:root {
  --ink: #0a0d10;
  --ink-soft: #0f1419;
  --panel: #131a20;
  --panel-2: #172028;
  --line: #26323c;
  --line-soft: #1c262e;
  --text: #dbe3e9;
  --muted: #8496a3;
  --signal: #f0a33c;
  --signal-dim: #8a5c1c;
  --ok: #45c98c;
  --err: #ff6464;
  --font-display: "Bahnschrift", "DIN Alternate", "Franklin Gothic Medium", "Trebuchet MS", sans-serif;
  --font-body: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Cascadia Mono", "Consolas", "Courier New", monospace;
  --radius: 3px;
}

* { box-sizing: border-box; }

/* A `hidden` attribute must win over the component display rules below. */
[hidden] { display: none !important; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  padding: 22px clamp(14px, 3vw, 40px) 40px;
  background:
    radial-gradient(1100px 500px at 12% -10%, rgba(240, 163, 60, 0.11), transparent 60%),
    radial-gradient(900px 520px at 92% 0%, rgba(69, 201, 140, 0.07), transparent 55%),
    var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 64px);
  mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- top bar */

.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--signal);
  border-radius: var(--radius);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  box-shadow: inset 0 0 18px rgba(240, 163, 60, 0.16);
}

.brand-text { display: flex; flex-direction: column; gap: 2px; }

.brand-text strong {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.24em;
  font-weight: 600;
}

.brand-text em {
  font-style: normal;
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.link-state {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(19, 26, 32, 0.7);
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 3px rgba(132, 150, 163, 0.14);
}

.link-state[data-state="online"] { color: var(--text); border-color: rgba(69, 201, 140, 0.45); }
.link-state[data-state="online"] .led {
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(69, 201, 140, 0.18), 0 0 12px rgba(69, 201, 140, 0.7);
  animation: pulse 2.4s ease-in-out infinite;
}
.link-state[data-state="stale"] { color: var(--signal); border-color: rgba(240, 163, 60, 0.4); }
.link-state[data-state="stale"] .led { background: var(--signal); box-shadow: 0 0 0 3px rgba(240, 163, 60, 0.16); }
.link-state[data-state="offline"] { color: var(--err); border-color: rgba(255, 100, 100, 0.32); }
.link-state[data-state="offline"] .led { background: var(--err); box-shadow: 0 0 0 3px rgba(255, 100, 100, 0.14); }

.link-time { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ---------------------------------------------------------------- layout */

.layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 18px;
  margin-top: 22px;
  align-items: start;
}

.side { display: grid; gap: 18px; }

.panel {
  position: relative;
  padding: 20px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.022), transparent 45%),
    var(--panel);
  box-shadow: 0 18px 40px -28px rgba(0, 0, 0, 0.9);
  animation: rise 0.5s ease both;
}

.panel:nth-child(2) { animation-delay: 0.06s; }
.panel:nth-child(3) { animation-delay: 0.12s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel h1, .panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.panel h1 { font-size: 24px; }
.panel h2 { font-size: 16px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

.panel-meta { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }

.badge {
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.badge[data-state="online"] { color: var(--ok); border-color: rgba(69, 201, 140, 0.45); }
.badge[data-state="stale"] { color: var(--signal); border-color: rgba(240, 163, 60, 0.45); }
.badge[data-state="offline"] { color: var(--err); border-color: rgba(255, 100, 100, 0.4); }

.context-chip {
  padding: 3px 9px;
  border: 1px dashed var(--signal-dim);
  border-radius: var(--radius);
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- context */

.context {
  margin-bottom: 16px;
  padding: 12px 14px;
  border-left: 2px solid var(--signal);
  background: linear-gradient(90deg, rgba(240, 163, 60, 0.09), transparent 70%);
}

.context-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
}

.context-title { margin: 3px 0 0; font-family: var(--font-display); font-size: 18px; }
.context-sub { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.context-sub:empty { display: none; }

/* ---------------------------------------------------------------- form */

.field { display: block; margin-bottom: 15px; }

.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.field-input {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-soft);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field-input::placeholder { color: #55636e; }

.field-input:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(240, 163, 60, 0.13);
}

.field-input.mono { font-family: var(--font-mono); letter-spacing: 0.04em; }

.field-area { resize: vertical; min-height: 104px; line-height: 1.45; }

.field-hint {
  display: block;
  margin-top: 5px;
  font-size: 11.5px;
  color: var(--muted);
  font-family: var(--font-mono);
}

