/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg0:      #050810;
  --bg1:      #080d18;
  --bg2:      #0b1220;
  --bg3:      #111c2e;
  --bg4:      #172338;

  --teal0:    #00ffc8;
  --teal1:    #00d4a8;
  --teal2:    #00a882;
  --teal3:    #006b52;
  --teal4:    #003d30;

  --cyan:     #00e5ff;
  --cyan-dim: #00b8cc;

  --green:    #39ff9a;
  --green-dim:#1a9955;

  --text0:    #e8f4f0;
  --text1:    #9ec8bc;
  --text2:    #5a8a7a;
  --text3:    #2d5045;

  --warn:     #ffb830;
  --err:      #ff4f6a;
  --ok:       #39ff9a;

  --border:   rgba(0,255,200,0.12);
  --border2:  rgba(0,255,200,0.25);
  --border3:  rgba(0,255,200,0.45);

  --glow:     0 0 12px rgba(0,255,200,0.15);
  --glow2:    0 0 20px rgba(0,255,200,0.25);
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Exo 2', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg0);
  color: var(--text0);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ── STARFIELD ── */
#star-canvas {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  width: 100%; height: 100%;
}
/* CSS twinkle stars — capa adicional encima del canvas */
.stars-css {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    /* brillantes */
    radial-gradient(2px 2px at 12% 18%, rgba(255,255,255,0.95) 0%, transparent 100%),
    radial-gradient(2px 2px at 87% 7%,  rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2px 2px at 44% 93%, rgba(255,255,255,0.85) 0%, transparent 100%),
    radial-gradient(2px 2px at 68% 54%, rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2px 2px at 29% 47%, rgba(255,255,255,0.8)  0%, transparent 100%),
    radial-gradient(2.5px 2.5px at 5% 82%, rgba(255,255,255,0.85) 0%, transparent 100%),
    radial-gradient(2px 2px at 93% 61%, rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2.5px 2.5px at 56% 31%, rgba(255,255,255,0.95) 0%, transparent 100%),
    /* teal */
    radial-gradient(2px 2px at 77% 22%, rgba(0,255,200,0.8)  0%, transparent 100%),
    radial-gradient(2px 2px at 19% 69%, rgba(0,255,200,0.7)  0%, transparent 100%),
    radial-gradient(2px 2px at 62% 78%, rgba(0,229,255,0.75) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 38% 12%, rgba(0,229,255,0.6) 0%, transparent 100%),
    /* medianas */
    radial-gradient(1.5px 1.5px at 3%  35%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 5%,  rgba(255,255,255,0.55) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 81% 88%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 23% 95%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 97% 42%, rgba(255,255,255,0.55) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 35% 73%, rgba(255,255,255,0.45) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 71% 14%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 48% 62%, rgba(255,255,255,0.4) 0%, transparent 100%);
}
.stars-twinkle {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(1.5px 1.5px at 8%  28%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 72% 91%, rgba(255,255,255,0.65) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 41% 44%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 91% 33%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 16% 57%, rgba(0,255,200,0.6)  0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 55% 18%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 84% 72%, rgba(0,229,255,0.55) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 27% 83%, rgba(255,255,255,0.45) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 63% 50%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 2%  10%, rgba(255,255,255,0.6) 0%, transparent 100%);
  animation: twinkle1 4s ease-in-out infinite alternate;
}
.stars-twinkle2 {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(1px 1px at 33% 15%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 78% 48%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 11% 76%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 59% 87%, rgba(0,255,200,0.5)  0%, transparent 100%),
    radial-gradient(1px 1px at 45% 29%, rgba(255,255,255,0.55) 0%, transparent 100%),
    radial-gradient(1px 1px at 96% 55%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 22% 38%, rgba(0,229,255,0.45) 0%, transparent 100%),
    radial-gradient(1px 1px at 67% 66%, rgba(255,255,255,0.35) 0%, transparent 100%),
    radial-gradient(1px 1px at 89% 19%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 4%  92%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 52% 74%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 37% 58%, rgba(0,255,200,0.3)  0%, transparent 100%);
  animation: twinkle2 6s ease-in-out infinite alternate;
}
.stars-drift {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(1px 1px at 6%  44%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 17% 31%, rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 31% 88%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 46% 17%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 53% 52%, rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 64% 36%, rgba(0,255,200,0.2)  0%, transparent 100%),
    radial-gradient(1px 1px at 74% 79%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 83% 24%, rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 94% 67%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 39% 96%, rgba(0,229,255,0.2)  0%, transparent 100%),
    radial-gradient(1px 1px at 58% 8%,  rgba(255,255,255,0.25) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 63%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 87% 85%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 13% 5%,  rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 41%, rgba(255,255,255,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 47% 71%, rgba(0,255,200,0.15) 0%, transparent 100%),
    radial-gradient(1px 1px at 9%  59%, rgba(255,255,255,0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 99% 13%, rgba(255,255,255,0.2) 0%, transparent 100%);
  animation: drift 90s linear infinite;
}
@keyframes drift    { to { transform: translate(-25px, -35px); } }
@keyframes twinkle1 { 0%{opacity:1} 50%{opacity:0.35} 100%{opacity:0.8} }
@keyframes twinkle2 { 0%{opacity:0.6} 40%{opacity:1} 100%{opacity:0.4} }

