/* ===========================================
   Foothold — 365 Days of Hacking
   Extends the 0x1Ak4sh portfolio theme
   Primary: #a4ff91 (Neon Green)
   Background: #0b1115 / #1d252c
   Font: Space Grotesk + JetBrains Mono
   =========================================== */

/* ── Reset / Base ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --green: #a4ff91;
    --green-dim: rgba(164, 255, 145, 0.15);
    --green-glow: rgba(164, 255, 145, 0.35);
    --bg: #0b1115;
    --card: #1a2028;
    --card-border: rgba(164, 255, 145, 0.08);
    --card-hover: rgba(164, 255, 145, 0.12);
    --text: #e8eaf0;
    --text-muted: rgba(232, 234, 240, 0.5);
    --text-dim: rgba(232, 234, 240, 0.35);
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Space Grotesk', sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body.foothold-page {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── Reading Progress ─────────────────────── */
#readingProgress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--green), #00d4ff);
    z-index: 1000;
    transition: width 0.1s linear;
}

/* ── Navigation ───────────────────────────── */
.article-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 2rem;
    background: rgba(11, 17, 21, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(164, 255, 145, 0.08);
    transition: background var(--transition);
}
.article-nav.scrolled {
    background: rgba(11, 17, 21, 0.97);
}
.nav-left { display: flex; align-items: center; gap: 1.2rem; }
.nav-back {
    display: flex; align-items: center; gap: 0.5rem;
    color: var(--text-muted); font-size: 0.9rem; text-decoration: none;
    transition: color var(--transition);
}
.nav-back:hover { color: var(--green); }
.nav-logo {
    font-family: var(--mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--green);
    text-decoration: none;
    letter-spacing: 0.05em;
}
.nav-right { display: flex; align-items: center; gap: 1rem; }
.nav-badge {
    display: flex; align-items: center; gap: 0.4rem;
    background: var(--green-dim);
    border: 1px solid rgba(164, 255, 145, 0.2);
    color: var(--green);
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem;
    border-radius: 20px;
}
.random-btn {
    display: flex; align-items: center; gap: 0.5rem;
    background: var(--green);
    color: #0b1115;
    border: none;
    border-radius: 8px;
    padding: 0.45rem 1rem;
    font-family: var(--sans);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.random-btn:hover {
    background: #b8ffa8;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--green-glow);
}
.random-btn i { transition: transform 0.3s; }
.random-btn:hover i { transform: rotate(60deg); }

/* ── Hero Section ─────────────────────────── */
.foothold-hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    overflow: hidden;
}
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(164,255,145,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(164,255,145,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    width: 100%;
    text-align: center;
}
.hero-eyebrow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.eyebrow-badge {
    background: var(--green-dim);
    border: 1px solid rgba(164, 255, 145, 0.25);
    color: var(--green);
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    display: flex; align-items: center; gap: 0.4rem;
}
.eyebrow-year {
    color: var(--text-muted);
    font-family: var(--mono);
    font-size: 0.85rem;
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 7rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}
.title-accent {
    background: linear-gradient(135deg, var(--green) 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
}
.title-accent::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), #00d4ff, transparent);
    border-radius: 2px;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}
.hero-highlight {
    color: var(--green);
    font-weight: 600;
    font-family: var(--mono);
}

/* Stats row */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}
.stat-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.2rem 2rem;
    min-width: 100px;
    transition: all var(--transition);
}
.stat-card:hover {
    border-color: rgba(164,255,145,0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(164,255,145,0.1);
}
.stat-num {
    font-family: var(--mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--green);
    line-height: 1;
}
.stat-lbl {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.3rem;
}

/* Featured machine card */
.featured-inner {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.featured-avatar {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    flex-shrink: 0;
    object-fit: contain;
    background: rgba(164,255,145,0.05);
    border: 1px solid rgba(164,255,145,0.12);
}
.featured-inner-text { flex: 1; min-width: 0; }
.featured-machine {
    background: var(--card);
    border: 1px solid rgba(164,255,145,0.2);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: left;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
    max-width: 700px;
    margin: 0 auto;
    cursor: pointer;
}
.featured-machine::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), #00d4ff);
}
.featured-machine:hover {
    border-color: rgba(164,255,145,0.4);
    box-shadow: 0 12px 40px rgba(164,255,145,0.12);
    transform: translateY(-2px);
}
.featured-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    display: flex; align-items: center; gap: 0.4rem;
}
.featured-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}
.featured-day {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-dim);
}
.featured-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    flex: 1;
}
.featured-summary {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.featured-tags {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    margin-bottom: 1rem;
}
.featured-cta {
    display: inline-flex;
    align-items: center; gap: 0.5rem;
    color: var(--green);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: gap var(--transition);
}
.featured-cta:hover { gap: 0.75rem; }

