:root {
  --background: #f6f4f2;
  --card-background: #ffffff;
  --primary: #8d493a;
  --primary-dark: #6c372b;
  --accent: #f4b860;
  --text: #3f2b27;
  --muted: #8d8279;
  --error: #c0392b;
  --success: #1e8449;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.container {
  max-width: 480px;
  width: 100%;
}

.card {
  background: var(--card-background);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 12px 30px rgba(63, 43, 39, 0.08);
}

.logo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.logo {
  width: 96px;
  height: auto;
}

h1 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.8rem;
}

.intro {
  margin-top: 0;
  margin-bottom: 28px;
  color: var(--muted);
  line-height: 1.5;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}



fieldset.field {
  border: none;
  padding: 0;
}

.field span,
legend {
  font-weight: 600;
}

input[type="text"],
textarea {
  border: 1px solid rgba(63, 43, 39, 0.15);
  border-radius: 10px;
  padding: 12px;
  font-size: 1rem;
  resize: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(141, 73, 58, 0.15);
}

.stars {
  display: flex;
  gap: 6px;
}

.star {
  font-size: 1.8rem;
  background: none;
  border: none;
  color: #d2c8c1;
  cursor: pointer;
  transition: transform 0.1s ease, color 0.2s ease;
}

.star:hover,
.star:focus {
  transform: translateY(-2px);
}

.star.selected,
.star.active {
  color: var(--accent);
}

.field-help {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.form-status {
  min-height: 20px;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}

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

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

.reward {
  background: rgba(244, 184, 96, 0.12);
  border: 1px solid rgba(244, 184, 96, 0.3);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 20px;
  color: var(--text);
}

.reward-title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
}

.reward-copy {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.5;
}

.reward-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.reward-btn:hover,
.reward-btn:focus {
  transform: translateY(-1px);
  background: #f8c981;
}

.tips {
  background: rgba(15, 66, 50, 0.07);
  border: 1px solid rgba(15, 66, 50, 0.2);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 20px;
  color: var(--text);
}

.tips-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
}

.tips-copy {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.5;
}

.tips-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}

.tips-btn:hover,
.tips-btn:focus {
  transform: translateY(-1px);
  background: var(--primary-dark);
}

.submit-btn {
  width: 100%;
  background: #0f4232;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  padding: 14px 20px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}

.submit-btn:hover,
.submit-btn:focus {
  background: #0c3629;
  transform: translateY(-1px);
}

.footer-note {
  margin-top: 24px;
  margin-bottom: 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 520px) {
  .card {
    padding: 24px 20px;
  }

  .star {
    font-size: 1.6rem;
  }
}