/* ==========================================================================
   Modern & Minimalist Sphinx Theme
   ========================================================================== */

/* --- Root Variables: A refined, modern color palette --- */
:root {
    /* Primary color for branding, links, and active states. A professional, muted blue. */
    --primary-color: #3B82F6; /* blue-500 from Tailwind */
    /* A lighter shade for hover effects. */
    --primary-color-light: #60A5FA; /* blue-400 */
    /* A darker shade for borders or pressed states. */
    --primary-color-dark: #2563EB; /* blue-600 */

    /* Text colors for hierarchy and readability. */
    --text-primary: #1F2937; /* gray-800 */
    --text-secondary: #4B5563; /* gray-600 */
    --text-muted: #6B7280; /* gray-500 */
    --text-on-dark: #F9FAFB; /* gray-50 */

    /* Background colors for layout and depth. */
    --bg-main: #FFFFFF; /* White */
    --bg-sidebar: #111827; /* gray-900 */
    --bg-subtle: #F9FAFB; /* gray-50 */
    --bg-code: #F3F4F6; /* gray-100 */

    /* Accent colors for admonitions. */
    --accent-note: #3B82F6; /* blue-500 */
    --accent-warning: #F59E0B; /* amber-500 */
    --accent-tip: #10B981; /* emerald-500 */
    --accent-important: #EF4444; /* red-500 */

    /* General UI element colors. */
    --border-color: #E5E7EB; /* gray-200 */

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

    /* Spacing & Sizing */
    --content-width: 80ch; /* Optimal reading width */
    --border-radius: 6px;
}

/* --- General Body & Typography --- */
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin: 2.5rem 0 1.25rem 0;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: 2.25rem; /* 36px */
    font-weight: 700;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

h2 {
    font-size: 1.875rem; /* 30px */
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

h3 { font-size: 1.5rem; /* 24px */ }
h4 { font-size: 1.25rem; /* 20px */ }

p {
    margin-bottom: 1.25rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--primary-color-light);
    text-decoration: underline;
}

/* --- Main Content & Layout --- */
.wy-nav-content {
    max-width: var(--content-width); /* Constrain line length for readability */
}

/* --- Sidebar Navigation --- */
.wy-nav-side {
    background: var(--bg-sidebar);
}

.wy-side-nav-search {
    background: var(--bg-sidebar);
    padding: 1rem;
}

.wy-side-nav-search > a, .wy-side-nav-search .wy-dropdown > a {
    color: var(--text-on-dark);
    font-weight: 600;
}

.wy-side-nav-search input[type="text"] {
    background-color: #1F2937; /* gray-800 */
    border: 1px solid #374151; /* gray-700 */
    border-radius: var(--border-radius);
    color: var(--text-on-dark);
    transition: all 0.2s ease;
}

.wy-side-nav-search input[type="text"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5);
}


.wy-menu-vertical a {
    color: #D1D5DB; /* gray-300 */
    transition: background-color 0.2s ease, color 0.2s ease;
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
}

.wy-menu-vertical a:hover {
    background-color: #1F2937; /* gray-800 */
    color: white;
}

.wy-menu-vertical li.current > a {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
    border: none;
}

.wy-menu-vertical li.current > a:hover {
    background: var(--primary-color-light);
}

/* --- Code Blocks & Inline Code --- */
/* Wrapper for code blocks */
.highlight {
    background: var(--bg-code);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    position: relative;
}

.highlight pre {
    background: transparent !important;
    font-family: var(--font-mono);
    font-size: 0.9em;
    line-height: 1.6;
    padding: 1.25rem;
    margin: 0;
}

/* Inline code */
code.literal, tt {
    background: var(--bg-code);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* --- Admonitions (Note, Warning, etc.) --- */
.admonition {
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin: 1.5rem 0;
    border-left: 4px solid;
    background-color: var(--bg-subtle);
}

.admonition-title {
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.admonition.note { border-left-color: var(--accent-note); }
.admonition.warning { border-left-color: var(--accent-warning); }
.admonition.tip { border-left-color: var(--accent-tip); }
.admonition.important { border-left-color: var(--accent-important); }

.admonition.note .admonition-title { color: var(--accent-note); }
.admonition.warning .admonition-title { color: var(--accent-warning); }
.admonition.tip .admonition-title { color: var(--accent-tip); }
.admonition.important .admonition-title { color: var(--accent-important); }


/* --- Tables --- */
table.docutils {
    border: 1px solid var(--border-color);
    border-collapse: collapse;
    margin: 1.5rem 0;
    width: 100%;
    font-size: 0.95rem;
}

table.docutils thead {
    background: var(--bg-subtle);
    font-weight: 600;
}

table.docutils th, table.docutils td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

table.docutils tbody tr:nth-child(even) {
    background: var(--bg-subtle);
}

table.docutils tbody tr:hover {
    background: #F3F4F6; /* gray-100 */
}

/* --- sphinx-design Cards --- */
.grid-item-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    text-decoration: none;
    color: inherit !important; /* Override sphinx-design link color */
}

.grid-item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
    border-color: var(--primary-color);
}

.grid-item-card > p:last-child {
    margin-bottom: 0;
}

.sd-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* --- API Documentation --- */
.py.class, .py.method, .py.function {
    margin: 2rem 0;
    padding: 1rem;
    background: var(--bg-subtle);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.sig-name {
    font-weight: 600;
    font-family: var(--font-mono);
}

.sig-param {
    color: var(--text-secondary);
}

/* --- Copy Button for Code Blocks --- */
.copy-button {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.3rem 0.6rem;
    background: #E5E7EB; /* gray-200 */
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background-color 0.2s ease;
}

.highlight:hover .copy-button {
    opacity: 1;
}

.copy-button:hover {
    background: #D1D5DB; /* gray-300 */
}

/* --- Responsive Design --- */
@media screen and (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .wy-nav-content {
        padding: 1rem;
    }
}

/* --- Font Imports --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono&display=swap');