*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --earth-g: 9.81;
  --moon-g: 1.62;
  --mars-g: 3.71;
  --pluto-g: 0.62;
  --mercury-g: 3.7;
  --venus-g: 8.87;
  --jupiter-g: 24.79;
  --saturn-g: 10.44;
  --uranus-g: 8.69;
  --neptune-g: 11.15;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --ease-jump: cubic-bezier(0.33, 0, 0.15, 1);
  --ease-land: cubic-bezier(0.85, 0, 0.95, 0.55);
  --radius-panel: 14px;
  --radius-card: 12px;
  --surface: #06060a;
  --border: rgba(255, 255, 255, 0.07);
  --text: rgba(255, 255, 255, 0.92);
  --text-muted: rgba(255, 255, 255, 0.45);
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

html,
body {
  min-height: 100%;
  min-height: 100dvh;
}

body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(40, 60, 100, 0.12) 0%, transparent 50%),
    var(--surface);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

/* —— Header —— */
.header {
  position: relative;
  z-index: 10;
  flex-shrink: 0;
  padding: 0.9rem 1.5rem 0.7rem;
  background: rgba(6, 6, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.header__title {
  grid-column: 2;
  justify-self: center;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}

.header__actions {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.display-phase {
  display: none;
  grid-column: 1;
  justify-self: start;
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(126, 200, 255, 0.85);
  white-space: nowrap;
}

.display-phase--ready {
  color: #9de0ff;
  animation: pip-pulse 0.6s ease infinite alternate;
}

.display-phase--jumping {
  color: #ffb450;
  animation: pip-pulse 0.25s ease infinite alternate;
}

.sync-status {
  display: none;
  font-size: 0.68rem;
  color: var(--text-muted);
  white-space: nowrap;
  margin-right: 0.35rem;
}

.sync-status--ok {
  color: #6ee7a0;
}

.header__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.header__icon-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.1);
}

.header__icon-btn svg {
  width: 18px;
  height: 18px;
}

/* —— Scale status (settings panel) —— */
.scale-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.scale-bar--settings {
  margin-bottom: 1rem;
}

.scale-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #666;
  flex-shrink: 0;
}

.scale-dot[data-state="live"] { background: #4ade80; box-shadow: 0 0 8px #4ade80; }
.scale-dot[data-state="connecting"] { background: #fbbf24; animation: pulse-dot 1s infinite; }
.scale-dot[data-state="error"] { background: #f87171; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.scale-bar__status {
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.5);
}

.scale-bar__kg {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.85);
}

.scale-bar__btn {
  font-family: inherit;
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.75);
  cursor: pointer;
}

.settings-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.settings-actions .btn-secondary {
  width: 100%;
}

.modal__form-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.modal__form-head .modal__title {
  margin-bottom: 0;
}

.modal__close {
  font-size: 1.5rem;
  line-height: 1;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
}

.modal__close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.modal--settings .modal__form {
  text-align: left;
}

.modal__form--about {
  text-align: center;
  position: relative;
  padding: 2.5rem 2rem 2rem;
  background: #181b24;
  border-color: rgba(255, 255, 255, 0.12);
  width: min(400px, 92vw);
}

.about-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.modal__close--float {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.about-lead {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.65;
  margin-bottom: 0.85rem;
}

.about-lead strong {
  color: #fff;
  font-weight: 700;
}

.about-body {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.65;
  margin-bottom: 0;
}

.about-steps {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.about-steps li {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.45;
}

.about-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(126, 200, 255, 0.7);
}

.about-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.4rem 0.55rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
}

.about-link {
  color: #8ecfff;
  font-weight: 600;
  text-decoration: none;
}

.about-link:hover {
  text-decoration: underline;
  color: #b0dfff;
}

.about-label {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 500;
}

.about-dot {
  color: rgba(255, 255, 255, 0.3);
}

.about-tagline {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.38);
  margin-top: 0.85rem;
  margin-bottom: 0;
  line-height: 1.4;
}

/* —— Exhibit banner —— */
.exhibit-banner {
  flex-shrink: 0;
  text-align: center;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.exhibit-banner__phase {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.exhibit-banner__countdown {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
}

.exhibit-banner__impact {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.panel--impact-flash .panel__hud {
  animation: impact-flash 0.6s ease-out;
}

.panel--live {
  outline: 1px solid rgba(255, 180, 80, 0.45);
  box-shadow:
    0 0 24px rgba(255, 180, 80, 0.18),
    inset 0 0 40px rgba(255, 180, 80, 0.04);
}

.panel--live .jump-meter__fill {
  transition: height 0.08s linear !important;
  box-shadow:
    0 0 20px rgba(255, 200, 120, 0.5),
    0 -2px 8px rgba(255, 255, 255, 0.5) inset !important;
}

.panel--live .jump-meter__value {
  color: rgba(255, 210, 140, 0.95);
}

@keyframes impact-flash {
  0% { background: rgba(255, 180, 100, 0.35); }
  100% { background: transparent; }
}

/* —— Panels grid —— */
.panels {
  position: relative;
  z-index: 1;
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  min-height: 0;
  padding: 0.5rem 0.65rem 0.65rem;
  background: var(--surface);
}

.panel {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-radius: var(--radius-panel);
  border: 1px solid var(--border);
  background: #0e0e14;
  box-shadow:
    0 6px 28px rgba(0, 0, 0, 0.5),
    0 2px 12px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: box-shadow 0.4s ease, transform 0.4s ease;
}

.panel:hover {
  transform: translateY(-2px);
  box-shadow:
    0 12px 48px rgba(0, 0, 0, 0.6),
    0 4px 16px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.panel--earth:hover { 
  box-shadow: 
    0 12px 48px rgba(40, 120, 80, 0.2),
    0 6px 28px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(120, 200, 140, 0.1); 
}

.panel--moon:hover { 
  box-shadow: 
    0 12px 48px rgba(100, 140, 220, 0.16),
    0 6px 28px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(140, 170, 220, 0.08); 
}

