/* ==========================================================================
   haskeller.net - styles
   Function-first, decoration-last. Single typeface (Inter) + JetBrains Mono.
   Three-pillar color taxonomy: Learn (Blue), Build (Amber), Connect (Green).
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
    /* Backgrounds */
    --bg-primary:   #fafafa;   /* Workshop White */
    --bg-secondary: #f0f0f0;   /* Bench Gray */
    --bg-dark:      #1a1d23;   /* Console */

    /* Text */
    --text-primary:   #24292f; /* Lead */
    --text-secondary: #57606a; /* Graphite */
    --text-muted:     #8b949e; /* Pencil */

    /* Structure */
    --border:         #d0d7de; /* Wire */
    --border-strong:  #b8c0c8;

    /* Accents */
    --accent-learn:    #0969da; /* Knowledge Blue */
    --accent-build:    #bf8700; /* Tooling Amber */
    --accent-connect:  #1a7f37; /* Community Green */
    --accent-neutral:  #8250df; /* Slate Purple */

    /* Shadows / sizes */
    --shadow-card: 0 4px 12px rgba(36, 41, 47, 0.06);
    --shadow-card-strong: 0 6px 18px rgba(36, 41, 47, 0.09);

    --radius-sm: 4px;
    --radius:    6px;
    --radius-lg: 10px;

    --max-width: 1200px;
    --gutter: clamp(1rem, 3vw, 2rem);
    --section-pad: clamp(3rem, 7vw, 6rem);

    /* Type */
    --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

    --transition: 200ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a {
    color: var(--accent-learn);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--text-primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

p { margin: 0 0 0.9em; }

h1, h2, h3, h4 {
    font-family: var(--font-sans);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin: 0 0 0.6em;
    line-height: 1.2;
}

code, .mono {
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--text-secondary);
}

ul { margin: 0; padding: 0; list-style: none; }

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

.skip-link {
    position: absolute;
    left: -10000px;
    top: auto;
}

hr.rule {
    border: 0;
    height: 1px;
    background: var(--border);
    margin: 0 0 0.8rem;
}

/* ---------- Eyebrows / labels ---------- */
.eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-learn);
    margin: 0 0 0.6rem;
}
.eyebrow--build    { color: var(--accent-build); }
.eyebrow--connect  { color: var(--accent-connect); }
.eyebrow--neutral  { color: var(--text-secondary); }

/* small color dots */
.dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    margin-right: 6px;
    vertical-align: middle;
}
.dot--learn   { background: var(--accent-learn); }
.dot--build   { background: var(--accent-build); }
.dot--connect { background: var(--accent-connect); }
.dot--sep {
    width: 3px;
    height: 3px;
    background: var(--text-muted);
    margin: 0 8px;
}

/* ==========================================================================
   Section 1: The Workbench (hero)
   ========================================================================== */
.workbench {
    position: relative;
    padding: 1.25rem var(--gutter) var(--section-pad);
    overflow: hidden;
    border-bottom: 1px solid var(--border);
    background:
        linear-gradient(0deg, rgba(9, 105, 218, 0.012), rgba(9, 105, 218, 0.012)),
        var(--bg-primary);
}

.workbench__lambda {
    position: absolute;
    top: 6%;
    right: -2%;
    font-size: clamp(20rem, 35vw, 40rem);
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-primary);
    opacity: 0.02;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    z-index: 0;
}

/* Topbar */
.topbar {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 0.6rem 0 1.4rem;
    border-bottom: 1px solid var(--border);
}
.topbar__brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    color: var(--text-primary);
}
.topbar__logo {
    display: inline-grid;
    place-items: center;
    width: 28px; height: 28px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-connect);
}
.topbar__name { letter-spacing: -0.01em; }

.topbar__nav {
    display: flex;
    gap: 1.6rem;
    margin-left: auto;
}
.topbar__nav a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.92rem;
    padding: 0.2rem 0;
    border-bottom: 1px solid transparent;
    transition: color var(--transition), border-color var(--transition);
    text-decoration: none;
}
.topbar__nav a:hover {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

