@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&family=Noto+Sans+SC:wght@300;400;500;700&family=Roboto:wght@400;500;700&family=Lato:wght@400;700&display=swap");

body {
  font-family: "Inter", sans-serif;
  color: #e2e8f0;
}
.aurora-background {
  background: linear-gradient(
    135deg,
    #1b3a8e,
    #33862e,
    #483081,
    #943c91,
    #9c5930
  );
  background-size: 400% 400%;
  animation: aurora-flow 20s ease infinite;
}
@keyframes aurora-flow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.text-shadow {
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
header {
  transition: all 0.3s ease-in-out;
  background-color: rgba(15, 23, 42, 0.6);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.header-scrolled {
  background-color: rgba(15, 23, 42, 0.8);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}
nav a {
  color: #cbd5e1;
}
nav a:hover {
  color: white;
}
nav a.text-indigo-500 {
  color: #a5b4fc !important;
  font-weight: 600;
}
.card-base {
  border-radius: 1rem;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  height: 100%;
}
[data-animate="reveal-up"] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transition-delay: var(--animation-delay, 0s);
}
[data-animate="reveal-up"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.control-label {
  font-weight: 600;
  color: #cbd5e1;
  font-size: 0.9rem;
}
.control-color-picker {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 48px;
  height: 32px;
  background-color: transparent;
  border: 1px solid #475569;
  border-radius: 0.375rem;
  cursor: pointer;
}
.control-color-picker::-webkit-color-swatch,
.control-color-picker::-moz-color-swatch {
  border-radius: 0.25rem;
  border: none;
}
.control-text-input,
.control-select,
#export-textarea {
  background-color: rgba(15, 23, 42, 0.5);
  border: 1px solid #475569;
  color: #e2e8f0;
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.control-text-input:focus,
.control-select:focus,
#export-textarea:focus {
  outline: none;
  border-color: #818cf8;
  box-shadow: 0 0 0 2px rgba(129, 140, 248, 0.4);
}
.action-btn {
  width: 100%;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  color: white;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  cursor: pointer;
}
.action-btn:hover {
  transform: translateY(-2px);
}
#export-textarea {
  font-family: monospace;
  line-height: 1.6;
  color: #a5b4fc;
}

/* --- Preview Area --- */
.preview-wrapper {
  --primary-color: #6d28d9;
  --bg-color: #111827;
  --card-color: #1f2937;
  --text-color: #e5e7eb;
  --text-color-secondary: #9ca3af;
  --font-family: "Noto Sans SC", sans-serif;

  background-color: var(--bg-color);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  transition: background-color 0.4s;
  font-family: var(--font-family);
}
.preview-survey-page {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.preview-header {
  background-color: color-mix(in srgb, var(--card-color) 70%, transparent);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}
.preview-progress-bar-container {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 99px;
  overflow: hidden;
}
.preview-progress {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border: none;
}
.preview-progress::-webkit-progress-bar {
  background-color: transparent;
}
.preview-progress::-webkit-progress-value {
  background-color: var(--primary-color);
  border-radius: 99px;
  transition: background-color 0.4s;
}
.preview-progress::-moz-progress-bar {
  background-color: var(--primary-color);
  border-radius: 99px;
  transition: background-color 0.4s;
}

.preview-survey-container {
  background-color: var(--card-color);
  border-radius: 0.75rem;
  padding: 1.5rem 2rem;
  transition: background-color 0.4s;
}
.preview-title-group {
  text-align: center;
  margin-bottom: 2rem;
}
.preview-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}
.preview-subtitle {
  color: var(--text-color-secondary);
  font-size: 0.9rem;
}
.preview-form fieldset {
  border: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
}
.preview-form legend {
  font-weight: 500;
  color: color-mix(in srgb, var(--primary-color) 80%, white);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid
    color-mix(in srgb, var(--primary-color) 20%, transparent);
  width: 100%;
}

.preview-question-block {
  margin-bottom: 1.5rem;
}
.preview-question-block > label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 500;
  color: var(--text-color);
}
.preview-question-number {
  color: var(--primary-color);
  font-weight: 700;
}

.preview-radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.preview-radio-group input {
  display: none;
}
.preview-radio-label {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  background-color: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  color: var(--text-color-secondary);
}
.preview-radio-label:hover {
  background-color: rgba(255, 255, 255, 0.1);
}
.preview-radio-group input:checked + .preview-radio-label {
  background-color: color-mix(in srgb, var(--primary-color) 20%, transparent);
  border-color: var(--primary-color);
  color: var(--text-color);
  box-shadow: 0 0 15px color-mix(in srgb, var(--primary-color) 15%, transparent);
}
.preview-input {
  width: 100%;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid #475569;
  border-radius: 0.375rem;
  padding: 0.625rem 0.75rem;
  color: var(--text-color);
  transition: all 0.2s;
}
.preview-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px
    color-mix(in srgb, var(--primary-color) 30%, transparent);
}
.preview-form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.preview-primary-btn,
.preview-secondary-btn {
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.preview-primary-btn {
  background-color: var(--primary-color);
  color: white;
}
.preview-secondary-btn {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-color-secondary);
}
.preview-primary-btn:hover {
  filter: brightness(1.15);
}
.preview-secondary-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--text-color);
}

footer.bg-slate-800 {
  background-color: #1e293b;
}
#scrollToTopBtn {
  background-color: #818cf8;
}
#scrollToTopBtn:hover {
  background-color: #6366f1;
}
#mobile-menu {
  background-color: #1e293b;
  border-top-color: rgba(255, 255, 255, 0.1);
}
#mobile-menu a {
  color: #cbd5e1;
}
#mobile-menu a:hover {
  color: white;
}
#mobile-menu a.text-indigo-500 {
  color: #a5b4fc !important;
}
main > div > p {
  color: #e2e8f0;
}