.panel--mars:hover { 
  box-shadow: 
    0 12px 48px rgba(180, 80, 40, 0.2),
    0 6px 28px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(220, 120, 80, 0.1); 
}

.panel--pluto:hover { 
  box-shadow: 
    0 12px 48px rgba(120, 140, 180, 0.16),
    0 6px 28px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(160, 180, 220, 0.08); 
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border-radius: inherit;
  box-shadow:
    inset 0 0 100px rgba(0, 0, 0, 0.3),
    inset 0 -60px 80px rgba(0, 0, 0, 0.2);
  background: 
    radial-gradient(ellipse 100% 40% at 50% 0%, rgba(255, 255, 255, 0.02) 0%, transparent 60%),
    radial-gradient(ellipse 100% 30% at 50% 100%, rgba(0, 0, 0, 0.3) 0%, transparent 60%);
}

/* —— Sky + ground environments —— */
.panel__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  --ground-h: 38%;
}

.panel__sky {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: calc(100% - var(--ground-h) + 28px);
}

.panel__sky::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  pointer-events: none;
}

.panel__ground {
  position: absolute;
  bottom: 0;
  left: -5%;
  right: -5%;
  height: calc(var(--ground-h) + 8px);
  clip-path: ellipse(88% 100% at 50% 100%);
}

.panel__platform {
  position: absolute;
  top: 6px;
  left: 10%;
  right: 10%;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(255, 255, 255, 0.2) 100%
  );
  box-shadow:
    0 0 20px rgba(255, 255, 255, 0.15),
    0 3px 12px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    inset 0 -1px 2px rgba(0, 0, 0, 0.2);
}

.panel__platform::before {
  content: "";
  position: absolute;
  inset: -24px -35%;
  top: 50%;
  background: radial-gradient(
    ellipse,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0.02) 50%,
    transparent 75%
  );
  pointer-events: none;
}

.panel__platform::after {
  content: "";
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.8) 50%,
    transparent 100%
  );
  border-radius: 1px;
  filter: blur(0.5px);
}

.panel--earth .panel__platform {
  background: linear-gradient(
    180deg,
    rgba(180, 240, 190, 0.55) 0%,
    rgba(120, 200, 140, 0.25) 100%
  );
  box-shadow:
    0 0 24px rgba(120, 200, 140, 0.2),
    0 3px 12px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(180, 240, 190, 0.7),
    inset 0 -1px 2px rgba(0, 0, 0, 0.2);
}

.panel--moon .panel__platform {
  background: linear-gradient(
    180deg,
    rgba(230, 230, 245, 0.6) 0%,
    rgba(180, 180, 200, 0.3) 100%
  );
  box-shadow:
    0 0 24px rgba(200, 200, 230, 0.18),
    0 3px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(230, 230, 245, 0.7),
    inset 0 -1px 2px rgba(0, 0, 0, 0.25);
}

.panel--mars .panel__platform {
  background: linear-gradient(
    180deg,
    rgba(255, 200, 160, 0.55) 0%,
    rgba(220, 120, 80, 0.28) 100%
  );
  box-shadow:
    0 0 24px rgba(220, 140, 100, 0.2),
    0 3px 12px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 200, 160, 0.7),
    inset 0 -1px 2px rgba(0, 0, 0, 0.2);
}

.panel--pluto .panel__platform {
  background: linear-gradient(
    180deg,
    rgba(240, 230, 220, 0.58) 0%,
    rgba(190, 180, 170, 0.32) 100%
  );
  box-shadow:
    0 0 24px rgba(220, 210, 200, 0.18),
    0 3px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(240, 230, 220, 0.7),
    inset 0 -1px 2px rgba(0, 0, 0, 0.22);
}

/* Earth */
.panel--earth .panel__sky {
  background: linear-gradient(
    180deg,
    #0a3d6b 0%,
    #1a5f9e 22%,
    #3d8ec4 48%,
    #7ebde8 72%,
    #b5daf2 92%,
    #c8e6f8 100%
  );
}

.panel--earth .panel__sky::before {
  content: "";
  position: absolute;
  top: 10%;
  left: 18%;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle, #fffef5 0%, #ffe9a0 35%, rgba(255, 200, 80, 0) 70%);
  box-shadow: 0 0 40px rgba(255, 220, 120, 0.55);
  opacity: 0.9;
}

.panel--earth .panel__sky::after {
  background: linear-gradient(to bottom, transparent 0%, rgba(52, 98, 58, 0.35) 100%);
}

.panel--earth .panel__clouds {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 32% at 20% 38%, rgba(255, 255, 255, 0.7) 0%, transparent 100%),
    radial-gradient(ellipse 50% 26% at 72% 24%, rgba(255, 255, 255, 0.55) 0%, transparent 100%),
    radial-gradient(ellipse 40% 20% at 48% 55%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
    radial-gradient(ellipse 30% 15% at 85% 48%, rgba(255, 255, 255, 0.3) 0%, transparent 100%);
  animation: clouds-drift 28s ease-in-out infinite alternate;
}

@keyframes clouds-drift {
  0% { transform: translateX(0); }
  100% { transform: translateX(3%); }
}

.panel--earth .panel__ground {
  background:
    radial-gradient(ellipse 90% 55% at 35% 0%, rgba(110, 160, 85, 0.45) 0%, transparent 65%),
    radial-gradient(ellipse 50% 35% at 75% 15%, rgba(80, 130, 65, 0.3) 0%, transparent 60%),
    linear-gradient(180deg, #4a7a48 0%, #356535 38%, #244828 68%, #162e18 100%);
}

/* Moon */
.panel--moon .panel__sky {
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, #1a1a28 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(60, 80, 140, 0.08) 0%, transparent 100%),
    linear-gradient(180deg, #020208 0%, #060610 50%, #0c0c18 100%);
}

.panel--moon .panel__sky::after {
  background: linear-gradient(to bottom, transparent 0%, rgba(70, 70, 78, 0.4) 100%);
}