/* ── Story Section ─────────────────────────── */
.story-section {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
}
.story-inner {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2.5rem;
    position: relative;
}
.story-inner::before {
    content: '';
    position: absolute;
    top: 0; left: 2.5rem; right: 2.5rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-glow), transparent);
}
.story-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 1.5rem;
    letter-spacing: 0.02em;
}
.story-img {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--card-border);
    display: block;
    margin-bottom: 1.5rem;
}
.story-text {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-muted);
    margin: 0 0 1rem;
}
.story-text:last-of-type { margin-bottom: 0; }
.story-text strong { color: var(--text); }
.story-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}
.story-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    border: 1px solid;
    transition: all var(--transition);
}
.story-link:hover { transform: translateY(-1px); }
.story-htb {
    color: var(--green);
    border-color: rgba(164,255,145,0.25);
    background: rgba(164,255,145,0.06);
}
.story-htb:hover { background: rgba(164,255,145,0.12); }
.story-x {
    color: #1d9bf0;
    border-color: rgba(29,155,240,0.25);
    background: rgba(29,155,240,0.06);
}
.story-x:hover { background: rgba(29,155,240,0.12); }

@media (max-width: 768px) {
    .story-section { padding: 0 1rem 1rem; }
    .story-inner { padding: 1.5rem; }
    .story-title { font-size: 1.4rem; margin-bottom: 1rem; }
    .story-img { margin-bottom: 1rem; }
    .story-text { font-size: 0.95rem; }
    .story-links { gap: 0.75rem; margin-top: 1rem; }
    .story-link { font-size: 0.85rem; padding: 0.4rem 0.9rem; }
}

/* ── Filter/Search ────────────────────────── */
.filter-section {
    position: sticky;
    top: 56px;
    z-index: 50;
    background: rgba(11, 17, 21, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(164, 255, 145, 0.06);
    padding: 1rem 2rem;
}
.filter-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}
.search-wrap {
    position: relative;
    flex: 1;
    min-width: 220px;
    max-width: 380px;
}
.search-icon {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    font-size: 0.85rem;
    pointer-events: none;
}
#searchInput {
    width: 100%;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 2.2rem 0.6rem 2.4rem;
    color: var(--text);
    font-family: var(--sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}
#searchInput:focus {
    border-color: rgba(164,255,145,0.4);
    box-shadow: 0 0 0 3px rgba(164,255,145,0.08);
}
#searchInput::placeholder { color: var(--text-dim); }
.search-clear {
    position: absolute;
    right: 0.7rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 0.25rem;
    transition: color var(--transition);
}
.search-clear:hover { color: var(--text-muted); }

.filter-pills {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}
.filter-pills-scroll {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
}
.filter-pills-scroll::-webkit-scrollbar { display: none; }
.pill-label {
    font-size: 0.78rem;
    color: var(--text-dim);
    white-space: nowrap;
    font-family: var(--mono);
}
.pill {
    background: var(--card);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-family: var(--sans);
    font-size: 0.78rem;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.pill:hover { border-color: rgba(164,255,145,0.3); color: var(--text); }
.pill.active {
    background: var(--green-dim);
    border-color: rgba(164,255,145,0.4);
    color: var(--green);
}
.pill.easy.active { background: rgba(0,200,100,0.15); border-color: rgba(0,200,100,0.4); color: #00c864; }
.pill.medium.active { background: rgba(255,165,0,0.15); border-color: rgba(255,165,0,0.4); color: #ffa500; }
.pill.hard.active { background: rgba(220,50,50,0.15); border-color: rgba(220,50,50,0.4); color: #ff4444; }
.pill.insane.active { background: rgba(180,0,255,0.15); border-color: rgba(180,0,255,0.4); color: #c044ff; }

.results-count {
    margin-left: auto;
    font-size: 0.82rem;
    color: var(--text-dim);
    font-family: var(--mono);
    white-space: nowrap;
}
.results-count strong { color: var(--green); }

/* Tag cloud */
.tag-cloud-wrap {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    max-width: 1400px;
    margin: 0.75rem auto 0;
    flex-wrap: wrap;
}
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* ── Machines Grid ────────────────────────── */
.machines-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 2rem 4rem;
}
.machines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

/* ── Machine Card ─────────────────────────── */
.machine-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.machine-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--green-dim);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}
.machine-card:hover::before { opacity: 1; }
.machine-card:hover {
    border-color: rgba(164,255,145,0.3);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(164,255,145,0.1);
}

