:root {
  --canvas: #eff2f1;
  --canvas-deep: #e6ebe9;
  --surface: #ffffff;
  --surface-sunken: #f6f9f8;
  --ink: #0f1f19;
  --ink-muted: #586862;
  --ink-faint: #8b9a94;
  --line: #dde5e2;
  --line-strong: #c5d2ce;
  --accent: #0f7b4a;
  --accent-deep: #0a5c37;
  --accent-soft: #e4f5eb;
  --inbound: #37688c;
  --inbound-soft: #eaf1f7;
  --simulated: #a86400;
  --simulated-soft: #fdf3e2;
  --danger: #b42318;
  --danger-soft: #fdeceb;
  --radius-lg: 14px;
  --radius: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 31, 25, 0.06);
  --shadow: 0 1px 2px rgba(15, 31, 25, 0.05), 0 14px 30px -22px rgba(15, 31, 25, 0.45);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(1200px 520px at 50% -220px, #ffffff 0%, rgba(255, 255, 255, 0) 70%),
    var(--canvas);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

.mono {
  font-family: var(--mono);
  font-size: 0.82em;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------------------------------------------------------------- shell */

.shell {
  width: min(100% - 2rem, 960px);
  margin-inline: auto;
  padding-block: 1.25rem 4rem;
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0.25rem;
  margin-bottom: 1.25rem;
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(160deg, #12915a 0%, var(--accent-deep) 100%);
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: grid;
  min-width: 0;
}

.brand-text strong {
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  white-space: nowrap;
}

.brand-text span {
  font-size: 12.5px;
  color: var(--ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: none;
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.6rem 0.28rem 0.5rem;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid #c7e7d7;
  border-radius: 999px;
  white-space: nowrap;
}

.live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(15, 123, 74, 0.45);
  animation: pulse 2.4s ease-out infinite;
}

.live[data-state="error"] {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: #f3c9c5;
}

.live[data-state="error"] i {
  background: var(--danger);
  animation: none;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(15, 123, 74, 0.5);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(15, 123, 74, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(15, 123, 74, 0);
  }
}

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent-deep);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-ghost {
  color: var(--ink-muted);
  background: var(--surface);
  border-color: var(--line-strong);
}

.btn-ghost:hover {
  color: var(--ink);
  background: var(--surface-sunken);
  border-color: var(--line-strong);
}

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

.btn-danger:hover {
  background: #8f1c13;
  border-color: #8f1c13;
  color: #fff;
}

.btn-quiet {
  color: var(--ink-faint);
  background: transparent;
  border-color: transparent;
}

.btn-quiet:hover {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: transparent;
}

.btn-sm {
  padding: 0.32rem 0.6rem;
  font-size: 13px;
}

.btn-icon {
  padding: 0.35rem;
  width: 30px;
  height: 30px;
  color: var(--ink-faint);
  background: transparent;
  border-color: transparent;
}

.btn-icon:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

.btn-icon svg {
  width: 15px;
  height: 15px;
}

.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* ---------------------------------------------------------------- panels */

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.composer {
  padding: 1.15rem 1.25rem 1.25rem;
  margin-bottom: 1rem;
}

.composer[hidden] {
  display: none;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.panel-head h2 {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.panel-head p {
  font-size: 13px;
  color: var(--ink-muted);
}

/* ---------------------------------------------------------------- forms */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 0.9rem;
  align-items: end;
}

.field {
  display: grid;
  gap: 0.3rem;
  min-width: 0;
}

.field > label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.field-wide {
  grid-column: 1 / -1;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
input:not([type]),
textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  background: var(--surface-sunken);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--ink-faint);
}

input:hover,
textarea:hover {
  border-color: var(--line-strong);
}

input:focus,
textarea:focus {
  outline: none;
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 123, 74, 0.13);
}

textarea {
  min-height: 84px;
  resize: vertical;
  line-height: 1.5;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ---------------------------------------------------------------- tabs */

.tabs {
  display: inline-flex;
  gap: 0.15rem;
  padding: 0.2rem;
  margin-bottom: 1rem;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.tab {
  padding: 0.32rem 0.85rem;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.tab:hover {
  color: var(--ink);
}

