:root {
  --bg: #f6f7fb;
  --card-bg: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --danger-bg: #fef2f2;
  --danger-text: #b91c1c;
  --dup-bg: #fff7ed;
  --dup-text: #c2410c;
  --new-bg: #ecfdf5;
  --new-text: #047857;
}

* {
  box-sizing: border-box;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.topbar .brand {
  font-weight: 700;
}

.topbar .user-info a {
  margin-left: 16px;
  color: var(--accent);
  text-decoration: none;
}

.topbar .user-info a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 20px;
}

h1 {
  margin-bottom: 20px;
}

.login-box {
  max-width: 360px;
  margin: 80px auto;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
}

.login-box form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-box label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
}

input[type="text"],
input[type="password"],
input[type="file"] {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

button {
  margin-top: 18px;
  padding: 10px 16px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}

button:hover {
  background: var(--accent-hover);
}

.error {
  background: var(--danger-bg);
  color: var(--danger-text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
}

.stats {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 28px;
  font-weight: 700;
}

.stat-label {
  color: var(--muted);
  font-size: 13px;
}

a.button {
  display: inline-block;
  background: var(--accent);
  color: white;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 20px;
}

a.button:hover {
  background: var(--accent-hover);
}

.leads-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.leads-table th,
.leads-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.leads-table th {
  background: #fafafa;
  color: var(--muted);
  font-weight: 600;
}

.duplicate-row {
  background: #fffaf5;
}

.badge {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-new {
  background: var(--new-bg);
  color: var(--new-text);
}

.badge-duplicate {
  background: var(--dup-bg);
  color: var(--dup-text);
}

.upload-form {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 20px 0;
}

.upload-form button {
  margin-top: 0;
}

.result-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
}

code {
  background: #f1f1f4;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}