/* ============================================================
   Sage docs — custom styles
   Primary:   #0d3b2e  (dark green)
   Accent:    #2d9e6e  (mid green)
   Surface:   #edf7f1  (light green tint)
   Border:    #c8e6d4
   ============================================================ */

/* ----------------------------------------------------------
   Sidebar — logo area
   ---------------------------------------------------------- */

.wy-side-nav-search {
    background: linear-gradient(160deg, #0d3b2e 0%, #1a5c42 100%);
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.25);
}

.wy-side-nav-search > a img {
    max-height: 140px;
    width: auto;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
    transition: filter 0.2s ease;
}

.wy-side-nav-search > a img:hover {
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.wy-side-nav-search input[type="text"] {
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.wy-side-nav-search input[type="text"]::placeholder {
    color: rgba(255, 255, 255, 0.55);
}

.wy-side-nav-search input[type="text"]:focus {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.5);
    outline: none;
}

/* ----------------------------------------------------------
   Sidebar — navigation tree
   ---------------------------------------------------------- */

.wy-menu-vertical a {
    transition: background 0.15s ease, padding-left 0.15s ease, color 0.15s ease;
}

.wy-menu-vertical a:hover {
    background-color: rgba(255, 255, 255, 0.07) !important;
    color: #ffffff !important;
    padding-left: 1.3em;
}

.wy-menu-vertical li.current > a,
.wy-menu-vertical li.current > a:hover {
    border-left: 3px solid #4ecb91;
    background-color: rgba(78, 203, 145, 0.12) !important;
    color: #2b2b2b !important;
}

.wy-menu-vertical li.toctree-l2.current > a {
    border-left: 3px solid #4ecb91;
}

/* Caption labels (e.g. "User Guide", "Reference") */
.wy-menu-vertical p.caption {
    color: #2d9e6e;
    letter-spacing: 0.08em;
    font-size: 0.72em;
    text-transform: uppercase;
    margin-top: 1.2em;
}

/* ----------------------------------------------------------
   Custom scrollbar (webkit)
   ---------------------------------------------------------- */

::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

::-webkit-scrollbar-track {
    background: #f4f4f4;
}

::-webkit-scrollbar-thumb {
    background: #2d9e6e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0d3b2e;
}

/* ----------------------------------------------------------
   Main content area
   ---------------------------------------------------------- */

html {
    scroll-behavior: smooth;
}

.wy-nav-content {
    max-width: 1000px;
}

/* Text selection colour */
::selection {
    background: #c8e6d4;
    color: #0d3b2e;
}

/* ----------------------------------------------------------
   Typography
   ---------------------------------------------------------- */

.rst-content h1 {
    letter-spacing: -0.025em;
}

.rst-content h2 {
    letter-spacing: -0.02em;
    border-bottom: 2px solid #edf7f1;
    padding-bottom: 0.35em;
    margin-top: 1.8em;
}

.rst-content h3 {
    letter-spacing: -0.015em;
    color: #1a5c42;
}

.rst-content h4 {
    color: #2d9e6e;
}

/* Horizontal rules */
.rst-content hr {
    border: 0;
    border-top: 1px solid #ddeee6;
    margin: 2em 0;
}

/* ----------------------------------------------------------
   Links
   ---------------------------------------------------------- */

.rst-content a {
    color: #1a6b51;
    text-decoration-color: rgba(26, 107, 81, 0.3);
    text-underline-offset: 2px;
    transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.rst-content a:hover {
    color: #0d3b2e;
    text-decoration-color: rgba(13, 59, 46, 0.7);
}

/* ----------------------------------------------------------
   Inline code
   ---------------------------------------------------------- */

.rst-content code.literal,
.rst-content tt.literal {
    background-color: #edf7f1;
    color: #0d3b2e;
    border: 1px solid #c8e6d4;
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.875em;
}

/* ----------------------------------------------------------
   Code blocks
   ---------------------------------------------------------- */

.rst-content div[class^="highlight"],
.rst-content div.highlight {
    border-left: 3px solid #2d9e6e;
    border-radius: 0 5px 5px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin: 1.2em 0;
    transition: box-shadow 0.2s ease;
}

.rst-content div[class^="highlight"]:hover,
.rst-content div.highlight:hover {
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

/* ----------------------------------------------------------
   Tables
   ---------------------------------------------------------- */

.rst-content table.docutils {
    border-collapse: collapse;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
}

.rst-content table.docutils thead th {
    background-color: #0d3b2e;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
}

.rst-content table.docutils tbody tr {
    transition: background-color 0.12s ease;
}

.rst-content table.docutils tbody tr:nth-child(even) {
    background-color: #f7fbf9;
}

.rst-content table.docutils tbody tr:hover {
    background-color: #edf7f1;
}

.rst-content table.docutils td {
    border-color: #ddeee6;
}

/* ----------------------------------------------------------
   Admonitions
   ---------------------------------------------------------- */

.rst-content .admonition {
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border-left-width: 4px;
}

/* Note box */
.rst-content .admonition.note {
    border-left-color: #1a5c42;
}

.rst-content .admonition.note > .admonition-title {
    background-color: #1a5c42;
}

/* ----------------------------------------------------------
   Sphinx-design cards
   ---------------------------------------------------------- */

.sd-card {
    border: 1px solid #ddeee6 !important;
    border-radius: 8px !important;
    box-shadow: 0 2px 8px rgba(13, 59, 46, 0.07) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease !important;
    overflow: hidden;
}

.sd-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 28px rgba(13, 59, 46, 0.14) !important;
    border-color: #2d9e6e !important;
}

.sd-card-header {
    background: linear-gradient(135deg, #f2faf6 0%, #ffffff 100%) !important;
    border-bottom: 1px solid #edf7f1 !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    color: #0d3b2e !important;
    padding: 0.85em 1em !important;
}

