.w3-card-4 {
  margin: 0;
  max-width: 100%;
}

input[type="range"] {
  width: 100%;
  max-width: 320px;
  height: 28px;
}

.w3-button {
  margin: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: auto;
  min-height: 2.5rem;
  padding: 0.62rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--input-border);
  background: var(--button-bg);
  color: var(--button-text);
  text-decoration: none;
  font: inherit;
  font-weight: 600;
  line-height: 1;
  box-shadow: none;
}

.w3-button:hover {
  background: var(--surface-subtle);
}

.w3-button.w3-blue,
.w3-button.w3-teal,
.w3-button.w3-purple,
.w3-button.w3-green,
.w3-button.w3-orange,
.w3-button.w3-deep-orange,
.w3-button.w3-red,
.w3-button.w3-gray {
  color: var(--button-text) !important;
  background: var(--button-bg) !important;
  border-color: var(--input-border) !important;
}

.w3-button.w3-blue,
.w3-button.w3-teal,
.w3-button.w3-purple,
.w3-button.w3-green {
  background: var(--button-primary-bg) !important;
  color: var(--button-primary-text) !important;
  border-color: var(--button-primary-bg) !important;
}

.w3-button.w3-blue:hover,
.w3-button.w3-teal:hover,
.w3-button.w3-purple:hover,
.w3-button.w3-green:hover {
  background: var(--button-primary-hover) !important;
  border-color: var(--button-primary-hover) !important;
}

.w3-button.w3-gray {
  background: var(--surface-subtle) !important;
}

.w3-button.w3-orange,
.w3-button.w3-deep-orange {
  background: color-mix(in srgb, var(--button-bg) 88%, #c9691a 12%) !important;
}

.w3-button.w3-red {
  background: color-mix(in srgb, var(--button-bg) 88%, #c63c37 12%) !important;
  color: var(--danger-text) !important;
  border-color: color-mix(in srgb, var(--input-border) 70%, #c63c37 30%) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.45rem;
  background: none;
  border: none;
  z-index: 1002;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  order: -1;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--page-text);
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 999px;
}

.hamburger.active {
  display: none;
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.28);
  z-index: 1000;
}

.mobile-menu-overlay.active {
  display: block;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: -320px;
  width: 320px;
  height: 100vh;
  background: var(--surface-bg);
  z-index: 1001;
  padding: 1rem;
  box-sizing: border-box;
  overflow-y: auto;
  transition: left 0.25s ease-in-out;
  box-shadow: 16px 0 40px var(--shadow-strong);
  border-right: 1px solid var(--border-color);
}

.mobile-menu.active {
  left: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu h1 {
  margin: 0;
  font-size: 1rem;
}

.mobile-menu-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--page-text);
  cursor: pointer;
  padding: 0.4rem;
  -webkit-tap-highlight-color: transparent;
}

.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-menu ul li {
  margin-bottom: 0.35rem;
}

.mobile-menu ul li a {
  display: block;
  padding: 0.8rem 0.9rem;
  color: var(--page-text);
  text-decoration: none;
  border-radius: 12px;
  transition: background-color 0.2s;
}

.mobile-menu ul li a:hover {
  background: var(--surface-subtle);
}

.mobile-menu .theme-toggle-container {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.mobile-menu .theme-toggle {
  justify-content: flex-start;
  margin-left: 0;
  padding: 0;
}

@media screen and (max-width: 768px) {
  body {
    padding: 0.25rem;
  }

  .content {
    padding: 1rem 0 0.75rem;
  }

  .hamburger {
    display: flex;
  }

  nav ul {
    display: none;
  }

  nav h1 {
    flex: 1;
    margin: 0;
    text-align: center;
  }

  nav {
    gap: 0.5rem;
  }
}

#brightness,
#default_interval {
  width: 100%;
  max-width: 320px;
  margin: 0.5rem 0 0;
}

.auto-login-indicator {
  display: inline-block;
  margin-right: 0.3rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

.auto-login-warning-banner {
  background: color-mix(in srgb, var(--surface-bg) 88%, #c63c37 12%);
  color: var(--page-text);
  padding: 1rem;
  text-align: center;
  font-weight: 700;
  border: 1px solid color-mix(in srgb, var(--border-color) 75%, #c63c37 25%);
  border-radius: 14px;
  margin-bottom: 1.5rem;
}

.auto-login-warning-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 1rem;
}

.auto-login-warning-icon {
  font-size: 1.2rem;
}

.auto-login-warning-subtext {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted-text);
}