*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #09090b; --surface: #131316; --border: #23232a;
  --text: #d4d4d8; --dim: #6b6b76; --muted: #3a3a42;
  --accent: #3b82f6; --green: #22c55e; --amber: #eab308; --red: #ef4444; --purple: #a855f7;
  --font: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Menlo', monospace;
  --r: 8px;
}

body { background: var(--bg); color: var(--text); font: 12px/1.6 var(--font); }

/* ── Header ── */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg); z-index: 10;
}
header h1 { font-size: 13px; font-weight: 600; letter-spacing: 2px; }
header h1 span { color: var(--dim); font-weight: 400; }
.header-right { display: flex; align-items: center; gap: 10px; }
#conn-status { color: var(--dim); font-size: 11px; }

/* ── Cloud status ── */
.cloud-status {
  font-size: 10px; padding: 2px 8px; border-radius: 10px;
  border: 1px solid var(--border);
}
.cloud-idle { color: var(--dim); }
.cloud-syncing { color: var(--amber); border-color: rgba(234,179,8,.3); }
.cloud-ok { color: var(--green); border-color: rgba(34,197,94,.3); }
.cloud-error { color: var(--red); border-color: rgba(239,68,68,.3); }

/* ── LED ── */
.led {
  width: 8px; height: 8px; border-radius: 50%; background: var(--muted);
  display: inline-block; flex-shrink: 0;
}
.led.green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.led.amber { background: var(--amber); animation: pulse 1.5s ease infinite; }
.led.red { background: var(--red); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

/* ── Layout ── */
main { padding: 16px 20px; display: flex; flex-direction: column; gap: 12px; max-width: 1100px; margin: 0 auto; }
.row-split { display: grid; grid-template-columns: 340px 1fr; gap: 12px; }
@media (max-width: 800px) { .row-split { grid-template-columns: 1fr; } }

/* ── Cards ── */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r);
  padding: 14px 16px; transition: border-color .3s;
}
.card.provisioned { border-color: var(--green); box-shadow: 0 0 24px rgba(34,197,94,.1); }
.card.new-device { border-color: var(--amber); box-shadow: 0 0 16px rgba(234,179,8,.06); }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.card-head h2 { font-size: 10px; font-weight: 600; letter-spacing: 1.5px; color: var(--dim); text-transform: uppercase; }
.badge { background: var(--border); color: var(--dim); font-size: 10px; padding: 1px 6px; border-radius: 10px; margin-left: 6px; }

/* ── Provisioned banner strip ── */
.dev-banner {
  background: linear-gradient(135deg, rgba(34,197,94,.10), rgba(34,197,94,.04));
  border: 1px solid rgba(34,197,94,.4); border-radius: 8px;
  padding: 12px 14px; margin-bottom: 14px;
}
.dev-banner-head { margin-bottom: 10px; }
.dev-banner-label {
  font-size: 9px; font-weight: 700; letter-spacing: 3px; color: var(--green);
}
.dev-banner-strip {
  display: flex; align-items: stretch;
  background: rgba(0,0,0,.3); border-radius: 6px; overflow: hidden;
}
.strip-cell { padding: 8px 14px; display: flex; flex-direction: column; gap: 2px; }
.strip-cell-grow { flex: 1; min-width: 0; }
.strip-sep { width: 1px; background: var(--border); flex-shrink: 0; }
.strip-label { font-size: 8px; font-weight: 600; letter-spacing: 2px; color: var(--muted); }
.strip-val { font-family: var(--font); color: var(--text); word-break: break-all; }
.strip-code { font-size: 20px; font-weight: 700; letter-spacing: 6px; color: var(--green); line-height: 1.1; }
.strip-devid { font-size: 15px; font-weight: 600; color: #fff; line-height: 1.2; }
.strip-mac { font-size: 13px; color: var(--dim); line-height: 1.2; padding-top: 4px; }

.dev-banner.unsaved {
  background: linear-gradient(135deg, rgba(234,179,8,.10), rgba(234,179,8,.04));
  border-color: rgba(234,179,8,.4);
}
.dev-banner.unsaved .dev-banner-label { color: var(--amber); }
.dev-banner.unsaved .strip-code { color: var(--amber); }

