@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Share+Tech+Mono&family=VT323&display=swap');

/* ─── VARIABLES ────────────────────────────────────── */
:root {
  --m0: #040609;
  --m1: #090d16;
  --m2: #101520;
  --m3: #18202e;
  --m4: #202a3c;
  --m5: #2c3a50;
  --m6: #3a4e68;

  --amber:      #ffb300;
  --amber-glow: rgba(255,179,0,0.6);
  --amber-wide: rgba(255,179,0,0.12);

  --green:      #2aff6f;
  --green-glow: rgba(42,255,111,0.55);

  --cyan:       #00d4ff;
  --cyan-glow:  rgba(0,212,255,0.5);
  --cyan-wide:  rgba(0,212,255,0.08);

  --red:        #ff3a1a;
  --red-glow:   rgba(255,58,26,0.6);

  --tx:     #c0d0e0;
  --tx-mid: #5a7898;
  --tx-dim: #2a3a4e;

  --f-disp: 'VT323', monospace;
  --f-ui:   'Orbitron', sans-serif;
  --f-body: 'Share Tech Mono', monospace;

  --bg-base:   #040609;
  --bg-grad-a: #07101c;
  --bg-grad-b: #060e18;

  /* Bezel colors — Orion/Shuttle MFDS style */
  --bz:      #1c2130;
  --bz-hi:   #2c3548;
  --bz-lo:   #0e1218;
  --bz-brkt: #4a5a70;
}

/* ─── RESET ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  background-color: var(--bg-base);
  background-image:
    repeating-linear-gradient(0deg,   rgba(255,255,255,0.014) 0px, rgba(255,255,255,0.014) 1px, transparent 1px, transparent 36px),
    repeating-linear-gradient(90deg,  rgba(255,255,255,0.014) 0px, rgba(255,255,255,0.014) 1px, transparent 1px, transparent 36px),
    repeating-linear-gradient(135deg, rgba(255,255,255,0.004) 0px, rgba(255,255,255,0.004) 1px, transparent 1px, transparent 5px),
    linear-gradient(160deg, var(--bg-grad-a) 0%, var(--bg-base) 45%, var(--bg-grad-b) 100%);
  color: var(--tx); font-family: var(--f-body); font-size: 14px; overflow-x: hidden;
}

/* ─── STARS ─────────────────────────────────────────── */
#stars-canvas { display: none; }

/* ─── APP ────────────────────────────────────────────── */
#app { position: relative; z-index: 1; display: flex; flex-direction: column; min-height: 100vh; }

/* ═══════════════════════════════════════════════════════
   MISSION HEADER
═══════════════════════════════════════════════════════ */
.mission-header {
  background: linear-gradient(180deg, var(--m2) 0%, var(--m1) 100%);
  border-bottom: 1px solid var(--m5);
  box-shadow: 0 4px 20px rgba(0,0,0,0.8), inset 0 -1px 0 var(--m4), 0 1px 0 rgba(255,255,255,0.03);
  padding: 0 20px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  position: sticky; top: 0; z-index: 200;
}

.mission-badge { display: flex; align-items: center; gap: 12px; padding: 12px 0; }

.badge-hex {
  width: 40px; height: 40px;
  background: linear-gradient(145deg, var(--m4), var(--m2));
  border: 1px solid var(--m5);
  clip-path: polygon(50% 0%, 93.3% 25%, 93.3% 75%, 50% 100%, 6.7% 75%, 6.7% 25%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 16px rgba(255,179,0,0.15);
}
.badge-hex-inner { font-family: var(--f-ui); font-size: 9px; font-weight: 900; color: var(--amber); letter-spacing: 1px; text-shadow: 0 0 8px var(--amber-glow); }

.badge-text { display: flex; flex-direction: column; gap: 2px; }
.badge-title { font-family: var(--f-ui); font-size: 22px; font-weight: 900; color: var(--amber); letter-spacing: 6px; text-shadow: 0 0 24px var(--amber-glow); line-height: 1; }
.badge-sub { font-family: var(--f-body); font-size: 9px; color: var(--tx-dim); letter-spacing: 3px; }

