/* =====================================================
   DASHBOARD TAB - Readiness, Acute Load, TSS, PMC
   Mobile-first responsive with centralized color variables
   ===================================================== */

#dashboard-tab.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
}

@media (min-width: 768px) {
    #dashboard-tab.active {
        padding: var(--spacing-md);
    }
}

/* ─── Dashboard Hero ──────────────────────── */
.dashboard-hero {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--color-gradient-orange);
    border: 1px solid #ffe4d6;
}

.dashboard-hero h2 {
    margin: 0;
    font-size: var(--font-size-xl);
    color: var(--color-text-dark);
    font-weight: var(--font-weight-semibold);
}

@media (min-width: 768px) {
    .dashboard-hero h2 {
        font-size: var(--font-size-2xl);
    }
}

.dashboard-hero p {
    margin: var(--spacing-sm) 0 0;
    color: var(--color-text-medium);
    font-size: var(--font-size-sm);
}

/* ─── Dashboard Topline Cards ──────────────────────── */
.dashboard-topline {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .dashboard-topline {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .dashboard-topline {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

.dashboard-mini-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.dashboard-mini-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
}

.dashboard-mini-card-wide {
    grid-column: span 1;
}

@media (min-width: 640px) {
    .dashboard-mini-card-wide {
        grid-column: span 2;
    }
}

.dashboard-mini-label {
    margin: 0;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-light);
    font-weight: var(--font-weight-semibold);
}

.dashboard-mini-value {
    margin: var(--spacing-sm) 0 var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-dark);
}

@media (min-width: 768px) {
    .dashboard-mini-value {
        font-size: var(--font-size-2xl);
    }
}

.dashboard-mini-subvalue {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.dashboard-mini-value-small {
    font-size: var(--font-size-base);
    line-height: 1.25;
}

.dashboard-mini-card small {
    color: var(--color-text-light);
    display: block;
    line-height: 1.35;
    font-size: var(--font-size-sm);
}

/* ─── Summary Grid ──────────────────────── */
.dashboard-summary-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .dashboard-summary-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* ─── Range Selector ──────────────────────── */
#dashboard-tab .dashboard-range-selector {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-sm);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
}

#dashboard-tab .range-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-bg-card);
    cursor: pointer;
    color: var(--color-text-dark);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

#dashboard-tab .range-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-bg-hover);
}

#dashboard-tab .range-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

#dashboard-tab .dashboard-range-selector input[type="text"] {
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    width: 90px;
    text-align: center;
    background: var(--color-bg-card);
    color: var(--color-text-dark);
    flex-shrink: 0;
}

#dashboard-tab .dashboard-range-selector input[type="text"]::placeholder {
    font-size: 0.72rem;
    color: var(--color-text-light);
}

#dashboard-tab #dashboard-date-apply {
    padding: 0.3rem 0.7rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    font-size: 0.78rem;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

#dashboard-tab #dashboard-date-apply:hover {
    background: var(--color-primary-dark, #e04800);
    box-shadow: var(--shadow-sm);
}

/* ─── Training Readiness ──────────────────────── */
.readiness-chart-container {
    position: relative;
}

.readiness-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.readiness-header h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--color-text-dark);
}

.readiness-header p {
    margin: 0;
    color: var(--color-text-medium);
    font-size: var(--font-size-sm);
}

/* ─── Readiness Layout (Responsive Grid) ──────────────────────── */
.readiness-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

@media (min-width: 1024px) {
    .readiness-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.readiness-gauge-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.readiness-explainer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ─── Readiness Top ──────────────────────── */
.readiness-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    align-items: stretch;
}

@media (min-width: 768px) {
    .readiness-top {
        grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
    }
}

.readiness-score-display {
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    flex: 0 0 auto;
    min-width: 160px;
    transition: all var(--transition-fast);
}

.readiness-score-display--switch {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.readiness-score-display--switch:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-secondary);
}

.readiness-score-display--switch:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.readiness-score-display--active {
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.28), var(--shadow-md);
    border-color: var(--color-secondary);
}

.readiness-score-value {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.readiness-score-value .score-number {
    font-size: 2.5rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.readiness-score-value .score-unit {
    font-size: 1rem;
    color: #666;
    font-weight: 600;
}

.readiness-score-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: #444;
    margin: 0;
}

.readiness-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
    gap: 0.75rem;
}

