:root {
  color-scheme: light;
}

:root.dark {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #222;
}

/*
 * The fixed navbar overlaps the top of the card – keep
 * 80px of clearance (all modes, including portrait).
 */
.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(700px, calc(100% - 32px));
  padding-top: 80px;
}

.navbar {
  position: fixed;
  top: 16px;
  left: 2%;
  width: 96%;
  box-sizing: border-box;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.30), 0 12px 40px rgba(0, 0, 0, 0.45);
}

.logo-bar {
  display: flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
}

.logo-bar img {
  display: block;
  height: 60px;
  max-width: 100%;
  width: auto;
}

.nav-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-left: auto;
}

/* Hamburger: only visible on phone portrait.
 * "button.nav-toggle" is more specific than ".button",
 * otherwise display: inline-block overrides this rule. */
button.nav-toggle {
  display: none;
}

/* Tighter than the global 6px button margin */
.navbar .button {
  margin: 0;
}

.lang-menu {
  position: relative;
}

.lang-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  min-width: 150px;
  margin-top: 6px;
  padding: 6px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.lang-dropdown.open {
  display: block;
}

.lang-dropdown button {
  display: block;
  width: 100%;
  margin: 0;
  padding: 10px 14px;
  border: 0;
  border-radius: 6px;
  background: none;
  text-align: left;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
}

.lang-dropdown button:hover {
  background: #f0f0f0;
}

.lang-dropdown button.active {
  font-weight: 600;
  background: #f0f8ff;
}

.lang-flag {
  width: 20px;
  height: 13px;
  margin-right: 6px;
  border-radius: 2px;
  vertical-align: -2px;
}

.card {
  box-sizing: border-box;
  width: min(600px, 100%);
  padding: 32px;
  background: rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.30), 0 12px 40px rgba(0, 0, 0, 0.45);
  text-align: center;
}

h1 {
  margin-top: 0;
}

p {
  color: #555;
}

button, .button {
  display: inline-block;
  border: 0;
  border-radius: 8px;
  padding: 12px 20px;
  margin: 6px;
  font-size: 16px;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}

.primary {
  background: #1f73e8;
  color: white;
}

.secondary {
  background: #e9e9e9;
  color: #222;
}

.hidden {
  display: none !important;
}

.status {
  margin-top: 24px;
  padding: 16px;
  border-radius: 8px;
  background: #f0f0f0;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: 8px;
  border: 2px solid #ccc;
  border-top-color: #333;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: -3px;
}

.download {
  margin-top: 24px;
  padding: 20px;
  border-radius: 8px;
  background: #f5f5f5;
}

/* Long text needs left alignment, the card is centered */
.privacy {
  margin-top: 24px;
  padding: 20px;
  border-radius: 8px;
  background: #f5f5f5;
  text-align: left;
}

.room {
  display: block;
  margin-top: 20px;
  font-family: monospace;
  word-break: break-all;
}

.error {
  padding: 16px;
  border-radius: 8px;
  background: #fff0f0;
  color: #900;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 4px;
  font-weight: 500;
  color: #333;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box;
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.success-message {
  margin-top: 24px;
  padding: 16px;
  border-radius: 8px;
  background: #f0f8ff;
  color: #0066cc;
}

.adhoc-result {
  margin-top: 24px;
  padding: 16px;
  border-radius: 8px;
  background: #f0fff4;
  color: #1a7f37;
}

/*
 * scrollIntoView() aligns the target with the viewport
 * edge, where the fixed navbar sits. scroll-margin-top
 * keeps the target clear below the navbar.
 */
.adhoc-result,
.success-message {
  scroll-margin-top: 110px;
}

.adhoc-link {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.adhoc-link a {
  font-family: monospace;
  word-break: break-all;
  color: #0066cc;
}

/*
 * Prevents clipped content when the card is taller
 * than the viewport ("center" clips at the top).
 */
@supports (align-items: safe center) {
  body {
    align-items: safe center;
  }
}

/* Very narrow phones: even more compact */
@media (max-width: 400px) {
  .navbar {
    left: 2%;
    width: 96%;
    padding: 8px;
    gap: 6px;
  }

  .logo-bar img {
    height: 32px;
  }

  .nav-actions {
    gap: 6px;
  }

  .nav-actions .button {
    padding: 8px 12px;
    font-size: 14px;
  }
}

/*
 * Phone: show the navbar actions in both orientations
 * as a dropdown behind the hamburger button.
 *
 * Landscape phone: viewport wider than 600px – short
 * side (height) and touch input decide.
 */
@media (max-width: 600px),
       (orientation: landscape) and (max-height: 500px) and (pointer: coarse) {
  body {
    /*
     * Padding instead of margin-bottom on the card:
     * margins at the scroll end are not covered by the
     * scroll area, padding is.
     */
    padding-bottom: 10px;
    /* Subtract the 10px bottom padding */
    min-height: calc(100vh - 10px);
  }

  .navbar {
    top: 8px;
    left: 4%;
    width: 92%;
    padding: 10px;
  }

  .logo-bar img {
    height: 40px;
  }

  button, .button {
    padding: 10px 14px;
    font-size: 15px;
  }

  .card {
    padding: 20px;
  }

  /* Navbar is flatter here than on the desktop */
  .adhoc-result,
  .success-message {
    scroll-margin-top: 80px;
  }

  button.nav-toggle {
    display: inline-flex;
  }

  /* ".navbar .button" sets margin: 0 – hence target
   * more specifically: push the button to the right */
  .navbar .nav-toggle {
    margin-left: auto;
  }

  .nav-actions {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin: 8px 0 0;
    padding: 8px;
    min-width: 200px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    flex-direction: column;
    align-items: stretch;
  }

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

  /* All panel buttons equally wide, text centered */
  .nav-actions .button {
    text-align: center;
  }

  /* Language button sits inside the .lang-menu wrapper */
  .nav-actions .lang-menu .button {
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  :root.dark .nav-actions {
    background: #242424;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/*
 * Dark theme via the "dark" class on the html element.
 * JS sets it based on the saved choice or the system
 * setting (see detectTheme).
 */
:root.dark body {
  background: #181818;
  color: #eee;
}

:root.dark .navbar {
  background: rgba(36, 36, 36, 0.72);
}

:root.dark .card {
  background: rgba(36, 36, 36, 0.72);
}

:root.dark .lang-dropdown {
  background: #242424;
}

:root.dark .lang-dropdown button:hover {
  background: #303030;
}

:root.dark .lang-dropdown button.active {
  background: #1a3a5a;
}

:root.dark p {
  color: #bbb;
}

:root.dark .secondary {
  background: #444;
  color: #eee;
}

:root.dark .status,
:root.dark .download,
:root.dark .privacy {
  background: #303030;
}

:root.dark .spinner {
  border-color: #555;
  border-top-color: #ddd;
}

:root.dark .form-group label {
  color: #ddd;
}

:root.dark .form-group input,
:root.dark .form-group textarea {
  background: #303030;
  border-color: #555;
  color: #eee;
}

:root.dark .success-message {
  background: #1a3a5a;
  color: #99ccff;
}

:root.dark .adhoc-result {
  background: #1c3527;
  color: #7ee2a8;
}

:root.dark .logo-bar img {
  filter: url(#logo-dark-tint);
}

:root.dark .adhoc-link a {
  color: #99ccff;
}