.panel--moon .panel__stars {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1.5px 1.5px at 12% 18%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 42%, rgba(255, 255, 255, 0.85) 50%, transparent 51%),
    radial-gradient(2px 2px at 55% 12%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 28%, rgba(255, 255, 255, 0.8) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 90% 55%, rgba(255, 255, 255, 0.75) 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 65%, rgba(255, 255, 255, 0.7) 50%, transparent 51%),
    radial-gradient(1px 1px at 42% 72%, rgba(255, 255, 255, 0.65) 50%, transparent 51%),
    radial-gradient(1px 1px at 65% 38%, rgba(255, 255, 255, 0.6) 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 82%, rgba(255, 255, 255, 0.55) 50%, transparent 51%);
}

.panel--moon .panel__earth-distant {
  position: absolute;
  top: 12%;
  right: 11%;
  width: clamp(48px, 12vw, 64px);
  height: clamp(48px, 12vw, 64px);
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 38%, #7ed0ff 0%, #4090c8 20%, #2868a0 45%, #143050 100%);
  box-shadow:
    0 0 0 3px rgba(120, 180, 255, 0.15),
    0 0 32px rgba(100, 170, 255, 0.5),
    0 0 80px rgba(80, 140, 220, 0.25);
  animation: earth-glow 4s ease-in-out infinite alternate;
}

@keyframes earth-glow {
  0% { box-shadow: 0 0 0 3px rgba(120, 180, 255, 0.12), 0 0 28px rgba(100, 170, 255, 0.45), 0 0 70px rgba(80, 140, 220, 0.2); }
  100% { box-shadow: 0 0 0 4px rgba(120, 180, 255, 0.2), 0 0 40px rgba(100, 170, 255, 0.6), 0 0 90px rgba(80, 140, 220, 0.3); }
}

.panel--moon .panel__earth-distant::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background:
    radial-gradient(ellipse 38% 30% at 60% 58%, #44995a 0%, transparent 100%),
    radial-gradient(ellipse 24% 20% at 30% 40%, #55aa66 0%, transparent 100%),
    radial-gradient(ellipse 18% 14% at 72% 35%, #3d8850 0%, transparent 100%);
  opacity: 0.8;
}

.panel--moon .panel__ground {
  background:
    radial-gradient(ellipse 24% 16% at 25% 20%, #7a7a84 0%, #52525a 35%, transparent 72%),
    radial-gradient(ellipse 20% 14% at 70% 28%, #82828c 0%, #585860 38%, transparent 70%),
    radial-gradient(ellipse 16% 12% at 48% 48%, #6e6e76 0%, transparent 75%),
    radial-gradient(ellipse 12% 8% at 15% 55%, #686870 0%, transparent 80%),
    linear-gradient(180deg, #94949c 0%, #6e6e76 30%, #4a4a52 65%, #303038 100%);
}

/* Mars */
.panel--mars .panel__sky {
  background: linear-gradient(
    180deg,
    #2a0e0a 0%,
    #6b2818 28%,
    #b05038 55%,
    #d88870 78%,
    #ecc0b0 100%
  );
}

.panel--mars .panel__sky::after {
  background: linear-gradient(to bottom, transparent 0%, rgba(140, 50, 25, 0.45) 100%);
}

.panel--mars .panel__haze {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 55% at 50% 100%, rgba(220, 140, 100, 0.3) 0%, transparent 55%),
    radial-gradient(ellipse 50% 30% at 20% 30%, rgba(255, 180, 140, 0.08) 0%, transparent 100%);
}

.panel--mars .panel__ground {
  background:
    radial-gradient(ellipse 45% 28% at 22% 18%, #8b3820 0%, transparent 100%),
    radial-gradient(ellipse 35% 22% at 78% 32%, #6b2810 0%, transparent 100%),
    radial-gradient(ellipse 55% 35% at 50% 8%, rgba(200, 90, 50, 0.25) 0%, transparent 100%),
    linear-gradient(180deg, #c85828 0%, #9a4018 35%, #6b2808 68%, #421808 100%);
}

/* Pluto */
.panel--pluto .panel__sky {
  background:
    radial-gradient(ellipse 70% 45% at 30% 0%, rgba(80, 60, 140, 0.15) 0%, transparent 100%),
    radial-gradient(ellipse 50% 35% at 85% 25%, rgba(60, 80, 120, 0.1) 0%, transparent 100%),
    linear-gradient(180deg, #04040c 0%, #0c1020 40%, #182038 75%, #243050 100%);
}

.panel--pluto .panel__sky::after {
  background: linear-gradient(to bottom, transparent 0%, rgba(140, 120, 100, 0.35) 100%);
}

.panel--pluto .panel__stars--sparse {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1.5px 1.5px at 20% 25%, rgba(255, 255, 255, 0.9) 50%, transparent 51%),
    radial-gradient(1px 1px at 65% 18%, rgba(255, 255, 255, 0.75) 50%, transparent 51%),
    radial-gradient(1px 1px at 85% 45%, rgba(255, 255, 255, 0.65) 50%, transparent 51%),
    radial-gradient(1px 1px at 40% 60%, rgba(255, 255, 255, 0.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 12% 50%, rgba(255, 255, 255, 0.45) 50%, transparent 51%);
}

.panel--pluto .panel__ground {
  background:
    radial-gradient(ellipse 40% 25% at 28% 22%, #b0a090 0%, transparent 100%),
    radial-gradient(ellipse 32% 20% at 72% 38%, #988878 0%, transparent 100%),
    radial-gradient(ellipse 25% 15% at 50% 12%, rgba(200, 180, 160, 0.3) 0%, transparent 100%),
    linear-gradient(180deg, #d8c8b8 0%, #b0a090 32%, #887868 62%, #585048 100%);
}

/* Mercury */
.panel--mercury .panel__sky {
  background: linear-gradient(180deg, #0a0a10 0%, #1a1820 40%, #2a2830 100%);
}
.panel--mercury .panel__ground {
  background: linear-gradient(180deg, #8a8580 0%, #5a5550 40%, #2e2a28 100%);
}
.panel--mercury .panel__platform {
  background: linear-gradient(180deg, rgba(200, 195, 185, 0.55) 0%, rgba(120, 115, 105, 0.3) 100%);
}

