:root {
  --bg: #f7f4ee;
  --surface: #ffffff;
  --surface-alt: #fbf9f5;
  --border: #e4ded3;
  --text: #1b1814;
  --muted: #6a5f55;
  --accent: #203652;
  --accent-soft: #e5ebf2;
  --user: #203652;
  --assistant: #ffffff;
  --shadow: 0 20px 48px rgba(28, 22, 16, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "General Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #ffffff 0%, #f7f4ee 55%, #efe8de 100%);
  min-height: 100vh;
}

a {
  color: inherit;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.4px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 36px 24px 120px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.signup-title {
  font-family: "Fraunces", serif;
  font-size: 30px;
  margin: 0 0 12px;
}

.signup-subtitle {
  color: var(--muted);
  margin-bottom: 24px;
}

.input-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

input[type="text"],
textarea {
  font-family: "General Sans", "Segoe UI", sans-serif;
  font-size: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  flex: 1;
  outline: none;
}

input[type="text"]:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 77, 122, 0.15);
}

button {
  font-family: "General Sans", "Segoe UI", sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 18px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(31, 77, 122, 0.2);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.chat {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.message {
  max-width: 80%;
  padding: 14px 16px;
  border-radius: 16px;
  line-height: 1.5;
  white-space: pre-wrap;
  animation: fadeUp 0.3s ease;
}

.message p {
  margin: 0 0 4px 0;
}

.message p:last-child {
  margin-bottom: 0;
}

.message h3 {
  margin: 0 0 6px 0;
  font-family: "Fraunces", serif;
}

.message ul {
  margin: 2px 0 0 18px;
  padding: 0;
}

.message li {
  margin: 0;
  padding: 0;
}

.message p + ul {
  margin-top: 0;
}

.message table {
  width: 100%;
  border-collapse: collapse;
  margin: 6px 0;
}

.message th,
.message td {
  text-align: left;
  vertical-align: top;
  padding: 6px 8px;
}

.message th:nth-child(2),
.message td:nth-child(2) {
  padding-right: 16px;
}

.message th:nth-child(3),
.message td:nth-child(3) {
  padding-left: 16px;
}

.message.user {
  align-self: flex-end;
  background: var(--user);
  color: #fff;
}

.message.assistant {
  align-self: flex-start;
  background: var(--assistant);
  border: 1px solid var(--border);
}

.message.status {
  align-self: flex-start;
  font-size: 12px;
  color: var(--muted);
  background: transparent;
  padding: 0;
  border: none;
}

.activity-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 4px;
}

.activity-lines {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.radar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.radar-step {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  position: relative;
  color: var(--muted);
}

.radar-step::after {
  content: "";
  width: 10px;
  height: 1px;
  background: rgba(32, 54, 82, 0.35);
  margin-left: 6px;
}

.radar-step:last-child::after {
  content: none;
}

.radar-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--border);
  display: inline-block;
}

.radar-step.is-active {
  color: var(--accent);
}

.radar-step.is-active .radar-dot {
  background: var(--accent);
}

.radar-step.is-complete {
  color: var(--text);
}

.radar-step.is-complete .radar-dot {
  background: var(--text);
}

.radar-step.is-disabled {
  color: var(--border);
}

.radar-step.is-disabled .radar-dot {
  background: var(--border);
  opacity: 0.4;
}

.source-counter {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.source-counter::before {
  content: "";
  width: 1px;
  height: 12px;
  background: rgba(32, 54, 82, 0.25);
  margin-right: 8px;
}

.source-counter.is-hidden {
  display: none;
}

.source-counter-count {
  font-family: "Space Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--text);
}

.spinner {
  display: inline-block;
  margin-right: 8px;
  font-family: "Space Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.composer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.92);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.composer textarea {
  resize: none;
  height: 56px;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.profile-table th,
.profile-table td {
  text-align: left;
  padding: 12px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.profile-table th {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
}

.profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.button-link {
  font-family: "General Sans", "Segoe UI", sans-serif;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

.button-link:hover {
  box-shadow: 0 10px 18px rgba(31, 77, 122, 0.2);
}

.badge {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .message {
    max-width: 100%;
  }
  .composer {
    flex-direction: column;
    align-items: stretch;
  }
  .composer textarea {
    height: 80px;
  }
}