/* Subtle nebula glow */
.nebula {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 70% 45% at 15% 85%, rgba(0,100,70,0.10) 0%, transparent 55%),
    radial-gradient(ellipse 55% 55% at 85% 15%, rgba(0,70,110,0.10) 0%, transparent 55%),
    radial-gradient(ellipse 40% 60% at 60% 40%, rgba(0,60,50,0.07)  0%, transparent 60%),
    radial-gradient(ellipse 80% 30% at 50% 100%,rgba(0,80,60,0.06) 0%, transparent 50%);
}

/* ── LAYOUT ── */
.container {
  position: relative; z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

/* ── HEADER ── */
header {
  position: relative;
  padding: 36px 0 28px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}
.logo-mark {
  width: 42px; height: 42px;
  border: 1.5px solid var(--teal1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal0);
  box-shadow: var(--glow2), inset 0 0 12px rgba(0,255,200,0.1);
  animation: pulse-ring 3s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse-ring {
  0%,100% { box-shadow: var(--glow), inset 0 0 8px rgba(0,255,200,0.08); }
  50%      { box-shadow: var(--glow2), inset 0 0 16px rgba(0,255,200,0.18); }
}
.header-text h1 {
  font-family: var(--font-mono);
  font-size: clamp(18px, 3vw, 26px);
  color: var(--teal0);
  letter-spacing: 0.12em;
  text-shadow: 0 0 20px rgba(0,255,200,0.4);
  line-height: 1;
}
.header-text p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text2);
  letter-spacing: 0.2em;
  margin-top: 5px;
  text-transform: uppercase;
}
.status-bar {
  margin-left: auto;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.status-item {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 5px;
  letter-spacing: 0.1em;
}
.status-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  animation: blink 2.5s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

/* ── GRID ── */
.app {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
@media(max-width:700px) { .app { grid-template-columns: 1fr; } }

/* ── PANEL ── */
.panel {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px;
  position: relative;
  overflow: hidden;
}
.panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,255,200,0.03) 0%, transparent 50%);
  pointer-events: none;
}
/* corner accents */
.panel::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 20px; height: 20px;
  border-top: 1.5px solid var(--teal2);
  border-left: 1.5px solid var(--teal2);
  border-radius: 2px 0 0 0;
  pointer-events: none;
}
.corner-br {
  position: absolute;
  bottom: 0; right: 0;
  width: 20px; height: 20px;
  border-bottom: 1.5px solid var(--teal2);
  border-right: 1.5px solid var(--teal2);
  border-radius: 0 0 2px 0;
  pointer-events: none;
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-title::before {
  content: '';
  width: 3px; height: 14px;
  background: var(--teal0);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--teal0);
  flex-shrink: 0;
}

/* ── FORM ELEMENTS ── */
label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

select, input[type=number] {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text0);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 0 10px;
  height: 34px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  -webkit-appearance: none;
}
.header2-text h1 {
  font-family: var(--font-mono);
  font-size: clamp(18px, 3vw, 26px);
  text-align: center;
  color: var(--teal0);
  letter-spacing: 0.12em;
  text-shadow: 0 0 20px rgba(0,255,200,0.4);
  line-height: 1;
}
.header2-text p {
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  color: var(--text2);
  letter-spacing: 0.2em;
  margin-top: 5px;
  text-transform: uppercase;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2300a882'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  cursor: pointer;
}
select:focus, input[type=number]:focus {
  border-color: var(--teal2);
  box-shadow: 0 0 0 2px rgba(0,255,200,0.1), var(--glow);
}
select option { background: var(--bg2); color: var(--text0); }

input[type=number] { height: 30px; }
input[type=number]::-webkit-inner-spin-button { opacity: 0.3; filter: invert(1); }

