:root {
  color-scheme: light;
  --site-theme-button-bg: rgba(255, 255, 255, 0.78);
  --site-theme-button-ink: #1d5149;
  --site-theme-button-line: rgba(21, 33, 29, 0.14);
  --site-theme-button-hover: #ffffff;
  --site-theme-focus: rgba(178, 124, 72, 0.58);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --site-theme-button-bg: rgba(28, 39, 35, 0.9);
  --site-theme-button-ink: #b8ded5;
  --site-theme-button-line: rgba(232, 240, 235, 0.16);
  --site-theme-button-hover: #24332e;
  --site-theme-focus: rgba(211, 161, 107, 0.7);
}

[data-theme-mount] {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
}

.site-theme-toggle {
  display: inline-flex;
  min-width: 98px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--site-theme-button-line);
  border-radius: 999px;
  padding: 8px 13px;
  color: var(--site-theme-button-ink);
  background: var(--site-theme-button-bg);
  box-shadow: 0 8px 24px rgba(20, 31, 27, 0.08);
  font: 750 0.78rem/1 Aptos, "Segoe UI Variable", "Segoe UI", sans-serif;
  letter-spacing: 0.01em;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.site-theme-toggle:hover {
  background: var(--site-theme-button-hover);
  transform: translateY(-1px);
}

.site-theme-toggle:focus-visible {
  outline: 3px solid var(--site-theme-focus);
  outline-offset: 3px;
}

.site-theme-icons {
  position: relative;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.password-visibility-toggle {
  display: inline-grid;
  width: 44px;
  min-width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 11px;
  padding: 0;
  color: var(--site-theme-button-ink);
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.password-visibility-toggle:hover {
  border-color: var(--site-theme-button-line);
  background: var(--site-theme-button-hover);
}

.password-visibility-toggle:focus-visible {
  outline: 3px solid var(--site-theme-focus);
  outline-offset: 2px;
}

.password-visibility-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.password-visibility-slash { transition: opacity 120ms ease; }
.password-visibility-toggle[aria-pressed="true"] .password-visibility-slash { opacity: 0; }

.site-theme-icon {
  position: absolute;
  inset: 0;
  width: 18px;
  height: 18px;
  transition: opacity 150ms ease, transform 180ms ease;
}

.site-theme-icon-sun { opacity: 0; transform: rotate(-30deg) scale(0.7); }
html[data-theme="dark"] .site-theme-icon-moon { opacity: 0; transform: rotate(30deg) scale(0.7); }
html[data-theme="dark"] .site-theme-icon-sun { opacity: 1; transform: rotate(0) scale(1); }

@media (max-width: 560px) {
  .site-theme-toggle {
    min-width: 42px;
    width: 42px;
    padding-inline: 0;
  }
  .site-theme-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .site-theme-toggle,
  .site-theme-icon,
  .password-visibility-toggle,
  .password-visibility-slash { transition: none !important; }
}

@media (prefers-contrast: more) {
  .site-theme-toggle { border-width: 2px; box-shadow: none; }
}

@media (forced-colors: active) {
  .site-theme-toggle,
  .password-visibility-toggle { border: 1px solid ButtonText; forced-color-adjust: auto; }
}