:root {
  color-scheme: dark;
  --bg: #02010f;
  --panel: rgba(0, 0, 0, 0.78);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-highlight: rgba(96, 165, 250, 0.45);
  --text: rgba(255, 255, 255, 0.92);
  --text-dim: rgba(255, 255, 255, 0.56);
  --accent: linear-gradient(135deg, #60a5fa, #c084fc, #f472b6);
  --danger: #ef4444;
  --success: #22c55e;
  --header-top-offset: -3.8rem;
  --header-padding-top: 0.35rem;
  --header-padding-bottom: 0.25rem;
  --header-logo-height: 3.25rem;
  --header-bottom-trim: 1rem;
  --header-animation-gap: clamp(0rem, 0.35vw, 0.18rem);
  --animation-top-offset: calc(
    var(--header-top-offset) +
    var(--header-padding-top) +
    var(--header-logo-height) +
    var(--header-padding-bottom) +
    var(--header-animation-gap) -
    var(--header-bottom-trim)
  );
  font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --motion-multiplier: 1;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --motion-multiplier: 0;
  }
}

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

body {
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(96, 165, 250, 0.15), transparent 55%),
              var(--bg);
  color: var(--text);
  overflow: hidden;
}

body.page-auth,
body.page-trending,
body.page-admin {
  overflow-y: auto;
}

#spaceCanvas {
  position: fixed;
  top: var(--header-top-offset);
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  display: block;
  pointer-events: auto;
  z-index: 0;
}

body.minimal-ui #spaceCanvas {
  top: var(--animation-top-offset);
  bottom: 0;
}

.ui-layer {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.ui-layer > * {
  pointer-events: auto;
}

.header {
  position: fixed;
  top: var(--header-top-offset);
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--header-padding-top) 2.6rem var(--header-padding-bottom);
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.58) 0%,
    rgba(0, 0, 0, 0.22) 60%,
    rgba(0, 0, 0, 0) 100%
  );
  z-index: 12;
}

.page-auth .header,
.page-trending .header,
.page-admin .header {
  background: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.page-auth .header,
.page-trending .header {
  top: 0;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  height: 3.4rem;
}

.logo img {
  height: 100%;
  width: auto;
  display: block;
}

.nav-left {
  --nav-left-gap: clamp(0.45rem, 0.9vw, 0.7rem);
  display: flex;
  align-items: center;
  gap: var(--nav-left-gap);
}

.nav-cluster {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.3rem, 0.6vw, 0.55rem);
}

.nav-actions {
  display: flex;
  gap: 1rem;
}

.nav-btn {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}


.nav-btn.image-btn {
  --nav-art-scale: 1;
  --nav-art-height: calc(1.6rem * var(--nav-art-scale));
  --image-aspect: 1;
  padding: 0;
  gap: 0;
  border: none;
  background: none;
  height: var(--nav-art-height);
  aspect-ratio: var(--image-aspect);
  border-radius: 999px;
}

.nav-btn.image-btn img {
  width: 100%;
  height: 100%;
  max-width: none;
  display: block;
  object-fit: contain;
}

.nav-btn.image-btn[data-action="random-constellation"] {
  --nav-art-scale: 8;
  --image-aspect: 1;
}

.nav-btn.image-btn:focus-visible {
  outline: 2px solid rgba(96, 165, 250, 0.7);
  outline-offset: 4px;
}

.nav-btn.icon-only {
  border: none;
  background: transparent;
  padding: 0;
  width: 2.8rem;
  height: 2.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0;
}

.nav-btn.icon-only img {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-btn.icon-only:focus-visible {
  outline: 2px solid rgba(96, 165, 250, 0.7);
  outline-offset: 4px;
  border-radius: 999px;
}

.nav-btn:hover,
.nav-btn:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.3);
}

.nav-btn.trends {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding-inline: 1.2rem 1.5rem;
}

.nav-btn.trends img {
  width: 1.6rem;
  height: 1.6rem;
  display: block;
}

.nav-btn[aria-current="page"] {
  pointer-events: none;
  opacity: 0.85;
}

.control-panel {
  position: fixed;
  inset: auto 3rem 1.8rem 3rem;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  pointer-events: none;
}