/* Venus */
.panel--venus .panel__sky {
  background: linear-gradient(180deg, #4a3010 0%, #c88840 40%, #e8c878 75%, #f0d890 100%);
}
.panel--venus .panel__ground {
  background: linear-gradient(180deg, #d4a050 0%, #a06828 45%, #5a3810 100%);
}
.panel--venus .panel__platform {
  background: linear-gradient(180deg, rgba(255, 220, 140, 0.55) 0%, rgba(200, 140, 60, 0.3) 100%);
}

/* Jupiter */
.panel--jupiter .panel__sky {
  background: linear-gradient(180deg, #1a1008 0%, #6b4420 30%, #c89058 55%, #e8b878 80%, #f0d0a0 100%);
}
.panel--jupiter .panel__bands {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0 10%,
      rgba(160, 80, 40, 0.18) 10% 14%,
      transparent 14% 22%,
      rgba(220, 180, 120, 0.12) 22% 26%
    );
}
.panel--jupiter .panel__ground {
  background: linear-gradient(180deg, #c87840 0%, #8a4820 40%, #4a2808 100%);
}
.panel--jupiter .panel__platform {
  background: linear-gradient(180deg, rgba(255, 200, 140, 0.5) 0%, rgba(180, 100, 50, 0.28) 100%);
}

/* Saturn */
.panel--saturn .panel__sky {
  background:
    radial-gradient(ellipse 70% 20% at 50% 35%, rgba(220, 200, 140, 0.25) 0%, transparent 70%),
    linear-gradient(180deg, #0c0c14 0%, #2a2418 40%, #5a4a30 75%, #8a7850 100%);
}
.panel--saturn .panel__ground {
  background: linear-gradient(180deg, #c8b888 0%, #908060 40%, #504830 100%);
}
.panel--saturn .panel__platform {
  background: linear-gradient(180deg, rgba(240, 220, 160, 0.55) 0%, rgba(160, 140, 90, 0.3) 100%);
}

/* Uranus */
.panel--uranus .panel__sky {
  background: linear-gradient(180deg, #061820 0%, #0a4050 35%, #40b0c0 70%, #80d8e0 100%);
}
.panel--uranus .panel__ground {
  background: linear-gradient(180deg, #60c0c8 0%, #308890 45%, #184850 100%);
}
.panel--uranus .panel__platform {
  background: linear-gradient(180deg, rgba(160, 240, 250, 0.5) 0%, rgba(60, 160, 180, 0.28) 100%);
}

/* Neptune */
.panel--neptune .panel__sky {
  background: linear-gradient(180deg, #020818 0%, #0a2860 35%, #1a58b0 70%, #3a88e0 100%);
}
.panel--neptune .panel__ground {
  background: linear-gradient(180deg, #2868c0 0%, #184090 45%, #0a1848 100%);
}
.panel--neptune .panel__platform {
  background: linear-gradient(180deg, rgba(120, 180, 255, 0.55) 0%, rgba(40, 100, 200, 0.28) 100%);
}

.platform-edge {
  display: none;
}

/* —— HUD overlay —— */
.panel__hud {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0.85rem 0.75rem 0.75rem;
  min-height: 0;
}

.panel__meta {
  flex-shrink: 0;
  margin-bottom: 0.4rem;
  padding: 0.5rem 0.75rem 0.55rem;
  width: fit-content;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 2px 12px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
}

.panel__meta::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 12px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 40%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  padding: 1px;
  pointer-events: none;
}

.panel--earth .panel__meta {
  background: rgba(20, 40, 25, 0.5);
  border-color: rgba(120, 200, 140, 0.15);
}

.panel--moon .panel__meta {
  background: rgba(15, 15, 25, 0.5);
  border-color: rgba(140, 170, 220, 0.12);
}

.panel--mars .panel__meta {
  background: rgba(35, 18, 12, 0.5);
  border-color: rgba(220, 120, 80, 0.15);
}

.panel--pluto .panel__meta {
  background: rgba(18, 20, 30, 0.5);
  border-color: rgba(160, 180, 220, 0.12);
}

.panel--mercury .panel__meta {
  background: rgba(28, 26, 24, 0.5);
  border-color: rgba(180, 170, 160, 0.12);
}

.panel--venus .panel__meta {
  background: rgba(50, 35, 12, 0.5);
  border-color: rgba(230, 180, 80, 0.15);
}

.panel--jupiter .panel__meta {
  background: rgba(40, 25, 12, 0.5);
  border-color: rgba(220, 150, 80, 0.15);
}

.panel--saturn .panel__meta {
  background: rgba(35, 30, 18, 0.5);
  border-color: rgba(220, 200, 140, 0.14);
}

.panel--uranus .panel__meta {
  background: rgba(10, 35, 40, 0.5);
  border-color: rgba(80, 200, 210, 0.14);
}

.panel--neptune .panel__meta {
  background: rgba(8, 20, 50, 0.5);
  border-color: rgba(80, 140, 230, 0.15);
}

.panel__title {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.15;
  color: #fff;
  text-shadow: 
    0 1px 4px rgba(0, 0, 0, 0.6),
    0 0 16px rgba(255, 255, 255, 0.15);
  text-transform: uppercase;
}

.panel__gravity {
  font-size: 0.66rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 0.2rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  font-weight: 500;
}

.panel__g-value {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
}

/* —— Scene & astronaut —— */
.scene {
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0.75rem;
  min-height: 0;
  padding-bottom: 2px;
  margin-bottom: -0.3rem;
  position: relative;
}

/* —— Jump height meter —— */
.jump-meter {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 30px;
  align-self: stretch;
  max-height: 160px;
}

.jump-meter__title {
  display: none;
}

.jump-meter__scale {
  flex: 1;
  display: flex;
  width: 100%;
  min-height: 100px;
  max-height: 130px;
}

