:root {
  --ink: #17202c;
  --muted: #637083;
  --line: #d9dee5;
  --paper: #fff;
  --soft: #f3f5f7;
  --accent: #c92e27;
  --accent-soft: #fff1f0;
  --blue: #174a72;
  --blue-soft: #edf6fc;
  --green: #19704f;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 100%;
  background: var(--soft);
  scroll-padding-bottom: 190px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 320px;
  margin: 0;
  padding: 0 0 calc(150px + env(safe-area-inset-bottom));
  color: var(--ink);
  background: var(--soft);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
  font-size: 1rem;
}

button,
label,
a {
  -webkit-tap-highlight-color: transparent;
}

button:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.tool-intro,
.tool-shell {
  width: min(100% - 24px, 760px);
  margin-inline: auto;
}

.tool-intro {
  padding: 18px 0 14px;
  display: grid;
  gap: 10px;
  border-bottom: 1px solid var(--line);
}

.ldev-logo {
  width: 144px;
  max-width: 48vw;
  height: auto;
  margin-bottom: 6px;
  display: block;
}

.intro-copy h1 {
  margin: 2px 0 4px;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.intro-copy p,
.disclaimer {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.contact-strip {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 5px 12px;
}

.contact-strip a {
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.disclaimer {
  grid-column: 1 / -1;
  padding: 8px 10px;
  color: #5d4b32;
  background: #fff8e7;
  border: 1px solid #ead9ab;
  border-radius: 7px;
  font-size: 0.875rem;
}

.tool-shell {
  padding-top: 12px;
  display: grid;
  gap: 12px;
}

.tool-card {
  padding: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card-heading {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 10px;
}

.step {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--ink);
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: 900;
}

.card-heading h2 {
  margin: 1px 0 2px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.card-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.4;
}

fieldset {
  padding: 0;
  border: 0;
}

.device-selector {
  margin: 15px 0 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.device-selector legend,
.field-label {
  width: 100%;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.device-selector label {
  position: relative;
}

.device-selector input {
  position: absolute;
  opacity: 0;
}

.device-selector span,
.button-tabs button {
  min-height: 42px;
  display: grid;
  place-items: center;
  color: #586577;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
}

.device-selector input:checked + span {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent);
}

.mode-wrap {
  margin-bottom: 12px;
}

.button-tabs,
.binary-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
}

.button-tabs button {
  padding: 0 8px;
}

.button-tabs button.active {
  color: white;
  background: var(--blue);
  border-color: var(--blue);
}

.setup-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}

.field {
  display: grid;
  gap: 5px;
}

.field > span,
.control-label {
  color: #465367;
  font-size: 0.875rem;
  font-weight: 800;
}

.field input,
.parameter-control input,
.parameter-control select,
.filter-tools input,
.filter-tools select,
.change-password > input {
  width: 100%;
  min-height: 42px;
  padding: 0 11px;
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.field input:focus,
.parameter-control input:focus,
.parameter-control select:focus,
.filter-tools input:focus,
.filter-tools select:focus,
.change-password > input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 74, 114, 0.1);
}

.field small {
  min-height: 12px;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.35;
}

.change-password {
  margin-top: 11px;
  padding: 10px;
  display: grid;
  grid-template-columns: auto 1fr minmax(110px, 0.45fr);
  align-items: center;
  gap: 9px;
  background: var(--soft);
  border-radius: 8px;
}

.change-password strong,
.change-password small {
  display: block;
}

.change-password strong {
  font-size: 0.9rem;
}

.change-password small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.875rem;
}

.change-password > input {
  min-height: 36px;
  font-size: 0.9rem;
}

.change-password > input:disabled {
  opacity: 0.5;
}

.switch input {
  position: absolute;
  opacity: 0;
}

.switch span {
  position: relative;
  width: 34px;
  height: 20px;
  display: block;
  background: #c5ccd5;
  border-radius: 999px;
  cursor: pointer;
}

.switch span::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 14px;
  height: 14px;
  content: "";
  background: white;
  border-radius: 50%;
  transition: transform 150ms ease;
}

.switch input:checked + span {
  background: var(--accent);
}

.switch input:checked + span::after {
  transform: translateX(14px);
}

.dtmf-panel {
  border-color: #b8cfdf;
  background: #f8fcff;
}

.dtmf-steps {
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
  list-style: none;
  counter-reset: dtmf;
}

.dtmf-steps li {
  padding: 9px 9px 9px 37px;
  position: relative;
  display: grid;
  gap: 4px;
  background: white;
  border: 1px solid #d4e1ea;
  border-radius: 7px;
  counter-increment: dtmf;
}

.dtmf-steps li::before {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  content: counter(dtmf);
  color: white;
  background: var(--blue);
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 900;
}

.dtmf-steps span {
  color: var(--muted);
  font-size: 0.875rem;
}

.dtmf-steps code,
.manual-note code {
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.05rem;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.manual-note {
  margin-top: 9px;
  padding: 8px 9px;
  color: #566577;
  background: var(--blue-soft);
  border-radius: 7px;
  font-size: 0.875rem;
  line-height: 1.5;
}

.selected-count {
  min-width: 25px;
  min-height: 25px;
  padding: 0 7px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 900;
}

.filter-tools {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr minmax(150px, 0.55fr);
  gap: 7px;
}

.filter-tools input,
.filter-tools select {
  min-height: 40px;
  font-size: 0.9rem;
}

.list-meta {
  min-height: 33px;
  padding: 8px 1px 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 0.875rem;
}

.list-meta button {
  padding: 3px 0;
  color: var(--accent);
  background: none;
  border: 0;
  font-size: 0.875rem;
  font-weight: 800;
}