.status-rack { display: flex; gap: 10px; padding-left: 16px; border-left: 1px solid var(--m4); margin-left: 8px; }
.status-cell { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.status-led {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--m3); border: 1px solid var(--m4);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}
.status-led.on-green { background: var(--green); box-shadow: 0 0 7px var(--green-glow), 0 0 16px rgba(42,255,111,0.12); }
.status-led.on-amber { background: var(--amber); box-shadow: 0 0 7px var(--amber-glow), 0 0 16px var(--amber-wide); }
.status-led.blink { animation: led-blink 1.6s ease-in-out infinite; }
@keyframes led-blink { 0%,100%{opacity:1} 50%{opacity:0.12} }
.status-label { font-family: var(--f-ui); font-size: 7px; color: var(--tx-dim); letter-spacing: 1px; }

.mission-clock-wrap { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.clock-label { font-family: var(--f-ui); font-size: 7px; letter-spacing: 3px; color: var(--tx-dim); }
#mission-clock { font-family: var(--f-disp); font-size: 28px; color: var(--green); letter-spacing: 2px; text-shadow: 0 0 14px var(--green-glow); line-height: 1.35; padding-top: 2px; }

/* ─── NAV ────────────────────────────────────────────── */
nav.control-panel-nav { display: flex; gap: 5px; padding: 10px 0; flex-wrap: wrap; }

.ctrl-btn {
  position: relative;
  background: linear-gradient(180deg, var(--m3) 0%, var(--m2) 60%, var(--m1) 100%);
  border: 1px solid var(--m5);
  border-bottom: 2px solid var(--m0);
  border-right: 2px solid var(--m0);
  border-top: 1px solid var(--m6);
  color: var(--tx-dim);
  font-family: var(--f-ui); font-size: 9px; letter-spacing: 2px;
  padding: 8px 14px 8px 26px;
  cursor: pointer; border-radius: 3px;
  box-shadow: 3px 3px 7px rgba(0,0,0,0.75), inset 0 1px 0 rgba(255,255,255,0.05);
  transform: translateY(0); transition: color .1s, box-shadow .08s, transform .08s;
  white-space: nowrap;
}
.ctrl-btn::before {
  content: ''; position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--m2); border: 1px solid var(--m4);
  transition: all .15s;
}
.ctrl-btn:hover { color: var(--tx); }
.ctrl-btn.active {
  background: linear-gradient(180deg, var(--m1) 0%, var(--m0) 100%);
  color: var(--amber);
  border-top: 2px solid var(--m0); border-left: 2px solid var(--m0);
  border-bottom: 1px solid var(--m5); border-right: 1px solid var(--m5);
  box-shadow: 1px 1px 3px rgba(0,0,0,0.9), inset 2px 2px 5px rgba(0,0,0,0.6), inset 0 0 12px rgba(255,179,0,0.04);
  transform: translateY(1px);
}
.ctrl-btn.active::before { background: var(--amber); box-shadow: 0 0 7px var(--amber-glow); border-color: transparent; }

/* ═══════════════════════════════════════════════════════
   MAIN LAYOUT
═══════════════════════════════════════════════════════ */
main { flex: 1; padding: 20px; max-width: 1350px; width: 100%; margin: 0 auto; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-heading {
  font-family: var(--f-ui); font-size: 10px; font-weight: 700; letter-spacing: 6px;
  color: var(--amber); text-shadow: 0 0 18px var(--amber-glow);
  margin-bottom: 16px; display: flex; align-items: center; gap: 12px;
}
.tab-heading::before { content: ''; display: block; width: 3px; height: 14px; background: var(--amber); box-shadow: 0 0 8px var(--amber-glow); }
.tab-heading::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, var(--m4), transparent); }

.calc-layout {
  display: grid;
  grid-template-columns: 290px 1fr;
  grid-template-rows: auto auto;
  gap: 14px;
}
@media (max-width: 920px) { .calc-layout { grid-template-columns: 1fr; } }

.calc-inputs { grid-column: 1; grid-row: 1 / 3; display: flex; flex-direction: column; gap: 12px; }
.calc-viz    { grid-column: 2; grid-row: 1; }
.calc-output { grid-column: 2; grid-row: 2; }