.jump-meter__labels {
  display: none;
}

.jump-meter__track {
  position: relative;
  flex: 1;
  width: 100%;
  border-radius: 7px;
  background: 
    linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.3) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  box-shadow: 
    inset 0 3px 8px rgba(0, 0, 0, 0.4),
    inset 0 -1px 2px rgba(255, 255, 255, 0.05);
}

.jump-meter__track::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 50%,
    rgba(255, 255, 255, 0.03) 100%
  );
  pointer-events: none;
}

.jump-meter__fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0;
  border-radius: 6px;
  background: linear-gradient(
    to top,
    rgba(255, 255, 255, 0.65) 0%,
    rgba(255, 255, 255, 0.85) 50%,
    rgba(255, 255, 255, 0.98) 100%
  ) !important;
  box-shadow: 
    0 0 16px rgba(255, 255, 255, 0.35),
    0 -2px 8px rgba(255, 255, 255, 0.4) inset !important;
  transition: height 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.jump-meter__fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
  border-radius: 2px;
}

.jump-meter__cap {
  display: none;
}

.jump-meter__value {
  margin-top: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.64rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.jump-meter__note {
  display: none;
}

.astronaut-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 200px;
  z-index: 1;
}

.astronaut {
  width: clamp(52px, 7vw, 88px);
  height: auto;
  display: block;
  will-change: transform;
  user-select: none;
  -webkit-user-drag: none;
  filter: 
    drop-shadow(0 12px 24px rgba(0, 0, 0, 0.5))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.panel--earth .astronaut {
  filter: 
    drop-shadow(0 12px 24px rgba(0, 0, 0, 0.5))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3))
    drop-shadow(0 0 20px rgba(120, 200, 140, 0.08));
}

.panel--moon .astronaut {
  filter: 
    drop-shadow(0 12px 24px rgba(0, 0, 0, 0.6))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4))
    drop-shadow(0 0 20px rgba(100, 170, 240, 0.12));
}

.panel--mars .astronaut {
  filter: 
    drop-shadow(0 12px 24px rgba(0, 0, 0, 0.5))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3))
    drop-shadow(0 0 20px rgba(220, 120, 80, 0.1));
}

.panel--pluto .astronaut {
  filter: 
    drop-shadow(0 12px 24px rgba(0, 0, 0, 0.6))
    drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4))
    drop-shadow(0 0 20px rgba(160, 180, 220, 0.08));
}

.shadow {
  width: 62%;
  max-width: 88px;
  height: 18px;
  margin-top: 4px;
  background: radial-gradient(ellipse, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 40%, transparent 75%);
  transform-origin: center;
  will-change: transform, opacity;
  filter: blur(3px);
}

/* —— CSS-variable-driven universal hop animation —— */

/* Default hop heights per world (updated by JS each time a jump is captured) */
.panel[data-body="mercury"] { --hop-px: 70px;  --hop-duration: 1.7s;  --shadow-min-scale: 0.48; --shadow-opacity: 0.48; }
.panel[data-body="venus"]   { --hop-px: 36px;  --hop-duration: 0.7s;  --shadow-min-scale: 0.7;  --shadow-opacity: 0.52; }
.panel[data-body="earth"]   { --hop-px: 32px;  --hop-duration: 0.64s; --shadow-min-scale: 0.75; --shadow-opacity: 0.55; }
.panel[data-body="moon"]    { --hop-px: 160px; --hop-duration: 3.85s; --shadow-min-scale: 0.24; --shadow-opacity: 0.4;  }
.panel[data-body="mars"]    { --hop-px: 72px;  --hop-duration: 1.67s; --shadow-min-scale: 0.48; --shadow-opacity: 0.48; }
.panel[data-body="jupiter"] { --hop-px: 18px;  --hop-duration: 0.4s;  --shadow-min-scale: 0.9;  --shadow-opacity: 0.6;  }
.panel[data-body="saturn"]  { --hop-px: 30px;  --hop-duration: 0.62s; --shadow-min-scale: 0.78; --shadow-opacity: 0.55; }
.panel[data-body="uranus"]  { --hop-px: 36px;  --hop-duration: 0.71s; --shadow-min-scale: 0.72; --shadow-opacity: 0.52; }
.panel[data-body="neptune"] { --hop-px: 28px;  --hop-duration: 0.58s; --shadow-min-scale: 0.8;  --shadow-opacity: 0.55; }
.panel[data-body="pluto"]   { --hop-px: 260px; --hop-duration: 6s;    --shadow-min-scale: 0.12; --shadow-opacity: 0.35; }

/* Astronaut sits idle on the ground by default */
.panel[data-body] .astronaut,
.panel[data-body] .shadow {
  animation: none;
}

/* Triggered once per detected jump */
.panel[data-body] .astronaut.is-hopping {
  animation: hop-universal var(--hop-duration) cubic-bezier(0.33, 0, 0.5, 1) 1 normal both;
}

.panel[data-body] .shadow.is-hopping {
  animation: shadow-universal var(--hop-duration) cubic-bezier(0.33, 0, 0.5, 1) 1 normal both;
}

@keyframes hop-universal {
  0%, 100% { transform: translateY(0) scaleY(1); }
  8%  { transform: translateY(calc(var(--hop-px) * -0.06)) scaleY(1.035);
        animation-timing-function: var(--ease-jump); }
  48% { transform: translateY(calc(-1 * var(--hop-px))) scaleY(0.95);
        animation-timing-function: ease-out; }
  58% { transform: translateY(calc(-1 * var(--hop-px)));
        animation-timing-function: var(--ease-land); }
  90% { transform: translateY(calc(var(--hop-px) * -0.05)) scaleY(1.02); }
}

@keyframes shadow-universal {
  0%, 100% { transform: scale(1); opacity: var(--shadow-opacity); }
  48%, 58% { transform: scale(var(--shadow-min-scale));
             opacity: calc(var(--shadow-opacity) * 0.2); }
}

