:root {
  color-scheme: light;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2a37;
  --muted: #6b7280;
  --accent: #2563eb;
  --success: #16a34a;
  --border: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 6px 20px rgba(17, 24, 39, 0.06);
}

h1 {
  margin: 0 0 6px;
  font-size: 24px;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 20px;
}

label {
  display: block;
  font-weight: 600;
  margin: 16px 0 6px;
}

input[type="text"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 14px;
  background: #fff;
}

.row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 14px;
  background: #fff;
  cursor: pointer;
}

.chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(37, 99, 235, 0.08);
}

.grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(40px, 1fr));
  gap: 8px;
}

.grid button {
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px 0;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}

.grid button.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(37, 99, 235, 0.12);
}

.actions {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  border: none;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
}

.btn.secondary {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--accent);
}

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

.success {
  color: var(--success);
  font-weight: 600;
}

.error {
  color: #dc2626;
  font-weight: 600;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.footer {
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted);
}