/* ═══════════════════════════════════════════════════════
   INPUT PANELS
═══════════════════════════════════════════════════════ */
.panel {
  position: relative;
  background: linear-gradient(160deg, var(--m3) 0%, var(--m2) 50%, var(--m1) 100%);
  border-radius: 5px;
  border: 1px solid var(--m4);
  border-top: 1px solid var(--m5);
  border-right: 2px solid var(--m0);
  border-bottom: 2px solid var(--m0);
  box-shadow: 4px 4px 14px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.04);
}

.panel-header {
  background: linear-gradient(180deg, var(--m2), var(--m1));
  border-bottom: 1px solid var(--m4);
  box-shadow: inset 0 -1px 0 rgba(0,0,0,0.4);
  padding: 7px 14px 7px 22px;
  display: flex; align-items: center; gap: 8px;
}
.panel-header-text { font-family: var(--f-ui); font-size: 8px; font-weight: 700; letter-spacing: 4px; color: var(--tx-mid); text-transform: uppercase; line-height: 1.5; padding-top: 1px; }
.panel-header-led { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 6px var(--cyan-glow); margin-left: auto; }

.panel-body { padding: 14px; display: flex; flex-direction: column; gap: 10px; }

.instrument { display: flex; flex-direction: column; }
.instrument-label {
  font-family: var(--f-ui); font-size: 8px; font-weight: 600; letter-spacing: 2px;
  color: var(--tx-dim);
  background: linear-gradient(180deg, var(--m2), var(--m1));
  border: 1px solid var(--m3); border-bottom: none;
  border-radius: 3px 3px 0 0;
  padding: 6px 8px 4px;
  line-height: 1.5;
}

input[type="number"],
input[type="text"],
select {
  background: var(--m0);
  border: 1px solid var(--m3);
  border-top: 2px solid var(--m0);
  color: var(--amber);
  font-family: var(--f-disp); font-size: 21px; letter-spacing: 1px;
  padding: 7px 10px 3px;
  line-height: 1.35;
  border-radius: 0 0 3px 3px;
  width: 100%;
  text-shadow: 0 0 9px var(--amber-glow);
  box-shadow: inset 0 2px 5px rgba(0,0,0,0.7);
  transition: border-color .15s, text-shadow .15s;
  appearance: none; -webkit-appearance: none;
}
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='%23ffb300'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
  padding-right: 28px; cursor: pointer;
}
input:focus, select:focus { outline: none; border-color: var(--amber-lo, #804000); text-shadow: 0 0 16px var(--amber-glow); }
select option { background: var(--m2); color: var(--tx); font-family: var(--f-body); font-size: 14px; }

/* Toggle checkboxes */
/* Period d/h/m/s input row */
.period-inputs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--m0);
  border: 1px solid var(--m3);
  border-top: 2px solid var(--m0);
  border-radius: 0 0 3px 3px;
  box-shadow: inset 0 2px 5px rgba(0,0,0,0.7);
}
.period-field {
  position: relative;
  display: flex;
  align-items: center;
  border-right: 1px solid var(--m3);
}
.period-field:last-child { border-right: none; }
.period-field input {
  background: transparent;
  border: none;
  border-top: none;
  border-radius: 0;
  box-shadow: none;
  padding: 5px 20px 1px 8px;
  font-size: 17px;
  line-height: 1.35;
  width: 100%;
  text-shadow: 0 0 9px var(--amber-glow);
  color: var(--amber);
  font-family: var(--f-disp);
}
.period-field input:focus { outline: none; }
.period-unit {
  position: absolute;
  right: 4px;
  font-family: var(--f-ui);
  font-size: 7px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--tx-dim);
  pointer-events: none;
}

.toggle-row { display: flex; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--m3); }
.toggle-row:last-child { border-bottom: none; }
.toggle-label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-family: var(--f-ui); font-size: 8px; letter-spacing: 1.5px; color: var(--tx-mid); }
input[type="checkbox"] { accent-color: var(--cyan); width: 14px; height: 14px; cursor: pointer; }