.control-panel > * {
  pointer-events: auto;
}

.time-navigator,
.chain-filter {
  display: flex;
  gap: 0.25rem;
  background: rgba(5, 5, 25, 0.82);
  border-radius: 999px;
  padding: 0.25rem;
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(18px);
}

.time-btn,
.chain-btn {
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, color 0.2s ease;
}

.chain-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.time-btn.active,
.chain-btn.active {
  background: rgba(96, 165, 250, 0.16);
  color: var(--text);
}

.chain-btn .chain-logo {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  object-fit: contain;
  filter: drop-shadow(0 0 6px rgba(96, 165, 250, 0.45));
}

.chain-btn .chain-label {
  white-space: nowrap;
}

.zoom-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(5, 5, 25, 0.82);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(18px);
  color: var(--text-dim);
}

.zoom-control input[type="range"] {
  accent-color: #60a5fa;
}

.constellation-info {
  position: fixed;
  inset: 50% auto auto 3rem;
  transform: translateY(-50%);
  background: var(--panel);
  border-radius: 26px;
  padding: 1.8rem;
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(28px);
  max-width: 280px;
  display: grid;
  gap: 1rem;
}

.constellation-name {
  font-size: 1.3rem;
  font-weight: 600;
}

.constellation-stats {
  display: grid;
  gap: 0.6rem;
  font-size: 0.9rem;
}

.stat-value {
  font-weight: 600;
  color: #fff;
}

.sentiment-panel {
  position: fixed;
  inset: 6.5rem 3rem 7.5rem auto;
  transform: none;
  width: min(420px, 40vw);
  background: var(--panel);
  border-radius: 28px;
  border: 1px solid var(--panel-border);
  overflow: hidden;
  backdrop-filter: blur(38px);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 15rem);
}

.panel-header {
  padding: 1.75rem;
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.panel-title {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.panel-main-title {
  font-size: 1.6rem;
  font-weight: 700;
}

.tier-toggle {
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tier-switch {
  border: 1px solid rgba(96, 165, 250, 0.5);
  background: rgba(96, 165, 250, 0.12);
  color: #e0f2fe;
  border-radius: 999px;
  padding: 0.35rem 0.95rem;
  cursor: pointer;
  font-weight: 600;
}

.panel-toolbar {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 0.9rem 1.5rem;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.panel-zoom {
  display: flex;
  gap: 0.4rem;
}

.performance-toggle {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.78);
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  overflow: hidden;
}

.performance-btn {
  border: none;
  background: transparent;
  color: var(--text-dim);
  padding: 0.45rem 1rem;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, color 0.2s ease;
}

.performance-btn.active,
.performance-btn:focus-visible {
  background: rgba(96, 165, 250, 0.2);
  color: var(--text);
}

.performance-btn + .performance-btn {
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-zoom-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

.sentiment-grid {
  flex: 1;
  overflow-y: auto;
  padding: 1.4rem;
  display: grid;
  gap: 0.75rem;
  transform-origin: top left;
  scroll-behavior: smooth;
}

.coin-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  padding: 1rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.coin-item:hover,
.coin-item:focus-visible {
  border-color: rgba(96, 165, 250, 0.45);
  transform: translateX(6px);
}

.coin-info {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.coin-logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  padding: 0.45rem;
  background: rgba(96, 165, 250, 0.08);
  display: grid;
  place-items: center;
}

.coin-logo img {
  max-width: 100%;
  max-height: 100%;
}

.coin-name {
  font-weight: 600;
  font-size: 1rem;
}

.coin-symbol {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.coin-volume {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.58);
  margin-top: 0.25rem;
}

.coin-score {
  text-align: right;
  display: grid;
  gap: 0.2rem;
}

.score-value {
  font-size: 1.7rem;
  font-weight: 700;
}

.score-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.status-positive {
  color: var(--success);
}

