:root {
  --bg: #0f1412;
  --panel: #18201c;
  --ink: #e8f0ea;
  --muted: #8fa398;
  --accent: #2f9e6b;
  --accent-ink: #04140c;
  --danger: #c45c4a;
  --line: #2a3830;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
  --display: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, #1d3a2c 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, #243028 0%, transparent 45%),
    var(--bg);
  color: var(--ink);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

.muted { color: var(--muted); }
.error { color: var(--danger); margin-top: 0.75rem; }

.gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}
.gate-card {
  width: min(420px, 100%);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--line);
  padding: 2rem;
}
.brand {
  font-family: var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}
.gate-card h1 { margin: 0 0 0.5rem; font-size: 1.6rem; font-weight: 600; }
.gate-card label { display: block; margin: 1.25rem 0 0.4rem; font-size: 0.85rem; color: var(--muted); }
.gate-card input, .send-form input, select, button {
  font: inherit;
}
.gate-card input, .send-form input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  background: #0c110f;
  color: var(--ink);
}
button {
  margin-top: 1rem;
  padding: 0.65rem 1rem;
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  cursor: pointer;
}
button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(8px);
}
.topbar-brand { display: flex; gap: 0.75rem; align-items: baseline; }
.topbar-controls { display: flex; gap: 0.6rem; align-items: center; }
.topbar-controls button { margin-top: 0; }
select {
  min-width: 240px;
  padding: 0.55rem 0.7rem;
  background: #0c110f;
  color: var(--ink);
  border: 1px solid var(--line);
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  min-height: calc(100vh - 58px);
}
.panel { padding: 1.1rem 1.2rem; }
.slots-panel { border-right: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 55%, transparent); }
.slots-panel h2, .inbox-toolbar h2 { margin: 0 0 0.85rem; font-size: 0.95rem; font-weight: 600; letter-spacing: 0.02em; }

.summarize-bar {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}
.summarize-bar__label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
}
.summarize-bar select {
  min-width: 0;
  width: 100%;
  margin: 0;
}

.sum-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.sum-modal[hidden] { display: none !important; }
.sum-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 10, 8, 0.72);
  backdrop-filter: blur(3px);
}
.sum-modal__dialog {
  position: relative;
  width: min(640px, 100%);
  max-height: min(86vh, 760px);
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.15rem 1.25rem 1.35rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.sum-modal__header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}
.sum-modal__header h3 { margin: 0 0 0.25rem; font-size: 1.15rem; }
.sum-modal__close { margin-top: 0; }
.sum-modal__status {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.sum-modal__focus-label {
  display: block;
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
  font-weight: 600;
}
.sum-modal textarea {
  width: 100%;
  resize: vertical;
  min-height: 72px;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  background: #0c110f;
  color: var(--ink);
  font: inherit;
}
.sum-modal__hint { font-size: 0.78rem; margin: 0.45rem 0 0.9rem; }
.sum-modal__result {
  font-size: 0.92rem;
  line-height: 1.55;
  white-space: pre-wrap;
}
.sum-modal__result h2, .sum-modal__result h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1rem;
}
.sum-modal__result ul { margin: 0.35rem 0 0.6rem; padding-left: 1.2rem; }
.sum-modal__result p { margin: 0.35rem 0; }

.slot-card {
  border: 1px solid var(--line);
  padding: 0.75rem;
  margin-bottom: 0.55rem;
  cursor: pointer;
  background: #101612;
}
.slot-card.active { border-color: var(--accent); }
.add-op-btn { width: 100%; margin-top: 0.75rem; }
.slot-card .label { font-weight: 600; font-size: 0.92rem; }
.slot-card .meta { font-size: 0.78rem; color: var(--muted); margin-top: 0.25rem; }
.badge {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 0.7rem;
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--line);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge.ready { border-color: var(--accent); color: var(--accent); }
.badge.qr, .badge.connecting, .badge.authenticated { border-color: #c9a227; color: #e6c35c; }
.badge.error, .badge.disconnected { border-color: var(--danger); color: var(--danger); }
.api-meta { font-size: 0.72rem; margin-top: 0.35rem; word-break: break-all; }
.api-meta code { font-size: 0.7rem; }
.api-key-box {
  margin: 0.75rem 0;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--line);
  background: #101612;
}
.api-key-out {
  margin: 0.5rem 0;
  padding: 0.75rem;
  background: #0c110f;
  border: 1px solid var(--line);
  font-size: 0.75rem;
  overflow: auto;
  white-space: pre-wrap;
  color: var(--ink);
}

.inbox-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.actions { display: flex; gap: 0.45rem; flex-wrap: wrap; }
.actions button { margin-top: 0; }

.qr-box {
  margin: 0.75rem 0;
  padding: 1rem;
  border: 1px dashed var(--line);
  display: grid;
  justify-items: start;
  gap: 0.5rem;
}
.qr-box img { width: 220px; height: 220px; background: #fff; padding: 8px; }

.status-line { color: var(--muted); font-size: 0.85rem; min-height: 1.2em; }

.chat-split {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0.75rem;
  min-height: 60vh;
  margin-top: 0.5rem;
}
.chat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  overflow: auto;
  max-height: 70vh;
}
.chat-list li {
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.chat-list li.active, .chat-list li:hover { background: #152019; }
.thread {
  display: grid;
  grid-template-rows: 1fr auto;
  border: 1px solid var(--line);
  min-height: 60vh;
}
.messages {
  overflow: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.bubble {
  max-width: 75%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  background: #121a16;
  font-size: 0.92rem;
  white-space: pre-wrap;
}
.bubble.me { align-self: flex-end; background: #1a3328; border-color: #2f5a44; }
.send-form {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.5rem;
  padding: 0.65rem;
  border-top: 1px solid var(--line);
}
.send-form button { margin-top: 0; }

@media (max-width: 900px) {
  .layout, .chat-split { grid-template-columns: 1fr; }
  .slots-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  select { min-width: 160px; }
}