/* Buttons */
.btn {
  background: linear-gradient(180deg, var(--m4), var(--m2));
  border: 1px solid var(--m5); border-top: 1px solid var(--m6);
  border-bottom: 2px solid var(--m0); border-right: 2px solid var(--m0);
  color: var(--cyan); font-family: var(--f-ui); font-size: 9px; letter-spacing: 2px;
  padding: 9px 18px; border-radius: 3px; cursor: pointer; width: 100%;
  box-shadow: 3px 3px 7px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.05);
  text-shadow: 0 0 8px var(--cyan-glow); transition: all .08s ease;
}
.btn:hover { color: #fff; }
.btn:active { transform: translateY(1px); box-shadow: 1px 1px 3px rgba(0,0,0,0.9), inset 2px 2px 4px rgba(0,0,0,0.6); }

.btn-icon { background: transparent; border: 1px solid var(--m4); color: var(--tx-mid); font-size: 11px; padding: 3px 8px; border-radius: 2px; cursor: pointer; font-family: var(--f-body); transition: all .1s; }
.btn-icon:hover { border-color: var(--red); color: var(--red); }

/* ═══════════════════════════════════════════════════════
   MFDS DISPLAY — Orion/Shuttle capsule style
   Multi-layer bezel with L-bracket corner markings
═══════════════════════════════════════════════════════ */
.mfds-outer {
  /* Mounting plate — brushed dark aluminum */
  position: relative;
  background: linear-gradient(168deg, #1e2434 0%, #151a26 50%, #0f1320 100%);
  border-radius: 10px;
  padding: 18px 18px 22px;
  border: 1px solid var(--m4);
  border-top: 1px solid var(--m5);
  box-shadow:
    6px 10px 28px rgba(0,0,0,0.95),
    1px 2px 4px rgba(0,0,0,0.7),
    inset 0 2px 0 rgba(255,255,255,0.06),
    inset 0 -1px 0 rgba(0,0,0,0.5),
    inset -1px 0 0 rgba(0,0,0,0.3);
}

/* removed — L-brackets moved to .mfds-corners inside .mfds-inner */

/* Inner bezel recess lip — thin dark ring before the glass */
.mfds-inner {
  background: var(--m0);
  border-radius: 5px;
  border: 2px solid #06080f;
  box-shadow:
    inset 0 3px 8px rgba(0,0,0,0.9),
    0 0 0 1px #1a2030,
    0 0 14px rgba(0,180,255,0.06);
  position: relative;
  overflow: hidden;
}

/* Screen surface (scanlines + vignette) */
.mfds-inner::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(to bottom,
      rgba(0,0,0,0) 0px, rgba(0,0,0,0) 3px,
      rgba(0,0,0,0.16) 3px, rgba(0,0,0,0.16) 4px
    );
  pointer-events: none;
  z-index: 20;
  border-radius: 4px;
}
.mfds-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
  z-index: 21;
  border-radius: 4px;
}

.viz-canvas { display: block; width: 100%; background: #010308; border-radius: 3px; }

/* L-bracket corner marks — inside the display glass, above scanlines */
.mfds-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 22;
  background:
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 0 0/18px 2px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 0 0/2px 18px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 100% 0/18px 2px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 100% 0/2px 18px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 0 100%/18px 2px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 0 100%/2px 18px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 100% 100%/18px 2px no-repeat,
    linear-gradient(var(--bz-brkt),var(--bz-brkt)) 100% 100%/2px 18px no-repeat;
}

/* Status strip at bottom of mount */
.mfds-statusbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 4px 0;
  position: relative; z-index: 2;
}
.mfds-id { font-family: var(--f-ui); font-size: 7px; letter-spacing: 2px; color: var(--tx-dim); }
.mfds-sys { display: flex; gap: 8px; }
.mfds-dot { width: 5px; height: 5px; border-radius: 50%; }
.mfds-dot.active { background: var(--green); box-shadow: 0 0 5px var(--green-glow); animation: led-blink 3s ease-in-out infinite; }
.mfds-dot.warn   { background: var(--amber); box-shadow: 0 0 5px var(--amber-glow); animation: led-blink 1s ease-in-out infinite; }
.mfds-dot.off    { background: var(--m4); }

