:root {
    --bg: #f4f7fb;
    --white: #ffffff;
    --blue: #3b82f6;
    --blue-light: #dbeafe;
    --blue-dark: #1d4ed8;
    --green: #22c55e;
    --green-light: #dcfce7;
    --yellow: #f59e0b;
    --yellow-light: #fef3c7;
    --teal: #14b8a6;
    --teal-light: #ccfbf1;
    --coral: #f97316;
    --coral-light: #ffedd5;
    --purple: #8b5cf6;
    --purple-light: #ede9fe;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-400: #94a3b8;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .07), 0 1px 2px rgba(0, 0, 0, .04);
    --shadow: 0 4px 16px rgba(0, 0, 0, .08);
    --radius: 16px;
}

.dashboard-container {
    background: var(--bg);
    color: var(--gray-800);
    font-family: 'Nunito', sans-serif;
    min-height: 100vh;
}

.dashboard-container * {
    box-sizing: border-box;
}

header {
    background: var(--white);
    border-bottom: 2px solid var(--gray-200);
    padding: 0 36px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--blue), var(--teal));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

header h1 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--gray-800);
    margin: 0;
}

header h1 span {
    color: var(--blue);
}

.period-badge {
    background: var(--blue-light);
    color: var(--blue-dark);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 20px;
    letter-spacing: .3px;
}

main {
    padding: 28px 36px;
    max-width: 1520px;
    margin: 0 auto;
}

.section-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-400);
    margin-bottom: 14px;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.kpi-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.kpi {
    background: var(--white);
    border-radius: var(--radius);
    padding: 22px 22px 18px;
    box-shadow: var(--shadow-sm);
    border: 1.5px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: box-shadow .2s, transform .2s;
    position: relative;
    overflow: hidden;
}

.kpi:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.kpi-stripe {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 16px 0 0 16px;
}

.kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 10px;
}

.kpi-label {
    font-size: .72rem;
    font-weight: 600;
    color: var(--gray-400);
    letter-spacing: .5px;
    text-transform: uppercase;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 900;
    line-height: 1.1;
}

.kpi-sub {
    font-size: .72rem;
    font-weight: 500;
    color: var(--gray-400);
    margin-top: 2px;
}

.kpi.blue .kpi-icon {
    background: var(--blue-light);
}

.kpi.blue .kpi-value {
    color: var(--blue-dark);
}

.kpi.blue .kpi-stripe {
    background: var(--blue);
}

.kpi.green .kpi-icon {
    background: var(--green-light);
}

.kpi.green .kpi-value {
    color: #16a34a;
}

.kpi.green .kpi-stripe {
    background: var(--green);
}

.kpi.yellow .kpi-icon {
    background: var(--yellow-light);
}

.kpi.yellow .kpi-value {
    color: #b45309;
}

.kpi.yellow .kpi-stripe {
    background: var(--yellow);
}

.kpi.teal .kpi-icon {
    background: var(--teal-light);
}

.kpi.teal .kpi-value {
    color: #0f766e;
}

.kpi.teal .kpi-stripe {
    background: var(--teal);
}

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow-sm);
    border: 1.5px solid var(--gray-200);
    transition: box-shadow .2s;
}

.card:hover {
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 18px;
    gap: 12px;
    flex-wrap: wrap;
}

.card-label {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
    margin-bottom: 2px;
}

.card-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--gray-800);
}

.tabs {
    display: flex;
    gap: 4px;
    background: var(--gray-100);
    border-radius: 8px;
    padding: 3px;
}

.tab {
    font-family: 'Nunito', sans-serif;
    font-size: .72rem;
    font-weight: 700;
    padding: 5px 13px;
    border-radius: 6px;
    cursor: pointer;
    color: var(--gray-600);
    transition: all .15s;
    border: none;
    background: transparent;
}

.tab.active {
    background: var(--white);
    color: var(--blue-dark);
    box-shadow: var(--shadow-sm);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
}

.grid-full {
    margin-bottom: 18px;
}

.inline-legend {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.leg {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: .7rem;
    font-weight: 600;
    color: var(--gray-600);
}

.leg-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
}

.talla-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.talla-btn {
    font-family: 'Nunito', sans-serif;
    font-size: .7rem;
    font-weight: 700;
    padding: 4px 11px;
    border-radius: 20px;
    cursor: pointer;
    border: 1.5px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-600);
    transition: all .15s;
}

.talla-btn:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.talla-btn.sel-0 {
    background: #3b82f6;
    border-color: #3b82f6;
    color: #fff;
}

.talla-btn.sel-1 {
    background: #22c55e;
    border-color: #22c55e;
    color: #fff;
}

.talla-btn.sel-2 {
    background: #f59e0b;
    border-color: #f59e0b;
    color: #fff;
}

.talla-btn.sel-3 {
    background: #f97316;
    border-color: #f97316;
    color: #fff;
}

.talla-btn.sel-4 {
    background: #8b5cf6;
    border-color: #8b5cf6;
    color: #fff;
}

.talla-btn.sel-5 {
    background: #14b8a6;
    border-color: #14b8a6;
    color: #fff;
}

.note {
    font-size: .7rem;
    color: var(--gray-400);
    font-weight: 500;
    margin-top: 6px;
}

@media(max-width:1100px) {
    .kpi-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }
}

@media(max-width:600px) {
    main {
        padding: 14px;
    }

    header {
        padding: 0 16px;
    }

    .kpi-row {
        grid-template-columns: 1fr 1fr;
    }

    .kpi-value {
        font-size: 1.3rem;
    }
}