:root {
    --tech-bg-0: #fdf6ee;
    --tech-bg-1: #f4ece0;
    --tech-bg-2: #edf2e7;
    --tech-ink: #1e1010;
    --tech-link: #1e3d6e;
    --tech-link-hover: #152c52;
    --tech-accent: #3a5c8a;
    --tech-accent-2: #8b2040;
    --tech-nav-0: #4a0e1c;
    --tech-nav-1: #1e3460;
}

body, h1, ul {
    margin: 0;
    padding: 0;
}

body {
    color: var(--tech-ink);
    position: relative;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 14% 9%, rgba(200, 80, 40, 0.12), transparent 36%),
        radial-gradient(circle at 86% 6%, rgba(139, 32, 64, 0.12), transparent 34%),
        radial-gradient(circle at 64% 30%, rgba(100, 140, 90, 0.1), transparent 42%),
        linear-gradient(145deg, var(--tech-bg-0), var(--tech-bg-1) 55%, var(--tech-bg-2));
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(74, 14, 28, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 14, 28, 0.05) 1px, transparent 1px);
    background-size: 28px 28px;
    z-index: -2;
    animation: grid-drift 36s linear infinite;
}

body::after {
    content: "";
    position: fixed;
    inset: -12vmax;
    pointer-events: none;
    z-index: -1;
    opacity: 0.5;
    background-image:
        radial-gradient(circle at 18% 26%, rgba(210, 90, 40, 0.2) 0 8.5vmin, transparent 9vmin),
        radial-gradient(circle at 74% 20%, rgba(200, 80, 110, 0.18) 0 6.5vmin, transparent 7vmin),
        radial-gradient(circle at 42% 76%, rgba(90, 130, 80, 0.15) 0 7.5vmin, transparent 8vmin),
        conic-gradient(from 20deg at 22% 34%, rgba(58, 92, 138, 0.18), rgba(58, 92, 138, 0.03) 66%, transparent 80%),
        conic-gradient(from 150deg at 71% 69%, rgba(139, 32, 64, 0.15), rgba(139, 32, 64, 0.03) 62%, transparent 78%),
        repeating-linear-gradient(120deg, rgba(74, 14, 28, 0.06) 0 2px, transparent 2px 46px);
    filter: saturate(105%);
    transform-origin: 50% 50%;
    animation: ml-orbit 26s ease-in-out infinite alternate;
}

nav {
    background: linear-gradient(100deg, var(--tech-nav-0), var(--tech-nav-1));
    color: #eef9ff;
    padding: 10px;
}

.navbar {
    background: linear-gradient(100deg, var(--tech-nav-0), var(--tech-nav-1));
    border-bottom: 1px solid rgba(200, 80, 80, 0.35);
}

.navbar .navbar-brand,
.navbar .nav-link,
.navbar a,
nav a {
    color: #eef9ff !important;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
nav a:hover,
nav a:focus {
    color: #f5d0d0 !important;
}

nav ul {
    list-style: none;
}

nav li {
    display: inline;
    margin-right: 20px; 
}


img {
    max-width: 100%; 
    height: auto;
    display: block; 
    margin: 0 auto; 
}

h1 {
    text-align: center;
    margin-top: 20px;
    font-size: 24px;
    color: #3a0e18;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.65);
}

h2,
h3,
h4,
h5,
h6 {
    color: #5c1830;
}

h2 {
    border-left: 3px solid var(--tech-accent);
    padding-left: 0.55rem;
}

a {
    color: var(--tech-link);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.14em;
}

a:hover,
a:focus {
    color: var(--tech-link-hover);
}

::selection {
    background: rgba(200, 80, 100, 0.2);
}

#quarto-margin-sidebar .quarto-toc,
#quarto-margin-sidebar .sidebar,
#quarto-margin-sidebar nav,
.sidebar nav[role="doc-toc"] {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
}

#quarto-margin-sidebar .nav-link {
    color: #1e3d6e !important;
}

#quarto-margin-sidebar .nav-link:hover,
#quarto-margin-sidebar .nav-link.active {
    color: #8b2040 !important;
}

.section-card {
    background: #ffffff;
    border: 1px solid rgba(139, 32, 64, 0.2);
    border-left: 4px solid var(--tech-accent);
    border-radius: 12px;
    padding: 1rem 1.1rem;
    margin: 1rem 0 1.15rem;
    box-shadow: 0 6px 18px rgba(74, 14, 28, 0.09);
}

.section-card h2,
.section-card h3 {
    margin-top: 0;
}

.section-card p:last-child,
.section-card ul:last-child,
.section-card ol:last-child {
    margin-bottom: 0;
}

main.content ul,
main.content ol {
    padding-left: 1.2rem;
    margin: 0.45rem 0 0.85rem;
}

.section-card ul,
.section-card ol {
    padding-left: 1.35rem;
}

.section-card li > ul,
.section-card li > ol {
    margin-top: 0.35rem;
}

@keyframes grid-drift {
    from {
        background-position: 0 0, 0 0;
    }

    to {
        background-position: 42px 24px, -36px 28px;
    }
}

@keyframes ml-orbit {
    0% {
        transform: translate3d(-1.5%, -1.2%, 0) rotate(0deg) scale(1);
    }

    50% {
        transform: translate3d(1.2%, 1%, 0) rotate(4deg) scale(1.04);
    }

    100% {
        transform: translate3d(-0.8%, 1.8%, 0) rotate(-3deg) scale(1.01);
    }
}

@media (prefers-reduced-motion: reduce) {
    body::before,
    body::after {
        animation: none;
    }
}