/* ═══════════════════════════════════════════════════════
   RESULT READOUTS
═══════════════════════════════════════════════════════ */
.result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 8px; }

.result-card {
  background: var(--m0);
  border: 1px solid var(--m3);
  border-radius: 3px;
  padding: 10px 12px;
  box-shadow: inset 0 1px 4px rgba(0,0,0,0.6);
  position: relative;
}
.result-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent); }

.result-card.accent { border-color: rgba(0,212,255,0.22); box-shadow: inset 0 1px 4px rgba(0,0,0,0.6), 0 0 8px rgba(0,212,255,0.04); }
.result-card.ok     { border-color: rgba(42,255,111,0.25); box-shadow: inset 0 1px 4px rgba(0,0,0,0.6), 0 0 8px rgba(42,255,111,0.04); }
.result-card.warn   { border-color: rgba(255,58,26,0.3);  background: rgba(255,30,10,0.03); }

.result-label { font-family: var(--f-ui); font-size: 7px; letter-spacing: 2px; color: var(--tx-dim); text-transform: uppercase; margin-bottom: 5px; line-height: 1.6; padding-top: 2px; }
.result-value { font-family: var(--f-disp); font-size: 28px; color: var(--amber); text-shadow: 0 0 10px var(--amber-glow); line-height: 1.35; padding-top: 2px; letter-spacing: 1px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-card.ok   .result-value { color: var(--green); text-shadow: 0 0 10px var(--green-glow); }
.result-card.warn .result-value { color: var(--red);   text-shadow: 0 0 10px var(--red-glow); }
.result-sub { font-family: var(--f-body); font-size: 10px; color: var(--tx-mid); margin-top: 4px; }

.section-title {
  font-family: var(--f-ui); font-size: 8px; letter-spacing: 3px; color: var(--tx-mid);
  text-transform: uppercase; margin-bottom: 8px;
  display: flex; align-items: center; gap: 8px;
  line-height: 1.5; padding-top: 2px;
}
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--m3); }

.info-box {
  background: rgba(0,212,255,0.03);
  border: 1px solid rgba(0,212,255,0.1);
  border-left: 2px solid rgba(0,212,255,0.3);
  border-radius: 0 3px 3px 0;
  padding: 10px 14px;
  font-size: 11px; color: var(--tx-mid); line-height: 1.6; margin-top: 10px;
}
.warn-text { color: var(--red); font-family: var(--f-body); font-size: 13px; text-shadow: 0 0 8px var(--red-glow); padding: 10px 0; }

/* ═══════════════════════════════════════════════════════
   MISSION ΔV PLANNER — phase flow diagram
═══════════════════════════════════════════════════════ */
.phase-flow { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }

.phase-row {
  display: grid;
  grid-template-columns: 160px 1fr 100px;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--m1);
  border: 1px solid var(--m3);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}
.phase-row::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
}
.phase-row.phase-launch::before  { background: #ff8844; }
.phase-row.phase-transfer::before{ background: var(--cyan); }
.phase-row.phase-capture::before { background: #aa66ff; }
.phase-row.phase-land::before    { background: var(--amber); }
.phase-row.phase-ascent::before  { background: #ff8844; }
.phase-row.phase-free::before    { background: var(--green); }

.phase-bar-wrap {
  height: 12px;
  background: var(--m0);
  border: 1px solid var(--m3);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
}
.phase-bar { height: 100%; border-radius: 2px; transition: width .4s ease; }

.phase-name { font-family: var(--f-ui); font-size: 8px; letter-spacing: 1px; color: var(--tx-mid); }
.phase-dv   { font-family: var(--f-disp); font-size: 22px; color: var(--amber); text-shadow: 0 0 8px var(--amber-glow); text-align: right; letter-spacing: 1px; line-height: 1.35; padding-top: 2px; }
.phase-dv.free { color: var(--green); font-size: 18px; text-shadow: 0 0 8px var(--green-glow); }

