/* ============================================
   Tab Navigation (3D Effect) - Theme Compatible
   ============================================ */
   .tabs {
    display: flex;
    gap: 0.05rem;
    background: linear-gradient(180deg, var(--theme-primary, #2a3a4a) 0%, var(--theme-primaryDark, #1a2a3a) 100%);
    perspective: 500px;
    position: relative;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.7rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 700;
    background: linear-gradient(145deg, var(--theme-primary, #3a4a5a), var(--theme-primaryDark, #2a3a4a));
    border: none;
    cursor: pointer;
    color: var(--theme-text-light, #ccddee);
    transition: all 0.15s ease;
    border-radius: 12px 12px 8px 8px;
    position: relative;
    transform: translateY(2px);
    box-shadow: 0 4px 0 var(--theme-primaryDark, #0a1a2a), 0 2px 8px rgba(0,0,0,0.2);
    text-shadow: 0 1px 0 rgba(0,0,0,0.3);
}

.tab-btn:active {
    transform: translateY(4px);
    box-shadow: 0 1px 0 var(--theme-primaryDark, #0a1a2a), 0 2px 6px rgba(0,0,0,0.2);
}

.tab-btn.active {
    background: linear-gradient(145deg, var(--theme-bg-primary, white), var(--theme-text-secondary, gray));
    color: var(--theme-primary, #006195);
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--theme-accentDark, #a04010), 0 4px 12px rgba(0,0,0,0.3);
    text-shadow: 0 1px 1px rgba(0,0,0,0.2);
}

.tab-btn:hover:not(.active) {
    transform: translateY(0px);
    background: linear-gradient(145deg, var(--theme-primary-light, #4a5a6a), var(--theme-primary, #3a4a5a));
    color: var(--theme-warning, #ffddbb);
    box-shadow: 0 5px 0 var(--theme-primaryDark, #0a1a2a), 0 3px 10px rgba(0,0,0,0.25);
}

.tab-btn.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(180deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 100%);
    border-radius: 12px 12px 0 0;
    pointer-events: none;
}

.tabs::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 10px;
    right: 10px;
    height: 6px;
    background: rgba(0,0,0,0.2);
    filter: blur(3px);
    border-radius: 50%;
    z-index: -1;
}

@media (max-width: 768px) {
    .tab-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.7rem;
    }
}

/* ============================================
   KPI Group Cards
   ============================================ */
.kpi-group {
    animation: fadeInUp 0.4s ease-out;
    transition: transform 0.2s, box-shadow 0.2s;
}

.kpi-group:hover {
    transform: translateY(-4px);
    box-shadow: var(--theme-shadow-hover, 0 12px 28px rgba(0,0,0,0.25));
}

.kpi-group-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.6rem;
}

.kpi-group-cards .summary-kpi-card {
    transition: all 0.2s ease;
    cursor: default;
}

.kpi-group-cards .summary-kpi-card:hover {
    transform: translateY(-2px);
    background: rgba(0, 0, 0, 0.35) !important;
}

/* ============================================
   Metric Cards
   ============================================ */
.metric-card {
    flex: 1;
    min-width: 120px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 1rem;
    padding: 0.85rem 0.6rem;
    text-align: center;
    transition: var(--transition, all 0.2s ease);
}

.metric-card:hover {
    background: rgba(255, 255, 255, 0.13);
    transform: translateY(-2px);
}

.metric-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--theme-text-inverse, #fff);
}

.metric-label {
    font-size: 0.58rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 0.2rem;
    font-weight: 600;
}

/* Status Badges */
.status-good {
    background: rgba(68, 255, 68, 0.18);
    color: var(--theme-success, #6dff6d);
    border: 1px solid var(--theme-success, rgba(68, 255, 68, 0.35));
}

.status-warning {
    background: rgba(255, 170, 68, 0.18);
    color: var(--theme-warning, #ffc96d);
    border: 1px solid var(--theme-warning, rgba(255, 170, 68, 0.35));
}

.status-bad {
    background: rgba(255, 68, 68, 0.18);
    color: var(--theme-danger, #ff8080);
    border: 1px solid var(--theme-danger, rgba(255, 68, 68, 0.35));
}

