/* Tokens, reset, shell, panel and button rules come from the shared
   meshtastic.es app template (see .tmp/meshtastic-es-app-template and its
   DESIGN_GUIDELINES.md). Form controls are authored here because the template
   ships none; they follow the same .btn recipe. */
:root {
  --bg: #0b0f1a;
  --panel: #111827;
  --panel2: #1a2236;
  --border: #1f2d45;
  --accent: #5eead4;
  --accent2: #7dd3fc;
  --warn: #fbbf24;
  --danger: #ef4444;
  --text: #e2e8f0;
  --muted: #64748b;
  --mono: "Space Mono", ui-monospace, Consolas, monospace;
  --sans: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--mono);
  font-weight: 700;
  margin: 0;
}

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* Shell */
.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.app-header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.app-header .logo svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.app-header .logo em {
  font-style: normal;
  color: var(--muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
}

.app-header .header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-header .tagline {
  font-size: 12px;
  color: var(--muted);
  text-align: right;
  display: none;
}

@media (min-width: 860px) {
  .app-header .tagline {
    display: block;
  }
}

@media (max-width: 640px) {
  .app-header {
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
  }
  .app-header .logo {
    font-size: 13px;
  }
  .app-header .header-right {
    margin-left: 0;
    width: 100%;
    justify-content: space-between;
  }
}

.app-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

@media (max-width: 640px) {
  .app-main {
    padding: 16px;
  }
}

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.panel h2 {
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--text);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Step numbers come from a counter so panels can be added or reordered freely. */
#buildForm {
  counter-reset: step;
}

#buildForm .panel h2::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
  font-size: 11px;
  flex-shrink: 0;
}

.sub-head {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 18px 0 10px;
}

/* Collapsed sections: closed by default, inner panels are not numbered steps. */
.collapsible {
  margin-bottom: 20px;
}

.collapsible > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
}

.collapsible > summary::-webkit-details-marker {
  display: none;
}

.collapsible > summary::before {
  content: "+";
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.collapsible[open] > summary {
  margin-bottom: 20px;
}

.collapsible[open] > summary::before {
  content: "\2212";
}

#buildForm .collapsible .panel h2::before {
  content: none;
  counter-increment: none;
}

.badge {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warn);
  background: rgba(251, 191, 36, 0.12);
  border-radius: var(--radius);
  padding: 4px 8px;
}

/* Buttons */
.btn {
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s, box-shadow 0.15s;
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 8px rgba(94, 234, 212, 0.15);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  border-color: rgba(94, 234, 212, 0.35);
  background: rgba(94, 234, 212, 0.1);
  color: var(--accent);
}

.btn-primary:hover:not(:disabled) {
  background: rgba(94, 234, 212, 0.2);
  border-color: var(--accent);
}

.btn-mini {
  padding: 6px 10px;
  font-size: 0.7rem;
}

.lang-switch {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.lang-button {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 6px 10px;
  border: 0;
  background: var(--panel2);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}

.lang-button:hover {
  color: var(--accent);
}

.lang-button.is-active {
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
}

.status-line {
  margin: 12px 0 0;
  font-size: 0.82rem;
  font-family: var(--mono);
  color: var(--muted);
  line-height: 1.5;
}

.status-warn {
  color: var(--warn);
}

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

/* Author rules set `display` on labels and panels, which beats the user-agent
   rule for [hidden] and leaves "hidden" controls on screen. Keep the attribute
   authoritative for every element. */
[hidden] {
  display: none !important;
}

/* Form controls */
label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  text-transform: none;
  letter-spacing: normal;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.btn:focus-visible,
.lang-button:focus-visible,
summary:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(94, 234, 212, 0.2);
}

input:disabled,
select:disabled,
textarea:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

input.fieldError {
  border-color: var(--danger);
}

input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent);
  margin: 0;
}

.check-line {
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.78rem;
  color: var(--text);
  padding: 6px 0;
}