.readiness-metric-item {
    padding: 0.7rem;
    border-radius: 8px;
    background: #f7f7f7;
    font-size: 0.85rem;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.readiness-metric-item--switch {
    cursor: pointer;
}

.readiness-metric-item--switch:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08);
}

.readiness-metric-item--switch:focus-visible {
    outline: 2px solid #4f46e5;
    outline-offset: 2px;
}

.readiness-metric-item--active {
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.28), 0 8px 18px rgba(79, 70, 229, 0.14);
    transform: translateY(-1px);
}

.readiness-metric-item--disabled {
    cursor: default;
    opacity: 0.82;
}

.readiness-metric-label {
    color: #666;
    font-weight: 600;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
}

.readiness-metric-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #222;
}

.readiness-insights {
    padding: 1rem;
    border-radius: 10px;
    background: #f5f5f5;
    border-left: 4px solid;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #333;
    display: flex;
    align-items: center;
    min-height: 100%;
}

.readiness-timeline-container {
    grid-column: 1 / -1;
    height: 420px;
    display: flex;
    flex-direction: column;
}

.readiness-timeline-container canvas {
    flex: 1 1 auto;
    min-height: 340px;
}

/* ─── Acute Load ─────────────────────────────── */
.acute-load-chart-container {
    position: relative;
}

.acute-load-chart-container canvas {
    max-height: 280px;
    aspect-ratio: 21 / 7;
}

/* ─── TSS Chart ─────────────────────────────── */
#tss-bar-chart {
    max-height: 250px;
    aspect-ratio: 21 / 7;
}

.acute-load-chart-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.acute-load-chart-header h3 {
    margin-bottom: 0.2rem;
}

.acute-load-chart-header p {
    margin: 0;
    color: #666;
    font-size: 0.92rem;
}

.acute-load-mode-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.2rem;
    border: 1px solid #e6e6e6;
    border-radius: 999px;
    background: #f7f7f7;
}

.acute-load-mode-btn {
    border: 0;
    background: transparent;
    color: #666;
    padding: 0.28rem 0.62rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.acute-load-mode-btn.active {
    background: #fc5200;
    color: #fff;
    box-shadow: 0 2px 8px rgba(252, 82, 0, 0.18);
}

.acute-load-mode-btn:not(.active):hover {
    background: #ececec;
    color: #333;
}

.acute-load-explainer {
    margin-top: 1rem;
}

.acute-load-summary-card {
    border: 1px solid #ececec;
    border-radius: 12px;
    padding: 1rem;
    background: linear-gradient(180deg, #ffffff 0%, #fbfbfb 100%);
}

.acute-load-summary-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.85rem;
}

.acute-load-kicker {
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #666;
}

.acute-load-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.28rem 0.7rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 700;
}

.acute-load-summary-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.9rem;
    margin-bottom: 0.85rem;
}

.acute-load-summary-metrics div {
    display: flex;
    flex-direction: column;
    gap: 0.18rem;
}

.acute-load-summary-metrics strong {
    font-size: 1.05rem;
    color: #222;
}

.acute-load-summary-metrics span {
    color: #666;
    font-size: 0.86rem;
}

.acute-load-summary-card p {
    margin: 0;
    color: #444;
    line-height: 1.5;
}

/* ─── PMC Explainer ──────────────────────────── */
.pmc-explainer {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.9rem;
    margin-top: 1rem;
}

.pmc-explainer-profile {
    grid-column: 1 / -1;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    background: #fff6f1;
    border: 1px solid #ffdcca;
    color: #6c4a37;
    font-size: 0.9rem;
    line-height: 1.4;
}

.pmc-explainer-card {
    border: 1px solid #ececec;
    border-radius: 12px;
    padding: 0.95rem 1rem;
    background: linear-gradient(180deg, #ffffff 0%, #fbfbfb 100%);
}

.pmc-explainer-header {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.55rem;
    color: #222;
}

.pmc-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: currentColor;
    flex: 0 0 auto;
}

.pmc-explainer-value {
    margin-left: auto;
    font-weight: 700;
    color: #111;
}

.pmc-explainer-card p {
    margin: 0 0 0.45rem;
    font-size: 0.9rem;
    line-height: 1.4;
    color: #444;
}

.pmc-explainer-card small {
    display: block;
    color: #666;
    line-height: 1.45;
}