.tab.is-active {
  color: var(--accent-deep);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------- template builder */

.param-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.7rem 0.85rem;
}

.param-grid:empty {
  display: none;
}

.preview {
  margin-top: 0.9rem;
  padding: 0.75rem 0.9rem;
  background: var(--accent-soft);
  border: 1px solid #cbe8d9;
  border-radius: var(--radius);
}

.preview[hidden] {
  display: none;
}

.preview p {
  margin-top: 0.25rem;
  font-size: 14.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.preview .pending {
  padding: 0 2px;
  color: var(--simulated);
  background: var(--simulated-soft);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 0.85em;
}

.hint code {
  padding: 0 3px;
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.form-actions .spacer {
  flex: 1;
}

.hint {
  font-size: 12.5px;
  color: var(--ink-faint);
}

.field-hint {
  min-height: 15px;
  font-size: 11.5px;
  color: var(--accent-deep);
}

/* ---------------------------------------------------------------- aliases */

.aliases {
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.25rem;
}

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

.aliases-head h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.aliases[data-collapsed="true"] .aliases-body {
  display: none;
}

.aliases-body {
  display: grid;
  gap: 0.8rem;
  margin-top: 0.85rem;
}

.alias-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.alias-list:empty {
  display: none;
}

.alias {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.15rem 0.2rem 0.15rem 0.6rem;
  background: var(--surface-sunken);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.alias-name {
  font-size: 13px;
  font-weight: 650;
}

.alias-number {
  color: var(--ink-muted);
  font-size: 11.5px;
}

.alias-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.7rem;
  align-items: end;
}

.alias-form .field {
  flex: 1 1 150px;
}

/* ---------------------------------------------------------------- toolbar */

.toolbar {
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.25rem;
}

.toolbar-head {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.toolbar form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 0.85rem;
  align-items: end;
}

.toolbar .field {
  flex: 1 1 125px;
}

.toolbar .field-search {
  flex: 1.5 1 140px;
}

.toolbar .actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex: 0 0 auto;
}

.toggle-filters {
  display: none;
}

/* ---------------------------------------------------------------- log */

.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
  padding-inline: 0.15rem;
}

.log-head h2 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.count {
  padding: 0.1rem 0.5rem;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.count[data-flash="true"] {
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-color: #c7e7d7;
}

.feed {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.msg {
  position: relative;
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 0 0.85rem;
  padding-bottom: 0.85rem;
}

.msg::before {
  content: "";
  position: absolute;
  left: 12.5px;
  top: 22px;
  bottom: -2px;
  width: 1px;
  background: var(--line-strong);
}

.msg:last-child::before {
  display: none;
}

.node {
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  margin: 6px auto 0;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--line-strong);
}

.msg[data-direction="outbound"] .node {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.msg[data-direction="inbound"] .node {
  border-color: var(--inbound);
  background: var(--surface);
  box-shadow: 0 0 0 4px var(--inbound-soft);
}

.msg[data-direction="simulated"] .node {
  border-color: var(--simulated);
  background: var(--surface);
  border-style: dashed;
  box-shadow: 0 0 0 4px var(--simulated-soft);
}

.card {
  padding: 0.8rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.msg[data-direction="outbound"] .card {
  background: var(--accent-soft);
  border-color: #cbe8d9;
}

.msg[data-direction="inbound"] .card {
  background: var(--surface);
  border-color: var(--line);
}

.msg[data-direction="simulated"] .card {
  background: var(--simulated-soft);
  border-color: #f0dcbb;
}

.meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  margin-bottom: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.1rem 0.45rem;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid transparent;
}

.chip-outbound {
  color: var(--accent-deep);
  background: rgba(255, 255, 255, 0.72);
  border-color: #bfe3d1;
}

.chip-inbound {
  color: var(--inbound);
  background: var(--inbound-soft);
  border-color: #cfdeea;
}

.chip-simulated {
  color: var(--simulated);
  background: #fffaf0;
  border-color: #eed9b3;
}

