* {
  box-sizing: border-box;
}

:root {
  --bg: #040706;
  --panel: rgba(3, 12, 6, 0.9);
  --panel-border: rgba(139, 255, 106, 0.34);
  --text: #b8ff9f;
  --text-soft: rgba(184, 255, 159, 0.75);
  --accent: #8bff6a;
  --accent-soft: rgba(72, 255, 86, 0.12);
  --warn: #ffba96;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 50% 0%, rgba(72, 255, 86, 0.08), transparent 30%),
    linear-gradient(180deg, #010302 0%, #050a06 100%);
  color: var(--text);
  font-family: monospace;
}

body {
  padding: 22px;
}

.admin-shell {
  max-width: 1600px;
  margin: 0 auto;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 24px;
}

.admin-kicker {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: rgba(139, 255, 106, 0.72);
}

.admin-title {
  margin: 8px 0 10px;
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: 0.14em;
  line-height: 0.95;
  text-shadow: 0 0 18px rgba(72, 255, 86, 0.22);
}

.admin-copy {
  max-width: 720px;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}

.admin-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-link,
button,
input,
textarea {
  font: inherit;
}

.admin-link,
button {
  border: 1px solid rgba(139, 255, 106, 0.45);
  background: rgba(0, 0, 0, 0.72);
  color: rgba(139, 255, 106, 0.94);
  text-decoration: none;
  padding: 10px 14px 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  box-shadow:
    0 0 0 1px rgba(72, 255, 86, 0.08) inset,
    0 0 16px rgba(72, 255, 86, 0.12);
  cursor: pointer;
}

.admin-link:hover,
.admin-link:focus-visible,
button:hover,
button:focus-visible {
  outline: none;
  border-color: rgba(139, 255, 106, 0.82);
  color: #d6ffc9;
}

.admin-link--button {
  display: none;
}

.admin-link--button.is-visible {
  display: inline-block;
}

.login-card,
.panel,
.stat-card {
  border: 1px solid var(--panel-border);
  background:
    linear-gradient(180deg, rgba(72, 255, 86, 0.03), rgba(72, 255, 86, 0.01)),
    var(--panel);
  box-shadow:
    0 0 0 1px rgba(72, 255, 86, 0.08) inset,
    0 0 28px rgba(72, 255, 86, 0.08);
}

.login-card {
  max-width: 520px;
  padding: 24px;
}

.login-card h2,
.panel h2 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: 0.08em;
}

.login-card p,
.panel-head p,
.form-note,
.meta-line,
.empty-state {
  color: var(--text-soft);
}

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

label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(139, 255, 106, 0.36);
  background: rgba(0, 0, 0, 0.78);
  color: var(--text);
  padding: 12px;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(139, 255, 106, 0.82);
  box-shadow: 0 0 0 1px rgba(72, 255, 86, 0.16) inset;
}

textarea {
  resize: vertical;
  min-height: 220px;
}

.dashboard.is-hidden,
.login-card.is-hidden {
  display: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.stat-card {
  padding: 18px;
}

.stat-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.stat-value {
  display: block;
  margin-top: 10px;
  font-size: clamp(30px, 4vw, 42px);
  letter-spacing: 0.08em;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 14px;
}

.panel {
  min-height: 220px;
  padding: 18px;
}

.panel--profile,
.panel--messages {
  grid-column: span 2;
}

.panel-head {
  margin-bottom: 14px;
}

.panel-head p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
}

.user-list,
.conversation-list,
.message-feed {
  display: grid;
  gap: 10px;
}

.user-card,
.conversation-card,
.message-card {
  border: 1px solid rgba(139, 255, 106, 0.24);
  background: rgba(0, 0, 0, 0.48);
  padding: 14px;
}

.user-card,
.conversation-card {
  cursor: pointer;
}

.user-card.is-active,
.conversation-card.is-active {
  border-color: rgba(139, 255, 106, 0.76);
  box-shadow: 0 0 0 1px rgba(72, 255, 86, 0.12) inset;
}

.user-card-title,
.conversation-card-title {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: 0.05em;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
  margin-top: 10px;
}

.meta-line {
  font-size: 12px;
  line-height: 1.45;
}

.message-card--user {
  border-color: rgba(139, 255, 106, 0.42);
}

.message-card--assistant {
  border-color: rgba(85, 191, 255, 0.36);
}

.message-role {
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.message-content {
  white-space: pre-wrap;
  line-height: 1.55;
  font-size: 14px;
}

.message-time {
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-soft);
}

.form-note {
  min-height: 20px;
  font-size: 12px;
  line-height: 1.5;
}

.form-note.is-error {
  color: var(--warn);
}

.empty-state {
  border: 1px dashed rgba(139, 255, 106, 0.2);
  padding: 16px;
  font-size: 13px;
}

@media (max-width: 1180px) {
  .admin-grid {
    grid-template-columns: 1fr 1fr;
  }

  .panel--profile,
  .panel--messages {
    grid-column: span 2;
  }
}

@media (max-width: 760px) {
  body {
    padding: 14px;
  }

  .admin-header {
    flex-direction: column;
  }

  .stats-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .panel--profile,
  .panel--messages {
    grid-column: span 1;
  }
}