:root {
  color-scheme: dark;
  --bg: #061019;
  --bg-alt: #0d1b27;
  --surface: rgba(10, 20, 30, 0.76);
  --surface-strong: rgba(12, 25, 38, 0.92);
  --surface-border: rgba(255, 255, 255, 0.1);
  --text: #edf5fa;
  --muted: #90a9bb;
  --accent: #7ce0cf;
  --accent-strong: #ff8f59;
  --success: #76f2b3;
  --warning: #ffc56f;
  --danger: #ff7b72;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --heading-font: "Avenir Next Condensed", "Arial Narrow", "Franklin Gothic Medium", sans-serif;
  --body-font: "Avenir Next", "Segoe UI Variable Text", "Segoe UI", sans-serif;
  --device-accent: #7ce0cf;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(circle at top left, rgba(124, 224, 207, 0.18), transparent 28%),
    radial-gradient(circle at 82% 8%, rgba(255, 143, 89, 0.16), transparent 26%),
    linear-gradient(160deg, var(--bg) 0%, #08131d 42%, var(--bg-alt) 100%);
  color: var(--text);
  font-family: var(--body-font);
  line-height: 1.45;
  padding: clamp(1rem, 2vw, 2rem);
}

button,
input,
select {
  font: inherit;
}

a {
  color: inherit;
}

.app-background {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(22px);
  opacity: 0.75;
  animation: drift 16s ease-in-out infinite;
}

.glow-left {
  top: -10rem;
  left: -8rem;
  width: 28rem;
  height: 28rem;
  background: radial-gradient(circle, rgba(124, 224, 207, 0.26), transparent 70%);
}

.glow-right {
  right: -10rem;
  bottom: -8rem;
  width: 34rem;
  height: 34rem;
  background: radial-gradient(circle, rgba(255, 143, 89, 0.22), transparent 68%);
  animation-delay: -6s;
}

.mesh {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.9), transparent 92%);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.25rem;
  max-width: 1360px;
  margin: 0 auto;
}

.surface {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)), var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
  animation: rise 0.75s ease both;
}

.surface::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent 42%);
  pointer-events: none;
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 3.2vw, 2.6rem);
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -15% -45% 35%;
  height: 70%;
  background: radial-gradient(circle, rgba(124, 224, 207, 0.16), transparent 70%);
  pointer-events: none;
}

.hero-copy,
.hero-actions,
.sidebar-panel,
.editor-panel,
.loader-panel,
.diagnostics-panel {
  position: relative;
  z-index: 1;
}

.eyebrow,
.panel-label,
.meta-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero-panel h1,
.editor-header h2,
.loader-panel h2,
.updater-panel h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.01em;
}

.hero-panel h1 {
  max-width: 11ch;
  font-size: clamp(3rem, 7vw, 5.4rem);
}

.hero-text {
  margin: 1rem 0 0;
  max-width: 42ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1rem;
  align-items: center;
  margin-top: 1.5rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.25rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.status-indicator {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: var(--warning);
  box-shadow: 0 0 0 0 rgba(255, 197, 111, 0.35);
}

body[data-connection="idle"] .status-indicator {
  background: var(--warning);
}

body[data-connection="connecting"] .status-indicator {
  background: var(--accent-strong);
  animation: pulse 1.8s ease infinite;
}

body[data-connection="connected"] .status-indicator {
  background: var(--success);
  box-shadow: 0 0 18px rgba(118, 242, 179, 0.6);
}

body[data-connection="error"] .status-indicator {
  background: var(--danger);
  box-shadow: 0 0 18px rgba(255, 123, 114, 0.45);
}

.inline-link {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  transition: color 160ms ease, border-color 160ms ease;
}

.inline-link:hover {
  color: var(--accent);
  border-color: rgba(124, 224, 207, 0.5);
}

.hero-actions {
  display: grid;
  align-content: start;
  gap: 0.9rem;
}

.button-stack {
  display: grid;
  gap: 0.75rem;
}

.support-copy,
.muted-copy {
  margin: 0;
  color: var(--muted);
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.3rem;
  color: var(--text);
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    opacity 180ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-strong), #ffb56d);
  box-shadow: 0 16px 36px rgba(255, 143, 89, 0.28);
  color: #1e1208;
  font-weight: 700;
}

