:root {
  --bg: #f4efe7;
  --panel: #fff9f0;
  --panel-strong: #fff4e1;
  --line: #e7d6ba;
  --text: #2d2418;
  --muted: #766754;
  --accent: #0f9d58;
  --accent-dark: #0c7d46;
  --soft: #f2dfc2;
  --danger: #c0553d;
  --shadow: 0 18px 40px rgba(66, 44, 16, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 157, 88, 0.15), transparent 35%),
    linear-gradient(180deg, #f8f2e9 0%, #efe1c8 100%);
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 24px auto 48px;
}

.hero-card,
.panel {
  background: rgba(255, 249, 240, 0.92);
  border: 1px solid rgba(231, 214, 186, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--muted);
}

h1,
h2 {
  margin: 0;
}

h1 {
  max-width: 700px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
}

.hero-copy,
.summary-text,
.muted-label {
  color: var(--muted);
}

.hero-copy {
  margin: 14px 0 0;
  max-width: 700px;
  line-height: 1.5;
}

.status-pill-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--soft);
  font-weight: 600;
}

.status-pill.online {
  background: rgba(15, 157, 88, 0.14);
  color: var(--accent-dark);
}

.status-pill.offline {
  background: rgba(192, 85, 61, 0.12);
  color: var(--danger);
}

.status-pill.muted {
  background: rgba(118, 103, 84, 0.12);
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}

.panel {
  padding: 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.action-row {
  display: flex;
  gap: 10px;
}

.qr-shell {
  margin: 18px 0;
  min-height: 260px;
  border-radius: 20px;
  background: var(--panel-strong);
  border: 1px dashed var(--line);
  display: grid;
  place-items: center;
  padding: 20px;
}

#qr-image {
  display: none;
  width: min(100%, 260px);
  height: auto;
  border-radius: 16px;
  background: white;
  padding: 10px;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  line-height: 1.5;
}

.chat-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 520px;
  overflow: auto;
}

.chat-card {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: white;
  border-radius: 18px;
  padding: 14px;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.chat-card:hover,
.chat-card.active {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 12px 24px rgba(15, 157, 88, 0.12);
}

.chat-name {
  font-weight: 700;
}

.chat-meta,
.chat-preview {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.composer-panel {
  margin-top: 20px;
}

.field-label {
  display: block;
  margin: 14px 0 8px;
  font-weight: 600;
}

.text-input,
.text-area {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  background: white;
  color: var(--text);
}

.text-area {
  resize: vertical;
}

.composer-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.primary-btn,
.secondary-btn,
.danger-btn {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.primary-btn {
  background: var(--accent);
  color: white;
}

.primary-btn:hover {
  background: var(--accent-dark);
}

.secondary-btn {
  background: rgba(118, 103, 84, 0.12);
  color: var(--text);
}

.danger-btn {
  background: rgba(192, 85, 61, 0.14);
  color: var(--danger);
}

.danger-btn:hover {
  background: rgba(192, 85, 61, 0.22);
}

.primary-btn:disabled,
.secondary-btn:disabled,
.danger-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 900px) {
  .hero-card,
  .grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .status-pill-wrap {
    align-items: flex-start;
  }
}