.row { display: grid; gap: 8px; margin-bottom: 8px; }
.col2 { grid-template-columns: 1fr 1fr; }
.col3 { grid-template-columns: 1fr 1fr 1fr; }
@media(max-width:360px) { .col2, .col3 { grid-template-columns: 1fr; } }

/* ── BUTTONS ── */
.btn {
  width: 100%; height: 34px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
}
.btn:hover {
  background: rgba(0,255,200,0.06);
  border-color: var(--teal2);
  color: var(--teal0);
}
.btn-primary {
  background: rgba(0,168,130,0.15);
  border-color: var(--teal2);
  color: var(--teal0);
  box-shadow: 0 0 10px rgba(0,255,200,0.08);
}
.btn-primary:hover {
  background: rgba(0,168,130,0.28);
  border-color: var(--teal0);
  box-shadow: var(--glow2);
  color: #fff;
}
.btn-sm {
  height: 26px; width: auto;
  padding: 0 10px;
  font-size: 11px;
}

/* ── TAB BAR ── */
.tab-bar {
  display: flex; gap: 2px;
  margin-bottom: 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px;
}
.tab {
  flex: 1; height: 26px;
  background: none; border: none;
  border-radius: 2px;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.2s;
}
.tab:hover { color: var(--teal1); }
.tab.active {
  background: rgba(0,168,130,0.2);
  color: var(--teal0);
  border: 1px solid var(--border2);
  box-shadow: 0 0 8px rgba(0,255,200,0.1);
}

/* ── TOGGLE ── */
.tog-group { display: flex; gap: 3px; }
.tog {
  flex: 1; height: 30px;
  border: 1px solid var(--border2);
  border-radius: 3px;
  background: none;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.2s;
}
.tog:hover { color: var(--teal1); border-color: var(--teal3); }
.tog.on {
  background: rgba(0,168,130,0.18);
  border-color: var(--teal2);
  color: var(--teal0);
  box-shadow: 0 0 8px rgba(0,255,200,0.1);
}

/* ── RESULTS ── */
.result {
  margin-top: 10px;
  padding: 12px;
  border-radius: 3px;
  font-size: 13px;
  line-height: 1.6;
  font-family: var(--font-mono);
}
.result.ok {
  background: rgba(57,255,154,0.07);
  border: 1px solid rgba(57,255,154,0.25);
  color: var(--ok);
}
.result.warn {
  background: rgba(255,184,48,0.07);
  border: 1px solid rgba(255,184,48,0.25);
  color: var(--warn);
}
.result.err {
  background: rgba(255,79,106,0.07);
  border: 1px solid rgba(255,79,106,0.25);
  color: var(--err);
}
.result.info {
  background: rgba(0,168,130,0.07);
  border: 1px solid var(--border2);
  color: var(--text1);
}
.big-num {
  font-size: 22px;
  font-weight: 400;
  display: block;
  margin: 2px 0 6px;
  letter-spacing: 0.05em;
  text-shadow: 0 0 20px currentColor;
}

/* ── STAGE CARDS ── */
.stage-wrap { margin-bottom: 8px; }
.stage-header {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px 3px 0 0;
  border-bottom: none;
  padding: 8px 10px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s, border-color 0.15s;
}
.stage-header:hover { background: var(--bg4); border-color: var(--border2); }
.stage-header.collapsed { border-radius: 3px; border-bottom: 1px solid var(--border); }
.stage-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--teal0);
  background: rgba(0,255,200,0.1);
  border: 1px solid var(--border2);
  border-radius: 2px;
  padding: 1px 6px;
  letter-spacing: 0.1em;
}
.stage-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text1);
  letter-spacing: 0.06em;
  flex: 1;
}
.stage-dv-preview {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal2);
}
.stage-body {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 3px 3px;
  padding: 12px;
}
.chevron {
  font-size: 9px;
  color: var(--teal3);
  transition: transform 0.15s;
  display: inline-block;
}
.chevron.open { transform: rotate(90deg); color: var(--teal1); }