.button-secondary,
.button-ghost,
.button-nav {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.button-secondary:hover:not(:disabled),
.button-ghost:hover:not(:disabled),
.button-nav:hover:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.button-compact {
  padding: 0.8rem 1.05rem;
}

.button-inline {
  padding: 0.25rem 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.button-inline:hover:not(:disabled) {
  transform: none;
  color: var(--text);
}

.workspace {
  display: grid;
  gap: 1.25rem;
}

.loader-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2rem);
}

.loader-assembly {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  justify-self: end;
}

.loader-meter {
  display: grid;
  gap: 0.2rem;
  min-width: 5rem;
}

.loader-meter strong {
  font-size: 1.85rem;
  line-height: 1;
}

.loader-meter span {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.loader {
  width: 5rem;
  height: 5rem;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent-strong);
  border-right-color: var(--accent);
  border-radius: 999px;
  animation: spin 1s linear infinite;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.sidebar-panel,
.editor-panel,
.diagnostics-panel {
  padding: clamp(1.25rem, 2.4vw, 1.75rem);
}

.sidebar-panel {
  display: grid;
  gap: 1.4rem;
  align-content: start;
}

.sidebar-block {
  display: grid;
  gap: 0.55rem;
}

.sidebar-firmware {
  gap: 0.8rem;
}

.sidebar-title,
.sidebar-firmware strong {
  font-family: var(--heading-font);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 0.95;
}

.sidebar-firmware .muted-copy {
  min-height: 3.1rem;
}

.sidebar-firmware-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 0.9rem;
  align-items: center;
}

.nav-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.button-nav {
  min-height: 4rem;
  display: grid;
  place-items: center;
}

.button-nav svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.editor-panel {
  --preset-glow: var(--device-accent);
  display: grid;
  gap: 1.5rem;
}

.editor-panel::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 24rem;
  height: 24rem;
  border-radius: 999px;
  background: radial-gradient(circle, var(--preset-glow), transparent 68%);
  opacity: 0.16;
  filter: blur(14px);
  pointer-events: none;
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}

.preset-controls {
  display: grid;
  grid-template-columns: 140px minmax(220px, 1fr);
  gap: 0.9rem;
  width: min(100%, 520px);
}

.field {
  position: relative;
  display: grid;
  gap: 0.65rem;
  min-width: 0;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.035);
}

.field-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.field-label {
  display: inline-flex;
  min-width: 0;
  text-decoration: none;
}

.field span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field-action {
  appearance: none;
  border: 1px solid rgba(124, 224, 207, 0.22);
  border-radius: 999px;
  padding: 0.38rem 0.75rem;
  background: rgba(124, 224, 207, 0.08);
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.field-action:hover {
  border-color: rgba(124, 224, 207, 0.38);
  background: rgba(124, 224, 207, 0.16);
  transform: translateY(-1px);
}

.field-action:focus {
  outline: 2px solid rgba(124, 224, 207, 0.35);
  outline-offset: 2px;
}

.field select {
  appearance: none;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 0.85rem 2.8rem 0.85rem 0.95rem;
  background:
    linear-gradient(45deg, transparent 50%, rgba(255, 255, 255, 0.65) 50%) calc(100% - 1.2rem) calc(50% - 0.12rem) / 0.5rem 0.5rem no-repeat,
    linear-gradient(135deg, rgba(255, 255, 255, 0.65) 50%, transparent 50%) calc(100% - 0.9rem) calc(50% - 0.12rem) / 0.5rem 0.5rem no-repeat,
    rgba(5, 12, 18, 0.72);
  color: var(--text);
}

.field select:focus,
.field input[type="color"]:focus {
  outline: 2px solid rgba(124, 224, 207, 0.35);
  outline-offset: 2px;
}

.field-color input[type="color"] {
  width: 100%;
  height: 3rem;
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}

.field-color input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.field-color input[type="color"]::-webkit-color-swatch {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

