/* Shared styling for the use-case walkthrough pages.
   Layered on top of ../style.css (which provides tokens, nav, footer, buttons). */

.uc-hero {
    padding: 7rem 0 3rem;
    text-align: center;
}
.uc-hero .section-badge { margin-bottom: 1rem; }
.uc-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1.1;
    margin: 0 0 1rem;
}
.uc-hero p.lead {
    max-width: 680px;
    margin: 0 auto;
    font-size: 1.2rem;
    line-height: 1.7;
    opacity: .85;
}
.uc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    justify-content: center;
    margin: 1.75rem 0 0;
}
.uc-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: .8rem;
    padding: .35rem .7rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--accent-wash);
}
.uc-body {
    max-width: 820px;
    margin: 0 auto;
    padding: 1rem 0 4rem;
    line-height: 1.75;
}
.uc-body h2 {
    font-size: 1.7rem;
    margin: 3rem 0 1rem;
    scroll-margin-top: 90px;
}
.uc-body h3 { font-size: 1.2rem; margin: 2rem 0 .6rem; }
.uc-body p { margin: 0 0 1.1rem; opacity: .92; }
.uc-body ul, .uc-body ol { margin: 0 0 1.2rem 1.3rem; line-height: 1.9; }
.uc-body code {
    font-family: 'JetBrains Mono', monospace;
    font-size: .88em;
    padding: .12em .42em;
    border-radius: 5px;
    background: var(--bg-tertiary);
}

.uc-step {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.4rem 1.6rem;
    margin: 1.5rem 0;
    background: var(--surface-sunken);
}
.uc-step .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.9rem; height: 1.9rem;
    border-radius: 50%;
    background: var(--primary);
    color: #fff; font-weight: 700; font-size: .95rem;
    margin-right: .6rem;
}
.uc-step h3 { display: inline; margin: 0; font-size: 1.15rem; }

.uc-cmd, .uc-out {
    font-family: 'JetBrains Mono', monospace;
    font-size: .84rem;
    line-height: 1.55;
    border-radius: 10px;
    padding: 1rem 1.15rem;
    overflow-x: auto;
    margin: 1rem 0;
    white-space: pre;
}
.uc-cmd {
    background: var(--term-bg);
    color: var(--term-fg);
    border: 1px solid var(--term-border);
}
.uc-cmd .p { color: var(--term-prompt); }
.uc-out {
    background: var(--surface-sunken);
    border: 1px solid var(--border-color);
    color: inherit;
}
.uc-out .ok { color: var(--confidence-resolved); font-weight: 600; }
.uc-out .bad { color: var(--confidence-ambiguous); font-weight: 600; }
.uc-out .warn { color: var(--confidence-inherited); font-weight: 600; }
.uc-label {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    opacity: .6;
    margin: 1.3rem 0 -.3rem;
    font-weight: 700;
}
.uc-benefit {
    border-left: 3px solid var(--primary);
    background: var(--accent-wash);
    padding: 1.1rem 1.4rem;
    border-radius: 0 12px 12px 0;
    margin: 1.5rem 0;
}
.uc-benefit strong { color: var(--primary); }
.uc-note {
    font-size: .85rem;
    opacity: .7;
    border-top: 1px dashed var(--border-color);
    padding-top: 1rem;
    margin-top: 2.5rem;
}
.uc-nav-back {
    display: inline-block;
    margin: 1.5rem 0 0;
    font-weight: 600;
    opacity: .8;
}
.uc-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin: 2rem 0;
}
.uc-card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform .15s ease, border-color .15s ease;
}
.uc-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.uc-card .uc-card-icon { color: var(--primary); margin-bottom: .2rem; }
.uc-card h3 { margin: .6rem 0 .4rem; font-size: 1.15rem; }
.uc-card p { font-size: .92rem; opacity: .8; margin: 0; }
.uc-card .uc-card-cmds { margin-top: .8rem; }
.uc-card code {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: .78rem;
    padding: .1em .4em;
    border-radius: 4px;
    background: var(--bg-tertiary);
}
.uc-proof-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}
.uc-proof {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.2rem 1rem;
    text-align: center;
}
.uc-proof .num {
    font-size: 1.8rem;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
    color: var(--primary);
}
.uc-proof .lbl { font-size: .8rem; opacity: .75; margin-top: .3rem; }


/* ---- Added with the design-system pass -------------------------------- */

/* Screen-reader-only: table captions that shouldn't render visually. */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.uc-callout {
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary);
    border-radius: 0 10px 10px 0;
    background: var(--surface-sunken);
    padding: 0.9rem 1.25rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.6;
}

.uc-callout code {
    font-size: 0.85em;
}

/* The measured-results panel leads the page, so it reads as a card. */
.uc-result {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    background: var(--bg-card);
}

.uc-sub {
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.uc-methodology {
    margin-top: 2rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.uc-methodology summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
}

.uc-methodology p {
    margin: 0.75rem 0 0;
}

@media (max-width: 640px) {
    .uc-result {
        padding: 1.25rem 1rem;
    }
    .uc-step {
        padding: 1.2rem 1rem;
    }
    .uc-body h2 {
        font-size: 1.4rem;
    }
}