.topbar__meta { margin-left: auto; }
.topbar__shell {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.78rem;
}

@media (max-width: 880px) {
    .topbar { flex-wrap: wrap; gap: 0.8rem; }
    .topbar__nav { order: 3; flex-basis: 100%; margin-left: 0; flex-wrap: wrap; gap: 1rem; }
    .topbar__meta { margin-left: auto; }
}

/* Hero grid */
.workbench__grid {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    padding-top: clamp(2rem, 6vw, 4.5rem);
    align-items: start;
}
@media (max-width: 880px) {
    .workbench__grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.workbench__main { min-width: 0; }

.workbench__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin: 0.4rem 0 0.4rem;
    line-height: 1.05;
}

.workbench__tagline {
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 38ch;
    margin: 0 0 2.5rem;
}

/* Pillars */
.pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
@media (max-width: 720px) { .pillars { grid-template-columns: 1fr; } }

.pillar {
    display: grid;
    gap: 0.45rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-top: 3px solid var(--text-secondary);
    border-radius: var(--radius);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.pillar--learn   { border-top-color: var(--accent-learn); }
.pillar--build   { border-top-color: var(--accent-build); }
.pillar--connect { border-top-color: var(--accent-connect); }

.pillar:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    text-decoration: none;
}
.pillar--learn:hover   { border-color: var(--accent-learn); }
.pillar--build:hover   { border-color: var(--accent-build); }
.pillar--connect:hover { border-color: var(--accent-connect); }

.pillar__icon {
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}
.pillar--learn .pillar__icon   { color: var(--accent-learn); }
.pillar--build .pillar__icon   { color: var(--accent-build); }
.pillar--connect .pillar__icon { color: var(--accent-connect); }

.pillar__label {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
}
.pillar__desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}
.pillar__count {
    margin-top: 0.4rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.78rem;
}
.pillar__count strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Latest sidebar */
.latest {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.4rem;
}
.latest__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 0.9rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}
.latest__title {
    margin: 0;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
}
.latest__all {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--accent-learn);
}
.latest__list {
    display: grid;
    gap: 1rem;
}
.latest__item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 0.55rem 0.9rem;
    align-items: baseline;
}
.latest__date {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    white-space: nowrap;
}
.latest__link {
    grid-column: 1 / -1;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    line-height: 1.45;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), color var(--transition);
}
.latest__link:hover {
    border-bottom-color: currentColor;
    color: var(--text-primary);
}
.latest__cat {
    grid-column: 1 / -1;
    justify-self: start;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.latest__cat--learn   { color: var(--accent-learn);   border-color: rgba(9, 105, 218, 0.3); }
.latest__cat--build   { color: var(--accent-build);   border-color: rgba(191, 135, 0, 0.3); }
.latest__cat--connect { color: var(--accent-connect); border-color: rgba(26, 127, 55, 0.3); }

/* ==========================================================================
   Section heads (shared)
   ========================================================================== */
.section__head {
    max-width: var(--max-width);
    margin: 0 auto clamp(1.5rem, 3vw, 2.4rem);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.5rem 2rem;
    align-items: end;
}
.section__head--simple { grid-template-columns: 1fr; }

.section__head-text { max-width: 60ch; }

.section__title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0.1rem 0 0.4rem;
    color: var(--text-primary);
}
.section__lede {
    color: var(--text-secondary);
    margin: 0;
    font-size: 1rem;
    max-width: 60ch;
}

@media (max-width: 720px) {
    .section__head { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Section 2-3: Resources Grid
   ========================================================================== */
.resources {
    padding: var(--section-pad) var(--gutter);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

/* Filter bar */
.filterbar {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    justify-self: end;
}
.filterbar__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background var(--transition), color var(--transition);
}
.filterbar__btn:hover { color: var(--text-primary); }
.filterbar__btn.is-active {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: calc(0.45rem - 1px) calc(0.85rem - 1px);
    box-shadow: 0 1px 2px rgba(36, 41, 47, 0.05);
}
.filterbar__count {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding-left: 0.2rem;
}