/* ── ENGINE ROW ── */
.engine-row {
  display: grid;
  grid-template-columns: 1fr 60px auto auto;
  gap: 6px;
  align-items: end;
  margin-bottom: 6px;
}
@media(max-width:420px) { .engine-row { grid-template-columns: 1fr 60px auto; } }

.isp-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal1);
  display: flex;
  align-items: center;
  height: 30px;
  white-space: nowrap;
  padding-left: 2px;
}

/* ── ADD BUTTON ── */
.add-btn {
  width: 100%;
  background: none;
  border: 1px dashed var(--border2);
  border-radius: 3px;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px;
  cursor: pointer;
  margin-bottom: 8px;
  transition: all 0.2s;
}
.add-btn:hover {
  background: rgba(0,255,200,0.04);
  border-color: var(--teal3);
  color: var(--teal1);
}

/* ── TIP BOX ── */
.tip-box {
  background: rgba(0,60,48,0.3);
  border-left: 2px solid var(--teal3);
  border-radius: 0 3px 3px 0;
  padding: 8px 10px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text2);
  line-height: 1.6;
  letter-spacing: 0.04em;
}
.tip-box strong { color: var(--teal1); font-weight: 400; }

/* ── STRUCT ── */
.struct-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 6px;
  margin: 8px 0;
}
.struct-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 6px 8px;
}
.struct-item label { font-size: 9px; margin-bottom: 3px; }
.struct-item input { height: 26px; font-size: 11px; padding: 0 6px; }

/* ── MASS PILLS ── */
.mass-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 6px;
}
.mass-pill {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 0.06em;
}

/* ── DEST ITEMS ── */
.dest-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s;
  border: 1px solid transparent;
}
.dest-item:hover {
  background: rgba(0,255,200,0.05);
  border-color: var(--border);
}
.dest-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.margin-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: auto;
  white-space: nowrap;
  letter-spacing: 0.06em;
}

/* ── ROUTE STEPS ── */
.route-step { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-family: var(--font-mono); }

/* ── DIVIDER ── */
hr { border: none; border-top: 1px solid var(--border); margin: 8px 0; }

/* ── WARN INLINE ── */
.same-warn {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--err);
  margin-bottom: 6px;
  letter-spacing: 0.08em;
  padding-left: 2px;
}

/* ── PAYLOAD HINT ── */
.payload-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text3);
  margin-top: 4px;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

