:root {
  --ink: #0d0e0a;
  --ink-2: #16170f;
  --paper: #e7dcc0;
  --paper-dim: #b7ad94;
  --amber: #e8a317;
  --amber-2: #ffc44d;
  --signal: #9bff6b;
  --warn: #ff5a36;
  --line: #2c2a22;
  --line-2: #3d3a2e;
  --mute: #6e6958;
  --glass: rgba(14, 15, 11, 0.86);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  overflow: hidden;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hidden { display: none !important; }

.app {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 100%;
  position: relative;
}

.rack {
  background:
    linear-gradient(180deg, rgba(232,163,23,0.05), transparent 180px),
    var(--ink-2);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 22px 18px 18px;
  border-bottom: 1px solid var(--line);
}
.brand-mark {
  width: 36px;
  height: 36px;
  border: 1px solid var(--amber);
  color: var(--amber);
  display: grid;
  place-items: center;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.brand-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-2);
}
.brand-sub {
  color: var(--mute);
  font-size: 11px;
  margin-top: 2px;
}

.rack-section {
  padding: 14px 10px 6px;
  min-height: 0;
  overflow: auto;
}
.section-h {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--mute);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 4px 8px 10px;
}

.station-list, .thread-list { display: flex; flex-direction: column; gap: 4px; }

.station, .thread {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font: inherit;
  width: 100%;
}
.station:hover, .thread:hover { background: rgba(232,163,23,0.05); }
.station.active, .thread.active {
  border-color: var(--line-2);
  background: rgba(232,163,23,0.08);
}
.station .name, .thread .name {
  font-size: 13px;
  color: var(--paper);
}
.station .role, .thread .preview {
  color: var(--mute);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}
.callsign {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--amber);
}
.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3a382c;
  box-shadow: none;
}
.led.on {
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal);
}
.led.work {
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
  animation: pulse 1.1s ease-in-out infinite;
}
.led.bad { background: var(--warn); box-shadow: 0 0 8px var(--warn); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.rack-foot {
  margin-top: auto;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.desk {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background:
    radial-gradient(1200px 400px at 20% -10%, rgba(232,163,23,0.07), transparent 50%),
    var(--ink);
}
.desk-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px 14px;
  border-bottom: 1px solid var(--line);
}
.freq {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.freq-sub { color: var(--mute); margin-top: 4px; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.desk-actions { display: flex; gap: 8px; }

.log {
  flex: 1;
  overflow: auto;
  padding: 22px 28px 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.entry {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  max-width: 860px;
}
.entry .when {
  color: var(--mute);
  font-size: 11px;
  padding-top: 6px;
}
.who {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 6px;
}
.who.you { color: var(--paper-dim); }
.who.sys { color: var(--mute); }
.body {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.45;
  color: var(--paper);
  white-space: pre-wrap;
  word-break: break-word;
}
.body p { margin: 0 0 0.7em; }
.body p:last-child { margin: 0; }
.body code, .body pre {
  font-family: var(--mono);
  font-size: 12.5px;
}
.body pre {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 10px 12px;
  overflow: auto;
}
.body a { color: var(--amber-2); }

.tools {
  margin-top: 10px;
  border-left: 1px solid var(--line-2);
  padding-left: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tool {
  color: var(--mute);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.tool b { color: var(--paper-dim); font-weight: 500; }
.draft .body { opacity: 0.92; }
.thinking {
  color: var(--mute);
  font-style: italic;
  font-size: 13px;
  margin-top: 6px;
}

.empty {
  margin: auto;
  text-align: center;
  color: var(--mute);
  max-width: 360px;
}
.empty h2 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--paper);
  font-size: 28px;
  margin: 0 0 8px;
}

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.18));
}
.composer textarea {
  resize: none;
  min-height: 44px;
  max-height: 180px;
  background: var(--ink-2);
  color: var(--paper);
  border: 1px solid var(--line-2);
  padding: 12px 14px;
  font: inherit;
  outline: none;
}
.composer textarea:focus { border-color: var(--amber); }
.composer button, .gate-card button, .modal-card button.primary {
  background: var(--amber);
  color: #1a1203;
  border: 0;
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0 18px;
  cursor: pointer;
}
.composer button:hover, .gate-card button:hover { background: var(--amber-2); }

.icon-btn, .text-btn {
  background: none;
  border: 1px solid var(--line-2);
  color: var(--paper-dim);
  font: inherit;
  cursor: pointer;
}
.icon-btn {
  width: 24px;
  height: 24px;
  padding: 0;
}
.text-btn {
  padding: 6px 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
}
.icon-btn:hover, .text-btn:hover { border-color: var(--amber); color: var(--amber); }

.gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--ink);
  z-index: 20;
}
.gate-card, .modal-card {
  width: min(480px, calc(100vw - 32px));
  background: var(--ink-2);
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow);
  padding: 28px;
}
.eyebrow {
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
  font-size: 10px;
  margin: 0 0 10px;
}
.gate-card h1, .modal-card h2 {
  font-family: var(--serif);
  font-weight: 500;
  margin: 0 0 8px;
  font-size: 30px;
}
.lede { color: var(--paper-dim); margin: 0 0 18px; line-height: 1.45; }
.gate-card form { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
input, select, textarea.field {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--line-2);
  padding: 10px 12px;
  font: inherit;
  width: 100%;
}
label.field-l {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--mute);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.err { color: var(--warn); min-height: 1.2em; }
.form-grid { display: grid; gap: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: grid;
  place-items: center;
  z-index: 30;
  padding: 20px;
}
.modal-card { max-height: calc(100vh - 40px); overflow: auto; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.check-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.check-list label {
  border: 1px solid var(--line-2);
  padding: 6px 10px;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.check-list input { accent-color: var(--amber); }

@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .rack { display: none; }
  .entry { grid-template-columns: 1fr; gap: 4px; }
}