/* ===========================================
   Responsive Breakpoints
   =========================================== */

/* ── Small Desktop / Large Tablet (≤ 1100px) ───────────── */
@media screen and (max-width: 1100px) {
    .app-header,
    .command-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-summary,
    .command-left,
    .command-right {
        width: 100%;
    }

    .comparison-col:not(.featured-col) {
        flex: 1 1 calc(33.333% - var(--sp-3));
    }
}

/* ── Tablet (≤ 900px) ────────────────────── */
@media screen and (max-width: 900px) {
    .dashboard-shell {
        padding: 0 var(--sp-3);
    }

    .app-header,
    .command-bar {
        padding: var(--sp-5);
    }

    .four-col {
        flex: 1 1 48%;
        min-width: 48%;
    }

    .comparison-board {
        gap: var(--sp-3);
    }

    .featured-col,
    .comparison-col:not(.featured-col) {
        flex: 1 1 calc(50% - var(--sp-2));
    }

    .featured-col {
        flex-basis: 100%;
    }

    .team-detail-grid { flex-direction: column; }

    .team-left-col,
    .team-right-col {
        width: 100% !important;
        display: block !important;
        margin-right: 0 !important;
    }

    .content-shell {
        padding-top: var(--sp-5);
    }

    .tab-nav .dash-tab,
    .tab-nav .tab {
        padding: var(--sp-2) var(--sp-3) !important;
        font-size: var(--text-xs) !important;
    }
}

/* ── Mid Tablet / Large Phone (≤ 768px) ────────────────── */
@media screen and (max-width: 768px) {
    .page-briefing {
        gap: var(--sp-2);
    }

    .briefing-chip {
        min-width: calc(50% - var(--sp-2));
    }

    .command-right {
        align-items: stretch;
        justify-content: flex-start;
    }

    .command-control,
    .command-action-group {
        width: 100%;
    }

    .command-action-group {
        flex-wrap: wrap;
    }
}

/* ── Phone (≤ 600px) ─────────────────────── */
@media screen and (max-width: 600px) {
    .dashboard-shell {
        padding: 0 var(--sp-2);
    }

    .app-header,
    .command-bar {
        padding: var(--sp-4);
    }

    .header-title {
        font-size: 1.5rem !important;
    }

    h3 { font-size: 1rem !important; }

    .masthead-chip-row,
    .page-briefing {
        gap: var(--sp-2);
    }

    .briefing-chip {
        min-width: 100%;
    }

    .comparison-col,
    .featured-col,
    .dash-graph {
        flex: 1 1 100%;
        min-width: 100%;
    }

    .content-shell {
        padding-top: var(--sp-4);
        padding-bottom: var(--sp-8);
    }

    .js-plotly-plot { min-width: 300px; }

    .panel { padding: var(--sp-4); }
    .panel-heading {
        padding: var(--sp-4) var(--sp-4) var(--sp-3);
    }
    .panel-body { padding: 0 var(--sp-4) var(--sp-4); }

    .login-card { padding: var(--sp-6); }

    .tab-nav .dash-tab,
    .tab-nav .tab {
        padding: var(--sp-2) var(--sp-3) !important;
        font-size: 0.7rem !important;
        letter-spacing: 0.04em !important;
    }

    .team-icon {
        width: 112px;
        height: 112px;
    }
}