/* ── REENTRY GUIDE ── */
.reentry-panel {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px;
  position: relative;
  overflow: hidden;
  margin-bottom: 12px;
}
.reentry-panel::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,79,106,0.03) 0%, transparent 50%);
  pointer-events: none;
}
.reentry-panel::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 20px; height: 20px;
  border-top: 1.5px solid #ff4f6a;
  border-left: 1.5px solid #ff4f6a;
  border-radius: 2px 0 0 0;
  pointer-events: none;
}
.reentry-corner-br {
  position: absolute; bottom: 0; right: 0;
  width: 20px; height: 20px;
  border-bottom: 1.5px solid #ff4f6a;
  border-right: 1.5px solid #ff4f6a;
  border-radius: 0 0 2px 0;
  pointer-events: none;
}
.reentry-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #ff4f6a;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.reentry-title::before {
  content: '';
  width: 3px; height: 14px;
  background: #ff4f6a;
  border-radius: 2px;
  box-shadow: 0 0 8px #ff4f6a;
  flex-shrink: 0;
}
.reentry-tabs {
  display: flex; gap: 3px;
  margin-bottom: 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px;
}
.reentry-tab {
  flex: 1; height: 26px;
  background: none; border: none;
  border-radius: 2px;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.2s;
}
.reentry-tab:hover { color: var(--err); }
.reentry-tab.active {
  background: rgba(255,79,106,0.12);
  color: #ff4f6a;
  border: 1px solid rgba(255,79,106,0.3);
}
.reentry-case { display: none; }
.reentry-case.active { display: block; }
.peri-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 11px;
  margin-bottom: 10px;
}
.peri-table th {
  text-align: left;
  padding: 5px 8px;
  background: var(--bg3);
  color: var(--text2);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  font-weight: 400;
}
.peri-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text1);
  vertical-align: top;
}
.peri-table tr:last-child td { border-bottom: none; }
.peri-table td:first-child { color: var(--teal1); white-space: nowrap; }
.peri-ok   { color: #39ff9a !important; }
.peri-warn { color: var(--warn) !important; }
.peri-bad  { color: var(--err) !important; }
.reentry-explain {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text1);
  line-height: 1.7;
  margin-bottom: 10px;
}
.reentry-explain strong { color: var(--teal0); font-weight: 400; }
.reentry-explain .hi { color: var(--warn); }
.reentry-explain .bad { color: var(--err); }
/* ── PERIAPSIS CALCULATOR ── */
.peri-calc {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 14px;
  margin-bottom: 12px;
}
.peri-calc-title {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--teal2);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.peri-calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}
@media(max-width:420px){ .peri-calc-grid{ grid-template-columns: 1fr; } }
.peri-calc-result {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border-radius: 3px;
  font-family: var(--font-mono);
  flex-wrap: wrap;
}
.peri-calc-result.ok   { background:rgba(57,255,154,0.07);  border:1px solid rgba(57,255,154,0.25); color:var(--ok); }
.peri-calc-result.warn { background:rgba(255,184,48,0.07);  border:1px solid rgba(255,184,48,0.25); color:var(--warn); }
.peri-calc-result.bad  { background:rgba(255,79,106,0.07);  border:1px solid rgba(255,79,106,0.25); color:var(--err); }
.peri-calc-result.idle { background:var(--bg3); border:1px solid var(--border); color:var(--text2); }
.peri-num  { font-size:28px; letter-spacing:0.04em; text-shadow:0 0 16px currentColor; white-space:nowrap; }
.peri-meta { font-size:11px; line-height:1.6; }
.peri-strategy {
  font-size: 11px;
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: 3px;
  font-family: var(--font-mono);
  line-height: 1.6;
  border-left: 2px solid var(--teal3);
  background: rgba(0,168,130,0.06);
  color: var(--text1);
}
.peri-strategy strong { color: var(--teal0); font-weight: 400; }

/* ── AEROBRAKING LINK ── */
.aero-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color 0.15s;
}
.aero-link:hover { color: var(--teal0); }

/* ── AEROBRAKING MODAL ── */
.aero-modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(2,5,14,0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.aero-modal-overlay.open { display: flex; }
.aero-modal {
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: 6px;
  width: 100%; max-width: 440px;
  position: relative; overflow: hidden;
  box-shadow: 0 0 40px rgba(0,255,200,0.08), 0 20px 60px rgba(0,0,0,0.7);
}
.aero-modal::before {
  content:''; position:absolute; top:0; left:0; width:22px; height:22px;
  border-top:1.5px solid var(--teal2); border-left:1.5px solid var(--teal2);
  border-radius:4px 0 0 0; pointer-events:none;
}
.aero-modal::after {
  content:''; position:absolute; bottom:0; right:0; width:22px; height:22px;
  border-bottom:1.5px solid var(--teal2); border-right:1.5px solid var(--teal2);
  border-radius:0 0 4px 0; pointer-events:none;
}
.aero-modal-inner { padding: 22px 22px 20px; }
.aero-modal-title {
  font-family: var(--font-mono); font-size: 11px; color: var(--teal1);
  letter-spacing: 0.2em; text-transform: uppercase;
  margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.aero-modal-title::before {
  content:''; width:3px; height:14px; background:var(--teal0);
  border-radius:2px; box-shadow:0 0 8px var(--teal0); flex-shrink:0;
}
.aero-modal-body {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--text1); line-height: 1.75; margin-bottom: 16px;
}
.aero-modal-body strong { color: var(--teal0); font-weight: 400; }
.aero-modal-body .dim { color: var(--text2); font-size: 11px; }
.aero-btn-row { display: flex; gap: 8px; }
.aero-btn-open {
  flex: 1; height: 38px;
  background: rgba(0,168,130,0.15); border: 1px solid var(--teal2);
  border-radius: 3px; color: var(--teal0);
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.1em; cursor: pointer; text-transform: uppercase;
  transition: all 0.2s;
}
.aero-btn-open:hover { background: rgba(0,168,130,0.3); box-shadow: var(--glow2); }
.aero-btn-close {
  height: 38px; width: 38px; background: none;
  border: 1px solid var(--border2); border-radius: 3px;
  color: var(--text2); font-family: var(--font-mono);
  cursor: pointer; transition: all 0.15s; flex-shrink: 0;
}
.aero-btn-close:hover { border-color: var(--err); color: var(--err); }