.field-color input[type="color"]::-moz-color-swatch {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}

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

.key-card {
  --base-color: var(--accent);
  --accent-color: var(--accent-strong);
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    radial-gradient(circle at top left, var(--base-color), transparent 62%),
    radial-gradient(circle at bottom right, var(--accent-color), transparent 58%),
    rgba(7, 15, 22, 0.7);
  background-blend-mode: screen, normal, normal, normal;
}

.key-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.key-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  grid-column: 1 / -1;
}

.key-index,
.key-position {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.key-index {
  background: rgba(5, 12, 18, 0.58);
}

.key-position {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
}

.key-card-center {
  grid-column: 1 / -1;
  max-width: min(100%, 32rem);
  justify-self: center;
}

.diagnostics-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.updater-panel {
  display: grid;
  gap: 1.4rem;
  padding: clamp(1.25rem, 2.6vw, 1.8rem);
}

.updater-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1.2rem;
}

.updater-header h2 {
  margin-top: 0.2rem;
}

.updater-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 0.85rem;
  min-width: min(100%, 360px);
}

.update-stat,
.update-release-card,
.update-actions-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.035);
}

.update-stat {
  display: grid;
  gap: 0.45rem;
  padding: 1rem 1.05rem;
}

.update-stat strong,
.update-release-card strong,
.update-progress-meta strong {
  font-family: var(--heading-font);
  font-size: 1.4rem;
  line-height: 0.95;
}

.updater-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.35fr);
  gap: 1rem;
}

.update-release-card,
.update-actions-card {
  display: grid;
  gap: 0.9rem;
  padding: 1.1rem 1.15rem;
}

.update-release-card {
  align-content: start;
}

.update-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.update-action-row .button {
  min-width: 13rem;
}

.field-upload {
  gap: 0.55rem;
}

.field-upload input[type="file"] {
  width: 100%;
  color: var(--muted);
}

.field-upload input[type="file"]::file-selector-button {
  margin-right: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0.7rem 0.95rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

.update-custom-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.9fr);
  gap: 0.85rem;
}

.update-custom-actions {
  display: grid;
  gap: 0.85rem;
  align-content: start;
}

.update-custom-actions strong {
  display: block;
  min-height: 2.8rem;
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.3;
}

.update-custom-actions .button {
  width: 100%;
}

.update-progress-shell {
  display: grid;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

.update-progress-track {
  width: 100%;
  height: 0.9rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(5, 12, 18, 0.65);
}

.update-progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 180ms ease;
}

.update-progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.update-progress-meta span {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#debug {
  color: var(--muted);
}

#readings {
  display: block;
  width: min(100%, 42rem);
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  background: rgba(5, 12, 18, 0.72);
  color: #cde3f0;
  font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.1rem 0.3rem 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.dn {
  display: none !important;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  50% {
    transform: translate3d(0.75rem, 1rem, 0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 143, 89, 0.4);
  }

  70% {
    box-shadow: 0 0 0 14px rgba(255, 143, 89, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(255, 143, 89, 0);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .hero-panel,
  .workspace-grid,
  .loader-panel,
  .updater-grid {
    grid-template-columns: 1fr;
  }

  .loader-assembly {
    justify-self: start;
  }
}

@media (max-width: 860px) {
  .editor-header,
  .diagnostics-panel,
  .site-footer,
  .updater-header {
    flex-direction: column;
    align-items: start;
  }

  .preset-controls,
  .key-grid {
    grid-template-columns: 1fr;
  }

  .key-card,
  .key-card-center {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .updater-stats,
  .update-custom-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding: 0.9rem;
  }

  .hero-panel h1 {
    font-size: clamp(2.4rem, 14vw, 3.8rem);
  }

  .status-pill {
    width: 100%;
    border-radius: 20px;
  }

  .button-stack {
    width: 100%;
  }

  .button-stack .button,
  .hero-actions > .button {
    width: 100%;
  }

  .field {
    padding: 0.85rem 0.9rem;
  }

  .field-heading {
    align-items: start;
    flex-direction: column;
  }

  #readings {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}