.sd-card-footer {
    background-color: #f8fcfa !important;
    border-top: 1px solid #edf7f1 !important;
    font-size: 0.875em !important;
}

.sd-card-footer a {
    color: #1a6b51 !important;
    font-weight: 500;
    text-decoration: none !important;
    transition: color 0.15s ease !important;
}

.sd-card-footer a:hover {
    color: #0d3b2e !important;
}

/* ----------------------------------------------------------
   Sphinx-design dropdowns (FAQ / Troubleshooting)
   ---------------------------------------------------------- */

.sd-dropdown {
    border: 1px solid #ddeee6 !important;
    border-radius: 6px !important;
    margin-bottom: 0.75em !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05) !important;
    transition: box-shadow 0.2s ease !important;
    overflow: hidden;
}

.sd-dropdown:hover {
    box-shadow: 0 3px 10px rgba(13, 59, 46, 0.1) !important;
}

.sd-dropdown summary {
    background-color: #f2faf6 !important;
    padding: 0.75em 1em !important;
    font-weight: 500 !important;
    color: #0d3b2e !important;
    cursor: pointer;
    transition: background-color 0.15s ease !important;
    border-radius: 6px;
}

.sd-dropdown summary:hover {
    background-color: #e4f5ec !important;
}

.sd-dropdown[open] summary {
    border-bottom: 1px solid #ddeee6;
    border-radius: 6px 6px 0 0;
    background-color: #e4f5ec !important;
}

.sd-dropdown > div {
    padding: 1em 1.25em !important;
    background-color: #ffffff;
}

/* ----------------------------------------------------------
   Warning icon pulse (under-construction cards)
   ---------------------------------------------------------- */

@keyframes gentle-pulse {
    0%   { opacity: 1; }
    50%  { opacity: 0.55; }
    100% { opacity: 1; }
}

.sd-text-warning {
    animation: gentle-pulse 2.4s ease-in-out infinite;
}

/* ----------------------------------------------------------
   Glossary
   ---------------------------------------------------------- */

.rst-content dl.glossary dt {
    color: #0d3b2e;
    font-weight: 600;
    border-left: 3px solid #4ecb91;
    padding-left: 0.6em;
    margin-top: 1em;
}

/* ----------------------------------------------------------
   Footer
   ---------------------------------------------------------- */

footer {
    border-top: 2px solid #edf7f1;
    margin-top: 2.5em;
    padding-top: 1em;
    color: #6b8c7d;
    font-size: 0.875em;
}

footer a {
    color: #1a6b51;
    transition: color 0.15s ease;
}

footer a:hover {
    color: #0d3b2e;
}

/* ----------------------------------------------------------
   Breadcrumbs
   ---------------------------------------------------------- */

.wy-breadcrumbs li a {
    color: #1a6b51;
    transition: color 0.15s ease;
}

.wy-breadcrumbs li a:hover {
    color: #0d3b2e;
}

/* ----------------------------------------------------------
   Version selector in sidebar
   ---------------------------------------------------------- */

.rst-versions {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: #0a2e22 !important;
}

.rst-versions .rst-current-version {
    background: #0d3b2e !important;
    transition: background 0.2s ease;
}

.rst-versions .rst-current-version:hover {
    background: #1a5c42 !important;
}

/* ----------------------------------------------------------
   Hero logo — no pointer, no lightbox
   ---------------------------------------------------------- */

img.sage-logo-hero {
    cursor: default !important;
}

/* ----------------------------------------------------------
   Logo download button
   ---------------------------------------------------------- */

#sage-logo-download {
    display: block;
    width: fit-content;
    margin: 0.6em auto 0;
    padding: 0.3em 0.85em;
    border: 1px solid #c8e6d4;
    border-radius: 20px;
    background: #f8fcfa;
    color: #1a6b51;
    font-size: 0.78em;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none !important;
    line-height: 1.6;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

#sage-logo-download svg {
    vertical-align: middle;
    margin-right: 0.3em;
    position: relative;
    top: -1px;
}

#sage-logo-download:hover {
    border-color: #2d9e6e;
    background: #edf7f1;
    color: #0d3b2e;
}

/* ----------------------------------------------------------
   Reading progress bar
   ---------------------------------------------------------- */

#sage-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: #2d9e6e;
    z-index: 9999;
    transition: width 0.1s linear;
    pointer-events: none;
}

/* ----------------------------------------------------------
   Scroll-triggered fade-in
   ---------------------------------------------------------- */

@keyframes sage-fade-up {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sage-reveal {
    opacity: 0;
    transform: translateY(18px);
}

.sage-reveal.sage-visible {
    animation: sage-fade-up 0.45s ease forwards;
}

/* ----------------------------------------------------------
   Back-to-top button
   ---------------------------------------------------------- */

#sage-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    border: 2px solid #2d9e6e;
    background: #ffffff;
    color: #2d9e6e;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
    z-index: 9998;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(13, 59, 46, 0.15);
}

#sage-back-to-top.sage-btt-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#sage-back-to-top:hover {
    background: #edf7f1;
}

/* ----------------------------------------------------------
   Figure lightbox
   ---------------------------------------------------------- */

#sage-lightbox {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    inset: 0;
    background: rgba(5, 20, 15, 0.88);
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

#sage-lightbox.sage-lightbox-open {
    opacity: 1;
    pointer-events: auto;
}

#sage-lightbox img {
    max-width: 92vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
    transform: scale(0.94);
    transition: transform 0.25s ease;
}

#sage-lightbox.sage-lightbox-open img {
    transform: scale(1);
}

#sage-lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

#sage-lightbox-close:hover {
    opacity: 1;
}