.scanline {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.04) 3px,
    rgba(0,0,0,0.04) 4px
  );
}

/* ── DESCENT GUIDE ── */
.descent-section {
  margin-top: 16px;
  position: relative; z-index: 1;
}
.descent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.descent-card {
  background: var(--bg1);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.descent-card:hover { border-color: var(--border2); }
.descent-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.descent-card-header:hover { background: var(--bg3); }
.body-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 6px currentColor;
}
.body-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal0);
  letter-spacing: 0.1em;
  flex: 1;
}
.atm-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  padding: 1px 5px;
  border-radius: 2px;
}
.atm-badge.yes { background: rgba(0,229,255,0.12); color: var(--cyan); border: 1px solid rgba(0,229,255,0.3); }
.atm-badge.no  { background: rgba(255,184,48,0.1);  color: var(--warn); border: 1px solid rgba(255,184,48,0.3); }
.descent-body { display: none; } /* ya no se usa inline */

/* ── DESCENT MODAL ── */
.descent-modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(2, 5, 14, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.descent-modal-overlay.open { display: flex; }

.descent-modal {
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: 6px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 0 40px rgba(0,255,200,0.08), 0 20px 60px rgba(0,0,0,0.6);
  scrollbar-width: thin;
  scrollbar-color: var(--teal3) transparent;
}
.descent-modal::-webkit-scrollbar { width: 4px; }
.descent-modal::-webkit-scrollbar-thumb { background: var(--teal3); border-radius: 2px; }

/* corner accents on modal */
.descent-modal::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 22px; height: 22px;
  border-top: 1.5px solid var(--teal2);
  border-left: 1.5px solid var(--teal2);
  border-radius: 4px 0 0 0;
  pointer-events: none;
}
.descent-modal::after {
  content: '';
  position: absolute; bottom: 0; right: 0;
  width: 22px; height: 22px;
  border-bottom: 1.5px solid var(--teal2);
  border-right: 1.5px solid var(--teal2);
  border-radius: 0 0 4px 0;
  pointer-events: none;
}

.descent-modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg1);
  z-index: 1;
}
.modal-body-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}
.modal-body-name {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--teal0);
  letter-spacing: 0.14em;
  flex: 1;
  text-shadow: 0 0 12px rgba(0,255,200,0.3);
}
.modal-close {
  background: none;
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 14px;
  width: 28px; height: 28px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}
.modal-close:hover { border-color: var(--err); color: var(--err); background: rgba(255,79,106,0.08); }

.descent-modal-body { padding: 14px 16px 18px; }
.dstat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}
.dstat-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 6px 8px;
}
.dstat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.dstat-val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal1);
}
.dstat-val.warn { color: var(--warn); }
.dstat-val.danger { color: var(--err); }
.descent-steps { list-style: none; }
.descent-steps li {
  display: flex;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text1);
  line-height: 1.55;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}
.descent-steps li:last-child { border-bottom: none; }
.step-num {
  color: var(--teal2);
  flex-shrink: 0;
  width: 16px;
  text-align: right;
}
.descent-warn {
  margin-top: 8px;
  padding: 7px 9px;
  background: rgba(255,79,106,0.07);
  border: 1px solid rgba(255,79,106,0.25);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--err);
  line-height: 1.5;
}
.descent-tip {
  margin-top: 8px;
  padding: 7px 9px;
  background: rgba(0,168,130,0.07);
  border-left: 2px solid var(--teal3);
  border-radius: 0 3px 3px 0;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  line-height: 1.6;
}
.descent-tip strong { color: var(--teal1); font-weight: 400; }

/* ── INDEX PAGE ── */
body.index-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  overflow: hidden;
}

