:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --card: #fffdf8;
  --text: #1f2933;
  --border: #d8d0c2;
  --accent: #1d6b57;
  --accent-hover: #155243;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", sans-serif;
  background: radial-gradient(circle at top, #fffaf0, var(--bg) 60%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 420px);
  padding: 32px 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 18px 50px rgba(34, 44, 54, 0.08);
  text-align: center;
}

h1 {
  margin: 0 0 24px;
  font-size: 1.8rem;
}

form {
  display: grid;
  gap: 16px;
}

.form-elements {
  display: grid;
  gap: 12px;
}

label {
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
}

input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font: inherit;
}

input:focus {
  outline: 2px solid rgba(29, 107, 87, 0.2);
  border-color: var(--accent);
}

button {
  border: 0;
  border-radius: 999px;
  padding: 13px 16px;
  font: inherit;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
}

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

button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.thankyou-message,
.error-message {
  display: none;
  margin: 0;
  line-height: 1.6;
}

.thankyou-message {
  color: var(--accent);
  font-weight: 600;
}

.error-message {
  color: #b42318;
}