.pmc-explainer-ctl {
    color: #0074D9;
}

.pmc-explainer-atl {
    color: #FF7A45;
}

.pmc-explainer-tsb {
    color: #2ECC40;
}

.pmc-explainer-risk {
    color: #B83B5E;
}

/* ─── Responsive ────────────────────────────── */
@media (max-width: 1200px) {
    .readiness-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 840px) {
    .dashboard-mini-card-wide {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    #dashboard-tab {
        gap: 0.85rem;
    }

    #dashboard-tab .chart-container {
        padding: 0.95rem;
        border-radius: 12px;
    }

    #dashboard-tab .chart-container h3 {
        font-size: 1.02rem;
        line-height: 1.3;
        margin-bottom: 0.55rem;
    }

    #dashboard-tab .dashboard-range-selector {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.45rem;
    }

    #dashboard-tab .range-btn {
        width: 100%;
        justify-content: center;
        text-align: center;
        font-size: 0.82rem;
        padding: 0.5rem 0.42rem;
    }

    .dashboard-topline {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    .dashboard-mini-card {
        padding: 0.75rem 0.8rem;
    }

    .dashboard-summary-grid {
        grid-template-columns: 1fr;
        gap: 0.65rem;
        margin-bottom: 0.65rem;
    }

    #dashboard-summary .card {
        padding: 0.85rem;
        border-radius: 10px;
    }

    #dashboard-summary .card h3 {
        font-size: 0.95rem;
        margin-bottom: 0.45rem;
    }

    #dashboard-summary .card p {
        font-size: 1.45rem !important;
        line-height: 1.15;
    }

    #dashboard-tab .tss-unit-selector {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.45rem;
        margin-bottom: 0.7rem !important;
    }

    #dashboard-tab .tss-unit-selector label {
        display: flex;
        align-items: center;
        gap: 0.45rem;
        margin-right: 0 !important;
    }

    .readiness-header h3 {
        font-size: 1.02rem;
        margin: 0;
    }

    .readiness-header p {
        font-size: 0.84rem;
        line-height: 1.35;
    }

    .readiness-layout {
        gap: 0.95rem;
    }

    .readiness-gauge-section {
        min-height: 0;
    }

    #readiness-gauge-chart {
        width: 210px !important;
        height: 210px !important;
        max-width: 100%;
    }

    .readiness-top {
        grid-template-columns: 1fr;
        gap: 0.65rem;
    }

    .readiness-score-display {
        min-width: 0;
        padding: 0.95rem;
    }

    .readiness-score-value .score-number {
        font-size: 2.15rem;
    }

    .readiness-metrics {
        grid-template-columns: 1fr;
    }

    .readiness-metric-item {
        padding: 0.62rem;
    }

    .readiness-timeline-container {
        margin-top: 1rem !important;
        height: 300px;
    }

    .readiness-timeline-container h4 {
        margin: 0 0 0.5rem;
        font-size: 0.95rem;
    }

    #readiness-timeline-chart {
        height: 100% !important;
        min-height: 230px;
    }

    .acute-load-chart-header h3 {
        font-size: 1.02rem;
        margin: 0;
    }

    .acute-load-chart-header p {
        font-size: 0.84rem;
        line-height: 1.35;
    }

    #acute-load-chart {
        min-height: 260px;
    }

    .acute-load-summary-metrics {
        grid-template-columns: 1fr 1fr;
        gap: 0.55rem;
    }

    .pmc-explainer-card {
        padding: 0.8rem 0.82rem;
    }

    .pmc-explainer-header {
        align-items: flex-start;
        flex-wrap: wrap;
        row-gap: 0.28rem;
    }

    .pmc-explainer-value {
        margin-left: 0;
    }

    #goals-section>div:nth-child(3) {
        flex-direction: column !important;
        gap: 0.9rem !important;
    }

    #goal-metric-tabs,
    #goal-sport-tabs {
        gap: 0.4rem !important;
    }

    #goal-metric-tabs button,
    #goal-sport-tabs button {
        flex: 1 1 calc(50% - 0.4rem);
        min-width: 120px;
        text-align: center;
    }

    #goals-section input[type="number"] {
        width: 86px !important;
    }

    #goals-section h4 {
        font-size: 1rem;
    }

    #goals-section canvas {
        max-height: 240px !important;
    }
}

@media (max-width: 480px) {
    #dashboard-tab .dashboard-range-selector {
        grid-template-columns: 1fr;
    }

    .acute-load-summary-metrics {
        grid-template-columns: 1fr;
    }

    #goal-metric-tabs button,
    #goal-sport-tabs button {
        flex: 1 1 100%;
    }
}