/* Extra star layers for index — denser than main pages */
body.index-page .stars-css {
  background:
    radial-gradient(2px 2px at 8%  15%, rgba(255,255,255,0.95) 0%, transparent 100%),
    radial-gradient(2px 2px at 88% 8%,  rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2px 2px at 44% 92%, rgba(255,255,255,0.85) 0%, transparent 100%),
    radial-gradient(2px 2px at 67% 53%, rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2px 2px at 28% 46%, rgba(255,255,255,0.8)  0%, transparent 100%),
    radial-gradient(2.5px 2.5px at 4% 81%, rgba(255,255,255,0.85) 0%, transparent 100%),
    radial-gradient(2px 2px at 94% 62%, rgba(255,255,255,0.9)  0%, transparent 100%),
    radial-gradient(2.5px 2.5px at 55% 30%, rgba(255,255,255,0.95) 0%, transparent 100%),
    radial-gradient(2px 2px at 76% 21%, rgba(0,255,200,0.85)  0%, transparent 100%),
    radial-gradient(2px 2px at 18% 68%, rgba(0,255,200,0.75)  0%, transparent 100%),
    radial-gradient(2px 2px at 61% 77%, rgba(0,229,255,0.8)   0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 37% 11%, rgba(0,229,255,0.65) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 2%  34%, rgba(255,255,255,0.65) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 4%,  rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 82% 89%, rgba(255,255,255,0.65) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 22% 96%, rgba(255,255,255,0.55) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 96% 41%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 34% 72%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 70% 13%, rgba(255,255,255,0.55) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 47% 61%, rgba(255,255,255,0.45) 0%, transparent 100%),
    radial-gradient(1px 1px at 13% 27%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 73% 83%, rgba(255,255,255,0.45) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 43%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 32%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 56%, rgba(0,255,200,0.4)  0%, transparent 100%),
    radial-gradient(1px 1px at 54% 17%, rgba(255,255,255,0.35) 0%, transparent 100%),
    radial-gradient(1px 1px at 83% 71%, rgba(0,229,255,0.4)  0%, transparent 100%),
    radial-gradient(1px 1px at 26% 82%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 62% 49%, rgba(255,255,255,0.35) 0%, transparent 100%),
    radial-gradient(1px 1px at 1%  9%,  rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 99% 12%, rgba(255,255,255,0.4) 0%, transparent 100%);
}

/* Card centrada para index */
.card {
  position: relative;
  z-index: 1;
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 40px 44px;
  text-align: center;
  box-shadow: var(--glow2), 0 20px 60px rgba(0,0,0,0.7);
  max-width: 340px;
  width: 90%;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 24px; height: 24px;
  border-top: 1.5px solid var(--teal2); border-left: 1.5px solid var(--teal2);
  border-radius: 4px 0 0 0;
}
.card::after {
  content: ''; position: absolute; bottom: 0; right: 0;
  width: 24px; height: 24px;
  border-bottom: 1.5px solid var(--teal2); border-right: 1.5px solid var(--teal2);
  border-radius: 0 0 4px 0;
}
.logo {
  width: 52px; height: 52px;
  border: 1.5px solid var(--teal1); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 20px; color: var(--teal0);
  box-shadow: var(--glow2), inset 0 0 14px rgba(0,255,200,0.12);
  margin: 0 auto 20px;
  animation: pulse-ring 3s ease-in-out infinite;
}
.card h2 {
  font-family: var(--font-mono); font-size: 15px; color: var(--teal0);
  letter-spacing: 0.14em; text-shadow: 0 0 18px rgba(0,255,200,0.4);
  margin-bottom: 5px;
}
.subtitle {
  font-family: var(--font-mono); font-size: 9px; color: var(--text2);
  letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 30px;
}
.lang-label {
  font-family: var(--font-mono); font-size: 9px; color: var(--text2);
  letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 12px;
}
.lang-buttons { display: flex; gap: 10px; }
.lang-btn {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 14px 0;
  background: rgba(0,168,130,0.08);
  border: 1px solid var(--border2); border-radius: 4px;
  color: var(--text1); font-family: var(--font-mono);
  text-decoration: none; transition: all 0.2s;
}
.lang-btn:hover {
  background: rgba(0,168,130,0.2); border-color: var(--teal2);
  color: var(--teal0); box-shadow: var(--glow2);
}
.lang-btn .lg { font-size: 20px; letter-spacing: 0.06em; }
.lang-btn .sm { font-size: 9px; color: var(--text2); letter-spacing: 0.12em; }