.status-negative {
  color: var(--danger);
}

#coinDialog {
  border: none;
  padding: 0;
  background: transparent;
  color: inherit;
}

#coinDialog[open] {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
}

#coinDialog::backdrop {
  background: rgba(1, 4, 25, 0.72);
  backdrop-filter: blur(2px);
}

#coinDialog article {
  width: min(480px, 90vw);
  background: rgba(4, 7, 25, 0.95);
  border-radius: 24px;
  border: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#coinDialog header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 1.75rem;
  border-bottom: 1px solid var(--panel-border);
}

#dialogClose {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.app-dialog {
  border: none;
  border-radius: 24px;
  padding: 0;
  background: transparent;
  color: inherit;
}

.app-dialog[open] {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
}

.app-dialog::backdrop {
  background: rgba(1, 4, 25, 0.72);
  backdrop-filter: blur(2px);
}

.app-dialog article {
  width: min(420px, 90vw);
  background: rgba(4, 7, 25, 0.95);
  border-radius: 24px;
  border: 1px solid var(--panel-border);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  padding: 1.8rem;
  display: grid;
  gap: 1.4rem;
}

.app-dialog header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.dialog-close {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.app-dialog__body {
  display: grid;
  gap: 0.7rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
}

.app-dialog footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.dialog-button {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

.dialog-button--accent {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
}

.dialog-content {
  padding: 1.8rem;
  display: grid;
  gap: 1rem;
}

.vote-stats {
  padding: 1.2rem 1.75rem;
  border-top: 1px solid var(--panel-border);
  background: rgba(15, 23, 42, 0.65);
  display: grid;
  gap: 0.8rem;
}

.vote-stats__row {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.vote-stats__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.vote-stats__value {
  font-size: 1.25rem;
  font-weight: 600;
}

.vote-stats__meta {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.vote-stats__empty {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.dialog-footer {
  padding: 1.4rem 1.75rem;
  border-top: 1px solid var(--panel-border);
  background: rgba(15, 23, 42, 0.75);
}

#sentimentVoteForm {
  display: grid;
  gap: 0.9rem;
}

#sentimentVoteForm button {
  justify-self: end;
  border-radius: 999px;
  background: var(--accent);
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  cursor: pointer;
}

.toast {
  position: fixed;
  inset: auto auto 2rem 50%;
  transform: translateX(-50%);
  background: rgba(13, 19, 41, 0.95);
  padding: 0.85rem 1.4rem;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  font-size: 0.9rem;
  display: none;
}

.toast.show {
  display: inline-flex;
}

body.minimal-ui .control-panel,
body.minimal-ui .constellation-info,
body.minimal-ui .sentiment-panel {
  display: none;
}

body.minimal-ui .nav-actions {
  display: none;
}

body.minimal-ui .nav-left {
  display: flex;
}

body.minimal-ui .nav-left .nav-btn {
  display: inline-flex;
}

body.minimal-ui .header {
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.42) 0%,
    rgba(0, 0, 0, 0.18) 55%,
    rgba(0, 0, 0, 0) 100%
  );
}

body.minimal-ui::before {
  opacity: 0.75;
}

body.minimal-ui [data-action="random-constellation"] {
  display: none;
}

body.minimal-ui .logo,
body.minimal-ui #focusToggle,
body.minimal-ui #resumeSpin {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1200px) {
  .constellation-info {
    display: none;
  }
}

@media (max-width: 1024px) {
  :root {
    --header-top-offset: -3.2rem;
    --header-padding-top: 0.4rem;
    --header-padding-bottom: 0.35rem;
    --header-bottom-trim: 0.85rem;
    --header-animation-gap: clamp(0rem, 1vw, 0.35rem);
  }

  .header {
    padding-inline: 1.2rem;
    flex-direction: column;
    gap: 0.9rem;
  }

  .nav-left,
  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .control-panel {
    flex-direction: column;
    gap: 1rem;
  }

  .sentiment-panel {
    inset: auto 1.5rem 2rem 1.5rem;
    transform: none;
    width: auto;
    max-height: 60vh;
  }
}