/* A hint next to a checkbox squeezes the label on a phone; give it its own line. */
.check-line .field-hint {
  flex-basis: 100%;
  margin-left: 26px;
}

.field-hint {
  font-family: var(--sans);
  font-size: 0.7rem;
  text-transform: none;
  letter-spacing: normal;
  color: var(--muted);
}

.inline-input {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.inline-input input {
  flex: 1 1 160px;
}

.byte-counter {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
}

/* Grids */
.grid {
  display: grid;
  gap: 14px;
}

.grid-two {
  grid-template-columns: 1fr 1fr;
}

.grid-three {
  grid-template-columns: repeat(3, 1fr);
}

.grid-four {
  grid-template-columns: repeat(4, 1fr);
}

.span-two {
  grid-column: span 2;
}

@media (max-width: 720px) {
  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }
  .span-two {
    grid-column: auto;
  }
}

#customLoraFields .grid {
  margin-top: 12px;
}

/* Channels */
.channel-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

/* The fields are their own grid so the handle never takes a field's column. */
.channel-fields {
  display: grid;
  grid-template-columns: 1.4fr 1.4fr 1.2fr auto auto auto;
  gap: 12px;
  align-items: end;
}

.channel-row:last-child {
  border-bottom: 0;
}

.channel-row .check-line {
  padding-bottom: 9px;
}

.channel-flags {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.channel-flags .check-line {
  padding: 2px 0;
}

.btn-icon {
  align-self: end;
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
}

@media (max-width: 720px) {
  .channel-fields {
    grid-template-columns: 1fr 1fr;
  }
  .precision-cell {
    grid-column: span 2;
  }
}

/* Reordering channels: pointer events, so the handle must not scroll the page. */
.drag-handle {
  align-self: center;
  touch-action: none;
  cursor: grab;
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  padding: 8px 4px;
}

.drag-handle:disabled {
  opacity: 0.25;
  cursor: default;
}

.channel-row.dragging {
  opacity: 0.6;
  background: var(--panel2);
  cursor: grabbing;
}

.precision-cell input[type="range"] {
  padding: 0;
  border: 0;
  background: none;
  accent-color: var(--accent);
  height: 24px;
}

.app-footer {
  padding: 0 24px 32px;
  max-width: 960px;
  margin: 0 auto;
}

.app-footer p {
  margin: 0;
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 640px) {
  .app-footer {
    padding: 0 16px 24px;
  }
}

/* Combobox: filters its options by substring as you type. */
.combo {
  position: relative;
}

.combo-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 30;
  max-height: 260px;
  overflow-y: auto;
  margin: 0;
  padding: 4px;
  list-style: none;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.combo-list li {
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
}

.combo-list li:hover,
.combo-list li[aria-selected="true"] {
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent);
}

.extra-row {
  display: grid;
  grid-template-columns: 1.2fr 1.4fr auto;
  gap: 12px;
  align-items: end;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.extra-row:last-child {
  border-bottom: 0;
}

#addExtraPref {
  margin-top: 12px;
}

@media (max-width: 720px) {
  .extra-row {
    grid-template-columns: 1fr;
  }
}

/* JSON preview */
.json-preview summary {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 0;
  border-radius: var(--radius);
}

.json-preview textarea {
  margin-top: 10px;
  min-height: 200px;
  background: var(--bg);
  resize: vertical;
}

.submit-row {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.submit-cell {
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 720px) {
  .submit-cell {
    justify-content: stretch;
  }
  .submit-cell .btn {
    width: 100%;
  }
}

/* Result */
.result-list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.result-list > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  align-items: baseline;
}

.result-list dt {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.result-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  word-break: break-all;
}

.result-list a {
  color: var(--accent);
}

.result-list a:not([href]) {
  color: var(--muted);
}

.result-url {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 16px;
  padding: 12px 14px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.result-url a {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--accent);
  word-break: break-all;
  flex: 1 1 auto;
}

@media (max-width: 720px) {
  .result-list > div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}