.field-hint.error { color: var(--err); }

.templates { display: flex; flex-wrap: wrap; gap: 7px; margin: 4px 0 18px; }

.chip {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 12.5px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.chip:hover { color: var(--signal); border-color: var(--signal-dim); background: rgba(240, 163, 60, 0.07); }

.send-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

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

.btn-primary {
  background: var(--signal);
  color: #1a1206;
  font-weight: 700;
}

.btn-primary:hover { background: #ffb753; }
.btn-primary:disabled { opacity: 0.55; cursor: progress; }

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

.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn-small { padding: 5px 10px; font-size: 11px; letter-spacing: 0.06em; }

.btn-spinner {
  display: none;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(26, 18, 6, 0.35);
  border-top-color: #1a1206;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn[data-busy="1"] .btn-spinner { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }

.send-note { margin: 0; font-size: 12.5px; color: var(--muted); min-height: 18px; }
.send-note[data-tone="ok"] { color: var(--ok); }
.send-note[data-tone="err"] { color: var(--err); }

/* ---------------------------------------------------------------- gateway */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0 0 16px;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.stats > div { padding: 10px 12px; background: var(--ink-soft); }

.stats dt {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.stats dd { margin: 2px 0 0; font-size: 21px; }

.token-row { margin-bottom: 10px; }

.token-box {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.token {
  flex: 1 1 160px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  background: var(--ink-soft);
  font-size: 11.5px;
  color: var(--signal);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hint { margin: 0; font-size: 11.5px; color: var(--muted); }

/* ---------------------------------------------------------------- feed */

.feed { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }

.item {
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line);
  background: var(--ink-soft);
  animation: rise 0.35s ease both;
}

.item[data-status="sent"] { border-left-color: var(--ok); }
.item[data-status="failed"] { border-left-color: var(--err); }
.item[data-status="claimed"] { border-left-color: var(--signal); }

.item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.item-phone { color: var(--text); letter-spacing: 0.04em; }
.item-status { color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; font-size: 10px; }
.item[data-status="sent"] .item-status { color: var(--ok); }
.item[data-status="failed"] .item-status { color: var(--err); }
.item[data-status="claimed"] .item-status { color: var(--signal); }

.item-text {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.item-sub {
  margin: 6px 0 0;
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
}

.item-action {
  margin-top: 8px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.item-action:hover { color: var(--signal); border-color: var(--signal-dim); }

.empty { margin: 4px 0 0; font-size: 12.5px; color: var(--muted); }

.feed-in .item { border-left-color: var(--line); }

/* ---------------------------------------------------------------- setup */

.setup { margin-top: 18px; }

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

.steps li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 12px; align-items: start; }

.step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
  padding-top: 4px;
  letter-spacing: 0.1em;
}

.steps p { margin: 0 0 8px; font-size: 13.5px; }

.code {
  margin: 0 0 8px;
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  background: var(--ink-soft);
  overflow-x: auto;
  font-size: 12px;
  color: #c9d4dc;
  white-space: pre-wrap;
  word-break: break-all;
}

.foot {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 26px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  color: var(--muted);
}

/* ---------------------------------------------------------------- login */

.login-layer {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(8, 11, 14, 0.86);
  backdrop-filter: blur(6px);
}

.login-layer[hidden] { display: none; }

.login-card {
  width: min(420px, 100%);
  padding: 26px 26px 24px;
  animation: rise 0.4s ease both;
}

.login-card h2 {
  margin: 4px 0 8px;
  font-size: 24px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
}

.login-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

.login-sub {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.login-sub code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}

.login-error { min-height: 18px; margin: 10px 0 0; font-size: 12.5px; color: var(--err); }

/* ---------------------------------------------------------------- embedded */

body.embedded { padding: 10px 4px 16px; background: transparent; }
body.embedded .grain, body.embedded .foot, body.embedded .setup, body.embedded .topbar em { display: none; }
body.embedded .topbar { padding-bottom: 10px; }
body.embedded .layout { grid-template-columns: minmax(0, 1fr); margin-top: 12px; gap: 12px; }
body.embedded .panel { padding: 16px; }
body.embedded .panel h1 { font-size: 20px; }
body.embedded .side .panel:nth-child(3) { display: none; }

@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .topbar { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}