.phase-total {
  background: var(--m0);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 3px;
  padding: 10px 14px;
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 8px;
  box-shadow: 0 0 10px rgba(0,212,255,0.04);
}
.phase-total-label { font-family: var(--f-ui); font-size: 9px; letter-spacing: 3px; color: var(--cyan); }
.phase-total-val   { font-family: var(--f-disp); font-size: 36px; color: var(--cyan); text-shadow: 0 0 16px var(--cyan-glow); letter-spacing: 2px; line-height: 1.35; padding-top: 2px; }

/* ═══════════════════════════════════════════════════════
   DELTA-V ROCKET STAGES (legacy, kept for reference)
═══════════════════════════════════════════════════════ */
.stage-card { background: var(--m0); border: 1px solid var(--m3); border-radius: 3px; padding: 12px; margin-bottom: 8px; box-shadow: inset 0 1px 4px rgba(0,0,0,0.5); }
.stage-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--m3); }
.stage-name { background: transparent; border: none; border-bottom: 1px solid var(--m4); color: var(--cyan); font-family: var(--f-ui); font-size: 10px; font-weight: 700; letter-spacing: 2px; width: 160px; padding: 2px 4px; text-shadow: 0 0 8px var(--cyan-glow); }
.stage-name:focus { outline: none; border-bottom-color: var(--cyan); }
.stage-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* ═══════════════════════════════════════════════════════
   COMMNET SIGNAL BAR
═══════════════════════════════════════════════════════ */
.signal-bar-wrap { display: flex; align-items: center; gap: 10px; margin: 6px 0 2px; }
.signal-bar-track { flex: 1; height: 10px; background: var(--m2); border-radius: 2px; border: 1px solid var(--m3); overflow: hidden; box-shadow: inset 0 1px 3px rgba(0,0,0,0.5); }
.signal-bar { height: 100%; border-radius: 2px; transition: width .4s ease; }
.signal-pct { font-family: var(--f-disp); font-size: 22px; white-space: nowrap; min-width: 60px; text-align: right; line-height: 1.35; padding-top: 2px; }

/* ═══════════════════════════════════════════════════════
   DSN COMPARISON TABLE
═══════════════════════════════════════════════════════ */
.dsn-table {
  width: 100%; border-collapse: collapse;
  font-family: var(--f-body); font-size: 11px; color: var(--tx-mid);
  border: 1px solid var(--m3); border-radius: 3px; overflow: hidden;
  margin-top: 6px;
}
.dsn-table th {
  background: var(--m2); color: var(--tx-dim);
  font-family: var(--f-ui); font-size: 7px; letter-spacing: 2px; text-transform: uppercase;
  padding: 5px 10px; border-bottom: 1px solid var(--m4); text-align: left;
}
.dsn-table td {
  padding: 5px 10px; border-bottom: 1px solid var(--m3);
  font-family: var(--f-disp); font-size: 16px; color: var(--tx-mid);
}
.dsn-table tr:last-child td { border-bottom: none; }
.dsn-table td:first-child { font-family: var(--f-ui); font-size: 8px; letter-spacing: 1px; color: var(--tx-dim); }
.dsn-row-sel td { color: var(--amber) !important; background: rgba(255,179,0,0.04); }
.dsn-row-sel td:first-child { color: var(--amber) !important; }
.sig-bar-wrap {
  display: inline-block; vertical-align: middle;
  width: 72px; height: 8px;
  background: var(--m3); border: 1px solid var(--m4); border-radius: 2px;
  overflow: hidden; margin-right: 5px;
}
.sig-bar-fill { height: 100%; border-radius: 2px; transition: width 0.3s; }
.sig-bar-pct { font-family: var(--f-body); font-size: 11px; vertical-align: middle; }

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */

/* ── 1100px: narrow desktop ── */
@media (max-width: 1100px) {
  .calc-layout { grid-template-columns: 255px 1fr; }
}

/* ── 920px: tablet landscape / stack ── */
@media (max-width: 920px) {
  .calc-layout { grid-template-columns: 1fr; }
  .calc-inputs, .calc-viz, .calc-output { grid-column: 1; grid-row: auto; }
  .calc-inputs { flex-direction: row; flex-wrap: wrap; }
  .calc-inputs > .panel { flex: 1 1 260px; }
}

