.toolkit-page .toolkit-hero {
    padding: 4.75rem 0 2.75rem;
}

.toolkit-shell {
    display: grid;
    gap: 1.8rem;
}

.toolkit-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
    gap: 1.4rem;
    align-items: end;
}

.toolkit-note {
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(22, 32, 45, 0.08);
    background: rgba(255, 255, 255, 0.56);
    box-shadow: var(--shadow-soft);
}

.toolkit-note span {
    display: block;
    color: var(--text-muted);
    font-size: 0.77rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

.toolkit-note p {
    color: var(--heading);
    font-size: 1rem;
    line-height: 1.5;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.filter-btn {
    min-height: 2.8rem;
    padding: 0.75rem 1rem;
    border-radius: 999px;
    border: 1px solid rgba(22, 32, 45, 0.1);
    background: rgba(255, 255, 255, 0.56);
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    transition:
        transform var(--transition-fast),
        background-color var(--transition-base),
        border-color var(--transition-base),
        color var(--transition-base);
}

.filter-btn:hover,
.filter-btn:focus-visible,
.filter-btn.active {
    transform: translateY(-1px);
    background: rgba(31, 79, 143, 0.12);
    border-color: rgba(31, 79, 143, 0.16);
    color: var(--accent-strong);
}

.toolkit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.2rem;
}

.guide-card {
    display: grid;
    gap: 1.15rem;
    align-content: start;
    min-height: 290px;
}

.guide-media {
    position: relative;
    overflow: hidden;
    border-radius: calc(var(--radius-md) - 6px);
    border: 1px solid rgba(22, 32, 45, 0.08);
    background: rgba(255, 255, 255, 0.7);
    min-height: 170px;
}

.guide-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.96;
    mix-blend-mode: multiply;
}

.guide-card[hidden] {
    display: none;
}

.guide-card.placeholder {
    border-style: dashed;
    background: rgba(255, 255, 255, 0.42);
}

.guide-icon {
    width: 3rem;
    height: 3rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    background: rgba(31, 79, 143, 0.12);
    color: var(--accent-strong);
    font-size: 1.35rem;
    font-weight: 800;
}

.guide-info {
    display: grid;
    gap: 0.85rem;
}

.category-tag {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background: rgba(31, 79, 143, 0.09);
    color: var(--accent-strong);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.guide-info h3 {
    color: var(--heading);
    font-size: 1.45rem;
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.guide-info p {
    color: var(--text-muted);
}

.read-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    font-weight: 800;
}

.read-link::after {
    content: "->";
    transition: transform var(--transition-fast);
}

.read-link:hover::after,
.read-link:focus-visible::after {
    transform: translateX(4px);
}

.article-shell {
    padding: 4.75rem 0 5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1.5rem;
    color: var(--accent-strong);
    font-size: 0.9rem;
    font-weight: 800;
}

.guide-content {
    max-width: var(--content);
    margin: 0 auto;
}

.article-hero {
    padding: 2rem 0 2.5rem;
}

.article-title {
    font-size: clamp(3rem, 7vw, 5.4rem);
    line-height: 0.95;
}

.article-subtitle {
    margin-top: 1.2rem;
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 50ch;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.4rem;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.64);
    border: 1px solid rgba(22, 32, 45, 0.08);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.article-panel,
.callout,
.placeholder-frame,
.download-box,
.command-block,
.code-sample {
    border-radius: var(--radius-md);
    border: 1px solid rgba(22, 32, 45, 0.08);
    box-shadow: var(--shadow-soft);
}

.article-panel {
    padding: 1.4rem;
    background: rgba(255, 255, 255, 0.64);
}

.article-layout {
    display: grid;
    gap: 1.8rem;
}

.guide-content section {
    display: grid;
    gap: 1rem;
    margin-top: 2.25rem;
}

.guide-content h2 {
    font-family: "Fraunces", Georgia, serif;
    color: var(--heading);
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.guide-content h3 {
    color: var(--heading);
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.guide-content p,
.guide-content li {
    color: var(--text-muted);
    font-size: 1rem;
}

.guide-content ul,
.guide-content ol {
    display: grid;
    gap: 0.8rem;
    padding-left: 1.2rem;
}

.guide-content li::marker {
    color: var(--accent);
}

.callout {
    padding: 1.25rem 1.35rem;
    background: linear-gradient(180deg, rgba(31, 79, 143, 0.08), rgba(255, 255, 255, 0.72));
}

.callout strong {
    display: block;
    color: var(--heading);
    margin-bottom: 0.35rem;
}

.placeholder-frame {
    position: relative;
    min-height: 300px;
    padding: 1.4rem;
    background:
        linear-gradient(145deg, rgba(31, 79, 143, 0.12), rgba(255, 255, 255, 0.1)),
        linear-gradient(135deg, #e0d9cd 0%, #f5f1ea 52%, #d8dde2 100%);
    display: flex;
    align-items: flex-end;
}

.placeholder-frame img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.96;
    mix-blend-mode: multiply;
}

.placeholder-frame span {
    position: relative;
    z-index: 1;
    color: var(--heading);
    font-weight: 800;
}

.code-sample {
    padding: 1rem 1.15rem;
    background: rgba(255, 255, 255, 0.8);
}

.code-sample code,
.command-block code,
.inline-code {
    font-family: "JetBrains Mono", "Cascadia Code", monospace;
}

.command-block {
    padding: 1.1rem 1.2rem;
    background: #18212d;
    color: #f7f9fb;
    overflow-x: auto;
}

.command-block code {
    white-space: pre-wrap;
}

.download-box {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.68);
}

.download-box p {
    margin-top: 0.5rem;
}

.download-box .btn {
    margin-top: 1rem;
}

.step-grid {
    display: grid;
    gap: 1rem;
}

.step-card {
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(22, 32, 45, 0.08);
    background: rgba(255, 255, 255, 0.58);
}

.step-card span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: rgba(31, 79, 143, 0.12);
    color: var(--accent-strong);
    font-weight: 800;
    margin-bottom: 0.75rem;
}

@media (max-width: 980px) {
    .toolkit-intro,
    .toolkit-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .toolkit-page .toolkit-hero,
    .article-shell {
        padding-top: 4rem;
    }

    .guide-content {
        width: 100%;
    }
}