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

:root {
  --bg: #f7f7f7;
  --text: #1a1a1a;
  --border: #e5e5e5;
  --hover: #f2f2f2;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

body.dark {
  --bg: #121212;
  --text: #eaeaea;
  --border: #2e2e2e;
  --hover: #1e1e1e;
}

/* Layout helpers */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Top navigation */
.topbar {
  background: #160135;
  border-bottom: 1px solid #e5e5e5;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: x-large;
  font-weight: 700;
  color: #ecd1ff;
}

.brand img {
  height: 38px;
  width: auto;
}

nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: #c7c7c7;
  font-size: 0.95rem;
}

nav a:hover {
  text-decoration: underline;
}

/* Nav right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Language menu */
.lang-wrapper {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 0px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.9rem;
  cursor: pointer;
  color: #c7c7c7;
}

.lang-btn:hover {
  background: var(--hover);
  color: #1a1a1a;
}

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 160px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  overflow: hidden;
  display: none;
  z-index: 1000;
}

.lang-menu a {
  display: block;
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
}

.lang-menu a:hover {
  background: var(--hover);
}

.lang-wrapper.open .lang-menu {
  display: block;
}

/* Top bar buttons */
.icon-btn {
  background: none;
  border: none;
  color: #c7c7c7;
  font-size: 1rem;
  cursor: pointer;
  padding: 0.4rem 0.6rem;
}

.icon-btn:hover,
/*.lang-btn:hover,*/
.burger:hover {
  background: var(--hover);
  border-radius: 6px;
  color: var(--text);
}

/* Language dropdown */
.lang {
  position: relative;
}

.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: 2.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 150px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  overflow: hidden;
}

.lang-menu a {
  display: block;
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
}

.lang-menu a:hover {
  background: var(--hover);
  color: #1a1a1a;
}

/* Open state */
.lang.open .lang-menu {
  display: block;
}


/* Dark Mode Button */
.theme-btn {
  background: transparent;
  border: 0px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text);
}

.theme-btn:hover {
  background: var(--hover);
}

/* Burger */
.burger {
  display: none;
  background: #160135;
  border: none;
  font-size: 1.5rem;
}

@media (max-width: 700px) {
  .burger {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
  }

  .nav-links.open {
    display: flex;
  }
}

/* Main content */
.content {
  background: #ffffff;
  padding: 2rem;
  margin: 2rem auto;
  border-radius: 8px;
}

.content h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.content h2 {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.content p {
  margin-top: 0.75rem;
}

.list {
  list-style-position: inside;
}

/* Footer */
.footer {
  background: #ffffff;
  border-top: 1px solid #e5e5e5;
  padding: 1.5rem 0;
  margin-top: 3rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}

.footer-links a {
  margin: 0 0.5rem;
  text-decoration: none;
  color: #555;
  font-size: 0.9rem;
}

.footer-links a:hover {
  text-decoration: underline;
}

/* Responsive tweaks */
@media (max-width: 600px) {
  nav {
    display: none; /* keep simple; can add burger later */
  }

  .content {
    padding: 1.5rem 1rem;
  }
}