/* ============================================
   Map Styles
   ============================================ */
.map-wrapper {
    margin-bottom: 1.4rem;
    border-radius: 1.4rem;
    overflow: hidden;
    box-shadow: var(--theme-shadow, 0 8px 28px rgba(0,0,0,0.14));
}

.map-header {
    background: linear-gradient(130deg, var(--theme-primary-dark, #1a3a4f), var(--theme-primary, #1f5068));
    padding: 0.55rem 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--theme-text-inverse, white);
    font-size: 0.75rem;
    font-weight: 700;
}

.map-header i {
    color: var(--theme-accent, #ff9f4a);
}

.map-container {
    height: 340px;
}

/* ============================================
   HRV Modal Components
   ============================================ */
.hrv-slider-container {
    margin: 1.2rem 0 0.8rem;
}

.hrv-slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--theme-text-secondary, #cbd5e6);
    margin-bottom: 0.4rem;
}

.hrv-range-slider {
    width: 100%;
    accent-color: var(--theme-accent, #ff9f4a);
    cursor: pointer;
}

.hrv-plot-container {
    background: var(--theme-primaryDark, #1e2f38);
    border-radius: 1.2rem;
    padding: 0.8rem;
    margin-top: 0.5rem;
}

.hrv-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.hrv-stat-card {
    background: var(--theme-bg-tertiary, #07151c);
    border-radius: 1rem;
    padding: 0.5rem 1rem;
    flex: 1;
    text-align: center;
    border-left: 3px solid var(--theme-accent, #ff9f4a);
}

.hrv-stat-card span:first-child {
    font-size: 0.6rem;
    text-transform: uppercase;
    color: var(--theme-text-secondary, #8aaec0);
}

.hrv-stat-card .stat-number {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--theme-text-primary, --theme-text-inverse);
}

/* ============================================
   Formula Lab Components
   ============================================ */
.formula-tab-container {
    background: linear-gradient(135deg, var(--theme-primaryDark, #0a1218), var(--theme-primary, #0e1a22));
    border-radius: 1.5rem;
    padding: 1.5rem;
    color: var(--theme-text-light, #e6f2ff);
}

.formula-tab-container h2 {
    margin-bottom: 1.2rem;
    font-size: 1.3rem;
    color: var(--theme-accent, #ff9f4a);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.formula-tab-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.formula-card {
    background: linear-gradient(135deg, var(--theme-primary, #132a33), var(--theme-primaryDark, #1c3b46));
    border-radius: 1rem;
    padding: 1rem;
    border: 1px solid var(--theme-border-medium, #2e5f6e);
    transition: all 0.2s ease;
}

.formula-card:hover {
    border-color: var(--theme-accent, #ff9f4a);
    transform: translateY(-2px);
}

.formula-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    color: var(--theme-warning, #ffddbb);
}

.formula-header .toggle-icon {
    font-size: 1rem;
    transition: transform 0.2s;
}

.formula-options {
    display: none;
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--theme-border-medium, #2e5f6e);
}

.formula-options.active {
    display: block;
}

.formula-option {
    margin: 0.8rem 0;
    padding: 0.8rem;
    background: var(--theme-primary, #0f2027);
    border-radius: 0.8rem;
}

.formula-option label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--theme-text-secondary, #c7e2f0);
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.formula-option input[type="checkbox"] {
    accent-color: var(--theme-accent, #ff9f4a);
    width: 16px;
    height: 16px;
}

.formula-latex-display {
    background: var(--theme-primaryDark, #0a1218);
    padding: 0.5rem;
    border-radius: 0.5rem;
    margin: 0.5rem 0;
    text-align: center;
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--theme-warning, #ffddbb);
    overflow-x: auto;
}

.formula-slider {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--theme-accent, #ff9f4a);
    height: 4px;
}

.formula-slider-value {
    display: inline-block;
    background: var(--theme-accent, #ff9f4a);
    color: var(--theme-primary-dark, #1a3a4f);
    padding: 0.1rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.6rem;
    font-weight: 800;
    margin-left: 0.5rem;
}