.chip-type {
  color: var(--ink-faint);
  background: transparent;
  border-color: var(--line-strong);
  font-family: var(--mono);
  letter-spacing: 0.02em;
  text-transform: none;
}

.party {
  color: var(--ink-muted);
}

.card-foot {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 0.55rem;
  padding-top: 0.45rem;
  border-top: 1px dashed var(--line-strong);
}

.card-foot .raw {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  padding: 0;
  border-top: 0;
}

.card-foot .btn {
  flex: none;
}

.body {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.55;
}

.body mark {
  padding: 0 2px;
  color: inherit;
  background: #fde68a;
  border-radius: 3px;
}

.raw {
  margin-top: 0.55rem;
  border-top: 1px dashed var(--line-strong);
  padding-top: 0.45rem;
}

.raw summary {
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-muted);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

.raw summary::before {
  content: "›";
  display: inline-block;
  font-size: 15px;
  line-height: 1;
  transition: transform 0.15s ease;
}

.raw[open] summary::before {
  transform: rotate(90deg);
}

.raw summary:hover {
  color: var(--ink);
}

.raw pre {
  margin: 0.5rem 0 0;
  padding: 0.6rem 0.7rem;
  max-height: 260px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  background: rgba(15, 31, 25, 0.045);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------------------------------------------------------------- empty */

.empty {
  display: grid;
  justify-items: center;
  gap: 0.5rem;
  padding: 2.6rem 1.25rem;
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
}

.empty[hidden] {
  display: none;
}

.empty-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 0.25rem;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 13px;
}

.empty h3 {
  font-size: 1rem;
  font-weight: 650;
}

.empty p {
  max-width: 42ch;
  font-size: 13.5px;
  color: var(--ink-muted);
}

/* ---------------------------------------------------------------- pager */

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  margin-top: 1.1rem;
}

.pager span {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-muted);
}

/* ---------------------------------------------------------------- toast */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  max-width: min(92vw, 520px);
  padding: 0.65rem 0.9rem;
  font-size: 13.5px;
  font-weight: 500;
  color: #fff;
  background: #16241e;
  border-radius: var(--radius);
  box-shadow: 0 12px 30px -12px rgba(15, 31, 25, 0.6);
  transform: translate(-50%, 140%);
  transition: transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1), opacity 0.28s ease;
  opacity: 0;
  pointer-events: none;
}

.toast[data-visible="true"] {
  transform: translate(-50%, 0);
  opacity: 1;
}

.toast[data-tone="error"] {
  background: var(--danger);
}

.toast[data-tone="success"] {
  background: var(--accent-deep);
}

.toast button {
  flex: none;
  padding: 0.1rem 0.35rem;
  font-size: 13px;
  font-weight: 700;
  color: inherit;
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  opacity: 0.75;
}

.toast button:hover {
  opacity: 1;
}

/* ---------------------------------------------------------------- footer */

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  justify-content: space-between;
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-faint);
}

/* ---------------------------------------------------------------- responsive */

@media (max-width: 720px) {
  .shell {
    width: min(100% - 1.5rem, 960px);
    padding-block: 0.75rem 3rem;
  }

  .brand-text span {
    display: none;
  }

  .live span {
    display: none;
  }

  .composer,
  .toolbar {
    padding: 0.9rem 0.9rem 1rem;
  }

  .toolbar .field {
    flex: 1 1 calc(50% - 0.45rem);
  }

  .toolbar .field-search {
    flex: 1 1 100%;
  }

  .toolbar .actions {
    flex: 1 1 100%;
  }

  .toolbar .actions .btn {
    flex: 1;
  }

  .toolbar-head {
    display: flex;
  }

  .toolbar[data-collapsed="true"] .toolbar-body {
    display: none;
  }
}

@media (max-width: 520px) {
  .msg {
    grid-template-columns: 18px 1fr;
    gap: 0 0.55rem;
  }

  .msg::before {
    left: 8.5px;
  }

  .node {
    width: 9px;
    height: 9px;
    margin-top: 7px;
  }

  .card {
    padding: 0.7rem 0.8rem;
  }

  .topbar-actions .btn span {
    display: none;
  }

  .topbar-actions .btn {
    padding: 0.5rem 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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