:root {
  color-scheme: dark;
  --bg: #070a0f;
  --panel: #111824;
  --panel-soft: #0d131d;
  --text: #eef3ff;
  --muted: #95a1bd;
  --line: #26314a;
  --accent: #31d0aa;
  --danger: #ff7a8a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1000px 600px at 20% -10%, rgba(49, 208, 170, 0.16), transparent 60%),
    radial-gradient(900px 700px at 120% 20%, rgba(80, 130, 255, 0.14), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    sans-serif;
}

.auth-page {
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(440px, 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 60%), var(--panel);
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin: 16px 0;
}

.tab-btn {
  flex: 1;
}

.tab-btn.active {
  background: var(--accent);
  color: #04231f;
  border-color: var(--accent);
}

.auth-form,
.memory-form,
.turn-form,
.content-form,
.password-form {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
}

input,
textarea,
select,
button {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #0a111a;
  color: var(--text);
}

button {
  cursor: pointer;
  background: #122235;
}

button:hover {
  border-color: #3b4c6f;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 12, 19, 0.85);
  position: sticky;
  top: 0;
}

.topbar h1 {
  margin: 0;
}

.top-actions {
  display: flex;
  gap: 8px;
}

.layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 16px;
  padding: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-soft);
  padding: 12px;
  min-height: 65vh;
}

.panel h2 {
  margin-top: 0;
}

.messages {
  border: 1px solid var(--line);
  border-radius: 12px;
  height: min(65vh, 650px);
  overflow: auto;
  padding: 10px;
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
}

.message {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
}

.message.user {
  border-color: rgba(49, 208, 170, 0.4);
}

.message.assistant {
  border-color: rgba(80, 130, 255, 0.4);
}

.message-meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.message-body {
  margin: 0;
  white-space: pre-wrap;
}

.memory-list {
  display: grid;
  gap: 8px;
  max-height: 300px;
  overflow: auto;
  margin-bottom: 12px;
}

.memory-card {
  text-align: left;
  display: grid;
  gap: 3px;
}

.memory-card.active {
  border-color: var(--accent);
}

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

.error {
  color: var(--danger);
  margin: 10px 0 0;
}

.password-section {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.password-form {
  display: grid;
  gap: 10px;
}

.content-toolbar {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-label input {
  width: auto;
  padding: 0;
}

.content-list {
  display: grid;
  gap: 8px;
  max-height: 260px;
  overflow: auto;
  margin-bottom: 12px;
}

.content-card {
  text-align: left;
  display: grid;
  gap: 3px;
}

.content-card.active {
  border-color: var(--accent);
}

.content-actions {
  display: flex;
  gap: 8px;
}

.danger {
  background: #3a1620;
  border-color: #6b2435;
}

.hidden {
  display: none;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .panel {
    min-height: auto;
  }

  .messages {
    height: 50vh;
  }
}