/* ============================================
   Athlete Expressions Tab
   ============================================ */
.athlete-expressions-container {
    padding: 0.5rem;
}

.athlete-expressions-container .expressions-header {
    margin-bottom: 1.8rem;
    text-align: center;
}

.athlete-expressions-container .expressions-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--theme-primary-dark, #1a3a4f), var(--theme-primary, #2c5a74));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.5rem;
}

.athlete-expressions-container .expressions-header p {
    color: var(--theme-text-secondary, #6c8eaa);
    font-size: 0.85rem;
}

.athlete-expressions-container .expressions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.expression-card {
    background: linear-gradient(145deg, var(--theme-bg-primary, #ffffff), var(--theme-bg-secondary, #f5f8fc));
    border-radius: 1.2rem;
    padding: 1rem 1.2rem;
    box-shadow: var(--theme-shadow-sm, 0 4px 12px rgba(0,0,0,0.06));
    transition: all 0.25s ease;
    border: 1px solid var(--theme-border-light, #e2edf2);
    position: relative;
    overflow: hidden;
}

.expression-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--theme-shadow, 0 12px 24px rgba(0,0,0,0.1));
    border-color: var(--theme-accent, #ff9f4a);
}

.expression-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--theme-accent, #ff9f4a), var(--theme-chart-heartrate, #ff6b6b));
    border-radius: 4px 0 0 4px;
}

.expression-name {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--theme-primary-dark, #1a3a4f);
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.expression-name code {
    background: var(--theme-bg-tertiary, #eef2f8);
    padding: 0.2rem 0.6rem;
    border-radius: 2rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--theme-accent, #ff9f4a);
}

.expression-description {
    font-size: 0.7rem;
    color: var(--theme-text-secondary, #6c8eaa);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.expression-value {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--theme-primary, #1f5068);
    margin: 0.5rem 0 0.3rem;
    display: flex;
    align-items: baseline;
    gap: 0.3rem;
    flex-wrap: wrap;
}

.expression-unit {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--theme-text-light, #8aaec0);
}

.expression-badge {
    display: inline-block;
    background: var(--theme-accent, #ff9f4a);
    padding: 0.2rem 0.6rem;
    border-radius: 2rem;
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--theme-primary-dark, #1a3a4f);
    margin-top: 0.4rem;
}

.expressions-footer {
    text-align: center;
    padding: 1rem;
    background: var(--theme-bg-tertiary, #eef2f8);
    border-radius: 1rem;
    font-size: 0.7rem;
    color: var(--theme-text-secondary, #6c8eaa);
    margin-top: 1rem;
}

.expressions-footer i {
    color: var(--theme-accent, #ff9f4a);
    margin-right: 0.4rem;
}

/* Disabled Tab Styles */
.tab-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.3);
    transform: none !important;
    box-shadow: 0 4px 0 var(--theme-primaryDark, #0a1a2a) !important;
}

.tab-btn.disabled:hover {
    transform: none !important;
    background: linear-gradient(145deg, var(--theme-primary, #3a4a5a), var(--theme-primaryDark, #2a3a4a)) !important;
    color: var(--theme-text-light, #ccddee) !important;
    box-shadow: 0 4px 0 var(--theme-primaryDark, #0a1a2a) !important;
    cursor: not-allowed;
}

.tab-btn.disabled:active {
    transform: translateY(2px) !important;
}

/* Tooltip for disabled tabs */
.tab-btn.disabled {
    position: relative;
}

.tab-btn.disabled:hover::after {
    content: attr(title);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: var(--theme-accent, #ff9f4a);
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: 20px;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    font-weight: normal;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.tab-btn.disabled:hover::before {
    content: '';
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent rgba(0, 0, 0, 0.85) transparent;
    z-index: 100;
    pointer-events: none;
}

@media (max-width: 768px) {
    .athlete-expressions-container .expressions-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Tooltip
   ============================================ */
.transparent-tooltip {
    position: fixed;
    background: transparent !important;
    color: var(--theme-text-primary, #000) !important;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 800 !important;
    font-family: 'Inter', monospace;
    pointer-events: none;
    z-index: 1000;
    white-space: nowrap;
}