/* Theme Variables */
:root {
    /* Light theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fb;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --accent-primary: #2563eb;
    --accent-hover: #1d4ed8;
    --border-color: #e5e7eb;
    --border-primary: #e5e7eb;
}

/* Dark theme */
.dark {
    --bg-primary: #1a1b26;
    --bg-secondary: #24283b;
    --text-primary: #a9b1d6;
    --text-secondary: #9aa5ce;
    --accent-primary: #7aa2f7;
    --accent-hover: #bb9af7;
    --border-color: #2e3249;
    --border-primary: #2e3249;
}

/* Body transitions */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.25s ease, color 0.25s ease;
}

/* Theme toggle switch */
.theme-toggle {
    position: relative;
    width: 64px;
    height: 32px;
    padding: 4px;
    border: none;
    border-radius: 32px;
    background-color: #24283b;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

:root:not(.dark) .theme-toggle {
    background-color: #e5e7eb;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: #ffffff;
    transition: transform 0.3s ease;
    z-index: 2;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.dark .theme-toggle::before {
    transform: translateX(32px);
}

.theme-icons {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 8px;
    pointer-events: none;
}

.theme-icons svg {
    width: 14px;
    height: 14px;
    z-index: 1;
}

.theme-icons .sun { color: #ffd700; }
.theme-icons .moon { color: #a9b1d6; }

/* Headings inherit accent color when using CSS vars */
code, pre {
    background-color: var(--bg-secondary);
    border-radius: 4px;
}

code {
    padding: 0.1em 0.4em;
    font-size: 0.875em;
}