/* =========================================================
   Utility Software Widget
   Section 8.03
   ========================================================= */

.utility-widget {
    margin: 1.5rem 0;
    padding: 1.25rem;
    border-radius: 24px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.utility-problem-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1.2rem;
}

.utility-problem-btn {
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: white;
    color: #334155;
    padding: 0.55rem 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.utility-problem-btn:hover,
.utility-problem-btn.active {
    background: #0f172a;
    border-color: #0f172a;
    color: white;
    transform: translateY(-1px);
}

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

.utility-card-main {
    padding: 1.2rem;
    border-radius: 22px;
    background: white;
    border: 1px solid #e2e8f0;
}

.utility-card-main h3 {
    margin: 0.25rem 0 0.5rem;
    color: #0f172a;
}

.utility-label {
    display: inline-block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 800;
    color: #64748b;
}

.utility-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0.75rem;
    align-items: stretch;
}

.utility-flow-step {
    padding: 1rem;
    border-radius: 20px;
    background: white;
    border: 1px solid #e2e8f0;
    min-height: 115px;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.utility-flow-step.active {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(91, 95, 168, 0.16);
    border-color: rgba(91, 95, 168, 0.45);
}

.utility-flow-step strong {
    color: #5b5fa8;
}

.utility-flow-step span {
    color: #334155;
}

.utility-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    font-weight: 900;
    color: #e6004f;
}

.utility-check-box {
    padding: 1rem 1.15rem;
    border-radius: 18px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #14532d;
}

.utility-check-box p {
    margin: 0;
}

/* Small slide-only fragmentation visual */
.reveal .utility-frag-visual {
    display: grid;
    gap: 1rem;
    margin: 1.4rem auto;
    width: min(1000px, 95%);
}

.reveal .frag-row {
    display: grid;
    grid-template-columns: 110px repeat(5, 1fr);
    gap: 0.45rem;
    align-items: center;
}

.reveal .frag-row span {
    font-weight: 900;
    color: #334155;
}

.reveal .frag-block {
    min-height: 72px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 900;
    border: 2px solid #e2e8f0;
    background: white;
    color: #0f172a;
}

.reveal .frag-block.file-a {
    background: #eff6ff;
    border-color: #bfdbfe;
}

.reveal .frag-block.file-c {
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.reveal .frag-block.gap {
    background: #fff7ed;
    border-color: #fed7aa;
    color: #7c2d12;
}

.reveal .frag-block.wide {
    grid-column: span 2;
}

@media (max-width: 760px) {
    .utility-flow {
        grid-template-columns: 1fr;
    }

    .utility-arrow {
        transform: rotate(90deg);
    }

    .reveal .frag-row {
        grid-template-columns: 1fr;
    }
}