/* Project case study (STEP 05) */

.case-study {
    padding-block: var(--space-xl) var(--space-2xl);
}

.case-study__inner {
    max-width: 48rem;
}

.case-study__back {
    margin: 0 0 var(--space-xl);
}

.case-study__back a {
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.9375rem;
}

.case-study__back a:hover {
    color: var(--color-accent);
}

.case-study__header {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

.case-study__eyebrow {
    margin: 0 0 var(--space-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.case-study__title {
    margin: 0 0 var(--space-md);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.case-study__summary {
    margin: 0;
    color: var(--color-muted);
    font-size: 1.0625rem;
}

.case-study__section {
    margin-bottom: var(--space-xl);
}

.case-study__section h2 {
    margin: 0 0 var(--space-md);
    font-size: 1.25rem;
}

.case-study__section p,
.case-study__section li {
    color: var(--color-muted);
}

.case-study__section ul {
    margin: 0;
    padding-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.architecture-flow {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.architecture-flow li {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.architecture-flow li:not(:last-child) {
    margin-bottom: var(--space-xs);
    box-shadow: 0 calc(var(--space-sm) + 0.35rem) 0 -0.45rem transparent;
    position: relative;
}

.architecture-flow li:not(:last-child)::after {
    content: "↓";
    position: absolute;
    left: 50%;
    bottom: calc(-1 * var(--space-md));
    transform: translateX(-50%);
    color: var(--color-accent);
    font-size: 0.875rem;
    line-height: 1;
}

.architecture-flow__layer {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.architecture-flow p {
    margin: 0;
}

.case-study__stack {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.case-study__stack li {
    font-size: 0.8125rem;
    color: var(--color-text) !important;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
}

.case-study__links {
    list-style: none;
    margin: 0;
    padding: 0 !important;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    flex-direction: row !important;
}

.case-study__links a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.case-study__links a:hover {
    color: var(--color-accent-hover);
}