/* ── 768px: tablet portrait ── */
@media (max-width: 768px) {
  .mission-header {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    padding: 8px 14px;
    gap: 8px 14px;
  }
  nav.control-panel-nav { grid-column: 1 / -1; padding: 4px 0; gap: 4px; }
  .badge-sub { display: none; }
  .badge-title { font-size: 18px; letter-spacing: 4px; }
  main { padding: 14px; }
  .phase-row { grid-template-columns: 120px 1fr 80px; }
  .phase-name { font-size: 7px; }
}

/* ── 600px: large phone ── */
@media (max-width: 600px) {
  html { scroll-padding-top: 120px; }

  .mission-header {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    padding: 8px 12px;
    gap: 6px;
  }
  .mission-header > div:first-child { display: flex; align-items: center; justify-content: space-between; }
  .mission-clock-wrap { align-items: flex-start; }
  #mission-clock { font-size: 22px; letter-spacing: 1px; }
  .clock-label { font-size: 6px; letter-spacing: 2px; }
  .status-rack { display: none; }

  nav.control-panel-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px; padding: 0; width: 100%;
  }
  .ctrl-btn {
    padding: 10px 4px;
    font-size: 7px; letter-spacing: 1px;
    text-align: center;
    min-height: 40px;
    padding-left: 4px;
  }
  .ctrl-btn::before { display: none; }

  main { padding: 10px; }
  .tab-heading { font-size: 9px; letter-spacing: 3px; margin-bottom: 10px; }

  .calc-inputs { flex-direction: column; }
  .calc-inputs > .panel { flex: none; }

  .result-grid { grid-template-columns: 1fr 1fr; }
  .result-value { font-size: 22px; }
  .phase-total-val { font-size: 26px; }

  .stage-inputs { grid-template-columns: 1fr; }

  .mfds-outer { padding: 10px 10px 14px; }
  .mfds-id { font-size: 6px; letter-spacing: 1px; }

  .dsn-table td { font-size: 13px; padding: 4px 7px; }
  .dsn-table th { padding: 4px 7px; }
}

/* ── 480px: small phone ── */
@media (max-width: 480px) {
  nav.control-panel-nav { grid-template-columns: repeat(2, 1fr); }

  .result-grid { grid-template-columns: 1fr; }
  .result-value { font-size: 20px; }

  .period-inputs { grid-template-columns: repeat(2, 1fr); }

  .phase-row {
    grid-template-columns: 1fr 72px;
    gap: 6px;
  }
  .phase-bar-wrap { display: none; }
  .phase-name { grid-column: 1 / -1; margin-bottom: 2px; }

  input[type="number"], input[type="text"], select { font-size: 17px; }

  .badge-hex { width: 32px; height: 32px; }
  .badge-title { font-size: 15px; letter-spacing: 3px; }
}

/* ── touch: ensure tap targets ── */
@media (pointer: coarse) {
  .ctrl-btn { min-height: 44px; }
  input[type="number"], select { min-height: 40px; }
  input[type="checkbox"] { width: 18px; height: 18px; }
}

/* ═══════════════════════════════════════════════════════
   SETTINGS TAB
═══════════════════════════════════════════════════════ */
.settings-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
}
@media (max-width: 768px) { .settings-layout { grid-template-columns: 1fr; } }

.settings-section {
  display: flex; flex-direction: column; gap: 10px;
}
.settings-section-label {
  font-family: var(--f-ui); font-size: 7px; font-weight: 700;
  letter-spacing: 3px; color: var(--tx-dim); text-transform: uppercase;
  margin-bottom: 12px; line-height: 1.5; padding-top: 2px;
}

/* ── Theme grid ── */
.theme-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.theme-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--m1); border: 1px solid var(--m4); border-radius: 3px;
  cursor: pointer; font-family: var(--f-body); font-size: 12px; color: var(--tx-mid);
  transition: border-color .15s, color .15s, box-shadow .15s; text-align: left;
}
.theme-btn:hover { border-color: var(--m6); color: var(--tx); }
.theme-btn.active { border-color: var(--amber); color: var(--amber); box-shadow: 0 0 8px var(--amber-wide); }
.theme-swatch {
  width: 20px; height: 20px; border-radius: 3px; flex-shrink: 0;
  border: 1px solid rgba(255,255,255,0.08);
}