/* —— Stats card —— */
.stats-card {
  flex-shrink: 0;
  margin-top: auto;
  padding: 1rem 1.1rem 0.95rem;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
  box-shadow: 
    0 -8px 32px rgba(0, 0, 0, 0.4),
    0 -2px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
}

.stats-card--gravity {
  grid-template-columns: 1fr;
}

.stats-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 15px;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.15) 0%,
    transparent 30%,
    transparent 70%,
    rgba(255, 255, 255, 0.08) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.panel--earth .stats-card {
  background: 
    radial-gradient(ellipse 200% 100% at 50% 120%, rgba(80, 180, 100, 0.12) 0%, transparent 60%),
    rgba(12, 28, 16, 0.85);
  border-color: rgba(120, 200, 140, 0.18);
  box-shadow: 
    0 -8px 32px rgba(40, 120, 60, 0.15),
    0 -2px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(120, 200, 140, 0.12);
}

.panel--moon .stats-card {
  background: 
    radial-gradient(ellipse 200% 100% at 50% 120%, rgba(100, 140, 200, 0.1) 0%, transparent 60%),
    rgba(14, 14, 22, 0.88);
  border-color: rgba(140, 170, 220, 0.15);
  box-shadow: 
    0 -8px 32px rgba(80, 120, 180, 0.12),
    0 -2px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(140, 170, 220, 0.1);
}

.panel--mars .stats-card {
  background: 
    radial-gradient(ellipse 200% 100% at 50% 120%, rgba(220, 100, 50, 0.12) 0%, transparent 60%),
    rgba(32, 14, 8, 0.88);
  border-color: rgba(220, 120, 80, 0.18);
  box-shadow: 
    0 -8px 32px rgba(180, 80, 40, 0.15),
    0 -2px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(220, 120, 80, 0.12);
}

.panel--pluto .stats-card {
  background: 
    radial-gradient(ellipse 200% 100% at 50% 120%, rgba(140, 160, 200, 0.1) 0%, transparent 60%),
    rgba(16, 18, 28, 0.88);
  border-color: rgba(160, 180, 220, 0.14);
  box-shadow: 
    0 -8px 32px rgba(100, 120, 160, 0.12),
    0 -2px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(160, 180, 220, 0.1);
}

.stat__label {
  display: block;
  font-size: 0.56rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.42);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.stat__row {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-top: 0.3rem;
}

.stat__value {
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  line-height: 1;
  color: #fff;
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(255, 255, 255, 0.1);
}

.panel--earth .stat__value {
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(120, 200, 140, 0.2);
}

.panel--moon .stat__value {
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(140, 170, 220, 0.18);
}

.panel--mars .stat__value {
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(220, 120, 80, 0.2);
}

.panel--pluto .stat__value {
  text-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(160, 180, 220, 0.18);
}

.stat__unit {
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.01em;
}

.stat__compare {
  grid-column: 1 / -1;
  display: block;
  font-size: 0.64rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 0.25rem;
  line-height: 1.35;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-style: italic;
  letter-spacing: 0.01em;
}

/* —— Modal —— */
.modal {
  border: none;
  padding: 0;
  background: transparent;
  max-width: 92vw;
  margin: auto;
}

.modal[open] {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal::backdrop {
  background: rgba(2, 2, 8, 0.78);
  backdrop-filter: blur(10px);
}

.modal__form {
  background: rgba(12, 14, 22, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 2rem 2rem 1.75rem;
  width: min(420px, 92vw);
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.65);
}

.modal__eyebrow {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
  margin-bottom: 0.5rem;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.modal__form--weight {
  padding: 1.75rem 1.75rem 1.5rem;
}

.modal__hint {
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.52);
  line-height: 1.6;
  margin-bottom: 1.35rem;
}

.modal__modes {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.modal__mode-btn {
  position: relative;
  flex: 1;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.6rem 0.75rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.25);
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.modal__mode-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  color: rgba(255, 255, 255, 0.35);
}

.modal__mode-badge {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.modal__mode-btn--active {
  background: rgba(126, 200, 255, 0.15);
  border-color: rgba(126, 200, 255, 0.4);
  color: #7ec8ff;
}

.modal__manual-panel,
#modalManualPanel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal__label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 0.15rem;
}

.modal__input-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.15rem 0.15rem 0.15rem 0;
}

.modal__input {
  flex: 1;
  min-width: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.modal__input::placeholder {
  color: rgba(255, 255, 255, 0.22);
}

.modal__input:focus {
  border-color: rgba(126, 200, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(126, 200, 255, 0.12);
  background: rgba(0, 0, 0, 0.45);
}

.modal__suffix--input {
  font-size: 1.1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  flex-shrink: 0;
}

.modal__range-hint {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.35);
  margin: 0 0 0.25rem;
}

.modal__error {
  font-size: 0.75rem;
  color: #f08080;
  margin: 0;
}

.modal__live-kg {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin: 0.5rem 0;
  font-variant-numeric: tabular-nums;
}

.modal__scale-hint {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.btn-secondary {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.modal__suffix {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
}

.btn-primary {
  width: 100%;
  margin-top: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.9rem 1.25rem;
  border: none;
  border-radius: 10px;
  background: #fff;
  color: #0a0c12;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.12);
  background: #f0f2f6;
}

/* —— Responsive: always 5 columns × 2 rows (5 / 5) —— */

@media (max-width: 1600px) {
  .panels {
    gap: 0.35rem;
    padding: 0.4rem 0.5rem 0.5rem;
  }

  .panel__title {
    font-size: 0.7rem;
    letter-spacing: 0.04em;
  }

  .astronaut {
    width: clamp(40px, 5vw, 68px);
  }
}

@media (max-width: 1280px) {
  .panels {
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 0.3rem;
    padding: 0.35rem 0.4rem 0.4rem;
    overflow: hidden;
  }

