:root {
    --vt-bg-top: #e6f4f6;
    --vt-bg-bottom: #f7fffc;
    --vt-surface: #ffffff;
    --vt-primary: #0f766e;
    --vt-primary-soft: #d1fae5;
    --vt-accent: #0ea5e9;
    --vt-muted: #4b5563;
    --vt-border: #d9ece9;
}

html,
body {
    margin: 0;
    font-family: "Nunito Sans", "Segoe UI", sans-serif;
    background: linear-gradient(165deg, var(--vt-bg-top) 0%, var(--vt-bg-bottom) 70%);
    color: #0f172a;
}

a,
.btn-link {
    color: var(--vt-primary);
}

#app {
    min-height: 100vh;
}

.page-card,
.stat-card,
.chart-card {
    background: var(--vt-surface);
    border: 1px solid var(--vt-border);
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.page-card {
    padding: 1.25rem;
}

.headline-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.stats-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    margin: 1rem 0;
}

.stat-card,
.chart-card {
    padding: 1rem;
}

.chart-shell {
    height: 320px;
}

.selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 0.75rem;
}

.selector-btn {
    background: var(--vt-primary-soft);
    border: 1px solid #a7f3d0;
    color: #065f46;
    min-height: 52px;
    font-weight: 700;
}

.vital-form {
    display: grid;
    gap: 0.85rem;
}

.field-row {
    display: flex;
    gap: 0.5rem;
}

.field-group {
    display: grid;
    gap: 0.35rem;
}

.field-group label {
    font-weight: 700;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-list {
    margin: 1rem 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.5rem;
}

.user-list li {
    border: 1px solid var(--vt-border);
    border-radius: 10px;
    padding: 0.65rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.action-row {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.empty-state,
.note {
    color: var(--vt-muted);
}

.value-warn {
    color: #dc2626;
}

.alert-banner {
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 10px;
    color: #9a3412;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

h1,
h2 {
    margin-top: 0;
}

#blazor-error-ui {
    background: #fff3cd;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

@media (max-width: 640px) {
    .page-card {
        padding: 1rem;
    }

    .field-row {
        flex-direction: column;
    }

    .field-row .btn {
        width: 100%;
    }
}