/* ============================================================
   Play & Learn — list of tool demos
   ============================================================ */

.demos {
    padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(4rem, 7vw, 6rem);
    background: var(--paper);
}
.demos__inner {
    width: var(--container);
    margin-inline: auto;
}

.demo-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--paper-rule);
}

.demo {
    border-bottom: 1px solid var(--paper-rule);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: clamp(0.8rem, 2vw, 1.6rem);
    padding: clamp(1.2rem, 2vw, 1.7rem) 0;
}

.demo__num {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.06em;
    min-width: 2.5em;
}

.demo__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.1rem, 0.9rem + 0.5vw, 1.35rem);
    line-height: 1.25;
    color: var(--ink);
    margin: 0;
}
.demo__sub {
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--t-small);
    color: var(--ink-muted);
    margin-top: 0.3rem;
    line-height: 1.45;
    max-width: 60ch;
}

.demo__action {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.7em 1.1em;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: var(--t-small);
    letter-spacing: 0.02em;
    line-height: 1;
    white-space: nowrap;
    transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s var(--ease);
}

.demo__action--ready {
    background: var(--accent);
    color: #ffffff;
    border: 1px solid var(--accent);
}
.demo__action--ready:hover {
    background: var(--accent-deep);
    border-color: var(--accent-deep);
    transform: translateY(-1px);
}
.demo__action--ready .arrow {
    display: inline-block;
    transition: transform 0.25s var(--ease);
}
.demo__action--ready:hover .arrow {
    transform: translateX(3px);
}

.demo__action--pending {
    background: transparent;
    color: var(--ink-muted);
    border: 1px dashed var(--paper-rule);
    cursor: not-allowed;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

@media (max-width: 720px) {
    .demo {
        grid-template-columns: auto 1fr;
        row-gap: 0.9rem;
    }
    .demo__action {
        grid-column: 1 / -1;
        justify-self: start;
    }
}