:root {
  --bg-color-light: #f5f7fa;
  --text-color-light: #222;
  --link-color-light: #3a5ed4;
  --btn-bg-light: #3b82f6;
  --btn-hover-light: #2563eb;

  --bg-color-dark: #121212;
  --text-color-dark: #e0e0e0;
  --link-color-dark: #b69eee;
  --btn-bg-dark: #1e293b;
  --btn-hover-dark: #334155;

  --border-radius: 8px;
  --transition: 0.3s ease;
  --max-width: 900px;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color-light);
  color: var(--text-color-light);
  transition: background-color var(--transition), color var(--transition);
}

body.dark {
  background-color: var(--bg-color-dark);
  color: var(--text-color-dark);
}

a {
  color: var(--link-color-light);
  text-decoration: none;
  outline: none;
  -webkit-tap-highlight-color: transparent; 
 transition: color var(--transition);
}

body.dark a {
  color: var(--link-color-dark);
}

.nav {
  background: var(--btn-bg-light);
  padding: 1rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.nav a {
  color: white;
  font-weight: bold;
}

.container {
  max-width: var(--max-width);
  margin: auto;
  padding: 1.5rem;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
}

.faq .accordion {
  background-color: var(--btn-bg-light);
  color: white;
  cursor: pointer;
  padding: 1rem;
  margin: 0.5rem 0;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 1rem;
  border-radius: var(--border-radius);
  transition: background-color var(--transition);
}

.faq .accordion:hover,
.faq .accordion.active {
  background-color: var(--btn-hover-light);
}

body.dark .faq .accordion {
  background-color: var(--btn-bg-dark);
}

body.dark .faq .accordion:hover,
body.dark .faq .accordion.active {
  background-color: var(--btn-hover-dark);
}

.panel {
  padding: 0 1rem;
  margin-bottom: 2rem;
  display: none;
  /* height: 5rem; */
  font-size: 1.1rem;
  background-color: rgba(0, 0, 0, 0.03);
  border-left: 5px solid var(--btn-bg-light);
  border-radius: var(--border-radius);
}

body.dark .panel {
  background-color: rgba(255, 255, 255, 0.05);
  border-left-color: var(--btn-hover-dark);
}

ul {
  padding-left: 1.5rem;
}

footer {
  margin-top: 3rem;
  background-color: #1f2937;
  color: #d1d5db;
  padding: 2rem 1rem;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  max-width: var(--max-width);
  margin: auto;
}

.footer-left p,
.footer-right a {
  margin: 0.2rem 0;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.footer-right .footer-links {
  margin-bottom: 1rem;
}

.footer-right a {
  margin-right: 1rem;
}

.social-links a {
  margin-right: 0.5rem;
  color: #cbd5e1;
  font-size: 1.2rem;
}

#mode-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color-light);
  transition: color var(--transition);
  z-index: 1000;
}

body.dark #mode-toggle {
  color: var(--text-color-dark);
}

.accordion:after {
  content: "+";
  font-size: 24px;
  color: white;
  float: right;
}

.accordion.active:after {
  content: "-";
}