.card-top {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}
.card-avatar {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    flex-shrink: 0;
    object-fit: contain;
    background: rgba(164,255,145,0.05);
    border: 1px solid rgba(164,255,145,0.1);
}
.card-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-dim);
}
.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
}
.card-day {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}
.card-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
    transition: color var(--transition);
    flex: 1;
}
.machine-card:hover .card-name { color: var(--green); }

/* Difficulty badges */
.badge-diff {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
    flex-shrink: 0;
}
.badge-diff.easy   { background: rgba(0,200,100,0.15); color: #00c864; border: 1px solid rgba(0,200,100,0.3); }
.badge-diff.medium { background: rgba(255,165,0,0.15); color: #ffa500; border: 1px solid rgba(255,165,0,0.3); }
.badge-diff.hard   { background: rgba(220,50,50,0.15); color: #ff4444; border: 1px solid rgba(220,50,50,0.3); }
.badge-diff.insane { background: rgba(180,0,255,0.15); color: #c044ff; border: 1px solid rgba(180,0,255,0.3); }
.badge-diff.unknown { background: rgba(100,100,100,0.15); color: #999; border: 1px solid rgba(100,100,100,0.3); }

.card-os {
    font-size: 0.72rem;
    color: var(--text-dim);
    display: flex; align-items: center; gap: 0.3rem;
}

.card-summary {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.6;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-summary.empty {
    color: var(--text-dim);
    font-style: italic;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}
.tag-chip {
    font-size: 0.68rem;
    font-family: var(--mono);
    background: rgba(164,255,145,0.07);
    border: 1px solid rgba(164,255,145,0.12);
    color: rgba(164,255,145,0.7);
    padding: 0.18rem 0.5rem;
    border-radius: 20px;
    transition: all var(--transition);
    cursor: pointer;
}
.tag-chip:hover, .tag-chip.active {
    background: rgba(164,255,145,0.15);
    border-color: rgba(164,255,145,0.35);
    color: var(--green);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(255,255,255,0.04);
}
.card-cta {
    font-size: 0.75rem;
    color: var(--green);
    display: flex; align-items: center; gap: 0.35rem;
    font-weight: 600;
    opacity: 0;
    transition: opacity var(--transition);
}
.machine-card:hover .card-cta { opacity: 1; }

.card-cves {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: #ff6b6b;
    opacity: 0.7;
}

/* ── No results ───────────────────────────── */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-dim);
}
.no-results i { font-size: 3rem; margin-bottom: 1rem; opacity: 0.4; }
.no-results p { margin-bottom: 1.5rem; }

/* ── Load More ────────────────────────────── */
.load-more-wrap { text-align: center; margin-top: 2rem; }
.load-more-btn {
    background: var(--card);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-family: var(--sans);
    font-size: 0.9rem;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center; gap: 0.5rem;
    transition: all var(--transition);
}
.load-more-btn:hover {
    border-color: rgba(164,255,145,0.3);
    color: var(--green);
}

/* ── Modal ────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}
.modal-box {
    background: #1a2028;
    border: 1px solid rgba(164,255,145,0.2);
    border-radius: 16px;
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.modal-overlay.open .modal-box { transform: translateY(0); }

.modal-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), #00d4ff);
    border-radius: 16px 16px 0 0;
}
.modal-close {
    position: absolute;
    top: 1.25rem; right: 1.25rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-muted);
    width: 32px; height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    transition: all var(--transition);
}
.modal-close:hover { background: rgba(255,255,255,0.1); color: var(--text); }

.modal-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}
.modal-avatar {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    flex-shrink: 0;
    object-fit: contain;
    background: rgba(164,255,145,0.05);
    border: 1px solid rgba(164,255,145,0.12);
}
.modal-header-text { flex: 1; min-width: 0; }
.modal-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}
.modal-day {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}
.modal-os {
    font-size: 0.75rem;
    color: var(--text-dim);
    display: flex; align-items: center; gap: 0.3rem;
}
.modal-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.modal-cves {
    margin-bottom: 1rem;
    display: flex; gap: 0.5rem; flex-wrap: wrap;
}
.cve-chip {
    font-family: var(--mono);
    font-size: 0.7rem;
    background: rgba(255,70,70,0.1);
    border: 1px solid rgba(255,70,70,0.25);
    color: #ff6b6b;
    padding: 0.2rem 0.55rem;
    border-radius: 6px;
}