/* ── Toggle switch ── */
.settings-toggle-row {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; padding: 4px 0; user-select: none;
}
.settings-toggle-label { flex: 1; font-family: var(--f-body); font-size: 12px; color: var(--tx); }
.settings-toggle-row input[type="checkbox"] { display: none; }
.settings-toggle-track {
  width: 38px; height: 21px; background: var(--m0);
  border: 1px solid var(--m5); border-radius: 11px;
  position: relative; flex-shrink: 0;
  transition: background .2s, border-color .2s, box-shadow .2s;
}
.settings-toggle-row input:checked + .settings-toggle-track {
  background: rgba(0,212,255,0.12);
  border-color: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
}
.settings-toggle-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--m5); transition: transform .2s, background .2s;
}
.settings-toggle-row input:checked + .settings-toggle-track .settings-toggle-thumb {
  transform: translateX(17px); background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan-glow);
}
.settings-hint {
  font-family: var(--f-body); font-size: 9px; color: var(--tx-dim);
  line-height: 1.6; margin-top: 8px;
}

/* ── Licenses ── */
.settings-section-licenses { flex: 1; }
.license-list { display: flex; flex-direction: column; gap: 6px; }
.license-item {
  padding: 8px 10px; background: var(--m0);
  border: 1px solid var(--m3); border-radius: 3px;
}
.license-name { font-family: var(--f-body); font-size: 11px; color: var(--tx); margin-bottom: 2px; }
.license-detail { font-family: var(--f-body); font-size: 9px; color: var(--tx-dim); line-height: 1.5; }

/* ═══════════════════════════════════════════════════════
   THEMES
═══════════════════════════════════════════════════════ */

/* ── Duna (rust/red) ── */
:root[data-theme="duna"] {
  --amber:      #ff7733;
  --amber-glow: rgba(255,119,51,0.6);
  --amber-wide: rgba(255,119,51,0.12);
  --cyan:       #ff4422;
  --cyan-glow:  rgba(255,68,34,0.5);
  --cyan-wide:  rgba(255,68,34,0.08);
  --green:      #ffaa44;
  --green-glow: rgba(255,170,68,0.55);
  --m0: #0d0402; --m1: #160806; --m2: #1e0e0a;
  --m3: #2a1610; --m4: #381e16; --m5: #4a2820; --m6: #5e3428;
  --bg-base: #0a0302; --bg-grad-a: #160806; --bg-grad-b: #0e0504;
}

/* ── Jool (acid green) ── */
:root[data-theme="jool"] {
  --amber:      #88ff44;
  --amber-glow: rgba(136,255,68,0.6);
  --amber-wide: rgba(136,255,68,0.12);
  --cyan:       #44ff88;
  --cyan-glow:  rgba(68,255,136,0.5);
  --cyan-wide:  rgba(68,255,136,0.08);
  --green:      #ccff44;
  --green-glow: rgba(204,255,68,0.55);
  --m0: #030803; --m1: #060e06; --m2: #0a150a;
  --m3: #101e10; --m4: #162816; --m5: #1e3620; --m6: #284428;
  --bg-base: #020602; --bg-grad-a: #050f05; --bg-grad-b: #040804;
}

/* ── Kerbol (solar orange) ── */
:root[data-theme="kerbol"] {
  --amber:      #ffcc00;
  --amber-glow: rgba(255,204,0,0.6);
  --amber-wide: rgba(255,204,0,0.12);
  --cyan:       #ff9900;
  --cyan-glow:  rgba(255,153,0,0.5);
  --cyan-wide:  rgba(255,153,0,0.08);
  --green:      #ffee44;
  --green-glow: rgba(255,238,68,0.55);
  --m0: #060400; --m1: #0e0800; --m2: #180e00;
  --m3: #221400; --m4: #2e1c00; --m5: #3c2800; --m6: #4e3800;
  --bg-base: #050300; --bg-grad-a: #0e0900; --bg-grad-b: #070500;
}