  .panel {
    min-height: 0;
  }

  .panel__hud {
    padding: 0.4rem 0.35rem 0.35rem;
  }

  .panel__meta {
    padding: 0.25rem 0.4rem;
  }

  .panel__title {
    font-size: 0.62rem;
  }

  .panel__gravity {
    font-size: 0.52rem;
  }

  .jump-meter {
    width: 16px;
    max-height: 90px;
  }

  .jump-meter__scale {
    min-height: 55px;
    max-height: 80px;
  }

  .astronaut {
    width: clamp(32px, 4.5vw, 56px);
  }

  .stats-card {
    padding: 0.3rem 0.4rem;
  }

  .stat__value {
    font-size: 0.85rem;
  }

  .stat__compare {
    font-size: 0.5rem;
  }
}

@media (max-width: 1024px) {
  .header {
    padding: 0.55rem 0.75rem 0.45rem;
  }

  .header__title {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
  }

  .camera-bar {
    padding: 0.35rem 0.65rem;
  }

  .camera-pip {
    max-width: 100%;
  }

  .panels {
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 0.28rem;
    padding: 0.3rem;
    overflow: hidden;
  }

  .panel__title {
    font-size: 0.55rem;
    letter-spacing: 0.03em;
  }

  .panel__gravity {
    display: none;
  }

  .jump-meter {
    width: 14px;
    max-height: 70px;
  }

  .jump-meter__value {
    font-size: 0.48rem;
  }

  .astronaut {
    width: clamp(28px, 4vw, 48px);
  }

  .stat__label,
  .stat__unit {
    font-size: 0.45rem;
  }

  .stat__value {
    font-size: 0.72rem;
  }

  .stat__compare {
    font-size: 0.45rem;
  }
}

@media (max-width: 768px) {
  html,
  body {
    height: 100%;
    min-height: 100dvh;
    overflow: hidden;
  }

  .header {
    position: relative;
    padding:
      calc(0.4rem + env(safe-area-inset-top, 0))
      calc(0.5rem + env(safe-area-inset-right, 0))
      0.35rem
      calc(0.5rem + env(safe-area-inset-left, 0));
  }

  .header__title {
    font-size: 0.62rem;
    letter-spacing: 0.08em;
  }

  .header__icon-btn {
    width: 36px;
    height: 36px;
  }

  .display-phase {
    font-size: 0.58rem;
    max-width: 24vw;
  }

  .camera-bar {
    position: relative;
    top: auto;
    padding:
      0.3rem
      calc(0.4rem + env(safe-area-inset-right, 0))
      0.3rem
      calc(0.4rem + env(safe-area-inset-left, 0));
  }

  .camera-pip {
    flex-wrap: nowrap;
    max-width: 100%;
    min-height: 48px;
  }

  .camera-pip__media {
    width: 64px;
  }

  .camera-pip__phase {
    font-size: 0.68rem;
  }

  .camera-pip__links {
    display: none;
  }

  .panels {
    flex: 1;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 0.22rem;
    min-height: 0;
    padding:
      0.25rem
      calc(0.3rem + env(safe-area-inset-right, 0))
      calc(0.35rem + env(safe-area-inset-bottom, 0))
      calc(0.3rem + env(safe-area-inset-left, 0));
    overflow: hidden;
  }

  .panel {
    min-height: 0;
    border-radius: 8px;
  }

  .panel:hover {
    transform: none;
  }

  .panel__hud {
    padding: 0.25rem 0.2rem 0.2rem;
  }

  .panel__meta {
    padding: 0.15rem 0.25rem;
    margin-bottom: 0.1rem;
    border-radius: 6px;
  }

  .panel__title {
    font-size: 0.48rem;
    letter-spacing: 0.02em;
  }

  .scene {
    gap: 0.15rem;
  }

  .jump-meter {
    width: 10px;
    max-height: 55px;
  }

  .jump-meter__scale {
    min-height: 36px;
    max-height: 50px;
  }

  .jump-meter__value {
    font-size: 0.4rem;
    margin-top: 0.15rem;
  }

  .astronaut-wrap {
    max-width: 70px;
  }

  .astronaut {
    width: clamp(22px, 5.5vw, 40px);
  }

  .stats-card {
    padding: 0.2rem 0.25rem;
    gap: 0.1rem;
  }

  .stat__label,
  .stat__unit,
  .stat__compare {
    font-size: 0.38rem;
  }

  .stat__value {
    font-size: 0.58rem;
  }

  .panel[data-body="moon"]    { --hop-px: 72px; }
  .panel[data-body="mercury"] { --hop-px: 40px; }
  .panel[data-body="mars"]    { --hop-px: 40px; }
  .panel[data-body="pluto"]   { --hop-px: 110px; }
  .panel[data-body="jupiter"] { --hop-px: 14px; }

  .modal[open] {
    align-items: flex-end;
    padding: 0;
  }

  .modal__form {
    width: 100%;
    max-width: none;
    border-radius: 20px 20px 0 0;
    max-height: 92dvh;
    overflow-y: auto;
  }

  .modal__form--about {
    border-radius: 20px 20px 0 0;
    padding:
      1.25rem
      calc(1rem + env(safe-area-inset-right, 0))
      calc(1.25rem + env(safe-area-inset-bottom, 0))
      calc(1rem + env(safe-area-inset-left, 0));
  }

  body.role-camera .camera-bar {
    position: relative;
    top: auto;
    flex: 1;
    min-height: calc(100dvh - 48px);
    padding: 0.75rem;
  }

  body.role-camera .camera-pip__media {
    width: 100%;
    max-height: min(55dvh, 420px);
  }

  body.role-camera .panels {
    display: none;
  }
}

@media (max-width: 420px) {
  .header__title {
    font-size: 0.55rem;
  }

  .camera-pip__media {
    width: 56px;
  }

  .panel__title {
    font-size: 0.42rem;
  }

  .astronaut {
    width: clamp(18px, 5vw, 32px);
  }

  .stats-card .stat__compare {
    display: none;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  .header {
    padding: 0.3rem 0.6rem;
  }

  .camera-bar {
    padding: 0.25rem 0.45rem;
  }

  .camera-pip__media {
    width: 56px;
  }

  .panels {
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 0.22rem;
    padding: 0.25rem 0.35rem;
  }

