0.9rem;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 2px var(--cyan-glow);
}

.row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.7rem;
}

.row > span:first-child {
  min-width: 5rem;
  font-size: 0.78rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--text-dim);
}

.row select, .row input[type="text"] { flex: 1; min-width: 12rem; margin-top: 0; }

.row.check {
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.row.check input { width: auto; margin: 0 0.4rem 0 0; }

button {
  padding: 0.45rem 0.8rem;
  background: var(--panel-elev);
  border: 1px solid var(--line-bright);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-readout);
  font-size: 0.74rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 140ms ease, color 140ms ease;
}

button:hover:not(:disabled) { border-color: var(--cyan-dim); color: var(--cyan-bright); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- loadout ---------- */

.loadout {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 0.6rem;
}

.thruster-card {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.6rem 0.7rem;
  background: var(--panel-input);
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: 7px;
}

.thruster-card.is-active { border-color: var(--line-bright); }
.thruster-card[data-type="atmospheric"] { border-left-color: var(--t-atmospheric); }
.thruster-card[data-type="ion"] { border-left-color: var(--t-ion); }
.thruster-card[data-type="hydrogen"] { border-left-color: var(--t-hydrogen); }

.thruster-card .meta { flex: 1; min-width: 0; }

.thruster-card .tname {
  display: block;
  font-size: 0.86rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.thruster-card .tspec {
  display: block;
  font-family: var(--font-readout);
  font-size: 0.72rem;
  color: var(--text-fade);
}

.thruster-card input {
  width: 4.5rem;
  margin-top: 0;
  text-align: right;
}

/* ---------- verdict ---------- */

.panel-verdict { border-color: var(--line-bright); }

.headline {
  font-family: var(--font-readout);
  font-size: 1rem;
  line-height: 1.6;
  padding: 0.75rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-input);
}

.headline.ok {
  border-color: var(--green-pip-dim);
  box-shadow: inset 0 0 24px var(--green-glow);
  color: var(--green-pip);
}

.headline.bad {
  border-color: var(--error);
  box-shadow: inset 0 0 24px var(--error-glow);
  color: var(--error);
}

.headline.warn {
  border-color: var(--amber-dim);
  box-shadow: inset 0 0 24px var(--amber-glow);
  color: var(--amber);
}

.headline .sub {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-chrome);
  font-size: 0.9rem;
  color: var(--text-dim);
}

.stat-row {
  display: grid;
  /* Wide enough for a separated kilogram figure without wrapping mid-number. */
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
  gap: 0.6rem;
  margin-top: 0.85rem;
}

.stat {
  padding: 0.6rem 0.7rem;
  background: var(--panel-input);
  border: 1px solid var(--line);
  border-radius: 7px;
}

.stat .k {
  display: block;
  font-size: 0.68rem;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--text-fade);
}

.stat .v {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-readout);
  font-size: 0.95rem;
  color: var(--cyan-bright);
  overflow-wrap: anywhere;
}

.stat .v.is-bad { color: var(--error); }
.stat .v.is-ok { color: var(--green-pip); }

.fix-list { margin: 0.5rem 0 0; padding-left: 1.1rem; }
.fix-list li { margin-bottom: 0.25rem; }
.fix-list code {
  font-family: var(--font-readout);
  color: var(--amber);
}

/* ---------- charts ---------- */

.chart-wrap { margin-top: 0.4rem; }

.chart {
  width: 100%;
  overflow-x: auto;
}

.chart svg { display: block; width: 100%; height: auto; }

.chart-short svg { max-height: 190px; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 0.6rem;
  font-family: var(--font-readout);
  font-size: 0.74rem;
  color: var(--text-dim);
}

.legend .swatch {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 2px;
  margin-right: 0.35rem;
  vertical-align: -1px;
}

.legend .line-key {
  display: inline-block;
  width: 0.9rem;
  height: 0;
  border-top: 2px solid var(--amber);
  margin-right: 0.35rem;
  vertical-align: 4px;
}

.readout {
  margin-top: 0.7rem;
  font-family: var(--font-readout);
  font-size: 0.8rem;
  color: var(--text-dim);
  min-height: 1.3em;
}

.readout b { color: var(--cyan-bright); font-weight: 400; }

/* ---------- tables ---------- */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

th, td {
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  font-size: 0.68rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--text-fade);
  font-weight: 600;
  white-space: nowrap;
}

td { font-family: var(--font-readout); color: var(--text-dim); }
td.name { font-family: var(--font-chrome); color: var(--text); }
.num { text-align: right; }
tbody tr:hover td { background: rgba(95, 184, 232, 0.04); }

.table-scroll { overflow-x: auto; }

/* ---------- data editors ---------- */

.type-editor {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.7rem;
}

.type-card {
  padding: 0.75rem 0.85rem;
  background: var(--panel-input);
  border: 1px solid var(--line);
  border-top-width: 3px;
  border-radius: 7px;
}

.type-card[data-type="atmospheric"] { border-top-color: var(--t-atmospheric); }
.type-card[data-type="ion"] { border-top-color: var(--t-ion); }
.type-card[data-type="hydrogen"] { border-top-color: var(--t-hydrogen); }

.type-card h4 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--text);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.field-grid label { font-size: 0.7rem; }

.table-editor input {
  width: 100%;
  min-width: 5.5rem;
  margin-top: 0;
  padding: 0.28rem 0.4rem;
  font-size: 0.82rem;
}

.table-editor td { padding: 0.25rem 0.35rem; }

.card-head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

.name-input {
  margin-top: 0;
  padding: 0.28rem 0.4rem;
  font-family: var(--font-chrome);
  font-size: 0.86rem;
  min-width: 7rem;
}

.card-head .name-input { flex: 1; }

.btn-row-del {
  flex: none;
  padding: 0.1rem 0.45rem;
  font-size: 1rem;
  line-height: 1.2;
  color: var(--text-fade);
  border-color: var(--line);
  background: transparent;
}

.btn-row-del:hover:not(:disabled) {
  color: var(--error);
  border-color: var(--error);
}

.editor-tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.editor-tools .hint { margin: 0; color: var(--amber); }

tr.is-broken td { background: rgba(255, 93, 93, 0.07); }
tr.is-broken select { border-color: var(--error); }

.flag {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0 0.35rem;
  border: 1px solid var(--amber-dim);
  border-radius: 3px;
  font-family: var(--font-readout);
  font-size: 0.62rem;
  letter-spacing: var(--track-tight);
  text-transform: uppercase;
  color: var(--amber);
  cursor: help;
}

/* ---------- ref / footer ---------- */

.ref {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 1.2rem;
}

.ref summary {
  padding: 0.85rem 0;
  cursor: pointer;
  font-size: 0.78rem;
  letter-spacing: var(--track);
  text-transform: uppercase;
  color: var(--cyan-dim);
}

.ref summary:hover { color: var(--cyan); }
.ref[open] summary { border-bottom: 1px solid var(--line); }
.ref .body { padding: 1rem 0 1.3rem; }

footer {
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  color: var(--text-fade);
  font-size: 0.82rem;
  line-height: 1.6;
  max-width: 88ch;
}

footer code {
  font-family: var(--font-readout);
  color: var(--text-dim);
}

@media (max-width: 640px) {
  .field-grid { grid-template-columns: 1fr; }
  .top-bar h1 { font-size: 1.3rem; }
}