.parameter-list {
  display: grid;
  gap: 7px;
}

.parameter-card {
  padding: 10px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(185px, 0.55fr);
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.parameter-card.selected {
  background: #fffafa;
  border-color: #e4aaa6;
}

.parameter-card.read-only {
  opacity: 0.55;
}

.parameters-card.password-mode {
  border-color: #d49a46;
  background: #fffbf3;
}

.parameters-card.password-mode .card-heading h2::after {
  margin-left: 0.45rem;
  padding: 0.2rem 0.4rem;
  content: "Locked";
  color: #7a4b0d;
  background: #ffe4b7;
  border-radius: 999px;
  font-size: 0.875rem;
  text-transform: uppercase;
  vertical-align: middle;
}

.parameter-card.password-locked {
  opacity: 0.42;
}

.parameter-card.password-locked,
.parameter-card.password-locked * {
  cursor: not-allowed;
}

.include-check {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.parameter-copy {
  min-width: 0;
}

.parameter-title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.parameter-title strong {
  min-width: 0;
  overflow: hidden;
  font-size: 0.9rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.parameter-id,
.recommended-badge {
  padding: 2px 5px;
  flex: 0 0 auto;
  color: #596679;
  background: #edf0f3;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.875rem;
  font-weight: 900;
}

.recommended-badge {
  color: var(--green);
  background: #e9f7f0;
  font-family: inherit;
  text-transform: uppercase;
}

.parameter-copy small {
  margin-top: 4px;
  display: block;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.parameter-error {
  color: var(--accent) !important;
}

.parameter-control {
  min-width: 0;
}

.parameter-control input,
.parameter-control select {
  min-height: 38px;
  font-size: 0.9rem;
}

.binary-options button {
  min-height: 38px;
  padding: 4px 6px;
  color: #516074;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 0.875rem;
  font-weight: 800;
  line-height: 1.2;
}

.binary-options button.active {
  color: white;
  background: var(--blue);
  border-color: var(--blue);
}

.no-results {
  padding: 30px 10px;
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
}

.references-card h2 {
  margin: 0;
  font-size: 1rem;
}

.references-card p {
  margin: 5px 0 10px;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.5;
}

.references-card div {
  display: grid;
  gap: 5px;
}

.references-card a {
  color: var(--blue);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
}

.command-tray {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  min-height: 132px;
  padding: 10px max(12px, calc((100% - 736px) / 2)) calc(10px + env(safe-area-inset-bottom));
  color: white;
  background: rgba(23, 32, 44, 0.98);
  border-top: 2px solid var(--accent);
  box-shadow: 0 -8px 25px rgba(18, 28, 40, 0.18);
  backdrop-filter: blur(12px);
}

.command-tray.password-mode {
  background: rgba(76, 45, 11, 0.98);
  border-top-color: #ffb13b;
}

.command-tray.password-mode .tray-topline strong {
  color: #ffd99d;
}

.command-tray.password-mode .primary-action {
  color: #2c1a08;
  background: #ffb13b;
}

.tray-topline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: #aab4c1;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tray-topline strong {
  color: white;
}

.command-tray > code {
  min-height: 40px;
  max-height: 58px;
  margin: 7px 0;
  padding: 7px 9px;
  display: block;
  overflow: auto;
  color: #e9eef3;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.875rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.tray-actions {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 6px;
}

.tray-actions a,
.tray-actions button {
  min-height: 34px;
  padding: 0 14px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 900;
  text-decoration: none;
}

.primary-action {
  color: white;
  background: var(--accent);
}

.primary-action.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.tray-actions button {
  color: var(--ink);
  background: white;
}

.tray-actions button:disabled {
  opacity: 0.45;
}

dialog {
  width: min(100% - 24px, 600px);
  max-height: calc(100dvh - 40px);
  padding: 14px;
  border: 0;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(20, 28, 38, 0.28);
}

dialog::backdrop {
  background: rgba(16, 24, 34, 0.58);
}

.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dialog-heading strong {
  font-size: 1.05rem;
}

.dialog-heading button {
  width: 30px;
  height: 30px;
  background: var(--soft);
  border: 0;
  border-radius: 50%;
  font-size: 1.4rem;
}

.message-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.message-card {
  padding: 10px;
  background: var(--soft);
  border-radius: 7px;
}

.message-card strong,
.message-card small {
  display: block;
}

.message-card strong {
  font-size: 0.9rem;
}

.message-card small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.875rem;
}

.message-card code {
  margin: 7px 0;
  padding: 8px;
  display: block;
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.875rem;
  overflow-wrap: anywhere;
}

.message-card div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
}

.message-card a,
.message-card button {
  min-height: 34px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 800;
  text-decoration: none;
}

.message-card button {
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
}

.toast {
  position: fixed;
  right: 12px;
  bottom: calc(145px + env(safe-area-inset-bottom));
  z-index: 50;
  padding: 8px 11px;
  color: white;
  background: var(--green);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 800;
  opacity: 0;
  transform: translateY(5px);
  transition: 150ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 600px) {
  body {
    padding-bottom: calc(156px + env(safe-area-inset-bottom));
  }

  .tool-intro,
  .tool-shell {
    width: calc(100% - 16px);
  }

  .tool-card {
    padding: 13px;
  }

  .setup-fields,
  .filter-tools {
    grid-template-columns: 1fr;
  }

  .change-password {
    grid-template-columns: auto 1fr;
  }

  .change-password > input {
    grid-column: 1 / -1;
  }

  .parameter-card {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px;
  }

  .parameter-control {
    grid-column: 2;
  }

  .parameter-copy small {
    white-space: normal;
  }

  .command-tray {
    padding-inline: 8px;
  }
}