.resource-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.resource {
    position: relative;
    display: grid;
    gap: 0.55rem;
    padding: 1.2rem 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    border-radius: var(--radius-sm);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.resource[data-pillar="learn"]   { border-left-color: var(--accent-learn); }
.resource[data-pillar="build"]   { border-left-color: var(--accent-build); }
.resource[data-pillar="connect"] { border-left-color: var(--accent-connect); }

.resource:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}
.resource[data-pillar="learn"]:hover   { border-color: var(--accent-learn); }
.resource[data-pillar="build"]:hover   { border-color: var(--accent-build); }
.resource[data-pillar="connect"]:hover { border-color: var(--accent-connect); }

.resource__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.resource__cat {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
}
.resource[data-pillar="learn"]   .resource__cat { color: var(--accent-learn); }
.resource[data-pillar="build"]   .resource__cat { color: var(--accent-build); }
.resource[data-pillar="connect"] .resource__cat { color: var(--accent-connect); }

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

.resource__title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.01em;
}
.resource__title a {
    color: var(--text-primary);
    text-decoration: none;
}
.resource__title a:hover { color: var(--text-primary); border-bottom: 1px solid currentColor; }

.resource__desc {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.resource__desc code {
    font-size: 0.85em;
    background: var(--bg-secondary);
    padding: 0.05rem 0.3rem;
    border-radius: 3px;
    color: var(--text-primary);
}

.resource__meta {
    margin-top: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.resource__author { color: var(--text-secondary); }
.resource__sep    { color: var(--text-muted); }

.resource[data-hidden="true"] { display: none; }

.resources__empty {
    max-width: var(--max-width);
    margin: 2rem auto 0;
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
}
.resources__empty[hidden] { display: none; }

/* ==========================================================================
   Section 4: Toolkit
   ========================================================================== */
.toolkit {
    padding: var(--section-pad) var(--gutter);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.rule {
    max-width: var(--max-width);
    margin: 0 auto;
}
.rule__label {
    max-width: var(--max-width);
    margin: 0.5rem auto 1.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.toolcards {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.toolcard {
    background: var(--bg-secondary);
    padding: 1.2rem 1.3rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    display: grid;
    gap: 0.5rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.toolcard:hover {
    transform: translateY(-2px);
    border-color: var(--border);
    box-shadow: var(--shadow-card);
}

.toolcard__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    margin: 0;
}
.toolcard__name {
    margin: 0;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.version {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    padding: 0.1rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    line-height: 1.4;
}

.toolcard__purpose {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
    flex: 1;
}

.toolcard__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    margin-top: 0.2rem;
}
.toolcard__cmd {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 60%;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 999px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.badge--recommended {
    color: var(--accent-connect);
    border-color: rgba(26, 127, 55, 0.3);
    background: rgba(26, 127, 55, 0.06);
}

/* ==========================================================================
   Section 5: Community Board
   ========================================================================== */
.community {
    padding: var(--section-pad) var(--gutter);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

.community__grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 2rem;
}
@media (max-width: 880px) {
    .community__grid { grid-template-columns: 1fr; }
}

.subhead {
    margin: 0 0 1rem;
    padding: 0 0 0.6rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.highlights {
    display: grid;
    gap: 0.9rem;
}

.highlight {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 1rem;
    align-items: start;
    padding: 1rem 1.25rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.highlight:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
    border-color: var(--border-strong);
}

.avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.72rem;
    color: #fff;
    letter-spacing: 0.02em;
}
.avatar--learn   { background: var(--accent-learn); }
.avatar--build   { background: var(--accent-build); }
.avatar--connect { background: var(--accent-connect); }

.highlight__title {
    margin: 0 0 0.25rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: -0.01em;
}
.highlight__title a { color: var(--text-primary); }
.highlight__title a:hover { color: var(--accent-learn); text-decoration: none; }
.highlight__meta {
    margin: 0 0 0.4rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
}
.highlight__meta span:first-child { color: var(--text-secondary); }
.highlight__excerpt {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}
.highlight__excerpt code {
    background: var(--bg-secondary);
    padding: 0.05rem 0.3rem;
    border-radius: 3px;
    color: var(--text-primary);
}

