:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --primary: #0f172a;
  --primary-text: #ffffff;
  --secondary: #e2e8f0;
  --danger: #dc2626;
  --text: #1e293b;
  --muted: #64748b;
  --border: #cbd5e1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px;
}

header {
  margin-bottom: 24px;
}

header h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

header p {
  margin: 0;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.caller-info {
  display: grid;
  gap: 16px;
  margin-bottom: 20px;
}

.caller-info label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--muted);
}

.caller-info input,
.caller-info select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

button {
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  font-size: 0.9375rem;
  cursor: pointer;
}

button.primary {
  background: var(--primary);
  color: var(--primary-text);
}

button.secondary {
  background: var(--secondary);
  color: var(--text);
}

button.danger {
  background: var(--danger);
  color: var(--primary-text);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.chat-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

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

.messages {
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 300px;
  max-height: 400px;
  overflow-y: auto;
  padding: 16px;
  margin-bottom: 16px;
  background: var(--bg);
}

.message {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: 12px;
  margin-bottom: 12px;
}

.message .sender {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 4px;
}

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

.message p {
  margin: 0 0 6px;
}

.message time {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
}

.message .read-receipt {
  display: block;
  font-size: 0.7rem;
  margin-top: 4px;
  opacity: 0.85;
}

.message.company .read-receipt {
  color: var(--primary-text);
}

.message.company {
  margin-left: auto;
  background: var(--primary);
  color: var(--primary-text);
}

.message.contact {
  margin-right: auto;
  background: var(--secondary);
  color: var(--text);
}

.message.system {
  margin: 0 auto;
  background: #fef3c7;
  color: #92400e;
  text-align: center;
}

.send-form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.send-form input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

.media-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.media-bar button {
  padding: 8px 14px;
  font-size: 0.875rem;
}

.recording-status {
  font-size: 0.875rem;
  color: var(--danger);
}

.media-attachment {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
}

.media-open {
  font-size: 0.8125rem;
}

.media-meta {
  font-size: 0.75rem;
  color: var(--muted);
}

.media-inline {
  max-width: 100%;
  max-height: 240px;
  border-radius: 8px;
}

.offload-info {
  margin-top: 16px;
  padding: 12px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
}

.offload-info p {
  margin: 0 0 8px;
  font-size: 0.875rem;
}

.offload-info input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 8px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  font-size: 0.9375rem;
  word-break: break-all;
}

.offload-info .copy-confirmation {
  font-size: 0.875rem;
  color: #16a34a;
  margin-left: 8px;
}

.secure-status {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 0.875rem;
}

.secure-status.waiting {
  background: #fef3c7;
  border: 1px solid #fde68a;
  color: #92400e;
}

.secure-status.active {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.hidden {
  display: none !important;
}