:root {
  --bg-gradient: linear-gradient(135deg, #008080, #006f6f);
  --highlight-bg: #D7F29B;
  --highlight-text: #008080;
  --card-bg: rgba(0, 112, 112, 0.4);
  --text-light: #e8f4f4;
  --text-muted: #a8d4d4;
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-gradient);
  min-height: 100vh;
  color: var(--text-light);
  line-height: 1.5;
}

.btn-primary {
  background: var(--highlight-bg);
  color: var(--highlight-text);
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(215, 242, 155, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--highlight-bg);
  border: 2px solid var(--highlight-bg);
  padding: 10px 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: rgba(215, 242, 155, 0.2);
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

input, select, textarea {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-light);
  font-size: 1rem;
  width: 100%;
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--highlight-bg);
  box-shadow: 0 0 0 2px rgba(215, 242, 155, 0.3);
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
}

a {
  color: var(--highlight-bg);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

 .survey-header {
  padding: 6px 12px;
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.survey-header .logo {
  height: 44px;
  width: auto;
}

.survey-header-title {
  flex: 1;
  text-align: center;
  font-weight: 600;
  color: var(--highlight-text);
  font-size: 1rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeIn 0.4s ease-out;
}