/* =========================================================
   Custom Products — Section 4 systems in use
   ========================================================= */

.nx-app-use {
    --nx-bg: #07080A;
    --nx-text: #F5F7FA;
    --nx-text-muted: #9299A5;
    --nx-border: rgba(255, 255, 255, 0.08);
    --nx-accent: #4F7CFF;
    --nx-content: 1320px;
    --nx-pad: clamp(1.25rem, 4vw, 4rem);
    background: var(--nx-bg);
    color: var(--nx-text);
    padding: clamp(5rem, 12vh, 8.5rem) 0;
    border-top: 1px solid var(--nx-border);
    overflow-x: clip;
}

.nx-app-use__inner {
    width: 100%;
    max-width: var(--nx-content);
    margin: 0 auto;
    padding: 0 var(--nx-pad);
}

body.nx-app-page .nx-app-use h2 {
    margin: 0 0 clamp(2.25rem, 5vw, 3.5rem);
    max-width: 16ch;
    font-family: var(--font-display, 'Syne', sans-serif);
    font-size: clamp(2.1rem, 4.2vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.nx-app-scene {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(1.5rem, 4vw, 3.5rem);
    align-items: center;
    padding: clamp(1.75rem, 4vw, 2.75rem) 0;
    border-top: 1px solid var(--nx-border);
}

.nx-app-scene--flip { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }
.nx-app-scene--flip > div:first-child { order: 2; }

.nx-app-scene__index {
    margin: 0 0 0.7rem;
    font-family: var(--font-body, 'DM Sans', sans-serif);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--nx-text-muted);
}

.nx-app-scene__index span { color: var(--nx-accent); margin-right: 0.45rem; }

body.nx-app-page .nx-app-scene h3 {
    margin: 0 0 0.7rem;
    max-width: 16ch;
    font-family: var(--font-display, 'Syne', sans-serif);
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    letter-spacing: -0.035em;
    line-height: 1.1;
}

.nx-app-scene p:last-child {
    margin: 0;
    max-width: 32rem;
    font-family: var(--font-body, 'DM Sans', sans-serif);
    color: var(--nx-text-muted);
    line-height: 1.65;
}

.nx-app-panel,
.nx-app-boardviz,
.nx-app-cal {
    background: #0D0F12;
    border: 1px solid var(--nx-border);
    border-radius: 12px;
    padding: 1rem 1.1rem 1.15rem;
}

.nx-app-panel__bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.85rem;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--nx-text-muted);
}

.nx-app-panel__hello {
    margin: 0 0 0.75rem;
    font-family: var(--font-display, 'Syne', sans-serif);
    font-size: 1.2rem;
}

.nx-app-panel__cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.nx-app-panel__cards span {
    display: flex;
    justify-content: space-between;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--nx-border);
    font-family: var(--font-body, 'DM Sans', sans-serif);
    font-size: 0.78rem;
    color: var(--nx-text-muted);
}

.nx-app-panel__line {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-top: 1px solid var(--nx-border);
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.72rem;
    color: var(--nx-text-muted);
}

.nx-app-panel__line.is-on { color: var(--nx-text); }
.nx-app-panel__line em { font-style: normal; }
.nx-app-panel__line b { font-weight: 500; color: var(--nx-accent); }

.nx-app-boardviz {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
    min-height: 210px;
}

.nx-app-boardviz > div {
    padding: 0.7rem;
    border: 1px solid var(--nx-border);
    background: rgba(255, 255, 255, 0.02);
}

.nx-app-boardviz p {
    margin: 0 0 0.7rem;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--nx-text-muted);
}

.nx-app-boardviz span {
    display: block;
    height: 2.1rem;
    margin-bottom: 0.4rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
}

.nx-app-boardviz .is-on {
    border-color: rgba(79, 124, 255, 0.45);
    background: rgba(79, 124, 255, 0.08);
}

.nx-app-boardviz .is-on span { background: rgba(79, 124, 255, 0.28); }

.nx-app-cal__head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.85rem;
    font-family: var(--font-body, 'DM Sans', sans-serif);
    font-size: 0.85rem;
}

.nx-app-cal__head span { color: var(--nx-text-muted); }

.nx-app-cal__grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.35rem;
    margin-bottom: 0.85rem;
}

.nx-app-cal__grid i {
    display: block;
    aspect-ratio: 1;
    border: 1px solid var(--nx-border);
    background: rgba(255, 255, 255, 0.03);
}

.nx-app-cal__grid i.is-on {
    background: rgba(79, 124, 255, 0.45);
    border-color: var(--nx-accent);
}

.nx-app-cal p {
    margin: 0;
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: 0.72rem;
    color: var(--nx-text-muted);
}

.nx-app-cal em { font-style: normal; color: var(--nx-text); }

@media (max-width: 800px) {
    .nx-app-scene,
    .nx-app-scene--flip {
        grid-template-columns: 1fr;
    }

    .nx-app-scene--flip > div:first-child { order: 0; }
}