/* Quick links */
.community__links {
    align-self: start;
}
.quicklinks {
    display: grid;
    gap: 0.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-primary);
}
.quicklink {
    display: grid;
    grid-template-columns: 24px 1fr auto;
    gap: 0.8rem;
    align-items: center;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
}
.quicklink:last-child { border-bottom: none; }
.quicklink:hover { background: var(--bg-secondary); text-decoration: none; }

.quicklink__icon { color: var(--text-secondary); display: inline-flex; }
.quicklink__name { font-weight: 500; font-size: 0.95rem; }
.quicklink__hint { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.76rem; }

.quicklink[data-pillar="learn"]:hover   .quicklink__icon { color: var(--accent-learn); }
.quicklink[data-pillar="build"]:hover   .quicklink__icon { color: var(--accent-build); }
.quicklink[data-pillar="connect"]:hover .quicklink__icon { color: var(--accent-connect); }
.quicklink[data-pillar="learn"]:hover   .quicklink__name { color: var(--accent-learn); }
.quicklink[data-pillar="build"]:hover   .quicklink__name { color: var(--accent-build); }
.quicklink[data-pillar="connect"]:hover .quicklink__name { color: var(--accent-connect); }

/* Contribute */
.contribute {
    grid-column: 1 / -1;
    margin-top: 1rem;
    background: var(--bg-secondary);
    border-top: 2px solid var(--accent-neutral);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 3vw, 2.2rem);
}
.contribute__inner {
    max-width: 70ch;
}
.contribute__title {
    margin: 0.2rem 0 0.5rem;
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}
.contribute__body {
    color: var(--text-secondary);
    margin: 0 0 1rem;
}
.contribute__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem 1rem;
    align-items: center;
}
.contribute__signature {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    margin-left: auto;
}
.contribute__signature span { color: var(--accent-neutral); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.btn--primary {
    background: var(--accent-neutral);
    color: #fff;
}
.btn--primary:hover {
    background: #6f3ec9;
    color: #fff;
    text-decoration: none;
}
.btn--ghost {
    background: var(--bg-primary);
    border-color: var(--border);
    color: var(--text-primary);
}
.btn--ghost:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
    text-decoration: none;
}

/* ==========================================================================
   Section 6: Footer
   ========================================================================== */
.footer {
    background: var(--bg-dark);
    color: #c5cdd6;
    padding: clamp(3rem, 6vw, 5rem) var(--gutter) 1.6rem;
}

.footer__top {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 3fr;
    gap: clamp(2rem, 4vw, 3rem);
    padding-bottom: 2.5rem;
}
@media (max-width: 880px) {
    .footer__top { grid-template-columns: 1fr; }
}

.footer__brand {
    display: grid;
    gap: 0.4rem;
    align-content: start;
}
.footer__logo {
    display: grid;
    place-items: center;
    width: 48px; height: 48px;
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1.6rem;
    color: var(--text-secondary);
}
.footer__name {
    color: #fff;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
}
.footer__tag {
    color: #8b949e;
    font-size: 0.9rem;
    max-width: 32ch;
    margin: 0;
}

.footer__cols {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(1rem, 3vw, 2rem);
}
@media (max-width: 720px) {
    .footer__cols { grid-template-columns: repeat(2, 1fr); }
}

.footer__col h4 {
    color: #fff;
    margin: 0 0 0.8rem;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.footer__col ul { display: grid; gap: 0.4rem; }
.footer__col a {
    color: #8b949e;
    font-size: 0.92rem;
    text-decoration: none;
    transition: color var(--transition);
}
.footer__col a:hover { color: #fff; text-decoration: none; }

.footer__bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-top: 1.4rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: #57606a;
    font-size: 0.82rem;
}
.footer__sig {
    color: #57606a;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}
.footer__year { color: #57606a; }

@media (max-width: 720px) {
    .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
    .pillar:hover,
    .resource:hover,
    .toolcard:hover,
    .highlight:hover {
        transform: none;
    }
    html { scroll-behavior: auto; }
}