:root[data-theme="light"] {
  color-scheme: light;
  --color-primary: rgb(58, 85, 180);
  --color-primary-content: rgb(255, 255, 255);
  --color-secondary: rgb(129, 222, 118);
  --color-secondary-content: rgb(22, 40, 18);
  --color-base-100: rgb(248, 250, 252);
  --color-base-200: rgb(226, 232, 240);
  --color-base-300: rgb(203, 213, 225);
  --color-base-content: rgb(15, 23, 42);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-primary: rgb(58, 85, 180);
  --color-primary-content: rgb(255, 255, 255);
  --color-secondary: rgb(129, 222, 118);
  --color-secondary-content: rgb(22, 40, 18);
  --color-base-100: rgb(15, 23, 42);
  --color-base-200: rgb(30, 41, 59);
  --color-base-300: rgb(51, 65, 85);
  --color-base-content: rgb(241, 245, 249);
}

.hero-gradient {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, rgb(58, 85, 180) 85%, transparent) 0%,
    color-mix(in srgb, rgb(129, 222, 118) 55%, rgb(58, 85, 180)) 50%,
    rgb(15, 23, 42) 100%
  );
}

:root[data-theme="light"] .hero-gradient {
  background: linear-gradient(
    135deg,
    rgb(58, 85, 180) 0%,
    color-mix(in srgb, rgb(129, 222, 118) 70%, white) 45%,
    rgb(248, 250, 252) 100%
  );
}

/* Navbar theme control: pill track + sliding thumb (checkbox #theme-toggle unchanged for JS) */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.theme-toggle__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-base-content) 55%, transparent);
}

@media (max-width: 640px) {
  .theme-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}

.theme-toggle__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle__input:focus-visible + .theme-toggle__track {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.theme-toggle__track {
  position: relative;
  display: block;
  width: 3.5rem;
  height: 1.875rem;
  flex-shrink: 0;
  padding: 0.1875rem;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--color-base-content) 10%, var(--color-base-200));
  border: 1px solid color-mix(in srgb, var(--color-base-content) 12%, transparent);
  box-shadow: inset 0 1px 2px rgb(0 0 0 / 0.06);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.theme-toggle__hint {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  width: 1rem;
  height: 1rem;
  pointer-events: none;
  color: color-mix(in srgb, var(--color-base-content) 35%, transparent);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.theme-toggle__hint svg {
  width: 100%;
  height: 100%;
}

.theme-toggle__hint--sun {
  left: 0.35rem;
}

.theme-toggle__hint--moon {
  right: 0.35rem;
}

.theme-toggle__input:not(:checked) + .theme-toggle__track .theme-toggle__hint--moon {
  opacity: 0.4;
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__hint--sun {
  opacity: 0.4;
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__hint--moon {
  color: color-mix(in srgb, var(--color-secondary) 85%, var(--color-base-content));
  opacity: 1;
}

.theme-toggle__input:not(:checked) + .theme-toggle__track .theme-toggle__hint--sun {
  color: color-mix(in srgb, var(--color-primary) 75%, var(--color-base-content));
  opacity: 1;
}

.theme-toggle__thumb {
  position: absolute;
  left: 0.1875rem;
  top: 50%;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--color-base-100);
  box-shadow:
    0 1px 2px rgb(0 0 0 / 0.12),
    0 2px 6px rgb(0 0 0 / 0.08);
  transform: translateY(-50%);
  transition: transform 0.28s cubic-bezier(0.34, 1.2, 0.64, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__thumb {
  transform: translateY(-50%) translateX(calc(3.5rem - 0.375rem - 1.5rem));
}

.theme-toggle__glyph {
  position: absolute;
  width: 0.875rem;
  height: 0.875rem;
  transition: opacity 0.15s ease, transform 0.2s ease;
}

.theme-toggle__glyph--sun {
  color: rgb(234 179 8);
  opacity: 1;
  transform: scale(1);
}

.theme-toggle__glyph--moon {
  color: var(--color-primary);
  opacity: 0;
  transform: scale(0.85);
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__glyph--sun {
  opacity: 0;
  transform: scale(0.85);
}

.theme-toggle__input:checked + .theme-toggle__track .theme-toggle__glyph--moon {
  opacity: 1;
  transform: scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .theme-toggle__track,
  .theme-toggle__thumb,
  .theme-toggle__glyph,
  .theme-toggle__hint {
    transition: none;
  }
}