:root {
  --bg: #0b0b0c;
  --bg-elevated: #151517;
  --text: #f2f2f0;
  --text-muted: #9a9a95;
  --border: #242426;
  --accent: #6ea8fe;
  --accent-text: #0b0b0c;
  --error: #ff8a80;
  --ok: #8adf9e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text-muted);
}

.chat-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 0 0 40px;
}

.empty-state {
  max-width: 640px;
  margin: 14vh auto 0;
  padding: 0 24px;
  text-align: center;
}

.empty-state h1 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.message-list {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.msg { line-height: 1.6; font-size: 15px; white-space: pre-wrap; }
.msg-role {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.msg.user .msg-role { color: var(--accent); }
.msg.error { color: var(--error); }

.tool-trace {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  padding-left: 10px;
}
.tool-trace div { margin-bottom: 3px; }

/* ---------- Proposed order card ---------- */
.order-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elevated);
  padding: 18px 20px;
  margin-top: 8px;
}

.order-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.order-card-badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.order-card label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.order-card input, .order-card textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 9px;
  font-size: 13px;
  font-family: inherit;
}

.order-card .field-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 14px;
}

.order-card .field-grid {
  overflow-x: auto;
}

.order-card table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
}

.order-card th, .order-card td {
  text-align: left;
  font-size: 12px;
  padding: 5px 4px;
  border-bottom: 1px solid var(--border);
}

.order-card th { color: var(--text-muted); font-weight: 500; }

.order-card-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.order-card-result {
  margin-top: 12px;
  font-size: 13px;
}
.order-card-result.ok { color: var(--ok); }
.order-card-result.error { color: var(--error); }

/* ---------- Composer ---------- */
.composer {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto 24px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.composer-input, #composer-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 15px;
  padding: 8px 0;
}

#composer-input::placeholder { color: var(--text-muted); }

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 6px;
  border-radius: 8px;
}

.icon-btn.voice-active {
  color: var(--accent);
  background: rgba(110, 168, 254, 0.12);
}

.icon-btn.recording {
  color: var(--error);
  animation: pulse 1.1s ease-in-out infinite;
}

.icon-btn.speaking {
  color: var(--ok);
  animation: pulse 0.7s ease-in-out infinite;
}

.icon-btn.thinking {
  color: var(--accent);
  animation: pulse 0.5s linear infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.icon-btn:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.attached-filename {
  font-size: 12px;
  color: var(--accent);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.send-btn {
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.send-btn:disabled { opacity: 0.5; cursor: default; }

button {
  font-family: inherit;
}

button.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 7px;
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
}

button.primary {
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 7px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ---------- Sign-in ---------- */
.session-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}

.login-screen {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 10vh 16px 40px;
  background: var(--bg);
}

.login-screen[hidden] { display: none; }

.login-form {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-form h1 {
  font-size: 28px;
  margin: 0;
}

.login-note,
.login-detected {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
}

.login-detected { overflow-wrap: anywhere; }

.login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.login-form label[hidden] { display: none; }

.login-form input {
  padding: 10px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  font-size: 15px;
}

.login-form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.login-error {
  margin: 0;
  font-size: 14px;
  color: var(--error);
}

.login-form .send-btn { align-self: flex-start; }