  .panel__gravity {
    display: none;
  }

  .astronaut {
    width: clamp(22px, 7vh, 40px);
  }

  .panel[data-body="moon"]  { --hop-px: 56px; }
  .panel[data-body="pluto"] { --hop-px: 85px; }
}

@media (hover: none) {
  .panel:hover {
    transform: none;
    box-shadow:
      0 6px 28px rgba(0, 0, 0, 0.5),
      0 2px 12px rgba(0, 0, 0, 0.35),
      inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }

  .panel--earth:hover,
  .panel--moon:hover,
  .panel--mars:hover,
  .panel--pluto:hover {
    box-shadow:
      0 6px 28px rgba(0, 0, 0, 0.5),
      0 2px 12px rgba(0, 0, 0, 0.35),
      inset 0 1px 0 rgba(255, 255, 255, 0.05);
  }

  .header__icon-btn:hover {
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .astronaut,
  .shadow,
  .panel__clouds,
  .panel__earth-distant,
  .jump-meter__fill,
  .jump-meter__cap,
  .panel {
    animation: none !important;
    transition: none !important;
  }
}

/* ─────────────────────────────────────────────────────────────────
   Camera bar (inline below header)
   ───────────────────────────────────────────────────────────────── */

.camera-bar {
  flex-shrink: 0;
  z-index: 20;
  padding: 0.5rem 1.25rem;
  background: rgba(10, 10, 20, 0.82);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  justify-content: center;
}

.camera-pip {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 520px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  background: #0c0c12;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  min-height: 72px;
}

.camera-pip__header {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  flex: 1;
  min-width: 0;
  padding: 0.5rem 0.75rem;
  background: rgba(0, 0, 0, 0.35);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.camera-pip__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.camera-pip__phase {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(126, 200, 255, 0.85);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.camera-pip__phase--ready {
  color: #9de0ff;
  animation: pip-pulse 0.6s ease infinite alternate;
}

.camera-pip__phase--jumping {
  color: #ffb450;
  animation: pip-pulse 0.25s ease infinite alternate;
}

@keyframes pip-pulse {
  from { opacity: 0.7; }
  to   { opacity: 1; }
}

.camera-pip__media {
  position: relative;
  flex-shrink: 0;
  width: 96px;
  aspect-ratio: 4 / 3;
  background: #111;
}

.camera-pip__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  display: block;
}

.camera-pip__canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
  pointer-events: none;
}

.camera-pip__overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.camera-pip__overlay--off {
  display: none !important;
}

.camera-pip__enable {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(126, 200, 255, 0.4);
  background: rgba(126, 200, 255, 0.15);
  color: #9de0ff;
  transition: background 0.15s, border-color 0.15s;
}

.camera-pip__enable:hover {
  background: rgba(126, 200, 255, 0.25);
  border-color: rgba(126, 200, 255, 0.6);
}

.camera-pip__error {
  margin: 0;
  font-size: 0.68rem;
  color: #ff8585;
  text-align: center;
  line-height: 1.4;
}

.camera-pip__footer {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  background: rgba(0, 0, 0, 0.35);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}

.camera-pip__retry {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.camera-pip__retry:hover {
  background: rgba(126, 200, 255, 0.12);
  color: #9de0ff;
  border-color: rgba(126, 200, 255, 0.3);
}

.camera-pip__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.75rem;
  margin-top: 0.25rem;
}

.camera-pip__link {
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(126, 200, 255, 0.75);
  text-decoration: none;
}

.camera-pip__link:hover {
  color: #9de0ff;
  text-decoration: underline;
}

.about-exhibit {
  margin: 0.85rem 0 0;
  font-size: 0.85rem;
}

/* —— Dual-window roles —— */
body.role-display .camera-bar {
  display: none;
}

body.role-display .display-phase,
body.role-display .sync-status {
  display: block;
}

body.role-display .header__actions .sync-status {
  display: inline;
}

body.role-display .panels {
  padding-top: 0.85rem;
}

body.role-camera .panels {
  display: none;
}

body.role-camera .sync-status {
  display: inline;
}

body.role-camera .camera-bar {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  border-bottom: none;
  min-height: 0;
}

body.role-camera .camera-pip {
  max-width: min(720px, 96vw);
  flex-direction: column;
  min-height: 0;
}

body.role-camera .camera-pip__header {
  border-right: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.85rem 1rem;
}

body.role-camera .camera-pip__media {
  width: 100%;
  aspect-ratio: 4 / 3;
  max-height: min(62vh, 480px);
}

body.role-camera .camera-pip__footer {
  border-left: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.5rem;
  justify-content: flex-end;
}

body.role-camera #openCameraBtn,
body.role-display #openDisplayBtn {
  display: none;
}

/* Camera / panel overrides must come after base camera-bar rules */
@media (max-width: 1024px) {
  .camera-bar {
    padding: 0.45rem 0.85rem;
  }

  .camera-pip {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .camera-bar {
    position: sticky;
    top: 48px;
    z-index: 19;
    padding:
      0.4rem
      calc(0.65rem + env(safe-area-inset-right, 0))
      0.4rem
      calc(0.65rem + env(safe-area-inset-left, 0));
  }

  .camera-pip {
    flex-wrap: wrap;
    max-width: 100%;
  }

  .camera-pip__media {
    width: 96px;
  }

  .camera-pip__phase {
    font-size: 0.78rem;
  }

  body.role-camera .camera-bar {
    position: relative;
    top: auto;
  }

  body.role-camera .camera-pip__media {
    width: 100%;
    max-height: min(55dvh, 420px);
  }
}

@media (max-width: 420px) {
  .camera-pip__media {
    width: 72px;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  .camera-bar {
    position: relative;
    top: auto;
    padding: 0.3rem 0.55rem;
  }

  .camera-pip__media {
    width: 64px;
  }

  body.role-camera .camera-pip__media {
    width: 100%;
    max-height: min(70dvh, 360px);
  }
}