.modal-summary {
    color: var(--text-muted);
    line-height: 1.75;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.modal-tags {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    flex-wrap: wrap;
}
.modal-note {
    font-size: 0.75rem;
    color: var(--text-dim);
    display: flex; align-items: center; gap: 0.4rem;
}
.modal-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.modal-link {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--transition);
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    border: 1px solid;
}
.modal-link:hover { opacity: 0.8; }
.modal-htb-link {
    color: var(--green);
    border-color: rgba(164,255,145,0.25);
    background: rgba(164,255,145,0.06);
}
.modal-tweet-link {
    color: #1d9bf0;
    border-color: rgba(29,155,240,0.25);
    background: rgba(29,155,240,0.06);
}

/* ── Image Lightbox ────────────────────────── */
.img-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0,0,0,0.9);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    cursor: zoom-out;
}
.img-lightbox.open {
    opacity: 1;
    pointer-events: all;
}
.img-lightbox-content {
    max-width: 95vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    cursor: default;
}
.img-lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: background 0.2s;
    z-index: 10;
}
.img-lightbox-close:hover { background: rgba(255,255,255,0.2); }

@media (max-width: 768px) {
    .img-lightbox { padding: 1rem; }
    .img-lightbox-close { top: 1rem; right: 1rem; width: 36px; height: 36px; }
}

/* ── Toast ────────────────────────────────── */
.toast {
    position: fixed;
    bottom: 2rem; left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: #1a2028;
    border: 1px solid rgba(164,255,145,0.3);
    color: var(--text);
    font-size: 0.875rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    z-index: 300;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1), opacity 0.35s;
    opacity: 0;
    white-space: nowrap;
    box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ── Scrollbar ────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(164,255,145,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(164,255,145,0.35); }

/* ── Tag cloud toggle (mobile) ─────────────── */
.tag-cloud-toggle { display: none; }
.tag-toggle-btn {
    display: flex; align-items: center; gap: 0.4rem;
    background: none; border: 1px solid var(--card-border);
    color: var(--text-muted); font-family: var(--mono);
    font-size: 0.78rem; padding: 0.3rem 0.7rem;
    border-radius: 20px; cursor: pointer;
    width: 100%; justify-content: center;
    transition: all var(--transition);
}
.tag-toggle-btn:hover { border-color: rgba(164,255,145,0.3); color: var(--green); }
.tag-toggle-btn .fa-chevron-down { transition: transform 0.25s ease; }
.tag-toggle-btn.open .fa-chevron-down { transform: rotate(180deg); }

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
    .article-nav { padding: 0.75rem 1.25rem; }
    .nav-badge { display: none; }
    .random-btn span { display: none; }
    .foothold-hero { padding: 5rem 1.25rem 3rem; min-height: auto; }
    .hero-stats { gap: 0.5rem; }
    .stat-card { padding: 0.65rem 0.9rem; min-width: 70px; }
    .stat-num { font-size: 1.4rem; }
    .stat-lbl { font-size: 0.65rem; }
    .filter-section { padding: 0.5rem 0.75rem; top: 50px; }
    .filter-inner { gap: 0.5rem; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
    .filter-inner::-webkit-scrollbar { display: none; }
    .search-wrap { max-width: 100%; min-width: 140px; flex: 1; }
    #searchInput { padding: 0.45rem 1.8rem 0.45rem 2rem; font-size: 0.82rem; }
    .filter-pills { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; flex-shrink: 0; }
    .filter-pills::-webkit-scrollbar { display: none; }
    .pill { font-size: 0.72rem; padding: 0.2rem 0.55rem; }
    .pill-label { font-size: 0.7rem; }
    .results-count { display: none; }
    .tag-cloud-toggle { display: block; margin-top: 0.5rem; }
    .tag-cloud-wrap { display: none; margin-top: 0.4rem; }
    .tag-cloud-wrap.open { display: flex; }
    .machines-section { padding: 0.75rem 0.75rem 2rem; }
    .machines-grid { grid-template-columns: 1fr; gap: 0.6rem; }
    .modal-box { padding: 1.25rem; margin: 0.5rem; }
    .modal-title { font-size: 1.2rem; }
    .card-avatar { width: 36px; height: 36px; }
    .featured-avatar { width: 40px; height: 40px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 3rem; }
    .hero-stats { flex-direction: row; justify-content: center; }
    .stat-card { padding: 0.75rem 1rem; }
    .stat-num { font-size: 1.5rem; }
}

/* ── Animations ───────────────────────────── */
@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes countUp {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.machine-card {
    animation: fadeSlideUp 0.4s ease both;
}

/* Stagger delay via JS */
.machine-card.reveal { opacity: 1; transform: none; }

/* Active tag filter highlight */
.tag-chip.filter-active {
    background: rgba(164,255,145,0.2);
    border-color: var(--green);
    color: var(--green);
}