/* Palette/type/layout mirrors rad.aero's theme (rad_theme/style.css + additional.css):
   medium-grey page background, a white shadowed "container" card holding the
   content, monospace type, black primary buttons, and a rainbow gradient
   divider under the header. */
:root {
  color-scheme: light;
  --bg: #666666;
  --card-bg: #ffffff;
  --field-bg: #f5f5f5;
  --text: #171717;
  --muted: #5b5f66;
  --header-text: rgba(255, 255, 255, 0.92);
  --header-muted: rgba(255, 255, 255, 0.72);
  --border: #e5e5e5;
  --accent: #000000;
  --accent-hover: #222222;
  --accent-text: #ffffff;
  --save: #2563eb;
  --save-hover: #1d4ed8;
  --danger: #b91c1c;
  --danger-hover: #96161a;
  --warn-bg: #fff7ed;
  --warn-border: #fdba74;
  --max: 980px;
  --radius: 18px;
  --radius-sm: 12px;
  --card-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  --rainbow: linear-gradient(
    90deg,
    #003f5b,
    #2b4b7d,
    #5f5195,
    #98509d,
    #cc4c91,
    #f25375,
    #ff6f4e,
    #ff9913
  );
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--header-text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  /* Firefox/Safari shrink the default size to 13px whenever the stack ends in
     the monospace generic; Chrome/Edge don't. Pin it so all browsers match. */
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: 3rem;
}

.topbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 1.75rem;
}

.topbar::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(var(--max), calc(100% - 2.25rem));
  height: 6px;
  border-radius: 4px;
  background: var(--rainbow);
}

.topbar-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-link {
  display: flex;
}

.brand-logo {
  max-height: 100px;
  width: auto;
}

@media (max-width: 700px) {
  .brand-logo {
    max-height: 36px;
  }
}

.topbar h1 {
  font-size: 1.5rem;
  color: var(--header-muted);
  margin: 0;
}

.topbar-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

button {
  font: inherit;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(0, 0, 0, 0.28);
  color: var(--header-text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

button:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.38);
  transform: translateY(-1px);
}

button:focus-visible {
  outline: 2px solid #ff9913;
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Buttons inside a white card sit on a light surface, so they get the
   filled-black "Add to cart" treatment instead of the header's translucent pill. */
.card button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
}

.card button:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

#btn-save {
  background: var(--save);
  color: var(--accent-text);
  border-color: var(--save);
}

#btn-save:hover:not(:disabled) {
  background: var(--save-hover);
  border-color: var(--save-hover);
}

#btn-reboot,
.card .btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

.card .btn-save {
  background: var(--save);
  border-color: var(--save);
}

.card .btn-save:hover:not(:disabled) {
  background: var(--save-hover);
  border-color: var(--save-hover);
}

#btn-reboot:hover:not(:disabled),
.card .btn-danger:hover:not(:disabled) {
  background: var(--danger-hover);
  border-color: var(--danger-hover);
}

/* Update Firmware / Update Airport DB, colored like the device table's status dots. */
.card .btn-update-warn {
  background: #eab308;
  border-color: #eab308;
  color: #171717;
}

.card .btn-update-warn:hover:not(:disabled) {
  background: #ca9a06;
  border-color: #ca9a06;
}

.card .btn-update-bad {
  background: #dc2626;
  border-color: #dc2626;
  color: #fff;
}

.card .btn-update-bad:hover:not(:disabled) {
  background: #b91c1c;
  border-color: #b91c1c;
}

.card-factory-reset {
  border-color: var(--danger);
}

.status-bar {
  max-width: var(--max);
  margin: 1rem auto 0;
  padding: 0 1.25rem 0.75rem;
  font-size: 1.1rem;
  color: var(--header-muted);
}

.status-bar.error {
  color: #ffb4b4;
}

.status-bar.warn {
  color: #ffdca8;
}

.status-bar a {
  color: inherit;
  text-decoration: underline;
}

.app-root {
  max-width: var(--max);
  margin: 0 auto 1.25rem;
  padding: 0 1.25rem;
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 1rem 1.25rem 1.25rem;
  color: var(--text);
}

.card h2 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: var(--text);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.card-header h2 {
  margin: 0;
}

.card-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn-small {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
}

td select {
  min-width: 140px;
}

.status-dot {
  display: inline-block;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--muted);
}

.status-dot.online { background: #22c55e; }
.status-dot.known { background: #eab308; }
.status-dot.ok { background: #22c55e; }
.status-dot.warn { background: #eab308; }
.status-dot.bad { background: #dc2626; }

.dot-cell {
  white-space: nowrap;
}

.dot-cell .status-dot {
  margin-right: 0.4rem;
}

.update-status {
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
}

.update-status.error { color: var(--danger); }
.update-status.warn { color: #9a5b00; }

.hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: -0.25rem 0 0.75rem;
}

.notice-warn {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

.notice-warn a {
  color: inherit;
  text-decoration: underline;
}

.grid {
  display: grid;
  gap: 0.9rem 1.25rem;
}

/* minmax(min(Npx, 100%), 1fr) instead of minmax(Npx, 1fr) keeps a track's
   minimum from exceeding the space actually available, which is what was
   pushing content past the card edge on narrow viewports. */
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr)); }
.grid-fixed-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input, select {
  font: inherit;
  min-width: 0;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--field-bg);
  color: var(--text);
}

input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* Short numeric fields (e.g. V-Speeds, 0-255) don't need to stretch to fill their column. */
.input-narrow {
  align-self: flex-start;
  width: 5rem;
}

input[type="color"] {
  padding: 0.15rem;
  height: 2.2rem;
  cursor: pointer;
}

input[type="range"] {
  padding: 0;
  accent-color: var(--accent);
}

.range-value {
  color: var(--text);
  font-weight: 600;
  margin-left: 0.35rem;
}

.screen-setup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 360px) minmax(0, 1fr);
  grid-template-areas: "left preview right";
  align-items: center;
  gap: 1rem 1.5rem;
}

.colors-column {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.colors-left { grid-area: left; }
.colors-right { grid-area: right; }
.screen-setup .screen-preview-frame { grid-area: preview; }

.colors-column label {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.5rem;
  align-items: center;
  gap: 0.75rem;
}

.screen-setup-sliders {
  margin-top: 1.25rem;
}

.check-label {
  flex-direction: row;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
}

@media (max-width: 700px) {
  .screen-setup {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas:
      "preview preview"
      "left right";
  }
}

.radio-group {
  border: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.radio-group legend {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.checkbox-group {
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.checkbox-group legend {
  font-weight: 600;
  color: var(--text);
}

.radio-group label {
  flex-direction: row;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
}

.progress-block {
  margin: 0.75rem 0;
}

.progress-title {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.progress-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

progress {
  flex: 1;
  height: 0.9rem;
  accent-color: var(--accent);
}

.progress-label {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.screen-preview-frame {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}

#screen-preview-svg,
#airspeed-preview-svg {
  width: 100%;
  max-width: 360px;
  height: auto;
}

.vspeeds-setup {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  align-items: center;
  gap: 1rem 1.5rem;
}

@media (max-width: 700px) {
  .vspeeds-setup {
    grid-template-columns: minmax(0, 1fr);
  }
}

.leave-dialog {
  width: min(32rem, calc(100% - 2rem));
}

.leave-dialog::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

.leave-dialog .hint {
  margin: 0 0 1rem;
}

.leave-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}