/* New device banner */
.dev-new-banner {
  background: linear-gradient(135deg, rgba(234,179,8,.1), rgba(234,179,8,.04));
  border: 1px solid rgba(234,179,8,.3); border-radius: 6px;
  padding: 8px 14px; margin-bottom: 14px;
  font-size: 10px; font-weight: 600; letter-spacing: 1.5px;
  color: var(--amber); text-transform: uppercase;
}

/* ── Provision row: code + save ── */
.provision-row {
  display: flex; align-items: stretch; gap: 10px; margin-bottom: 4px;
}
#in-code {
  font: 22px/1 var(--font); letter-spacing: 6px; text-align: center; text-transform: uppercase;
  width: 190px; padding: 8px 12px; background: var(--bg); border: 2px solid var(--border);
  border-radius: var(--r); color: var(--text); outline: none; transition: border-color .2s;
}
#in-code:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.12); }
#in-code.valid { border-color: var(--green); }
#in-code.dup-saved { border-color: var(--green); background: rgba(34,197,94,.08); color: var(--green); }
#in-code.dup-conflict { border-color: var(--red); background: rgba(239,68,68,.08); color: var(--red); animation: pulse .8s ease infinite; }

.btn-save {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; font: 12px/1 var(--font); font-weight: 700; letter-spacing: 2px;
  background: var(--accent); border: 2px solid var(--accent); color: #fff;
  border-radius: var(--r); cursor: pointer; transition: all .15s; text-transform: uppercase;
}
.btn-copy {
  display: flex; align-items: center; justify-content: center;
  width: 42px; background: var(--bg); border: 2px solid var(--border);
  border-radius: var(--r); color: var(--dim); cursor: pointer; transition: all .15s;
}
.btn-copy:hover { border-color: var(--accent); color: var(--text); }
.btn-copy:disabled { opacity: .2; cursor: default; pointer-events: none; }
.btn-copy.copied { border-color: var(--green); color: var(--green); }
.btn-copy i { font-size: 16px; }
.btn-save:hover { background: #2563eb; }
.btn-save:active { transform: scale(.98); }
.btn-save:disabled { opacity: .2; cursor: default; pointer-events: none; }
.btn-save i { font-size: 15px; }
.btn-save.saved {
  background: var(--green); border-color: var(--green);
}

.save-msg { font-size: 10px; color: var(--dim); min-height: 14px; margin-bottom: 8px; }
.save-msg:empty { margin-bottom: 4px; }
.save-msg.msg-saved { color: var(--green); font-weight: 600; }
.save-msg.msg-conflict { color: var(--red); font-weight: 600; }

/* ── Action row ── */
.action-row {
  display: flex; gap: 10px; margin-bottom: 10px;
}
.btn-action {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 14px; font: 11px/1 var(--font); font-weight: 600; letter-spacing: 1.5px;
  border-radius: var(--r); cursor: pointer; transition: all .15s; text-transform: uppercase;
}
.btn-action:disabled { opacity: .2; cursor: default; pointer-events: none; }
.btn-action i { font-size: 16px; }
.btn-action-qc {
  background: rgba(34,197,94,.08); border: 1px solid rgba(34,197,94,.3); color: var(--green);
}
.btn-action-qc:hover { background: rgba(34,197,94,.15); }
.btn-action-qc.running { animation: pulse 1s ease infinite; }
.btn-action-off {
  background: rgba(239,68,68,.06); border: 1px solid rgba(239,68,68,.25); color: var(--red);
}
.btn-action-off:hover { background: rgba(239,68,68,.12); }

/* ── Device info fields ── */
.dev-fields {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px 16px;
  padding-top: 10px; border-top: 1px solid var(--border);
}
.dev-f { display: flex; align-items: center; gap: 6px; padding: 4px 0; }
.dev-f i { font-size: 12px; color: var(--muted); flex-shrink: 0; }
.dev-f label { font-size: 8px; letter-spacing: 1px; color: var(--muted); text-transform: uppercase; white-space: nowrap; min-width: 36px; }
.dev-f span { font-size: 11px; color: var(--text); margin-left: auto; text-align: right; word-break: break-all; }
@media (max-width: 800px) { .dev-fields { grid-template-columns: repeat(2, 1fr); } }
.dev-f span.idle { color: var(--dim); }
.dev-f span.pairing { color: var(--amber); }
.dev-f span.active { color: var(--green); }
.dev-f span.poweroff { color: var(--red); }
.dev-f span.dirty { color: var(--purple); }

