:root {
  --primary: #1b6ef3;
  --primary-dark: #1457c4;
  --bg: #f2f5fa;
  --text: #1f2933;
  --muted: #7b8794;
  --error: #d64545;
  --success: #2f9e44;
  --border: #d7dde5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Sukhumvit Set", "Helvetica Neue", -apple-system, "Segoe UI",
    "Sarabun", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 16px;
}

.card {
  background: #fff;
  width: 100%;
  max-width: 440px;
  border-radius: 16px;
  box-shadow: 0 6px 24px rgba(27, 110, 243, 0.08);
  padding: 24px 20px 28px;
  align-self: flex-start;
}

.header {
  text-align: center;
  margin-bottom: 20px;
}

.logo {
  font-size: 40px;
}

h1 {
  font-size: 1.25rem;
  margin: 8px 0 4px;
}

.subtitle {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}

.profile {
  background: #eef4ff;
  color: var(--primary-dark);
  font-size: 0.85rem;
  text-align: center;
  border-radius: 10px;
  padding: 8px 12px;
  margin: 0 0 16px;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field > span {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.field em {
  color: var(--error);
  font-style: normal;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  appearance: none;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 110, 243, 0.15);
}

select:disabled {
  background: #f4f6f9;
  color: var(--muted);
}

.btn {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 4px;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  text-align: center;
  font-size: 0.9rem;
  margin: 16px 0 0;
  min-height: 1.2em;
}

.status.error {
  color: var(--error);
}

.status.success {
  color: var(--success);
}

.status.info {
  color: var(--muted);
}