/* ── Buttons ── */
button {
  font: 11px var(--font); cursor: pointer; border: 1px solid var(--border);
  background: transparent; color: var(--text); border-radius: var(--r);
  padding: 5px 12px; transition: all .15s;
}
button:hover { background: var(--border); }
button:active { transform: scale(.97); }
button:disabled { opacity: .3; cursor: default; pointer-events: none; }
.btn-sm { padding: 4px 10px; font-size: 10px; display: inline-flex; align-items: center; gap: 4px; }
.btn-sm i { font-size: 12px; }

/* ── Registry ── */
.card-reg { min-width: 0; }
.reg-file-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 6px 10px; border-radius: 6px; margin-bottom: 8px;
  background: var(--bg); border: 1px dashed var(--border);
}
.reg-file-bar.no-file { border-color: var(--amber); }
.reg-file-bar.has-file { border-color: var(--green); border-style: solid; }
.reg-file-label { font-size: 8px; font-weight: 600; letter-spacing: 1.5px; color: var(--muted); }
.no-file .reg-file-label { color: var(--amber); }
.has-file .reg-file-label { color: var(--green); }
.reg-file-name { font-size: 10px; color: var(--dim); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.has-file .reg-file-name { color: var(--text); }
.reg-file-actions { display: flex; gap: 4px; }
#reg-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 10px; }
th { text-align: left; font-size: 8px; letter-spacing: 1px; color: var(--muted); text-transform: uppercase;
     padding: 3px 6px; border-bottom: 1px solid var(--border); font-weight: 500; }
td { padding: 4px 6px; border-bottom: 1px solid rgba(35,35,42,.5); vertical-align: middle; }
tr:hover td { background: rgba(59,130,246,.03); }
.btn-x { border: none; background: none; color: var(--muted); font-size: 13px; padding: 0 3px; }
.btn-x:hover { color: var(--red); background: none; }
#reg-wrap { max-height: 300px; overflow-y: auto; }
tr.hl-saved { background: rgba(34,197,94,.1) !important; }
tr.hl-saved td:first-child { color: var(--green); }
tr.hl-conflict { background: rgba(239,68,68,.1) !important; }
tr.hl-conflict td:first-child { color: var(--red); }
#reg-empty { color: var(--muted); font-size: 10px; padding: 16px; text-align: center; }

/* ── Command panel ── */
.card-cmd { min-width: 0; }
.cmd-group { margin-bottom: 14px; }
.cmd-group-label {
  display: block; font-size: 8px; font-weight: 600; letter-spacing: 2px;
  color: var(--muted); text-transform: uppercase; margin-bottom: 6px;
  padding-bottom: 4px; border-bottom: 1px solid var(--border);
}
.cmd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.cmd-grid button {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 12px; font-size: 11px; font-weight: 500;
}
.cmd-grid button i { font-size: 14px; }
.cmd-grid button.warn { color: var(--red); border-color: rgba(239,68,68,.3); }
.cmd-grid button.warn:hover { background: rgba(239,68,68,.1); }
.cmd-custom { display: flex; gap: 6px; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.cmd-custom input {
  flex: 1; font: 11px var(--font); padding: 7px 10px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--r); color: var(--text); outline: none;
  min-width: 0;
}
.cmd-custom input:focus { border-color: var(--accent); }

/* ── Log ── */
.log-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
#log {
  height: 140px; overflow-y: auto; font-size: 11px; line-height: 1.5;
  background: var(--bg); border-radius: 4px; padding: 6px 8px;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.log-tx { color: var(--accent); }
.log-rx { color: var(--dim); }
.log-info { color: var(--green); }
.log-err { color: var(--red); }
.log-ts { color: var(--muted); margin-right: 6px; user-select: none; }